KR101702836B1 - Apparatus of reducing non-point pollution material that has a screen with self-cleaning functions - Google Patents

Abstract

The present invention relates to a non-point contamination purification apparatus having a self-cleaning function. A technical point of the present invention is to maximize a performance of usage of a filter of a filtering tank and a settling screen of a sedimentation tank when processing rainwater generated by the non-point contamination source. In the sedimentation tank, a shield-type or tunnel-type screen is built to expand a filtering area using a curved surface. The screen has a flow-proportional impact type (or flow type) non-powered vibrator formed on an inner peripheral surface or a lower side in order to prevent fine contaminants from clogging the screen. More specifically, a press type dehydrator on a filter bed of the filtering tank presses the contaminants of a filtering layer up and down in order to squeeze the contaminants during a washing operation executed in accordance with a set period. The strength of the pressing and dewatering operation in accordance with a degree of clogging. The present invention can significantly enhance a performance of a filtering process in order to significantly reduce the post-processing costs and maintenance costs as well as preventing clogging, reverse flow, and floods using the quick and excellent performance of processing rainwater when compared to a conventional method.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a non-point pollution control apparatus equipped with a screen having a self-cleaning function,

The present invention maximizes the use performance of the settling screen and the filtration filter in the case of non-point pollution source treatment. Inside the settling tank, a shield type or tunnel type screen having an expanded filtering area due to a curved surface is installed. In order to prevent screen clogging due to fine contaminants, a flow velocity proportional impulsive vibratory vibrator is formed on a lower side or an inner circumferential surface, and in particular, a filter bed of a filtration tank is provided with a filter type dehydrator, The filter can be selected depending on the degree of clogging. This is because the filtration performance is greatly improved and the post-treatment cost and the maintenance cost are greatly reduced, The outstanding performance of superior A non-point pollution purification apparatus equipped with a screen having a self-cleaning function, characterized by being capable of remarkably preventing the occurrence of clogging, backflow and flood.

The pollutants affecting the water system are divided into point-source and non-point source.

In this case, the point source is a pollutant source such as domestic sewage or factory wastewater which can be expressed as a single point, and the pollutant movement path is clear and easy to process.

On the other hand, the nonpoint source is a pollutant source that pollutants on the ground surface are washed out by rainwater during rainfall, and the pollutant is very difficult to treat due to the concentration of the outflow amount during rainfall.

Thus, in the case of non-point-pollution sources, pollution sources are distributed in a wide area, and various pollutants on the impervious surface are washed in the first-flush at the beginning of rainfall, And the variation of the flow rate with time is very large.

In this case, in case of urban area or industrial complex, the possibility of containing toxic substances such as heavy metals is high, and a different approach from the conventional water treatment method is needed.

As a method of treating pollutants in the early stage, storage type, permeability, vegetation type, device type, and the like have been proposed.

At this time, the reservoir type removes the particulate pollutants by sedimentation, and the permeable type increases the underground penetration ability, thereby reducing the storm drainage and utilizing the underground soil as a filter.

As vegetation type, there are mainly vegetation channel and vegetation filtration as a pretreatment method, and the device type is installed in a pipeline, and it is applied to an urban area where rainwater flows out through pipelines. And can be classified into a vortex type, a sedimentation type, a filtration type, and the like.

Therefore, the apparatus type is predominantly composed of a vortex type method in which a vortex is formed by using a centrifugal force to precipitate a suspended substance, and a cartridge type filter filtration type method.

At this time, the conventional vortex type has a disadvantage in that the particulate matter is not easily removed when the vortex is not sufficiently generated, and the removal efficiency thereof is rapidly lowered.

In addition, since the vortex-type facility deposits particulate matter by the centrifugal force generated by the vortex, it is difficult to sufficiently remove the contaminant due to the limitation that the particulate matter can not be sufficiently removed.

And the vortex type facility is a facility that has a limit to remove the micro pollutant which occupies most of the particulate matter.

Accordingly, since the filtration type facility is difficult to precipitate rapidly like a vortex type facility, it has disadvantages that the required capacity and the required site of the apparatus are large and the filtration type is the surface filtration type, so that it can be easily clogged.

On the other hand, in the prior art Patent No. 10-0955909 (Apr. 30, 2010), an inflow tank for inflowing stormwater and precipitating sediments and removing contaminants, and an inflow pipe connected to the inflow tank, An initial quality treating apparatus including a filtration tank for passing a filtration treatment through a porous media layer having a particle diameter of 3 mm or less in a downflow fashion, a backwash pipe for backwashing the filtration layer, and a discharge tank for discharging treated water have.

However, in the above-mentioned conventional art, there is no separate filtering device in the process of moving the stormwater from the inflow tank corresponding to the settling tank to the filtration tank, so that floating matters such as fine contaminants and impurities are simultaneously transferred, The filtration performance is decreased and the filtration speed is decreased. Thus, the filtration function is deteriorated, and further, there arises a problem that the backwash and the flood are generated.

In order to improve this, a plate-shaped screen screen is installed in the settling tank, and backwashing facilities are added to the filtration tank. However, the plate screen is formed as a simple plate material compared to the flow rate, In particular, conventional backwashing devices spray high-pressure water on the filtration filter body to clean up residual debris in the thickness of the filter. However, the water spraying operation only removes the contaminants deep inside the filter layer There are a lot of difficulties.

1. Korean Registered Patent No. 10-0955909 (Registered on April 30, 2010)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide a sedimentation screen and filtration filter used for stormwater treatment in nonpoint pollution sources such as residential areas, industrial areas, commercial areas, roads, In order to maximize the performance, a shield type or tunnel type screen having a filtering area expanded due to a curved surface is installed in the sedimentation tank, and the screen is provided on the lower one side or the inner peripheral side to prevent screen clogging due to fine contaminants A flow-rate-proportional impact-free vibratory vibrator is formed. In particular, in the filter bed of the filtration tank, the pressure-type dehydrator is squeezed while pressing the filter layer contaminants downwardly and downwardly while pressing according to the set cycle. And also allows the user to select whether or not to use A screen having a self-cleaning function, characterized in that the treatment performance is greatly improved, the post-treatment cost and the maintenance cost are greatly reduced, and also the occurrence of clogging of the current- And an object of the present invention is to provide a non-point pollution purification apparatus equipped with the apparatus.

It is another object of the present invention to improve the washing performance by simultaneously spraying high-pressure air and high-pressure washing water on a screen at the time of operating the non-powered vibrator of the settling tank.

Accordingly, it is an object of the present invention to improve the cleaning performance of the filter bed by spraying high-pressure air and high-pressure washing water at the same time when the filter-type dehydrator of the filtration tank is operated.

In order to achieve the above object, the present invention provides a non-point pollution purification apparatus comprising a sedimentation tank (100) and a filtration tank (200) by a partition wall (300), wherein the sedimentation tank (100) Shield screen 120 is formed to remove fine contaminants and primary contaminants with respect to the rear end supporting plate 121. The screen 120 includes a mesh network 122 having a curved surface toward the inlet pipe 110, And a tunnel type space is formed from the partition wall. The screen 120 is formed on the surface thereof with a flow rate-proportional ball impact impulse vibrator 130 to prevent clogging of the mesh net 122 during filtering, The filter bed 210 is formed on one side of the partition wall 200 to perform filtration of the rainwater introduced through the lower passage 310 of the partition wall and the filter bed 210 is provided with numerous pores and elasticity- Filter (polyethylene type or A filter 220 is formed on the upper and lower sides of the filter bed 210 and a compression type dehydrator 230 is formed on the upper or lower surface of the filter bed 220 so as to support one side Or by wringing the filter bed 210 upon cleaning on both sides.

The non-powered vibrator 130 may include a plurality of blades 135 formed on a rotating body such that the rotating body rotates about a shaft shaft 134, And a plurality of projecting ribs 136 are formed at both ends of the shaft shaft 134 in the longitudinal direction of the shaft shaft 134. [ And the protruding rib 136 of the spindle is formed to push down the stopping jaw 138. The stopping jaw 138 rotates with respect to the hinge body 137, Are formed to strike the outer circumferential surface of the screen 120.

At this time, it is preferable that the impact rod 139 is formed with a cushioning member 139-1 made of rubber or urethane at the free end portion toward the screen 120 to prevent the screen 120 from being damaged or damaged .

The non-powered vibrator 130 may be formed in a manner such that a coil-wound type tension member 131 is formed at the lower portion of the mesh network 122 of the screen so as to form a receiving jaw, A branch coil spring 133 is branched for each of a plurality of cleaning balls 132 on the inner circumference and is coupled to the mesh net 122 so that the tension member 131 and the coil spring 133 are retracted The surface of the mesh net 122 is shaken or struck and the surface contaminants are removed and removed by the flow and impact phenomenon.

At this time, the compression-type dehydrator 230 is formed such that a check grill 231 is formed on the upper surface and the lower surface of the filter bed 210, a rack gear 232 is formed at one side of the grill, The gear 232 is formed so as to correspond to the drive pinion 234 of the servo motor 233 built in the waterproof housing so that the upper and lower grilles 231 are operated independently or interlockingly with the selected control when the servo motor 233 is operated, 0.0 > 210 < / RTI >

The partition wall 300 is formed with a through hole 320 for bypass at an upper portion located above the height of the screen 120 so that the through hole 320 flows straightly from the inlet pipe to the filtration hole As shown in FIG.

As described above, the present invention maximizes the use performance of the sedimentation screen and the filtration filter in the case of poor treatment occurring in non-point pollution sources such as residential areas, industrial areas, commercial areas, roads, A screen or tunnel type screen having an enlarged filtering area due to a curved surface is installed. The screen is provided with a flow rate-proportional impactless vibrator on a lower side or an inner circumferential surface to prevent screen clogging due to fine contaminants In particular, in the filter bed of the filtration tank, the filter type dehydrator presses the filtrate layer contaminants downward and downward while pressing the filter bed in accordance with the set cycle, and the filtration dehydration can be selected depending on the degree of clogging , Which greatly improves filtration performance, Doemeun not significantly reduce administrative costs as well as faster and there is that you can significantly prevent the war against blockage or backflow and flooding caused by the superior performance, excellent processing effects.

In addition, the present invention has the effect of improving the washing performance by simultaneously spraying the high-pressure air and the high-pressure washing water on the screen when the non-powered vibrator of the settling tank is operated.

Accordingly, the present invention has the effect of improving the cleaning performance of the filter bed by spraying the high-pressure air and the high-pressure cleaning water at the same time when the filter-type dehydrator of the filtration tank is operated.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing an example of a non-point pollution purification apparatus according to the present invention,
FIG. 2 is a cross-sectional side view of an example of a non-powered vibrator according to the present invention,
FIGS. 3 to 5 are views showing another embodiment of a non-powered vibrator according to the present invention, in which guide rails are laid so that a non-powered vibrator can be lifted up and down by an amount of rain or an optional power drive,
FIG. 6 is a view showing another embodiment of a non-powered vibrator according to the present invention, in which a non-powered vibrator is installed in the vicinity of a bottom of a settling chamber to strike a screen,
7 is an illustration showing the flow of rain in a nonpoint pollution cleaner according to the present invention,
8 is an exemplary view showing an operation state of the compression type dehydrator according to the present invention,
9 to 10 are views showing a state in which a cleaning ball is installed in a screen mesh net, a detailed view of a cleaning ball,
11 is a detailed view showing a slider and a slider rail provided at a lower portion of a screen and a lower end thereof being moved forward and backward with respect to an upper fixed end according to an inflow amount of rainwater, according to an additional embodiment of the non-dynamic vibrator according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

First, as shown in FIGS. 1 to 11, the non-point pollution cleaner of the present invention is largely composed of a sedimentation tank 100 and a filtration tank 200.

Accordingly, in the sedimentation tank 100, a shield screen 120 is formed to remove fine contaminants and primary contaminants from rainwater flowing through the water inlet pipe 110.

The screen 120 has a mesh net 122 formed with a curved surface toward the inlet pipe 110 with respect to the rear end support plate 121 to form a tunnel-shaped space from the partition.

At this time, the screen 120 is formed on the surface thereof with a flow rate-proportional ball impact impulse vibrator 130 to prevent clogging of the mesh net 122 during filtering.

The non-powered vibrator 130 may include a plurality of blades 135 formed on a rotating body such that the rotating body rotates about a shaft shaft 134, When the rain drops downward in one direction through the cover plate 139-2, the rainwater is formed to rotate while interlocking.

In this case, the non-powered vibrator of the above embodiment is installed at the lower part of the water inlet pipe. However, if necessary, it may be installed in a structure capable of lifting up and down through a guide rail, It may be formed on the upper side.

When the non-powered vibrator is installed directly below the water inlet pipe, the water pump is operated in a water-repellent manner so that the function is maintained even when the water level is increased in a state close to the inflow water.

At this time, a spindle having a plurality of protruding ribs 136 is formed at both end portions in the longitudinal direction of the shaft shaft 134. The protruding rib 136 of the spindle is formed to push down the stopping protrusion 138, The jaw 138 is formed so that the striking bar 139 formed on the other side strikes the outer circumferential surface of the screen 120 while rotating with respect to the hinge body 137.

At this time, it is preferable that the impact rod 139 is formed with a cushioning member 139-1 made of rubber or urethane at the free end portion toward the screen 120 to prevent the screen 120 from being damaged or damaged .

The partition wall 300 is formed with a through hole 320 for bypass at an upper end located above the height of the screen 120 so that the through hole 320 flows from the inlet pipe to the filtration chamber As shown in FIG.

In this case, the non-powered vibrator 130 may be a coil-wound type tension member 131 formed below the mesh network 122 of the screen to form a supporting jaw.

That is, the tension member is engaged with the slider, and the slider is elastically generated in accordance with the flow velocity with reference to the upper fixed end of the screen (or the partition wall) while being transferred back and forth along the slider rail formed on the bottom surface of the settling tank, So that the mesh network can be shaken back and forth.

This flow action promotes the drop of adsorbed dirt along with the waves in the storm.

At this time, the tension member, the slider, the slider rail, and the fixed end may be reversed so that the upper portion of the tension member, the slider rail, and the fixed end may be stretched back and forth with reference to the lower side.

In addition, a plurality of cleaning balls 132 are disposed on the inner circumference of the mesh network 122, which is the tunnel-shaped space portion, and branched springs 133 are branched for each cleaning ball, As shown in FIG.

That is, the cleaning ball is formed such that the coil spring 133 is expanded and contracted according to the flow rate of the rainwater, and the mesh net 122 is shaken or struck to remove and remove surface contaminants by flow and impact phenomena.

A filter bed 210 is formed at one side of the filtration tank 200 to perform filtration of stormwater introduced through the lower gas passage 310 of the partition wall. The filter bed 210 has numerous pores and elasticity (Polyethylene-based or polyurethane-based fiber filter).

On the upper and lower surfaces of the filter bed 210, support tucks 220 are formed. On the upper or lower surface of the filter bed, a compression type dehydrator 230 is formed, Is formed to clean the filter bed (210) in a squeezing manner.

At this time, the compression-type dehydrator 230 is formed such that a check grill 231 is formed on the upper surface and the lower surface of the filter bed 210, a rack gear 232 is formed at one side of the grill, The gear 232 is formed so as to correspond to the drive pinion 234 of the servo motor 233 built in the waterproof housing so that the upper and lower grilles 231 are operated independently or interlockingly with the selected control when the servo motor 233 is operated, 0.0 > 210 < / RTI >

That is, the squeezing type dehydrator strongly presses the upper and lower surfaces of the filter bed and presses the squeeze-type dehydrator so that the filter bed can be removed even when it is stuck in the filter layer as compared with the conventional simple water pressure jet type cleaning device.

Thus, the squeezing-type dehydrator senses the obstacles contained in the storm drainage water by the filter bed net, and when the flow rate is slowed, senses it by the flow rate sensor and sends a signal to the facility control unit or the external center to recognize the cleaning period .

This is to control the flood flow by checking the flow rate when the flow rate of the instantaneous inflow due to the localized heavy rain such as the rainy season is soaring.

In addition, it is preferable that the non-powered vibrator of the settling tank simultaneously spray high-pressure air and high-pressure washing water on the screen during operation to further improve the washing performance.

In addition, it is preferable that the pressure-type dehydrator of the filtration tank simultaneously injects the high-pressure air and the high-pressure washing water during operation so that the washing performance of the filter bed is further improved.

At this time, it is preferable that the supply of the high-pressure washing water is formed by either one of supplying the high-pressure washing water through the discharged piping or supplying the high-pressure washing water with the separate washing water line.

In the meantime, the present invention may further include a turbulent induction high-pressure air injection device 260 on the upper side of the filter bed, which is formed in the backwashing operation.

That is, in the backwashing process, the stagnant water in the settling tank and the filtration tank is drained (drained through the sewage pipe) after a predetermined (specified time) after the end of the rainfall, and then the blower is connected to the high- To induce turbulence.

This turbulent induction maximizes the collision between the cleaning balls in the filter bed and the floating filter media, thereby inducing the grinding time to be shaken. Then, the compression type dehydrator is formed to perform backwashing in parallel with the pressing and water supply. At this time, it is preferable to use filtered water as the water to be washed.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... sedimentation tank 110 ... intake pipe
120 ... screen 121 ... support plate
122 ... mesh network 130 ... non-powered vibrator
131 ... tension member 132 ... cleaning ball
133 ... coil spring 200 ... filtration tank
210 ... filter bed 220 ... support jaw
230 ... Compression type dehydrator 231 ... Grill
232 ... Rack gear 233 ... Servo motor
234 ... drive pinion 300 ... partition wall
310 ... via route

Claims (5)

A non-point pollution purification apparatus comprising a sedimentation tank (100) and a filtration tank (200) by barrier ribs (300)
The settling tank 100 is formed with a shield screen 120 to remove fine contaminants and primary contaminants from the rainwater flowing through the inlet pipe 110. The screen 120 is used as a reference A mesh net 122 having a curved surface toward the inlet pipe 110 is provided to form a tunnel-shaped space from the partition wall. The screen 120 is formed on the surface with a flow rate-proportional ball impact impulse vibrator 130 Is formed to prevent clogging of the mesh net 122 during filtering,
The filtration tank 200 is formed with a filter bed 210 on one side thereof for performing filtration of stormwater introduced through the lower gas passage 310 of the partition wall. The filter bed 210 is provided with numerous pores and elasticity A support tuck 220 is formed on the upper and lower sides of the filter bed 210 and a compression type dehydrator 230 is formed on the upper or lower surface of the filter bed 210 Wherein the filter bed (210) is wiped by cleaning one or both of the supporting jaws (220) with a screen having a self-cleaning function. 2. The apparatus of claim 1, wherein the non-powered vibrator (130)
The rotating body having the plurality of blades 135 is rotated with respect to the shaft shaft 134. The rotating body provided with the blades 135 is rotated by the swash plate 139 And a plurality of projecting ribs 136 are formed at both ends of the shaft shaft 134 in the longitudinal direction of the shaft 134. The projecting rib 136 of the spinning wheel rotates in a direction And the latching jaw 138 rotates with respect to the hinge body 137 and strikes the outer circumferential surface of the screen 120 with the striking rod 139 formed on the other side of the latching jaw 138 And a screen having a self-cleaning function. 3. The apparatus according to claim 1 or 2, wherein the squeezing-type dehydrator (230)
A rack gear 232 is formed on one side of the grill and the rack gear 232 is coupled to a servo motor 232 built in the waterproof box, The lower surface grill 231 is independently or interlocked with the selected control when the servomotor 233 is operated so as to correspond to the driving pinion 234 of the motor 233 and perform the thickness surface compression of the filter bed 210 And a screen having a self-cleaning function. The vibration-free vibrator according to claim 3, wherein the non-powered vibrator (130) comprises a coil-wound type tension member (131) formed under the mesh network (122) And the slider is formed such that elasticity is generated in accordance with a flow velocity with reference to an upper fixed end of the screen while being transported back and forth along a slider rail formed on the bottom of the settling tank, And a screen having a self-cleaning function. The non-powered vibrator (130) according to claim 4, wherein the plurality of cleaning balls (132) are arranged on the inner circumference of the mesh net (122) The branched spring 133 is branched and connected to the mesh net 122. When the washing ball flows according to the flow rate of the net, the coil spring 133 is expanded and contracted to shake or strike the mesh net 122, And the surface contaminants are removed and removed by the impact phenomenon.

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