JP2008183469A - Insolubilization apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently insolubilize harmful materials contained in contaminated soil for reclaiming, in broad areas. <P>SOLUTION: A final end side of a feeding part conveyer 2 constituting a feed means S arranged on a base stand B is positioned on the upper part of the initial end side of a treating part conveyer 4 constituting a treating means D arranged also on the base stand B so that the transfer direction of the contaminated soil by the feeding part conveyer 2 and the treating part conveyer 4 take an L shape from a plain view, and a treating mechanism 6 constituting the treating means D possesses a preliminary treating part 61 which sprays a chemical agent over the contaminated soil on the treating conveyer 4 and a final treating part 62 which jets water over the contaminated soil sprayed with the chemical agent on the treating conveyer 4. A crushing mechanism 5 also constituting the treating means D is positioned between the preliminary treating part 61 and the final treating part 62. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an insolubilization treatment apparatus, and more particularly, to an improvement of an insolubilization treatment apparatus that enables insolubilization treatment, which is a treatment for preventing elution of substances harmful to human bodies contained in contaminated soil to be backfilled into underground water. .

  For example, the earth and sand excavated during the construction of a building is used for backfilling in recent years, but as soil quality improvement devices that improve the soil quality such as supplementing the strength of the backfilled sand and sand, For example, various proposals have been made so far, such as that described in Patent Document 1.

  On the other hand, in a broad sense, it can be said that the soil quality is improved, but when the soil to be backfilled does not have insufficient strength and contains harmful substances such as heavy metals that are harmful to the human body, that is, if it is contaminated soil After refilling, it is necessary to prevent toxic substances from leaching from the contaminated soil into the ground water.

Therefore, by using soil improvement devices such as those disclosed in Patent Document 1 above, the harmful substances contained in the contaminated soil are solidified in the contaminated soil so that the harmful substances do not elute into the ground water. It can be said that the treatment to be performed, that is, the insolubilization treatment is sufficient.
JP-A-11-140904 (paragraphs 0001, 0017, 0020, FIGS. 1, 2, and 3 in the specification)

  However, in the case of insolubilization treatment for solidifying harmful substances contained in the contaminated soil into the contaminated soil, it may be pointed out that diversion of soil improvement devices such as that disclosed in Patent Document 1 is not preferable. is there.

  That is, when diverting soil quality improvement devices such as those disclosed in Patent Document 1 described above to insolubilization processing of contaminated soil, since it is not originally configured for insolubilization processing, efficient insolubilization processing is realized. Therefore, there is a risk that harmful substances that are not insolubilized in the contaminated soil to be backfilled and are eluted in the ground water will remain.

  On the other hand, since this kind of soil improvement device has various equipment, it is generally easy to increase the size, and therefore is not suitable for work in a narrow place, and therefore to improve the usability. The current situation is that miniaturization is required.

  The present invention was devised in view of such a current situation, and the object of the present invention is to be able to widely and efficiently realize the insolubilization treatment of harmful substances contained in the contaminated soil to be backfilled. It is to provide an insolubilizing apparatus that is optimal for expecting an improvement in its versatility.

  In order to achieve the above-described object, the insolubilization treatment apparatus according to the present invention basically includes a base, supply means disposed on the base and receiving contaminated soil, and the base. And a processing means for insolubilizing the contaminated soil from the supply means and discharging it out of the base, in which the supply means inputs the contaminated soil from which the obstacle has been removed. And a supply unit conveyor that conveys the contaminated soil in the hopper toward the processing means, and the processing unit conveys the contaminated soil from the supply unit conveyor to the outside of the base, and this A crushing mechanism that is disposed above the processing unit conveyor and crushes the contaminated soil on the processing unit conveyor, and a medicine that is disposed above the processing unit conveyor while being in series with the crushing mechanism and disposed on the base. Processed with supply of drug from source A processing mechanism for insolubilizing the contaminated soil on the conveyor, the terminal end of the supply unit conveyor is positioned above the start side of the processing unit conveyor, and the conveying direction of the contaminated soil by the supply unit conveyor and the processing unit conveyor is flat. A preliminary processing unit in which the processing mechanism is sprayed onto the contaminated soil on the processing unit conveyor, and a final processing unit that sprays water onto the contaminated soil on the processing unit conveyor. It is assumed that the crushing mechanism is positioned between the preliminary processing unit and the terminal processing unit.

  Therefore, in the present invention, the insolubilization apparatus is configured for the purpose of insolubilization of harmful substances contained in the contaminated soil to be backfilled, so that efficient insolubilization of harmful substances can be enabled. become.

  And in this invention, the terminal end side of the supply part conveyor in a supply means is positioned above the start end side of the process part conveyor in a process means, and the conveyance direction of the contaminated soil by a supply part conveyor and a process part conveyor is a base. Since it is on the top and is L-shaped in plan view, it is insolubilized compared to the case where the conveying direction of the contaminated soil by the supply unit conveyor and the processing unit conveyor is U-shaped or linear. It is possible to prevent the processing apparatus from being unnecessarily long, and to improve the transportability and installation of the insolubilization processing apparatus.

  Moreover, in this invention, the processing mechanism in the processing means, which is in series with the pulverizing mechanism, sprays the medicine onto the contaminated soil on the processing section conveyor, and the medicine on the processing section conveyor has been sprayed. Therefore, the tank for storing the medicine and the tank for storing the water added to the medicine and the other medicine are not linked to each other. In addition to being advantageous in terms of operability, it is possible to separate the chemical spraying and watering etc., and in the case of setting to spray other chemicals instead of water, it can also cope with complex contamination It will be.

  Hereinafter, the present invention will be described based on the illustrated embodiment. However, the insolubilizing apparatus according to the present invention is assumed to be disguised as a truck and transportable.

  Therefore, in this insolubilization apparatus, when a truck having a load weight of 4 tons is selected as the truck, for example, a road width of 4 meters narrower than a road width of 6 meters is selected from the specification. It is possible to travel along the roadway, and the movement range of the insolubilizing apparatus, that is, the conveyance destination can be widened.

  And this insolubilization processing apparatus is arrange | positioned on this base B which consists of the base B which consists of a loading platform connected so that it may mount on the rear frame of a truck, as shown in FIG.1, FIG.2 and FIG.3. The supply means S that accepts the contaminated soil that has been excavated and the soil that has been excavated, and the treatment that is disposed on the base B and is insolubilized and discharged out of the base B from the supply means S And means D.

  Here, the contaminated soil will be explained. In many cases, harmful substances such as heavy metals that are harmful to the human body are usually contained in soil or soil mixed with sand. The term "contaminated soil" refers to soil mixed with soil or sand, and is not limited to so-called "soil".

  When the insolubilization apparatus of the present invention is disguised on a truck and set to a portable type as in the illustrated embodiment, the base B is assumed to be fixedly connected to the rear frame of the truck. However, in the case where the base B is detachably connected to the rear frame of the truck, the base B is separated from the rear frame of the truck, that is, is lowered and moved to an appropriate flat ground or the like. By doing so, the insolubilization apparatus of this invention can be changed from a portable type to an installation type.

  In addition, when the insolubilization apparatus according to the present invention is embodied, when the base B selects a so-called retrofitting setting to the rear frame of the truck, even if the truck is not prepared, the base is selected. It is possible to dispose the supply means S and the processing means D on the table B. Therefore, not only the productivity is improved, but also various operations in the insolubilization processing apparatus of the present invention are used as the driving source of the truck. The selection of the setting not to be based, that is, for example, so-called all electrification, that is, all electrification of the insolubilizing apparatus of the present invention can be made possible.

  In view of the above, the base B is made of a so-called single piece of a frame structure using a steel plate or a steel plate so as to have a predetermined mechanical strength, and is formed so as to be able to be lifted by a crane, for example. Is preferred.

  Next, as shown in FIG. 4, the supply means S includes a hopper 1 for introducing the contaminated soil from which obstacles have been removed, and a supply unit conveyor 2 that conveys the contaminated soil in the hopper 1 toward the processing means D. Furthermore, in the figure, it is assumed that a quantifier 3 that enables quantification of contaminated soil supplied to the processing means D by the supply unit conveyor 2 is provided.

  At this time, the contaminated soil thrown into the hopper 1 is a contaminated soil containing a substance harmful to the human body, for example, heavy metal, and an obstacle other than the harmful substance, for example, large stones, reinforcing bar scraps or concrete. The lump is said to have been removed beforehand.

  Various measures may be selected for the removal of large stones, rebar scraps or concrete blocks as obstacles, but preferably a skeleton bucket of a so-called sieve structure possessed by an excavator when excavating the ground etc. Should be used.

  That is, in the case of this skeleton bucket, when the contaminated soil excavated by the skeleton bucket is deposited in the deposition site, it is possible to remove large stones, rebar scraps or concrete blocks which are obstacles by so-called sieving work.

  Then, in the case of this skeleton bucket, the skeleton bucket having the excavated contaminated soil is moved above the hopper 1 and the skeleton bucket is vibrated under the posture to realize the sieving operation, thereby causing an obstacle. The contaminated soil from which the substances have been removed can be directly put into the hopper 1, and the insolubilization apparatus according to the present invention can be used even when there is no space for depositing the contaminated soil excavated in the so-called work area. Will get.

  Of course, there are various sizes of so-called sieves in the skeleton bucket, and a skeleton bucket having a sieve size that is optimal for the operation of the insolubilizing apparatus of the present invention is selected. Although not shown, a so-called sieve is disposed so as to close the inlet of the top of the hopper 1, so that the obstacle can be further removed by the sieve and the insolubilization treatment of the present invention is performed. Of course, it is also possible to obtain contaminated soil having a size that is optimal for the operation of the apparatus, that is, an optimal particle size.

  And although the sieve arrange | positioned so that the insertion port of the hopper 1 may be blocked | closed is also not illustrated, obstructions, such as a stone and a concrete lump which may be left on it, can fall naturally out of the base B. In this way, it is preferable that the so-called sieve surface is disposed obliquely.

  By the way, the hopper 1 is disposed on the base B, and in FIG. 2, the longitudinal direction thereof is disposed in a direction crossing the front-rear direction of the track along the width direction of the track. As compared with the case where the hopper 1 is arranged along the axial direction which is the front-rear direction of the truck, it is possible to avoid the overall length of the base B and the insolubilizing apparatus.

  In addition, the hopper 1 is arranged in a so-called lateral direction slightly on the right side of the base B, and a medicine supply source described later is arranged on the rear side of the hopper 1 in this way. It becomes possible to make the load of the contaminated soil thrown into 1 act toward the center in the front-rear direction of the truck having the base B.

  In this case, the weight of the processing means D on the left side of the base B is the weight of the hopper 1 and the contaminated soil, the chemical supply source and the chemical charged in the hopper 1, and the load on the truck having the base B. By preventing the distribution from being biased to the so-called side, it is possible to eliminate the need to provide an anti-swing structure or a support structure for the base B during the insolubilization process (FIG. 2). reference).

  However, when the hopper 1 is positioned so that the supply section conveyor 2 below the hopper 1 is arranged in parallel with the processing section conveyor 4 in the processing means D described later, the hopper 1 is positioned closer to the center of the base B. Therefore, it can be said that it is optimal to avoid biasing the load distribution in the track.

  However, in this case, since the hopper 1, that is, the supply unit S is arranged in parallel with the processing unit D, as a result, the insolubilization processing apparatus of the present invention is realized. Disadvantage that it is required to provide a new communication means for connecting the supply means S and the processing means D, the arrangement position of the medicine supply source is restricted, or the medicine capacity is reduced due to the restriction of the arrangement position of T. Then there is a disadvantage that causes disadvantages.

  In view of the above, in the insolubilization apparatus of the present invention, the hopper 1 is preferably arranged on the base B in a direction crossing the front-rear direction of the truck. Assuming that it is arranged so as to be adjacent to the generator G arranged immediately afterward, it is preferable that no dead space appears on the base B (see FIG. 1).

  On the other hand, the supply section conveyor 2 conveys the contaminated soil thrown into the hopper 1 toward the processing means D, and the infinite belt 22 moves in the direction of the arrow shown in the figure by driving the built-in electric motor 21. The contaminated soil thrown into the hopper 1 is moved so as to be lifted from the low-side start end side on the right side in the drawing to the high-side end side on the left side in the drawing.

  In order to quantify the flow rate of the contaminated soil to be discharged toward the processing means D by the supply unit conveyor 2, the feeder unit 2 has a quantifier 3, which enables predetermined quantification. Any configuration may be selected as long as it is obtained.

  By the way, this quantifier 3 stabilizes the thickness of the contaminated soil on the terminal side of the supply section conveyor 2 by a rotor that rotates in a direction indicated by an arrow in the figure by driving an electric motor (not shown). Accordingly, the amount of contaminated soil supplied to the processing means D is made uniform.

  By the way, as for the above-mentioned supply means S, basically, it is sufficient that the contaminated soil put into the hopper 1 is formed so as to be supplied to the processing means D by the supply section conveyor 2. It is important to prevent the leakage of contaminated soil between the lower end of the hopper 1 and the supply section conveyor 2.

  Therefore, in the illustrated embodiment, as shown in FIG. 4, it is assumed that the hopper 1 has a seal member 11 on the inner periphery of the lower end portion, and the seal member 11 extends so-called horizontally long. It is formed in a band shape, and the lower end is brought into contact with the upper surface of the infinite belt 22 while the upper end is connected to the inner periphery of the hopper 1 so that the contaminated soil on the infinite belt 22 crosses the lower end of the hopper 1. It is supposed to prevent leaking outside.

  The supply unit conveyor 2 is mainly intended to efficiently supply the contaminated soil introduced into the hopper 1 to the processing means D. Therefore, the supply unit conveyor 2 is free as long as this efficient conveyance of the contaminated soil can be realized. May be configured.

  At this time, the plurality of rollers 23 in the supply unit conveyor 2 that support the endless belt 22 from below have a V-shaped cross section or a concave shape when viewed from the width direction, which is a direction crossing the moving direction of the endless belt 22. It may be configured to make it easy to collect the contaminated soil on the infinite belt 22.

  Whereas the supply means S is formed as described above, the processing means D receives the contaminated soil conveyed from the supply section conveyor 2 as shown in FIG. 2)), a crushing mechanism 5 disposed above the processing unit conveyor 4 for crushing contaminated soil on the processing unit conveyor 4, and in series with the crushing mechanism 5. However, it is also provided with a processing mechanism 6 that is disposed above the processing unit conveyor 4 and receives the supply of chemicals and water or other chemicals and insolubilizes the contaminated soil on the processing unit conveyor 4.

  5, the processing mechanism 6 in the processing unit D includes a preliminary processing unit 61 that sprays a drug from a drug tank (not shown) onto the contaminated soil on the processing unit conveyor 4, and the processing unit conveyor 4. An end treatment unit 62 for injecting water from the water tank T onto the contaminated soil on which the medicine has been sprayed is provided. A crushing mechanism 5 is provided between the preliminary treatment unit 61 and the end treatment unit 62. Is supposed to be positioned.

  In this way, in the processing means D, the processing mechanism 6 is divided into the preliminary processing unit 61 and the terminal processing unit 62, so that it is not necessary to connect the drug tank and the water tank T. In addition to being advantageous in terms of operability, it is possible to avoid the inconvenience that the medicine is unnecessarily mixed with water.

  In this way, in the processing means D, the processing mechanism 6 is divided into the preliminary processing unit 61 and the terminal processing unit 62, so that a predetermined amount of the chemical is sprayed on the contaminated soil by the preliminary processing unit 61 in the processing mechanism 6. After that, the pulverized mechanism 5 is pulverized so that the contaminated soil has an appropriate particle size, and a predetermined amount of water is poured into the contaminated soil pulverized with this chemical mixture, thereby insolubilizing the harmful substances contained in the contaminated soil. Will be realized.

  In the illustrated embodiment, the terminal processing unit 62 generates an insolubilizing effect by spraying water on the contaminated soil in which a predetermined amount of the drug is sprayed by the preliminary processing unit 61, that is, the drug is effectively reacted. However, when a chemical that does not require water is sprayed on the contaminated soil by the pretreatment unit 61, it is a matter of course that water is not sprayed. In this case, another chemical is sprayed. In this case, it is possible to cope with complex contamination.

  Further, in this processing means D, the crushing mechanism 5 and the processing mechanism 6 are basically located above the processing unit conveyor 4 and are not perfect, but are covered by the cover body 7 and are contaminated by the crushing mechanism 5. It is assumed that the period between the earth crushing and the insolubilization process is terminated by the processing mechanism 6 is cut off from the atmosphere.

  As a result, assuming a situation where the insolubilization treatment apparatus of the present invention is used, it is extremely significant in particular to avoid scattering of harmful substances contained in the contaminated soil when the crushing mechanism 5 is operated. Contributes to the prevention of the scattering of harmful substances.

  At this time, the cover body 7 is formed in a tunnel shape having an inverted U-shaped cross-section that opens the lower end, and is supported by being placed on both sides of the processing unit conveyor 4 that is below. Alternatively, when the cover body 7 or the upper surface portion of the cover body 7 is removed from the disposed position, assuming that the cover body 7 is held by an appropriate support structure disposed on the base B, the crushing mechanism 5 and the processing mechanism 6 may be exposed, and for example, inspection of the crushing mechanism 5 and the processing mechanism 6 may be enabled.

  As will be described below, first, in the figure, the flow direction of the contaminated soil in the processing means D is orthogonal to the flow direction of the contaminated soil in the supply means S on the base B. Therefore, according to the present invention. In the insolubilization processing apparatus, the conveying direction of the contaminated soil by the supply unit conveyor 2 and the processing unit conveyor 4 is L-shaped in plan view (see FIG. 2).

  That is, the terminal end side which is the lower end side in FIG. 2 of the supply unit conveyor 2 is positioned above the start end side which is the left end side in FIG. 2 of the processing unit conveyor 4, and the axis line of the supply unit S and the axis line of the processing unit D Are assumed to have an L shape in plan view.

  Therefore, in this kind of insolubilization processing apparatus, on the base B, the conveying direction of the contaminated soil by the supply unit conveyor 2 and the processing unit conveyor 4 may be U-shaped or linear. Compared to a certain case, in the insolubilization treatment apparatus of the present invention, it is possible to prevent the mischievous lengthening of the base B and the insolubilization treatment apparatus, and it is possible to improve the transportability and installability in the insolubilization treatment apparatus. become.

  In addition, as described above, the supply means S and the processing means D are arranged so as to have an L shape in a plan view, and the hopper 1 is placed in a so-called lateral direction at the central portion of the equipment B. It becomes possible to make the load of the contaminated soil thrown in the hopper 1 in the supply means S to act near the center part of the base B, and it becomes a rocking | fluctuation prevention structure and support structure of the base B. There is no need to provide an outrigger or the like.

  Next, in the insolubilization processing apparatus according to the present invention, the contaminated soil supplied from the supply means S to the processing means D is continuous as described above, because the supply means S includes the quantifier 3. Will be supplied evenly.

  At this time, as described above, in the insolubilization treatment apparatus according to the present invention, the flow direction of the contaminated soil in the supply means S is orthogonal to the flow direction of the contaminated soil in the treatment means D. When the end of the conveyor 2 is positioned at the center on the start end side of the processing unit conveyor 4, contaminated soil is deposited on the central portion of the processing unit conveyor 4 as shown by a broken line hatching diagram in FIG. 2. It becomes like this.

  Therefore, it is possible to effectively prevent the contaminated soil supplied from the supply unit conveyor 2 from leaking to the outside at the start end side portion of the processing unit conveyor 4, and when the crushing mechanism 5 is operated after dredging. The grinding efficiency can be improved.

  By the way, the processing section conveyor 4 basically has a well-known configuration in which the endless belt 42 is supported by a plurality of rollers 41, and the endless belt 42 in the supply means S described above is illustrated. It is assumed that it is driven by a built-in electric motor 43 similarly to the supply unit conveyor 2.

  In addition, the top surfaces of both end portions and the start end portion of the endless belt 42 are in contact with the tip end portions of the seal members 71 that prevent the contaminated soil from leaking to the outside via the lower end of the cover body 7, Regarding the holding of the seal member 71, the base end portion is connected to the cover body 7 in the drawing, but instead of this, the seal member 71 constitutes the processing unit conveyor 4 although not shown. Of course, it may be held by the frame 45 (see FIG. 6).

  As for the roller 41, as described above, on the start end side of the processing unit conveyor 4, a state in which contaminated soil is accumulated in the central portion of the infinite belt 42 is expressed. What is necessary is just a structure which enables 42 to transfer the contaminated soil to the processing mechanism 5 with the state maintained.

  Incidentally, the endless belt 42 in the processing unit conveyor 4 is in a so-called flat belt state as shown in the figure. However, as long as there is no problem in the operation of the crushing mechanism 5 described later, for example, the infinite belt 42 is used. A measure may be selected that makes the contaminated soil on the endless belt 42 easy to be gathered by making the cross-section V-shaped or concave when viewed from the width direction, which is a direction crossing the moving direction of the.

  On the other hand, the crushing mechanism 5 includes a plurality of crushing rotors 51, 52, 53 driven by the respective electric motors 50. The crushing rotors 51, 52, 53 are located above the processing unit conveyor 4. 5 is arranged in the extending direction of the processing unit conveyor 4 which is in the right direction in FIG.

  At this time, each crushing rotor 51, 52, 53 is formed by connecting a large number of blades 51 b, 52 b, 53 b to rotating shafts 51 a, 52 a, 53 a arranged in the width direction of the processing unit conveyor 4. The blades 51b, 52b, 53b rotate in the axial direction of the processing unit conveyor 4 in the left-right direction in FIG. 6 so that the contaminated soil on the processing unit conveyor 4 is crushed to a predetermined particle size.

  At this time, the lower ends of the blades 51b, 52b, 53b in the grinding rotors 51, 52, 53 are opposed to the upper surface of the infinite belt 42 in the lower processing unit conveyor 4 with an appropriate interval. The passage of contaminated soil that is less than this interval is allowed.

  At this time, the disposing positions of the rotating shafts 51a, 52a, 53a in the respective crushing rotors 51, 52, 53 are so-called eccentric with respect to the disposing positions of the rollers 41 that support the infinite belt 42 from below. As a result, a situation in which contaminated soil is sandwiched between the lower ends of the blades 51b, 52b, and 53b and the upper surface of the infinite belt 42 is not expressed.

  In this crushing mechanism 5, the rotation direction of each crushing rotor 51, 52, 53 is a so-called scraping direction with respect to the so-called traveling direction of the processing unit conveyor 4 as indicated by an arrow in the figure. However, instead of this, the rotation directions of the respective crushing rotors 51, 52, 53 may all be reversed, and any selected rotation direction may be reversed. Of course it is also good.

  Further, the rotational speeds of the respective grinding rotors 51, 52, 53 are different from each other, and it is assumed that the occurrence of problems in so-called stirring is avoided when the rotational speeds are the same.

  In addition, as shown in the figure, the blades 51b, 52b, 53b of the crushing rotors 51, 52, 53 are made of an angle material that is a mold having an L-shaped cross section, but as long as the desired crushing can be realized. Of course, any configuration of shapes may be selected.

  As for the pulverization mechanism 5 described above, the present invention aims to pulverize the contaminated soil. From the viewpoint of its function, it can be said that the contaminated soil is being stirred while being crushed. Of course, it may be referred to as “stirring mechanism” or simply “stirring mechanism”.

  The processing unit conveyor 4 formed as described above conveys the contaminated soil pulverized by the pulverizing mechanism 5 toward the processing mechanism 6. In this case, however, the contamination on the processing unit conveyor 4 is illustrated. It is assumed that the thickness is adjusted by the leveling means 72 before the soil enters the so-called area of the processing mechanism 6.

  As for the leveling means 72, since a very strong structure may cause so-called clogging, it is preferable to select a structure having the same thickness without difficulty. .

  Further, as for the leveling means 72, as a result of the operation of the crushing mechanism 5 upstream thereof, the contaminated soil on the processing unit conveyor 4 has a uniform thickness, that is, the contaminated soil has a uniform thickness. However, the arrangement may be omitted.

  Whereas the processing unit conveyor 4 and the crushing mechanism 5 are configured as described above, the processing mechanism 6 is located above the processing unit conveyor 4 as shown in FIG. 5 having a preliminary processing unit 61 disposed on the front side on the left side in FIG. 5 and a terminal processing unit 62 disposed on the rear side on the right side in FIG. It is said that it is formed in a structure.

  As described above, since the processing mechanism 6 is formed in such a divided structure, first, the chemical spraying and the water spraying and other chemical spraying can be performed as independent operations. For example, as compared with a case where a drug and water are mixed and slurried in advance, it is possible to avoid a problem that the drug is unnecessarily mixed with water.

  By the way, the processing mechanism 6 may be referred to as a “medical spraying mechanism” or a “medical spraying processing mechanism” because it is supposed that the contaminated soil is insolubilized by spraying a drug as an insolubilizing agent. Then, it will be simply referred to as “processing mechanism”.

  At this time, in the illustrated embodiment, since the contaminated soil contains heavy metals as harmful substances, a mineral insolubilizing agent or the like, which is a treatment agent that enables insolubilization of the heavy metals, is selected as the agent.

  And since this mineral insolubilizer etc. are supplied from what is called a manufacturer in the state accommodated in the tank made from polyethylene in many cases, in this invention, this medicine tank made from polyethylene is provided on the base B However, instead of this, it may be supplied to a so-called transshipment chemical tank provided on the base B.

  Some mineral insolubilizers, etc., react with some chemicals by adding water to insolubilize heavy metals. In these products, water is added to the chemicals to form a slurry before contamination. Although there is a measure for spraying on the soil, in the illustrated embodiment, a measure for distributing water after thoroughly mixing the contaminated soil and the drug is selected.

  Therefore, in the illustrated embodiment, a predetermined amount of medicine is sprayed on the contaminated soil by the preliminary processing unit 61. First, the preliminary processing unit 61 has a sprayer 61a held by the cover body 7 described above. The spreader 61a is on the cover body 7 and the end side of the supply unit conveyor 2 is positioned above the start side of the processing unit conveyor 4 (area A indicated by the broken line in FIG. 2). ) Above.

  At this time, the spreader 61a is composed of, for example, a rotary feeder, and the medicine from the rotary feeder is supposed to be continuously supplied to a continuous contaminated soil.

  When the preliminary processing unit 61 is formed as described above, the terminal processing unit 62 has the injector 62a held by the cover body 7 as in the preliminary processing unit 61. The injector 62a is disposed in the cover body 7 through the above-described crushing mechanism 5, that is, above the contaminated soil that has been crushed to an appropriate particle size by the crushing mechanism 5 and carried by the processing unit conveyor 4. It is going to be done.

  In the final processing unit 62, water from the water tank T is sprayed onto the contaminated soil on the processing unit conveyor 4 to cause the chemicals to react, thereby realizing insolubilization of harmful substances.

  At this time, it is assumed that the water is ejected in a so-called fan shape along the width direction of the processing unit conveyor 4 without increasing the thickness so that the water from the injector 62a does not diffuse unnecessarily. In FIG. 5, the so-called transport unit of the processing unit conveyor 4 is shielded from the outside by the cover body 7 described above.

  As a result, the contaminated soil is thinly spread and finely pulverized on the conveying section of the processing unit conveyor 4, so that water can be concentrated and sprayed on the contaminated soil in this state. Therefore, the contaminated soil mixed with the chemical can be effectively insolubilized by spraying the required amount of water.

  Incidentally, the above-mentioned spreader 61a and the injector 62a are held so as to be separable from the cover body 7 described above, and when this is separated from the cover body 7, the inspection and maintenance may be made possible. Needless to say, it is possible to swing in the width direction of the processing unit conveyor 4 in a state of being held by the cover body 7, and it is possible to increase the spraying efficiency of the chemical and the water jetting efficiency on the contaminated soil. You may do it.

  At this time, as described above and as shown in FIG. 6, the seal member 71 is held at the lower end portion of the cover body 7, and the lower end portions of the seal member 71 are located on both side portions of the processing unit conveyor 4. It is preferable that leakage of the sprayed medicine or the sprayed water to the outside is prevented by contacting.

  By the way, in the above-described terminal processing unit 62, in order to ensure that the water sprayed from the injector 62a is sprayed to the contaminated soil containing the chemical, that is, the chemical mixed on the processing unit conveyor 4 The roller 44 that supports the endless belt 42 from below in the area of the end treatment unit 62 has a cross-section V when viewed from the width direction, which is a direction crossing the moving direction of the endless belt 42 so that the contaminated soil does not diffuse to both sides. It is said that it is formed so that it can be realized to be a letter shape or a concave shape.

  That is, the roller 44 is formed in the area shown in FIG. 6 within the area of the end processing unit 62. As shown in FIG. The height is formed so as to be higher than the so-called central portion of the infinite belt 42.

  For the roller 44 located at the end of the area of the end processing unit 62, the endless belt 42 may be folded back, so that the load on the endless belt 42 is not unnecessarily applied (see FIG. As shown in B), the endless belt 42 is formed in the form of a cylindrical roller so as to be a flat belt.

  Incidentally, the roller 44 is not limited to a plurality of rollers, but the number of the rollers 44 and the interval of the rollers 44, that is, the interval in the moving direction of the infinite belt 42 are arbitrary. Good.

  Therefore, in the processing mechanism 6 described above, when the contaminated soil used for backfilling contains substances that are harmful to the human body, for example, heavy metals, it is possible to enable insolubilization of heavy metals using chemicals. Thus, it becomes possible to discharge the contaminated soil after the insolubilization of the heavy metal, that is, out of the base B.

  In addition, although arbitrary measures can be employ | adopted about discharge | emission outside the base B which is the exterior of the contaminated soil which the insolubilization process was complete | finished, for example, as shown in a virtual diagram in FIG. If the truck to be disguised is set to convey the belt conveyor 8 at the same time, as shown in FIG. 3, the belt conveyor 8 is used to backfill or deposit the treated contaminated soil at a predetermined position. Etc. can be easily made possible.

  In addition, about using the said belt conveyor 8, this is installed along the width direction of a track as shown in FIG. 3, and although not shown in figure, it is along the front-back direction of a track behind the base B. Of course, it may be installed.

  At this time, the driving of the belt conveyor 8 is also driven by using a power generator G described later, and it is a matter of course that the driving is controlled by the control panel C.

  As described above, in the insolubilizing apparatus according to the present invention, when it is disguised as a small vehicle such as a 4-ton truck, and it can be moved, it is of course in a wide place, but in a narrow house It can be moved to the ground, and its range of action can be widened.

  And since the insolubilization processing apparatus by this invention is comprised for the purpose of insolubilization processing, the insolubilization processing of the hazardous | toxic substance contained in the contaminated soil backfilled can be implement | achieved efficiently.

  The above is the main feature of the insolubilization treatment apparatus according to the present invention. In addition, in the insolubilization treatment apparatus according to the present invention, the following consideration is made.

  First, in the insolubilization apparatus according to the present invention, in addition to the supply section conveyor 2 in the supply means S, the processing section conveyor 4 and the crushing mechanism 5 in the processing means D, which are the main driving devices, the quantifier 3 in the supply means S Etc. are driven by the electric motors 21, 43, 50. Therefore, the generator G is arranged on the base B. By using the generator G as a power source, the present invention can be used. The insolubilization treatment apparatus can be easily all-electrically driven, that is, all electrified easily.

  Incidentally, in the insolubilizing apparatus of the present invention, the generator G is arranged on the base B immediately after the driver's seat of the truck because the base B is connected to the rear frame of the truck. In addition, it is assumed that, like the hopper 1 in the supply means S described above, a dead space does not appear unnecessarily on the base B so that its longitudinal direction is along the width direction of the base B.

  As a result, the insolubilization apparatus according to the present invention can be used in a so-called ecological idea, for example, by eliminating the need for hydraulic pressure as compared with a case where main driving equipment is operated with a truck running engine as an output source. It becomes possible to follow.

  In the insolubilization apparatus according to the present invention, the driving of the supply unit conveyor 2, the processing unit conveyor 4 and the crushing mechanism 5 which are main driving devices is controlled by the control panel C provided on the base B. It is going to be done.

  At this time, the control panel C is located at a position away from the hopper 1 in the supply means S, that is, as shown in the figure, the control panel C is separated from the hopper 1 so that a medicine supply source is disposed between the control panel C and the hopper 1. Consideration is given so that the construction machine when the contaminated soil is put into the hopper 1 cannot interfere with the control panel C.

  Furthermore, in the insolubilization treatment apparatus according to the present invention, a plurality of emergency stop buttons S1, S2, S3 are arranged at arbitrary positions on the base B as shown by x in FIG. At the same time, when any one of the emergency stop buttons S1, S2, S3 is turned on, the supply means S, that is, the supply section conveyor 2 and the processing means D in the supply means S, that is, the processing section conveyor 4 in the processing means D The driving can be stopped so that a so-called emergency situation can be dealt with.

  Incidentally, when the emergency stop buttons S1, S2, S3 are turned on, it goes without saying that a warning light may be turned on or an alarm sound may be emitted.

1 is a schematic elevation view of a side surface of a truck disguised with an insolubilization apparatus according to the present invention. FIG. 2 is a schematic plan view of the track of FIG. 1. FIG. 2 is a schematic elevation view of a rear side of the track of FIG. 1. It is a longitudinal cross-sectional view of the supply means seen from the back side of a track. It is the longitudinal cross-sectional view of the processing means seen from the side of the track. It is a figure which shows the roller in the process part conveyor in the area of the weekend process part in a process mechanism with an infinite belt.

Explanation of symbols

B base C control panel D processing means G generator S supply means S1, S2, S3 emergency stop button T water tank 1 hopper 2 supply section conveyor 3 meter 4 processing section conveyor 5 crushing mechanism 6 processing mechanism 61 preliminary processing section 62 Final processing section

Claims (8)

A base and a supply means disposed on the base to receive the contaminated soil; and a treatment disposed on the base and insolubilizing the contaminated soil from the supply means and discharging the soil out of the base. In the insolubilization processing apparatus comprising the means, the supply means has a hopper into which the contaminated soil from which the obstacle has been removed is charged, and a supply conveyor that conveys the contaminated soil in the hopper toward the treatment means, A processing unit conveyor that conveys the contaminated soil from the supply unit conveyor toward the outside of the base; a grinding mechanism that is disposed above the processing unit conveyor and crushes the contaminated soil on the processing unit conveyor; A processing mechanism for insolubilizing the contaminated soil on the processing unit conveyor by receiving the supply of the chemical from the chemical supply source disposed on the base and being arranged above the processing unit conveyor while being in series with the grinding mechanism; And the end of the conveyor Preliminary processing in which the axis of the supply means and the axis of the processing means are L-shaped in a plan view, positioned above the starting end side of the conveyor, and the processing mechanism sprays the chemical on the contaminated soil on the processing conveyor And a terminal processing unit for injecting water onto the contaminated soil on which the chemicals are spread on the processing unit conveyor, and a grinding mechanism is positioned between the preliminary processing unit and the terminal processing unit. An insolubilization apparatus characterized by that. The insolubilization processing apparatus according to claim 1, wherein the base is a cargo bed connected to a rear frame of the truck. The insolubilization processing apparatus of Claim 1 or Claim 2 which has a fixed_quantity | quantitator which enables quantification of the contaminated soil which a supply means supplies to a process means by a supply part conveyor. The insolubilization processing apparatus according to claim 1, wherein the pulverizing mechanism and the processing mechanism in the processing means are covered with a cover body. In the processing means, the processing mechanism includes a preliminary processing unit that sprays the chemical on the contaminated soil on the processing unit conveyor, and a terminal processing unit that sprays water and other chemicals on the contaminated soil on the processing unit conveyor. The insolubilization apparatus according to claim 1, 2, 3, or 4, wherein a pulverizing mechanism is positioned between the preliminary processing section and the terminal processing section. 6. The insolubilization processing apparatus according to claim 1, wherein the supply means and the processing means are of an electric type using a generator provided on the base as a power source. . The insolubilization process according to claim 1, 2, 3, 4, 5 or 6, wherein driving of the supply means and the processing means is controlled by a control panel provided on the base. apparatus. A plurality of emergency stop buttons are arranged on the base, and the driving of the supply means and the processing means can be stopped when the emergency stop button is turned on. The insolubilization processing apparatus according to claim 4, claim 5, claim 6 or claim 7.

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