JPH05170293A - Excremental residue carrying apparatus - Google Patents

Abstract

PURPOSE: To facilitate a transport as well as dehydrate the deposit by a small drive power using the piping porous tubes in the pipe following the reciprocating motion of the piston rod. CONSTITUTION: When an actuator 3 reciprocates a piston rod 2b, the deposit a in a hopper 1 is injected in a cylinder 2a. And, when the piston rod 2b is reciprocated, the deposit a is forced out of the cylinder 2a. Further, the forced out deposit a is forced out into a pipe 4 passing through the check valve. In this case, a porous tube 10 having many small holes 10a is piped around the exit of the pipe 4. The deposit a in the condition of a high moisture and a low physical resistance is sent through the pipe 4 by pressure. Thereby, making use of the sending-pressure, the moisture in the deposit a is squeezed out of many holes of the porous tube 10 to flow in a bucket, thereby facilitating a dehydration and a transport of the deposit a by a small drive power.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for transporting residue generated by a screen device provided in a sewage treatment facility or other sewage treatment facilities to a residue treatment place such as an incinerator, and more particularly to dehydration. Regarding those having functions.

[0002]

2. Description of the Related Art Conventionally, a belt conveyor is known as a residue transfer device, but since the residue is exposed and transferred, the problem of odor arises. For this reason, the residue is transported after pretreatment such as washing with water. Further, since conveyance by a belt conveyor is unsuitable for long-distance conveyance, a residue transfer device has been proposed in which a reciprocating pump such as a piston pump or a plunger pump and a pipe are used for pressure feeding.

[0003]

However, the reciprocating pump according to the above-mentioned proposal has a feature that it can be transported for a long distance in a sealed state through a pipe. It is preferable to convey the film with a low resistance in a state of high water content. However, if it is transferred to a residue treatment place such as an incinerator with a high water content, dehydration treatment is required at that place, and if it is incinerated as it is, the incineration treatment efficiency decreases. Therefore, in order to avoid such an inconvenience, when trying to convey the residue having a low water content, a new problem arises that the driving power of the piston rod (hereinafter, the plunger and the piston rod) becomes large.

The present invention has been made in order to solve the above-mentioned drawbacks, and an object thereof is to provide a residue transfer device which can transfer residues with a small driving power and can transfer residues with a small dehydration rate. is there.

[0005]

In order to achieve the above object, the device of the present invention is a residue transfer device for pressure-transferring and transferring residue into a pipe by the reciprocating motion of a piston rod. It is characterized in that a perforated tube having a large number of small holes that allow the water in the residue to pass therethrough without passing through the residue is provided. Further, the porous tube is characterized in that it is provided near the outlet side of the pipe.

[0006]

In the above structure, when the piston rod moves forward and the residue is pumped into the pipe, the residue remains in the middle of movement.
Moisture in the residue flows out through the small holes of the perforated pipe, and the dehydrated residue is discharged through the pipe.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of an apparatus according to an embodiment. 1 is a hopper into which the residue is put, and a piston pump 2 is provided in the lower part of the hopper. The opening provided in the upper wall of the cylinder 2a of the piston pump 2 is communicated with the lower portion of the hopper 1, and when the piston rod 2b moves back (the position indicated by the solid line in FIG. 1), a portion of the residue a in the hopper is lost. The part is configured to be inserted into the cylinder 2a by gravity.

The piston rod 2b is constructed so that it can be reciprocated with a predetermined stroke by a hydraulic actuator 3 like a well-known piston pump.

At the end of the cylinder 2a opposite to the side where the actuator 3 is provided, a pipe 4 for transferring the residue a to a residue treatment place such as an incinerator is connected, and the connection is made. A non-return mechanism 5 is provided in the part, and a perforated pipe 10 is provided near the outlet side of the pipe 4.

The perforated pipe 10 has a predetermined length and is in the shape of a pipe having the same shape as that of the pipe 4, around which
A large number of small holes 10a, 10a, ... Which allow the moisture in the residue not to pass through are provided.

The non-return mechanism 5 prevents back flow of the residue when the piston rod 2b is returned, and the applicant has proposed a combination of a plurality of leaf springs separately proposed on the same date as the present application. A non-return mechanism can be adopted. In addition, reference numeral 11 in the drawing denotes a water receiver provided below the perforated pipe 10.

In the apparatus of the present embodiment, when the piston rod 2b is returned by the actuator 3, the hopper 1
If a part of the inner residue is put into the cylinder 2a and then the piston rod 2a is moved forward, the residue a is pushed out to the check mechanism 5 side. The extruded residue a passes through the non-return mechanism 5 and is extruded into the pipe 4, and when the piston rod 2b returns again, the non-return mechanism 5 side becomes a negative pressure in the pipe 4. However, since the passage is closed by the action of the check mechanism 5, the residue a does not flow back. In this way, the residue a can be transported to the destination.

When the residue a is pumped through the pipe 4 and reaches the position of the perforated pipe 10 provided on the discharge side of the pipe 4, the water in the residue a is squeezed out from the small holes 10a by the pressure of the pumping. It flows out into the water receiver 11. Therefore,
The residue a that has passed through the perforated tube 10 becomes dehydrated residue.
The movement of the dehydrated residue in the pipe 4 thereafter is
Since the moving distance is short, the driving power of the actuator 3 is not increased.

As described above, in the apparatus of this embodiment,
Since the perforated pipe 10 is provided on the outlet side of the pipe 4, the perforated pipe 1
Since the water content is high up to 0, the resistance can be reduced and the residue can be conveyed, and the residue a having a low water content dehydrated by the perforated pipe 10 can be discharged from the outlet of the pipe 4. You can

[0015]

In the apparatus of the present invention, since the pipe is provided with the perforated pipe, it is possible to remove the dewatered residue from the pipe through the perforated pipe and convey it to the residue treatment place. Further, when the perforated pipe is provided near the outlet side of the pipe, the residue can be conveyed to the perforated pipe in a state of high water content and low resistance, and the driving power of the piston rod can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an apparatus according to an embodiment.

[Explanation of symbols]

 2b Piston rod 4 Pipe 10 Perforated pipe 10a Small hole

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical display location // B03B 5/00 Z 8925-4D (71) Applicant 591071805 Lhasa Corporation Nihonbashi, Chuo-ku, Tokyo Kayabacho 2-9-4 (72) Inventor Kozo Goto 1 at 620 Kurono, Gifu City, Gifu Prefecture (72) Inventor Motohiko Ishino 1-11-20 Jokita, Kakegawa City, Shizuoka Prefecture Inventor Karl Schlecht Germany Federal Republic of D-7447 Aichtal 2, Max-Ait Strasse No. 10 Putzmeister Werk Maschinenfabrik Geembehr (72) Inventor Hideo Hideo 1 1636, Bingo, Kasukabe City, Saitama Prefecture

Claims (2)

[Claims] 1. A residue transfer device for conveying residue by pressure feeding into a pipe by the reciprocating motion of a piston rod, and a large number of parts which do not allow residue to pass through the pipe and allow water in residue to pass therethrough. An apparatus for transporting residue, which is characterized in that a perforated tube having a small hole is provided. 2. The residue transfer apparatus according to claim 1, wherein the perforated pipe is provided near the outlet side of the pipe.