JP2008018385A - Insolubilization treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To contribute to the prevention of the so-called environmental pollution at the time of insolubilization treatment of a harmful substance contained in back-filling polluted soil. <P>SOLUTION: The supply part conveyor in the supply means S arranged on a base stand B to receive polluted soil, the treatment part conveyor 4 in the treatment means D arranged on the base stand B in the same way to subject the polluted soil from the supply means S to insolubilization treatment and a grinding mechanism 5 are set to an electromotive type using the dynamo G, which is arranged on the base stand B, as a power supply. <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 may be performed.
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, when the above soil quality improvement devices are disguised as trucks and are made portable, in many cases, it is assumed that various equipments are driven by using a truck traveling engine as a drive source. There is a risk that mischievous emission of exhaust gas and generation of noise will be unavoidable and will promote so-called pollution.

  The present invention was created in view of such a current situation, and an object of the present invention is to enable wide and efficient realization of insolubilization treatment of harmful substances contained in contaminated soil to be backfilled. Of course, it is an object to provide an insolubilization apparatus that is optimal for expecting improvement in its versatility without unnecessarily promoting the occurrence of so-called pollution.

  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 And a processing mechanism for insolubilization the polluted soil on the conveyor, the supply unit means and the processing means and is formed by an electric type for the power supply of the generator disposed on the base.

  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.

  In the present invention, since the supply means and the processing means are of an electric type that uses a generator disposed on the base as a power source, the supply means and the processing means use the truck traveling engine as a drive source. Compared to the case of being driven, the use of hydraulic pressure is not necessary, and there is no fear of mischievous exhaust gas emission and noise generation, contributing to the suppression of pollution and to comply with the so-called eco-ideology. It becomes possible.

  In addition, in the present invention, the main driving devices in the insolubilization apparatus are of an electric type that uses a generator disposed on the base as a power source, thereby ensuring the driving of these devices. Therefore, it is possible to eliminate the need for linking with a truck running engine. Therefore, in the realization of this insolubilization processing apparatus, it is possible to commercialize the truck even if it is not prepared. When it is unloaded from the truck, it will be used as it is.

  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. Supply means S that accepts the excavated contaminated soil, and processing means D that is also disposed on the base B and insolubilizes the contaminated soil supplied from the supply means S and discharges it out of the base B And a generator G serving as a power source for the main equipment constituting the supply means S and the processing means D, that is, the main equipment of the electric type.

  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.

  From this, the base B is made of a so-called single piece of a frame structure using a steel mold 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.

  On the other hand, in the insolubilization processing apparatus according to the present invention, the supply means and the processing means are of an electric type that uses a generator disposed on the base as a power source. Compared to the case of driving with a drive source, it is unnecessary to use hydraulic pressure, and there is no fear of mischievous exhaust gas emission or noise generation, which can contribute to pollution control.

  In addition, in the present invention, the main driving devices in the insolubilization apparatus are of an electric type that uses a generator disposed on the base as a power source, thereby ensuring the driving of these devices. Therefore, it is possible to eliminate the need for linking with a truck running engine. Therefore, in the realization of this insolubilization processing apparatus, it is possible to commercialize the truck even if it is not prepared. When it is unloaded from the truck, it will be used as it is.

  As a result, in the realization of the insolubilization apparatus according to the present invention, so-called all electrification can be made possible, it is easy to improve productivity, and further, the insolubilization treatment according to the present invention is achieved. For example, the apparatus can be adapted to a so-called ecological idea as compared with a case where main equipment is driven by using a truck traveling engine as an output source.

  By the way, it is about the generator G arrange | positioned on said base B, However, In the insolubilization processing apparatus of this invention, since base B is connected with the rear frame of a truck, illustration is carried out. Thus, it is preferable to be arranged immediately after the driver's seat of the truck on the base B, and when the plan view is rectangular, the width direction in which the longitudinal direction is the direction crossing the front-rear direction of the truck (See FIG. 2) so that the dead space does not appear unnecessarily on the base B.

  The generator G has, for example, a cell device and is operated with a fuel such as light oil to generate power, as is the case with almost all types of generators. It may be formed in a well-known structure, such as having a device.

  Incidentally, the operation of operating or stopping the generator G is not related to the driver's seat of the truck, that is, it is preferable to cut off the various operations of the truck. It is assumed that the operation is performed by an operator or a direct operation on the generator G.

  As for the control panel C, the main devices in the insolubilization apparatus according to the present invention, that is, the driving and operation of the supply unit conveyor 2 in the supply unit S and the processing unit conveyor 4 and the crushing mechanism 5 in the processing unit D are as follows. Basically, it is controlled by a control panel C disposed on the base B.

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

  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.

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

  Further, in this case, the weight of the processing means D on the left side of the base B is set in the truck having this base B with the weight of the soil, the chemical supply source T and the chemical charged in the hopper 1 and the hopper 1. By preventing the load 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 (see FIG. 2).

  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 placement position of the medicine supply source T is restricted, or the placement of the medicine supply source T restricts the medicine capacity. There is a problem that causes disadvantages such as that the number of

  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 unit conveyor 2 conveys the contaminated soil thrown into the hopper 1 toward the processing means D, and is disposed on the base B by driving of the built-in electric motor 21. The infinite belt 22 is moved in the direction of the arrow shown in the figure by driving the electric motor 21 that uses the generator G as a power source. The contaminated soil put into the hopper 1 is moved to the lower position side on the right side in the figure. It is moved from the start end side so as to be lifted to the high end end side on the left side in the drawing.

  And in this supply means S, in order to quantify the flow volume of the contaminated soil discharged toward the processing means D by the supply unit conveyor 2, that is, the amount of contaminated soil continuously supplied to the processing means D. In order to equalize, the quantifier 3 is provided. Although not shown, the quantifier 3 is driven by an electric motor such as an external motor that uses the generator G as a power source. It is assumed that the thickness of the contaminated soil on the terminal end side of the supply unit conveyor 2 is made constant by the rotor rotating in the direction indicated by the arrow.

  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. On the processing unit conveyor 4 while receiving the supply of the medicine from the medicine supply source T (see FIG. 1, FIG. 2 and FIG. 3) which is also disposed above the processing unit conveyor 4 and disposed on the base B. And a processing mechanism 6 for insolubilizing the contaminated soil.

  5, in the processing means D, the crushing mechanism 5 is positioned closer to the start side on the left side in the drawing of the processing unit conveyor 4 than the processing mechanism 6, that is, upstream of the processing mechanism 6. As a result, the particle size in the contaminated soil supplied from the supply means S is adjusted by the crushing mechanism 5 and then the insolubilization process by supplying the chemical agent is realized by the processing mechanism 6.

  Thus, in the processing means D, the crushing mechanism 5 is positioned upstream of the processing mechanism 6, that is, the crushing mechanism 5 and the processing mechanism 6 are positioned in a directly connected state. In particular, the insolubilization process according to the present invention is considered when considering that the supply unit conveyor 2 and the processing unit conveyor 4 described later are arranged so as to have an L shape in plan view. This greatly contributes to the overall compactness of the apparatus.

  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 position where the cover body 7 is held on an appropriate support structure disposed on the base B, a crushing mechanism 5 described later and The processing mechanism 6 can be exposed, and for example, the crushing mechanism 5 and the processing mechanism 6 can be inspected.

  In addition, in the cover body 7 described above, an opening 7a is provided at a portion covering a so-called merged portion of the supply unit conveyor 2 in the supply unit S and the processing unit conveyor 4 in the processing unit D, as shown in FIG. It is assumed that it is possible to check the situation of the above-mentioned merging portion from above so-called through the opening 7a.

  Incidentally, since the opening 7a is on the upstream side of the crushing mechanism 5, it can be said that there is a low possibility that harmful substances are scattered in the atmosphere through the opening 7a. Although not shown, for example, a blower that blows air toward the processing mechanism 6 is installed upstream of the crushing mechanism 5, or is installed between the crushing mechanism 5 and the processing mechanism 6, and harmful substances However, it may be considered not to flow backward to the opening 7a side.

  Further, although not shown, it is of course possible to provide a partition between a pulverizing rotor 51 (described later) at the left end in FIG. 5 and the supply section conveyor 2 to prevent the scattering and protect the supply section conveyor 2. It is.

  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 unit S and the processing unit D are arranged so as to have an L shape in plan view, and the hopper 1 is so-called at the center of the base B. By arranging in the horizontal direction, it becomes possible to cause the load of the contaminated soil put into the hopper 1 in the supply means S to act closer to the center of the base B, and to prevent the base B from being shaken or supported. 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.

  Further, the upper surface of both end portions and the start end portion of the endless belt 42 is in contact with the lower end portion of the seal member 71 that prevents the contaminated soil from leaking outside through the lower end of the cover body 7, Regarding the holding of the seal member 71, the upper end portion is connected to the cover body 7 in the drawing, but instead of this, the frame that the sealing member 71 constitutes the processing unit conveyor 4 is not shown. Of course, it may be held by the body 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 endless 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. In FIG. 5, it is assumed that the processing unit conveyor 4 is aligned in the extending direction of the conveying direction.

  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, and 53b rotate in the axial direction of the processing unit conveyor 4 in the longitudinal direction in FIG. 5 so that the contaminated soil on the processing unit conveyor 4 is pulverized 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.

  Furthermore, the rotational speeds of the respective grinding rotors 51, 52, and 53 are different from each other, and it is assumed that problems caused in so-called agitation are 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 in series and is connected in series to the so-called downstream side of the crushing mechanism 5. It is assumed that the contaminated soil on the processing unit conveyor 4 is insolubilized by receiving the supply of the medicine from the medicine supply source T (see FIG. 2) arranged on the base B.

  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.

  In many cases, the mineral insolubilizing agent is supplied from a so-called manufacturer in a state where the mineral insolubilizing agent is accommodated in a polyethylene tank or the like. Although it is supposed to be held on a holding base having a frame structure erected at a place, it may be supplied to a so-called dedicated tank for transshipment provided on the base B instead.

  And in the processing mechanism 6, it is supposed that the chemical | medical agent which added water and was made into the slurry form will be sprayed to the contaminated soil which exists on the process part conveyor 4 with the injector 61, At this time, the chemical | medical agent from the injector 61 will be injected. In order not to diffuse unnecessarily, the shape of the sprayed medicine is not limited to a conical shape but is infinitely fan-shaped. Moreover, in the area of the processing mechanism 6, the transport unit of the processing unit conveyor 4 covers the cover described above. The body 7 is shielded from the outside.

  As a result, since the contaminated soil is thinly spread and finely crushed on the conveying section of the processing unit conveyor 4, it is made into a slurry that easily penetrates into the contaminated soil in this state. The drug can be concentrated and sprayed, and the contaminated soil can be effectively insolubilized with a small amount of drug.

  Incidentally, the injector 61 is held so as to be separable from the cover body 7 described above, and when it is separated from the cover body 7, it is of course possible to allow inspection and maintenance. Furthermore, 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 so that the spraying efficiency of the drug against the contaminated soil can be increased.

  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 is prevented by contact with.

  As for the operation of the injector 61, the pressurization phenomenon is used in many cases, and the above-described generator G is used as a power source for the devices used for realizing the pressurization phenomenon. It will be controlled by control panel C.

  Further, in the area of the processing mechanism 6, the contaminated soil on the processing unit conveyor 4 does not diffuse on both sides of the processing unit conveyor 4, and the chemical sprayed from the injector 61 is surely made into the contaminated soil. The roller 44 that supports the endless belt 42 from below in the area of the processing mechanism 6 in order to be sprayed has a V-shaped cross section when viewed from the width direction, which is a direction crossing the moving direction of the endless belt 42. It is said that it is formed so that it can be realized that it becomes a concave or concave shape.

  That is, in the area of the processing mechanism 6, the rollers 44 are formed as shown in FIG. 6, and as shown in FIG. It is assumed that it is formed so as to be higher than the so-called center portion of the infinite belt 42.

  For the roller 44 positioned at the end of the area of the processing mechanism 6, the endless belt 42 may be folded back so that a load is not applied to the endless belt 42 (B in FIG. 6). ), The infinite belt 42 is formed in a cylindrical roller shape 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 to using the belt conveyor 8 as described above, the belt conveyor 8 is installed along the width direction of the track as shown in FIG. Of course, it may be installed.

  At this time, regarding the driving of the belt conveyor 8, it is assumed that the above-described generator G is used for driving, and that the driving is controlled by the control panel C, that is, an emergency stop button S1 described later. Of course, the driving is stopped by the on operation of S2, S3.

  By the way, although the emergency stop buttons S1, S2, and S3 are arranged at a plurality of locations on the base B, as shown in the figure, as shown by x in FIG. Of course, it is possible to be additionally installed in the part of the supply means S, etc. (not shown).

  The emergency stop buttons S1, S2, and S3 are arranged directly on the base B, that is, directly on the base B connected to the rear frame of the truck. However, when the base B is scheduled to be lowered from the rear frame of the truck, for example, the emergency stop buttons S1, S2, and S3 are held in a foldable stand, When the base B is placed on the ground, the stands are set up so that they are appropriately placed on the base B, and the operator operates the emergency stop buttons S1, S2, and S3 in a so-called standing position. It may be possible to do so.

  In this way, the emergency stop buttons S1, S2, and S3 are arranged on the left and right sides and behind the base B, so that the operator can drive the main devices regardless of where the operator is located around the base B. It is possible to stop the operation and to be effective in ensuring safety.

  And when this emergency stop button S1, S2, S3 is turned on, it is said that the drive of the supply means S and the processing means D is stopped, and it can cope with what is called an emergency. .

  When the emergency stop buttons S1, S2 and S3 are turned on, the generator G is stopped by a signal from the control panel C, a warning light is lit, or an alarm sound is emitted. Of course it is also good.

  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 which is the earth and sand to be backfilled can be implement | achieved efficiently.

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 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 drug supply source 1 hopper 2 supply section conveyor 3 meter 4 processing section conveyor 5 grinding mechanism 6 processing mechanism 21, 43 electric Motor 51, 52, 53 Grinding rotor

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; The supply means and the processing means Insolubilization apparatus characterized by formed by an electric type for the power supply of the generator disposed on the platform. The insolubilization processing apparatus according to claim 1, wherein the base is a cargo bed connected to a rear frame of the truck. The supply means has a quantifier that enables quantification of contaminated soil supplied to the processing means by the supply section conveyor, and the quantifier is an electric type driven by a generator disposed on the base. Or the insolubilization processing apparatus of Claim 2. The insolubilization processing apparatus according to claim 1, 2 or 3, wherein the infinite belt is rotationally driven by an electric motor driven by a generator provided on the base of the supply conveyor. The insolubilization processing apparatus according to claim 1, 2, 3, or 4, wherein the infinite belt is rotationally driven by an electric motor that is driven by a generator disposed on a base of a processing section conveyor. 6. The insolubilization treatment apparatus according to claim 1, wherein the grinding rotor is rotationally driven by an electric motor which is driven by a generator provided on a base. . The insolubilization 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. Processing equipment. 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.

Images