JP2005200202A - Pumping device of wet material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pumping device of a wet material enabling a reduction in installation space, installation cost, and running cost. <P>SOLUTION: This piston cylinder type pumping device for pumping the wet material into a tube is formed so that the driving of a piston for pumping the wet material 11 can be performed by using a hydraulic cylinder 3 having a cylinder 3c, a hydraulic pump 3f, a drive device 3e for the hydraulic pump 3f and an oil tank 3g formed integrally with each other. Also, the connection part 7 of the hydraulic cylinder 3 to the piston 2 for pumping the wet material 11 is desirably be formed to be detachable in a single operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention particularly relates to a pumping device suitable for pumping water-containing materials such as sieve residue, sludge, scum, or a mixture thereof generated at a sewage pump station or a sewage treatment plant.

  In sewage pumping stations and the like, wastes such as plastic, hair, leaves, and wood fragments in the inflow raw water are removed with a dust remover in advance and sent to the treatment process. The separated matter by the dust remover or the like is called a sieve. The sieve residue contains a lot of water, and is eventually disposed of in landfill or incinerated in many cases.

  Conventionally, the sieves separated by the dust remover etc. have been transported horizontally and vertically by case conveyors, belt conveyors, etc. to the place where the sieve storage facilities are located, but a large space is required for conveyor installation. In addition, there is a problem that moisture scatters around the conveyor and that the odor is scattered outside because the conveyor is not sealed.

  On the other hand, in order to prevent the scattering of moisture and the external scattering of bad odor, for example, a method of pumping the sieve residue in a pipe using a piston / cylinder type pumping device is conceivable (for example, see Patent Document 1). In such a piston / cylinder type pressure feeding device, a method of driving a piston of a pressure feeding pump constituting the pressure feeding device by hydraulic pressure is generally used.

In the piston-cylinder type pressure feeding device, when the piston of the pressure feeding pump constituting the pressure feeding device is driven by hydraulic pressure, generally, a hydraulic pump provided separately from the pressure feeding pump, a drive motor for the hydraulic pump, and It is necessary to connect a hydraulic unit composed of an oil tank or the like and the pressure pump with high-pressure hydraulic piping.
JP 2001-293495 A

  However, there are the following problems when the hydraulic unit is provided separately.

  That is, the hydraulic unit occupies a volume comparable to the size of the main body of the pumping pump, and a large installation space is required for the entire pumping device including the pumping pump and the hydraulic unit. In addition, it is necessary to connect the hydraulic unit and the pressure feed pump with high-pressure hydraulic piping, which increases installation costs such as work costs and material costs associated with piping construction. Furthermore, the piping may be damaged due to physical or chemical damage, and troubles such as oil leakage may occur, increasing the running cost for maintenance and repair.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a water-containing pressure feeding device capable of reducing the installation cost while reducing the installation space and reducing the installation cost. And

The above problems are solved by the following invention.
[1] A piston-cylinder type pumping device for pumping water-containing material into a pipe,
A hydraulic pump comprising a cylinder, a hydraulic pump, a hydraulic pump driving device, and an oil tank integrally configured to drive a piston for pumping the hydrous material. apparatus.
[2] The water feeding device according to [1], wherein the connecting portion between the hydraulic cylinder and the piston for pumping the water containing material has a structure that can be attached and detached with one touch.

  ADVANTAGE OF THE INVENTION According to this invention, the pumping apparatus of the hydrated material which can aim at the reduction of a running cost while aiming at the compactization of installation space and reduction of installation cost is provided.

  Hereinafter, an example of the best mode for carrying out the present invention will be described.

  FIG. 1 is a schematic configuration diagram showing an embodiment of a piston / cylinder type pressure feeding device according to the present invention. A piston / cylinder type pressure feeding device 10 shown in FIG. 1 includes a hopper 5 into which a hydrated material 11 is charged, and a pressure feeding cylinder having a pressured piston 2 for pushing out the hydrated material 11 charged into the hopper 5 into a pipe 12. 1. A hydraulic cylinder 3 for driving the pressure feed piston 2 and a gate valve 4 for shutting off the pressure feed cylinder 1 and the pipe 12 are provided, for example, disposed on a common base 10a.

  The gate valve 4 opens and closes in conjunction with the piston 2 to prevent the water-containing material 11 and the water contained in the water-containing material 11 from flowing backward, and at the same time presses the water-containing material 11 when the water-containing material 11 is pushed into the pipe 12. It also has a function to provide a reaction force. The hopper 5 is preferably provided with a pushing device (not shown). The pushing device automatically operates when the hydrated material 11 is raised in the hopper 5, for example, when a bridge is generated, and the normal operation can be maintained by forcibly pushing the hydrated material 11 into the pumping cylinder 1.

  In FIG. 1, the hydrated material 11 put into the hopper 5 is pushed out into the pipe 12 by the pressure feed piston 2, is pumped through the pipe 12, and is transported to a storage facility (not shown) as a transport destination. . The pipe 12 is connected to the pressure feeding cylinder 1 by, for example, a flange 8 or the like. In addition, it cannot be overemphasized that the conveyance destination of the hydrated material 11 is not restricted to the said storage equipment.

  The hydraulic cylinder 3 is provided with a rod 3a, one end of which is connected to the pumping piston 2 and transmitting the thrust generated by the hydraulic cylinder 3 to the pumping piston 2, and a piston 3b connected to the other end of the rod 3a. Cylinder 3c, an oil tank 3g for storing hydraulic oil as a force transmission medium, a hydraulic pump 3f for sending the hydraulic oil, a drive device 3e for the hydraulic pump 3f, and a control device for controlling the drive device 3e. And a controller 3d.

  Here, at least the cylinder 3c, the oil tank 3g, the hydraulic pump 3f, and the drive device 3e constituting the hydraulic cylinder 3 are integrally configured. As the driving device 3e, for example, an AC servo motor or the like can be used. The controller 3d for controlling the drive device 3e can be provided separately from the hydraulic cylinder 3. However, from the viewpoint of making the device compact, the cylinder 3c, the oil tank 3g, the hydraulic pump 3f, the drive It is preferable to form a unit with the device 3e. Further, the cylinder 3c is preferably provided with a displacement detector 3h for detecting the displacement of the piston 3b, and the signal of the displacement detector 3h is taken into the controller 3d and used as the drive device 3e. The rotation direction, rotation speed, current value, etc. are controlled. The hydraulic pump 3f is preferably a hydraulic gear pump that can rotate in both directions.

  Moreover, it is preferable that the connection part 7 of the rod 3a and the pressure feed piston 2 has a one-touch detachable structure, for example, a one-touch type joint or a one-touch type coupler.

  FIG. 2 shows an example of a schematic configuration of the hydraulic control system.

In the piston / cylinder type pressure feeding device according to the present invention, as described above, at least the cylinder 3c, the oil tank 3g, the hydraulic pump 3f, and the drive device 3e constituting the hydraulic cylinder 3 are integrally configured. Thus, the following effects are obtained.
(1) The integrated configuration eliminates the need to install a separate hydraulic unit for driving the piston, making it possible to achieve a compact installation space as a whole and greatly improving the degree of freedom when installing this pumping device. To do.
(2) The integral configuration eliminates the need for a long hydraulic pipe for connecting a separately installed piston drive hydraulic unit and a hydraulic cylinder, and eliminates the need for construction and inspection of the pipe. Costs related to installation and maintenance can be greatly reduced.
(3) The integral configuration eliminates the need for a hydraulic switching valve and a long hydraulic pipe that connects the separately installed hydraulic unit and the hydraulic cylinder, which is necessary when using a separate hydraulic unit, resulting in energy loss. Can be minimized. Furthermore, by using a servo motor as the drive device, it is possible to operate the hydraulic pump only when necessary, reducing running costs and noise due to energy saving compared to a separate hydraulic unit that requires constant operation. It is possible to suppress the occurrence.
(4) By using an integrated configuration, the amount of hydraulic oil can be greatly reduced to 1/10 to 1/20 compared to when using a separate hydraulic unit. The amount of waste oil to be reduced can be greatly reduced, and the running cost can be reduced by reducing waste oil treatment costs, and the load on the environment can be greatly reduced.
(5) For example, even when it is necessary to replace the hydraulic cylinder, it can be easily replaced by anyone and the workability can be greatly improved.
(6) Since the apparatus configuration can be made compact and simple, there are few failures, etc., maintenance and management are facilitated, and maintainability is improved.

1 is a schematic configuration diagram showing an embodiment of a piston / cylinder type pressure feeding device according to the present invention. It is a figure which shows an example of schematic structure of the hydraulic control system which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pressure feed cylinder 2 Pressure feed piston 3 Hydraulic cylinder 3a Rod 3b Piston 3c Cylinder 3d Controller 3e Drive device 3f Hydraulic pump 3g Oil tank 3h Displacement detector 4 Gate valve 5 Hopper 7 Connection part 8 Flange 10 Pressure feed 10a Common base 11 Water content 12 Piping

Claims (2)

A piston / cylinder type pumping device for pumping water-containing material into piping,
A hydraulic pump comprising a cylinder, a hydraulic pump, a hydraulic pump driving device, and an oil tank integrally configured to drive a piston for pumping the hydrous material. apparatus.   The water feeding device according to claim 1, wherein a connecting portion between the hydraulic cylinder and a piston for pumping the water containing material has a one-touch detachable structure.

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