KR101747916B1 - A Sewage and Rainwater Purification System Using Filter Screen Device - Google Patents

Abstract

More particularly, the present invention relates to a filtration screen apparatus in which a filter screen apparatus capable of filtration of fine foreign substances is installed so as to rotate in a vertical direction, So that it is possible to efficiently remove minute foreign substances from the bottom / bottom of the filter screen apparatus.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter screen device,

More particularly, the present invention relates to a filtration screen apparatus in which a filter screen apparatus capable of filtration of fine foreign substances is installed so as to rotate in a vertical direction, So that it is possible to efficiently remove minute foreign substances from the bottom / bottom of the filter screen apparatus.

A screen in which vertical members are arranged at regular intervals is formed in a treatment facility where ozone, wastewater and bottom / bottom are introduced and purified, so that contaminants and other foreign substances are filtered by the screen.

At this time, passing the screen without passing the microscopic contaminants causes a problem in the water treatment facility in the downstream, which causes failure and affects water quality of the treated water, which causes the treatment efficiency to be inferior. These factors make operation very difficult and increase the maintenance cost.

In the conventional screen, it is necessary to install a vertical member at a predetermined interval so as to allow the contaminants to pass through, and the rake is raised between the vertical members so that the screen So as to relieve the contamination.

Therefore, the conventional screen can not filter the fine particles, and even if the distance between the vertical members is as small as possible, there is a limit in filtering the fine particles.

As a result, fine contaminants contained in the lower and upper portions pass through the screen as they are, and troubles occur in the water treatment system due to microscopic contaminants, which causes a facility failure and lowers the treatment efficiency. And there is a problem that the operation cost is excessively consumed.

In addition, when a single screen is installed, the processing speed of the raw water is very slow, the amount of raw water to be processed by one screen is increased, excessive load is applied to the screen, and frequent replacement of the screen is required.

(Patent Literature)

Korean Registered Patent No. 10-1124678 (Registered on Feb. 29, 2012) "Electric rotary damper"

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

An object of the present invention is to provide a high-quality clean-up system using a filter screen device capable of efficiently removing fine foreign substances contained in a lower / upper storm.

An object of the present invention is to provide a high-quality and high-quality purification system using a filter screen device which is capable of stagnating raw water and preventing foreign substances such as impurities from being settled on the floor and being uniformly supplied to the entire inflow water.

An object of the present invention is to provide a high-quality purification system using a filter screen device which ensures filtration time and filtration area of foreign substances contained in raw water to increase filtration efficiency and enable efficient use of a filter screen device.

It is an object of the present invention to provide a superior and superior purification system using a filter screen device that prevents foreign matter from accumulating on the floor to block the flow of raw water, narrow the filtration area, and prevent the filter screen device from being damaged.

An object of the present invention is to provide a lower / superior purification system using a filter screen device which can reduce the power consumed by the floating parts and simplify the structure of the device.

An object of the present invention is to provide a high and low purification system using a filter screen device that lowers the water content of foreign matter discharged through a foreign matter discharging unit and smoothly drains the filter net.

It is an object of the present invention to provide a high / low purification system using a filter screen device which improves filtration efficiency of a filter screen device and enables efficient lifting by a filter net.

In order to achieve the above object, the present invention is implemented by the following embodiments.

According to an embodiment of the present invention, the upper / lower purification system using the filter screen apparatus according to the present invention has a pretreatment space in which raw water such as lower and superior flows in and forms flocs by swirling flow, A cleaning water tank for forming a predetermined space to be purified by the filtration by the filtration; A filter screen device connected to a plurality of the purifying water tanks and configured to filter and discharge fine foreign substances from the water introduced into the purifying water tank; And a float formed on the floor at the front side of the filter screen device for floatation of foreign matter sedimented on the floor and being lifted up by the filter net, wherein the purifying water tank includes an inflow portion into which raw water flows, A pretreatment tank for allowing water to pass therethrough to form flocs by the collision between the foreign particles and an influent passage for forming a channel through which the raw water passing through the pretreatment tank flows into the filter screen device, Wherein the filter screen unit is formed on the front side of the filter screen unit and is formed to connect the filter screen units along the inflow channel and becomes narrower as the inflow part moves away from the inflow unit, and; A filter network driving unit for rotating the filter network vertically so as to lift foreign matter caught in the filter network upward; A foreign matter dewatering unit for temporarily separating the foreign matter caught in the filter net from the filter net to effect dewatering; A foreign matter removing unit for separating and removing the foreign substances lifted upward from the filter net through the filter net; And a foreign matter discharging unit for discharging the foreign matter separated from the filter net by the foreign matter removing unit to the outside.

According to another embodiment of the present invention, in the lower and upper purification system using the filter screen apparatus according to the present invention, the pretreatment tank is formed in a cylindrical shape, and water flowing through the inlet portion flows through the lower inlet formed through one side of the lower end, A primary floc forming tank rising upward; An upper side inflow port is formed at an upper end of the upper side so as to communicate with the primary flock forming tank so that water having passed through the primary flock forming tank flows into the lower side of the primary flock forming tank, Wherein the lower inlet is formed in a spiral shape and the raw water is formed obliquely so as to have an incident angle in the upper direction, the upper inlet is formed in a spiral shape, and the raw water is formed in a downward direction And is formed to be inclined to have an incident angle and to have a cross sectional area smaller than that of the lower inlet so as to increase the flow rate of water passing through the primary flock forming tank.

According to another embodiment of the present invention, in the lower / upper purification system using the filter screen device according to the present invention, the inflow channel may include a filter screen having a width near the front side of the filter screen device, The purifying water tank is formed to be narrower than the width of the front side of the apparatus so as to have the same flow rate as the inlet flow rate, and the purifying water tank includes a water purifier formed at the rear side of the filter net to have a predetermined height from the bottom, So that the raw water can be maintained at a water level equal to the height of the moon tail.

According to another embodiment of the present invention, in the high and low purification system using the filter screen apparatus according to the present invention, the float lifting unit includes an impeller formed on the bottom of the front side of the filter net and rotating in the vertical direction; An impeller rotating shaft formed at the center of the impeller and serving as a center of rotation of the impeller; And an impeller driving unit connected to the impeller rotating shaft to provide a driving force.

According to another embodiment of the present invention, in the lower / upper purification system using the filter screen apparatus according to the present invention, the filter network driving unit includes a drum unit for supporting the filter network and rotating the filter network along a predetermined path, The drum unit includes a driving drum formed at an upper end of the filtering net and connected to a filtering net driving motor; And a return drum formed at a lower end of the filter net to support the filter net and allow the filter net to rotate in an infinite orbit around the filter net. The impeller driving unit connects the return drum and the impeller rotation shaft, And the impeller is rotated.

According to still another embodiment of the present invention, in the high and low purification system using the filter screen apparatus according to the present invention, the foreign matter dewatering unit includes a foreign matter dewatering separation plate for adhering to the filter net to separate foreign matter, And a fixing part for fixing the plate to the main body frame.

According to another embodiment of the present invention, in the high and low purification system using the filter screen apparatus according to the present invention, the foreign matter dewatering separation plate is formed on the front side of the foreign matter dewatering separation plate and is adhered to the filter net, And a rear inclined portion formed to have a slope rising by 5 ° to 10 ° from the front end of the filter net adhering portion toward the rear side and a rear side impregnation portion formed to be embedded in a " .

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention provides an effect of efficiently removing fine foreign substances from the bottom / outer side by providing a plurality of filter screen apparatuses installed to rotate the filtration net capable of filtration of fine foreign substances in a vertical direction so as to be connected to a purified water tank have.

In the present invention, a plurality of filter screen devices are formed to be connected to the left and right along the inflow path, and as the inflow water is farther from the inflow portion into which the raw water such as bottom / bottom flows into the cleaning water tank, So that the foreign matter such as impurities is prevented from being settled on the floor due to the stagnation of the raw water, and the inflow water flows into the inflow water screen It is possible to uniformly supply the liquid to the whole area.

The present invention forms a wall lag having a certain height to the rear side of the filter screen apparatus of the filter screen apparatus and enables the raw water passing through the filter net to maintain the water level equal to the height of the lagoon wall so as to secure the filtration time and filtration area of the foreign substances contained in the raw water Thereby improving the filtration efficiency and enabling efficient use of the filter screen device.

The present invention relates to a filter screen device which includes a float lifting portion formed at the bottom of a front side of a filter screen device and rotates to a filter net side so as to float foreign objects settled on the floor of inflow water to lift the filter net, Thereby making it possible to prevent the filter screen device from being damaged.

The present invention has the effect of reducing the power consumed and simplifying the configuration of the apparatus by allowing the impeller of the lifting portion to rotate by receiving the driving force by the filter net driving motor that rotates the filter net of the filter screen apparatus.

According to the present invention, there is provided a foreign matter dewatering unit for temporarily separating a foreign matter adhering to a filter net from a filter net, thereby separating and discharging water from the foreign matter, thereby lowering the water content of the foreign matter and draining the filter net smoothly.

The present invention includes a pretreatment tank for introducing water passing through an inflow portion to form flocs by collision between foreign particles, wherein the pretreatment tank includes a primary flocculation tank for increasing the flow rate of water passing through the inflow portion, Forming a second flocking tank that is configured to have a first flocking tank and a second flocking tank to reduce the velocity of water as the water passing through the primary flocking tank descends to increase the rate of impact between the foreign materials at an increased flow rate by the primary flocking tank, In the second flocking tank, the flow velocity of the water is reduced to sufficiently ensure the floc forming time of the foreign substance. Thus, the floc can be efficiently formed by the pretreatment tank, the filtration efficiency of the filter screen apparatus can be enhanced, So that an efficient lifting by the filter net is possible.

1 is a perspective view of a lower / superior purification system using a filter screen device according to an embodiment of the present invention;
Fig. 2 is a plan view of Fig. 1
3 is an enlarged view of the lifting portion
4 is a sectional view for explaining the impeller driving unit
5 is a cross-sectional view for explaining another embodiment of the impeller driving unit
Figure 6 is a perspective view of the filter screen apparatus of Figure 1;
Fig. 7 is a rear partial perspective view of Fig.
8 is an enlarged view for explaining the filter network driving unit
9 is a perspective view of the drum portion
Fig. 10 is an enlarged view showing the upper part of Fig. 6
11 is a cross-sectional view showing an installation state of the debris separation plate
12 is a view for explaining the principle of operation of the dehydration separator for debris.
13 is a reference view for explaining a tension holding portion
14 is a cutaway perspective view for explaining a foreign substance removing unit
Fig. 15 is a perspective view of the air knife shown in Fig. 14
Fig. 16 is a perspective view of the oil separator of Fig.
FIG. 17 is a cross-sectional view of FIG. 6
18 is a perspective view of a lower / superior purification system using a filter screen apparatus according to another embodiment of the present invention
19 is a perspective view of the pretreatment tank of Fig. 18
Fig. 20 is a reference diagram showing the flow of water in the pretreatment bath of Fig. 19

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Throughout the specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise.

1 through 17, the lower / superior purification system using the filter screen apparatus according to an embodiment of the present invention will be described. In the lower / superior purification system, (1) which forms a washing water tank (1); (2) floating on the floor so as to be lifted up by the filter net (31); And a filter screen device 3 formed in the purifying water tank 1 so as to be connected to the right and left sides to filter out and discharge fine foreign substances from the water introduced into the water purification tank 1.

The upper and lower purification systems according to the present invention utilize a filter screen device 3 that rotates the filter net 31 capable of filtering micro-contaminants up and down so that fine foreign substances trapped in the filter net 31 can be discharged to the outside 1, a plurality of filter screen devices 3 are installed in the cleaning water tank 1 to enable quick and efficient processing of fine foreign substances.

For reference, for convenience of explanation, the A-B direction is referred to as a vertical direction, the C-D direction as a left-right direction, and the E-F direction as a forward-backward direction as shown in FIG.

A plurality of filter screen devices 3 are connected to the purifying water tank 1, and a plurality of filter screen devices 3 are connected to the purifying water tank 1, So that only the raw water from which minute foreign substances are removed passes through the filter net 31. The purifying water tank 1 may be formed symmetrically with both sides facing each other as shown in FIG. 1, thereby increasing the processing flow rate of the raw water. Since the opposing cleaning water tank 1 has the same configuration, only one purification water tank 1 will be described below. The purifying water tank 1 includes an inlet 12 through which raw water flows and an inlet water passage 11 through which the raw water introduced through the inlet 12 forms a channel into the filter screen device 3, And a wall reed 13 which is formed to have a predetermined height from the bottom toward the rear side of the filter net 31.

The inflow passageway 11 is configured to form a water channel so that raw water such as low or excellent water introduced into the purified water tank 1 through the inflow portion 12 can be introduced into each of the plurality of filter screen devices 3 , So that the raw water can flow evenly through the filter net 31 of each filter screen device 3 connected along the left and right direction. 2, the inflow passages 11 are formed in the front spaces 11a, 11b, and 11b of the respective filter screen devices 3 as they are away from the inflow portions 12 formed at one side of the inflow passages 11, 11c are narrowed. When a plurality of filter screen devices 3 are installed along the inflow channel 11, the flow rate of the raw water is reduced as the distance from the inflow section 12 is increased. As the distance from the inflow section 12 increases, The filter screen device 3 farther from the inlet 12 is formed to have a narrower space on the front inflow passageway 11 of the filter screen apparatus 3 to increase the flow rate of the front inflow passageway 11. This allows the flow rates of the front inflow passages 11 of the filter screen apparatus 3 to be equal to each other so that the raw water is stagnated due to the slow flow velocity even in the filter screen apparatus 3 farther from the inflow section 12, So that foreign matter of the filter can be filtered by the filter net 31 without being settled on the floor. Therefore, it is possible to efficiently and rapidly filter foreign matters through the plurality of filter nets 31, and the filter nets 31 can be used evenly, thereby increasing the usability of the filter nets 31. In addition, foreign substances such as impurities are settled on the floor, which reduces the removal efficiency of the foreign substances and prevents the problem of disturbing the flow of raw water by accumulating on the floor.

The inflow part 12 is formed to flow raw water such as bottom or excellent water into the cleaning water tank 1. The inflow part 12 is formed so as to pass through one side of the water purification tank 1 and is formed of a screen having a predetermined interval, So that the contaminants can be filtered. It is preferable that the inflow part 12 is formed to be spaced apart from the bottom by a predetermined height. The foreign matter contained in the raw water can be reduced to the bottom, and the inflow part 12 can be introduced into the filtering net 31, .

The wall lug 13 is formed to have a predetermined height from the bottom on the rear side of the filter screen device 3 installed in the purifying water tank 1, more precisely on the rear side of the filter net 31. Accordingly, the water level in the purifying water tank 1 can be maintained at a water level corresponding to the height of the month lobe 13, thereby increasing the contact area between the raw water and the filtering net 31, ) To be used efficiently.

The floating part 2 is formed at the front bottom of the filter screen device 3 and rotates to float the bottom of the purification water tank 1 or more precisely the bottom of the inflow water path 11, (31), so that it can be lifted by the filter net (31). The upper and lower purification systems according to the present invention are capable of efficiently and rapidly processing foreign matter by connecting a plurality of filter screen devices 3 and are capable of controlling the shape of the inflow path 11, the position of the inflow part 12, The foreign matter can be settled to the bottom of the inflow water path 11 according to the inflow flow rate of the raw water and the weight of the foreign matter. When the foreign matter is accumulated on the floor, The filtration area of the filter net 31 is reduced and the filter screen device 3 is damaged. Therefore, in the present invention, the floatation-like portion 2 which rotates to the filter net 31 side is formed at the front bottom of the filter net 31, so that the foreign substances precipitated on the bottom of the inflow channel 11 float up and move toward the filter net 31 So that it can be lifted by the filter net 31 and discharged to the outside. For this purpose, the floating part (2) comprises an impeller (21) formed on the front bottom of the filtering net (31) and rotating in the vertical direction; An impeller rotation shaft 22 formed at the center of the impeller 21 and serving as a center of rotation of the impeller 21; An impeller driving unit 23 connected to the impeller rotating shaft 22 to provide a driving force; And an impeller receiving plate (24) formed below the impeller (21) to receive the impeller (21).

The impeller 21 may be formed as a flat plate protruding at a predetermined interval along the periphery of the impeller rotation shaft 22 and may be lifted up by the filter net 31 . Accordingly, the impeller 21 rotates in a direction as shown in FIG. 3 in accordance with the rotation of the impeller rotation shaft 22, so that foreign substances precipitated on the bottom float upwards. The lower portion of the impeller 21 is formed to be received in the impeller receiving plate 24 so that the foreign matter can be lifted and lifted efficiently.

The impeller 21 is protruded along the periphery of the impeller rotation shaft 22 and is configured to be a rotation center of the impeller 21. The impeller 21 receives the driving force by the impeller driving unit 23 and rotates in a direction.

The impeller driving unit 23 is configured to provide a driving force for rotating the impeller rotation shaft 22. As shown in FIG. 4, a separate impeller driving motor 231 is provided outside the purifying water tank 1 The impeller driving motor 231 and the impeller rotating shaft 22 are connected to each other by a driving chain 232 so that the driving force generated by the impeller driving motor 231 is transmitted to the impeller rotating shaft 22 to rotate.

The impeller driving unit 23 may be connected to the filter screen apparatus 3 as shown in FIG. 5 without providing a separate impeller driving motor 231, It is possible to receive driving force from the filter network driving unit 32 to be driven. More specifically, the filter network driving unit 32 rotates the driving drum 321a formed at the upper end of the filtering net 31 by the filter net driving motor 324, and the return drum 321b is provided at the lower end of the filtering net 31, The return drum 321b also rotates together with the operation of the filter net drive motor 324 as the filter net 31 is supported. Therefore, the impeller rotation axis 22 of the floating portion 2 formed adjacent to the front side of the return drum 321b is connected by another drive chain 232 ', so that the rotation of the return drum 321b, So that the rotating shaft 22 can rotate. Therefore, the impeller 21 of the floating part 2 receives the driving force from the filtering net driving part 32 of the filter screen device 3 without rotating the filter screen device 3, thereby reducing power consumption , Which simplifies the configuration of the device and saves the cost of installation and operation.

The impeller accommodation plate 24 is formed so as to surround the lower side of the impeller 21 and is formed to be in close contact with the filter screen device 3 so that the foreign matter does not sink to the bottom according to the rotation of the impeller 21, 31) so that the lifting and lifting of foreign matter can be efficiently performed.

The filter screen device 3 is configured to filter the foreign substances from the raw water or the like that has flowed through the inflow section 12 of the purifying water tank 1 and to discharge the foreign substances to the outside, A plurality of units are connected to enable efficient processing of foreign matter. Particularly, the filter screen device 3 filters foreign matter by using the filter net 31 so that even minute foreign matter can be filtered, and the filter net 31 itself is rotated so that the foreign matter caught in the filter net 31 is lifted and discharged . The filter screen device (3) includes a filtering net (31) installed in the cleaning water tank (1) to filter out fine foreign matter; A filtering network driving unit 32 for rotating the filtering net 31 in the up and down direction so as to lift the foreign matter caught in the filtering net 31 upward; A foreign matter dewatering section (33) for temporarily separating the foreign matter caught in the filter net (31) from the filter net (31) to effect dewatering; A tension holding portion (34) for holding the filter net (31) in a tight state; A foreign matter removing unit 35 for separating the foreign substances lifted upward from the filtering net 31 from the filtering net 31; A foreign matter discharging unit 36 for discharging the foreign matter separated from the filtering net 31 by the foreign matter removing unit 35 to the outside; A collecting plate (37) for collecting the water passing through the filter net (31) to the lower side; And a body frame 38 formed on both sides of the filter net 31 to form an outer shape of the filter screen apparatus 3. [

The filter net 31 may be formed of fibers forming fine pores, a mesh net of various materials, or the like, which is configured to filter fine foreign matter from raw water, Can be formed of various materials that can pass through and can filter out fine particles, and can be formed variously according to the size of particles to be filtered. As shown in FIG. 6, the filter net 31 may be formed in a vertical direction, and may be inclined rearward at a predetermined angle to smoothly lift the foreign matter caught in the filter net 31. The filter net 31 is subjected to endless track rotation in the vertical direction by the filter net driving unit 32 and supported by a drum unit 321 to be described later so as to rotate along a predetermined path. At this time, as shown in FIG. 6, the filter net 31 rotates in a direction rising from the front side of the filter net 31, so that the foreign matter caught in the filter net 31 can be lifted upwards.

The filter bank 31 is wound on a driving drum 321a to be described later at the upper end thereof and is wound around a return drum 321b to be described later at a lower end thereof and between the driving drum 321a and the return drum 321b, And is driven to rotate together with the driving drum 321a as it is rotated by the filter net driving motor 324. [ Accordingly, the filtering net 31 can continue to rotate in the vertical direction while being stably supported, and the angle of inclination of the filtering net 31 can be changed at a position supported by the guide drum 321c.

 The filter net 31 is supported by the drive belt 322 and the cover belt 323 of the filter net drive 32 at both ends of the filter net drive unit 32 and rotated so that the filter net 31 is maintained in a taut state So that filtration and lifting of the foreign matter can be smoothly performed. The foreign matter caught in the filter net 31 is separated from the filter net 31 by the foreign matter removing unit 35 and is discharged to the outside by the foreign matter discharging unit 36. In addition, the filter net 31 includes a bent portion 311 formed to be embedded at a certain depth, so that foreign matter can be lifted efficiently.

The bent portion 311 is formed to be embedded at a predetermined depth on the surface of the filter net 31 and is formed to extend across both left and right ends of the filter net 31. The curved portions 311 are spaced apart from each other by a predetermined distance in the vertical direction of the filtering net 31 and are formed over the entire filtering net 31. Therefore, the bent portion 311 can prevent foreign matter from slipping by supporting the foreign matter caught in the filter net 31, smoothly lifting the foreign matter, increase the filtration area of the filter net 31, The efficiency can be improved.

The filter network driving unit 32 is configured to transmit a driving force to the filter network 31 and rotate the filter network vertically. The filter network 31, which is formed in the form of a fiber or mesh network, . To this end, the filter network driving unit 32 includes a drum unit 321 for supporting the filter network 31 and rotating the filter network 31 along a predetermined path; A driving belt 322 which is fastened to the drum portion 321 and rotates together with the rotation of the drum portion 321 and closely contacts the filtering net 31 to transmit the driving force of the drum portion 321 to the filtering net 31, ; A lid belt 323 formed to face the drive belt 322 with the filter net 31 interposed therebetween so as to cover the filter net 31; And a filter net drive motor 324 for rotating the drum portion 321.

The drum portion 321 supports the filter net 31 and rotates in a vertical direction along a predetermined path. In order to smoothly rotate the filter net 31 and smoothly drain the water passing through the filter net 31, A separate driving belt and a cover belt 323 are wound around the filter bank 31 to support the filter bank 31. Accordingly, the drum unit 321 includes a driving drum 321a formed at the upper end of the filtering net 31 and connected to the filtering net driving motor 324; A return drum 321b formed at the lower end of the filter net 31 to support the filter net 31 and to allow the filter net 31 to rotate in an infinite orbit in a vertical direction; And a guide drum 321c formed between the driving drum 321a and the return drum 321b to support the filtering net 31. [

The driving drum 321a is formed at the upper end of the filtering net 31 and is wound around the filtering net 31. The driving drum 321a includes a recessed portion formed to be engaged with the bent portion 311 of the filtering net 31 And a gear portion 321a-1 formed at a predetermined depth along the circumference as shown in Fig. 9 is formed at both ends of the gear portion 321a-1. The driving drum 321a is connected to the filtering net driving motor 324 and receives the driving force from the filtering net driving motor 324 and rotates so that the filtering net 31 can be rotated.

The recess 321a-1 is formed so as to correspond to the bent portion 311 of the filter net 31 and is formed in the left and right direction. The recess 321a-1 is spaced apart along the circumference of the filter net 31, .

The gear portion 321a-2 is formed at a predetermined depth along the circumference of both ends of the driving drum 321a, and the driving belt 322 is inserted and fastened. The gear portion 321a-1 transmits the rotational force to the driving belt 322 by engaging with the driving belt 322 and inserts the driving belt 322 into the gear portion 321a-1, 31 can be brought into close contact with the driving belt 322 and the driving drum 321a. Accordingly, the filter net 31 can be rotated while being in tight contact with the driving belt 322 and the driving drum 321a, and the driving force of the filter net driving motor 324 can be transmitted to the filter net 31 without loss .

The return drum 321b is formed at the lower end of the filter net 31 to wind the filter net 31. The filter net 31 is wound around the drive drum 321a and the return drum 321b, Thereby making it possible to rotate the motor 31 in the up-and-down direction in an endless track. Like the driving drum 321a, the return drum 321b includes a recessed portion 321b-1 and a gear portion 321b-2. The return drum 321b includes a recess portion 321b-1 and a gear portion 321b- The description related to the engaging portion 321a-1 and the gear portion 321a-2 of the driving drum 321a is omitted here. As described above, the return drum 321b may be connected to the impeller rotation shaft 22 of the floating portion 2, and the impeller 21 may rotate together with the rotation of the return drum 321b can do.

The guide drum 321c is formed between the driving drum 321a and the return drum 321b and supports the filter net 31. The guide drum 321c preferably supports the filter net 31 rotating on the front side. Therefore, the filter net 31 can be stably supported to continue the rotation in the up-and-down direction, and the inclination angle of the filter net 31 can be adjusted according to the position of the guide drum 321c. A plurality of guide drums 321c may be formed. For example, only one guide drum 321c may be formed as shown in FIG. 6, and a plurality of guide drums 321c may be formed on the filter drum 311 between the guide drum 321c and the drive drum 321a. It is possible to form the inclined angle lower than that between the guide drum 321c and the return drum 321b to smoothly separate the foreign matters from the filter net 31. [ Like the driving drum 321a and the return drum 321b, the guide drum 321c includes a recessed portion 321c-1 and a gear portion 321c-2. Is the same as the description of the recessed portion 321a-1 and the gear portion 321a-2, and the description thereof will be omitted.

The driving belt 322 is fastened to the drum 321 and rotates in the vertical direction. The filter net 31 is closely attached to the upper side of the driving belt 322 and rotates together with the rotation of the driving belt 322. The drive belt 322 is wound on a driving drum 321a and a return drum 321b of the drum portion 321 and is supported by a guide drum 321c and gear portions 321a-2 321 b-2,321c-2. The driving belt 322 is formed so as to correspond to the curved portion 311 of the filtering net 31 so that the filtering net 31 can be rotated together.

The lid belt 323 is formed to cover the filter net 31 from above the filter net 31 which is in close contact with the drive belt 322. Like the drive belt 322, the lid belt 323 includes the bent portion 311 of the filter net 31, So as to rotate together. Therefore, the filter net 31 is supported by the drive belt 322 and the cover belt 323 to maintain the tension state and to continue to rotate in the up and down direction, and the pressing portion 341 (described later) of the tension holding portion 34 So that the taut state can be maintained more stably.

The filter network driving motor 324 is connected to the driving drum 321a to provide a driving force and rotates the driving drum 321a to rotate the filtering net 31 in the up and down direction. The filter net driving motor 324 also provides a driving force to the rotation of the impeller 21 when the return drum 321c and the impeller rotating shaft 22 are connected by the driving chain 232 '.

10, the foreign matter dewatering unit 33 may be formed to be supported on the upper side of the main body frame 38. The foreign matter dewatering unit 33 may be temporarily attached to the filter net 31 and separated from the filter net 31 So that water is discharged from the foreign matter, thereby lowering the water content of the foreign matter and making the drainage smooth. When the foreign matter is attached to the filter net 31, water can not pass through the foreign matter adhered portion, and the foreign matter is lifted in a state of being watered to have a high water content. In addition, foreign matters attached to the filter net 31 are clogged and water can not be drained smoothly through the filter net 31. Accordingly, the foreign matter dewatering unit 33 temporarily separates the foreign matter adhered to the filter net 31 from the filter net 31 and discharges the water into the separated space, thereby lowering the moisture content of the foreign matter and helping drainage . The foreign matter dewatering unit 33 is provided with a foreign matter dewatering separation plate 331 which is in close contact with the filtering net 31 and separates foreign matter and a foreign matter dewatering separation plate 331 is fixed to the main body frame 38 (332).

The foreign matter dewatering separation plate 331 is closely attached to the filter net 31 and is temporarily separated from the filter net 31. The foreign matter dewatering separation plate 331 is formed along the left and right direction of the filter net 31, . 11, the foreign matter dewatering separation plate 331 is formed on the front side of the foreign matter dewatering separation plate 331 and has a filter net adhering portion 331a which is in close contact with the filter net 31, A front inclined portion 331b formed so as to have a slope rising from the front end to the rear side of the foreign matter dewatering plate 331 and a rear side inclined portion 331c formed to be embedded at the rear lower end of the foreign matter dewatering separation plate 331.

The filter net adhering portion 331a is formed to form the front bottom of the foreign matter dewatering separation plate 331 and is formed in close contact with the filter net 31 so that the foreign matter adhered to the filter net 31 can not pass therethrough, And is caused to rise along the inclined portion 331b.

The front inclined portion 331b is formed to form a front upper end portion of the foreign matter dewatering separation plate 331 and has a slope rising from the front end to the rear end of the filter net contact portion 331a, Is formed so as to have an inclination rising by 5 DEG to 10 DEG. As a result, the foreign matter attached to the filter net 31 is raised together with the filter net 31. When the filter net 31 is separated from the filter net 31 by the filter net tightening unit 331a, Side slanting portion 331b. In this case, a space blocked by foreign substances is opened in the filter net 31, and water is discharged through a space below the rear side embedded portion 331c.

The rear impregnated portion 331c is formed to form a rear lower end of the foreign matter dewatering separation plate 331 and is formed to be inserted into a certain depth so as to form a certain space between the filter net 31, Are formed to be embedded in a "prep" shape. Therefore, when the foreign matter adhered by the filter net 31 rises along the front inclined portion 331b, the space in which the foreign substance is blocked is opened, and water flows in through the space formed by the rear side embedding portion 331c So that it can pass through the filter net 31.

The fixing portion 332 is configured to connect the foreign matter dewatering separation plate 331 to the main body frame 38. The fixing plate 332a is fixed to the main body frame 38 as shown in FIG. and; And a connection portion 332b connected to the fixing plate 332a to be rotatable and to which the foreign matter dewatering separation plate 331 is fixed.

The fixing plate 332a is fixed to the main body frame 38, and the connection portion 332b is rotatably connected.

The connecting portion 332b is rotatably connected to the fixing plate 332a at one end and the foreign matter dewatering separation plate 331 is installed at the other end along the left and right direction of the filtering net 31 at regular intervals. Therefore, the foreign matter dewatering separation plate 331 can be rotated and detached from the filter net 31 in accordance with the rotation of the connection portion 332b.

The operation of the foreign matter dewatering unit 33 will be described with reference to FIG. 12. As the filter net 31 rises, the foreign matter S attached to the filter net 31 also rises, When it is clogged by the tight contact portion 331a, it rises along the front slope portion 331b. In this case, the space blocked by the foreign substance is opened, and the water W which has not been passed by the foreign substance flows into the space between the rear side depression portion 331c and the filter net 31 and passes through the filter net 31. Accordingly, the foreign matter dewatering unit 33 temporarily separates the foreign matter S attached to the filter net 31 to open the space blocked by the foreign matter S, thereby blocking the foreign matter S, The water W that has not passed through the filter 31 is discharged to the open space between the rear side inlet 331c of the foreign matter dewatering separation plate 331 and the filter net 31 to lower the water content of the foreign matter and smooth the drainage .

The tension maintaining unit 34 is configured to maintain the filtering net 31 in a tense state so as to smoothly filter and lift foreign substances. The filtering net 31 is formed of fibers having fine pores or mesh net If the filter net 31 can not maintain a tight state due to the occurrence of sagging, foreign matter may not be filtered properly and the filter net driving unit 32 may not smoothly rotate the filter net 32, , Damage to the filter net 31 and failure of the device occur. Accordingly, the present invention allows the filtering net 31 to continue to rotate in a taut state through the tension holding portion 34 so that filtration and lifting of foreign matter can be performed smoothly. 13, the tension holding portion 34 includes a pressing portion 341 for pressing the filtering net 31 at both left and right ends of the filtering net 31 and a pressing portion 341 for pressing the filtering net 31 from below the filtering net 31. [ And a support portion 342 for supporting the support portion 31.

The pressing portion 341 is configured to press the filtering net at both ends of the filtering net 31 so that the filtering net 31 is prevented from being squeezed by pressing the filtering net 31 from both sides to maintain a tight state. The pressing portions 341 may be installed at predetermined intervals in the upper and lower directions of the front side of the filtering net 31 so that the pressing net 34 can maintain a tight state throughout the filtering net 31. The pressing portion 341 may include a pressing roller 341a for pressing the filtering net 31 and a frame fixing portion 341b for fixing the pressing roller 341a to the main body frame 38.

The pressing roller 341a is connected to the frame fixing portion 341b so as to press both ends of the filtering net 31 from the upper side to the lower side so that the filtering net 31 can be kept in a tight state without being sagged. The pressing roller 341a may be formed at one side of the cover belt 323 to press the filtering net 31 and may be formed to be rotatable so as to reduce friction with the filtering net 31. [

The frame fixing portion 341b may be formed so as to be bent in a letter shape and one side is fixed to the main body frame 38 and the other side is connected to the pressing roller 341a, And fixed to the frame 38 so that the filter net 31 can be stably pressed.

13, the support portion 342 may be formed in a cylindrical shape and may be formed to be spaced from the filter panel 31 by a predetermined distance, Or may be formed at a plurality of points over the upper and lower portions of the base 31. Therefore, the support portion 342 can support the filtering net 31 and prevent the filtering net 31 from sagging together with the pressing portion 341.

The foreign matter removing unit 35 separates the foreign material lifted upward from the filter net 31 by the filter net 31. The foreign matter separated from the filter net 31 is discharged to the outside . As shown in FIG. 14, the foreign matter removing unit 35 is formed on an upper side of the filtering net 31 wound on the driving drum 321a so that the foreign substances attached to the filtering net 31 are dropped downward. The foreign matter falling downward from the filter net 31 is received in a discharge pipe 362 by a foreign matter guide plate 361 to be described later and discharged to the outside. The foreign matter removing unit 35 includes an air knife 351 for spraying compressed air and an oil removing unit 352 for removing oil to form not only solid foreign substances attached to the filter net 31 but also minute oil fractions All should be removed.

The air knife 351 is configured to spray compressed air to the filter net 31 to separate solid matter from the filter net 31. The compressed air is uniformly sprayed across the filter net 31 in the left and right direction, Compressed air of high pressure is sprayed to increase the removal efficiency of the foreign matter. For this purpose, the air knife 351 is formed to have a predetermined space in the lateral direction of the filter net 31, and has an air inflow portion 351a through which the compressed air flows. And an air spraying part 351b formed so as to protrude from the air inlet part 351a toward the filtering mesh 31 and to spray the compressed air and to have an inner cross sectional area narrower toward the filtering mesh 31 side.

The air inlet 351a may be formed in a cylindrical shape along the left and right direction of the filter net 31, and a space through which compressed air flows may be formed therein. The air inflow part 351a communicates with the air injection part 351b at one side so as to protrude toward the filter net 31 so that compressed air can be uniformly sprayed throughout the filter net 31. [

The air injecting part 351b is formed to protrude toward the filtering net 31 along the left and right direction of the air inflow part 351a and communicates with the air inflow part 351a, Air is sprayed onto the filter net 31. The air injection part 351b has one end communicated with the air inflow part 351a and the other end protruding toward the filter net 31. The air injection part 351b is formed so as to have an internal cross sectional area smaller from the air inflow part 351a toward the filter net 31 So that compressed air having a strong pressure can be injected into the filter net 31.

The oil separator 352 is configured to remove minute oil particles adhered to the filter net 31. The oil separator 352 may spray chemicals such as a chlorine dioxide solution capable of removing grease of the oil component, (31). Therefore, it is possible to remove not only solid foreign substances but also minute oil fractions from the filter net 31, thereby improving the foreign matter removal efficiency of the raw water. The oil removing unit 352 includes a removing unit inlet 352a formed in the left and right direction of the filtering net 31 and through which liquid for removing oil flows, And a jet nozzle 352b formed to be spaced apart from the jetting nozzle 31 to jet the liquid for removing the oil to the filter net 31. [

The removal means inlet portion 352a may be formed in a cylindrical shape along the left and right direction of the filter net 31 so that the removal means for removing oil may be introduced into the removal means inlet portion 352a. The removing means for removing the oil may be a medicine or hot water capable of removing oil, and may form a separate heating chamber when hot water is introduced. The jetting nozzles 352b are formed at regular intervals along the left and right direction in the removing means inlet 352a so as to jet the oil removing means toward the filter net, Can be sprayed.

The injection nozzle 352b is formed to communicate with the removal means inlet 352a at a predetermined interval along the left and right direction and injects the chemical or hot water oil removing means toward the filter network 31. [

7, the foreign matter removing unit 36 receives foreign substances separated from the filtering net 31 by the foreign matter removing unit 35 and is discharged to the outside, and the foreign matter removing unit 35, as shown in FIG. 7, A discharge pipe 362 connected to the outside to receive the foreign substances separated from the filter bank 31 and a discharge pipe 362 connected to the discharge pipe 362, And a conveying screw 363 that is formed in the inside of the discharge pipe 362 and rotates to transfer the foreign substances contained in the discharge pipe 362 to the outside.

The foreign matter induction plate 361 is formed below the air knife 351 and the oil separator 352 and is formed to extend to the discharge pipe 362. The foreign matter induction plate 361 may be a solid foreign matter, So that the discharge tube 362 can be accommodated along the foreign matter guide plate 361.

The discharge pipe 362 is formed on the lower side of the foreign matter removing unit 35 to receive foreign substances and is connected to the outside so that foreign substances can be discharged to the outside and discharged through a separate process.

The transfer screw 363 is formed in the discharge pipe 362 and rotates. The foreign matter contained in the discharge pipe 362 is transferred and discharged to the outside according to the rotation.

14 and 17, the water collecting plate 37 is formed to support the lower side of the rising filter net 31, and the water passing through the filter net 31 is guided downward, and the filter net 31 Is prevented from falling back to the lower filter net 31, thereby lowering the moisture content of the discharged foreign matter, and smoothly discharging the water.

The main body frame 38 is configured to form an outer shape of the filter screen apparatus 3 and is formed to face both sides of the screening net 31. The drum portion 321 and the frame fixing portion 341b, So that it is supported.

18 to 20, the lower / superior purification system using the filter screen according to another embodiment of the present invention will be described with reference to FIGS. Has the same configuration, and additionally includes only the pretreatment tank 14. Therefore, only the contents of the pretreatment tank 14 will be described below.

The pretreatment tank 14 is formed in the inflow channel 11 of the purifying water tank 1 and is configured to allow the water that has passed through the inflow section 12 to flow therein. The pretreatment tank 14 is configured such that the water passing through the inlet 12 flows into the pretreatment tank 14 to swirl inside the pretreatment tank 14 so that the foreign substances collide with each other to form a floc . Floc refers to a lump formed by aggregation of foreign matter. The particle size of the foreign matter is increased so that it is filtered well by the filter net 31, and is efficiently lifted by the filter net 31, . Therefore, the pre-treatment tank 14 can improve the filtering efficiency of the foreign substance through the filter screen device 3. [ To this end, the pretreatment tank 14 includes a primary flocculating tank 141 communicating with the inlet 12 to introduce water, as shown in FIG. 19; Water that has passed through the primary flocculation tank 141 is introduced into the primary flocculation tank 141 and water that has passed through the pretreatment tank 14 and communicated with the inflow water passage 11 flows into the inflow water 11. [ And a second flock forming tank 142 for allowing the second floc forming tank 142 to flow into the flotation furnace 11.

The primary flock forming tank 141 is formed to communicate with the inlet 12 and is formed into a cylindrical shape, and the secondary flock forming tank 142 is formed inside. The lower flask 141a is formed at the lower end of the primary flock forming tank 141 so that the water b passed through the inlet 12 flows into the lower flask 141a as shown in FIG. Water flows upward in the primary floc forming tank 141 and flows into the secondary floc forming tank 142 through an upper inlet 142a communicated with the secondary floc forming tank 142 at the upper end thereof Out. The upper inlet 142a of the secondary floc forming tank 142 is formed to have a cross sectional area smaller than that of the lower inlet 141a so that the flow rate of water passing through the primary floc forming tank 141 is increased, Thereby increasing the frequency of collision of the foreign matter contained in the water. Accordingly, the speed of the water flowing out of the primary floc forming tank 141 to the secondary floc forming tank 142 is higher than that of the foreign material flowing into the primary floc forming tank 141, As a result, flocs are activated to increase the size of the foreign substance, and the foreign substances having an increased size are hooked to the filter net 31 more efficiently and efficiently lifted by the filter net 31, The efficiency can be improved.

The lower inlet 141a is formed at a lower end of the primary flock forming tank 141 so that water having passed through the inlet 12 flows into the primary flock forming tank 141 and is formed into a spiral shape So that swirl flow formation in the primary flock forming tank 141 can be smoothly performed. The lower inlet 141a is inclined upward toward the inside of the primary floe forming tank 141 so that water flowing along the lower inlet 141a can be raised. The raw water introduced through the lower inlet 141a rises and forms a swirling flow along the internal space of the primary floc forming tank 141 and flows through the upper inlet 142a into the secondary floc forming tank 142 ).

The secondary flock forming tank 142 is formed in a cylindrical shape inside the primary flock forming tank 141 and has an upper inlet port 142a communicating with the primary flock forming tank 141 at an upper end thereof , And passes through the primary floc forming tank (141) to allow the increased water to flow. Accordingly, the water flowing into the secondary flocculating tank 142 through the upper inlet 142a increases the frequency of impingement of the foreign material due to the increased speed, so that efficient flocs are formed, and the secondary floc forming tank 142 and descends to the inflow water channel 11 through the bottom thereof. At this time, foreign matter descending in the secondary floc forming tank 142 gradually increases in speed due to gravity. When acceleration due to gravity is added to the speed increasing by the primary floc forming tank 141, So that a sufficient collision of the foreign matter can not be achieved. Accordingly, the secondary flock forming tank 142 is formed to have an increased internal cross-sectional area as it goes downward, so that the flow rate of the water introduced through the upper inlet 142a is reduced, So that sufficient time for collision can be ensured within the flame 142 so that more efficient floc formation can be achieved.

The upper inlet 142a is formed to communicate with the primary flock forming tank 141 on one side of the upper end of the secondary flock forming tank 142, So that it flows into the secondary floc forming tank 142. As described above, the water introduced through the upper inlet 142a flows in an increased state to form an efficient floc. In particular, the upper inlet 142a is formed in a spiral shape, So that the formation of flocs is achieved. In addition, the upper inlet 142a is formed to be upwardly inclined toward the second flocculating tank 142, so that the lowering of the water introduced through the upper inlet 142a can be performed at a higher speed.

Therefore, the pre-treatment tank 14 can effectively form flocs by the primary floc forming tank 141 and the secondary floc forming tank 142 having a unique structure, The particle size is increased and efficient filtering and lifting is performed by the filter net 31 so that the removal efficiency of the foreign substance through the filter screen device 3 can be increased.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as falling within the scope of.

1: Purification tank
11: Inflow channel 12: Inflow section 13:
14: Pretreatment tank
141: Primary floc forming tank 141a: Lower inlet
142: Secondary flock forming tank 142a: Upper inlet
2:
21: impeller 22: impeller rotating shaft 23: impeller driving part
231: Impeller driving motor 232: Driving chain 234: Impeller receiving plate
3: Filter screen device
31: filter net 311:
32: Filter net driving part 321:
321a: driving drum 321b: return drum 321c: guide drum
321a-1, 321b-1, 321c-1: Embedding portions 321a-2, 321b-2, 321c-
322: drive belt 323: lid belt 324: filter net drive motor
33: Foreign matter dewatering unit 331: Foreign matter dehydration separation plate
331a: filter net adhering portion 331b: front inclined portion 331c: rear side inclined portion
332: fixing portion 332a: fixing plate 332b: connection portion
34: tension holding portion 341:
341a: pressing roller 341b: frame fixing portion 342:
35: Foreign body removal
351: Air knife 351a: Air inflow part 351b:
352: Oil removing unit 352a: Removing unit inflow unit 352b: Injection nozzle
36: Foreign matter discharging portion
361: Foreign matter induction plate 362: Discharge tube 363: Feed screw
37: Collection plate 38: Body frame

Claims (7)

A purifying water tank having a pretreatment space into which raw water such as low and excellent water flows and forms a flock by the swirl flow and which forms a certain space to be purified by filtration by the filter screen apparatus;
A filter screen device connected to a plurality of the purifying water tanks and configured to filter and discharge fine foreign substances from the water introduced into the purifying water tank;
And a float formed on the floor at the front side of the filter screen device and rotated to float the foreign object settled on the floor and to be hoisted by the screening network,
Wherein the purifying water tank includes an inlet portion into which raw water flows and a pretreatment tank that forms flocs by collision between foreign particles due to the flow of water passing through the inlet portion and raw water passing through the pre- And an inflow channel forming a channel,
Wherein the inflow channel is formed at a front side of the filter screen device and is formed so that a plurality of the filter screen devices are connected along the inflow channel and the inflow water space becomes narrower as the distance is further away from the inflow port,
The filter screen device comprises:
A filter net to filter out fine foreign matter; A filter network driving unit for rotating the filter network vertically so as to lift foreign matter caught in the filter network upward; A foreign matter dewatering unit for temporarily separating the foreign matter caught in the filter net from the filter net to effect dewatering; A foreign matter removing unit for separating and removing the foreign substances lifted upward from the filter net through the filter net; And a foreign matter discharging unit for discharging the foreign matter separated from the filter net by the foreign matter removing unit to the outside,
The pre-
A primary flocculating tank formed into a cylindrical shape and having a water flowed through the inlet portion and flowing upward through a lower inlet formed at one side of the lower end;
An upper side inflow port is formed at an upper end of the upper side so as to communicate with the primary flock forming tank so that water having passed through the primary flock forming tank flows into the lower side of the primary flock forming tank, A second flocking tank having an increased cross-sectional area,
Wherein the lower inlet is formed in a spiral shape and the raw water is formed to be inclined so as to have an incident angle in an upward direction,
Wherein the upper inlet is formed in a spiral shape and is formed so that raw water has an inclined angle of incidence in the downward direction and has a smaller cross sectional area than the lower inlet to increase the flow rate of water passing through the primary flock forming tank · High quality purification system using filter screen device. delete The apparatus according to claim 1, wherein the inflow channel
The width of the front side of the filter screen apparatus farther from the inflow section is narrower than the width of the front side of the filter screen apparatus which is close to the inflow section,
Wherein the purifying water tank includes a water purifier formed at a rear side of the filter net to have a predetermined height from the bottom so that raw water passing through the filter net can be maintained at a water level equal to the height of the water purifier. · Superior purification system. The apparatus of claim 1, wherein the lift-
An impeller which is formed at the bottom of the front side of the filter net and rotates up and down;
An impeller rotating shaft formed at the center of the impeller and serving as a center of rotation of the impeller;
And an impeller driving unit connected to the impeller rotating shaft to provide a driving force. The apparatus of claim 4, wherein the filter network driver
And a drum unit supporting the filter network and rotating the filter network along a predetermined path,
The drum unit,
A driving drum formed at an upper end of the filtering net and connected to a filtering net driving motor;
And a return drum formed at the lower end of the filter net to support the filter net and allow rotation of the filter net in a vertical direction in an infinite orbit,
Wherein the impeller driving unit connects the return drum and the impeller rotating shaft to receive the driving force of the filtering net driving motor to rotate the impeller. The apparatus according to claim 1, wherein the foreign matter dewatering unit
A foreign matter dewatering separation plate for separating foreign matters from the filter net, and a fixing unit for fixing the foreign matter dewatering separation plate to the main body frame. The method according to claim 6, wherein the foreign substance dehydration separation plate
A filter net tightening portion formed on the front side of the dehydration separating plate for foreign matter and adhered to the filter net,
A front inclined portion formed so as to have an inclination rising by 5 ° to 10 ° from the front end to the rear end of the filter net adhering portion,
And a rear side impregnated portion formed to be embedded in the shape of " ┏ "at the rear lower end of the foreign material dehydration separation plate.

Images