JP2003193508A - Self-running treatment device for mud soil granulation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mud soil granulation treatment device capable of easily being carried in or moved to a desired mud soil occurrence site by passing through a narrow place and granulating and treating mud soil in a large amount at the mud soil occurrence site. <P>SOLUTION: This mud soil granulation treatment device 1 constituted by a multishaft stirring machine 70, a hopper 11 for storing mud soil, a pump 31 for supplying a fixed amount of mud soil, and coagulation material storage devices 41, 51 is installed on a crawler type running device 100. The multishaft stirring machine 70 is arranged at the center in the direction of width of the crawler type running device 100, and the hopper 11 for storing mud soil, the pump for supplying a fixed amount of mud soil, and coagulation material storage devices 41, 51 are arranged on both sides in the direction of its width. When arranging the hopper 11 for storing mud soil, a part of a mud soil charging port is positioned just above the multishaft stirring machine 70, an engine 103 and a driver's seat are arranged close to one end part in the longitudinal direction of the crawler type running device 100, and a conveyor 20 is attached to the crawler type running device 100 in such a way that it forms up inclination and is positioned on its outside to constitute the self-running treatment device for mud soil granulation. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to construction work such as propulsion work, shield work, foundation work, dredging work and gravel,
The present invention relates to a self-propelled mud granulation processing apparatus that mixes mud generated in crushed stone manufacturing work with an aggregating material to granulate.

[0002]

[Prior Art] Propulsion work by pipe propulsion machine, shield work by shield machine, foundation work by vertical hole excavator, etc.
Mud generated in construction work such as dredging work, gravel and crushed stone manufacturing work, that is, soft soil with a high water content, is dehydrated as industrial waste and then landfilled at the final disposal site for disposal. . The treatment of such mud is extremely uneconomical because the dehydration treatment is expensive and the dehydrated mud must be discarded without being reused as industrial waste. Even if the mud is treated and disposed of in this way, recently, the difficulty of locating the final disposal site of industrial waste has become extremely serious.

Against this background, there is an increasing need for recycling mud generated in construction work and the like. From such a request, for mud that has not been used until now, the contractor himself mixes the solidifying material at the mud generation site and performs a modification treatment to make it equivalent to general-purpose construction residual soil with high strength. A technology that creates a utility value by reforming and directly conveys it from the reforming treatment site to the reuse destination and reuses it for various purposes such as roadbed material, backfill soil, residential land reclamation soil, embankment embankment, etc. Development is in progress.

As one of the developments of the technique, an attempt has been made to develop a mud granulation treatment apparatus for treating mud so as to granulate it. When the mud granulation process is performed, the granular mud product generated by the granulation process can be reused as a roadbed material. Further, in this case, if the strength of the granular mud product is increased, it can be reused as a roadbed material, and the added value of the treated mud can be increased, and its application can be expanded.

[0005]

However, since the mud granulating apparatus developed so far processes batches of mud, if the amount of mud to be processed is large, a great deal of granulation processing of the mud will occur. It took time and was not suitable for a large amount of granulation treatment of mud at the mud generation site. In particular, since the amount of mud generated during construction work is enormous, it is necessary to promptly process a large amount of mud at the mud generation site.

On the other hand, mud is generated in various construction works, gravel and crushed stone manufacturing work, etc., as described above, and the surrounding conditions of the place where it is generated are various. Therefore, a large amount of mud is granulated at the mud generation site. It is a very important issue for the mud granulation processing apparatus that not only can be processed but also that it can be easily carried into various mud generation sites.

[0007] For example, a construction site for constructing a foundation or gravel,
In some work sites where crushed stone is manufactured, the mud granulation processing device cannot be carried in unless it passes through a narrow place such as a narrow alley. In addition, at some construction sites where dredging is carried out, the mud granulation processing device cannot be carried into the mud generation site without passing through a narrow path near rivers and lakes. Further, in foundation work and dredging work, mud is generated at various places within the same construction site, so it is necessary to relocate the mud granulation processing device to the mud generation site at each place. In that case, for example, in the case of dredging work, it may be necessary to relocate the mud granulation processing device through the rugged ground along the river coast or through the rugged land of a wetland. In order to meet the diverse needs of customers and stimulate demand for mud granulation processing equipment, it is possible to easily carry in or move to the desired mud generation site in response to the difficult surrounding conditions as described above. It is necessary to develop a mud granulation processing device.

The present invention was created in order to meet such demands, and its technical problem is to easily carry in or move to a desired mud generation site through a narrow place or a severe terrain. Another object of the present invention is to provide a mud granulation processing apparatus that is suitable for mass-processing mud at a mud generation site.

[0009]

SUMMARY OF THE INVENTION In order to achieve these technical objects, the present invention includes a stirrer in which a large number of independent stirring blades are tilted with respect to a rotation axis and fixed, and the mud is wound together with the aggregating material by the stirring blades. A multi-screw agitator configured by arranging them in parallel so that they can be stirred and mixed with the aggregating material while shear crushing, a hopper for storing mud, and mud in the hopper for storing mud A mud feeder for feeding,
A coagulant reservoir for accumulating the coagulant for coagulating the mud in the multi-spindle agitator is provided, and the granular mud product produced by granulating the mud is discharged from the outlet of the multi-spindle agitator. The configured mud granulation processing device is installed on the crawler type traveling device, the mud storage hopper and the mud feeder are arranged on one side in the width direction of the crawler type traveling device, and the flocculant storage device is arranged on the other side. , A mud storage hopper and a mud feeder are placed between the mud feeder and the flocculant storage device in the longitudinal direction of the crawler type traveling device, and when the mud storage hopper is placed, A part of the crawler type traveling device is arranged directly above the multi-screw agitator, and the drive source for driving the drive parts of the mud granulation processing device and the crawler type traveling device and the driver's seat are long Located near one end in the direction,
A conveyor for transporting the granular mud products is attached to the crawler type traveling device so that one end side is located below the discharge port of the multi-spindle agitator and the other end side is inclined upward and is located outside the crawler type traveling device, A self-propelled mud granulation processing device was constructed.

When granulating mud with the mud granulating apparatus of the present invention, the mud and agglomerates stored in the mud storage hopper and the agglomerate reservoir are rotated by driving the multi-spindle agitator. Supply into the multi-axis stirrer. Then,
The multi-axis stirrer winds the mud together with the aggregating material into a stirring blade, shears and crushes it, and conveys it to the discharge side of the mud while subdividing. At this time, in addition to shear-crushing the mud with a stirring blade to subdivide the mud, the mud is actively stirred with both the shear-crushing and conveying operations of the mud with the stirring blade. The number of times of contact can be dramatically increased, and the coagulant can be uniformly mixed with the mud. Therefore, the mud is effectively flocculated, and free water is evenly bound among the innumerable flocculated soil particles, and even if the second flocculating material is not added depending on the soil quality of the mud, such as washing sludge, It is processed into a granulated state. As described above, since the muddy soil can be continuously and effectively granulated by the multi-axis stirrer, a large amount of muddy soil can be granulated.

In a conventional mud treatment device such as a mud solidification treatment device, the related equipment such as a mud storage hopper and a mud feeder were arranged in series in the front-rear direction with an agitator, so the captain was long. In the self-propelled mud granulation processing apparatus of the present invention, in particular, the mud is utilized by utilizing the surplus space on both sides of the multi-screw agitator that occurs when the multi-screw agitator is arranged in the longitudinal direction of the crawler-type traveling device. Since the storage hopper and the mud feeder and the flocculant reservoir are arranged on both sides of the storage hopper,
The captain can be significantly shortened compared to the conventional mud treatment device. In addition, when arranging the mud storage hopper that takes up space, since it was placed so that part of the mud input port was located directly above the multi-axis stirrer, the mud storage hopper, mud feeder, and agglomerate The material storage device can be stored in the crawler type traveling device without making the vehicle width wider than usual. In this way, the self-propelled mud granulation processing apparatus of the present invention shortens the machine length without widening the vehicle width, so that it can be easily carried into a mud generation site that cannot be carried in without passing through a narrow place. be able to.

In the self-propelled mud granulation processing apparatus of the present invention, the mud granulation processing apparatus is installed on the crawler type traveling apparatus, and the driving unit of the mud granulation processing apparatus and the crawler type traveling apparatus is driven. Since the drive source and the driver's seat are provided,
Even in severe terrain such as undulating ground and wetlands, it can be easily moved to the desired mud generation site by operating the crawler type traveling device, and can be installed easily.
Granulation processing of mud can be carried out promptly. In addition, the conveyor for transferring the granular mud products is installed on the crawler type traveling device so that one end side is located below the discharge port of the multi-spindle agitator and the other end side is inclined to the outside of the crawler type traveling device. Since it is installed, it does not take time to set up a conveyor so that the granular mud product discharged from the discharge port of the multi-axis stirrer can be transferred to a predetermined place such as a truck bed, and the granular mud product The transfer conveyor can be installed in a proper manner very efficiently. Furthermore, since the drive source for driving the drive unit of the mud granulation processing device and the crawler type traveling device is arranged near the end of the crawler type traveling device in the longitudinal direction where the equipment is not complicated, self-propelled mud Maintenance and inspection of the power system of the granulation processing device can be smoothly performed.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be clarified by describing concrete embodiments showing how the present invention is actually embodied with reference to FIGS. 1 to 7. To do. FIG. 1 is a plan view showing a part of a self-propelled mud granulation treatment apparatus according to an embodiment of the present invention in a cutaway manner, and FIG.
-II line sectional view, FIG. 3 is an arrow view of the arrow III-III direction of FIG. 2, FIG. 4 is an arrow view of the arrow IV-IV direction of FIG.
2 is a sectional view taken along the line V-V in FIG. 2, FIG. 6 is a partially cutaway view taken along the line VI-VI in FIG. 2, and FIG.
It is a II-VII sectional view taken on the line.

The mud granulation processing apparatus indicated by reference numeral 1 in this embodiment is a multi-axis stirrer 70, which will be described later in detail, a mud storage device 10, mud supply means 30, and a first flocculating material which will be described in detail later. The supply means 40, the second coagulant supply means 50, and the solidification material supply means 60 are provided, and the mud is supplied from the mud supply part 70b behind the multi-axis stirrer 70, and the mud is granulated to generate granules. The mud product is configured to be discharged from the mud discharge port 70c in front of the multi-axis stirrer 70. The self-propelled mud granulation processing apparatus of this embodiment is configured by installing the mud granulation processing apparatus 1 thus configured on the crawler type traveling apparatus 100. In addition, in this specification, the technical content is described as "rearward" on the side where mud is charged and "forward" on the side where granulated mud is discharged.

First, the technical contents of the mud granulation processing apparatus 1 will be described with reference to FIGS. 1 to 7.

In these figures, 10 is a multi-axis stirrer 7.
A mud storage device configured by storing a device for storing mud supplied to 0 and a device incidental thereto, 11 is a mud storage hopper for charging the mud by a hydraulic excavator bucket 200 or the like, and storing the mud, 12 is a stirring device installed in the mud storage hopper 11 for stirring the mud charged in the mud storage hopper 11, and 13 is a mud storage hopper 11 installed on the mud charging port of the mud storage hopper 11. The vibrating screen for classifying the mud thrown in to remove contaminants such as large stones, 14a is a mud guard in front for preventing the mud from scattering forward such as the driver's seat when the mud is thrown into the storage hopper 11, Similarly, 14b is a rear mudguard for preventing the mud from scattering backwards, and 14c is a lateral mudguard for preventing the mud from scattering laterally.

The mud storage device 10 is, in the example shown here,
The mud soil hopper 11 is provided with a stirrer 12 and a vibrating screen 13. The mud soil generated during construction work is classified by the vibrating screen 13 to remove impurities, and then stored in the mud soil hopper 11. To do. Mud storage hopper 1
The upper end portion of 1 and the vibrating screen 13 are inclined downward toward the side of the crawler type traveling device 100 so that mud can be easily loaded into the bucket 200 of the hydraulic excavator or the like. The stirring device 12 includes a large number of stirring blades 12a for stirring the mud in the mud storage hopper 11, a stirring shaft 12b in which the large number of stirring blades 12a are axially arranged and radially mounted, and the stirring shaft. Drive device 1 provided at one end of 12b and rotationally driving stirring shaft 12b
2c and the stirring shaft 12b provided at the other end of the stirring shaft 12b
And a bearing 12d for supporting the shaft. The drive device 12c and the bearing 12d are installed below the inside of the mud storage hopper 11 so as to face the side walls thereof.

The stirring device 12 stirs the mud in the mud storage hopper 11 by rotating a large number of stirring blades 12a by a driving device 12c, so that the mud is deposited and solidified on the bottom of the mud storage hopper 11. And prevents the mud suction pipe 32 from being easily blocked. Further, by stirring the mud, the temperature of the mud in the mud storage hopper 11 is kept uniform, and the mud can be favorably processed by the multi-axis stirrer 70 described later.

Reference numeral 30 denotes a mud supply means for supplying the mud in the mud storage hopper 11 to the multi-shaft agitator 70, and 31 is a mud capable of supplying a fixed amount of the mud to the multi-shaft agitator 70 in a fixed amount. A mud constant quantity supply pump as a feeder, 32 is a mud constant quantity supply pump 3 for mud in the mud storage hopper 11.
The mud suction pipe for sending the mud to the suction side of No. 1, 33 is mud discharged from the mud metering supply pump 31
This is a mud discharge pipe for sending to the mud supply unit 70b of No. 0.

The mud supply means 30 is constituted by providing a mud quantitative supply pump 31, a mud suction pipe 32 and a mud discharge piping 33, and the mud in the mud storage hopper 11 is fed by the mud constant supply pump 31 to the mud suction pipe. After sucking through 32, through mud discharge pipe 33, mud input port 33a
And feeds it into the mud feed section 70b of the multi-axis agitator 70 from the mud feed port 33a. When the mud metering pump 31 is used in the mud feeder constituting the mud feeding means 30, a desired amount of mud corresponding to the amount of the mud to be granulated by the multi-axis stirrer 70 is multi-axis stirred. A fixed amount can be supplied into the mud supply unit 70b of the machine 70.

Here, the mud metering supply pump 31 is used as the mud supplying machine, but a screw conveyor as used in the first flocculating material supplying means 40 and the solidifying material supplying means 60 which will be described later can also be used. . Even when a screw conveyor is used, by controlling the rotation speed of the screw blades, a desired amount of mud corresponding to the amount of mud to be treated can be quantitatively supplied into the multi-axis stirrer 70. When the mud to be treated is limited to mud-like mud having a remarkably high water content ratio, a constant quantity supply pump such as a tube pump (squeeze pump) capable of constant quantity supply of the liquid material may be used as the constant quantity mud supply pump 31. .

Reference numeral 40 denotes a first flocculating material supplying means for feeding the first flocculating material for binding free water in the mud between the soil particles into the multi-spindle agitator 70, and 41 denotes the first flocculating material. A first flocculating material storage hopper serving as a first flocculating material reservoir for storing 42, 42 is a desired supply amount of the first flocculating material in the flocculating material storage hopper 41 to the multi-screw agitator 70. A first aggregating material supply device by a screw conveyor capable of supplying a fixed amount, 42e is a first for discharging the first aggregating material carried by the aggregating material supply device 42 and supplying it to the multi-shaft agitator 70. 2 is a first coagulant discharge unit of the coagulant supply device 42 of FIG.

The first aggregating material supply means 40 is provided with a first aggregating material storage hopper 41 and a first aggregating material supply device 42. The first coagulant supply means 40 sends the solid first coagulant in the first coagulant storage hopper 41 to the first coagulant discharge part 42e by the first coagulant supply device 42. And supplies it into the mud supply unit 70b of the multi-axis stirrer 70. As the first aggregating material is solid, a screw conveyor as shown in FIG. 6 is used for the first aggregating material supply device 42. In the example shown here,
Although the solid first aggregating material is used, a liquefied first aggregating material is used instead of the first aggregating material storage hopper 41 as a first aggregating material reservoir. A first flocculating agent supply device 42 is used while using a flocculating agent storage tank.
Alternatively, a positive displacement pump may be used instead of the screw conveyor.

The first flocculating material supply device 42 by this screw conveyor covers the periphery of the screw blade 42c with a casing 42b, and fixes a rotary drive device 42a for rotating the screw blade 42c to one end of the casing 42b. Are configured. Further, a first coagulant supply port 42d is provided below the first coagulant storage hopper 41, and a first coagulant discharge part 42e is provided at the other end side of the casing 42b. When such a screw conveyor is used for the first flocculant supply device 42, the rotation drive device 42
By controlling a and adjusting the rotation speed of the screw blade 42c, it is possible to quantitatively supply an appropriate amount of the aggregating material according to the type of the first aggregating material used, the water content ratio of the mud, the soil quality, and the like. . Therefore, it is possible to always keep the mixing ratio of the first coagulant to the mud at an appropriate value and effectively use the expensive coagulant. Even when a liquefied first agglomerate is used and a positive displacement pump is used for the first agglomerate supply device 42, the first agglomerate can be quantitatively supplied and the same effect can be obtained. .

Reference numeral 50 is a second flocculating material supplying means for feeding the second flocculating material for granulating the mud mixed with the first flocculating material into the multi-spindle agitator 70, and 51 is the second flocculating material. A second agglomerate storage tank as a second agglomerate reservoir for storing the material, 52 is provided between the agglomerate storage tank 51 and a second agglomerate input port 53 (see FIG. 2). The second agglomerate in the second agglomerate storage tank 51 can be quantitatively supplied to the multi-spindle agitator 70 in a desired supply amount.
A coagulant supply device 53 for the second coagulant storage tank 51
A second aggregating material input port having an aggregating material input port for supplying the second aggregating material in the multi-screw agitator 70, 54 is a second aggregating material storage tank 51 and a second aggregating material supply Device 5
2 is a coagulant suction pipe for connecting with the second coagulant, and 55 is a coagulant discharge pipe for connecting the second coagulant supply device 52 and the coagulant input port 53.

The second coagulant supply means 50 includes a second coagulant storage tank 51, a second coagulant supply device 52, a coagulant input port 53, a coagulant suction pipe 54, and a coagulant discharge pipe 55. It is provided and configured. The second coagulant supply means 50 uses the second coagulant supply device 52 to disperse the solution-like second coagulant mixed in water in the second coagulant storage tank 51 with the coagulant suction pipe 54. After being sucked through, it is sent to the second coagulant input port 53 through the coagulant discharge pipe 55, and is supplied from the coagulant input port of the port 53 into the second coagulant supply part 70d of the multi-shaft agitator 70.

In the example shown here, as the second aggregating material,
Since the solution-type aggregating material mixed with water is used to quantitatively supply it into the multi-axis stirrer 70, the second aggregating material supply device 52 appropriately adjusts the discharge capacity according to the rotation speed. A positive displacement pump that can be used is used. When such a positive-displacement type positive displacement pump is used for the second flocculant supply device 52, an appropriate amount of flocculant is quantitatively fed according to the type of the second flocculant to be used, the water content ratio of the mud, the soil quality, etc. can do. Therefore, the mixing ratio of the second aggregating material to the mud can be always maintained at an appropriate value, and the expensive aggregating material can be effectively used. A solid agglomerate is used as the second agglomerate, a hopper for aggregating agglomerate is used as a second agglomerate reservoir, and a second agglomerate feeding device 52 is provided with the screw conveyor to produce a second agglomerate. Even if the aggregating material is supplied in a fixed amount into the multi-axis stirrer 70, the same effect is obtained.

The first aggregating material and the second aggregating material supplied into the multi-spindle agitator 70 function to agglomerate the mud to be treated and granulate the mud, that is, to granulate the mud. do. The first aggregating material is used as an indispensable element when granulating mud, and the second aggregating material can be omitted depending on the soil quality of the mud to be treated. If the water content of the mud is not significantly higher than about 150% (150 weight of water to 100 weight of dry soil), the first
The amount of the aggregating agent added is about 0.2 to 0.3% by weight, which is a very small amount. The second aggregating material may not be added, but a small amount is sufficient even if it is added. In addition,
The aggregating material will be described in detail later.

Reference numeral 60 denotes a solidifying material supplying means for supplying a solidifying material for solidifying the granulated mud into the multi-spindle agitator 70.
Reference numeral 61 is a hopper for storing a solidified material for inputting the solidified material, 6
2 is a solidifying material supply device by a screw conveyor capable of quantitatively supplying the solidifying material in the solidifying material storage hopper 61 to the multi-spindle agitator 70, and 62e is the solidifying material supplying device 6
It is a solidified material discharge part of the solidified material supply device 62 for discharging the solidified material carried in 2 and supplying it to the multi-axis stirrer 70. Since the detailed structure of the solidifying material supplying means 60 is basically the same as that of the first aggregating material supplying means 40, the illustration thereof is omitted, and the reference numerals related to the detailed structure are shown in FIG. It is shown in parentheses below the reference numeral relating to the aggregating material supplying means 40.

The solidified material supplying means 60 is constructed by providing a solidified material storage hopper 61 and a solidified material supply device 62. The solidified material supplying means 60 sends the solidified solidified material in the solidified material storage hopper 61 to the solidified material discharge portion 62e by the solidified material supply device 62, and the solidified material supply portion 70 of the multi-axis stirrer 70.
Supply in e. Since the solidified material is used as the solidified material, the solidified material supply device 62 uses a screw conveyor as shown in FIG. The solidified material supplying device 62 using the screw conveyor covers the periphery of the screw blade 62c with a casing 62b, and includes a rotation driving device 62a for rotating the screw blade 62c in a casing 62b.
Is fixed to one end of the first coagulant supply device 42, and is basically the same as the structure of the first flocculant supply device 42. Further, a solidified material supply port 62d is provided below the solidified material storage hopper 61, and a solidified material discharge portion 62e is provided on the other end side of the casing 62b.

The solidifying material supplying device 62 controls the rotation driving device 62a to quantitatively supply an appropriate amount of the solidifying agent according to the required quality of the granular mud product, and to supply the solidifying material to the mud. Be able to keep the mixing ratio at an appropriate value. The solidifying material supplied into the multi-axis stirrer 70 functions to modify the mud so as to increase the strength of the granular mud product, and, for example, a cement-based or lime-based solidifying material has such a function.

When such a solidifying material is added to mud and mixed, quick lime in the solidifying material causes digestion and absorption reaction (hydration reaction).
An exothermic reaction occurs to absorb the water content in the mud into the quicklime and evaporate it with heat to reduce the water content of the mud.
In this way, the soil with reduced water content is not only dehydrated, but also the agglomeration and pozzolanic reaction of the sediment due to the calcium ions in the quicklime and the carbonation reaction with the residual quicklime that did not participate in this reaction. As a result, the strength is increased and solidified, and the water is reformed so that it is not re-sludged even if it is reused when water enters.

The solidifying material is supplied into the multi-screw agitator 70 mainly for the purpose of increasing the strength of the granular mud product by utilizing such a reaction, and is carried out as necessary. For example, when the granular mud product is used as a roadbed material or roadbed material on the road surface where strength is required, a solidifying material is added to improve strength, and it is used as planting soil that does not require strength. When doing so, it is not always necessary to add a solidifying material. Also, when used for applications where alkaline is disliked, no solidifying material should be added.
In this way, whether or not to add the solidifying material and the amount thereof are selected depending on the quality of the granular mud product and the purpose of use of the granular mud product.

Here, the aggregating material supplied to the multi-screw agitator 70 will be described. Flocculants are agents that help facilitate the aggregation of soil particles in mud. The aggregating material can be roughly classified into an inorganic aggregating material and an organic polymer aggregating material. Of these, typical inorganic flocculants include ferric sulfate, ferric chloride, aluminum sulfate (sulfuric acid band), polyferric chloride (PFC),
Mention may be made of iron or aluminum compounds such as polyaluminum chloride (PAC). This inorganic flocculant is
It is mainly used in combination with an organic polymer flocculant as a flocculating aid or a flocculating aid.

As the organic polymer coagulant, a synthetic polymer coagulant is mainly used, and the synthetic polymer coagulant can be classified into nonionic, anionic and cationic ones. Among them, the nonionic one is a water-soluble polymer having almost no dissociative group in the molecule, and an amide group,
It has a hydroxyl group, an ether group, etc. as a hydrophilic group. The anionic one is a water-soluble polymer having a negative charge in water and has a carboxyl group, a sulfone group or the like as a dissociative group. The cationic one has an amino group in the molecule, and dissociates the amino group to give a positive charge to the polymer in water. Nonionic and anionic synthetic polymer agglomerates generally have a higher cohesive force as they have a higher molecular weight. Representative examples of the nonionic and anionic synthetic polymer flocculants include polyacrylamide and its hydrolyzate. Typical examples of the cationic synthetic polymer aggregating material include polyaminoalkyl (meth) acrylate.

The coagulant, when properly mixed with the mud, aggregates the soil particles in the mud and binds the free water between the soil particles so as to wrap them between the collected soil particles. Therefore, unless the water content of the mud is remarkably high, the soil particles aggregate with the surface side becoming apparently dry with little moisture,
Granules of mud are produced in a non-sticky state.

In general, the soil particles have an electric double layer that is composed of a fixed layer that surrounds the outside and a diffusion layer (counter ion portion) that surrounds the outside and has a high hydrogen ion concentration. When two soil particles with such an electric double layer approach each other and both diffusion layers overlap each other, the ion concentration in the overlapping diffusion layers rises, which causes the soil particles to repel each other and the soil Inhibits particle assembly. Therefore, a large number of soil particles are dispersed to form a mud. In short, mud consists of a large number of fine soil particles and free water between the soil particles, but since the surface of the soil particles is generally negatively charged, each soil particle repels each other and stabilizes. Keep the dispersed state,
As a result, it maintains the state of muddy mud without hardening. Therefore, in order to facilitate the aggregation of soil particles in mud, it is necessary to suppress the total electric charge of the electric double layer, which is a factor that hinders the aggregation, and to compress the electric double layer (decrease the thickness of the electric double layer. ), The mud can be aggregated by suppressing or compressing the total electric charge of the electric double layer.

Among them, in order to suppress the total electric charge of the electric double layer, it is effective to neutralize the electric charge so as to reduce the total electric charge amount as much as possible. , A cationic synthetic polymer agglomerate or an inorganic agglomerate can be selected. In addition, the aggregating material useful for compressing the electric double layer can be selected from inorganic aggregating materials. Furthermore, the aggregation mechanism includes cross-linking condensation, which has a different principle from the above aggregation mechanism. This cross-linking condensation collects the soil particles by adsorption cross-linking (ionic bond, hydrogen bond) to the soil particles by the functional group of the polymer, and far exceeds the suppression of the total electric charge of the electric double layer and the aggregation due to compression. Exhibits cohesive power. As the aggregating material for carrying out the cross-linking condensation, an appropriate one is selected from nonionic, anionic and cationic aggregating materials.

The agglomerates described above are the first agglomerates and the second agglomerates.
The purpose of the coagulant, which is to be used, and the type of mud, whether the mud is organic or inorganic, and the mud soil particle size, which corresponds to viscosity, silt, colloid, etc. Depending on the properties of the mud, such as the water content of the mud, etc., it is appropriately selected and used. For example, ordinary mud can be aggregated with anionic or nonionic flocculants, but some mud generated during construction work has bentonite added during construction. Since it is not possible to granulate with an anionic or nonionic flocculant alone, an anionic or nonionic flocculant is used as the first flocculant and a cationic flocculant as the second flocculant. By adding, the mud is granulated. In addition, since the performance of the polymer flocculent material is highly dependent on PH, if the mud is acidic, a cationic or nonionic one is used, and if the mud is alkaline, an anionic or nonionic one is used. In some cases, consider using nonionic ones.

The first flocculating material and the second flocculating material both function to flocculate the mud, but the first flocculating material mainly functions to bind free water in the mud between the soil particles. Depending on the soil quality of the mud to be treated, an appropriate one is selected from the agglomerates as exemplified above and used. in this way,
The first flocculant acts to collect soil particles in the mud and bind free water in the mud between the soil particles. Therefore, if the flocculant is appropriately selected, the In some cases, the mud can be granulated without using the coagulant. The second aggregating material is used in combination with the first aggregating material to promote the agglomeration of the mud when the agglomeration cannot be sufficiently granulated simply by stirring and mixing the first aggregating material. Choose in relation to. Here, the first
An example of the case where the second aggregating material is used in combination with the first aggregating material, assuming that mud is difficult to be granulated by the single use of the aggregating material, is shown below.

According to experiments, when an anionic acrylic synthetic polymer compound is used as the first aggregating agent and a cationic basic polyinorganic salt is used as the second aggregating agent, the aggregating agent alone is used. Mud that could not be granulated by use could also be granulated. The acrylic synthetic polymer compound, which is the first aggregating material, has a carboxyl group or the like as a dissociative group (functional group), and this hydrophilic dissociative group cross-links and adsorbs a large number of soil particles in the mud, which is extremely large. Exhibits a cohesive effect.

With respect to this point, the acrylic synthetic polymer compound as the first flocculating material forms a polymer network in which the chains of the polymer are irregularly entangled in a loop shape so as to form a large number of rings. is doing. When such a polymer compound is mixed with mud, the polymer ion decomposes, and the counterion (an ion having a charge opposite to the dissociation group, that is, a positive ion) diffuses to the outside of the loop polymer chain. A negative charge remains in the hydrophilic dissociative group fixed on the chain of the hydrophobic polymer. As a result, a large number of negative charges remaining in the dissociative group repel each other, the ring of polymer chains expands and swells, and the hydrogen-bonding action of hydrogen in the carboxyl group causes the dissociative group to react in the mud. It bonds with oxygen on the surface of soil particles to form a hydrogen bond and cross-links and adsorbs many soil particles. In that case, since many soil particles are three-dimensionally adsorbed by one dissociative group, many soil particles aggregate and bind free water in the mud between the soil particles, and the mud is apparently The water content will be reduced.

If the mud is not granulated even if the first coagulant is sufficiently mixed with the mud, this time, a positive ionic property is added to the mud sufficiently mixed with the first coagulant. The cationic basic polyinorganic salt having is added as a second flocculant. Then, the concentration of positive ions increases, and some of the positive ions enter the swollen ring of polymer chains. Causes electrical reduction. That is, positive ions enter into the ring of chains forming the polymer network, and positive ions in many chain rings in this polymer network and negative charges of dissociative groups on the chains of the polymer Because they attract each other, the ring of these polymer chains narrows and the polymer network contracts. As a result, the soil particles in the muddy water that were adsorbed and wrapped in the polymer network contracted while the free water was being bound together with the contraction of the polymer network. To do.

According to the experiment, in the mud,
In some cases, the first aggregating material can be used alone and granulated without using the second aggregating material together. An example is mud called cleaning sludge. To make gravel and crushed stone,
The rock fragments and earth and sand cut out from the mountains are classified by a classifier such as a vibrating screen to adjust the particle size of the earth and sand to a predetermined size, and then washed with water. It is a mud with a high sand content that concentrates muddy water.

Next, the technical contents of the multi-axis stirrer 70 for adding such aggregating material and solidifying material to the mud and stirring and mixing will be described.

Reference numeral 70 denotes a multi-axis stirrer in which a plurality of stirrers 71 are arranged in parallel in a casing 70a so that mud and agglomerate can be wound by a stirring blade 71b and stirred and mixed while shearing and crushing. A casing fixed to the support frame 102a and housing the agitator 71, 70b is provided on the rear end side of the multi-axis agitator 70, and the mud for granulation processing and the first agglomerate are the mud discharge pipe 33 and the first mud discharge pipe, respectively. Mud supply unit 70c supplied through the flocculate discharge unit 42e
Is a mud discharge port provided on the front end side of the multi-spindle agitator 70 for discharging the mud granulated by the multi-spindle agitator 70, and 70d is provided in front of the mud feed unit 70b and has a second flocculating material
Second coagulant supply unit 70e supplied through the coagulant input port 53, and 70e is a solidification material supply unit provided in front of the second coagulation material supply unit 70d and supplied with the solidification material through the solidification material discharge unit 62e. Is.

The multi-axis stirrer 70 is also referred to as a paddle mixer, and a plurality of stirrers 71, which will be described later, are provided side by side so as to squeeze the mud together with the aggregating material and the solidifying material by the stirring blades 71b. It is configured so that it can be stirred and mixed with the aggregating material while crushing. As shown in FIG. 1, the multi-spindle agitator 70 includes a mud storage device 10 and a mud supply means 3.
0 is provided, and on the side opposite to this, from the front of the mud supply unit 70b toward the rear of the mud discharge port 70c,
First coagulant supply means 40, second coagulant supply means 50
And the solidifying material supplying means 60 are sequentially provided, and the mud supplying section 70 is provided.
b, the second flocculating material supply unit 70d and the solidifying material supply unit 70e
Through the interior of the casing 70a. Then, the mud supplied from the mud supply unit 30 into the mud supply unit 70b is granulated by the aggregating material, solidified by the solidifying material, and discharged to the mud discharge port 70c.

Reference numeral 71 denotes a stirrer, which is constituted by fixing a large number of independent stirring blades 71b inclined downward toward the front to a rotary shaft 71a, and a plurality of stirrers are provided. 71a is a stirrer which is rotationally driven by a rotary driving device 71c. Rotary shaft of machine 71, 71
Reference numeral b is a stirring blade provided in large numbers at predetermined intervals on the rotating shaft 71a, 71c is a rotary drive device installed at the rear end of the casing 70a of the stirrer 71 and driving each stirrer 71, 7
1d is a rotary shaft 7 fixed to the front end of the casing 70a.
1a is a bearing on the front end side.

The rotary shaft 71a of each agitator 71 is supported by a rotary drive device 71c and a bearing 71d, and the rotary drive device 7
It is rotationally driven by 1c. Stirring blade 7 of each stirrer 71
The screw blades 1b are formed independently of each other, unlike the screw blades continuously formed in a spiral shape. The stirrer 71 uses such an independent stirring blade 71b as the rotating shaft 7
It is configured by fixing a large number to 1a. Many stirring blades 71b
Are provided so as to incline downward toward the front as shown in FIG. 2, and are arranged in parallel to each other. Since the many stirring blades 71b are inclined downward toward the front in this way, each time the mud taken into the casing 70a passes through each stirring blade 71b,
The mud can be gradually moved forward. The rotation driving device 71c is configured to variably control the number of rotations, and can appropriately adjust the number of rotations of the rotation shaft 71a of each agitator 71.

Therefore, the multi-screw agitator 70 can convey the mud in the casing 70a by the amount of conveyance according to the rotation speed of the rotary drive device 71c, and further, according to the amount of mud generated at the construction site. By controlling the number of rotations of the rotary drive device 71c by this, the throughput of the mud to be granulated can also be adjusted appropriately. In this mud granulation processing apparatus, the first flocculating material and the second flocculating material are related to the fact that the rotational speed of the rotation driving device 71c is variably controlled in this way to adjust the processing amount of the mud. And a flocculating material supply device 42, 52 for quantitatively supplying a solidifying material and a solidifying material supplying device 62
Therefore, by controlling the rotation speeds of the aggregating material supply devices 42 and 52 and the solidifying material supply device 62 according to the amount of the supplied muddy soil by the muddy soil constant supply pump 31, the first amount corresponding to the amount of the supplied muddy soil is controlled. The aggregating material, the second aggregating material and the solidifying material can be supplied in a fixed amount, and the mixing ratio of the mud and these materials can be adjusted to an appropriate value.

The multi-axis stirrer 70 is constructed by arranging two or more desired number of stirrers 71 so that the rotating shafts 71a are parallel to each other. In that case, it arrange | positions so that many stirring blades 71b of each stirring machine 71 may enter between the stirring blades 71b of the stirring machine 71 which adjoins. That is, the agitating blades 71b of each agitator 71 are arranged to lap adjacent to each other in the radial direction, and the agitating blades 7 of each agitator 71 are also arranged.
1b is staggered in phase with the stirring blade 71b of the adjacent stirrer 71 in the direction of the rotation axis and arranged so as not to interfere with each other.
The stirring blades 71b of the pair of adjoining stirrers 71 are provided so that the respective stirring blades 71b are inclined as described above, and even when the stirring blades 71b are rotated in either the same direction or the opposite direction, The stirring blade 71b allows the mud to be caught and sheared and crushed.

Each stirring blade 71b stirs the mud when shearing and crushing it. In addition, each stirring blade 71
As for b, the mud is moved forward as described above, but the mud is also stirred at this time. That is, the mud moves with deformation when it is moved forward by the stirring blade 71b, and when the mud deforms, relative movement occurs between the soil particles in the mud. Therefore, even when the mud is being conveyed by the multi-axis stirrer 70, the soil particles are constantly stirred, and thus the first coagulant, the second coagulant and the solidifying material are stirred and mixed. The Rukoto.

Incidentally, comparing the multi-screw agitator 70 having such a positive stirring function with a screw conveyor which is often used for conveying mud, the screw conveyor has a function of exclusively moving the mud and shears and crushes the mud. Of course, it does not have a function to do so, but it does not have a positive stirring function. That is, when the mud soil is conveyed, the screw conveyor moves the mud soil in parallel while contacting the screw blades and the casing without causing any deformation, so that the soil particles in the mud portion in contact with the screw blades or the casing are slightly agitated. However, it does not have a positive stirring function.

In this mud granulation processing apparatus, mud is mixed with the multi-axis agitator 70 without using such a screw conveyor.
Since the aggregating material is supplied into the multi-axis stirrer 70 while being conveyed by, the muddy soil is shredded and subdivided while being positively accompanied by the operations of both shearing and breaking the muddy soil by the stirring blade 71b. It is possible to stir the mixture, and thereby, the number of times the mud is brought into contact with the agglomerate can be dramatically increased, and the agglomerate can be uniformly mixed with the mud. Therefore, the mud is certainly aggregated when it is discharged to the mud discharge port 70c. The mud thus aggregated has free water bound between the soil particles aggregated by aggregation, but the surface is in the form of dry particles with almost no moisture. As for the solidifying material, since the mud is actively stirred by the same mechanism as the above-mentioned mechanism, the number of times the mud touches the solidifying material can be dramatically increased. Can be mixed uniformly.

The mud storage tank 11 supplied by the mud supply means
The mud inside is granulated by the mud granulation processing device using the multi-axis stirrer 70, and the operation when performing the granulation processing will be described. In explaining the action, for convenience of explanation, first, it is assumed that the first coagulant and the second coagulant are supplied from the solidification material supply means 60 without supplying the solidification material. Explain.

First, while the multi-spindle agitator 70 is rotationally driven, the mud constant amount supply pump 31 is driven to drive the mud to the multi-spindle agitator 7.
It is supplied to the inside of 0 from the mud supply part 70b. Further, the first coagulant supply device 42 is driven to supply the first coagulant into the multi-axis stirrer 70 from the mud supply part 70b, and the solidification material supply device 62 is stopped. Then, the multi-axis stirrer 70
Conveys the mud together with the first aggregating material into the stirring blade 71b, shears and crushes and subdivides it into the mud discharge port 70c side. At this time, in addition to shearing and crushing the mud with the stirring blade 71b to subdivide the mud, the mud is actively stirred with both the shearing and crushing operation of the mud with the stirring blade 71b. The number of times the mud touches the agglomerate can be dramatically increased, and the first agglomerate can be uniformly mixed with the mud. Therefore, the mud is surely aggregated, and free water can be evenly incorporated among the numerous aggregated soil particles.

When the mud cannot be granulated by such a coagulation treatment, the second coagulant supply device 52 is driven in parallel with the supply of the first coagulant to increase the amount of the second coagulant. It is supplied into the shaft agitator 70 from the second aggregating material supply unit 70d. Then, the multi-axis stirrer 70
Is mixed with the second aggregating material in mud having a small amount of dampness that is aggregated with the first aggregating material and contains free water. That is,
Since the mud is actively stirred by the same mechanism as when mixing the first coagulant with the mud, the number of times the mud touches the second coagulant can be dramatically increased, and the first coagulant can be increased. Similarly to, the second coagulant can be uniformly mixed with the mud. Therefore, the mud aggregated by the first aggregating material is granulated by the second aggregating material when discharged to the mud discharging port 70c, and the granular mud product is discharged to the mud discharging port 70c to be conveyed by the belt conveyor 20. Transferred to a transportation device such as a truck.

Thus, in this mud granulation processing device,
Regardless of whether the first coagulant is used to granulate the mud or the second coagulant is used to granulate the mud, the mud granulation process is continuously performed by the multi-axis stirrer 70. In addition to the above, the number of times mud is brought into contact with the first coagulant and the second coagulant can be determined by the multi-axis stirrer 7.
It is also possible to effectively perform the granulation treatment of the mud by dramatically increasing it to 0 and uniformly mixing the coagulant with the mud, and it is possible to perform the granulation treatment of the mud in a large amount.

Although the solidifying material is not supplied to the multi-axis stirrer 70 in the above description, when it is necessary to increase the strength of the granular mud product, the first step is performed when the above granulating treatment is performed. In parallel with supplying the first aggregating material and the second aggregating material, the solidifying material is supplied from the solidifying material supply unit 70e into the multi-axis stirrer 70 by driving the solidification supplying device 62. Then, the multi-axis stirrer 70 positively stirs the mud by the same mechanism as when mixing the first aggregating material with the mud, so that the number of times the mud touches the solidifying material can be dramatically increased. As with the first flocculating material, the solidifying material can be uniformly mixed with the mud. As a result, while effectively utilizing a part of the free water in the mud in the closed heat-insulating space in the casing 70a of the multi-axis stirrer 70, the digestion and absorption reaction of the quicklime component in the solidifying material proceeds, The mud granulated with the aggregating material can be solidified, which can increase the strength of the granular mud product.

Here, an example in which the first coagulant supply means 40, the second coagulant supply means 50, and the solidification material supply means 60 are provided in the multi-axis stirrer 70 has been shown, but the soil quality of mud soil such as cleaning sludge is shown. In some cases, the mud can be granulated by using the first coagulant alone, and the solidifying material is used only when it is necessary to increase the strength of the granular mud product. Material supplying means 50 and solidifying material supplying means 60
Can be omitted as appropriate. The solidification treatment of the granular mud product can be performed only when it is desired to increase the strength of the granular mud production product by separately disposing a solidification treatment device configured by providing the solidifying material supply means 60 in the stirring device. .

Next, various technical means adopted when the mud granulation processing apparatus 1 described above is installed on the crawler type traveling apparatus 100 to form a self-propelled mud granulation processing apparatus will be described.

This self-propelled mud granulation processing apparatus is, in addition to the mud granulation processing apparatus 1 already described, as a device related thereto, the granular mud discharged from the mud discharging port 70c of the multi-spindle agitator 70. The belt conveyor 20 for taking in the product and transferring it to a transportation device such as a truck, and the engine 103 as a power source for driving the mud granulation processing device 1, the belt conveyor 20, and the drive parts of the crawler type traveling device 100. And a driving operation panel 10 for operating the drive unit
5 and the driver's seat and other various devices useful for the granulation treatment of mud are mounted on the crawler type traveling device 100 and rationally arranged as described later so that the device can travel in the site where mud is generated. Is configured.

First, peripheral devices related to the mud granulation processing apparatus 1 will be described. Reference numeral 20 is a belt conveyor for transferring the granular mud product discharged from the mud discharge port 70c after the mud is granulated by the multi-axis stirrer 70, and 100 is a pair of crawler type travels. Crawler-type traveling device configured by connecting bodies 101a and 101b with a vehicle body frame 102, 101a and 101b
Are left and right crawler type traveling bodies that travel on the ground by using a crawler belt driven by a sprocket as a propelling means.

The belt conveyor 20 is installed with its rear end portion attached to the front of the vehicle body frame 102 so as to be attachable / detachable and pivotally attached by a pin. In that case, the belt conveyor 20
By arranging the chute 21 at the rear end portion below the mud discharge port 70c, and suspending the intermediate portion so that the height position can be adjusted by the support member 22 provided at the front end portion of the front base 106a, It is installed so that it is tilted upward toward the front. This type of belt conveyor for transferring treated mud is usually installed independently of the mud treating device, and its chute is positioned below the discharge outlet of the treated mud and inclined upward toward the front. , Was supported on the ground with feet and installed in a predetermined manner.
In this self-propelled mud granulation processing device, the belt conveyor 20
Is installed in the crawler type traveling device 100 in advance in the above-described manner, the mud discharge port 70c of the multi-axis stirrer 70 is installed.
It does not take much time to install the belt conveyor 20 in a predetermined manner so that the granular mud product discharged from the chute 21 can be received by the chute 21 and transferred to a predetermined place such as a truck bed. Can be done efficiently. Further, since the belt conveyor 20 can be detached, it can be detached if necessary and is convenient to handle.

Reference numeral 102 denotes a pair of crawler type traveling bodies 101.
A body frame for connecting a and 101b at regular intervals to support various devices mounted on a crawler type traveling device, 1
Reference numeral 03 is an engine for driving various driving parts of the mud granulation processing device 1 and the belt conveyor 20, the sprockets of the crawler type traveling bodies 101a and 101b, and 104 is an operating lever for operating the crawler type traveling device 100.
Reference numeral 5 denotes a driving operation panel for driving and operating various driving units of the mud granulation processing apparatus 1 and the belt conveyor 20, 106 denotes a front portion which is installed in a front portion of the vehicle body frame 102 and in which an engine 103, a driving operation panel 105 and the like are installed. It is the base. As the drive unit of the mud granulation processing device 1 among the various drive units driven by the engine 103, in the example shown here, the mud constant amount supply pump 31, the flocculant supply devices 42, 52,
Examples thereof include the rotation driving devices of the solidifying material supply device 62 and the multi-axis stirrer 70, the stirring device 12 of the mud storage device 10, and the driving device of the vibrating screen 13.

The body frame 102 is installed so that the front end and the rear end thereof are slightly overhanging from the crawler type traveling bodies 101a and 101b. Then, the body frame 102
The front base 10 with a raised floor is located near the front end of the
6 is fixed, and the engine 10 is mounted on the front base 106.
3, the operation lever 104, the operation control panel 105, and the driver's seat are installed, and this driver's seat is installed near the operation lever 104 and the operation operation panel 105. Also, the front base 106
A support frame 102a whose floor surface is lower than that of the front base 106 is installed on the vehicle body frame 102 immediately after the step up to the rear end of the vehicle body frame 102. The support frame 102a is provided with a self-propelled mud granulation treatment device, such as a mud storage hopper 11 and a first flocculant storage hopper 41, in order to shorten the captain and allow it to pass in a narrow space. The components of the grain processing apparatus 1 are arranged in a rational manner as described below.

That is, on the support frame 102a, as shown in FIG. 1, one side in the width direction of the crawler type traveling device 100 (the right side in the example of FIG. 1) is provided with a hopper 11 for mud storage and a fixed amount of supplied mud. The pump 31 is arranged, and the first coagulant material storage hopper 41, the second coagulant material storage tank 51, and the solidified material storage hopper 61 are arranged on the other side (left side in the example of FIG. 1) in the width direction. . In addition, in the central part of the support frame 102a between the mud storage hopper 11 and the mud quantitative supply pump 31, the first flocculating material storage hopper 41, the second flocculating material storage tank 51, and the solidifying material storage hopper 61. Arranges the multi-axis stirrer 70 in the longitudinal direction of the crawler type traveling device 100.

As a device for treating mud, so far,
A mud solidification processing device that stirs and mixes mud with a solidifying material by a stirrer and solidifies is known, but in this type of mud processing device, a mud storage hopper, a mud feeder, a solidifying material storage hopper, etc. Since the related equipment was placed side by side in series with the agitator with a rotating drum in the front-rear direction, the length of the machine was significantly lengthened. On the other hand, in this self-propelled mud granulation processing apparatus, the mud storage hopper 11 and the mud quantitative supply pump 31 are provided on one side in the width direction of the crawler type traveling apparatus 100, and the relatively large first mud storage hopper 11 is provided on the other side. The hopper 41 for storing the coagulant and the other related equipment 51, 61, etc. are arranged in the hopper 1 for storing the mud soil.
1, a multi-spindle agitator 70 is arranged between the 1 and mud constant amount supply pump 31 and the first flocculating material storage hopper 41, other related equipment 51, 61, etc. in the longitudinal direction of the crawler type traveling apparatus 100. , The surplus space on both the left and right sides of the multi-spindle agitator generated by such an arrangement is used for the surplus space for the mud storage hopper 11 and the mud supply device 31, the coagulant storage hopper 41, and other related equipment 51, 61. Since it was devised to be installed at, it became possible to significantly shorten the captain compared to the conventional mud treatment equipment.

In addition to the above, in this self-propelled mud granulation processing apparatus, when the large-sized mud storage hopper 11 which is normally installed and protrudes from the side end of the crawler type traveling apparatus 100 is arranged, As shown in FIG. 7, the side end of the crawler type traveling device 100 is arranged so that a part of the mud charging port is located right above the multi-screw agitator so as to cover the multi-spindle agitator 70. Since it is installed in such a manner that it does not stick out from the outside, the mud soil storage hopper, the mud soil feeder, and the flocculate material storage device are installed in the normal crawler type traveling device 100 having a standard vehicle width.
It can be stored in the crawler type traveling device 100 without expanding it. As described above, the self-propelled mud granulation processing apparatus of the present invention shortens the machine length without widening the vehicle width, so that it can be easily carried into a mud generation site that cannot be carried in without passing through a narrow place. Or, it can be relocated.

The first flocculating material storage hopper 41, the second flocculating material storage tank 51, and the solidifying material storage hopper 61.
Does not occupy a space unlike the mud storage hopper 11, so that the crawler type traveling device 100 can be installed even in a normal manner.
It is possible to prevent it from protruding from the side end portion of the. Although the first flocculating material supplying device 42 and the solidifying material supplying device 62 by the screw conveyor and the second flocculating material supplying device 52 by the positive displacement pump are provided so as to be orthogonal to the longitudinal direction of the multi-shaft agitator 70, Even if the vehicle width is not wider than usual, it can be arranged well as shown in the figure.

Since the first flocculating material supplying device 42 and the solidifying material supplying device 62 use a screw conveyor, they must be arranged right next to the mud supplying part 70b and the solidifying material supplying part 70e, respectively. Accordingly, the first coagulant material storage hopper 41 and the solidifying material storage hopper 61 are also included in the mud supplying unit 70b and the solidifying material supplying unit 70e.
Must be placed at a position opposite to. On the other hand, the second coagulant storage tank 51 and the second coagulant supply device 5
No. 2 uses a solution-like second aggregating material and can be flexibly connected to the second aggregating material supply unit 70d by the pipes 54 and 55, so that the arrangement can be freely selected. You can

By the way, the second coagulant is supplied in a state where the mud and the first coagulant are sufficiently mixed and the free water in the mud is sufficiently bound between the soil particles by the first coagulant. Since it is necessary, the coagulant supply unit 70d is charged with the second coagulant in a state where the mud supplied from the mud supply unit 70b and the first coagulant are mixed by the stirring blades for several pitches. Therefore, it is desirable to place it in an appropriate position. In the example shown here, a solution in the form of a second coagulant is used, and piping is provided between the second coagulant storage tank 51, the second coagulant supply device 52, and the second coagulant supply unit 70d. Since the connection can be made with 54 and 55, even if the position of the coagulant supply unit 70d is set to the optimum position, the second coagulant storage tank 5
The 1st and 2nd coagulant supply device 52 can be freely arrange | positioned in the desired position in the empty space between the 1st coagulant storage hopper 41 and the solidification material storage hopper 61.

When this self-propelled mud granulation processing apparatus is transported to the mud generation site, it is loaded on a transport vehicle such as a trailer not shown and transported, and when the transport vehicle arrives at an appropriate point near the mud generation site, the mud is generated. The self-propelled mud granulation processing device equipped with the granulation processing device 1 and the belt conveyor 20 is unloaded from the transportation vehicle. This device does not require heavy equipment for unloading because it can run when it is unloaded from the trailer. This self-propelled mud granulation processing apparatus includes a crawler type traveling apparatus 100 and an engine 10 for driving and manipulating the crawler type traveling apparatus 100.
Since it is equipped with 3, the operating lever 104 and the driver's seat, after being taken off the trailer, it is self-propelled and carried into the mud generation site. In that case, because the machine length is shortened without increasing the vehicle width and it is made compact, it is easy to operate, and at a mud generation site that can be carried in only through narrow spaces such as alleys and alleys. Can be easily loaded. Since this self-propelled mud granulation processing device is formed in such a compact size, the transportation vehicle for transporting it to the destination can use a relatively small one, which is economical. is there.

This self-propelled mud granulation processing device has a rough terrain when granulating mud at a construction site where mud is generated at various places within the same construction site such as foundation construction and dredging construction. Even in a severe terrain such as a wetland or a wetland, by operating the crawler type traveling device 100, it is possible to easily move to the mud generation site in each place in a desired order, which is highly mobile. After moving to the destination by the crawler type traveling device 100, the mud granulation processing device 1 does not require any special assembly work or installation work.
Can be easily installed at a desired place, and the granulation process of mud can be carried out promptly.

Since the operation control panel 105 is installed near the driver's seat when performing the granulation treatment of mud, the operator operates the operation control panel 105 in the driver's seat to operate the mud granulation treatment apparatus 1 and the belt. It is possible to start the conveyor 20 and adjust its operating conditions. The operation control panel 105 is
Since a remote control system can be used, it is not an essential requirement for the present invention to equip the self-propelled mud granulation treatment device. In this self-propelled mud granulation processing apparatus, since the belt conveyor 20 is attached to the vehicle body frame 102 in advance in the above-described manner, the belt conveyor 20 can be installed in an appropriate manner extremely efficiently.

In this self-propelled mud granulation processing device, since the mud storage device 10 having the mud storage hopper 11 is additionally provided, the mud at the mud generation site can be stored with a construction machine such as a hydraulic excavator. The mud can be efficiently granulated by directly charging it into the hopper 11. Since the vibrating screen 13 is attached to the mud storage hopper 11, it is necessary to classify the mud generated in the construction work or the like by the vibrating screen 13 to remove impurities and then store the mud in the mud storage hopper 11. Therefore, it is possible to prevent the foreign matter in the mud from clogging the mud constant amount supply pump 31, the multi-spindle agitator 70, or the like and blocking or damaging them. Therefore, it is possible to treat mud generated in various environments without any trouble. Further, since the engine 103 for driving the drive units of the mud granulation processing device 1 and the crawler type traveling device 100 is arranged near the longitudinal end portion of the crawler type traveling device 100 in which the devices are not complicated, Maintenance and inspection of the power system of the traveling mud granulation processing device can be smoothly performed.

[0077]

As is apparent from the above description, in the self-propelled mud granulation processing apparatus of the present invention, the mud granulation processing apparatus is
In particular, a number of stirrers with a large number of independent stirring blades that are tilted with respect to the rotation axis and fixed are installed side by side so that the mud can be mixed with the aggregating material by stirring blades and agitated and mixed with the aggregating material while shear crushing. Since it is configured by providing a multi-screw agitator, a mud storage hopper, a mud feeder and a flocculant reservoir, the mud granulation process can be continuously performed by the multi-screw agitator. In addition, the number of times mud is brought into contact with the agglomerate can be dramatically increased with a multi-axis stirrer, and the agglomerate can be mixed uniformly with the agglomerate. Granulation processing is possible.

In the self-propelled mud granulation processing apparatus of the present invention, such a mud granulation processing apparatus is installed on the crawler type traveling apparatus, and particularly, the mud storage hopper is provided on one side in the width direction of the crawler type traveling apparatus. And the mud feeder and the coagulant reservoir on the other side, and a multi-shaft agitator between the mud reservoir hopper and the mud feeder and the coagulant reservoir is oriented in the longitudinal direction of the crawler type traveling device. When the mud storage hopper is placed, part of the mud input port is located directly above the multi-spindle agitator, so the machine length can be shortened without increasing the vehicle width. It is possible to operate, and it can be easily carried into a mud generation site that can be carried in only through a narrow space. Since the self-propelled mud granulation processing apparatus of the present invention is formed compactly in this way, a transportation vehicle for transporting it to the destination is:
It is economical because a relatively small one can be used.

In the self-propelled mud granulation processing apparatus of the present invention, the mud granulation processing apparatus is installed on the crawler type traveling apparatus, and the driving unit of the mud granulation processing apparatus and the crawler type traveling apparatus is driven. Since a drive source and driver's seat are provided, when mud is granulated at a construction site where mud is generated at various places within the same construction site such as foundation work and dredging work, uneven terrain and damp ground are used. Even in a severe terrain such as a zone, it is possible to easily move to a desired mud generation site by operating the crawler type traveling device. Then, after moving to the destination with the crawler type traveling device, the mud granulation processing device can be simply installed at a desired place without requiring any special assembly work or installation work. It can be implemented promptly.

As described above, according to the present invention, it is possible to easily carry in or move to a desired mud generation site through a narrow place or a severe terrain, and a large amount of mud is generated at the mud generation site. A mud granulation processing device suitable for granulation processing is obtained. In the self-propelled mud granulation processing device of the present invention,
Especially, the crawler type traveling device is arranged so that one end of the conveyer for transferring the granular mud products is located below the discharge port of the multi-spindle agitator and the other end is located outside the crawler type traveling device with an upward slope. Since it is installed, it does not take time to set up a conveyor so that the granular mud product discharged from the discharge port of the multi-axis stirrer can be transferred to a predetermined place such as a truck bed, and the granular mud product The transfer conveyor can be installed in a proper manner very efficiently. Further, since the drive source for driving the drive unit of the mud granulation processing device and the crawler type traveling device is arranged near the longitudinal end portion of the crawler type traveling device in which the devices are not complicated,
Maintenance and inspection of the power system of the self-propelled mud granulation processing device can be smoothly performed.

In the case of embodying the present invention, in particular, when embodying the invention as claimed in claim 2, mud generated in construction work is classified by a vibrating screen to remove impurities. Moreover, since it can be stored in the mud storage hopper, it is possible to prevent foreign matters in the mud from being clogged or clogged or damaged by the mud feeder or the multi-shaft agitator. Therefore, it is possible to treat mud generated in various environments without any trouble.

[Brief description of drawings]

FIG. 1 is a plan view showing a part of a self-propelled mud granulation processing apparatus according to an embodiment of the present invention in a cutaway manner.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a view in the direction of arrow III-III in FIG.

FIG. 4 is a view in the direction of arrow IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

6 is a partially cutaway view taken along the line VI-VI in FIG.

7 is a sectional view taken along line VII-VII of FIG.

[Explanation of symbols]

1 Mud granulation processing equipment 10 Mud storage device 11 Mud storage hopper 12 Stirrer 13 Vibrating screen 20 Belt conveyor 30 Mud supply means 31 Mud quantitative supply pump 32 Mud suction pipe 33 Mud discharge piping 40 First Flocculant Supplying Means 41 First Coagulant Storage Hopper 42 First Flocculant Supply Device 50 Second Flocculant Supply Means 51 Second Flocculant Storage Tank 52 Second Flocculant Supply Device 53 Second coagulant input port 54 Second coagulant suction pipe 55 Second coagulant discharge pipe 60 Solidifying material supply means 61 Solidifying material storage hopper 62 Solidifying material supply device 70 Multi-axis stirrer 70a casing 70b Mud supply section 70c mud discharge port 70d Second coagulant supply unit 70e Solidifying material supply unit 71 stirrer 71a rotating shaft 71b Stirring blade 71c rotary drive 100 crawler type traveling device 101a, 101b Crawler type traveling body 102 body frame 102a support frame 103 engine 104 control lever 105 Operation panel 106 front base

Continued front page    F-term (reference) 4D004 AA32 BA02 CA13 CA14 CA15                       CA45 CB08 CC11 CC13 CC15                 4G078 AA10 AB20 BA01 BA07 DA01                       DA26 EA10

Claims (2)

[Claims] 1. A plurality of stirrers, each of which has a large number of independent stirring blades tilted with respect to a rotation axis and fixedly attached, so that mud can be stirred and mixed with the aggregating material while being crushed by shearing and crushing the mud with the stirring blade. A multi-axis agitator configured in parallel, a mud storage hopper that stores mud, a mud feeder that feeds the mud in the mud storage hopper to the multi-axis agitator, and agglomerates the mud in the multi-axis agitator And a coagulant reservoir for accumulating coagulant for storing the coagulant, and a crawler mud granulation processing device configured to discharge the granular mud product produced by granulating mud from the discharge port of the multi-axis stirrer. Installed on the traveling device,
The mud storage hopper and the mud feeder are arranged on one side in the width direction of the crawler type traveling device, and the coagulant reservoir is arranged on the other side, and the mud storage hopper and the mud feeder are placed between the mud feeder and the coagulate reservoir. The multi-screw agitator is arranged in the longitudinal direction of the crawler type traveling device, and when disposing the mud storage hopper, it is arranged so that part of the mud input port is located directly above the multi-screw agitator. Along with this, a drive source for driving the drive units of the mud granulation processing device and the crawler type traveling device and the driver's seat are arranged near one end in the longitudinal direction of the crawler type traveling device, and a conveyor for transferring the granular mud product is provided. A self-propelled mud characterized by being attached to a crawler type traveling device such that one end side is located below the discharge port of the multi-screw agitator and the other end side is inclined to the outside of the crawler type traveling device. Granulation processing equipment. 2. The self-propelled mud granulation processing apparatus according to claim 1, wherein a vibrating screen for classifying the mud put into the mud storage hopper to remove impurities in the mud is used for the mud storage. A self-propelled mud granulation processing device characterized by being attached to a hopper.