JPH0686740B2 - Inhalation head for sludge treatment equipment - Google Patents

Description

The present invention relates to a suction head in a sludge treatment device for treating sludge accumulated in a harbor, a river, a lake or the like.

[Conventional technology]

Conventionally, various methods have been adopted as a method for treating sludge accumulated in ports, rivers, lakes and marshes, commonly called sludge. There is a method to directly collect sludge.

[Problems to be Solved by the Invention]

However, in the above method of lowering the hose from the ship and sucking sludge, it is difficult to treat the small solids in the sludge that are larger than the inner diameter of the hose, and if this small solid clogs the tip of the hose, There is a problem that it has to be interrupted, while the method by the underwater power shovel,
It is suitable for the treatment of small solids in sludge, but it is inefficient and unsuitable for the treatment of sludge in a fluid state mixed with water or seawater.

Therefore, the problem to be solved by the present invention is that, for example, if it is installed on the suction side of a sand pump for sucking sludge, it can crush small solids in the sludge and homogenize the sludge. The present invention is to provide a suction head for a sludge treatment device capable of efficiently performing suction pumping of sludge.

[Means for Solving the Problems]

The present invention has been made for the purpose of solving the above-mentioned problems, and its configuration is such that two vertical portions are provided in a case-like case in which an opening is formed in a side surface and a suction pipe is continuously provided in an upper portion. The shafts are arranged, and the vertical shafts are provided with non-contact meshing stirring blades having outer diameters larger than the distance between the shafts and inclined downward in mutually opposite directions and inclined in a non-contact manner. It is characterized in that the gears having the same number of teeth are rotated in opposite directions while maintaining the meshed state of a precise positional relationship with each other.

[Action]

The inclined stirring blades twisted in opposite directions rotate in opposite directions while maintaining the meshed state of accurate positional relationship around two vertical axes, thereby crushing small solids in sludge and homogenizing sludge. Fluidization and fluidization, and facilitates suction of sludge by a sand pump.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

1 is a side sectional view of an example of the inhalation head of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. 4 is a plan view thereof.

In the figure, 1 is a case-like case in which a suction pipe 2 is connected to the upper part, and 3 is an opening for introducing sludge in the front of the case 1, which prevents the inflow of large solid matter into the sludge. A large number of grids 4 are attached to the suction pipe 2, and the suction pipe 2 has a bifurcated shape, and is connected to a suction hose 15 of a sand pump (not shown) by a flange joint 5 at its confluence. The case 1 plays a role of an enclosure when mixing sludge and water or seawater described later.

Reference numerals 6 and 7 are vertical shafts arranged in the case 1 through bearings 8 and 9, and stirring shafts 10 and 11 that are twisted and inclined in directions opposite to each other are in non-contact meshing state with the vertical shafts 6 and 7. Each stirring blade 10, 11 has an outer diameter larger than the distance between the centers of the vertical shafts 6, 7 and has a structure with blades inclined in opposite directions like a normal helical gear. ing.

12 is a gear attached to the vertical shaft 6 in the bearing portion 8, 13
Is a gear attached to the vertical shaft 7 in the bearing portion 9, and the gear 12 and the gear 13 are gears having the same number of teeth that mesh with each other.

Reference numeral 14 denotes an oil motor provided on the bearing portion 8 for rotating the shaft 6. As shown in FIG. 3, when the motor 14 rotates counterclockwise, the left stirring blade 10 also rotates counterclockwise, With this rotation, the gear 12 also rotates counterclockwise,
The gear 13 meshed with this rotates in the clockwise direction at the same angular velocity as the gear 12, and the shaft 7 and the right stirring blade 11 also rotate in the clockwise direction.

Therefore, both stirring blades 10 and 11 rotate in the opposite directions at the same angular velocity, and the meshing between gear 12 and gear 13 and both stirring blades
By adjusting the meshing positions of 10 and 11, the helical gears rotate just like they rotate at the same angular velocity when meshed.

The positional relationship between the stirring blades 10 and 11 in the above meshed state is meshed with an interval that allows the small solid matter in the sludge to be crushed without contacting each other. It can be adjusted by appropriately changing the inclination angle or the outer diameter.

Further, in the figure, 16 is a sludge, 17 is water or seawater, and 18 is a bottom soil mixed with gravel and the like.

The suction head of the present invention is constituted by the above 1 to 14 and is used by being connected to a suction hose 15 such as a sand pump. By rotating both stirring blades 10 and 11 in the case 1, the sludge 16 is removed. First in the sludge from the opening 3
By moving the sludge to the right in the figure at a required speed, the sludge can be uniformly treated and sent to a sand pump or the like.

Thus, in the processing, large foreign matters in the sludge 16 are removed by the lattice 4, but small solid matter, soil clods, etc. are caught between the stirring blades 10, 11 rotating in a meshed state. It is crushed and crushed, and is mixed into a uniform state that is easily pumped by a sand pump. At this time, as described above, the case 1 also serves as an enclosure for mixing, and both stirring blades 10, 1
Although it depends on the inclination angle of 1, the flow of sludge 16 in a fluidized state caused by the stirring blades 10 and 11 in a radial direction from the center of the stirring blades 10 and 11 to the outer peripheral direction or at a right angle to the direction of the bottom soil 18 It also serves as a flow channel.

In addition, when treating the sludge 16 when the viscosity of the sludge 16 is high or in a place where only the sludge 16 has accumulated, if a proper amount of water is supplied to the case 1, the concentration will be such that the sand pump can inhale and pump. It can be processed.

Furthermore, the effect of washing sludge that has entered between the gravel on the surface of the bottom soil 18 by mixing with the stirring blades 10 and 11 can be expected.

〔The invention's effect〕

The present invention is as described above, and the suction head for a sludge treatment device of the present invention is not limited to sludge that is in a fluid state from the beginning, and even sludge with a large amount of small solids and clods is homogeneous with the inclined stirring blade. It can be turned into and removed.

Even if the viscosity of the sludge is high, it is possible to homogenize by stirring and mixing to a viscosity that can be sucked by the sand pump by supplying an appropriate amount of water into the body.

Further, since the inhalation head of the present invention has a simple structure, it rarely breaks down, and can be manufactured and provided easily and at low cost.
It is extremely economical because it can be easily attached to the tip of a suction hose that has been used conventionally.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view of an example of the inhalation head of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. It is a figure. 1 ... Case, 2 ... Suction tube, 3 ... Case opening,
4 ... Lattice, 5 ... Flange joint, 6,7 ... Vertical axis, 8,9
...... Bearing part, 10,11 …… Stirring blade, 12,13 …… Gear, 14 ……
Oil motor, 15 ... Suction hose such as sand pump

Claims (1)

[Claims] 1. A vertical housing is provided with two vertical shafts in a housing-shaped case having an opening formed on a side surface and a suction pipe connected to the upper portion, and the vertical shafts are larger than the distance between the shafts. Stirrer blades having outer diameters and twisted downward in opposite directions are installed in a non-contact meshing state, and these stirring blades are meshed in a precise positional relationship with each other via gears having the same number of teeth. A suction head for a sludge treatment device, characterized in that it is kept and rotated in mutually opposite directions.