JP2015044169A - Suspended material removal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To scrape and disperse suspended materials with simple construction.SOLUTION: A suspended material removal device 100 is provided with: one or plural floating bodies 110 which float crossing with a liquid level; a traction member (wire) 120 which is connected to the floating body and has flexibility by which the floating body is stretched in a towed direction; a winding mechanism (winding unit) 130 for winding the traction member; and a contact material (columnar body) 140 which is provided on the course on which the floating body is towed, contacts with the floating body towed by the winding mechanism and guides the floating body vertically below the liquid level.

Description

  The present invention relates to a suspended matter removing apparatus for removing suspended matter such as scum floating on a liquid surface.

  Water tanks used in activated sludge equipment, culture equipment, and the like contain microorganisms, culture media, and the like in the liquid. For this reason, microorganisms, oil lipids, and the like in the liquid float as a result of attachment of gas generated by the respiration of microorganisms, and accumulate on the liquid surface as suspended matter. If suspended matter accumulates, it may overflow from the aquarium or may rot and generate a strange odor. In addition, substances that interact with the substances in the liquid naturally float and contribute to the reaction in the liquid. There is a risk that it will not. Therefore, conventionally, a means for chemically or physically removing the suspended matter has been taken.

  In the case of chemical removal, for example, an antifoaming agent composed of a surfactant is used. The action of the antifoaming agent destroys the bubbles that float the suspended matter and suppresses the formation of bubbles. As a result, the suspended matter is dispersed in the liquid.

  Moreover, when removing physically, the scraper (scum skimmer) is used, for example (for example, patent document 1). The scum skimmer scrapes floating substances by moving multiple floating bodies on the liquid surface, and the scraped floating substances are returned to the liquid by taking a shower from above the water tank or discharged outside the water tank. Is done.

Japanese Patent No. 4396880

  However, when an antifoaming agent is used, it is necessary to always add the antifoaming agent to the water tank, which increases the running cost. In addition, in a water tank such as a culture facility, when a process for dissolving gas in the liquid is required, such as supplying oxygen to microorganisms, the antifoaming agent accumulates at the interface between the gas and the liquid, and the liquid There is a possibility that the dissolution rate of the gas will decrease. Furthermore, a defoamer that is a chemical substance may not be used in a culture tank that produces food.

  Moreover, when using said scum skimmer, it is necessary to install large parts ranging from one end of the water tank to the other end, such as a guide rail for moving the floating body and a horizontal member for supporting the guide rail. For this reason, in the case of a large tank, installation may become difficult and there exists a possibility that it cannot be used. In addition, the scum skimmer may not be installed when wiring or piping of another device has already been installed on the liquid surface. Furthermore, in the case of a scum skimmer that covers the upper part of the water tank, it may not be used in a water tank that needs to be exposed to sunlight.

  Then, in view of such a subject, this invention aims at providing the floating substance removal apparatus which can scrape and disperse a floating substance with simple structure.

  In order to solve the above-described problems, the floating substance removing apparatus of the present invention is flexible so that one or more floating bodies that float across the liquid surface and the floating body are connected in the direction in which the floating body is pulled. A traction member having a traction member, a winding mechanism that winds up the traction member, and a contact that is provided on a path to which the floating body is pulled and that is pulled by the winding mechanism to contact the floating body vertically below the liquid level. And a material.

  In addition, the floating body may have a weight in a vertically lower part and form a surface perpendicular to the liquid surface by sinking the weight vertically downward in the liquid.

  In addition, when the floating body is positioned vertically below the contact material, a shearing device may be provided in which the floating body and the liquid around the floating body are in contact with each other to generate a shearing force on the liquid.

  A plurality of traction members may be provided, and at least two of the traction members may be connected to different floating bodies.

  According to the present invention, it is possible to scrape and disperse suspended matters with a simple configuration.

It is explanatory drawing for demonstrating a suspended | floating matter removal apparatus. It is explanatory drawing for demonstrating the procedure which scrapes off and disperses | suspends a suspended solid by a suspended | floating matter removal apparatus. It is a perspective view of the floating body and wire in the floating substance removal apparatus concerning a modification.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

(Float removal device 100)
FIG. 1 is an explanatory diagram for explaining the suspended matter removing apparatus 100. In particular, FIG. 1A is a top view of the water tank T in which the floating substance removing apparatus 100 is installed, and FIG. 1B is a side view of the water tank T in which the floating substance removing apparatus 100 is installed. (C) is a perspective view of the floating body 110 used in the floating matter removing apparatus 100. In addition, let the up-down direction in Fig.1 (a) be the width direction, the left-right direction be a depth direction, and let the front-back direction be a height direction. Further, in FIG. 1C, the width direction, the depth direction (thickness direction), and the height direction are defined as illustrated in accordance with the directions of FIGS.

  As shown in FIGS. 1 (a) and (b), the suspended matter removing device 100 is provided in the water tank T, and the floating body 110, the wire 120, the winding device 130, the cylindrical body 140, the stirring device 150, It is comprised including.

  As shown in FIGS. 1B and 1C, the floating body 110 is configured to include a main body 112 having a specific gravity smaller than 1 and a weight 114 having a specific gravity larger than 1, and the overall specific gravity is smaller than 1. Float in the liquid. The main body 112 is a rectangular plate-like member, and a weight 114 is fixed to the lower side in FIG. When the weight 114 sinks in the liquid, the side surface 112a and the side surface 112b of the main body 112 are in a positional relationship substantially perpendicular to the liquid surface.

  As shown in FIGS. 1A and 1B, for example, four floating bodies 110 are used in the suspended matter removing apparatus 100 of the present embodiment. The four floating bodies 110 are arranged on one end Ta side in the depth direction of the water tank T so that the side surface 112a and the side surface 112b face each other. Here, the four floating bodies 110 are respectively defined as a floating body 110a, a floating body 110b, a floating body 110c, and a floating body 110d from the one end Ta side of the water tank T. Four wires 120 are connected (fixed) to the floating body 110a, and two wires 120 are connected (fixed) to the floating bodies 110b, 110c, and 110d. In FIG. 1A, a connecting portion between the floating body 110 and the wire 120 is indicated by a black circle.

  As shown in FIG. 1B, the wire (traction member) 120 has one end connected to the floating body 110 and the other end connected to the take-up drum of the take-up device 130 through a lower part of a cylindrical body 140 described later. It is stretched in the depth direction of the water tank T. Further, the wire 120 is connected to the floating body 110 in the vertical direction in the height direction of the floating body 110, that is, on the side opposite to the side on which the weight 114 is provided. The material of the wire 120 is preferably a material that is flexible and hardly rots or deteriorates even when exposed to water or direct sunlight. For example, polypropylene is preferable because it is inexpensive.

  As shown to Fig.1 (a), the wire 120 can be divided into the wire 120a and the wire 120b according to the opportunity utilized. The wire 120a is connected to all the floating bodies 110 (floating bodies 110a, 110b, 110c, 110d) with a predetermined interval, and the wire 120b is connected only to the floating body 110a.

  The winding device (winding mechanism) 130 is a device that winds the wire 120, and in the depth direction of the water tank T, the water tank T on the opposite side (the other end Tb side) to the side where the floating body 110 is located (the one end Ta side). It is provided outside. In this embodiment, four winding devices 130 are used, and each of the four winding devices 130 is connected to the wire 120. The take-up drum of the take-up device 130 is rotatably supported by a motor (not shown). When the motor is driven, the wire 120 is taken up and the floating body 110 connected to the wire 120 is moved. .

  The winding device 130 is divided into a winding device 130a and a winding device 130b depending on the type of the wire 120 to be connected. The winding device 130a is connected to the wire 120a, and the winding device 130b is connected to the wire 120b. In this embodiment, two winding devices 130a and 130b are provided. Here, the winding device 130 pulls the winding devices 130a and 130b in a first mode, that is, a mode that directly pulls all the floating bodies 110, and a mode that pulls only the winding device 130a, that is, directly pulls the floating body 110a. Thus, there are two second modes for indirectly pulling the floating bodies 110b, 110c, and 110d, which can be changed by a switch or the like.

  The cylindrical body (contact material) 140 is a cylindrical member, and is provided so as to intersect the liquid surface of the water tank T in a state where the axial direction coincides with the width direction of the water tank T, and the lower side is located in the liquid. ing. Further, the columnar body 140 is positioned on the other end Tb side from the center in the depth direction of the water tank T, and is rotatably fixed by the support member 142. Since the cylindrical body 140 is provided on the path of the floating body 110 and the lower side is positioned in the liquid, for example, when the floating body 110 is positioned below the cylindrical body 140, the floating body 110 is submerged in the liquid. . That is, the floating body 110 is guided vertically downward from the liquid surface by the cylindrical body 140.

  The stirring device (shearing device) 150 is provided at the bottom of the water tank T below the cylindrical body 140 as shown in FIG. As the stirring device 150, for example, a propeller mechanism is used, and the propeller is rotated to stir the liquid, thereby creating a water flow in the liquid in the vertically lower region of the cylindrical body 140. When the floating body 110 comes into contact with the liquid in the vertically lower region of the cylindrical body 140, a water flow hits the side surface 112a and the side surface 112b of the floating body 110, and a shearing force is generated. In addition, although the stirring apparatus 150 was mentioned and demonstrated as a shearing apparatus, you may use the aeration apparatus which sends out gas from the bottom part of the water tank T. FIG.

  Next, a procedure for scraping and dispersing suspended matter by the suspended matter removing apparatus 100 will be described. FIG. 2 is an explanatory diagram for explaining a procedure for scraping off the suspended matter by the suspended matter removing apparatus 100. 2A is a top view showing a movement start state of the floating body 110, FIG. 2B is a side view showing a sinking state of the floating body 110, and FIG. FIG. 2D is a top view showing the assembled state of the floating bodies 110, and the processing is performed in the order of FIGS. 2A, 2B, 2C, and 2D. Is carried out.

  As shown in FIG. 2A, when the winding devices 130a and 130b are driven by the first mode of the motor and winding of the wires 120a and 120b is started by the winding devices 130a and 130b, the floating bodies 110a, 110b, and 110c are started. , 110d moves from one end (hereinafter referred to as “start end”) Ta side in the depth direction of the water tank T to the other end (hereinafter referred to as “end end”) Tb side in the depth direction of the water tank T (movement). Start state).

  As described above, the floating bodies 110a, 110b, 110c, and 110d are floated with the weight 114 partially positioned in the liquid, and the side surfaces 112a are substantially perpendicular to the liquid surface. By moving the side surfaces 112a of the floating bodies 110a, 110b, 110c, and 110d while being positioned substantially perpendicular to the liquid surface, floating substances such as scum floating on the liquid surface are collected near the liquid surface near the side surface 112a. Is possible.

  When the floating bodies 110a, 110b, 110c, and 110d continue to move, they come into contact with the cylindrical body 140. As described above, the cylindrical body 140 is restricted from moving in the depth direction of the water tank T by the support member 142, and the lower side is located in the liquid. Further, as described above, the wires 120a and 120b pass below the cylindrical body 140 and are connected to the winding devices 130a and 130b. For this reason, after the floating bodies 110a, 110b, 110c, and 110d are brought into contact with the cylindrical body 140 and further pulled by the wires 120a and 120b, as shown in FIG. Temporarily sinks into liquid (settling state). Then, when the floating bodies 110a, 110b, 110c, and 110d move to the end end Tb side from the cylindrical body 140, they float again. Specifically, in FIG. 2B, the floating bodies 110a and 110b are in contact with the cylindrical body 140 and are in a state where floating substances are accumulated on the liquid surface near the side surface 112a, and the floating body 110c is submerged in the liquid. In this state, the floating substance is dispersed in the liquid, and the floating body 110d has finished sinking in the liquid (dispersion of the floating substance in the liquid is completed) and is floating again.

  When the floating bodies 110a, 110b, 110c, and 110d come into contact with the cylindrical body 140 and settle in the liquid, the floating substances gathered by the floating bodies 110a, 110b, 110c, and 110d are in the liquid together with the floating bodies 110a, 110b, 110c, and 110d. Sink into. Further, as described above, the stirring device 150 is provided at the bottom of the water tank T vertically below the cylindrical body 140. When the liquid is stirred by the stirring device 150, a water flow is generated in the vertically lower region of the cylindrical body 140 and the surrounding liquid. And when a water flow contacts the side surface 112a and the side surface 112b of the floating bodies 110a, 110b, 110c, and 110d, a shearing force is generated. As a result, it is possible to promote the dispersion of the suspended matter submerged in the liquid, and the accumulation of the suspended matter on the liquid surface of the water tank T can be reduced.

  At this time, since the columnar body 140 is rotatably fixed by the support member 142, after the floating body 110 comes into contact with the columnar body 140, the columnar body 140 rotates and the floating body 110 smoothly moves toward the end Tb side. Can be moved.

  Then, as shown in FIG. 2C, when all the floating bodies 110a, 110b, 110c, and 110d are located at the end Tb side from the cylindrical body 140 and re-lifted, the driving of the motor in the first mode is completed. (Re-floating state).

  Finally, as shown in FIG. 2 (d), the motor is changed from the first mode to the second mode to drive the winding device 130b. The wire 120b is connected to the winding device 130b and connected only to the floating body 110a. Wind up. Since the floating body 110a is located closest to the start end Ta in the floating body 110, the floating body 110a moves to the end end Tb, so that the floating body 110a contacts the adjacent floating body 110b, and the floating bodies 110b, 110c, 110d is moved to the end end Tb side, and the floating bodies 110a, 110b, 110c, and 110d are gathered in a state of being overlapped on the end end Tb side (aggregation state).

  Although not shown, when it is necessary to move the floating body 110 to the start end Ta side, a separate winding device is provided on the start end Ta side and connected to the winding drum of the winding device on the start end Ta side. The wire is connected to the floating body 110. Then, the winding device on the start end Ta side is driven to wind the wire connected to the winding device on the start end Ta side, thereby pulling the floating body 110 to the start end Ta side.

  As mentioned above, according to the floating substance removal apparatus 100 concerning this embodiment, it becomes possible to scrape a floating substance with a simple structure and disperse | distribute it in a liquid.

(Modification)
Next, a modified example of the suspended matter removing apparatus 100 will be described. FIG. 3 is a perspective view of the floating body 210 and the wire 220 in the suspended matter removing apparatus 100 according to the modification. In FIG. 3, the width direction, the thickness direction, and the height direction are defined as illustrated in accordance with FIG.

  The floating body 210 includes a main body 212 and a weight 114. A weight 114 is fixed to one end side of the main body 212 in the height direction, and a circular shape penetrating in the thickness direction of the main body 212 on the opposite side to the side where the weight 114 is fixed in the height direction of the main body 112 and at both ends in the width direction. Are formed one by one. In the present embodiment, four floating bodies 210 are used. The four floating bodies 210 are a floating body 210a, a floating body 210b, a floating body 210c, and a floating body 210d from the start end Ta side.

  One end of the wire 220 is connected to the other end of the main body 212 of the floating body 210 in the height direction, and the other end of the wire 220 is connected to a winding device 130 (not shown). In the present embodiment, two wires 220 are connected to one floating body 210.

  When the floating body 210 is provided in the water tank T, the floating body 210 is disposed so that the side surface 112a and the side surface 112b of the floating body 210 are adjacent to each other, and the wire 220 connected to the floating body 210 is disposed closer to the end Tb side than the floating body 210. The floating body 210 is connected to the winding device 130 through the hole 212a of the main body 212. For this reason, in the water tank T, the wire 220 does not pass through the hole 212a of the floating body 210a located closest to the start end Ta, and the wire 220 connected to the floating body 210a passes through the hole 212a of the floating body 210b and passes through the hole 212a of the floating body 210c. The wire 220 connected to the floating bodies 210a, 210b passes through, and the wire 220 connected to the floating bodies 210a, 210b, 210c passes through the hole 212a of the floating body 210d. Therefore, by winding the two wires 220 connected to the respective floating bodies 210a, 210b, 210c, and 210d by the winding device 130, the floating bodies 210 can be independently moved one by one.

  For this reason, in the suspended | floating matter removal apparatus 100, the floating bodies 210a, 210b, 210c, and 210d are gathered to the end end Tb side by driving all the winding apparatuses 130 from a movement start state to a gathering state. Further, in the re-floating state, only the winding device 130 that winds the wire 220 connected to the floating body 210a closest to the start end Ta is driven to collect the floating bodies 210a, 210b, 210c, and 210d toward the end Tb. May be.

  Also in the suspended matter removing apparatus 100 of such a modified example, the suspended matter can be scraped and dispersed in the liquid with a simple configuration.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Is done.

  For example, in the above-described embodiment, four floating bodies 110 and 210 are used, but at least one floating body 110 and 210 may be provided.

  Further, the weight 114 is not limited in the shape of the weight 114 as long as the weight 114 sinks vertically downward in the liquid so that the floating bodies 110 and 210 intersect the liquid surface and form a surface perpendicular to the liquid surface.

  In the above embodiment, the wires 120 and 220 are provided on the opposite side (the other end side) to the side where the weight 114 is provided in the height direction of the floating bodies 110 and 210, but the side where the weight 114 is provided ( It may be provided on one end side. In this case, when the floating bodies 110 and 210 come into contact with the cylindrical body 140 and are further pulled by the wires 120 and 220, the side (one end side) on which the wires 120 and 220 are provided in the height direction of the floating bodies 110 and 210 is It is located closer to the end Tb side than the side (the other end side) where the weight 114 is provided, and is inclined and becomes substantially horizontal. As a result, the water flow generated by the stirring device 150 hits the side surfaces 112a of the floating bodies 110 and 210, and a shearing force is generated.

  In the above embodiment, the winding device 130 driven by a motor is used as the winding mechanism for the wires 120 and 220. However, a winding device driven by an engine may be used, or the wires 120 and 220 may be manually operated. May be wound up.

  Moreover, in the said embodiment, although the one cylindrical body 140 was provided as a contact material, you may provide the several cylindrical body 140 in parallel substantially parallel. Further, the contact material may not be cylindrical, and may not be fixed rotatably.

  Moreover, in the said embodiment, although the stirring apparatus 150 was provided, since the stirring apparatus 150 is an apparatus for promoting dispersion | distribution of a suspended | floating matter, it is not an essential structure.

  INDUSTRIAL APPLICABILITY The present invention can be used for a suspended matter removing apparatus for removing suspended matter such as scum floating on a liquid surface.

100 Floating substance removing device 110, 210 Floating body 114 Weight 120, 220 Wire (traction member)
130 Winding device (winding mechanism)
140 Cylinder (contact material)
150 Stirrer (shear device)

Claims (4)

One or more floating bodies that float across the liquid surface;
A flexible traction member connected to the floating body and stretched in a direction in which the floating body is pulled; and
A winding mechanism for winding the traction member;
A contact member provided on a path to which the floating body is towed, the floating body towed by the winding mechanism in contact with the floating body, and guiding the floating body vertically downward from the liquid level;
A suspended matter removing apparatus comprising:   2. The floating substance removing device according to claim 1, wherein the floating body has a weight in a vertically lower portion, and forms a surface perpendicular to the liquid surface when the weight sinks vertically downward in the liquid. .   2. A shearing device is provided, wherein when the floating body is positioned vertically below the contact material, the floating body and a liquid around the floating body come into contact with each other to generate a shearing force on the liquid. Or the suspended matter removing apparatus according to 2;   The suspended matter removal according to any one of claims 1 to 3, wherein a plurality of the pulling members are provided, and at least two of the pulling members are connected to the different floating bodies. apparatus.

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