JP3323988B2 - Sand pump for slime treatment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slime processing sand pump, and more particularly to a slime processing sand pump for effectively sucking slime stored at the bottom of a hole excavated for constructing an on-site pile or a continuous underground wall. About.

[0002]

2. Description of the Related Art Slime treatment pumps have already been proposed. However, the conventional slime processing pump is basically the same as a normal sand pump, and has a function of simply sucking and feeding slime together with water.

[0003] In order to carry out construction work for constructing an on-site construction pile, a continuous underground wall, and the like, a hole is first excavated, and a slime stored at the bottom of the hole is discharged using a sand pump or the like. The construction depends on many factors such as the nature of the slime due to the soil properties, the quality of the bentonite stabilizer injected into the holes, the performance of the excavator and the individual differences of the operators. For this construction, improvement of quality control and reduction of working time are greatly required. To treat a large amount of slime stored inside the hole, first discharge a considerable amount of slime out of the hole, possibly with a bucket, and then move the sand pump through the inside of the hole,
A method of discharging the remaining amount of slime outside the hole has been implemented.

[0004]

The conventional slime processing pump cannot sufficiently discharge slime from the bottom of the hole, and the conventional construction described above requires a large amount of labor and a large amount of construction equipment such as a bucket. Work time was needed.

Therefore, the present invention improves on the prior art,
An object of the present invention is to provide a slime processing sand pump capable of surely and quickly sucking and discharging slime stored at the bottom of a hole or the like.

[0006]

The present invention employs the following means in order to solve the above-mentioned problems.

[0007] 1. A slime treatment machine is attached to the lower part of the sand pump via several first connecting members, and the slime treatment machine is disposed at a center of the cylindrical upper water flow direction restriction plate and the center of the upper water flow direction restriction plate. And a screw fixed to the lower end of the drive rotation shaft of the sand pump, an upper mounting disk provided above the upper water flow direction restriction plate, and a cone disposed below the screw A sand pump for slime treatment comprising a lower water flow direction guide plate having a shape, and several second connecting members for connecting the upper mounting disk and the lower water flow direction guide plate.

[0008] 2. The slime processing sand pump according to claim 1, wherein the cone shape is a hollow cone shape having a concave curved surface.

3. 3. The slime treatment sand pump according to the above item 2, wherein a total of a plurality of water flow discharge holes are formed in a top portion of the lower water flow direction guide plate and the concave curved surface.

[0010] 4. 2. The slime processing sand pump according to claim 1, wherein a water flow direction guide vertical plate is fixed to a lower portion of each of the second connecting members.

5. 2. The slime treatment sand pump according to the above 1, wherein several water flow suction holes are formed around the upper water flow direction restriction plate.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A slime processing sand pump according to an embodiment of the present invention will be described with reference to FIGS.

First, an outline of the situation when the sand pump for slime treatment of the present embodiment is used inside a digging hole for constructing an on-site construction pile will be described with reference to the schematic diagram of FIG. I do.

The slime processing sand pump is constructed by connecting the sand pump 1 and the slime processing machine 11 with several bolts described later. The drive rotation shaft 2 of the sand pump 1 is extended downward, and a screw 12 of the slime processor 11 is fixed to a lower end thereof. Sand pump 1
A drain pipe 4 is provided at the upper part of the, and an electric wire 5 is connected thereto.

The diameter of the excavation hole 21 into which the sand pump for slime treatment is inserted, that is, the diameter of the construction pile is D, and the slime 22 is stored near the bottom of the excavation hole 21. One end of a supply pipe 25 for injecting a bentonite stabilizing solution 24 or the like into the excavation hole 21 is inserted into a casing 23 built prior to excavation of the excavation hole 21. The part and one end of the discharge pipe 26 connected to the part are inserted. The other end of the discharge pipe 26 is
Is inserted into. The electric wire 5 passes through the casing 23 and is connected to the cap tire, and electric power is supplied to a motor serving as a driving source of the sand pump 1. The upper part of the drain pipe 4 is suspended from a crane via a wire 28.

When the sand pump 1 is started, the screw 12 of the slime processor 11 rotates. Then, the slime 22 stored near the bottom of the excavation hole 21 is agitated and floated, and is sucked into the sand pump 1 together with water,
It is discharged to the receiving vessel 27 via the drain pipe 4 and the discharge pipe 26.

The sand pump for slime treatment is cut into a pit 21
Then, the bentonite stabilizing solution 24 or the like is injected from the supply pipe 25 into the inside of the excavation hole 21, and thereafter, the operation of constructing the on-site pile is continued.

Next, the structure and operation of the sand pump for slime treatment of this embodiment will be described in detail with reference to FIGS.

An upper mounting disk 14 is attached to the lower part of the sand pump 1 with several bolts 3 at a distance such that the sand pump 1 can suck the water mixed with the slime 22. .

The slime treatment device 11 includes a cylindrical upper water flow direction restriction plate 13, a screw disposed at the center of the upper water flow direction restriction plate 13, and fixed to the lower end of the driving rotary shaft 2 of the sand pump 1. 12 and upper water flow direction limiting plate 1
3 and an upper mounting disk 14 having a through hole 14A in the center of the drive rotary shaft 2 of the sand pump 1 and a lower surface of the screw 12 and a concave curved surface 15A. A lower water flow direction guide plate 15 having a hollow conical shape, several suspension bolts 16 connecting the upper mounting disk 14 and the lower water flow direction guide plate 15,
6 and a water flow direction guide vertical plate 17 fixed to the lower portion of the base 6. Water flow discharge holes 15B are formed at a total of several places on the top and concave curved surface 15A of the lower water flow direction guide plate 15, and water flow suction holes 13A are formed at several places around the upper water flow direction restriction plate 13. .

When the sand pump 1 is started, the screw 12 of the slime processor 11 rotates through the rotating shaft 2. Then, the screw 12 radiates water in the vicinity thereof in the direction of the arrow, that is, a horizontal radial direction along the concave curved surface 15A of the lower water flow direction guide plate 15, and several water discharge holes of the lower water flow direction guide plate 15. 15B and vertically downward. At this time, water is sucked into the upper water flow direction restriction plate 13 from several water flow suction holes 13A.
Accordingly, the slime 22 stored near the bottom of the excavation hole 21 is stirred and floats, is sucked into the sand pump 1 together with water, and is discharged to the receiving vessel 27 via the drain pipe 4 and the discharge pipe 26.

In the present embodiment, the lower water flow direction guide plate 15 has a central conical shape, but the design can be changed to a simple pyramid shape. Further, in the present embodiment, the upper water flow direction restriction plate 13 and the upper mounting disk 14 are separate bodies, but the design can be changed so as to be integrally formed. Further, in the present embodiment, a through hole 14A for the driving rotary shaft 2 of the sand pump 1 is formed in the center of the upper mounting disk 14, but a larger hole is formed to allow the upper mounting disk 14 to be mounted. The disk 14 can be modified into a perforated disk.

[0023]

As is apparent from the above description, the present invention has the following advantages.

1. The slime processing sand pump can be formed by slightly modifying the ordinary sand pump and adding a slime processing machine, which is convenient.

2. Since the slime is sucked by the sand pump after stirring and floating, the slime discharge efficiency can be significantly improved.

3. Even when there is a large amount of slime, it is not necessary to use a bucket or the like, so that the slime discharge processing time can be reduced.

4. The structure of the present invention is simple and the slime can be discharged while the capacity of the sand pump is the same as the conventional one. In addition, the cost is low and the maintenance is easy.

5. The present invention can be effectively used for sludge treatment and dredging.

6. There is no need for large-capacity power or large slime treatment equipment.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view when a slime treatment sand pump according to an embodiment of the present invention is used inside a hole for constructing an on-site pile.

FIG. 2 is a side view of a slime processing sand pump according to an embodiment of the present invention. However, the slime processing machine is shown in a sectional view.

3A and 3B are views of a slime processing sand pump according to an embodiment of the present invention, wherein FIG.
, (B) is a bottom view of a lower water flow direction guide plate, (c) is a side view of a suspension bolt with a water flow direction guide vertical plate, and (d) is a bottom view of a suspension bolt with a water flow direction guide vertical plate. Are respectively shown.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sand pump 2 Drive rotation shaft 3 Bolt 4 Drain pipe 5 Electric wire 11 Slime processing machine 12 Screw 13 Upper water flow direction restriction plate 13A Water flow suction hole 14 Upper mounting disk 14A Through hole 15 Lower water flow direction guide plate 15A Concave curved surface 15B Water flow Discharge hole 16 Hanging bolt 17 Water flow direction guide vertical plate 21 Drilling hole 22 Slime 23 Casing 24 Bentonite stable liquid, etc. 25 Supply pipe 26 Drain pipe 27 Receiving vessel 28 Wire

Claims (5)

(57) [Claims] 1. A slime processing machine is attached to a lower part of a sand pump via several first connecting members, and the slime processing machine has a cylindrical upper water flow direction restriction plate and the upper water flow direction restriction plate. And a screw fixed to the lower end of the driving rotary shaft of the sand pump,
An upper mounting disk provided above the upper water flow direction restriction plate, a cone-shaped lower water flow direction guide plate provided below the screw, the upper mounting disk and the lower water flow direction. A sand pump for slime treatment, comprising: a plurality of second connecting members for connecting to a guide plate. 2. The slime processing sand pump according to claim 1, wherein the cone shape is a hollow cone shape having a concave curved surface. 3. The slime treatment sand pump according to claim 2, wherein a total of several water flow discharge holes are formed in the top of the lower water flow direction guide plate and the concave curved surface. 4. The slime treatment sand pump according to claim 1, wherein a water flow direction guide vertical plate is fixed to a lower portion of each of said second connecting members. 5. A water flow inlet according to claim 1, wherein several water suction holes are formed around said upper water flow direction restriction plate.
Sand pump for slime treatment as described.