JP3210693B2 - Screen residue bagging device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for packing screen residue, which is dewatered under pressure from screen water collected and recovered from a water channel of a sewage treatment plant, a pumping station or the like, and then bagged by a fixed amount. .

[0002]

2. Description of the Related Art In a sewage treatment plant, a pumping station, and the like, solids mixed in sewage are separated from sewage, and the solids and sewage are separately treated. This solid is generally called a screen residue, and is collected from the wastewater by being scooped and collected by a dust remover.
In this state, it cannot be dumped, incinerated, or carried out to the dumping position. For this reason, the collected screen residue is dehydrated to a required moisture content. A device for dewatering the screen residue is disclosed in Japanese Patent Publication No. Sho 57-43049,
There is one disclosed in Japanese Patent No. 7118. After dewatering, the dewatering device pushes the pipe upwards from below into a pipe with an ascending gradient and transports it to a predetermined position, and since the pipe is almost sealed, the odor of the screen residue is scattered in all directions. Can be prevented.

[0003]

However, even if the screen residue is dewatered and conveyed by the action of a pressurized dewatering piston in a sealed conveying pipe, it is stored in a hopper, then loaded on a truck, etc., and incinerated or dumped. Because it is transported to the place, when loading and transporting to this truck etc., the dehydrated screen residue is also open to the atmosphere, so it may scatter,
Alternatively, the odor is scattered in all directions.

[0004] The present invention dehydrates the screen residue after recovery,
An object of the present invention is to convey it directly in a pipeline, directly pack it in the pipeline, and to easily carry out the next transportation, incineration and dumping.

[0005]

Means for Solving the Problems To achieve the above object,
Therefore, the screen residue bagging device of the present invention uses
Pressurized dewatering means for clean residue and connected to this pressurizing means
And a pipe for transfer provided near the end of the pipe.
In addition, the end of the line where the piston is turned into a straight line by the cylinder
And the dewatered screen residue transported through the pipeline
Pushing device to push out and dewatering conveyed in the tube
Same as the above-mentioned pushing device to discharge the screen residue quantitatively
A shutter that opens and closes
After putting the screen residue directly into the bag, close the mouth of the bag.
And a bag closing means for sealing and closing.

[0006]

After the screen residue collected by the sewage treatment plant or the like is washed, the screen residue is subjected to a desired dehydration by a pressurized dehydrator using a piston. Thereafter, the transfer is carried out by pushing up the inside of the transfer line connected to the pressurized dehydration device by the pressing force of the piston, and the piston is moved by the cylinder disposed near the end of the transfer line. It becomes a straight pipe
The dewatering switch that is inserted into the end of the pipe
Pushing device to push clean residue and pipe inside
Indentation to discharge the sent dewatered screen residue in a fixed amount
A fixed-volume dewatered screen residue is discharged from the pipeline by a shutter that opens and closes in synchronization with the device . Since a bag is provided at the end of the conduit, the dewatered screen residue is directly introduced into the bag from the conduit. After the metering, the mouth of the bag is sealed and closed to complete the bag filling. As a result, since the screen residue is dewatered and directly bagged without being exposed to the outside air by a fixed amount, scattering of the odor is prevented, and sanitary treatment can be performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiment. The screen residue 1 which is scooped and collected by a dust remover or the like from a water channel of a sewage treatment plant, a pumping station or the like is continuously or intermittently supplied to the crushing and washing device 3 via the conveyor 2,
The water is supplied to the pressurized dewatering device 4 disposed below the crushing and cleaning device 3. The crushing and washing device 3 is provided at a position below the upper end of the conveyor 2 and is provided above the pressure dewatering device 4 so as to serve also as a hopper so that the screen residue can be easily introduced.

In the crushing and cleaning device 3, a press plate 32 and a roller 33 are opposed to each other in a casing 31, and the roller 33 is rotated so that the press plate 32 is
3 is pressed against the roller 3 at a required pressure, and washing water is jetted at a required high pressure toward the outer peripheral surface of the roller or between the roller and the press plate to wash dirt.

As a result, the casing 31 is moved from the conveyor 2 to the casing 31.
The collection screen residue 1 put into the inside is a press plate 3
The uncrushed waste in the screen residue is crushed and washed at a high pressure by the rotation of the roller 33 and the pressing force of the press plate 32 against the roller. Wash with water.

The pressurized dewatering device 4 includes a hydraulic cylinder piston (or screw) 41 for squeezing and dewatering the screen residue supplied from the crushing and washing device 3. The piston 41 advances and retreats in the dehydrating cylinder 42 of the cylinder field by operating the cylinder, and intermittently squeezes the screen residue supplied from the pressure dehydrating device 3 to dehydrate. Therefore, the dehydrating cylinder 42 of the cylinder place at the lower position of the pressure dehydrating device 3
A small hole or a slit-shaped drainage hole (not shown) is preceded on the lower peripheral surface of the dehydrating cylinder, or a cylindrical shape is provided on the extension of the dehydrating cylinder 42 downstream of the pressure dehydrating device 3 as necessary. Is provided.

[0011] The downstream end (right side in the figure) of the pressurizing and pressing unit of the dehydrating apparatus having the hydraulic piston 41 is connected to a conveying pipe 5 which is cylindrical and bent to apply back pressure. And
A back pressure plate 51 is provided on the bent outer surface of the transfer pipe 5 so as to be swingable. The pipeline 5 disposed in the back pressure portion is a cylindrical transport pipeline having a tapered shape whose tip is expanded as necessary, or a parallel pipe when the transport distance is relatively small, An opening is provided on the outer surface of the transfer conduit, the back pressure plate 51 is fitted into the opening, the back pressure lower end is swingably supported by a shaft, and the back pressure plate 51 is supported by a back pressure hydraulic cylinder. In accordance with the applied pressure, the water enters the pipeline, and the screen residue supplied into the pipeline is subjected to a required back pressure to dehydrate. This back pressure can be adjusted by hydraulic pressure applied to a cylinder (not shown).

The conveying pipe 5 is mainly composed of a cylindrical conveying pipe. The conveying pipe is arranged in a U-shape or inclined, and has a cylindrical or rectangular shape. Is adopted. When the transfer tube is cylindrical, the pressure uniformity is excellent, and when the transfer tube is rectangular, the pressure uniformity is slightly inferior to that of the cylindrical tube, but is excellent in manufacturability and cleanability. Further, in order to smoothly transfer the screen residue after dehydration, a low friction agent, for example, a high-density polyethylene thin film may be attached to the inner surface of the cylinder, or Teflon processing may be performed.

The end of the transfer pipe 5 is vertical.
A shutter 6 for opening and closing the inside of the pipeline is provided in a part thereof, and a long cylindrical bag 7 is fitted to the end of the pipeline relative to the shutter 6. This is provided with bag holding means mainly composed of a roller 8 for holding and repeating a plurality of bags on the outer periphery of the end of the pipeline 5. Is inserted.

The conduit 5 is further provided with a pushing device 9. The pushing device 9 is a piston type, and has a cylinder 9 provided on the pipe side.
In step 1, the piston 92 can be inserted into the end of the line, which has become a straight line, and the opening and closing operation of the shutter 6 and the pushing operation of the piston 92 are synchronized with each other to remove the dewatered screen residue conveyed in the line. Is pushed out from the pipe end by being pushed into the pipe.

A bag closing means 10 for sealing and closing the bag is provided below the line end. In order to form this long cylindrical bag 7 into a fixed-form closed bag, the bottom and the mouth of the cylindrical bag are sealed. When the bag is made of synthetic resin, it is sealed with a heat sealer, and a cutter or Cut with a seal cutter. A detecting means for detecting whether or not there is a foreign substance such as a nail, a piece of wood, a bamboo or the like is provided in the sealing portion of the bag, whereby the sealing of the bag mouth portion and the bottom portion is performed more reliably. With this single sealing, the long tubular bag can simultaneously close the mouth of the preceding bag and close the bottom of the subsequent bag.

Accordingly, when the shutter of the pipe 5 is opened and the piston 92 is inserted into the pipe straight section by operating the cylinder 91 of the pushing device 9, the screen residue in this portion is forcibly pushed out. At this time, since a tubular bag with a closed bottom is attached to the pipe end, the screen residue pushed out by the piston is filled so that it can be pushed directly into the bag from the pipe without touching the outside air, Then, the bag closing means 10
The mouth of the bag is cut with a seal, and the bag is taken out as a sealed bag.

[0017]

According to the bag residue filling device for screen residue of the present invention.
If the collected screen residue is depressurized and dehydrated, it is disposed at the end of the pipeline where it is conveyed.
Dewatered by being inserted into the conduit end
Pressing device to push out screen residue and inside the tube
Press to discharge the conveyed dewatered screen residue
Shutter that opens and closes in synchronization with the
A large amount of dewatered screen residue is filled in a long tubular bag attached to the end of the pipeline and arranged so that the mouth of the bag is sealed . Continuous
It has the advantage that it can be performed automatically and accurately, is hygienic, and can be easily post-processed.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing the entire device of the present invention.

FIG. 2 is an explanatory view of filling in a bag by a pushing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Screen residue 2 Conveyor 3 Crushing washing device 4 Pressure dehydration device 42 Piston 43 Back pressure plate 5 Conveyance line 6 Shutter 7 Long cylindrical bag 8 Roller 9 Pushing device 10 Bag closing means

Continuation of the front page (72) Inventor Atsuo Hirai 3-1-1, Shimosakabe, Amagasaki-shi, Hyogo Pref. Inside of Hitachi Industrial Machinery Co., Ltd. (56) References JP-A-4-123896 (JP, A) JP-A-2 -227199 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B30B 9/04 B30B 9/06 B30B 9/28 C02F 11/12

Claims (1)

(57) [Claims] 1. A means for pressurizing and dewatering a collected screen residue, a transfer pipe connected to the pressurizing means, and a piston provided by a cylinder disposed near the end of the pipe.
Into the end of the pipeline that has become a straight pipeline, and carry it through the pipeline.
Pushing device to push out the dewatered screen residue sent
A shutter <br/> terpolymers which opens and closes the dewatering screen residue conveyed to location and tube in synchronization with the pressing device for discharging the quantification, the screen residue directly into a bag which is disposed in the conduit end after turning, and a Fukuro閉means for sealing closed the mouth of the bag
Packaged device screen residue characterized by comprising.