JP2016204855A - Reclamation device for water surface reclamation site, and reclamation method for water surface reclamation site - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reclamation device and a reclamation method for a water surface reclamation site 6 that enhance reclamation density when reclaiming any reclamation point of the water surface reclamation site 6.SOLUTION: A reclamation device 1 is selected that includes: a transport part (a horizontal conveyance channel) 3 for transporting a slurry-form reclamation object from a slurry source 2 to any reclamation point in a water surface reclamation site 6; a connecting part 4 for changing a direction of transport of the reclamation object transported by the transport part 3 to a vertical direction, at the reclamation point; and an outlet part (a vertical conveyance channel) 5 having a base edge connected to the connecting part 4 and transporting the reclamation object transported from the connecting part 4 in the vertical direction. An outlet (an opening) 51 is provided on a tip side of the outlet part 5, the outlet 51 being positioned opposite a water bottom of the reclamation point or embedded in the reclamation object accumulating on the water bottom.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a landfill apparatus for a water surface landfill site and a landfill method for a water surface landfill site.

Coal ash and gypsum powder produced from a coal-fired power plant and blast furnace slag powder produced from a blast furnace (hereinafter referred to as “coal ash, etc.”) are not landfilled at the final disposal site. . The final disposal site includes an onshore landfill site and a water surface landfill site, and the water surface landfill site has a volume of about 800 m in length, 800 m in width, and about 10 m in depth. In addition, the final disposal method includes wet ash landfill after humidifying coal ash, etc., and landfill with dump bulldozer, etc., and slurry landfill after landfill disposal after mixing coal ash etc. and water Broadly divided.
In land reclamation, coal ash or the like humidified to such an extent that ash does not scatter is landfilled.

  Slurry landfill is used at the landfill disposal site, but the slurry produced by kneading coal ash etc. with water is (1) a method of discharging water into the water along the slope of the revetment at the disposal site, and (2) the water surface in the disposal site. (3) Method of discharging in the water near the water surface in the disposal site, and (4) Transporting the coal ash etc. in the form of slurry with a pipe or hose, and its tip is near the bottom of the water in the disposal site There is known a method in which the water is set in water (the one that has been implemented is about 1 m above the bottom of the water) and discharged (see Patent Document 1).

JP 2001-254339 A

In any of the above-mentioned slurry landfill methods, the coal ash etc. diffuses in the water surface and water until the coal ash etc. is deposited on the bottom of the water surface landfill site, so the landfill density is reduced and the water surface landfill site. There is a problem that the amount of coal ash and the like discarded per fixed volume of the water is reduced.
Therefore, in order to effectively use the water surface landfill disposal site, it becomes a problem to land coal ash etc. at high density.

As landfill progresses at the water surface landfill site, it is necessary to move the landfill site within the wide landfill site. Here, there is a restriction that articles other than the disposal-permitted items stipulated by the Waste Disposal and Cleaning Law (hereinafter referred to as “Waste Cleaning Law”) cannot be left in the disposal site. is there. Therefore, when a fixed discharge part is provided in the water surface landfill disposal site, there is a problem that it takes time and cost to remove the fixed discharge part after the completion of landfill in a predetermined place.
Therefore, it is also a problem to make it possible to move a device capable of high-density landfilling to an arbitrary place in a vast water surface landfill site and to make it possible to landfill at an arbitrary landfill point of the water surface landfill site.

  The present invention has been made in view of the above circumstances, and can be used for reclamation of a water surface landfill site, which can increase the landfill density when landfilling an object at any landfill site of the water surface landfill site. It is an object to provide an apparatus and a landfill method.

To solve the above problem,
The invention according to claim 1 is a landfill device for landfilling a slurry-like landfill object at an arbitrary landfill point of a water surface landfill disposal site, and transfers the slurry-like landfill object from a slurry supply source to the landfill point. A horizontal transfer path, a connecting part that changes a transfer direction of the landfill object transferred by the horizontal transfer path to a vertical direction at the landfill point, and a base end side is connected to the connecting part, and the connecting part A vertical transport path for transporting the landfill object transferred from the vertical direction in the vertical direction, and has an opening on the tip side of the vertical transport path, the opening facing the water bottom of the landfill point or the It can be embedded in the landfill object deposited on the bottom of the water.

  The invention according to claim 2 is the landfill device of the water surface landfill disposal site according to claim 1, wherein the horizontal transport path and the vertical transport path are not directly connected.

The invention according to claim 3 is the landfill device for a water surface landfill site according to claim 1 or 2, wherein at least a part of the connecting portion is exposed on the water surface.

  The invention according to claim 4 is the landfill device of the water surface landfill disposal site according to any one of claims 1 to 3, wherein the vertical conveyance path has a structure that can be expanded and contracted in a vertical direction.

  The invention which concerns on Claim 5 is a landfill apparatus of the water surface landfill disposal site of Claim 4 whose said structure which can be expanded-contracted in a perpendicular direction is a double pipe structure which has an inner tube and an outer tube | pipe.

  According to a sixth aspect of the present invention, the proximal end of the inner tube is connected to the connecting portion, the opening is provided on the distal end side of the outer tube, and the outer tube is perpendicular to the inner tube. It is a landfill apparatus of the water surface landfill disposal site of Claim 5 which slides in a.

  The invention which concerns on Claim 7 is a landfill apparatus of the water surface landfill disposal site of Claim 6 in which the said connection part has the raising / lowering means of the said outer tube | pipe.

  In the invention according to claim 8, the proximal end of the outer tube is connected to the connecting portion, the opening is provided on the distal end side of the inner tube, and the inner tube is perpendicular to the outer tube. It is a landfill apparatus of the water surface landfill disposal site of Claim 5 which slides in a.

  The invention according to claim 9 is the landfill device of the water surface landfill site according to claim 8, wherein the connecting portion has a lifting means for the inner pipe.

  According to a tenth aspect of the present invention, the connecting portion has a hopper, the proximal end of the vertical conveyance path is connected to the diameter-reduced portion of the hopper, and the horizontal conveyance is provided on the diameter-enlarged portion side of the hopper. It is a landfill apparatus of the water surface landfill disposal site as described in any one of Claims 3 thru | or 9 which can supply the said landfill target object transferred by a path | route.

  The invention which concerns on Claim 11 is a landfill apparatus of the water surface landfill disposal site as described in any one of Claim 3 thru | or 10 with which the said connection part has a moving means to move on the water surface of the said water surface landfill disposal site. is there.

  The invention according to claim 12 is provided with a plurality of unit-type water floats floatable on the water surface of the water surface landfill disposal site, and the plurality of water floats connected so as to have flexibility are the water surface landfills. It is a landfill apparatus of the water surface landfill disposal site as described in any one of Claims 3 thru | or 11 provided between the arbitrary landfill points of a disposal site, and the said slurry supply source.

  According to a thirteenth aspect of the present invention, the horizontal conveyance path is configured such that a plurality of piping units are connected so as to have flexibility, and the piping units are respectively fixed to the water float. Item 13. A landfill device for a water surface landfill site according to Item 12.

  The invention which concerns on Claim 14 is provided with the landfill apparatus of the water surface landfill disposal site as described in any one of Claim 3 thru | or 13 provided with the said 2 or more said connection part and the bypass path | route which connects between the said connection parts. It is.

  The invention which concerns on Claim 15 is a landfill apparatus of the water surface landfill disposal site as described in any one of Claims 1 thru | or 14 which has a washing water supply path | route in the base end side of the said horizontal conveyance path | route.

  The invention which concerns on Claim 16 is a landfill apparatus of the water surface landfill disposal site as described in any one of Claims 1 thru | or 15 whose said landfill object is slurry-like coal ash.

The invention according to claim 17 is a landfill method for landfilling a slurry-like landfill object at an arbitrary landfill point of a water surface landfill disposal site, and transferring the slurry-like landfill object from a slurry supply source to an arbitrary landfill point At the landfill point, the transfer direction of the landfill object is changed to the vertical direction, and when the landfill is started, the landfill object is discharged from the position close to the water bottom of the landfill point toward the water bottom. Then, after the landfill object is deposited on the water bottom, the landfill method is a landfill disposal method for discharging the landfill object from the position embedded in the deposited landfill object toward the water bottom.

  The invention according to claim 18 is a landfill method for a water surface landfill site, wherein a discharge height of the landfill object is adjusted in accordance with a deposition amount of the landfill object.

  The invention according to claim 19 is a landfill method for a water surface landfill disposal site, wherein the amount of deposition is estimated from a vertical transfer state of the landfill object.

The landfill apparatus of the water surface landfill site according to the present invention includes a configuration of a horizontal transport path for transferring a slurry-like landfill object from a slurry supply source to an arbitrary landfill point of the water surface landfill site, and a landfill transported by the horizontal transport path. A vertical conveyance path for transferring the object in the vertical direction, and the opening on the tip side of the vertical conveyance path from which the slurry-like landfill object is discharged is disposed opposite to the bottom of the landfill point or the above Since it can be embedded in the landfill object deposited on the bottom of the water, the landfill object can be prevented from diffusing into the water when released from the opening, so the landfill density can be increased. .
Accordingly, since the water surface landfill disposal site can be used effectively, the life of the disposal site can be extended.

It is drawing which shows the structure of the landfill apparatus of the water surface landfill disposal site which is one Embodiment to which this invention is applied. It is drawing which shows the structure of the connection part which uses a slurry receiving hopper. It is drawing which shows the structure of a lifting apparatus. It is drawing which shows the structure of the discharge pipe of a double pipe structure. It is drawing which shows the structure which connects two connection parts by a bypass pipe. It is drawing which shows the structure of the unit type surface float used for the landfill apparatus of the water surface landfill disposal site which is one Embodiment to which this invention is applied. It is drawing which shows the structure of the transport part using a unit type water float. (A) It is drawing which shows the landfill method of a water surface landfill disposal site, Comprising: The state of the start of landfill is shown. (B) It is drawing which shows the landfill method of a water surface landfill disposal site, Comprising: The state when landfill progressed is shown.

  Hereinafter, the configuration of a landfill apparatus of a water surface landfill disposal site that is an embodiment to which the present invention is applied will be described in detail with reference to the drawings together with a landfill method using this landfill apparatus. In addition, in the drawings used in the following description, in order to make the features easy to understand, there are cases where the portions that become the features are enlarged for the sake of convenience, and the dimensional ratios of the respective components are not always the same as the actual ones. Absent.

First, a landfill apparatus (hereinafter simply referred to as “landfill apparatus”) 1 of a water surface landfill disposal site, which is an embodiment to which the present invention is applied, will be described. FIG. 1 is a diagram schematically showing a configuration of a landfill apparatus 1 which is an embodiment to which the present invention is applied.
As shown in FIG. 1, the landfill device 1 of this embodiment includes a transport unit (horizontal transport path) 3 that transports slurry-like coal ash or the like (landfill object) from a slurry supply source 2 to a landfill point, and a connecting unit. 4 and a discharge unit (vertical conveyance path) 5 are schematically configured.
The landfill device 1 is a device for landfilling slurry-like coal ash or the like at an arbitrary landfill point of the water surface landfill disposal site 6.

  The landfill object of the landfill apparatus 1 of this embodiment is not particularly limited to coal ash or the like as long as it can be made into a slurry. Specific examples of other landfill objects include waste soil and sludge.

  The slurry supply source 2 is installed in the land portion 64 of the water surface landfill disposal site 6. Although not shown in the drawing, the slurry supply source 2 includes a silo for storing coal ash and the like, a water storage tank, a kneader, and a slurry pumping device. The slurry supply capability of the slurry supply source 2 is determined according to the landfill amount of coal ash or the like.

  In order to produce a slurry, coal ash and the like and water are kneaded by the kneader described above to produce a slurry. The kneader has a function of adjusting the mixing ratio of coal ash and water to an appropriate range.

  The water content of the slurry is generally about 40%, but is not limited thereto. If the water content of the slurry is reduced, it is possible to further increase the landfill density, but it is necessary to adjust to a range that does not cause clogging.

  The slurry pressure feeding device has a discharge pressure necessary for extruding the slurry from the device outlet to the discharge unit 5. A general diaphragm pump, a tube pump, or the like can be used as the slurry pressure pump.

  The transport unit 3 is a device for transporting the slurry supplied from the slurry supply source 2 to the connecting unit 4, and includes a transport pipe 30, a float 31, an anchor 32, a wire 33, and a washing water pipe 34.

  The transport pipe 30 transports the slurry fed from the slurry supply source 2 to the connecting portion 40 of the connecting portion 4. Some of the landfill sites 6 have an area of about 800 m × 800 m, and the length of the transport pipe 30 in that case may exceed 400 m. The cross-sectional size of the transport pipe 30 is determined in consideration of the pressure loss of the pipe determined from the slurry supply amount, the length of the transport pipe 30 and the like, but is generally about 150A (pipe outer diameter 150 mm). A pipe having a flexible structure such as a steel pipe or a flexible resin pipe or a corrugated pipe can be used. By adopting a flexible material or structure, the transport tube 30 can be prevented from breaking even if the transport tube 30 is rocked by waves or the like.

  The float 31 is connected to the transport pipe 30 to float the transport pipe 30 from the water bottom 62. By the way, when a fixed discharge part is provided in the water surface landfill disposal site, there is a problem that it takes time and cost to remove the fixed discharge part after the completion of landfill in a predetermined place. On the other hand, by connecting the float 31 to the transport pipe 30 and floating the transport pipe 30 from the water bottom 62, the resistance at the time of movement of the transport pipe 30 is reduced, and the connecting part connected to the tip of the transport part 3 4 and the discharge part 5 can be easily moved to arbitrary positions in the water surface landfill site 6.

  The anchor 32 and the wire 33 connect between the water bottom 62 and the float 31 or the transport pipe 30 so that the transport pipe 30 can be moored at a certain position on the water surface 61. When moving the landfill point, for example, when using a steel anchor, the transport pipe 30 can be easily moved by lifting the anchor 32 from the water bottom 62. On the other hand, when the anchor 32 in which coal ash or the like is put in the flexible container bag is used due to restrictions such as the waste cleaning method, the wire 33 connected to the anchor 32 is removed, and only the transport pipe 30 and the wire 33 are left with the anchor 32 remaining. May be moved.

  The connecting portion 4 is a device for changing the transfer direction of the slurry transferred in the substantially horizontal direction in the transport portion 3 to the substantially vertical direction. The connecting portion 40, the float 41, the lifting device (lifting means) 42, and the anchor 43. And a wire 44.

  The connection part 40 connects between the transport pipe 30 and the discharge pipe 50, changes the transfer direction of the slurry that has been transported in the substantially horizontal direction in the transport part 3 to a substantially vertical direction, and puts the slurry in the discharge pipe 50. Transport. The connecting portion 40 shown in FIG. 1 is indicated by a simple arc, but the transfer direction of the slurry that has entered the slurry inlet of the connecting portion 4 in the horizontal direction is changed to the vertical direction at the slurry outlet of the connecting portion 4. If it is, the form in the middle of the connection part 40 does not ask | require. For example, even if the connecting portion 40 changes the slurry transfer direction from the horizontal direction to the vertical direction, then changes the horizontal direction again and then changes to the vertical direction, the slurry outlet of the connecting portion 4 It suffices if the transfer direction of the slurry is changed to the vertical direction.

  As shown in FIG. 2, the connection portion 40 has a system (hereinafter referred to as “direct connection system”) in which the transport pipe 30 and the discharge pipe 50 are directly connected by elbow piping, L-shaped tube, T-shaped tube, or the like. The transport pipe 30 and the discharge pipe 50 are connected to each other via a slurry receiving hopper 401 or the like, and the transport pipe 30 and the discharge pipe 50 are not directly connected (hereinafter referred to as “indirect connection system”). )

  In the case of employing the indirect connection method, it is possible to prevent water from entering the connecting portion 4 and prevent water from entering the slurry when at least a part of the connecting portion 4 is exposed on the water surface. In general, a structure having a float 41 is used. When the above-described slurry receiving hopper 401 is employed as the indirect connection method, there is an effect that the slurry surface can be visually confirmed. Also in the direct connection method, it is possible to adopt a configuration in which at least a part of the coupling portion 4 is exposed on the water surface.

  In the case of using the slurry receiving hopper 401 in the indirect connection method, as shown in FIG. 2, the slurry receiving hopper 401 is disposed at the upper portion of the discharge pipe 50, and the base end of the discharge pipe 50 is disposed at the reduced diameter portion of the slurry receiving hopper 401. 52 is connected. The slurry transferred through the transport pipe 30 and the connecting portion 40 can be supplied to the diameter-enlarged portion side of the slurry receiving hopper 401. Although it does not specifically limit as a magnitude | size of the diameter expansion part of the slurry receiving hopper 401, Specifically, it can be set as internal dimensions 500 mm x 500 mm etc., for example. The material of the slurry receiving hopper 401 is not particularly limited, and specifically, for example, a steel plate (t = 4.5 mm) or the like can be used.

  When the indirect connection method is employed, the upstream connecting portion 4, the transport portion 3, and the slurry supply source are not connected directly to the transport pipe 30 and the discharge pipe 50 even when the discharge pipe 50 is clogged. 2 can be reduced. In the case of this embodiment, the timing when the slurry is buried and it becomes difficult to discharge the slurry from the discharge port 51 can be confirmed by the increase in the upper surface level of the slurry in the slurry receiving hopper 401.

  As shown in FIG. 2, the float 41 preferably has a function as a base for attaching the connecting portion 4 and the winding device 421.

  As shown in FIG. 1, since the float 41 has a buoyancy that causes the connecting portion 4 and the discharge portion 5 to float from the bottom 62, the connecting portion 4 and the discharge portion 5 leave the bottom 62, and thus tow by a boat or the like. Thus, the connecting portion 4 can move on the water surface 61 of the water surface landfill site 6. In addition, the anchor 43 and the float 41 placed on the water bottom 62 can be bound by the wire 44, and the connecting portion 4 can be prevented from rocking due to waves or the like. When moving the landfill point, for example, when using a steel anchor, the connecting portion 4 and the discharge portion 5 can be easily moved by lifting the anchor 43 from the water bottom 62. On the other hand, when the anchor 43 in which coal ash or the like is placed in the flexible container bag is used due to restrictions such as the waste sweeping method, the wire 44 connected to the anchor 43 is removed, and the connecting portion 4 and the discharging portion 5 are left with the anchor 32 remaining. Only the wire 44 may be moved.

  The discharge part 5 is a component for transferring the slurry whose transfer direction has been changed to a substantially vertical direction by the connecting part 4 in a substantially vertical direction and burying it from the water bottom 62, and includes a discharge pipe 50 and a discharge port (opening) 51. And have.

  A proximal end 52 of the discharge pipe 50 is connected to the connecting portion 40, and a discharge port 51 is provided at the distal end 53 of the discharge pipe 50. Further, the discharge port 51 is opened vertically downward.

  As shown in FIG. 8 (A), the discharge port 51 is disposed opposite to the bottom 62 of the landfill site at the beginning of landfill. When the landfill is advanced, as shown in FIG. 8 (B), the discharge port 51 is buried in coal ash or the like deposited on the water bottom 62. By arranging the discharge port 51 so as to face the bottom 62 or burying it in already buried coal ash, etc., it is possible to suppress diffusion of the coal ash into the water when it is released. The landfill density of coal ash, etc. can be improved.

  In FIG. 1, in order to hold the discharge port 51 at a predetermined depth, the length of the discharge pipe 50 is fixed and the connecting portion 4 is moved up and down, and the position of the connecting portion 4 is held and the discharge pipe 50 There is a method of expanding and contracting the length. In the latter method, when the discharge pipe 50 is expanded and contracted while a part of the connecting part 4 is floated on the water surface, it is possible for a person to visually confirm the state of the slurry flow at the connecting part 4. An effect is obtained.

  In the case of a method in which a part of the connecting portion 4 is kept floating on the water surface, the position of the discharge port 51 is retained by absorbing the perturbation of the water surface, and the discharge port 51 is moved up and down depending on the landfill depth of the slurry. Therefore, it is common to use a pipe having a stretchable structure such as a corrugated pipe or a resin tube having flexibility.

  As the discharge pipe 50 having a vertically expandable structure, a double pipe as shown in FIG. 4 can be used. By making the outer tube 502 and the inner tube 501 of the double tube slidable, it is possible to absorb the perturbation of the water surface that occurs during waves and stabilize the altitude position of the discharge port 51. In addition, the landfill is carried out in a state where the discharge port 51 is buried in the buried slurry, but the embedding depth of the discharge port 51 becomes deep and the slurry discharge amount from the discharge port 51 becomes equal to or less than a predetermined discharge amount. In this case, the outer tube 502 is gradually lifted upward by the lifting device 42, and the discharge of the slurry is recovered while holding the discharge port 51 at a predetermined depth in the slurry. Even if there is a gap of about 15 mm between the inner pipe 501 and the outer pipe 502, water trapping or slurry leakage at the time of slurry reclamation does not become a practical problem. It is preferable to make the gap as small as possible as long as there is no problem in sliding 501. Further, by providing a packing between the outer tube 502 and the inner tube 501 and sliding it, the water shielding property can be improved. When the discharge port 51 is installed in contact with the water bottom 62, even if a wave or the like occurs, the double pipe expands and contracts and the position variation of the discharge port 51 is reduced. Therefore, the position management of the discharge port 51 is easy. Become.

  The outlet 51 can be provided with a notch or the like. At the initial stage of slurry reclamation, even if the discharge port 51 is brought into contact with the water bottom 62, the slurry is discharged without any trouble due to the unevenness of the bottom of the water, but from the state where the pipe is simply cut, the wedge 51 is cut into the discharge port 51. By providing the notch, the slurry can be discharged more smoothly.

  The lifting device 42 moves the discharge port 51 up and down, and includes a wire 422 and a winding device 421 as shown in FIG.

  The wire 422 is connected to the discharge port 51, and the discharge port 51 is moved up and down by winding or lowering the wire 422 with a winding device 421 installed on a pedestal formed by the float 41.

In the case of a double tube, as shown in FIG. 4, the wire 422 is connected to the outer tube 502, and the wire 422 is wound or unwound by a winding device 421 installed on a pedestal formed by the float 41. The discharge port 51 connected to the outer tube 502 is moved up and down.
The position of the discharge port 51 during landfill can be changed by the lifting device 42 according to the height difference of the discharge port 51 from the water surface, the thickness of the slurry deposited above the discharge port 51, the concentration of the slurry, and the like. This adjusts the amount of slurry discharged and prevents clogging.

  The lifting device 42 shown in FIGS. 3 and 4 is an example, and the present invention is not limited to this. For example, the outer tube 502 can be moved up and down in the vertical direction by using a hydraulic device or a rack and pinion. Note that the drive mechanism for winding the wire 422 in the winding device 421 does not need to be provided in the connecting portion 4. For example, the driving mechanism is installed on land and the wire 422 is connected via the winding device 421 installed in the connecting portion 4. It is also possible to wind up or down.

  In the embodiment shown in FIG. 4, the outlet 51 is provided in the outer tube 502 and the inner tube 501 is connected to the connecting portion 4, but this is not limitative. The inner pipe 501 may be provided with the discharge port 51, the outer pipe 502 may be connected to the connecting portion 4, and the inner pipe 501 may be connected to the lifting device 42.

  Although the double tube structure has been described here, it may be a multiple tube structure made of three or more cylindrical members having different diameters, such as a triple tube, and capable of expanding and contracting in the axial direction.

  Furthermore, it can be set as the structure provided with the bypass pipe which has two or more connection parts 4 and connects between each connection part. A specific example in the case of the indirect connection method is shown in FIG. 5, but the same configuration can be adopted in the direct connection method.

  As shown in FIG. 5, a plurality of slurry receiving hoppers 401 are connected by a bypass pipe 402, so that the slurry receiving hopper 401 at the upper part of the clogged discharge pipe 50 is transferred to another slurry receiving hopper 401 and the discharge pipe 50. Allow the slurry to flow. With this configuration, even when the discharge pipe 50 at one location is clogged, it is not necessary to stop the slurry supply source 2, and the predetermined landfill can be continued with the other slurry receiving hopper 401 and the discharge pipe 50.

  By the way, when the slurry reclamation work for one day is completed, the transport pipe 30 is generally cleaned in order to prevent coal ash or the like from sticking. Therefore, as shown in FIG. 1, a cleaning water pipe (cleaning water supply path) 34 for supplying cleaning water and a cleaning pig from the base end side of the transport unit 3 is provided. Further, it is possible to adopt a configuration in which cleaning water is supplied from the slurry supply source 2.

  The floats 31 and 41 have a buoyancy that allows a device connected to the float 31 or 41 to float on the surface of the water, and plastic, metal, wooden, etc. can be used. The shape is generally a saddle type.

  The material of the anchors 32 and 43 is generally steel or concrete, but if steel or concrete cannot be used due to the regulations of the water surface landfill disposal method, the same material as the landfill material of the water surface landfill is biodegradable. Use one packed in a flexible container bag or a block made only of the material. As a result, even if the anchors 32 and / or 43 remain in the landfill site, it is possible to prevent a violation of the waste sweeping regulations.

  The wires 33 and 44 may be made of resin or metal having flexibility.

<The landfill method of the water surface landfill site>
Next, the operation method of the landfill apparatus 1 of this embodiment is demonstrated using FIG.

  In the discharge part 5 in the landfill method of the present invention, at the beginning of landfill, as shown in FIG. When the slurry is buried and the discharge port 51 is buried in the buried coal ash or the like, and the discharge amount of the slurry falls below a predetermined discharge amount, the discharge port 51 is pulled up to a predetermined position. The method of pulling up the discharge port includes a method of pulling up the connecting portion 4 with the length of the discharge tube 50 being constant, and a method of changing the length of the discharge tube 50 with at least a part of the connecting portion 4 floating on the water surface. There is. As the latter method, as shown in FIG. 8 (B), the range in which the discharge port 51 is buried in coal ash or the like already buried using the lifting device 42 installed in the connecting portion 4. And continue the slurry reclamation. By managing the position of the discharge port 51 in this way, it is possible to suppress the coal ash to be landed from diffusing into the water, and the landfill density of the coal ash and the like can be greatly improved.

  When the indirect connection method using the slurry receiving hopper 401 shown in FIG. 2 is adopted for the connecting portion 4, the clogging of the slurry can be detected by observing the state of the upper surface level of the slurry of the hopper 401. When the slurry supply amount is constant at a predetermined amount, when the upper surface level of the slurry of the hopper 401 rises, the discharge port 51 is lifted by the lifting device 42 so that the upper surface level of the slurry is below a certain level. adjust.

  Detection of the embedding depth of the discharge port 51 in the slurry is performed by the following method, for example. First, the distance between the connecting portion 4 and the discharge port 51 is measured from the length of the wire 422 of the lifting device 42 being unwound. The distance from the connecting part 4 to the surface of the coal ash or the like in which the outlet 51 is buried is measured by a sounding level system, and the distance between the connecting part 4 and the outlet 51 and the outlet 51 from the connecting part 4 is determined. From the difference from the distance to the surface of the buried coal ash etc., the embedding depth of the discharge port 51 in the coal ash etc. is calculated. In addition, when the slurry receiving hopper method is adopted, the discharge state of the landfill object from the discharge port 51 in the coal ash or the like is estimated by monitoring the upper surface level of the slurry in the hopper, and the landfill object The amount of deposition can be estimated.

  When the landfill of one landfill point is completed by the above landfill operation, the discharge unit 5 and the connecting unit 4 are towed by a boat or the like and moved to the next landfill point. At this time, since the distance from the slurry supply source 2 to the connecting portion 4 varies, the length of the transport portion 3 is adjusted according to the distance.

  In the direct connection method, when clogging occurs in the transport pipe 30, the connection section 40, or the discharge pipe 50, a pipe purge is performed.

When the discharge pipe 50 is clogged in the indirect connection method, the slurry charged into the slurry receiving hopper 401 exceeds the capacity of the slurry receiving hopper 401. In preparation for such a case, it is possible to cope with this by providing two or more slurry receiving hoppers 401 in the connecting portion 4. That is, as shown in FIG. 5, a plurality of slurry receiving hoppers 401 are connected by a bypass pipe 402, so that the slurry receiving hopper 401 and the discharging pipes from the slurry receiving hopper 401 above the clogging discharge pipe 50 are formed. 50 so that the slurry flows. With this configuration, even when the discharge pipe 50 is clogged, it is not necessary to stop the slurry supply source 2, and the predetermined landfill can be continued with the other slurry receiving hopper 401 and the discharge pipe 50.

  When the daily slurry landfill operation is completed, the transport pipe 30 is cleaned. In the case of the indirect connection method shown in FIG. 2, the cleaning water is discharged from the slurry supply source 2 to the slurry receiving hopper 401 through the transport pipe 30. A cleaning water pipe 34 that supplies the cleaning water directly to the transport pipe 30 may be provided separately. At this time, the opening for flowing the slurry to the discharge pipe 50 below the slurry receiving hopper 401 is closed with a lid, a closing ball or the like, or the discharge port 51 is lifted by the lifting device 42 and the discharge port 51 is already buried. By disposing it above the slurry surface, water does not flow into the already discharged part. As a result, it is possible to prevent the landfill density from being lowered by flowing and diffusing the cleaning water into the landfilled slurry. When blocking with a lid or a blocking ball, a separate drainage pipe is provided to discharge the wash water into the water.

As explained above, according to the landfill apparatus 1 of the present embodiment, the configuration of the horizontal transport path for transferring the slurry-like landfill object from the slurry supply source to an arbitrary landfill point of the water surface landfill site, and the horizontal transport path A vertical transfer path for transferring the landfill object transferred in the vertical direction, and the opening on the tip side of the vertical transfer path from which the slurry-like landfill object is discharged is the bottom of the landfill point. The landfill object can be buried in the landfill object facing or placed on the bottom of the water, so that the landfill object can be prevented from diffusing into the water when discharged from the opening. Can be increased.
Accordingly, since the water surface landfill disposal site can be used effectively, the life of the disposal site can be extended.

  Moreover, according to the landfill apparatus 1 of this embodiment, a slurry state can be confirmed by using an indirect connection method. Furthermore, when the slurry receiving hopper 401 is employed as the indirect connection method, there is an effect that the slurry surface can be visually confirmed. The timing at which it becomes difficult to discharge the slurry from the discharge port 51 when the slurry is buried can be confirmed by an increase in the upper surface level of the slurry in the slurry receiving hopper 401.

  Further, according to the landfill device 1 of the present embodiment, when a double pipe structure is adopted for the discharge pipe 50, the outer pipe 502 and the inner pipe 501 of the double pipe are slidable, so that during a wave, etc. It is possible to absorb the perturbation of the water surface that occurs in the water and stabilize the elevation position of the discharge port 51.

  Moreover, according to the landfill apparatus 1 of the present embodiment, the resistance at the time of movement of the transport pipe 30 is reduced by connecting the float 31 to the transport pipe 30 and floating the transport pipe 30 from the water bottom 62, and the transport section 3. It becomes possible to easily move the connecting part 4 and the discharge part 5 connected to the tip of the water to an arbitrary position of the water surface landfill site 6.

  Moreover, according to the landfill apparatus 1 of the present embodiment, when the discharge pipe 50 is clogged by having a configuration including the bypass pipes that have two or more connecting parts 4 and connect the connecting parts. The slurry can flow from the slurry receiving hopper 401 at the top of the discharge pipe 50 where the clogging has occurred to the other slurry receiving hopper 401 and the discharge pipe 50. With this configuration, even when the discharge pipe 50 at one location is clogged, it is not necessary to stop the slurry supply source 2, and the predetermined landfill can be continued with the other slurry receiving hopper 401 and the discharge pipe 50.

<Other embodiments>
Next, a landfill apparatus according to another embodiment to which the present invention is applied will be described.

FIG. 6 is a system diagram showing a configuration of a unit type water float (unit type water float) 300 that can float on the water surface of a water surface landfill disposal site used in this embodiment, and FIG. 7 shows the unit type water float 300 3. It is explanatory drawing of the transport part comprised by stand connection.
Since the slurry supply source 2, the connection part 4, and the discharge part 5 of this embodiment are the same as that of embodiment mentioned above, description is abbreviate | omitted and the different transport part 3 is demonstrated.

  As shown in FIG. 7, the transport unit in the landfill apparatus of the present embodiment includes a plurality of unit-type water floats 300 connected by flexible unit connection pipes 303, and an arbitrary landfill point and slurry in a water surface landfill site. It is comprised by providing between supply sources.

  As shown in FIG. 6, the unit-type water float 300 is formed by connecting a float 301 and a pedestal 304 with a connecting member 305 as a foundation, and a unit-type transport pipe 302 is installed on the foundation. The unit-type water float 300 is connected to the unit-type transport pipe 302 by a unit connection pipe (pipe unit) 303, and the unit connection pipe 303 moves the unit-type water float 300 vertically and horizontally. Use a flexible tube to absorb. The unit type water float 300 can be held at a predetermined position on the water by connecting the wire 307 to the anchor 306. The size of the unit type water float 300 is adjusted and manufactured with a size that is easy to be transported on the ground and moved on the water, for example, with a basic unit of 12.65 m × 3.30 m. When the distance between the slurry supply source 2 and the discharge unit 4 exceeds 12.65 m, the slurry is landfilled by connecting a plurality of basic units and extending the transport distance to the landfill point in the water surface landfill site 6. . An expanded metal, a punching metal, or the like can be used for the pedestal 304. The connecting member 305 is generally L-shaped steel or H-shaped steel, but is not limited thereto.

  The float 301 has a buoyancy that causes a device connected to the float to float on the surface of the water, and plastic, metal, wooden, etc. can be used, but plastic is generally used, and the shape is A saddle type is common.

  The material of the anchor 306 is generally steel or concrete, but if steel or concrete cannot be used due to landfill site regulations, the same material as the landfill material in the landfill site is packed in a biodegradable flexible container bag. Or use a block made only of the material. As a result, even if the anchor 306 remains in the landfill site, it does not violate the regulations of the waste disposal method.

  The wire 307 can be made of resin or metal having flexibility.

  As described above, according to the landfill apparatus of another embodiment, since the transport unit 3 can be manufactured by connecting basic units having the same shape, even if the landfill point is far from the slurry supply source 2. By connecting multiple basic units, it can be extended to any landfill site. That is, landfilling at an arbitrary position of a vast water surface disposal site can be achieved. In addition, by making the units of the same shape, it is possible to reduce manufacturing costs such as design costs and material procurement costs, and a cost reduction effect can be obtained.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

1 Landfill equipment at a landfill site 2 Slurry supply source 3 Transport section (horizontal transport pipe route)
30 Transport pipe 31 Float 32 Anchor 33 Wire 34 Wash water piping (wash water supply route)
300 Unit Type Water Float (Unit Type Water Float)
301 Float 302 Unit Transport Pipe 303 Unit Connection Pipe (Piping Unit)
304 pedestal 305 connecting member 306 anchor 307 wire 4 connecting portion 40 connecting portion 401 slurry receiving hopper 402 bypass pipe 41 float 42 lifting device (lifting means)
421 Winding device 422 Wire 43 Anchor 44 Wire 5 Discharge unit (vertical transport path)
50 discharge pipe 501 inner pipe 502 outer pipe 51 discharge port (opening)
52 Discharge pipe base 53 Discharge pipe tip 6 Water surface landfill disposal site 61 Water surface 62 Water bottom 63 Already landfilled coal ash, etc. 64 Land 65 Revetment of disposal site

Claims (19)

A landfill device for landfilling slurry-like landfill objects at any landfill site in a water surface landfill site,
A horizontal transfer path for transferring a slurry-like landfill object from a slurry supply source to the landfill point;
At the landfill point, a connecting part that changes the transfer direction of the landfill object transferred by the horizontal transfer path to a vertical direction,
A base end side is connected to the connecting portion, and includes a vertical conveyance path for transferring the landfill object transferred from the connecting portion in a vertical direction,
A reclamation device for a water surface landfill disposal site having an opening on the front end side of the vertical conveyance path, the opening being disposed opposite to the bottom of the landfill point or burying in the landfill object deposited on the bottom of the water . The landfill apparatus for a water surface landfill site according to claim 1, wherein the horizontal transport path and the vertical transport path are not directly connected. The landfill apparatus for a water surface landfill site according to claim 1 or 2, wherein at least a part of the connecting portion is exposed on the water surface.   The landfill device for a water surface landfill site according to any one of claims 1 to 3, wherein the vertical conveyance path has a structure that is vertically stretchable.   The landfill apparatus for a water surface landfill site according to claim 4, wherein the vertically stretchable structure is a double tube structure having an inner tube and an outer tube.   The base end of the inner pipe is connected to the connecting portion, the opening is provided on the distal end side of the outer pipe, and the outer pipe slides in the vertical direction with respect to the inner pipe. Landfill equipment for water surface landfill sites described in 1.   The landfill apparatus for a water surface landfill site according to claim 6, wherein the connecting portion includes a lifting means for the outer pipe.   The base end of the outer tube is connected to the connecting portion, the opening is provided on the distal end side of the inner tube, and the inner tube slides in the vertical direction with respect to the outer tube. Landfill equipment for water surface landfill sites described in 1.   The landfill apparatus for a water surface landfill site according to claim 8, wherein the connecting part has a lifting means for the inner pipe. The connecting portion has a hopper;
The base end of the vertical conveyance path is connected to the reduced diameter portion of the hopper,
The landfill apparatus for a water surface landfill disposal site according to any one of claims 3 to 9, wherein the landfill object to be transported by the horizontal transport path can be supplied to the enlarged diameter portion side of the hopper.   The landfill device for a water surface landfill site according to any one of claims 3 to 10, wherein the connecting part has a moving means for moving on the water surface of the water surface landfill site. A plurality of unit-type water floats that can float on the water surface of the water surface landfill site,
The plurality of water floats connected so as to have flexibility are provided between an arbitrary landfill point of the water surface landfill site and the slurry supply source. The landfill device for the water surface landfill site according to the item. The horizontal conveyance path is configured such that a plurality of piping units are connected so as to have flexibility,
The landfill device for a water surface landfill site according to claim 12, wherein the piping units are respectively fixed to the water float. Two or more of the connecting portions;
The landfill apparatus of the water surface landfill disposal site according to any one of claims 3 to 13, comprising a bypass path communicating between the connecting portions.   The landfill apparatus for a water surface landfill site according to any one of claims 1 to 14, further comprising a cleaning water supply path on a proximal end side of the horizontal conveyance path.   The landfill apparatus for a water surface landfill site according to any one of claims 1 to 15, wherein the landfill object is slurry-like coal ash. A landfill method for landfilling a slurry-like landfill object at an arbitrary landfill site in a water surface landfill site,
A slurry-like landfill object is transferred from a slurry supply source to an arbitrary landfill point, and at the landfill point, the transfer direction of the landfill object is changed to a vertical direction,
When starting landfill, discharge the landfill object from the position close to the bottom of the landfill point toward the bottom,
After the landfill object is deposited on the water bottom, the landfill disposal method for a water surface landfill disposal site, wherein the landfill object is discharged toward the water bottom from a position embedded in the deposited landfill object.   A landfill method for a water surface landfill disposal site that adjusts a discharge height of the landfill object according to an accumulation amount of the landfill object. A landfill method for a water surface landfill site, wherein the amount of deposition is estimated from a vertical transfer state of the landfill object.