JP2007138415A - Water area cleaning method and cleaning facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To clean an adjusted water area by moving a collecting floating body without diffusing floating suspended solid in the adjusted water area to efficiently collect the suspended solid from the adjusted water area when moving the collecting floating body having a suction port, in a water area where the suspended solid including phytoplankton stays, to suction-collect the suspended solid together with water from the suction port with this movement and recovering the collected suspended solid to clean the water area. <P>SOLUTION: An adjusted water area peripheral part is provided with a plurality of collecting floating body traction points 2, 21, 22 for determining the moving direction of the collecting floating body 1 in the adjusted water area, and rope winding devices 41, 42, 43 for towing the collecting floating body toward the respective traction points are arranged at the water area peripheral part. The collecting floating body is moved at a regulated speed by regulating the rope winding speed of one selected rope winding device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a suspended pond, lake, reservoir, dam cove, excavation, or the like from a closed water area or a microfluidic water area where suspended substances containing phytoplankton are retained, such as auko, red tide generating water area. The present invention relates to a method for collecting a substance and purifying a water area, and a facility for carrying out this method.

  Conventionally, as a method for collecting suspended substances, a method of carrying out aspiration collection while cruising the ship (Patent Document 1) by mounting a collection device equipped with a suspended substance suction pipe on a ship, and a water intake for collection are provided on the ship. A towed or suspended suspension material, especially aquatic killing that has an ultrasonic transducer inside that is oscillated in the water of the water where water is frequently generated A method of using a water flow generator that arranges an algae cylinder and generates a suction flow for sucking and flowing water containing a sea urchin from one end into the algae killing cylinder and a discharge flow for discharging from the other end ( Patent Document 2) and the like have been proposed.

JP 2002-1371 A Japanese Patent No. 3267904

  The above-mentioned method of cruising a ship equipped with a sampling device and the method of towing a water intake with a ship are free of suspended suspended solids due to the disturbance of the screw for propulsion driving of the ship and the influence of the waves associated with the movement of the ship. There are problems of spreading and hindering effective harvesting.

  In addition, the above-described method of using a water flow generator includes the problem that the generated water flow diffuses suspended suspended solids, and the water area that can be covered by a single water flow generator is relatively narrow. When the water area is wide, a large number of water flow generators must be arranged everywhere in the water, which is disadvantageous in terms of work and economy.

  Therefore, the present invention has an object to move a floating floating body having a water suction port within a predetermined water area without diffusing suspended solids, efficiently collect the suspended solids from the predetermined water area, and purify the water area. It is what.

In order to achieve the above-mentioned object, the invention of the method according to claim 1 of the present invention is such that a floating body for collection having an inlet is moved in a water area where suspended substances containing phytoplankton are retained, and the inlet In the purification method of the water area, the suspended substance is collected with suction from the water, the collected suspended substance is separated from the water and recovered, and the water generated at the time of separation is appropriately treated and then discharged into the water area.
In the above water area, set the adjustment water area where suspended substances should be collected,
In the periphery of the adjusted water area, a floating body towing point for collection for determining the moving direction of the floating body for collection in the adjusted water area is provided,
A rope hoisting device that pulls the floating floating body toward the pulling point via a pulling rope connected to the floating floating body is arranged around the adjustment water area,
Adjusting the rope winding speed by the rope hoisting device to move the harvesting float at an adjusting speed that does not cause substantial diffusion of suspended matter;
It is characterized by that.

  In the present invention, the “collecting floating body” means a propulsion drive device that floats in water such as a raft or boat, and generates diffusion of suspended substances such as screws for movement when collecting suspended substances. The thing which does not use. Further, the “rope hoisting device” refers to a device capable of feeding the wound rope together with the rope winding action. In addition, the “traction point” refers to a portion that is arbitrarily provided to determine the traction propulsion direction of the collection floating body in the adjusted water area. In addition, “no substantial diffusion of suspended solids” means that there is no or very little disturbance or agitation of suspended solids near the suction port, and there is no change in suspended solids concentration. A state that hardly occurs.

  According to the method of claim 1, the floating body for collection causes diffusion of suspended substances in the adjusted water area by adjusting the winding speed of the rope of the rope hoisting device that pulls the floating body for collection. Therefore, aspiration collection of suspended solids can be efficiently achieved while maintaining a high suspended solid concentration. In addition, the adjustment water area can be easily set by appropriately selecting the arrangement position of the traction point according to the generation state of the suspended matter.

  The method according to claim 1, wherein a plurality of the rope hoisting devices are collectively arranged in one work yard, and each rope hoisting device in the work yard and the water area are arranged. The rope is connected to the sampling floating body in the yard directly with the rope hoisting device in the yard or indirectly through a rope extending direction changing device provided at each of the traction points. By doing so, the operation of each rope hoisting device can be performed intensively in the work yard, and the adjustment water area can be set or changed without changing the position of the rope hoisting device in the work yard. This can be done simply by changing the installation position of the traction point.

  As in claim 3, in the method of claim 2, one of the rope hoisting devices is selectively used for rope winding, and the other rope hoisting device is selectively used for rope feeding. Adjust the rope hoisting speed and the rope unwinding speed of the rope hoisting device to move the sampling float in the direction of the traction point associated with the rope hoisting device selected for rope hoisting in that direction. After carrying out the suspended matter collection work, the role of each rope hoisting device for winding the rope or for feeding the rope is changed, and the floating body for collection is moved in the direction of another traction point, By changing the role one after another and changing the moving direction of the floating body for collection one after another, it is possible to move the floating body for collection in a form that covers almost the entire range of the adjusted water area. Suspended substances from the whole range It can be uniformly collected.

  As described in claim 4, in the method according to any one of claims 1 to 3, the turbidity of the suspended solid-containing water sucked from the suction port is measured, and the measured value becomes an allowable value. By repeating the movement of the floating body for collection in the adjusted water area until it reaches, it can be numerically confirmed that the purification of the adjusted water area has been achieved as intended. Here, the “allowable value” is a value set as a guideline indicating that the worker has achieved purification.

  The invention according to claim 5 relates to an apparatus for carrying out the purification method, and is adjusted by removing a suspended floating body having a suction device having a suspension material suction port and a suspended material. And a rope hoisting device which is disposed in the periphery of the water area to be moved and pulls the floating body for collection with a rope to move the adjustment water area in a predetermined direction at an adjustment speed.

  According to the invention described in claim 5, the arrangement of the rope hoisting device performed together with the setting of the traction point with respect to the adjusted water area, and the connection of the rope from the rope hoisting apparatus to the collection floating body on the adjusted water area are performed. Thus, the preparation necessary for collecting suspended solids is easily achieved with simple operations.

  As described in claim 6, in the purification equipment according to claim 5, a plurality of rope windings for towing the collection floating body toward a plurality of towing points arranged so as to surround the periphery of the adjusted water area. A work yard that collectively accommodates the upper device, and a rope direction changing device that is arranged at the towing point and converts the extending direction of the rope that connects the rope hoisting device in the work yard and the floating body for sampling. With this, all the rope hoisting devices can be operated intensively in the work yard, the moving operation of the floating body for collection becomes extremely simple and easy, and the adjustment water area is the arrangement of the rope direction changing device. By setting the position, it can be easily set.

  As described in claim 7, in the purification equipment according to claim 5 or 6, if the rope direction changing device is formed as a pulley, the adjustment water area can be easily set by determining the arrangement position of the pulley. At the same time, the pulley can be fixed to the arrangement position easily by a simple operation by using an appropriate fixing tool for supporting the pulley.

  As described in claim 8, in the purification equipment according to any one of claims 5 to 7, the rope hoisting device is constituted by an electric winch, and the rope winding speed and feeding speed of each electric winch are controlled. By providing a control device, it is possible to electrically control these speeds and to automate the movement of the floating body for collection so that the direction and speed can be adjusted.

  When collecting suspended substances that mainly contain mushrooms, the position or depth from the water surface where the mushrooms are distributed at a high concentration in the water depends on conditions and conditions such as the nature of the suspended substance, time zone, and water temperature. It is known that it varies in various ways, but taking this into consideration, as described in claim 9, in the purification facility according to claim 8, the floating body for collection has a float type gantry, If this frame is provided with a device for adjusting the depth position from the water surface of the suction device provided with the suction port, it is based on a float frame that maintains a constant distance from the water surface. In addition, the position of the suction port from the water surface can be adjusted according to the position where the water concentration is high, so that it is possible to efficiently collect water.

  According to a tenth aspect of the present invention, in the purification equipment according to the ninth aspect, the depth position adjusting device includes an operating mechanism that moves the suction device up and down, an electric motor that operates the operating mechanism, and the electric motor. If the electric motor control device for controlling the forward and reverse rotation and the amount of rotation is provided, the electric motor control device can be operated remotely from a work yard or the like, and therefore the water level of the suction port The lower position is remotely adjustable.

  According to the present invention, it is possible to easily set the adjustment water area corresponding to the state of occurrence of suspended solids, and the movement of the floating body for collection in this adjusted water area can be performed without causing the diffusion of the suspended solids. The suspended matter is efficiently recovered from the conditioned water area, and thus purification of the conditioned water area is achieved efficiently.

  FIG. 1 is a schematic plan view showing a case in which the present invention is carried out for collecting a giant scallop as a suspended substance from a castle dig.

  In the figure, A is a moat, B is a shore, C is a shore on the opposite shore, 1 is a floating body for collection, 2 is a work yard, and 3 is a sea cucumber recovery device.

  In the moat A, the adjustment water area to be purified by removing the sea cucumber is set by determining the traction point of the floating body 1 for collection. In the illustrated embodiment, one of the traction points is formed as the work yard 2. The other traction points are formed by pulleys 21 and 22 arranged on the shore C. That is, in the illustrated embodiment, a triangular range connecting the work yard 2 and the pulleys 21 and 22 is an adjustment water area. At this time, the pulleys 21 and 22 are traction points and function as a rope extending direction changing device. As is apparent from the above, the regulation water area is defined by determining the position of the traction point.

  The pulleys 21 and 22 and the following pulley 23 are supported by fixing tools 21a, 22a and 23a, respectively, and these fixing tools are configured to be easily fixed to the ground. However, the arrangement position of the pulley may be on the water surface, and in that case, the fixing tool is structured to be easily fixed to the soil on the bottom of the water.

  In the work yard 2, three electric winches 41, 42, 43 as rope hoisting devices are accommodated, and the tip of the rope 41a extending from the winch 41 is one of the sampling floating bodies 1 having a rectangular shape in plan view. The rope 42a that is coupled to the corner and extends from the winch 42 passes through the pulley 21, the tip of which is coupled to the other corner of the collection floating body 1, and the rope 43a that extends from the winch 43 is installed on the shore B. Via the guide pulley 23 and the pulley 22, the tip is connected to another corner of the collection floating body 1, and each rope is stretched in a slack state.

  As apparent from the above, the work yard 2 serves as a traction point when the rope extending from the winch arranged in the work yard does not pass through the pulley for defining the adjustment water area.

  A control device (not shown) for the electric winches 41 to 43 is provided in the work yard 2, and this control device adjusts the rope winding speed or the rope feeding speed of the electric winches 41 to 43 individually. Works.

  When the floating body for collection 1 is moved in the same water area in order to extract the sea urchin from the adjusted water area, one winch, for example, winch 41 is provided for rope winding, and the other two winches 42 and 43 are used for rope feeding. Served as. At that time, the winding speed and the feeding speed are adjusted by the control device, and the moving speed of the collection floating body 1 moving toward the winch 41 and the direction of the moving direction toward the winch 41 are adjusted by the adjusting speed at that time. Determined.

  When the winch 42 is used for rope winding after the floating body 1 for collection has reached the end of the adjusted water area by moving the winch 41 for winding the rope, the other two winches 41, 43 are ropes. Served for feeding. Thereby, the collection floating body 1 is moved toward the pulley 21 as a traction point. After completion of the movement, the winch 43 is now used for winding the rope and the other two winches 41 and 42 are used for feeding the rope, and the collection floating body 1 moves toward the pulley 22 as a traction point. Is called.

  In this way, the role of each winch for winding the rope and for feeding the rope is repeated one after another, and at that time, by adjusting the winding speed and the feeding speed, the adjustment water area of the collection floating body 1 is adjusted. Movement over substantially the entire range is achieved without causing the suspension material to diffuse, and as a result, the adjustment range is efficiently purified.

  During or during the movement of the collection floating body 1, the movement is paused, and the watermelon is sucked together with water from the suction port provided in the collection floating body. This suction is performed by a pump 5 provided in the work yard 2. Done. That is, the suction port is connected to the suction hose 6, and the suction hose is connected to the pump 5.

  The water-containing suspended substance sucked into the suction hose 6 is fed to the recovery device 3 by the pump 5, and here, the sea cucumber is separated from the water by the polymer filter and recovered. The separated water is subjected to a treatment for increasing the dissolved oxygen amount in the recovery device 3, and then returned to the adjusted water area.

  Suspended substance-containing water sucked from the suction port is measured for turbidity by a turbidimeter 8 disposed in the middle of the suction hose 6, and the measured values are stored in the electric winches 41, 42, 43 in the work yard 2. It is fed to the control device. This control device operates the electric winches 41, 42, 43 until the measured value falls below the allowable value, and repeatedly moves the collection floating body 1 in the adjusted water area.

  In FIG. 1, 7 a and 7 b are anti-pollution screens that block the inflow of sea cucumber from the adjacent water area into the adjusted water area.

  FIG. 2 shows another embodiment of the collection floating body 1. The collection floating body 1 has a gantry 11, and this gantry is mounted on a floating member 12 made of a foamed molded body, a hollow molded body, or the like. Is fixed. By placing the gantry 11 on the floating member 12 in this way, the distance between the gantry 11 and the water surface F is maintained substantially constant.

  A suction device 13 having a suction port 13 a and connected to the suction hose 6 is attached to the gantry 11. Further, an adjustment device 14 for adjusting the depth position from the water surface F by moving the suction device 13 up and down is provided on the gantry 11.

  The depth position adjusting device 14 has a screw rod 14a that is fixed at one end to the suction device 13 and extends vertically upward, an operating device 14b that holds a nut member screwed with the screw rod, and rotates the nut member. It has an electric motor 14c for driving and a control device 14d for controlling the rotation of the motor. The control device 14 can be remotely operated, for example, from within the work yard 2 and can move the suction port 13a of the inhaler 13 to a position below the surface of the water where the aquatic concentration is high. In addition, the position below the surface of the suction port 13a can be automatically adjusted in accordance with the time zone in which the concentration of the water is deep.

  Instead of arranging the suspended substance collection device on the shore as described above, it may be installed on the gantry 11 as shown in FIG. In this case, the suction port 13a of the suction device 13 is connected to the suspended solid recovery device 3 ′ via a suction hose 6 ′ indicated by a dotted line and a pump 5 ′ provided on the mount 11. The operation of the suspended material recovery device 3 ′ is the same as that of the suspended material recovery device 3 described above. In the figure, 3′a is a sludge tank that accommodates the recovered water sewage, and 3′b is a pipe for returning the water separated and treated by the recovery device 3 ′ to the water area.

FIG. 2 is a schematic plan view showing a method and apparatus according to the present invention for collecting aquatic as suspended matter from a castle dig. It is a schematic side view which shows embodiment of the floating body for extraction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floating body for collection 2 Work yard 3 Suspended substance collection device 5, 5 'Pump 6, 6' Suction hose 21, 22 Rope extension direction change device (pulley)
41, 42, 43 Rope hoisting device (electric winch)
41a, 42a, 43a Rope A Moat B, C Shore

Claims (10)

The floating body for collection having the suction port is moved to the water area where the suspended substance containing phytoplankton stays, and the suspended substance is sucked and collected together with water from the suction port, and the collected suspended substance is separated from the water. In the purification method of the water area that is recovered and appropriately treated the water generated at the time of separation and then discharged to the water area,
In the water area, set the adjustment water area where the suspended solids should be collected,
In the peripheral part of the adjusted water area, a floating body traction point for collection for determining the moving direction of the floating body for collection in the adjusted water area is provided,
A rope hoisting device for pulling the floating floating body toward the pulling point via a pulling rope connected to the floating floating body is provided in the periphery of the adjustment water area,
Adjusting the rope winding speed by the rope hoisting device to move the harvesting float at an adjusted speed that does not cause substantial diffusion of suspended matter;
A method of purifying water bodies characterized by the above. A plurality of the rope hoisting devices are intensively arranged in one work yard,
The rope connection between each rope hoisting device in the work yard and the collection floating body in the adjustment water area is directly or directly with the rope hoisting device in the work yard. Indirectly via a rope stretching direction changing device deployed in
The method of purifying a water area according to claim 1. One of the rope hoisting devices is selectively used for winding the rope and the other for feeding the rope,
Adjust the rope winding speed and rope unwinding speed of each of these rope hoisting devices, and move the sampling float in the direction of the traction point associated with the rope hoisting device selected for rope hoisting in that direction. Perform suspension material collection work,
Next, by changing the role of each rope hoisting device for winding the rope or for feeding the rope, the floating body for collection is moved in the direction of another traction point related to it, and the suspended solid collection work in that direction is performed.
Change the moving direction of the floating body for collection one after another by sequentially changing such roles,
The purification method of the water area of Claim 2 characterized by the above-mentioned. Measure the turbidity of suspended solid-containing water sucked from the inlet,
The purification method according to any one of claims 1 to 3, wherein the movement of the floating body for collection in the adjusted water area is repeated until the turbidity reaches an allowable value. A floating body for collection having an inhalation device with a suspension material inlet;
A rope hoisting device that is disposed in the periphery of the adjusted water area to be purified by removing suspended substances, pulling the floating body for collection with a rope, and moving the adjusted water area in a predetermined direction at an adjusted speed;
The purification equipment for implementing the purification method of Claims 1-4 characterized by having. A work yard that collectively houses a plurality of rope hoisting devices for towing the collection floating body toward a plurality of traction points arranged so as to surround the adjustment water area around the adjustment water area. When,
A rope direction changing device that is arranged at the towing point and performs a change in the extending direction of the rope connecting the rope hoisting device in the work yard and the harvesting floating body;
The purification equipment according to claim 5.   The said rope direction conversion apparatus is formed as a pulley, The purification equipment of Claim 5 or 6 characterized by the above-mentioned. The rope hoisting device is formed as an electric winch,
A control device for controlling the rope winding speed and rope feeding speed of these electric winches is provided.
The purification equipment according to any one of claims 5 to 7, wherein The harvesting floating body has a float frame;
A device for adjusting the depth position from the water surface of the suction device provided with the suction port is provided on the gantry.
The purification equipment according to any one of claims 5 to 8, characterized in that.   The depth position adjusting device includes an operating mechanism that moves the suction device up and down, an electric motor that operates the operating mechanism, and a control device that controls forward and reverse rotation and rotation amount of the electric motor. The purification equipment according to claim 9.

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