JP3108700B2 - Stock and treatment method of bagged screen residue - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of incinerating a screen waste which has been scooped and collected from a water channel of a sewage treatment plant, a pumping station, etc., and then the screen residue which has been washed and dehydrated is sequentially stored in a bag. It is about.

[0002]

2. Description of the Related Art In a sewage treatment plant, a pumping station, and the like, solid matter mixed in sewage, so-called screen residue, is separated from sewage, and the solid and sewage are individually treated. This solid matter is generally called a screen residue, and is collected from the wastewater by being scooped and collected by a dust remover.Therefore, it contains a lot of uncrushed matter such as human feces, and the water content is extremely high. In this state, the odor is too bad to be discarded, incinerated, or carried out to the dumping position. For this reason, the collected screen residue is dehydrated to a required moisture content. Tokuho Sho 5
7-43049 and JP-A-1-117118. The processing is performed by the method shown in FIG.

[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. Since it is necessary to transport to a place, when loading and transporting to a truck or the like, the dehydrated screen residue is also scattered because it is open to the atmosphere, or an odor is scattered in all directions. In order to prevent this, a method of packing and processing has been proposed. However, since this method does not provide a stock yard in the vicinity of the bagging station, it is necessary to transport the dewatering screen immediately after bagging, or to transport it to another location. Therefore, in the conventional method, it takes time to carry out and stock after bagging.

According to the present invention, a screen residue collected from a sewage treatment plant or the like is crushed, washed and dehydrated, packed in a fixed amount, then sequentially stocked, and taken out and processed as necessary. With the goal.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and comprises a bagging station for filling a required amount of dewatered screen residue in a bag, and a stock yard for stocking the bagging station. Adjacent, the screen residue packed in the bagging station is conveyed and stored in the adjacent stockyard empty address by an automatic hoist, and this stockyard is equipped with a means for detecting the presence of each address in each empty address sequentially. The point is that bags are stored and transported from this stock yard to the treatment plant as needed.

[0006]

The screen residue that has been washed and dehydrated is fed back into the bag holding frame on the turntable with its mouth folded back into a predetermined bag set in an open state. At this time, the bag is supported by the bag holding frame on the turntable, so that the bag does not fall down and is stable, and the opening is made surely so that a predetermined amount of screen residue is reliably filled in the bag. it can. Next, the loop-shaped fastening cord inserted into the bag mouth is pulled to close the bag mouth, and a predetermined bag is filled. After that, it is moved and stored in a stock yard adjacent to the bagging station using a hoist or the like. A lot number is determined in advance in this stock yard, the empty of the lot number is confirmed, and the bag is transported and secured to the vacant lot number. From the stock yard, the cargo is loaded on a truck or the like and transported to an incineration plant or the like, and the next bag is transported and stored again in the empty lot number. This eliminates the need for a conventional conveyor for transporting the dewatered screen residue, a hopper for temporarily storing the dewatered screen residue, and a skip hoist for transport, and can consistently perform sanitary operations from bagging to storage.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiment. The screen residue scraped and collected by a dust remover from a waterway such as a sewage treatment plant or a pumping station contains uncrushed human waste such as manure, so it must be removed continuously or intermittently to remove it. Is supplied to the crushing / cleaning apparatus A via a conveyor. Then, the waste is crushed and washed by the crushing and washing device A, and is removed, and then supplied to a pressurized dehydrator B disposed below the sewage. The crushing washing and dewatering device A is disposed below the upper end of the conveyor C, and is disposed above the pressure dehydrating device B so as to double as a hopper so that the screen residue can be easily introduced.

The crushing / cleaning apparatus A can be implemented by various apparatuses. In the illustrated apparatus, a press plate 2 and a roller 3 are provided in a casing 1 and the roller 3 is rotated. Is pressed against the roller 3 side at a required pressure, and a washing nozzle 4 for washing dirt is provided by injecting washing water at a required high pressure toward the outer peripheral surface of the roller or between the roller and the press plate.

As a result, the collected screen residue introduced into the casing 1 from the conveyor C falls between the press plate 2 and the roller 3, and the rotation of the roller 3 and the pressing force of the press plate 2 toward the roller are reduced. As a result, the uncrushed soil of the screen residue is crushed and washed with washing water jetted at a high pressure.

[0010] The screen residue supplied from the crushing and washing apparatus is then pressed and dehydrated. The pressurized dewatering device B is provided with a piston 41 of a hydraulic cylinder in a dewatering cylinder 42, and by operating this cylinder, the piston 41 advances and retreats in the cylindrical dewatering cylinder 42 and is sequentially supplied from the crushing and cleaning device A. The screen residue is squeezed intermittently and dewatered from the drainage hole of the dewatering cylinder.

A transfer pipe 5 is connected to a dehydrating device having a hydraulic piston 41, and a chute 6 having a measuring section is disposed at the end of the transfer pipe 5, so that a required internal capacity is obtained. And a shutter 6 at the bottom (bottom) that can be opened and closed freely.
1, the shutter is opened, and the dewatered screen residue is fed and supplied from the chute 6 into the bag 7 such as the bag table on the turntable 8 to perform bag packing.

Empty bags 7 having a required size are arranged and arranged on a turntable 8 with their mouths widened at predetermined intervals, and are stably supported so that the bags do not fall. Then, in a state where the empty bag 7 is spread, a screen residue is introduced from a chute 6 provided at the end of the conveying pipeline from the upper position. Two endless-shaped mouth fastening cords L, L are inserted into the bag 7 so as to sew the outer periphery of the mouth of the bag 7 for filling the screen residue.

A stock yard S2 for stocking a required number of filled bags is disposed adjacent to a bagging station S1 for performing the process from dehydration to bag filling of the screen residue, and a stock yard from the turntable of the bag filling station S1. An automatic hoist 10 that moves over the entire length is provided. The automatic hoist 10 has a hoist rail 11 having a length extending over the entire length of the stock yard above the turntable, and supports the hoist 12 along the hoist rail 11 so that the hoist 12 can run. The operation such as running, lifting and lowering of the hoist, opening and closing of the hook, and the like can be performed by the operation panel 14 provided at the bagging station side or at a predetermined position.

After the required amount of the dewatered screen residue is filled in the stock yard S2, the space necessary for placing one bag with a closed mouth is placed at the top, and the hoist rails are arranged in one or more rows. Are arranged in the longitudinal direction, and each of the addresses is provided with an in-stock detection means K, whereby the empty / real state of each address is detected, and the hoist 12 is stopped upward in opposition to each address. For this purpose, a hoist stop means, for example, a switch such as a limit switch is provided.

Therefore, the bag 7 placed on the turntable
After filling the required amount of dewatered screen residue into the inside and closing the mouth, the automatic hook 13 of the hoist 12 is lowered, and the hanging string L of the bag or the lifting string attached to the bag is hooked up and lifted, and along the rail. Move the hoist above the stockyard. Then, the empty address of the stock yard is determined by the presence detection means K, and the bag is suspended on the empty address. By repeating this operation sequentially, bags of screen residue packed in bags on the turntable are successively lifted, transported, and stored or stored in the stock yard S2. When transporting the bag to an incineration plant or the like, the bag is lifted again by a hoist and loaded and unloaded to a truck or the like. In this open lot number, the next bag is stored again in the same manner.

The embodiment shown in FIG. 2 shows a method of batch-treating screen residues generated in large and small treatment stations, pump stations and the like scattered over a wide area. Large-scale sewage treatment plants are equipped with large-scale washing and dewatering bagging devices, medium-scale treatment plants and pumping stations are equipped with dehydrating bagging devices with simple washing functions, and small-scale facilities are equipped with compact screen treatment devices. The screen residue generated is bagged and stored as described above, and intensive processing is performed after patrol collection by a collection truck, so that the screen residue can be collected and disposed of in a sanitary and efficient manner. It can be handled in the same way as treatment and does not adversely affect the surrounding environment.

In this centralized treatment plant, the waste is incinerated in a batch furnace, put into a garbage pit together with municipal waste, incinerated in a municipal waste incineration plant, or transported to a landfill for landfill.

[0018]

According to the method of stocking and treating bagged screen residue of the present invention, a bagging station for filling a required amount of dehydrated screen residue into a bag and a stockyard for storing the same are adjacent to the bagging station. In addition to transporting and storing the screen residue packed in the bag to an empty address in the adjacent stock yard with an automatic hoist, this stock yard is equipped with a means for detecting the presence of each address and sequentially stores bags in the empty address,
In addition, since the dewatered screen residue is transported and stored easily and sanitarily from the stockyard to the treatment plant as needed, there is an advantage that the equipment can be simplified.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of a method for stocking and treating bagged screen residue according to the present invention.

FIG. 2 is an explanatory view of a different embodiment.

FIG. 3 is an explanatory diagram of a known example.

[Explanation of symbols]

 7 bags 8 turntable 10 automatic hoist S1 bagging station S2 stockyard

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-79102 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65F 5/00

Claims (1)

(57) [Claims] 1. A bagging station for filling a bag with a required amount of dehydrated screen residue and a stockyard for stocking the bag residue are adjacent to each other, and the screen residue packed in the bagging station is automatically hoisted. Conveyance and storage to an adjacent empty address of the stock yard, bags are sequentially stored in the empty address by providing the stock yard with means for each address in the stock yard, and transported from this stock yard to a processing site as necessary. A method for stocking and treating bagged screen residue.