JPH105795A - Device for continuously treating and discharging sludge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save resource by connecting a vacuum device with a sludge tank, also arranging a spiral conveyer in the inside, attaching a mesh cover at the outer periphery of the conveyer, classifying earth and sand and water, returning the discharging water to a site of construction and treating to utilize it. SOLUTION: A pipe 2 is communicated with the vacuum device 3 and the sludge containing earth and sand and water is sucked into the sludge tank 1 became in a vacuum state through the pipe 2 and motors 12-14 are driven. Then the sludge flew in to the lower end part of the spiral conveyer 4 is conveyed upwards while it is stirred with the spiral conveyer 4, and during this time, the water drops down through the mesh cover 6 at the outer periphery of the spiral conveyer 4 on the sludge tank 1 bottom and is discharged outside from a discharge port 8 via a water discharge device 9. This water is stored in a discharge water storage tank, recycled to water for construction and the earth and sand separated the water flow in an earth and sand discharge device 11 through an earth and sand discharge port 10 and is loaded on a dump car from an external conveyer, transported and discharged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process for flowing sludge into a sludge tank, evacuating the sludge tank, arranging a spiral conveyor inside to separate water and soil to reduce sludge and continuously discharge the sludge. Also, the present invention relates to a continuous sludge treatment and discharge apparatus which transports and discards it with a dump truck and returns water to a construction site for reuse.

[0002]

2. Description of the Related Art Conventionally, excavating land while adding a stabilizing solution,
When discharging this sludge, as shown in FIG. 3, a sludge container 101 is placed on a sludge suction vehicle 100, and a sludge tank 10 is placed.
2 is connected to a vacuum device 103 to make a vacuum state, and the sludge containing the earth and sand is discharged from the construction site by a pipe 104 into a sludge tank 10.
2 and stored in the discharge tank 105. The sludge in the discharge tank 105 is stored in the sludge container 1 of the sludge suction vehicle 100.
When the sludge container 101 is full, the sludge suction vehicle 100 is operated to transport and discharge the sludge container 101 to a predetermined place. This was a one-patch system in which the sludge inside was sucked into the sludge container 101 of the sludge suction vehicle 100.

[0003]

In the above-mentioned prior art, the sludge containing water is discarded as it is, so that the amount of sludge becomes the amount obtained by adding the stable liquid used for excavation to the excavated soil and the amount of sludge is reduced. There was a problem that the water in the sludge could not be reused.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems by connecting a sludge tank having a sludge inflow port to a vacuum device, and internally disposing a spiral conveyor.
One end protrudes from the sludge tank, a cylindrical cover is put on the outer periphery of the protruding part, a mesh cover is attached to the outer periphery of the spiral conveyor in the sludge tank, and a water discharge device is arranged at the drain port formed at the bottom of the sludge tank. A sediment discharging device is installed at the formed sediment discharge port to separate sediment and moisture, only the sediment is transported and dumped by a dump truck, and the discharged water is returned to a construction site for reuse.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the embodiments shown in FIGS. 1 is a sludge tank, 2 is a pipe which connects the sludge tank 1 and the vacuum device 3. A spiral conveyor 4 is provided in the sludge tank 1, one end of the spiral conveyor 4 projects from the sludge tank 1, a cylindrical cover 5 is put on the outer periphery of the projecting portion, and a mesh cover 6 is attached to the outer periphery of the spiral conveyor in the sludge tank 1. A sludge inflow port 7 is mounted on the upper part, a water discharge device 9 is mounted on a drain port 8 formed at the bottom of the sludge tank 1, and a sediment discharge device 11 is mounted on a sediment discharge port 10 formed on a protruding portion of the spiral conveyor 4. ing. The moisture discharging device 9 and the earth and sand discharging device 11 are configured such that a rubber emperor is rotated in close contact with the inner periphery of the housing, so that air does not enter the sludge tank 1 and a vacuum is maintained to discharge moisture and earth and sand. Reference numeral 12 denotes a motor of the earth and sand discharging device 11, 13 denotes a motor of the water discharging device 9, and 14 denotes a motor of the spiral conveyor 4.

Next, the operation will be described. The pipe 2 communicates with the vacuum device 3 to make the inside of the sludge tank 1 vacuum.
Next, the sludge containing earth and sand and water is sucked from the construction site 17 by the pipe 2, and the motors 12, 13, and 14 are driven.
The sludge flowing into the lower end of the spiral conveyor 4 from the sludge inlet 7 is conveyed upward while being stirred by the spiral conveyor 4, and during this time, water drops from the mesh cover 6 on the outer periphery of the spiral conveyor 4 to the bottom of the sludge tank 1, The water flows into the water discharging device 9 from the drain port 8 and is discharged to the outside. The discharged water is stored in a drainage storage tank 15, returned to a construction site 17 as construction water by a pipe 16, and recycled. The sediment separated from the water flows into the earth and sand discharger 11 from the earth and sand discharge port 10 at the lower end of the spiral conveyor 4, is loaded on the dump truck 19 by the external conveyor 18 and is driven by the dump truck 19 when full, and is transported and discarded. .
Sediment continuously discharged is loaded on the next dump truck. In this way, water is continuously discharged and sent to the construction site, and earth and sand is continuously discharged and transported and discarded one after another by a dump truck.

[0007]

According to the present invention, a sludge tank having a sludge inflow port is connected to a vacuum device, a spiral conveyor is disposed inside, and one end protrudes from the sludge tank. A mesh cover is attached to the outer periphery of the spiral conveyor in the tank, a water discharging device is installed at the drain port formed at the bottom of the sludge tank, and a sediment discharging device is installed at the sediment discharging port formed at the lower end of the cylindrical cover. Water is separated, and only soil and sand are transported and dumped with a dump truck, and the discharged water is returned to the construction site for reuse, so the sediment and water contained in the sludge can be separated, and the wastewater can be recycled as construction water. Only the truck can be transported by a dump truck, so the weight can be reduced compared to the conventional method. In addition, since the operation can be performed in a continuous operation, the operation efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a front sectional view of one embodiment of the present invention.

FIG. 2 is an overall configuration diagram when the embodiment of FIG. 1 is used.

FIG. 3 is an overall configuration diagram of a conventional example when used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sludge tank 2 Pipe which connects a sludge tank and a vacuum device 3 Vacuum device 4 Spiral conveyor 5 Cylindrical cover 6 Mesh cover 7 Sludge inflow port 8 Drain port 9 Moisture discharge device 10 Sediment discharge port 11 Sediment discharge device 12,13,14 Motor 15 Drainage storage tank 17 Construction site 18 Transport conveyor 19 Dump truck

Claims (1)

[Claims] 1. A sludge tank having a sludge inflow port is connected to a vacuum device, a spiral conveyor is provided inside the sludge tank, one end of the sludge is protruded from the sludge tank, and a cylindrical cover is placed on the outer periphery of the protrusion.
A mesh cover is attached to the outer periphery of the spiral conveyor in the sludge tank, a water discharge device is installed at the drain port formed at the bottom of the sludge tank, and a sediment discharge device is installed at the sediment discharge port formed at the lower end of the cylindrical cover. A continuous sludge treatment and discharge system characterized by separating water and soil, transporting and discarding only earth and sand with a dump truck, and returning the discharged water to the construction site for reuse.