JPH061327A - How to fill the screen residue into the bag - Google Patents

Abstract

(57) [Summary] [Purpose] The screen residue is dehydrated under pressure, and the predetermined amount is made as low as possible to ensure that the bag is sealed. [Structure] A bag longer than the guide height is sagged, and a required amount of dewatering screen residue is put into the bag B set in the guide so that the upper part opens, and the mouth of the bag B is pulled up. After opening, fold the mouth and seal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention applies pressure dehydration to a screen residue collected by scraping it from a waterway such as a sewage treatment plant or a pumping station, and then packing it into a bag by reducing a predetermined amount as much as possible. The present invention relates to a method for filling a screen residue that makes it easier to securely seal a bag.

[0002]

2. Description of the Related Art In a sewage treatment plant, a pump station, etc., solid matter mixed in wastewater is separated from wastewater, and the solid matter and wastewater are treated separately. This solid matter is generally called a screen residue, and since it is scraped and collected from waste water with a dust remover, the water content is extremely high,
In this state, it cannot be dumped, incinerated, or carried out to the dumping position. Therefore, the collected screen residue is dehydrated to the required water content.

[0003]

However, since the processing of the dehydrated screen residue is stored in the hopper and then loaded in bulk on a truck or the like and transported to an incineration site or a dumping place, the truck or the like can be used. During loading and transportation, the dehydrated screen residue is also scattered into the atmosphere and may scatter, or the odor may scatter in all directions, which is also a cause of secondary pollution such as a foul odor. To prevent this, the dehydrated screen residue is packed in a bag. In the conventional bag filling method, a predetermined amount is put into the bag and the mouth is welded, or the bag is fastened. Dehydration screen residue is miscellaneous and its properties are not always the same. If you fill the bag with bulky screen residue as it is, the bag will be full, the fabric of the sealing part will be tensioned more than necessary, the sealing will not be reliable, the bag will fall when loading from the conveyor to the truck, or it will be transported. However, there is a drawback that this sealing is likely to come off. Further, in order to prevent this, when the packing rate is lowered and sealing is performed, if the bag is made larger than necessary, the guide for setting the bag becomes high, and there is a disadvantage that the bag is set in trouble.

According to the present invention, a fixed amount of dehydrated screen residue is packed in a bag so that the bag is filled so that the filling rate is appropriate, and the bag can be easily set and reliably sealed. To aim.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object. A bag which is longer than the guide height is slackened, and the bag is set in the guide so that the upper part is opened. After adding a predetermined amount of dewatering screen residue, hold the bag mouth at multiple points in the circumferential direction at almost regular intervals, lift the bag from the guide, and remove the sagging and wrinkles of the bag. Therefore, the gist of the present invention is that the filling screen residue is stabilized and the bag can be reliably sealed using a small bag.

[0006]

[Function] A long bag is bent and set on a guide, an appropriate amount of screen residue is filled, and the bag mouth is clamped and lifted. As a result, when the bag mouth is sealed, the screen residue is prevented from being caught in the sealing position, and the bag can be reliably sealed.
For this reason, a certain amount of screen residue can be filled in with a margin of the sealing bag without making the bag unnecessarily large, and the guide bag can be easily set. By performing this operation at least once, the sagging and wrinkles of the bag are surely extended. If you add a proper drop motion,
The vibrations at the time of dropping make the filling rate of the screen residue appropriate and the packing is densely packed, and the top surface is flattened, so that it becomes more reliable.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiments. The screen residue scraped up and collected from a waterway such as a sewage treatment plant or a pumping station by a dust remover contains uncrushed materials such as human feces in the screen residue. After crushing and washing, it is supplied to a pressure dehydrator to perform desired pressure dehydration.

Dehydrated screen residue from the hopper,
A predetermined amount is put into the bag B set in the guide G arranged on the turntable T at regular intervals in the circumferential direction. This bag B is longer than the height of the guide G,
It is inserted in the guide so as to be hung in the longitudinal direction of the bag. Then, the sealing device A is installed at a fixed position on the turntable T.

This bag-sealing device A holds the bag mouth portion, lifts the entire bag filled with screen residue and moves it up and down, and a flat center fold so that the bag mouth portion can be clamped securely. The center folding portion E and the sealing portion C that seals the flat center folding portion.

The screen residue put into the bag has a predetermined weight depending on the size of the bag and the like, but the properties of the screen residue are not always uniform and may be very bulky in some cases. Even if the screen residue is light in weight, it becomes bulky, and even if it is put in a bag, it may reach the bag mouth portion, making sealing impossible. Therefore, the filling rate of the input screen residue is increased. This is done by sandwiching the mouth of the bag, lifting it to a predetermined height, and then dropping it, and if necessary, repeating this dropping operation twice or more, and smoothing the top surface of the filling screen residue by dropping vibration. At the same time, the space between the screen residues is closely packed and filled.
This filling section D will be described in detail in FIG.

A mechanism for holding the bag mouth portion and moving the entire bag up and down locks a rod of a lifter cylinder 13 provided under the main body frame with an elevating frame 14 and attaches the elevating frame 14 to a fixed frame 15 in an X shape. It is attached via a link 16, and the elevating frame 14 is provided with a filling portion D and a center folding portion E.

As shown in detail in FIGS. 4 and 5, the filling portion D suspends and supports the suspension frame 17 on the elevating frame 14, and faces the both sides of the suspension frame 17 so as to face each other. A pair of parallel links 18 and 19 are pivotally attached to each other. This parallel link 18, 18 on the left side,
The parallel links 19 and 19 on the right side are arranged to face each other from the center of the suspension frame 17 to the left and right, and the support shaft 18 is attached to the bearings 18a and 19a projecting from the suspension frame 17.
It is supported by a suspension frame via c and 19c, and a connecting rod 20 is erected between the left and right parallel links 18 and 19, and the left and right parallel links 18 and 19 are tuned perfectly in the contact and separation directions. Make it move. This is one parallel link 1
The connecting rod 20 is installed between the arbitrary midpoint shaft 18b of 8 and the support shaft 19b provided at one end of the right parallel link 19, but the swing angles of the left and right parallel links 18, 19 are In order to make the right and left equal, the distance between the pivot 18c of the parallel link 18 and the midpoint axis 18b, and the pivot 19 of the parallel link 19
c and the distance between the support shafts 19b are made equal.

The bracket 21 of the suspension frame 17
The tip of the rod 22a of the sandwiching cylinder 22 supported by the part of the connecting rod 20 or the spindle 1 of the parallel link 19
9b, whereby the left and right parallel links 18 and 19 facing left and right via the connecting rod 20 by the operation of one cylinder 22 swing in synchronization with each other, that is, the left and right parallel links 18, 19 Clamping device 2 pivotally attached to the lower end
3, 24 are swung in the contact and separation directions.

Since the sandwiching claw devices 23 and 24 are bilaterally symmetrical, only the device 23 on the left side will be described. As shown in detail in FIGS. 4 and 5, the holding claw device has a claw frame 23.
The lower ends of the left parallel links 18, 18 are pivotally attached to the upper part of a via shafts 23b, 23b, and fixed claws 23c are provided on the lower surface of the claw frame 23a so as to project in a substantially vertical direction. The movable claws 23d are arranged so as to face each other, and the movable claws 23d are swung with respect to the claw frame 23a via the support shaft 23e, that is, the fixed claws 23c are opened and closed like scissors. The supported rod of the claw opening / closing cylinder 23f is engaged with a part of the movable claw 23d.

As shown in detail in FIGS. 6 and 7, the center-folded portion E is in a direction orthogonal to the holding claw devices 23 and 24 for holding and opening and closing,
In addition, a guide rod 26 is horizontally installed on an intermediate folding frame 25 provided on a suspending frame 17 suspended from the elevating frame 15 at an intermediate position between the sandwiching claw devices 23 and 24. Moving frame 27 of the table,
The foldable cylinder 27 is swingably supported, and a center folding claw 28 is vertically provided on the lower surface of each moving frame 27, and a rod of a center folding cylinder 29 provided in the center folding frame 25 is locked to the upper part of the moving frame. At this time, the two movable frames 27, 27 are guided by the guide rods 26 in the contact and separation directions with respect to each other so that one movable cylinder 27, 29 is formed in each movable frame.
Are arranged so as to be opposite to each other.
Reference numeral 8 denotes both fixed and movable claws 23c and 23 of the clamping claw devices 23 and 24.
It is provided so as to project slightly below the lower ends of d and 24c, 24d.

Therefore, the dehydrated screen residue is set on the guide G on the turntable T of the bagging device,
When a predetermined amount is put into the opened bag B, as shown in FIG. 1, the folding frame E of the lifting device as detailed in FIGS. When the cylinder 13 is opened, the lifting frame 15 is lowered via the link 16 by the operation of the cylinder 13. At this time, since the bag B filled with the required amount of screen residue to be sealed is set at this lower position, the opened holding claw devices 23 and 24 are inserted into the cutout portions of the guide G on the turntable. Will be done. As a result, the fixed claws 23c and 24c are inserted inside the opened bag B, and the movable claws 23d and 24d face the fixed claw outside the bag B. Next, the claw opening / closing cylinders 23f and 24f are operated to swing the movable claws 23d and 24d toward the fixed claw side, and between the two claws 23c and 23d.
And 24c and 24d are closed to sandwich the bag mouth portion at at least two places.

Next, when the lifting cylinder 13 is operated,
The elevating frame 15 ascends via the link 16. As a result, the bag mouth portion is clamped and lifted by the clamping claw devices 23 and 24. After the bottom of the bag B is lifted from the turntable or the guide and reaches a predetermined height, the lifting frame is lowered. This descent is preferably steep.
By repeating this operation once or twice or more, the dewatering screen residue put into the bag has a smaller gap than the coarse filling state due to the drop vibration, and becomes dense filling. That is, the filling rate is increased and the top surface of the screen residue is leveled. After the screen dust is thus densely filled in the bag and the center folding cylinders 29, 29 are actuated, the moving frames 27, 27 move toward each other, and the center folding claws 28, 28 are illustrated. The solid line position is closer to the broken line position than the open position. These center folding claws 28, 28 are located on the outer side of the bag in the opened state,
Further, since the nipping device 23, 24 is located at the center position, the bag mouth portion has the center folding claws 28, 2 of the center folding part E detailed in FIGS. 6 and 7.
8 and the centering claws of the clamping claws by the cooperative operation of the proximity motions of the clamping claw devices 23 and 24 to form a flat Z shape and a narrow center-folding shape.

After the bag mouth is flatly folded in this way, this portion is sealed by the clamp portion C with a staple. This is to move the scissor-shaped clamp frames 6 and 6 toward the bag side from the clamp standby position shown in FIGS. 1 and 3 through the link 3 by operating the cylinder 8. At this time, since the tips of the opposing clamp frames 6 and 6 are open, the clamp frames 6 and 6 are inserted into the outside of the bag mouth portion that is flattened in the middle. The clamp frames 6 and 6 which were opened when the cylinder 12 was operated were brought into close proximity to each other via the link and the gear 10 to close the gap between the frames to clamp the bag mouth portion and to attach the stapler attached to the clamp frame 6. Sealed at 7.

When the bag mouth is sealed with a staple, the clamp frame is opened, the movable claws of the claw clamping devices 23 and 24 are opened, and the elevating frame is raised.
The bag is sealed and placed on the table. Next, the turntable is rotated by only one pitch to seal the next bag.

[0020]

According to the method of filling the screen residue of the present invention, after putting a predetermined amount of dehydrated screen residue into the opened bag, the bag mouth part is sandwiched, and the bag is lifted and dropped, and this is performed at least once or more. As a result, drop vibration is given to the dehydrated screen residue that has been thrown in, the bag filling is made dense and the volume is made low, and then the top surface of the screen residue in the bag is made flat so that the bag mouth part is sealed. At that time, there is an advantage that it can be surely folded with a stapler by folding it into a flat shape.

[Brief description of drawings]

FIG. 1 is a front view of an apparatus for carrying out a screen residue filling method of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of a filling unit.

FIG. 5 is a side view of the same.

FIG. 6 is a front view of a center folding section.

FIG. 7 is a side view of the same.

FIG. 8 is a front view of the lifting device.

FIG. 9 is a side view of the same.

FIG. 10 is an explanatory view showing a method of filling a screen residue according to the present invention.

[Explanation of symbols]

 T Turntable B Bag A Sealing device C Clamp part D Filling part E Middle folding part 1 Base 3 Slide link 4 Slide stand 6 Clamp frame 7 Stapler 8 Slide cylinder 12 Clamping cylinder 13 Lifter cylinder 14 Lifting frame 17 Hanging frame 18 , 19 Parallel links 23, 24 Clamping device 25 Center folding frame 28 Center folding claw 29 Center folding cylinder

Claims (1)

[Claims] 1. A bag longer than the guide height is sagged, and a required amount of dewatering screen residue is put into the bag set so that the upper part of the bag is opened, and the mouth of the bag is pulled up. The method of filling the bag with the screen residue that folds the mouth and then seals the bag.