JPS5938433A - Method and apparatus for treating highly viscous soil - Google Patents

Abstract

PURPOSE:To make easier the treatment of highly viscous soil following a stabilization work in which the highly viscous soil is sufficiently mixed with an additive by using a process in which an additive is spread on highly viscous soil being pushed out little by little from a vibro-hopper, and the highly viscous soil so treated is repeatedly cut into smaller pieces. CONSTITUTION:When highly viscous soil is supplied to a hopper 9, the soil drops under its own weight because the side plate 10 of the hopper 9 is vibrated by a vibrator 11 and also the soil is pushed out little by little by an oil-pressure cylinder 13 pusher provided at the bottom of the hopper 9. While an additive is spread on the soil, the soil is cut into small pieces for raising the mixing degree of the additive and the soil. The highly viscous soil can thus be stabilized and the succeeding treatment of the soil can be made easier.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating soil, in particular highly viscous soil, an II3 and an apparatus therefor.

Normally, highly viscous materials such as viscous substances stick to handling equipment, making it extremely difficult to handle and causing heat or vibration to the handling equipment, such as baffles.
) shall not be. Therefore, 11 with high viscosity like this
1 [ is the additive, lemmen [- system, '1- lime, slaked
Add ash, fly ash, etc. to stabilize IR.1.
Techniques are known to facilitate the subsequent handling of +p.

However, in order to carry out such stable treatment, the additive and soil must be mixed at a certain ratio, and it is extremely difficult to supply the sticky covering soil to the handling equipment at a certain ratio from, for example, a hopper. -There is a CC logger.

In addition, between the mixing stations or IW stirring equipment for mixing, there is also the problem of sticking to one culm until it is stabilized.5!11
I'm trying to figure out the problems.

Therefore, the object of the present invention is to provide a method for treating high viscosity + IH that can stably treat high viscosity "lod" using additives at a certain ratio, and that does not stick to handling equipment during the operation. Practice that method/Il! There is a device to provide i.

According to the present invention, highly active soil is supplied to a vibrating hopper,
Soil is supplied from the hopper to an extrusion device, and from the extrusion device, the soil is extruded in fixed volumes J, and the extruded soil L/I is cut in the longitudinal direction, during which additives are sprinkled on the cut soil. After that, it is mixed with soil.

Ill be able to use a vibrating hopper in this way.
does not have a mouth attached to the side wall of the hopper, and the cylinder h
It will not stick to the inner wall of the cylinder when it is extruded.

Then cut perpendicular to the extrusion direction to increase the surface area.
By applying additives and stabilizing the surface, cube-shaped soil that is relatively difficult to adhere to can be obtained. This cube-shaped soil is further shredded, but the cutting operation can be carried out relatively easily by surface stabilization treatment. The soil and the additives are then mixed so that the surface of the relatively small cubes of soil is completely stabilized, making further handling easier. Also, since the volume of the cylinder is known, the amount of additive to be added after extrusion can be calculated in advance.
t IN ', and the mixing ratio is always the correct one. Since at least the surface of the small forest-like soil 41 has been stabilized, it is easy to handle.

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1(a) and 1([1) show a highly cohesive soil processing apparatus according to the present invention, which is equipped with a chiller bin 1, a hopper 9, etc. installed at the base 13 and the base B of FIG. ,
The f-yarn bin 1 is for storing granular additives used for stabilizing the -1-loan, and the small brim 9 is for processing!
-There is something that can accommodate. A pumping tact 2 is connected to the charge bin 1, and the additive is transferred to the pumping ducts 1 to 2 by a suitable empty L1 means (not shown) to the charge bin 1.
It has been introduced since then. A rotary feeder 3 for supplying additives in a fixed amount is installed at the lower end of the dibin 1, and the additives are supplied according to the gap (area S) between the rotary feeder 3 and the sliding plate 4. The dosage can be adjusted. This rotary feeder 3 is shown in detail in FIGS. 243 and 3, and is suitable for granular additives such as quicklime or slaked lime. In the embodiment shown in FIG. 2, a screw adjusting member 5 is connected to the sliding plate 4, and the gate area S is adjusted by appropriately rotating the handle 6. As a result, the discharge amount of the additive is as follows: V= (Rotation speed) x (Feeder circumference: πD) x (Goo 1~
It is expressed as: S). In addition, a rotating blade 7 for preventing crosslinking is provided near the lower end of the 17-jibin 1 (=J).When a powder such as Hyment or fly ash 1 is used as an additive, the feeder A vane feeder 8 like J shown in FIG. 3 is preferable.In this case, the additive discharge MV
is expressed as: V=(rotation speed)×(-chamber volume: Q).

Now, as shown in FIGS. 1(a) and 1(b), the treated soil is being put into the hopper 9. In order to prevent the soil loaded into the hopper 9 from adhering to the hopper side plates i'o and io, the side plates 10.10 are swung downwards and back and forth by a conventionally known vibrating means 11.11, and the soil is forcibly removed from the hopper side plates i'o and io. Create a gap between 9 and
It is designed to encourage the soil to fall under its own weight. An oil cylinder 133 is provided below the hopper 9 which has a slider '12 serving as extrusion means. The soil extrusion means 12 at the opening A, which is extruded in the direction of the feeder 33, is shown in detail in FIG. This slider 12 is supported by a rotatable wheel 15.15 for good forward and backward movement. 16 are connected. As a result, when the slider 12 retreats, the soil falls on the front surface of the slider, and as the slider 12 moves forward, the soil pile 3 is pushed out.

In FIGS. 1(A) and 1(0), in front of the slider 12 in the advancing and retreating direction, a rotary cutter 18 having a large number of cutting blades 17 fixed in a radial manner is rotatably driven by a motor 24.
: Supported by sea urchins. Further i1. (C block 1) A plurality of fixed blades 19 are provided at the tip where the opening is pushed out 1-1-
The positions of the cutting blades 17 of the kuri cutters 18 are arranged in a row so as to be offset from each other at an intersection 47. Therefore, one piece of rock pushed out by the slider 12 is B G,1,
First, the soil is cut into a plurality of long pieces by a row of fixed blades 19, and then further cut by a row cutter 18, and an additive of a constant #H is sprinkled on the cube-shaped soil thus cut. become. If a force exceeding a predetermined level is applied to the cutter gate G supported by the appropriate pressure means 20, for example, when a stone or the like is bitten, the cutter gate G, which is supported by the appropriate pressure means 20, may break down at a point in FIG. Rotate to the position indicated by the chain line G'. Therefore, by providing a conventionally known sensing means (not shown), 60% of soil can be
If foreign matter such as the like is mixed in, damage to the cutting blade 17 can be prevented. In order to discharge this mixed foreign matter, wheels 23, 23 are provided so that the entire housing 22 housing the rotary cutter 18 can be moved back.

1] - An Arno termimeter 25 is arranged below the terminating force vine 18 in a direction perpendicular thereto. This after-cutting tool 25 is constructed by combining a plurality of cutters 27 having a plurality of radial cutting blades 2G. This cutter 27
is rotated by a motor 28, and the rotary cutter 18 cuts the cut soil into smaller cubes in the right angle direction. This cutter 2
It is preferable that the cutting blade 26 of No. 7 be installed at an inclination angle of approximately 30 degrees. It can also act as a scrico feeder that feeds in the +, , 7'j directions. The 1L+1B which is finely cut and transferred by this group of cutters 27 is dropped onto the conveyor belt 729 and is delivered to the outside of the I layer.

A hydraulic circuit diagram for driving the slider 12 of the upper j8 processing device is shown in FIG. It is connected to a variable pump 32. The variable hydraulic pump 32 is fully driven by a motor 3C3, and supplies oil from the oil tank 34 through an oil filter 3315.

Incidentally, a Lilino valve 36 is provided in the circuit. With this configuration, the operation of the hydraulic cylinder 13.1
1 can be done.

In addition to installing an appropriate sensing means on the fixed blade 19 side, in addition to installing a suitable sensing means on the side of the fixed blade 19, as a measure to prevent accidents caused by the contamination of foreign substances such as (i) mentioned above, as shown in FIG. Switch 3 ('l can also be used (-
be. This switch opens and closes the electrical circuit by sensing changes in the L torque in the oil 11 circuit.If a hard piece is caught between the slider 12 and the fixed blade 19 row, the hydraulic pressure will be switched off. For setting cylinder 13 (160kg/
Is the pressure more than 1y? Rurudo, pressure switch 3
0 is activated and the solenoid valve is changed to the middle X''LL state, the hydraulic cylinder 13.13 is stopped, and unreasonable f1 target is not applied to each part.It is also desirable to stop the operation of the entire device. Perform a reset on the control panel.

Further, the treated soil discharged from the after-filler 27 is loaded into the nozzles 1 to 37a by the conveyor 29. At this time, for work safety,
! −j Nhen,? 29 (7) -/L/-muK
', / ('i' L3 E3 is stretched, and the limit switch 39 is installed at the end of the line ()), and the tension switch 3B is Sno'ring/IO (apply tension ()).

This is J, a bell [Help when working on -21 Nbeno 7]
~: 1 Nbeno 729 horizontal 2 people>Ti (-I N:
l M'c'/ , (V'y 38 K When touched, limit] Switch-39 is 1'1 and Bell 1- Conhair 29 drive stand (↑ stops. Return ca I'J making 18
(Liren+-L/-(fju.

The H method and device of the present invention add additives while cutting l:, #( into a certain size, and furthermore, it kills l:, #() in one step.
By shredding the j8, a uniform fj7 combination of -c'J-lod and additives can be achieved. In addition, it is easy to supply additives in a constant quantity, and the supply tr can also be freely adjusted.

Furthermore, the device of the present invention uses vibration means installed on both sides of the small brim to periodically create a gap between the soil and the hopper side plate, so that the soil in the hopper is kept under its own weight ("dropping") at a constant rate. The cross section is pushed out by the slider 12, and the filling density is also almost constant.Therefore, the constant m
A uniform it/combination ratio of the supplied additives is achieved.

Also, can this device be made in either a stationary or mobile type? A wide range of applications can be achieved by appropriately adjusting the amount of additive supplied.

[Brief explanation of the drawing]

Figures 1 (a) and ([l) are side views and plan views of the soil treatment equipment of the present invention, and Figures 2 and 33 are detailed views showing the regular supply device "1". Figure 2 shows the row feeder, Figure 3 shows the side view of the vane feeder, and Figure 4 shows the side view of the vane feeder.
The figure is a detailed sectional view showing the driving part of the slider that pushes out the soil block, Figure 5 is a diagram of the hydraulic piping for driving the slider, and Figure 6 is the processed lif! Figure 7 is a layout diagram of the conveyor belt for discharging the i~''. Il'c is a partial detail view of the safety device of the enclosed belt conveyor; 1... Charge bin 2..., Pressure duct 3...
・[]-Takuliida 4...Sliding plate 5...
Screw adjustment part 9...Small collar 12...Slider
13...Oil F Toshilink 1B...1-1-Kurikatsuta 27...j No-nota Mikiri 29.
... Bell 1-2] Nbeno' Patent Applicant Shojima Road Stock Company Limited Special 8'1 Applicant Kajima Corporation Company Limited Figures 2, 11 and 3

Claims (2)

[Claims] (1) Highly viscous soil is supplied to the vibrating hopper, the soil supplied to the hopper is supplied to the extrusion device, and the extrusion device presses the soil at a constant volume at a rate of 11 degrees. The extruded soil is cut by hand, during which additives are sprinkled on the cut soil, and then the soil is further shredded and the additives and the shredded ±16 pieces are mixed. Dozuruhe Viscosity-L treatment method. (2) A slider driven by a hydraulic cylinder for pushing out highly viscous soil, a feeder for supplying a soil improver at a constant fn, and a slider for mixing the soil improver while cutting the extruded soil. A soil processing device characterized by installing a row cutter and an annotami 1: which is installed at the rear stage of this U-tally ivy and shreds the l and two upper Ill to ensure uniform mixing.