JPH06106084A - Disintegrating device for planar reformed surplus soil material - Google Patents

Abstract

PURPOSE:To disintegrate the planar reformed surplus soil materials right after being discharged from a filter press with high efficiency by a simple means to nearly prescribed sizes. CONSTITUTION:The front part of a transporting conveyor 2 extending forward from the lower part of a filter press 1 is provided with a chute 3 extending diagonally downward from the front end of this transporting conveyor 2. A main roll 5 for disintegration and auxiliary roll 6 for disintegration which are rotated by a driving device 4 and extend in a lateral direction are provided apart a spacing in a parallel state diagonally downward of this chute 3. The main roll 5 for disintegration and the auxiliary roll 6 for disintegration have many annular projecting parts 7 and annular projecting parts 8 disposed with deviation by a half pitch in the longitudinal directions of the rolls. The spacing between these annular projecting parts 7 and 8 is set smaller than the thickness of the planar improved surplus soil materials 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention produces a residual soil improving material by mixing a slurry such as residual soil from a construction site with a time-curable material such as cement, and then pressurizing and dehydrating with a filter press. The present invention relates to a device for immediately crushing a plate-like residual soil improving material discharged from the filter press.

[0002]

2. Description of the Related Art Hitherto, as a means for crushing a large lump into small lumps, a means for rotating a rotary blade having teeth and beating the large lump by the rotary blade has been usually adopted.

[0003]

The beat splitting method using the rotary blades is suitable for crushing lumpy and relatively hard materials such as rocks, but improving plate-like residual soil immediately after dehydration that has not completely hardened. The following problems occur when it is used for crushing wood. That is, since the impact point is random, the sizes of the crushed materials may not be uniform, and in the worst case, delamination in the thickness direction of the plate-like residual soil improving material may occur, and strength appearance may not be achieved and random Due to the impact, chipping and pulverization of the edges of the plate-like residual soil improving material occur, and the yield deteriorates.

[0004]

In order to advantageously solve the above problems, in the crushing apparatus for a plate-like residual soil improving material of the present invention, a conveyer conveyor 2 extending from the lower part of the filter press 1 to the front side. A chute 3 extending obliquely downward from the front end of the conveyor 2 is provided at the front part of the conveyor 2, and a main crushing roll 5 that is rotated by a drive device 4 and extends in the left-right direction diagonally below the chute 3. And the crushing auxiliary roll 6 are provided in parallel with a space therebetween, and the crushing main roll 5 and the crushing auxiliary roll 6 are arranged with a large number of offsets by a half pitch in the roll longitudinal direction. Annular protrusion 7
And annular protrusion 8 are provided, and the distance d between the annular protrusions 7 and 8 is d.
Is set to be smaller than the thickness D of the plate-like residual soil improving material 9. Further, a pressing roller 10 for pressing the upper surface of the plate-like residual soil improving material 9 may be provided above the vibrating chute 3.

[0005]

1 to 7 show an embodiment of the present invention in which a filter press 1 is a fixed molding unit 1.
1, a movable molding unit 12, and a large number of intermediate molding units 13 interposed therebetween, and a mixture inlet 1 at the center of a fixed molding unit 11 fixed to a support 14.
5 is provided, and a mixture supply pipe 16 is connected to the inlet 15 thereof via an opening / closing valve 17.

A jack holding member 20 to which a hydraulic jack 19 for pressing the movable molding unit 12 is fixed, is fixed to the support base 14, and a liquid pump 22 driven by an electric motor 21 is provided with a check valve 23. It is connected to the hydraulic jack 19. In addition, the fixed molding unit 11
Side rails 46 extending in the front-rear direction are erected and fixed across the left and right side portions of the jack holding member 20 and the plurality of wheels 18 mounted on the left and right sides of the movable molding unit 12. It is mounted at 46.

A recess 24 for accommodating a residual soil improving material is provided on the surfaces of the fixed molding unit 11, the movable molding unit 12, and each intermediate molding unit 13 facing each other, and a flow hole is formed in the center of each intermediate molding unit 13. 25 is provided,
Intermediate molding unit 1 in the fixed molding unit 11
3, a seal ring 26 made of an elastic material such as rubber is fitted in the groove around the portion facing 3 and also in the groove provided around the surface of the intermediate molding unit 13 on the movable molding unit 12 side. The seal ring 26 is fitted.

A drain hole 2 is provided at the bottom of each intermediate molding unit 13.
7 is provided, and a filter cloth is provided on the surface of the fixed molding unit 11 facing the intermediate molding unit 13, the surface of the movable molding unit 12 facing the intermediate molding unit 13, and the surfaces on both sides of the intermediate molding unit 13. 28
Are abutted.

At the lower part of the filter press 1, a conveyor 2 for advancing and conveying the plate-like residual soil improving material 9 discharged from the filter press 1 is installed, and in front of the conveyor 2, the conveyor 2 is provided. A vibrating chute 3 including a plate-shaped chute 29 and a vibrator 30 connected to the plate-shaped chute 29 is provided obliquely downward from the front end of the No. 2.

A crushing main roll 5 rotated by a drive unit 4 is provided at a position close to the lower end of the vibrating chute 3, and the crushing auxiliary roll is diagonally above the crushing main roll 5. 6 is provided, and the main roll for crushing 5
The crushing auxiliary roll 6 extends in the left-right direction, and the crushing main roll 5 is provided with a large number of annular protrusions 7 arranged at a constant pitch P. , Annular protrusions 8 arranged at a constant pitch P are provided, and the annular protrusion 7 of the main crushing roll 5 and the annular protrusion 8 of the auxiliary crushing roll 6 have a half pitch in the roll longitudinal direction. It is only offset.

The crushing main roll 5 is rotated in the moving direction of the plate-like residual soil improving material 9 by the drive unit 4, and is crushed by the drive gear 32 fixed to the drive shaft 31 of the crushing main roll 5. Driven gear 3 fixed to driven shaft 33 of auxiliary roll 6 for crushing
4 are meshed with each other, and the crushing auxiliary roll 6 is also rotated in the moving direction of the plate-like residual soil improving material 9.

The surface connecting the center of the main crushing roll 5 and the center of the auxiliary crushing roll 6 is perpendicular to the extension of the upper surface of the chute 29, and the auxiliary crushing roll 6 is a plate. 90 ° so as to be located in front of the moving direction of the residual soil improvement material 9.
The pressing roller 10 that is set at an angle of + α and that presses the upper surface of the plate-like residual soil improving material 9 is disposed above the lower portion of the chute 29, and a straight line that connects the annular projecting portions 7 of the crushing main roll 5 with each other. The distance d between the crushing auxiliary roll 6 and the straight line connecting the annular protrusions 8 is equal to the plate-like residual soil improving material 9
Is set to be smaller than the thickness D.

When manufacturing a plate-like residual soil improving material, first, the hydraulic jack 19 is extended to bring the fixed molding unit 11, each intermediate molding unit 13, and the movable molding unit 12 into close contact with each other, and then open and close. The valve 17 is opened, and a high-pressure driving pump (not shown) is operated to pass a mixture of the residual soil slurry and a time-curable material such as cement through the mixture supply pipe 16 and the on-off valve 17. High pressure is fed into the filter press 1. After the mixture is sent into the filter press 1 to be completely filled, the opening / closing valve 17 is closed, the operation of the driving pump is stopped, and the mixture in the filter press 1 is pressurized and dehydrated.

After performing a predetermined amount of pressurization and dehydration, the hydraulic jack 19 is loosened, and the movable molding unit 12 and the intermediate molding unit 13 are sequentially opened while the dehydrated plate-like residual soil improving material 9 is filtered. It is taken out from the press 1 and placed on the conveyor 2.

The plate-like residual soil improving material 9 forwardly conveyed by the conveyor 2 slides on the vibrating chute 3 and is pressed by the pressing roller 10 while being crushed by the main crushing roll 5 and crushing auxiliary. A large number of annular projections 7 in the main crushing roll 5 are moved toward the rolls 6.
And the annular protrusions 8 of the crushing auxiliary roll 6 press the plate-shaped residual soil improving material 9 to crush the plate-shaped residual soil improving material 9 to a substantially constant size in the left-right direction. Moreover, since the rear side of the plate-like residual soil improving material 9 is pressed by the pressing roller 10 so as not to float up from the chute 29, the auxiliary roll 6 for crushing which is displaced forward of the main roll 5 for crushing As a result, the plate-like residual soil improving material 9 is crushed to a substantially constant size in the front-rear direction, and falls into crushed pieces 35. FIG. 8 shows a crushing line when crushing the plate-like residual soil improving material 9.

FIGS. 9 and 10 show another example of the crushing main roll 5 and the crushing auxiliary roll 6,
A large number of annular discs 37 are fitted to the main roll shaft 36 at regular intervals, and a cylindrical spacer 38 is fitted between the adjacent annular discs 37 to form a hole edge of each annular disc 37. The key 39 provided on the main roll shaft 36 is fitted in the key groove 40 provided on the main roll shaft 36 to form the crushing main roll 5 having a large number of annular protrusions 7.

A plurality of annular discs 42 are attached to the auxiliary roll shaft 41.
Are fitted at regular intervals, a cylindrical spacer 43 is fitted between adjacent annular discs 42, and a key 44 provided at the hole edge of each annular disc 42 is attached to the auxiliary roll shaft 41. The crushing auxiliary roll 6 having a large number of annular protrusions 8 is formed by being fitted into the provided key groove 45.

[0018]

According to the present invention, the chute 3 extending obliquely downward from the front end of the conveyor 2 is provided at the front of the conveyor 2 extending from the lower part of the filter press 1 toward the front. Diagonally below the chute 3,
The crushing main roll 5 and the crushing auxiliary roll 6 which are rotated by the drive device 4 and extend in the left-right direction are provided in parallel with each other, and the crushing main roll 5 and the crushing auxiliary roll are provided. 6 is provided with a large number of annular protrusions 7 and 8 which are arranged offset by a half pitch in the longitudinal direction of the roll, and the distance d between the annular protrusions 7 and 8 is set to the plate-like residual soil improving material 9 Thickness D
Since it is set smaller than that, the plate-like residual soil improving material 9 immediately after being discharged from the filter press 1 can be crushed into a substantially predetermined size with high efficiency by a simple means.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a side view showing a part of FIG. 1 in an enlarged manner.

FIG. 3 is an enlarged front view showing a main crushing roll and a crushing auxiliary roll in FIG.

FIG. 4 is a side view showing the vicinity of a filter press.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a partially cutaway vertical side view showing a filter press.

FIG. 7 is a vertical cross-sectional side view showing a part of FIG. 6 in an enlarged manner.

FIG. 8 is a plan view showing a crushing line of a plate-like residual soil improving material.

FIG. 9 is a partially cutaway front view showing another example of the crushing main roll and the crushing auxiliary roll.

FIG. 10 is a vertical sectional side view showing another example of the crushing main roll and the crushing auxiliary roll.

[Explanation of symbols]

 1 Filter Press 2 Conveyor 3 Chute 4 Drive 5 Crushing Main Roll 6 Crushing Auxiliary Roll 7 Annular Projection 8 Annular Projection 9 Plate-like Soil Improving Material 10 Pressing Roller 11 Fixed Forming Unit 12 Movable Forming Unit 13 Intermediate Molding unit 14 Support base 15 Inlet 16 Mixture supply pipe 17 Open / close valve 18 Wheel 19 Hydraulic jack 20 Jack holding member 21 Electric motor 22 Liquid pump 23 Check valve 24 Recessed soil improving material accommodating recess 25 Circulation hole 26 Seal ring 27 Drain hole 28 Filter cloth 29 Chute 30 Vibrator 31 Drive shaft 32 Drive gear 33 Driven shaft 34 Driven gear 35 Crushing piece 36 Main roll shaft 37 Annular disk 38 Cylindrical spacer 39 Key 40 Key groove 41 Auxiliary roll shaft 42 Annular disk 43 Cylindrical spacer 44 key 45 key groove 46 side The

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Shunji Uryu 46-59 Nakahara, Tobata-ku, Kitakyushu City Nippon Steel Co., Ltd., Machinery & Plant Division (72) Mitsuya Murata 46, Nakahara, Tobata-ku, Kitakyushu 59 Nippon Steel Co., Ltd. Machinery & Plant Division (72) Inventor Satoshi Saito 2-5-14 Minamisuna, Koto-ku, Tokyo Incorporated Takenaka Corporation Technical Research Institute (72) Toshiaki Ishise Koto-ku, Tokyo 2-5-14 Minamisuna Technical Research Institute of Takenaka Corporation (72) Inventor Yoshio Suzuki 2-5-14 Minamisuna Engineering Co. Ltd. of Kotaku, Tokyo (72) Incorporated Technical Research Institute of Takenaka Corporation (72) Yasushi Kanzaki Takenaka Civil Engineering Co., Ltd. 8-21-1, Ginza, Chuo-ku, Tokyo (72) Inventor Yoshifumi Fujii Ginza 8-21-1, Ginza, Chuo-ku, Tokyo Takeshi, Inc. Civil engineering in (72) inventor Onishi TsuneYasushi Ginza, Chuo-ku, Tokyo eight-chome No. 21 No. 1 stock company in Takenakadoboku

Claims (2)

[Claims] 1. A chute 3 extending obliquely downward from a front end of the conveyor 2 is provided at the front of the conveyor 2 extending forward from the lower part of the filter press 1, and diagonally downward of the chute 3. , The crushing main roll 5 which is rotated by the drive device 4 and extends in the left-right direction
And the crushing auxiliary roll 6 are provided in parallel with a space therebetween, and the crushing main roll 5 and the crushing auxiliary roll 6 are arranged with a large number of offsets by a half pitch in the roll longitudinal direction. Each of the annular protrusions 7 and 8
A crushing apparatus for a plate-like residual soil improving material in which a distance d of 8 is set smaller than a thickness D of the plate-like residual soil improving material 9. 2. The crushing apparatus for a plate-like residual soil improving material according to claim 1, wherein a pressing roller 10 for pressing the upper surface of the plate-like residual soil improving material 9 is provided on the upper part of the chute 3.