JP-2026074537-A - Transfer device and transfer method

JP2026074537AJP 2026074537 AJP2026074537 AJP 2026074537AJP-2026074537-A

Abstract

[Problem] To provide a miniaturized transfer device and transfer method that suppresses the leakage of the transferred material. [Solution] The transfer device 1 comprises a water level adjustment tank 21, a transported material supply tank 22, a water supply means 3 for supplying liquid to the water level adjustment tank 21, a transported material supply means 4 for supplying transported material to the transported material supply tank 22, a connecting part 24 that connects the water level adjustment tank 21 and the transported material supply tank 22 so that liquid can flow from the water level adjustment tank 21 to the transported material supply tank 22, an upper overflow pipe 25 and a lower overflow pipe 26 provided in the water level adjustment tank 21 for draining liquid above a predetermined water level from the water level adjustment tank 21, and a transfer means 5 for transferring the transported material supplied to the transported material supply tank 22 and the liquid that has flowed into the transported material supply tank 22 through the connecting part 24 to the outside of the transported material supply tank 22. [Selection Diagram] Figure 1

Inventors

大原利隆
佐々木大成
川上直哉

Assignees

アクアインテック株式会社

Dates

Publication Date: 20260507
Application Date: 20241021

Claims (6)

A water level adjustment tank, A transported material supply tank, A liquid supply means for supplying liquid to the water level adjustment tank, A means for supplying objects to be transferred to the object to be transferred supply tank, A connecting portion is provided to connect the water level adjustment tank and the material to be transferred, so that liquid can flow from the water level adjustment tank to the material to be transferred supply tank. The water level adjustment tank is provided with an overflow section that drains liquid above a predetermined water level from the water level adjustment tank, A transfer device characterized by comprising a transfer means for transferring the object to be transferred supplied to the object to be transferred supply tank and the liquid that flows into the object to be transferred supply tank through the connecting portion to the outside of the object to be transferred supply tank.
The transfer device according to claim 1, characterized in that the transfer means transfers the material to be transferred and the liquid flowing into the material to be transferred tank from a downstream position in the direction of liquid inflow through the connecting portion into the material to be transferred supply tank.
The overflow section is provided in the water level adjustment tank in multiple locations, corresponding to the multiple water levels in the water level adjustment tank. The transfer device according to claim 1, characterized in that at least the lower overflow section corresponding to the lowest water level among the overflow sections has a switching means for switching whether or not to drain liquid from the lower overflow section.
The transfer device according to any one of claims 1 to 3, characterized in that the liquid supply means supplies an amount of liquid to the water level adjustment tank that is equal to or greater than the amount of liquid transferred per unit time by the transfer means.
A transfer device transfer method comprising: a water level adjustment tank; a transport material supply tank; a liquid supply means for supplying liquid to the water level adjustment tank; a transport material supply means for supplying transport material to the transport material supply tank; a connecting part that connects the water level adjustment tank and the transport material supply tank so that liquid can flow from the water level adjustment tank to the transport material supply tank; an overflow part for draining the liquid from the water level adjustment tank; and a transfer means for transferring the transport material supplied to the transport material supply tank and the liquid that has flowed into the transport material supply tank through the connecting part to the outside of the transport material supply tank, wherein A liquid supply start step in which the liquid supply means starts supplying liquid to the water level adjustment tank, A transfer start step in which the transfer by the transfer means is initiated, A transfer method characterized by having a supply transfer step which, after the liquid supply start step and the transfer start step, starts supplying the material to be transferred to the material to be transferred supply tank by the material to be transferred supply means, thereby performing the supply of liquid to the water level adjustment tank by the liquid supply means, the supply of the material to be transferred to the material to be transferred supply tank by the material to be transferred supply means, and the transfer of the material to be transferred and liquid in the material to be transferred supply tank to the outside of the material to be transferred supply tank.
The supply transfer process is performed when the water level in the water level adjustment tank is at the first water level. The transfer method according to claim 5, characterized in that it has a low-water-level supply transfer step in which, when the water level in the water level adjustment tank is at a second water level lower than the first water level, the liquid supply means supplies liquid to the water level adjustment tank and transfers the objects to be transferred and the liquid in the objects to be transferred supply tank to the outside of the objects to be transferred supply tank.

Description

This invention relates to a transfer device and a transfer method for transferring objects to be transferred. In sewage treatment plants, materials such as sand, sludge, or scum removed from wastewater are stored in underground storage tanks and then transported to the surface using transfer equipment. Traditionally, transfer equipment using conveyors and skip hoists has been employed to move these materials. However, conveyors and skip hoists have problems such as odor leakage and the hazard of exposed moving parts. To solve this problem, a transfer device that transports the material to be transferred through pipes has been proposed (see, for example, Patent Document 1). This transfer device in Patent Document 1 stores the material, which has been cut by a crusher, in a storage tank. Water is supplied while the material is agitated to create a slurry, which is then sent out of the storage tank by a transfer pump. Compared to conventional conveyor and skip hoist transfer devices, this transfer device in Patent Document 1 has advantages such as less risk of odor leakage and lower risk due to fewer moving parts. Furthermore, by using a transfer device that transports the material through pipes, as in Patent Document 1, it is also possible to transport liquids such as sewage and contaminated water as the material to be transferred. Japanese Utility Model Publication No. 4-125247 This is a schematic diagram illustrating a transfer device.Figure 1 shows a flowchart illustrating the transfer operation of the transfer device.This is a schematic diagram similar to Figure 1, showing the water level adjustment tank filled with water up to the first water level.This is a schematic diagram similar to Figure 1, which shows the transfer device operating at the first water level.This is a schematic diagram similar to Figure 1, showing the transfer device operating at the second water level.This flowchart shows the transfer operation in the first modified transfer device, which operates without emptying the storage tank.This is a schematic diagram similar to Figure 1, illustrating the transfer device of the second modified example.This is a schematic diagram similar to Figure 1, illustrating the transfer device of the third modified example.This is a schematic diagram similar to Figure 1, showing how the connection position of the transfer pipe is changed.This is a schematic diagram similar to Figure 1, which schematically shows the transfer device of the second embodiment. The embodiments of the present invention will be described below with reference to the drawings. The following description of embodiments will focus on a transfer device 1 that transfers sludge, which is an example of a material to be transferred. Figure 1 is a schematic diagram illustrating the transfer device 1. As shown in Figure 1, the transfer device 1 comprises a storage tank 2, a water supply means 3, a means 4 for supplying the material to be transferred, and a transfer means 5. Figure 1 also shows a solid-liquid separation tank 91 and a solid-liquid separator 92, which are the destinations to which the sludge is transferred by the transfer device 1, a hopper 93 for receiving the sludge separated from the water, and a truck T for loading and transporting the sludge discharged from the hopper 93. The storage tank 2 is installed underground and has a box-like shape with an open top. The inside of the storage tank 2 is divided into a water level adjustment tank 21 and a material to be transferred supply tank 22 by a partition plate 23. This partition plate 23 is an example of a partition member. The lower part of the partition plate 23 is bent in a V-shape so that it is positioned towards the material to be transferred supply tank 22 as it goes downwards. The lower end 23A of the partition plate 23 is slightly separated from the tank bottom surface 2A, and a gap is formed between them. This gap between the tank bottom surface 2A and the lower end 23A of the partition plate 23 becomes a connecting part 24 that connects the water level adjustment tank 21 and the material to be transferred supply tank 22. The size of the gap in the connecting part 24 is set to allow water to flow from the water level adjustment tank 21 to the material to be transferred supply tank 22, and to a size that causes a pressure loss. The connecting part 24 may be configured so that the size of this gap can be varied. This allows for setting the optimal gap according to the type of material being transferred, the amount of material being transferred, and the amount of water supplied to the water level adjustment tank 21. The water level adjustment tank 21 is equipped with an upper overflow pipe 25, a lower overflow pipe 26, and a drain pipe 27. The upper overflow pipe 25 is connected near the upper end of the water level adjustment tank 21. This upper overflow pipe 25 corresponds to an example of an overflow section. Water is supplied to the water level adjustment tank 21 fr