KR20090109161A - Assembled type moving screen apparatus - Google Patents

Abstract

PURPOSE: A prefabricated moving screen apparatus is provided to replace the screen blade in part when damaged and to regulate the whole width according to need. CONSTITUTION: A prefabricated moving screen apparatus comprises a motor(10), a chain(11), and a screen structure(12) for raising suspended materials. The screen structure comprises screen blades which are attached to the inner side of the chain in the width direction and connected together by a support bar.

Description

Assembled type moving screen apparatus

The present invention relates to an assembled moving screen device, and more particularly, to an assembled moving screen device for effectively separating suspended matter and sediment in a water treatment plant, such as purified water, sewage, and wastewater treatment plants.

In general, as the industry develops, various inflows of impurities, impurities, suspended solids, and impurities of different sizes and types are contained in the influent of various pumping stations and treatment plants.

In particular, during heavy rains and floods, various contaminants floated with rainwater flow into the intakes of the intake pumping stations and the reservoirs of the drainage pumping stations.

In this way, if the contaminants mixed with the inflow water are not removed quickly, the water channel is flooded, causing various problems such as clogging of the pump at various pump stations.

Thus, a moving screen device is used to reliably separate these contaminants from the influent.

In the related art, Korean Patent No. 10-0719521 has been presented.

Usually, the moving screen device for removing floating matters from influent water in water treatment plant, sewage treatment plant, and wastewater treatment plant is fixed and transferred to the transfer chain moving by a driving means such as a motor. A screen structure for filtering, a brush for removing suspended matter caught in the screen structure, and the like.

Among them, the screen structure is provided with a fixed frame having a substantially rectangular frame shape at regular intervals on the transfer chain of the transfer device moving by the driving force of the driving means, and extends upward and downward to form a plurality of screen bars protruding to the upper side of the fixing frame. And, it is made of a structure formed by forming a rake to protrude forward at the bottom of the screen bar.

The moving screen device of the water treatment plant has one end of the transfer chain moving by the driving means submerged in water and fixed at equal intervals on the transfer chain so that the moving screen plate transfers the floating plate in the inflow water flowing along the waterway to discharge the ground floating material. It is separated on the side, and the floating matter which is not separated therein and caught in the gap of the screen plate is removed by using a scraper installed on the floating discharge side and rotating.

The screen plate of such a water treatment plant is fixed to a plurality of screen bars formed long in a wedge shape at regular intervals on a rectangular support frame having open upper and lower sides, and drained through the screen bars. To make it happen.

However, the existing moving screen device has the following disadvantages.

In the meantime, the rake joint of the known screen plate is manually welded / fixed between the screen bars by the operator by hand, so that the working time is excessive and the health problems due to the welding work exist. There is a frequent problem that the welding portion of the rake is broken or separated.

In addition, even if a part of the sprint plate is damaged, it is necessary to replace the entire expensive screen plate, there is a problem that takes a huge maintenance cost.

In addition, in the case of the screen plate is manufactured integrally according to a predetermined standard, there is a disadvantage that can not be installed according to a variety of site conditions, and also in terms of cost is expensive, there is an disadvantage in terms of economics such as the initial investment costs increase.

In addition, the lower sediment accumulated in the bottom penetrates into the chain or the like, causing a malfunction of the apparatus.

Therefore, the present invention has been devised in view of the above, by forming a combination of a plurality of screen blades capable of disassembling and assembling the screen structure to filter the suspended matter contained in the influent, replacement even in case of partial damage of the screen blade It is easy and economical, and its overall width is adjustable, so it can be installed on site customized, and it is easy to handle and maintain, thus providing an assembled moving screen device that can reduce costs, improve durability, and extend its life. There is this.

In addition, another object of the present invention is to install the rotary sensing encoder to detect the break of one of the chains on both chains, so that if the rotation ratio of the chain is not the same in both sides to stop the operation immediately to ensure the safety of the device It is to provide a type moving screen device.

In addition, another object of the present invention is to implement a new type of moving screen system combining the means for discharging the sediment and the moving screen means in a blower method, it is possible to efficiently remove the float and the sediment at the same time and to The present invention provides an assembled moving screen device capable of preventing a malfunction of a device by removing a penetrating sediment.

In order to achieve the above object, the assembled moving screen device provided by the present invention includes a motor for providing power, a chain for transporting, a screen structure for raising a float, and the like, in particular, the screen structure is provided on the inside of both chains. Characterized in that it is made of a prefabricated form of laminating and combining a plurality of screen blades in the width direction.

Here, the screen blades of the screen structure may be applied to be assembled in the form of being penetrated and supported by at least one bar installed across both adapters of the chain in a laminated combination state.

In addition, in order to adjust the spacing of the screen blades, the interposed between each of the screen blades in the form of sandwiching the bush for adjusting the blade spacing can be applied.

In addition, in the case of the chain, it is preferable to employ a type that can immediately detect the break of any one of the chain by employing the rotary sensing encoder installed in each of the chain in order to detect the break.

In addition, the moving screen device of the present invention may further include a sediment removal device installed on one side of the chain including the screen structure to take out the sediment accumulated in the bottom of the reservoir by a blower method.

Since the assembled moving screen device provided by the present invention is a form of assembling a plurality of screen blades to complete the entire screen structure, even if some screen blades are easily disassembled, only the damaged parts can be replaced, The width of the screen structure can be arbitrarily adjusted according to the conditions or situation, so it can be installed on site.

In addition, since the screen structure is prefabricated, it is easy to handle, maintain, inspect, and the like, thereby improving the overall durability and extending the life of the device.

In addition, since the blower type sediment discharge device is provided together, it is possible to efficiently remove not only the suspended matter but also the sediment.

In addition, the breakage of the chain can be detected early so that the device can be safely protected and the device can be operated effectively.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are a side view and a partially enlarged view showing the overall installation form of the assembled moving screen device according to an embodiment of the present invention.

As shown in Figure 1 and 2, the assembled moving screen device is to remove the float in the form of pulling the chain 11 by using the power of the motor (10).

The chain 11 has two rows as transfer means, and a screen structure 12 of a prefabricated structure is installed between the two rows of chains 11, which can directly lift a float.

The screen structure 12 is formed in the form of an assembly made by combining a plurality of screen blades 13, the assembly is located in the chain 11 on both sides are arranged at regular intervals along the longitudinal direction of the chain 11 The structure can be assembled integrally with the chain (11) side.

The chain 11 including the plurality of screen structures 12 is installed in an inclined structure over the inside and outside of the reservoir, and can be driven by the operation of the motor 10 to pull up the floats.

The present invention provides a means for protecting the device by immediately stopping the operation of the device by detecting the break of the chain (11).

To this end, one side of the chain 11 is provided with a rotation sensing encoder 17 for detecting the chain driving state while rotating in engagement with the chain drive via a sprocket, etc., output from the rotation sensing encoder 17 at this time The signal is sent to the control unit (C) side of the moving screen device is used as a signal that can take follow-up actions, such as stopping the operation of the device.

For example, the rotation sensing encoders 17 are respectively installed on both chains 11 and rotated together with the chains, so that any one chain is broken from the rotation sensing encoder 17 on the side of the broken chain at this time. The signal according to the rotational speed is output, and the output signal is input to the control unit to inform the manager with a warning light or a warning sound, or the operation of the device is stopped immediately in connection with the signal of the rotation detecting encoder 17. You may.

On the other hand, the present invention provides a means for removing the suspended matter as well as the sediment deposited on the bottom of the reservoir.

To this end, on one side of the chain 11 including the screen structure 12 which is installed in an inclined structure over the inside and the outside of the reservoir, a sediment removal device 18 for pulling out the sediment accumulated on the bottom of the reservoir by a blower method is provided. Is installed.

The sediment removing device 18 includes a discharge pipe 24 serving as a discharge passage of the sediment, a blower 23 for blowing high pressure compressed air, and the pipe extending from the blower 23 side. Consists of a structure connected to the lower end of the discharge pipe (24).

Accordingly, when high-pressure air is blown toward the sediment accumulated on the bottom of the reservoir, water and air are discharged together through the discharge pipe 24, and at the same time, the sediment may be discharged accordingly. Accordingly, it is possible to prevent the sediment is deposited to penetrate the chain (11).

In particular, the present invention provides a screen structure 12 made of a prefabricated form in which a plurality of screen blades 13 are laminated and combined.

To this end, as shown in Figures 3 and 4, there are provided a plurality of screen blades 13 having a body portion 21 in the form of a square plate and two legs 22 in the lower portion, such a screen The blades 13 are arranged side by side along the width direction in a standing position between the chains 11 on both sides.

The screen blades 13 thus arranged are integrally bound by at least two bars 15.

For example, a hole 19 is formed in the leg portion 22 of each screen blade 13 arranged side by side along the width direction, and the bar 15 is fitted through the hole 19. Each screen blade 13 can be bound together by a bar 15.

At this time, both ends of the bar 15 are fastened to the adapter 14, and both adapters 14 are fastened to the attach 20 in the chain 11, respectively, thereby providing the bar 15 and the adapter 14. One whole screen blade bundle including a can be installed on the chain (11) side.

At this time, the screen blade 13 is assembled in the state fitted to the bar 15, and the bar 15 is connected to the adapter 14 by screw and nut, bar 15 on the adapter 14 side After removing), the screen blade 13 can be easily replaced by a simple operation of disassembling the screen blades 13.

Accordingly, even when some of the screen blades 13 are damaged, instead of replacing the entire screen structure 12 as before, only the damaged screen blades 13 can be removed and replaced with new ones. The maintenance cost can be greatly reduced.

In addition, the bush 16 is interposed between the blade and the blade for adjusting the distance between the screen blades 13, the bush 16 can be mounted in the form of being fitted to the bar (15).

At this time, if the length of the bush 16 is properly selected, the interval of the screen blade 13 may be adjusted.

As such, each screen blade 13 is installed in a prefabricated form, so that the overall width of the screen structure 12 (typically about 1 to 4 m) is wide or in such a way as to appropriately increase or decrease the number of screen blades 13. It can be narrowly adjusted, and thus, there is an advantage that the construction can be suitably made according to the width of the chain installed according to the installation conditions of the site.

Therefore, when the screen assembly 12 having the screen blades as described above is assembled at regular intervals along the longitudinal direction of the chain 11, one structure consisting of the screen assembly 12 and the chain 11 is completed. If this is installed in an inclined structure over the inside and outside of the reservoir, and operated by using the motor 10 drive, the chain 10 is driven, the plurality of screen blades 13 can be pulled up by lifting the float. At this time, the water may escape into the gap between the screen blades (13).

1 is a side view showing the overall installation form of the assembled moving screen device according to an embodiment of the present invention

2 is an enlarged view of a part of FIG. 1;

Figure 3 is a perspective view showing the separated form of the screen blade constituting the screen structure in the assembled moving screen device according to an embodiment of the present invention

Figure 4 is a perspective view showing the assembled form of the screen blade constituting the screen structure in the assembled moving screen device according to an embodiment of the present invention

<Description of the symbols for the main parts of the drawings>

10 motor 11: chain

12 screen structure 13 screen blade

14 adapter 15 bar

16: bush 17: encoder

18: sediment removal device 19: hole

20: Attach 21: body

22: leg 23: blower

24: discharge pipe

Claims (7)

In a moving screen device comprising a motor 10 for power supply, a chain 11 for transport, and a screen structure 12 for lifting a float, The screen structure 12 is a prefabricated moving screen device, characterized in that made in the form of a prefabricated combination of stacking a plurality of screen blades 13 in the width direction on the inside of both chains (11). 2. The screen blades (13) of the screen structure (12) according to claim 1, wherein the screen blades (13) of the screen structure (12) are penetrated by at least one bar (15) which is installed across both adapters (14) of the chain (11) in a laminated combination. Assembled moving screen device, characterized in that assembled in the form. 3. The assembled moving screen device according to claim 1 or 2, wherein a bush (16) for adjusting the blade spacing is interposed between the screen blades (13) in the form of a bar (15). 3. The assembled moving screen device according to claim 1 or 2, wherein the bar (15) of the screen structure (12) is connected to the adapter (14) side by screw and nut so as to be disassembled. 2. The assembled moving screen device according to claim 1, wherein the chain (11) is provided with a rotary sensing encoder (17) for detecting breaks and the like. The assembled moving screen device according to claim 5, wherein the rotation sensing encoders (17) are respectively installed on both chains (11) to detect breakage of any one chain. The apparatus of claim 1, further comprising a sediment removal device 18 installed at one side of the chain 11 including the screen structure 12 to take out the sediment accumulated on the bottom of the reservoir in a blower manner. Assembly moving screen device.

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