KR0118317Y1 - Apparatus for band screen filter - Google Patents

Abstract

The present invention relates to a traveling band screen filter device, which includes a pair of front and rear guide rails installed in a substantially U shape on the front wall and the rear wall of a filtration chamber installed in a water channel, and a pair of front and rear guides driven by a motor and a sprocket. To prevent leakage between the guide screen and the both ends of the screen bucket and the band screen with a plurality of triangular cylindrical screen bucket attached to the pair of endless drive chains before and after and along the rail running along the rail. It is composed of sealing means for the screen bucket is formed in a triangular cylindrical shape to reduce the material and cost required for its manufacture, and the sealing member that blocks the gap between adjacent screen buckets always coincide with the hinge point of the chain link. To prevent leakage between the screen buckets, On both sides of the screen bucket, one of the upper and lower ends is formed by the convex arcuate end and the other by the concave arcuate end, and the rubber material thread contacting the side of the seal plate is provided on the guide rail. It is possible to prevent leakage through the gap between the guide rails. In addition, since both side plates of the screen bucket are directly fixed to the inner side of the chain link of the drive chain, assembly and fabrication are simplified.

Description

Traveling Band Screen Filter Unit

1 is a longitudinal side view of a typical traveling band screen filter device.

2 is a longitudinal front view taken along line II-II of FIG.

3 is a partial longitudinal side view of a conventional band screen.

4 is a cross-sectional plan view taken along the line IV-IV of the prior art FIG.

5 is a partial front view of a conventional band screen.

Figure 6 is a front view showing a band screen of the traveling band screen filter device according to the present invention.

7 is a partial side view of the band screen according to the present invention.

8 is a cross-sectional plan view taken along the line VII-VII of FIG. 7.

9 is a partial front view of the band screen according to the present invention.

10 is a longitudinal front view of the screen bucket according to the present invention.

＊ Explanation of symbols on main parts of drawing

10: filtration chamber 11: guide rail

20: band screen 30: drive chain

31: chain link 32: link pin

33: roller 40: screen bucket

41: both side plates 42a, 42b: frame

50,60: sealing member 52,62: blocking part

53: cylindrical contact 63: sharp contact

70: seal plate 71,72: arcuate end

80: rubber material thread

The present invention relates to a Traveling Band Screen filter device. In particular, the structure is simple and can be reliably prevented from flowing out without being filtered. Therefore, the filtration performance is improved and the production is simple, and the material and cost are reduced. It relates to a traveling band screen filter device that can be saved.

Generally, a plurality of screen buckets are used to remove impurities such as suspended substances or suspended substances from a large amount of flowing water contaminated with impurities such as suspended substances or suspended substances, which are obstacles to downstream pumps and other equipment. Traveling band screen filter is used. The traving band screen filter device is opened by a front wall 111 having an inlet 112 and a rear wall 113 having an outlet 114 in the flowing water channel as shown in FIGS. 1 and 2. A plurality of semi-cylindrical screen buckets 124 are formed in which the fruit 100 is formed, and both sides of the filter chamber 100 are blocked, and a filtration net 126 of a mesh or perforated plate is installed on the circumferential surface thereof. Install an endless band screen 120 that extends up and down at the bottom of the band screen 120 so as to run in a state of being submerged in the flowing water, and the flowing water flows into the inside of the band screen 120 through the inlet 112 of the front wall 111. Filtered while passing through the filter net 126 of the screen bucket 124 to form a band screen 120, the filtered purified water is discharged through the outlet 114 of the defecation 113, the suspended matter caught in the net Or miscellaneous materials such as suspended substances Is contained in the bucket 124 is carried to the top is configured to be collected in the bins 116.

In this traveling band screen filter device, the front and rear pairs of endless drive chains 121 (only one side in the drawing) are driven and driven by a motor and a sprocket (not shown) to connect the screen bucket 124 to the endless type. ) Is used. The drive chain 121 is driven by a motor and a sprocket (not shown) at the upper end as shown in FIG. 2, and a roller is installed between the chain links 122 constituting the drive chain 121. 123 travels along the guide rail 115 fixedly installed in a substantially U-shape (only a part of the figure is shown) on the opposite surface of the front wall 111 and the rear wall 113.

The drive chain 121 has a roller 123 is mandrel installed on the link pin (122a) connecting the chain link 122, as in the general chain, but the roller 123 as shown in Figure 3 and 4 The diameter of) is wider than the width of the chain link 122 is used.

In connecting the drive chain 121 and the screen bucket 124, approximately C-shaped fixing pieces 128a are fixed between the chain links 122 of the drive chain 121 as shown in FIGS. 3 and 4. And one end of the connecting piece 128b is fixed to both side plates 125 of the bucket 124 to fix the other end of the connecting piece 128b to the side of the fixing piece 128a. Here, neighboring screen buckets 124 may have neighboring screens on both long sides of the screen bucket 124 as shown in FIG. 5 to prevent the flow of water between the neighboring screen buckets 124 without passing through the filtering network 126. The sealing member 130 is installed to prevent the flow of water between the bucket 124 and that.

In addition, between both ends of the screen bucket 124 and the guide rail 115, the rubber seals 140 at both ends of the screen bucket 124 are prevented from flowing out without passing through the filtering network 126. The inner side of the guide rail 115 is fixed to the seal plate (Seal Plate) 141 in which the rubber material seal 140 is in sliding contact.

In FIG. 4, the reference numeral 123a is a guide roller which is in rolling contact with the wife rail 115, and in FIG. 5, the reference numeral 127a is installed to be inclined upward on the inner lower end of the screen bucket 124 to collect contaminants. It is a debris fall prevention plate forming the groove portion (127). However, in such a conventional traveling band screen filter device, when connecting the screen bucket 124 to the chain link 122 of the drive chain 121, the fixing is inserted between the links 122 of the drive chain 121 Since it is connected by the piece 128a and the connecting piece 127b fixed to both side plates 125 of the screen bucket 124, it is difficult to manufacture structurally and the assembly is cumbersome, and the screen bucket 124 for the drive chain 121 is connected. ) Has a problem that the combination is not made correctly. In addition, in the conventional apparatus, the sealing member 130 sealing between the screen buckets 124 is installed at a position spaced apart from the center point of the link pin 122a which is the hinge point of the chain link 122 to which the screen bucket 124 is fixed. Since the sealing member 130 is repeatedly deformed while the band screen screen is traveling, it is easy to be damaged, and there is a problem such as leakage.

In the conventional apparatus, the rubber seal 141 is fixed to both ends of the screen bucket 124 for sealing between the screen bucket 124 and the guide rail 115, and a seal plate (inside the guide rail 115) is provided. When the rubber screen 141 is fixed to the rubber plate 141 so as to travel while slidingly contacting the seal plate 140, the band screen screen 120 is guided along the curved portion of the guide rail 115 while being deflected while traveling. There was a problem that the sealing by the seal plate 140 of the rubber material seal 141 is not made accurately. In addition, in the conventional apparatus, the cross section of the screen bucket 124 is semi-cylindrical, and the semi-cylindrical bilateral plate 125 at both ends and the filtering net 126 fixedly coupled to the circumference of the bilateral plate 125 are formed in a semi-cylindrical shape. And, it consists of a plurality of arc-shaped reinforcement piece (125a) is installed in the middle of the filter net 126, both the side plate 125 and the reinforcing piece (125a) to cut a lot from the original iron plate to leave a lot of material Not only wasting waste, there was a problem that the production is cumbersome, resulting in a cost increase.

The object of the present invention is to provide a traveling band screen filter device that is simple in structure but does not flow out of the screen bucket without flowing out of the screen bucket, thereby improving filtration performance as well as making it easy to manufacture and assemble. will be. Another object of the present invention is to ensure that the sealing is made even in a position where the traveling band screen is refracted during driving so that the filtration performance is not deteriorated. Another object of the present invention is to cut the both side plates and reinforcement plate constituting the screen bucket from the original steel sheet, there is almost no scrap, which can reduce the material and make the production simple and reduce the cost accordingly. I want to.

In order to achieve the object of the present invention, a pair of low and after guide rails installed in a substantially U-shape on the front wall and the rear wall of the filtration chamber installed in the waterway, and driven by a motor and a sprocket, run along a pair of front and rear guide rails. A band screen having a plurality of triangular cylindrical screen buckets attached to a pair of endless drive chains, and sealing means for preventing leakage between neighboring screen buckets and leakage between both ends of the guide rail and the screen bucket. In the configuration, the screen screen of the band screen is a triangular bilateral plate having a hypotenuse perpendicular to each other, a pair of screen frames fixed at both ends at the vertex of the hypotenuse and the base of the two sides plate, both sides plate Both ends are fixed to the hypotenuse of the long side is characterized by consisting of a filtering network fixed to the screen frame It is provided with a traveling band screen filtering device.

Hereinafter, the traveling band screen filter device according to the present invention will be described in detail according to the embodiment shown in the accompanying drawings. 6 is a schematic front view showing a band screen of a traveling band screen filter device according to the present invention, FIG. 7 is a partial side view of the band screen according to the present invention, and FIG. 8 is a cross-sectional plan view taken along the line VII-Ⅷ of FIG. 9 is a partial front view of the band screen according to the present invention, and FIG. 10 is a longitudinal front view of the screen bucket according to the present invention. In the following description, the same parts as those of the conventional configuration of the entire traveling band screen filter device will be described with reference to FIG.

As shown in the drawing, a pair of front and rear guide rails 11 (only one side is shown in the drawing), a motor and a sprocket (shown in the figure) are installed in a substantially U-shape on the front wall and the rear wall of the filtration chamber 10 installed in the channel. And a band screen 20 having a plurality of screen buckets 40 attached to the endless drive chain 30 of front and rear, front and rear pairs (only one side is shown in the drawing) driven along the guide rails, And sealing means for preventing leakage between neighboring screen buckets 40 and leakage between the guide rails 11 and both ends of the screen peeling kit 40.

Inlet and outlet are formed in the front wall and the rear wall of the filtration chamber 10, respectively, and the inlet is installed to be narrower than the width between the guide rails 11 so that the flow of water flowing through the inlet is guided inside the guide rails 11; The flow through is the same as the prior art shown in FIG. The drive chain 30 is composed of a plurality of chain links 31 in two rows and a roller 33 mandrel is installed by the link pin 32 between both ends of the chain link 31, like a general chain, The diameter of the roller 33 is larger than the width of the chain link 31 is used. The chain link 31 is narrow at one end and wide at the other end, and the narrow end is inserted into the wide end of the adjacent chain link and connected to the chain link pin 32.

Each chain link 31 of the drive chain 30 has an inner roller 34 for preventing the lateral flow of the drive chain 30 while being in contact with the side of the guide rail 11, the outer surface of the drive chain (30) A mandrel is mounted on the bracket 35 fixed to the rolling guide 35 to make a rolling contact with the side surface of the guide rail 11.

The screen bucket 40 is a two-sided plate 41 made of a right triangle, a pair of screen frames (42a, 42b) is fixed at both ends at the apex portion where both the hypotenuse side and the bottom side of the side plate 41, and both side plates Both ends are fixed to both hypotenuses forming a right angle at 41, and a long side is formed in a triangular cylindrical shape with the inner side open from the front by the filter net 46 fixed to the screen frames 42a and 42b.

At the vertices where both hypotenuses meet, the medial support section 43 bent at right angles inside the filtering network 46 is fixed, and the pressing support section 44 is fixed to the outside, and the screen frames 42a and 42b and the central support section ( 43 between the frame connection between the one edge is in contact with the filter network 46 is fixedly connected. One or more of the frame connections 45 are installed depending on the length of the screen bucket 40. The side plate 41 is perforated with a chain link connection hole 41a through which a fixing screw 49 for connecting to the chain link 31 of the drive chain 30 passes. In FIG. 2, two chain link connecting holes 41a are drilled, but three or more chain links may be drilled depending on the size of the screen bucket 40.

Among the screen frames 42a and 42b, a contaminant dropout preventing plate 48 is disposed to be inclined at a trailing part to form a contaminant collecting groove 47 between the two side plates 41 and the filtering net 46. have. The frame connecting section 45 is composed of two band plates cut at 45 ° at both ends and welded to each other, and are welded to the screen frames 42a and 42b and the center supporting section 43. In connecting the screen bucket 40 to the drive chain 30, each of the chain links 31 is formed through a chain link connection hole 41 a formed at an edge of an opening side of both side plates 41 of the screen bucket 40. Fixing connection is made by fastening the fixing screw 49 to the screw hole 31a formed in the side surface. The sealing means is a sealing member (50, 60) is fixed to the upper and lower end surface of the screen bucket 40 to block the gap between the adjacent screen bucket 40, and both side plates 41 of the screen bucket 40 It consists of a seal plate 70 extending toward the opening side and a rubber material seal (80) attached to one side of the guide rail (11), the edge of which is in contact with the seal plate (70) surface. The sealing member (50, 60) is a gap between the fixing portion (51, 61) fixed to the upper and lower end surface of the screen bucket 40, and the screen bucket 40 adjacent to the fixing portion (51, 61) It is formed by the shielding portions 52 and 62, each of which is bent to a width corresponding to half of its tip, and the tips thereof contact each other. One of the sealing members 50 and 60 attached to the upper and lower end surfaces of the screen bucket 40, in the illustrated example, a cylindrical contact portion 53 is formed at the tip of the blocking portion 51 of the upper sealing member 50. On the other hand, in the illustrated example, a sharp contacting contact portion 63 is formed at the tip of the blocking portion 62 of the lower sealing member 60. The seal plate 70 is fixed to the bottom side of both side plates 41 of the screen bucket 40 and protrudes inward, and is formed by an arcuate end portion 71 with convex ends and a concave arcuate end 71 adjacent to each other. The concave arc-shaped end portion 71 and the concave arc-shaped end portion 72 of the seal plate 70 are in close contact with each other.

The rubber material thread 80 is fixed by a fixing screw (not shown) in a state sandwiched between one side of the guide rail 11 and the reinforcing piece 81 fixed thereto. Referring to the operating state of the traveling band screen filter device of the present invention configured as described above are as follows.

In installing the traveling band screen device according to the present invention, the band screen 20 is placed on the front wall and the front wall of the filtration chamber 10 in the filtration chamber 10 of the channel, as in the conventional method shown in FIG. The guide rail 11 is installed to be guided along with the installed guide rails 11, and the drive chain 30 is mounted on a driving sprocket (not shown) to travel in an endless type.

When power is applied to the drive motor (not shown), the drive chain is rotated by the drive motor to drive the drive chain 30 in an endless type. Accordingly, the screen bucket 40 fixedly coupled to the drive chain 30 moves upwardly and downwardly on the other side, and the contaminants mixed in the flowing water are caught by the filtering network 46 of the screen bucket 40 and filtered. Only water flows out through the outlet formed in the rear wall.

The contaminants caught on the filtering net 46 are collected in the contaminant collecting groove 47 of the screen bucket 40 and the contaminant collecting groove 47 is directed downward at the time when it starts moving downward at the top of the band screen 20 traveling path. Collected contaminants are collected in the bins (12). At this time, the screen bucket 40 is moved downward and locked again in the flowing water by completely removing the contaminants attached to the screen bucket 40 by spraying the washing water at a high pressure by the washing water spraying means 13 installed at the top. In doing so, the filtered contaminants are prevented from re-incorporation.

In this filtering operation, sealing members 50 and 60 are attached to upper and lower end surfaces of adjacent screen buckets 40 to prevent the flow of water from flowing out between the screen buckets 40 and the guide rails 11 and the gaps between them. This will improve the filtration performance. That is, the sealing members 45 and 60 are formed of the link pins 32 having the circumferential contact portion 53 and the sharp contact portion 63 formed at the front end of the blocking portion 52, which are hinge points of the chain link 31. Since it is always set to coincide with the center, it is possible to reliably prevent the running water from flowing out as it is through the gap between the upper and lower end surfaces of the adjacent screen bucket 40 even when the band screen 20 is refracted. Since the convex arcuate end 71 and the concave arcuate end 72 are formed in the upper and lower ends of the seal plate 70 attached to both side plates 41 of the bucket 40, even in the position where the band screen 20 bends, There is no gap between the upper and lower ends of the adjacent seal plate 70, and the edge of the rubber material seal 80 attached to the guide rail 11 is always in close contact with the seal plate 70, so that the guide rail 11 Flow between the screen bucket 40 and Becomes becomes possible to reliably prevent outgoing. In addition, since the screen bucket 40 is formed in a triangular cylindrical shape, almost no strays are produced in the production of the both side plates 41, so that material and cost can be reduced.

In addition, the coupling of the drive chain 30 and the screen bucket 40 is also fixed to the side of the drive chain 30 as it is, assembling is easy. The present invention is not limited only to the above-described embodiments, and various modifications are possible within the spirit and scope of the present invention.

Claims (5)

A pair of front and rear guide rails 11 installed in a substantially U-shape on the front wall and the rear wall of the filtration chamber 10 installed in the waterway, and driven by a motor and a sprocket, and run along a pair of front and rear guide rails 11. The leaking between the band screen 20 and a plurality of triangular cylindrical screen bucket 40 attached to a pair of endless front and rear drive chain 30, the neighboring screen bucket 40 and the guide rail 11 And sealing means for preventing leakage between both ends of the screen bucket 40, the screen bucket 40 of the band screen 20 is a triangular side plate having a hypotenuse perpendicular to each other ( 41) and a pair of screen frames 42a and 42b at which both ends are fixed at the vertices where the hypotenuses and the bases of the two side plates 41 meet, and both ends are fixed to the hypotenuses of both side plates, and the long sides are screen frames 42a and 42b. Consisting of a filtering net 46 fixed to Traveling band screen filtration device. The traveling band screen filter device according to claim 1, wherein the screen bucket (40) is fixed to both side plates (41) of the chain link (31) of the drive chain (30). According to claim 1, wherein the sealing means is fixed to the upper and lower end surface of the screen bucket 40 has a blocking portion (52, 62) for blocking the gap between the adjacent screen bucket 40, the tip of the blocking portion is Sealing members 50 and 60 which are always in contact with each other at a position coinciding with the hinge point of the drive chain 30, and seal plates 70 extending to the opening side on both side plates 41 of the screen bucket 40 and the Traveling band screen filter device, characterized in that consisting of a rubber seal (80) attached to one side of the guide rail (11) and the edge thereof is in contact with the outer surface of the seal plate (70). The cylindrical contact portion 53 is formed at the tip of one of the blocking portions 52 of the sealing members 50 and 60 attached to the upper and lower end surfaces of the screen bucket 40, and the other blocking portion. Traveling band screen filter device, characterized in that the sharp contact portion (63) is formed at the tip of the portion (62). 4. The seal plate (70) is fixed to the bottom sides of the side plates (41) of the screen bucket (40) and protrudes inwards, and has both convex arcuate ends (71) and concave arcuate ends (72). The seal plate 70 adjacent to the convex arcuate end 71 and the concave arcuate end 72 are hermetically sealed to prevent leakage between the guide rail 11 and the screen bucket 40. Traveling band screen filter device, characterized in that configured.