JPH07290037A - Device for treating construction sludge - Google Patents

Abstract

PURPOSE:To obtain a uniform construction sludge not contg. any large lump by providing a hopper contg. an agitator in the vicinity of a construction sludge storage tank, furnishing a crusher below the hopper and providing a continuous feeder below the crusher. CONSTITUTION:A hopper 3 is arranged below the inclined screen supported on the ground through a supporting frame in the vicinity of a construction sludge storage tank, and an impeller 14 to be rotated by a driving device 10 fixed to the vertical shaft 12 is set in the hopper. Plural cutter supporting arms 16 are fixed to the vertical shaft 12, and many movable cutters 17 are fixed to each arm 16 at intervals in the longitudinal direction of the arm. The hard material or lump in the sludge is crushed by the movable cutter 17 and a fixed cutter 20 fixed to the upper face plate 18. The crushed sludge is discharged toward an outlet 28 by the rotary disk of a continuos feeder 5, dropped quantitatively into the acceptor 31 of the tubular body 30 housing a conveyor 29 by the rotary disk and sent to the succeeding stage by the conveyor 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a hopper having a stirrer therein near a construction sludge storage tank, crushes lumpy substances falling from the hopper, and continuously supplies construction sludge. It relates to the device.

[0002]

2. Description of the Related Art Conventionally, as a treatment apparatus for construction sludge, that disclosed in Japanese Utility Model Laid-Open No. 2-73446 has been known.

[0003]

In the case of the conventional construction sludge treatment device, since no crushing device is provided in the lower part of the hopper, if a lumpy substance is present, the lumpy substance forms agglomerates. However, there is a disadvantage that it is discharged as it is as treated sludge.

[0004]

In order to advantageously solve the above problems, in the construction sludge treatment apparatus of the present invention,
A hopper 3 having an agitator 2 inside is provided near the construction sludge storage tank 1, a crushing device 4 is provided below the hopper 3, and a continuous supply device 5 is provided below the crushing device 4.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The drawings show an embodiment of the present invention.
A plurality of construction sludge storage tanks 1 are buried in the ground 6, an inclined sieve 8 is fixed to an upper part of a support frame 7, and a hopper 3 arranged below the inclined sieve 8 is fixed to the support frame 7 and the hopper The holding frame 9 fixed to the lower part of 3 is indirectly fixed to the support frame 7, and the drive gear 11 is fixed to the drive shaft of the drive device 10 composed of the hydraulic motor fixed to the lower part of the holding frame 9. Is
A vertical axis 12 is arranged in the center of the hopper 3 and the holding frame 9, and the drive gear 11 is provided on the vertical axis 12.
A driven gear 13 meshing with the
A stirring blade 14 is fixed in the hopper 3,
The stirrer 2 is composed of the vertical axis 12 rotated by the driving device 10 and the stirring blades 14 fixed to the vertical axis 12.

A large number of slanted rods are arranged in parallel to form a slanting sieve 8, the slanting sieve 8 is fixed to the upper part of a support frame 7, and the low-level side of the slanting sieve 8 is provided.
A slant gutter 15 is provided for receiving solid matter that has not passed through the slant screen 8, and an outlet having an opening / closing lid is provided at the low-level side end of the slant gutter 15.

A plurality of cutter support arms 16 are fixed to the rotating vertical axis 12, and a large number of movable cutters 17 are provided on each cutter support arm 16 at intervals in the arm longitudinal direction.
Is fixed, and the upper plate 18 of the holding frame 9 is provided with an opening 19 extending in the radial direction of the upper plate 18, and a large number of fixing cutters 20 are fixed along the opening 19.

A plurality of horizontal rotary shafts 21 extending in the longitudinal direction of the opening 19 are provided below the opening 19, and the holding frame 9 has each horizontal rotary shaft 2 attached thereto.
A driving device 22 composed of a hydraulic motor for rotating 1 is fixed, a large number of crushing blades 23 are fixed around the horizontal rotating shaft 21, and the horizontal rotating shaft 21 having the crushing blades 23 fixed is
It is inserted into a horizontal hole 24 provided in the holding frame 9. In addition, the hard material or lumps in the construction sludge is moved by the movable cutter 17 fixed to the cutter support arm 16.
And the fixed cutter 20 fixed to the upper surface plate 18 crushes.

An opening 25 is provided in the lower part of each of the plurality of horizontal holes 24, and a rotating disk 26 is arranged in the lower part of the opening 25, and the rotating disk 26 is engaged with the vertical axis 12. In the vicinity of the outer circumference of the rotary disk 26, a large number of circular holes 27 are provided concentrically with respect to the vertical axis 12, and a discharge port 28 is provided below the holding frame 9 at a position facing one circular hole 27. A conveyor 2 provided on the discharge port 28 and driven by a driving device 62.
The inlet 31 of the tubular body 30 accommodating 9 is connected.
The circular hole 27 quantitatively supplies the softened sludge to the receiving port 31.

A stator 32 is fixed in the rotary disk 26, an arcuate surface 33 that matches the circular hole 27 is provided in the stator 32, and a liquid feed pump 34 is provided below the vertical axis 12 with a rotary joint. Connected via the vertical axis 1
2 is provided with a liquid feed hole 35, and the liquid feed hole 35 is provided with a plurality of openings 36 for feeding the liquid into the hopper 3, and an air vent connected to the circular hole 27. The hole 37 is provided so as to be opened in the hopper 3 through the vertical hole in the vertical axis 12.

Air or a softening agent and an AE agent (air bubble generating agent) are pressure-fed by the liquid feeding pump 34 and supplied to the hopper 3.

A receiving port 42 provided at an upper portion of one end of a cylindrical casing 41 of the mixing device 40 is connected to a discharge port 39 provided at a lower portion of the other end of the tube body 30 through a tubular body 58. Then, the discharge port 60 of the solidifying agent supply pipe 59 is connected to the cylindrical body 58, and the solidifying agent such as a polymer improving material, lime or fly ash is stored in the suction port of the solidifying agent pressure feeding pump 61. The solidifying agent tank 38 is connected via a pipe line, the horizontal rotation shaft 43 is arranged at the center of the casing 41, and both ends of the casing 41 are
The end support member 44 and the end support member 45 are fixed.

At both ends of the casing 41,
A support member 46 is fixed to the horizontal rotation shaft 43, and both ends of three swivel shafts 47 arranged at equal intervals in the circumferential direction in the casing 41 are rotatably supported by each support member 46, Each supporting member 46 has a rotary shaft 47.
The three rotation drive devices 57 for driving the motors are fixed, and the revolution drive device 48 including a hydraulic motor for driving each support member 46 is fixed to the end support member 45, and the peripheral surface of the revolving shaft 47 is fixed. A large number of stirring members 49 are fixed to the casing 41, a discharge port 50 is provided in the lower part of the other end of the casing 41, and a mixture receiving port 52 is provided in the upper part of one end of the discharge conveyor 51. The conveyor 51 includes a screw conveyor 54 that is rotated by a drive device 53 composed of a hydraulic motor.

When treating the construction sludge by using the illustrated construction sludge treatment device, the construction sludge 56 in the construction sludge storage tank 1 is used by using the transportation device 55 such as a power shovel.
Is placed on the inclined sieve 8 and the construction sludge that has passed through the inclined sieve 8 and dropped is agitated by the agitator 2 with the AE agent for sludge softening or air added, and then swirled. Movable cutter 1 attached to the cutter support arm 16
7 and the fixed cutter 20 fixed to the top plate 18,
The lumps are crushed and then crushed and softened again by a horizontal rotary shaft 21 with a crushing blade 23 which is rotated by a drive device 22.

Next, the crushed and softened construction sludge is accommodated in a large number of circular holes 27, is then transferred by the transport conveyor 29 in the pipe body 30, enters the mixing device 40, and in the mixing device 40. The sludge and the solidifying agent are uniformly kneaded and discharged from the discharge port 50 as granular reclaimed soil.

[0016]

According to the present invention, a hopper 3 having an agitator 2 therein is provided near the construction sludge storage tank 1, and a crushing device 4 is provided below the hopper 3 and the crushing device 4 is provided. Since the continuous supply device 5 is provided in the lower part, the construction sludge containing lumps or clay generated in the construction work can be
It is possible to obtain a uniform construction sludge without containing large lumps, and thus it is possible to use the construction sludge for various purposes.

[Brief description of drawings]

FIG. 1 is a side view showing a construction sludge treatment device according to an embodiment of the present invention.

FIG. 2 is a plan view showing a construction sludge treatment device according to an embodiment of the present invention.

3 is a plan view showing a part of FIG. 2 in an enlarged manner. FIG.

FIG. 4 is a cross-sectional plan view showing the inside of the hopper.

FIG. 5 is a vertical sectional side view showing a hopper and a lower side portion thereof.

FIG. 6 is a cross-sectional plan view showing a crushing device in a hopper.

FIG. 7 is a vertical cross-sectional side view showing the lower part of the hopper.

FIG. 8 is a cross-sectional plan view showing the crushing device again.

FIG. 9 is a cross-sectional plan view showing a continuous feeding device.

FIG. 10 is a vertical cross-sectional side view showing the shape of a blade in the continuous feeding device.

FIG. 11 is a vertical sectional side view showing a uniform kneading device.

FIG. 12 is a vertical cross-sectional side view showing a part of FIG. 11 in an enlarged manner.

FIG. 13 is a vertical cross-sectional front view of the vicinity of the left end support member and the drive device in FIG.

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

15 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 1 Construction Sludge Storage Tank 2 Stirrer 3 Hopper 4 Crusher 5 Continuous Feeder 6 Ground 7 Support Frame 8 Inclined Sieve 9 Holding Frame 10 Drive Device 11 Drive Gear 12 Vertical Axis 13 Driven Gear 14 Stirring Blade 15 Inclined Gutter 16 Cutter Support Arm 17 Movable Cutter 18 Top plate 19 Opening 20 Fixed cutter 21 Horizontal rotating shaft 22 Drive device 23 Crushing blade 24 Horizontal hole 25 Opening 26 Rotating disk 27 Circular hole 28 Discharge port 29 Conveyor conveyor 30 Tube 31 Inlet 32 Stator 33 Arc surface 34 Liquid Delivery Pump 35 Liquid Delivery Hole 36 Opening 37 Air Venting Hole 38 Solidifying Agent Tank 39 Discharge Port 40 Mixing Device 41 Casing 42 Receiving Port 43 Horizontal Rotation Shaft 44 End Supporting Member 45 End Supporting Member 46 Supporting Member 47 Rotating Shaft 48 Drive device for revolution 49 Stirring member 50 Discharge port 5 1 Discharge Conveyor 52 Mixture Inlet 53 Drive Device 54 Screw Conveyor 55 Conveyor Device 56 Construction Sludge 57 Rotation Drive Device 58 Cylinder 59 Solidifying Agent Supply Pipe 60 Discharge Port 61 Solidifying Agent Pump 62 Bag Filter

Claims (1)

[Claims] 1. A hopper 3 having a stirrer 2 inside is provided near the construction sludge storage tank 1, a crushing device 4 is provided below the hopper 3, and a continuous feeding device 5 is provided below the crushing device 4. Construction sludge treatment equipment.