JPH04118188U - Scum removal equipment - Google Patents

Abstract

(57) [Summary] [Purpose] By installing a rotating shaft in the trough to operate the weir members, the number of parts is reduced, the manufacturing process is less labor-intensive, and the cost is considerably lower. , the equipment is smaller and easier to install. Furthermore, the seal has a simple structure, which reduces cost and makes construction easier. [Structure] The trough is characterized in that a rotating shaft is provided parallel to the water surface, and the weir member is supported on the rotating shaft. The trough is provided with a rotating shaft parallel to the water surface, and the weir member is supported on the rotating shaft, and a seal is formed between the weir member and the trough, and the weir member and the trough are sealed. The sealing means between the side end portions of the weir member is characterized by comprising a seal and a movable plate provided on the weir member and swinging together with the weir member while closely contacting the seal.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a scum removal device.

0002

[Conventional technology]

11 to 15 show a scum removal device previously proposed by the present inventor. . A rectangular sedimentation tank equipped with this device is installed with the axial direction facing the width direction of the pond. A plurality of sprocket shafts 200 (four sprocket shafts) and two sprocket shafts around each shaft 200. sprockets 201 attached to the sprockets 201, and Two chains 202 on the left and right sides are provided. The device is Some or all of the flights 203 attached to the horn 202... It is driven by the water to attract and remove scum (floating matter) on the water surface. ing. The scum removal device includes a trough 205, a guide support sheet 206, a weir member 208, and a transmission A reaching mechanism 209 is provided. The trough 205 has a rectangular cross-sectional shape on the upper and front sides. It is a long gutter-like structure with a part open, with its longitudinal direction facing the width of the pond. It is fixedly installed inside the sea urchin pond. The guide support sheet 206 is connected to the trough 205. It is also a long strip made of rubber material, and is located on the front side of trough 205. It is attached in an overhanging manner so that it can be bent up and down by elastic deformation. The weir member 208 is a hollow, long member with a substantially triangular shape, and the guide support sheet 20 The water surface 207 is attached to the front side of the seat 6 in an overhanging manner and is supported by the same seat 206. It is set up so that it moves up and down with . A transmission mechanism 209 causes the weir member 208 to swing up and down. Transmission mechanism 2 09 includes a support shaft 210, a drive arm 211, and an actuation arm 212. support The holding shaft 210 spans the width of the pond, and the drive arm 211 is attached to one side of the supporting shaft 210. It is a single arm that extends from the side toward the front. The actuating arm 212 An arm extending toward the trough 205, which is the opposite direction to the arm 211. , There are two on the left and right for stable operation. At the tip of the drive arm 211, there is a tracing section. A material 213 is provided. This copying member 213 has a cam surface on the bottom and has a cam surface on the bottom. The mu surface is a continuation of the two protrusions 213a and 213c and the recessed part 213b between them. It has a cam surface. By moving this copying member 213, the drive arm 211 and The operation of interlocking the operating arm 212 and pushing down the weir member 207 is the flight. It is a roller (driving unit) 214 that protrudes from one end of the (sludge scraping plate) 203. This roller 214 is provided at one end of the flight 203 on the copying member 213 side. It is attached by a bracket 215. 220 shown in FIGS. 14 and 15 is a side seal (sealing means), which is a side end of the weir member 208 and a side end of the trough 205. This is to prevent scum and water from entering between the meandering Although the weir member 208 and the guide support sheet 206 move up and down by being bent into a shape, It is made of rubber so that it can bend and deform accordingly. This scum removal device operates as follows. The chain 202 is driven by driving the Ikegami motor (not shown). The flight 203 attached to it moves in the direction of the arrow in FIGS. 11 and 12. Driven in slow circulation. Flight 203... is the pollutant that has settled at the bottom of the pond. Sludge is collected and guided into the pit 221, and the led sludge is pumped into a pond by a pump (not shown). They are now being excluded from the world. Flight 203, which is coming up, is on its side. The copying member 213 is pushed up by the roller 214. roller 214 contacts the copying member 213 in the order of protrusion 213a → recess 213b → protrusion 213c. While doing so, the member 213 is moved up and down. This causes the roller 214 to move to the first position. When hitting the protrusion 213a of the stage, the copying member 213 and the drive arm 211 are large. At the same time, the actuating arm 212 is pushed down, and the force is applied through the rod 222. As a result, the weir member 208 is pushed down below the water surface. At this time, scum 20 on the water surface 4, both large and small objects are guided into the trough 205 as water is sucked in. Afterwards, he is expelled from the trough 205. When the roller 214 comes to the recessed part 213b , the copying member 213 and the drive arm 211 are temporarily lowered, and the actuating arm 212 starts to rise. As a result, the weir member 208 is under the water surface and slightly floats up. Therefore, the amount of water until then will be less. The amount of water decreases, but the speed increases Therefore, the suction force of the scum 204 increases, and it attracts both large and small scum. Scum 204, which is far away, will be smoothly drawn closer to you. Become. When the roller 214 reaches the second stage protrusion 213c, the copying member 213 and The drive arm 211 then rises again, and the actuating arm 212 moves down. this As a result, the weir member 208 is lowered, and a large amount of the scum 204 is drawn into the trough 2. 05. In this way, the copying member 213 has a stepped shape. Therefore, the process from attracting the scum 204 to sucking it in is done very effectively. be.

[Problem that the idea aims to solve]

However, this scum removal device had the following drawbacks. (a) The weir member 208 is supported by a rubber guide support sheet 206 Therefore, in order to stabilize the operation, as shown in FIG. Two rods 222 are required. In this two-piece system, the support shaft 210 also You will need something long and supported at both ends. As a result, the number of parts increases and It took a lot of time and cost, and the equipment was large, making it difficult to install. It was difficult. (b) FIG. 14 shows a dammed state in which the dam member 208 floats on the water surface, and FIG. shows a state where the weir member 208 is submerged under the water surface and attracts scum, but conventionally The removal device includes an L-shaped plate 218 attached to both ends of the weir member 208 and a trough. 205 with a front plate 219 attached to the front side of the 205 and a side seal 220 between them. Because the seal was constructed by providing a The cost was high and the construction was difficult. This invention was made to eliminate these drawbacks.

0004

[Means to solve the problem]

In order to solve the above problem, the invention according to claim 1 is such that the lower part is submerged in water and the upper part is submerged in water. It is fixedly installed in the sedimentation basin so that it is above the water surface and is lower than the water surface. It has a large opening on one side and directs the scum and water introduced through the opening to the outside. A gutter-like trough configured to allow the At the same time, this vibration causes scum and water to appear on the water surface. A weir member that guides the water into the trough and stops it, and a drive installed on the flight in the sedimentation basin. A part of the structure includes a copying member that operates when the moving parts come into contact with each other to cause the weir member to swing. In the scum removal device equipped with a transmission mechanism for transmitting force to the sea urchin, the trough includes: A rotating shaft is provided parallel to the water surface, and the weir member is supported on the rotating shaft. It is characterized by being According to a second aspect of the invention, in the scum removal device, the trough has a water surface. A rotating shaft is provided parallel to the rotary shaft, and the weir member is supported on the rotating shaft. At the same time, the space between the weir member and the trough is sealed, and the weir member and the trough are sealed. A sealing means between the side ends is provided on the seal and the weir member and is in close contact with the seal. and a movable plate that swings together with the weir member.

[0005] Even if the transmission mechanism such as the operating arm is all in one type, the swinging of the weir member will not be stable. Ru. If a single type is possible, it supports the drive arm and the actuating arm of the transmission mechanism. The rotating shaft only needs to be short, and transmission is stable.

[0006] Hereinafter, this invention will be explained in detail with reference to the illustrated embodiments. 1 to 7 show an embodiment of this invention. In this example, the precipitation The pond is a so-called rectangular sedimentation pond, which is rectangular when viewed from above. Multiple (4) sprocket shafts 1 with their axial directions facing , and two sprocket shafts around each shaft 1. Two sprockets 2 are attached to the Two chains 3 on the left and right sides are provided. The outer circumference of chain 3 has a certain Multiple flights 4... are installed at intervals, so that they move in a circular motion. It has become. One end of the front or part of Flight 4 (in this example) A bracket 5 is attached to the end on the other side of the sprocket shaft 1 in Fig. 1). From this bracket 5, a roller shaft is installed so as to protrude further to the other side. A roller 6 is provided at the opposite end of the roller shaft. this The roller 6 moves in the direction of the arrow in Figure 1, descends diagonally, makes a U-turn, and passes through the pond bottom. Then it returns to near the water surface again. The scum removal device includes a trough 8. In trough 8, 8a is the lower part The back half is submerged below the water surface 9 and the upper end protrudes above the water surface 9, 8b is the water surface The bottom part 8c located within 9 is considerably lower than the back part 8a and the upper end is below the water level 9. The front part is shown. The trough 8 is located at the upper and front sides of the rectangular cross-sectional shape. It is a gutter-shaped piece with an open part and is longer than the width of the pond, and its longitudinal direction is in the width direction of the pond. It is fixedly installed within the pond so that it is visible. Both ends of the trough 8 in the longitudinal direction are square. The end plates are 8d and 8d. The trough 8 is connected to the pond side by a bracket (not shown). It is attached to the wall 10 and supported at both ends. A vertical pipe and a vertical pipe are connected to the bottom part 8b. The communication pipe 11 is connected to the horizontal pipe that passes through the hole made in the bottom part 8b. is connected to. The scum and water introduced into the trough 8 are passed through this communication pipe 11. and is guided to the next processing system. The end plate 8d of the trough 8 has through holes 8e at symmetrical locations, and both through holes 8e , 8e, and a pipe-shaped rotating shaft 12 is inserted therethrough. This rotating shaft 12 Both end portions of the trough are made to protrude on both sides of the trough 8, and the protruding portions are as shown in FIG. One side is shorter and the other is slightly longer, as shown. the shorter one is said to be on the right side when viewed from the front, and the longer side is on the left side, but in some cases this may be reversed. Sometimes I do. The protruding part on the right side rotates with a resin bush 13 and a bearing 14. It is freely supported, and the left protruding part also rotates freely with the resin bush 13 and bearing 14. Currently supported. The bearing 14 is fixed to the trough 8 with bolts 14a. times Axial movement of the rotating shaft 12 is prevented by a collar 15 and a stopper 16. times A cylinder 17 that rotates together with the rotating shaft 12 is attached to the outer periphery of the left side of the rotating shaft 12. This constitutes the final member of the transmission mechanism. On the outer periphery of this cylinder 17, there is a part of the transmission mechanism. A lever 18, which is a part, protrudes forward. This lever 18 is located on one side of the pond. It is located near the side wall 10 of. On the other hand, the roller 6 moves while being located on the same side as the lever 18. A bracket 20 is attached to one side wall 10 so that it is on the same side as the . Only one side wall 10 is provided, and the other side is not provided. provided in some cases Sometimes. A bearing 21 is installed on this bracket 20, and this bearing 21 A short rotation support shaft 22 projects horizontally. This rotation support shaft 22 is connected to the side wall 10 It is supported in a cantilevered manner with the side facing towards the inside of the pond (conventionally, it was supported at both ends). ). This rotary support shaft 22 has a drive arm 23 facing toward the roller 6. It's growing. A copying member 24 is attached to the tip of this drive arm 23. child The copying member 24 has protrusions 24a, 24c and recesses 24b in the same manner as described above. It is provided. This copying member 24 matches the trajectory of the roller 6 when viewed from above. ing. A square tube 25 is mounted on the rotation support shaft 22. In this square tube 25 The operating arm 26 is inserted and extends in the direction of the trough 8 . This operating The system 26 has only a single piece instead of the conventional two-piece type. Same arm 2 6 is located approximately in the same line as the drive arm 23, and the end on the trough 8 side and the aforementioned is connected to the tip of the lever 18 by a length-adjustable rod 27. The transmission mechanism 28 is composed of members from the copying member 24 to the cylinder 17. On the other hand, a support plate 30 is attached to the rotating shaft 12 at a position corresponding to the inside of the trough 8. ing. This support plate 30 is made of a strip-like plate material, and its base is bent into a round shape. It is made to fit along the outer peripheral surface of the rotating shaft 12 and is firmly fixed by welding. ing. When the roller 6 does not contact the copying member 24, the support plate 30 , it is made to stand up at an angle of about 35 degrees with respect to the horizontal plane. This support plate 30 An elongated hole 30a is formed in the middle in the inclination direction, with the longitudinal direction facing the inclination direction. A large number of long holes 30a are arranged in the longitudinal direction of the support plate 30. In addition, the support plate 3 A reinforcing rib 30b bent downward is connected to the strip length direction at the upper end of the tape 0 in the oblique direction. It is set up next. 31 is a weir member, and this weir member 31 is made by bending a stainless steel plate. It has a triangular part like a right triangle on the front part, and a two-piece part on the rear part. It has a hollow shape. This is an integrated structure made from a single board. The same weir The member 31 includes a plurality of stud bolts 32 on the back surface of the base, and these bolts The nuts 32 are passed through the elongated holes 30a, and the nuts 33 are attached from below. I'm being kicked. By tightening this nut 33, the weir member 30 is attached to the support plate 3. It is combined so that it partially wraps over 0. A long shaft seal 3 is provided between the rotating shaft 12 and the front surface 8c of the trough 8. 4 is attached with a stopper 34a. This shaft seal 34 is made of rubber and has a strip-like shape. It is made up of two pieces, front and back, and its upper end is elastically bent around the outer circumference of the rotating shaft 12, so that it does not deform. It is designed to press into contact with the This ensures a constant seal even when the rotating shaft 12 rotates. It is reliable and inexpensive. The weir member 30 is long and has a length in the longitudinal direction of the trough 8. However, scum and water are removed from between both sides and trough 8. There is a possibility of entering. Therefore, in this embodiment, a simple and reliable sealing means 35 is provided. Ta. This sealing means 35 includes a fixed side a provided at both ends of the trough 8 and a weir member 30. and a movable side b provided at both ends of the movable side b. The fixed side a includes two left and right side plates 36a, a back plate 36b, and a mounting plate 36c. The fixed side case 36 has an opening 39 at the upper end and front side. child On the fixed side a, place the mounting plate part 38 against the inner surface of the front part 8c of the trough 8 It is fixed so that it is substantially within the trough 8. This fixing is done by It can also be done from the side by screwing in the bolt 14a. Fixed side a is inside Rubber gels 41, 41 are attached to the sides so as to be left and right opposite. This seal 41 has protrusions 41a as shown in FIG. When you look at it, it has a dogleg shape. Here, 42 is the rubber bottom seal. This sticker 42 is pasted along the top of the support plate 30 and The top surface is in contact with the bottom surface of the fixed case 36 and the seal 41, as shown in FIG. The space between the top and bottom is sealed. The movable side b has a bent mounting part that almost follows the outer periphery of the weir member 30. between the material 45, the bolt 46 for fixing it to the weir member 30, and the seals 41, 41. It has a movable plate 47 that is slidably fitted into the plate. The mounting member 45 has a narrow width. It is a type that fits only on both sides of the weir member 30. This mounting member 45 is firmly fixed to the outer periphery of the weir member 30 by tightening the bolt 46. Possible One side of the moving plate 47 fits and is integrated with the upper surface of the mounting member 45, and the other part is attached to the seal 41. , 41 so that it can be moved inside the fixed side case 36. It has become.

[0007] As shown in FIG. 1, when the roller 6 does not hit the copying member 24, the drive arm 2 3 and the actuating arm 26 are horizontal, and the weight of the copying member 24 (the same member 24 is Weights may be attached and a stopper may be provided to keep it level) and weir member 3 Due to the buoyancy of water 1, etc., the weir member 31 floats so that its top is above the water surface 9. It's going up. Therefore, the scum on the water surface 9 and the inflow of water are prevented. Low The drive arm 23 is lifted up by the roller 6 hitting and following the copying member 24. , when the drive arm 23 reaches the first protrusion 24a, it is lifted up the most. Actuation a On the contrary, the beam 26 is lowered and is now greatly lowered from the water surface 9 as shown by the imaginary line in Figure 1. Become. As a result, more scum and water are attracted into the trough 8. When the roller 6 passes the protrusion 24a, the drive arm 23 begins to lower and the roller 6 passes the protrusion 24a. -6 comes to the recessed part 24b, the drive arm 23 is located between the solid line and the imaginary line in FIG. Return to position. As a result, the operating arm 26 also rises slightly, so the weir member 31 , it floats up to the point where its top is slightly below the water surface 9. As a result, the weir The flow of scum onto the material 31 will be limited to small scum, but As the flow on member 31 becomes faster, it pulls the scum from far away on the water surface closer. You will be able to do this. When the roller 6 comes to the protrusion 24c, the drive arm 23 It is raised again and the actuating arm 26 is lowered back down. This allows large scale In addition to the scum, the scum that was attracted earlier will also be attracted into the trough 8. this By making the tracing member 24 uneven, scum can be effectively attracted and treated. You will be able to In addition, a rotating shaft 12 is provided to connect the transmission mechanism 28 and the weir member 3. 1, so that only one actuating arm 26 of the transmission mechanism 28 is required. At the same time, only one rod 27 is required. The structure is very simple and lightweight. Not only that, but the construction has also become easier. The existence of the rotating shaft 12 is a trough. This leads to the reinforcing effect of No. 8 and also ensures stable rocking of the weir member 31. moreover , the sealing means 35 includes a fixed case 36 with a simple seal 41 and a movable plate 47. This is easier and cheaper than the conventional bellows-type rubber seal method. It will be possible to create it. Moreover, the width of the sealing means 35 can be made small. This makes it possible to more effectively utilize the trough width and attract more scum. Note that, as shown in FIG. 6, while filling the rotating shaft 12 with the magnet 50, The seal 34 is made with a magnet to further improve the sealing performance between the two. It can also be done. Further, regarding the sealing means 35, the fixed side case 36 and The seal 41 may also include a magnet. Furthermore, as shown in Figure 6, The inside of the fixed case 36 is filled with a sponge 51 to improve sealing performance. You can fill it up. Alternatively, a configuration as shown in FIG. 8 is also possible. This omits the rod A pin 53 is provided at the tip of the actuating arm 26, while a pin 53 is provided at the tip of the operating arm 26. A long hole 54 is provided in the lever 18, and the two are directly connected to each other so as to be interlocked. Made by Both the movable arm 26 and the lever 18 are a single piece. At this time, the lever 18 , in addition to being fixed to the protruding portion of the rotating shaft 12 from the trough 8; It is also free to fix it to the corresponding part inside. When the lever 18 is rotated, the shaft It is designed not to interfere with the seal 34. Note that the pipe 55 is connected to the back side of the trough 8. It is continued. Of course, the removal is carried out through the hole at the longitudinal end of the trough 8. You may. This has been done conventionally. 9 and 10 show a modification. That is, the lever from the rotating shaft 56 -57 is provided with a dogleg-shaped auxiliary lever 58 so that its length can be adjusted. A reverse copying member 59 is attached to the tip of an auxiliary lever 58. The reverse copying member 59 is attached to the roller 61 that descends downward along with the chain 60. Therefore, it can be lowered. When it goes down, the weir member 62 also goes down. ing. 63 is a lock bolt, and 64 is a fixture. The scum removal device has a roller that traces the scum as it circulates to the bottom of the pond. Some have a tracing member installed at the bottom of the pond so as to drive the member. The movement of the tracing member is The structure was such that the transmission was transmitted through a long rod extending up and down to operate the weir member above. There is something. This idea can also be applied to this type of device; in this case, long vertical ropes Connect the top end of the pad to the lever extending from the rotating shaft.

[0008]

[Effect of the idea]

Since this idea is constructed as described above, the number of parts is reduced, making it easier to manufacture. It takes less time and costs, and the equipment is smaller, making construction easier. It has also become easier. In addition, the seal has a simpler structure, lowering costs and making installation easier. It was.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of this invention.

FIG. 2 is a sectional view taken along line II-II in FIG. 1;

FIG. 3 is a view taken from the direction III in FIG. 2;

FIG. 4 is a right side view of FIG. 2;

FIG. 5 is a sectional view taken along the line V-V in FIG. 2;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 2;

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 2;

FIG. 8 is a side sectional view showing another embodiment.

FIG. 9 is a side sectional view showing another example of the drive method.

FIG. 10 is a plan view of FIG. 9;

FIG. 11 is a plan view showing one of the conventional scum removal devices.

FIG. 12 is a side sectional view of FIG. 11;

FIG. 13 is a perspective view showing a transmission mechanism.

FIG. 14 is a perspective view showing a conventional sealing method.

FIG. 15 is a perspective view of the sealing system of FIG. 14 in operation;

[Explanation of symbols]

4 chain 6 roller 8 Trough 9 Water surface 12 Rotation axis 28 Transmission mechanism 31 Weir members 35 Sealing means 41 Seal 47 Movable plate

Claims (2)

[Scope of utility model registration request] [Claim 1] A scum that is fixedly provided in a sedimentation basin with the lower part submerged in the water surface and the upper part above the water surface, and has an opening on one side lower than the water surface and is introduced through the opening. and a gutter-like trough configured to lead water to the outside, and a trough that is provided so as to swing toward the opening side of the trough, and due to this swinging, scum and scum on the water surface appear and disappear across the water surface. A part of the weir member that guides and stops water into the trough has a tracing member that operates when the drive unit installed on the flights in the sedimentation basin comes into contact with each other, and a transmission device that transmits force to swing the weir member. 1. A scum removal device comprising a mechanism, wherein the trough is provided with a rotating shaft parallel to the water surface, and the weir member is supported by the rotating shaft. [Claim 2] A scum that is fixedly provided in a sedimentation basin with a lower part submerged in the water surface and an upper part above the water surface, and has an opening on one side lower than the water surface and is introduced through the opening. and a gutter-like trough configured to lead water to the outside, and a trough-like trough that is provided so as to swing on the opening side of the trough. A part of the weir member that guides and stops scum and water into the trough is equipped with a tracing member that operates when a drive unit provided on a flight in the sedimentation tank comes into contact with the weir member, which applies force to cause the weir member to swing motion. In the scum removal device, the trough is provided with a rotating shaft parallel to the water surface, the weir member is supported by the rotating shaft, and the weir member and A seal is provided between the weir member and the trough, and the sealing means between the side ends of the weir member and the trough is constituted by a seal and a movable plate that is provided on the weir member and swings together with the weir member while closely contacting the seal. A scum removal device characterized by: