JP6681507B1 - Batch type soil reforming system and soil reforming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a batch type soil reforming system and a soil reforming method capable of accurately setting the amount of the reforming agent added without causing defective mixing of the reforming agent with soil. SOLUTION: A batch type soil reforming system 100 is housed in a hopper feeder 20, a reforming machine 30, a belt conveyor 10B, a reforming material measuring tank 45, a moisture meter 52 for measuring the water content of soil, and a reforming machine 30. It has a weight scale 35 for measuring the weight of the soil and a control panel 80, and a plurality of water content data measured by the moisture meter 52 is transmitted to the control panel 80, and the control panel 80 corresponds to one batch. The soil weight is stored, and the control panel 80 calculates the average water content from the plurality of received water content data, and sets the amount of the modifier added based on the soil weight and the average water content for one batch. Then, the addition amount data regarding the addition amount set for the modifier measuring tank 45 is transmitted. [Selection diagram] Figure 1

Description

  The present invention relates to a batch type soil reforming system and a soil reforming method.

Soil, waste, etc. generated by decontamination are stored safely and intensively in an intermediate storage facility until the final disposal. There are various worksites in the intermediate storage facility, such as the disposal soil storage / transportation facility building, the disposal soil receiving / sorting processing facility building, and the intermediate storage / disposal facility.Separation processing is performed at the disposal soil receiving / sorting processing facility building. The modified soil is transported to an intermediate storage / disposal site by a dump truck or the like, and then stored in landfill.
The soil generated by the above-mentioned decontamination is transported to the intermediate storage facility while being stored in a large sandbag. In the sandbags, inflammable substances that are organic substances such as plant roots are mixed in addition to incombustible substances such as sand and sand, so after the carried sandbags are crushed by a bag-breaking machine, for example, the primary Combustibles and large stones are removed by separation (coarse separation). After removing the combustibles from the soil, the soil is subjected to a modification treatment by mixing with a modifier, and the secondary separation is performed to sufficiently remove the combustibles such as plants and sandbags. The treated soil will be transported to the intermediate storage and disposal site for landfill storage.

  As the soil modification treatment system and modification treatment method described above, the soil, which is the under material at the time of primary separation, is conveyed by a belt conveyor, and the water content, weight and volume of the soil are continuously measured, and these The amount of modifier added is determined based on the measured data, the amount of modifier added is continuously added to the soil, and the soil and modifier are mixed (mixed) by the reformer. A continuous soil reforming system or soil reforming method may be applied. However, in such a continuous soil reforming system or soil reforming method, since the mixing of the reforming material into the soil is likely to occur poorly because of the continuous system, there is a concern of the risk of generation of poorly reforming soil.

  Therefore, in recycling muddy soil to improved soil, a muddy soil recycling apparatus has been proposed that mass-produces good improved soil with stable quality in a batch system. Specifically, the mixer is supported on the machine frame via a load cell, and a mud conveyor, a flocculating material measuring conveyor, and a neutral solidifying material measuring conveyor are provided to the mixer, and the load cell measurement value and the flocculating material and neutrality are provided. It is an apparatus that includes a comparison calculation unit with a set value of the solidifying material, and meteres the aggregating material and the neutral solidifying material to the mixer according to a signal from the comparison calculating unit (for example, refer to Patent Document 1).

JP, 2004-130276, A

  According to the mud recycling device described in Patent Document 1, good improved soil can be mass-produced in a batch system. By the way, this mud recycling device measures the weight of the mud, puts the aggregating material and the neutral solidifying material (both of which are included in the modifying material) in the mud according to the measured weight of the mud, and agitates the mud. By mixing, improved soil is produced. However, in setting the addition amount of the modifier applied to the soil modification, as described in the continuous soil modification system and soil modification method, not only the weight of the soil but also the water content of the soil. Ratio is also an important factor. Therefore, it is possible to accurately set the addition amount of the modifier, while solving the above problems due to the continuous soil modifying system and the soil modifying method, that is, the problem of poor mixing of the modifier with the soil. A batch type soil reforming system and soil reforming method are desired.

  An object of the present invention is to provide a batch-type soil reforming system and a soil reforming method capable of accurately setting the amount of the reforming agent added without causing defective mixing of the reforming agent with soil. I am trying.

In order to achieve the above object, one aspect of the batch type soil reforming system according to the present invention is:
A hopper feeder into which soil is added,
A reformer for mixing the soil and the modifier,
A belt conveyor that conveys the soil sent from the hopper feeder to the reformer,
A modifying agent measuring tank for measuring the addition amount of the modifying agent and adding the modified material after metering to the reformer,
In the middle position of the belt conveyor, a moisture meter for measuring the water content of the soil to be transported,
A scale for measuring the weight of the soil contained in the reformer,
And a control panel,
The measurement of the water content by the moisture meter is continuously or intermittently performed, and a plurality of measured water content data is transmitted to the control panel,
The control panel stores the soil weight for one batch,
By the control panel, when the soil weight data transmitted from the weighing scale becomes the soil weight of the one batch, the operation of the belt conveyor is stopped and the soil is carried into the reformer. Stopped,
The control panel calculates an average water content from the plurality of received water content data, sets the amount of the modifier added based on the soil weight of the one batch and the average water content, and The addition amount data relating to the addition amount set for the quality material measuring tank is transmitted.

According to this aspect, by using the batch type soil reforming system, it is possible to suppress the occurrence of defective mixing of the reforming agent with the soil, which is a concern in the continuous type soil reforming system. In addition, the soil contained in the reformer is defined as one batch of soil, the soil weight of one batch is measured, and the water content ratio of the soil conveyed on the belt conveyor is measured continuously or intermittently. After that, the control panel calculates the average water content from the multiple water content data, and sets the amount of the modifier added based on the soil weight and average water content for one batch to improve the water content. The amount of material added can be set accurately.
Here, “the measurement of the water content ratio is performed intermittently” means that the measurement of the water content ratio is performed at intervals of, for example, 1 second or 2 seconds. Further, as the “weight scale”, for example, a load cell equipped in the reformer and the like can be mentioned. Further, as the “moisture meter”, a microwave moisture meter, a near infrared moisture meter, an RI (Radio Isotope) moisture meter, or the like can be applied.
Further, in the system of this aspect, the reforming agent measuring tank is arranged above the reforming machine, and the silo containing the reforming material is arranged above the reforming material measuring tank. The modifier is provided to the modifier metering tank, and the modifier metering tank receives the additive amount data regarding the additive amount set in the control panel, and supplies the modifier of the additive amount to the modifier. It is like this.
The modifier consists of a type of neutral solidifying material, and therefore it may be a system with a set of silos and a modifier metering tank. It may be a system including a solidifying material) and two sets of silos unique to each material and a modifier measuring tank. In the latter case, when the soil and the modifier are mixed by the reformer, for example, first, the aggregating material (A material) is added to the soil and mixed for a predetermined time, and then the neutral solidifying material (B material) is added to the soil. The soil is modified with two kinds of neutral solidifying materials (modifying materials) by a method such as adding and mixing for a predetermined time. The aggregating material is a polymeric material and has an action of absorbing water in the soil.
In this aspect, by the control by the control panel, when the soil weight data transmitted from the weighing scale reaches the soil weight for one batch, the operation of the belt conveyor is stopped and the soil is carried into the reformer. Be stopped. Therefore, the soil weight for one batch to be modified can be accurately specified, and in addition to applying the average water content ratio, it is possible to accurately set the amount of modifying agent added. Become.

Further, in another aspect of the batch type soil reforming system according to the present invention, the hopper feeder is provided with a first detection sensor for detecting that one or more batches of the soil have been input,
A first detection signal when the first detection sensor detects the input of the soil for one batch or more is to be transmitted to the control panel,
When the control panel receives the first detection signal, the control panel drives the hopper feeder to send out the soil, and the belt conveyor is driven to convey the soil to the reformer. The reformer is driven.

  According to this aspect, when the first detection sensor detects the input of soil for one batch or more in the hopper feeder, the soil is sent from the hopper feeder to the belt conveyor by the control of the control panel, and further to the reformer. By transporting the soil, the soil for one batch can be stably and highly accurately transported to the reformer. For example, the control panel has a PLC (Programmable Logic Controller) built in, and when the control panel receives the first detection signal from the first detection sensor, the PLC executes the sequence control to drive the belt conveyor and then the hopper feeder. By driving, the one batch of soil can be sequentially transferred from the hopper feeder to the belt conveyor. Further, by driving the reforming machine, the soil carried in via the belt conveyor can be quickly mixed by the reforming machine which is already driven.

Another aspect of the batch-type soil reforming system according to the present invention is characterized in that driving is started in the order of the reformer, the belt conveyor, and the hopper feeder.
According to this aspect, the reformer, the belt conveyor, and the hopper feeder are driven in that order by the PLC or the like incorporated in the control panel, so that the soil can be smoothly conveyed before and after the reforming.

Further, in another aspect of the batch type soil reforming system according to the present invention, the moisture meter is located below the belt conveyor,
At a position corresponding to the moisture meter above the belt conveyor, a second detection sensor for detecting that the soil has passed is installed,
The second detection signal when the second detection sensor detects the passage of the soil is transmitted to the control panel,
Only the water content data received at the same time when the second detection signal is received by the control panel is used for calculating the average water content.

According to this aspect, the second detection sensor detects the passage of soil on the belt conveyor and transmits the second detection signal to the control panel, and the control panel receives the second detection signal at the same time. By using only the water content data to calculate the average water content, it is possible to prevent the water content data (where the water content ratio is zero) at the place where soil is not present on the belt conveyor from being used for the calculation of the average water content. Calculation of high average water content is realized.
On the belt conveyor, not only a batch of soil is continuously transported, but also a plurality of soil clusters (as a whole, one batch of soil) are transported at intervals. . In the system of this aspect, the moisture content of the soil conveyed on the belt conveyor is continuously or intermittently measured by the moisture meter located below the belt conveyor. The water content in the gap is also measured by a moisture meter, and if this is used to calculate the average water content, the calculated average water content will be lower than the actual value, and accuracy will be lacking. According to this aspect, by solving such a problem, the average water content ratio can be calculated with high accuracy, and the addition amount of the modifier can be set with high accuracy.
Here, various sensors can be applied to the first detection sensor and the second detection sensor. For example, a weighing scale or the like that measures the weight of one batch may be applied as the first detection sensor. The flow switch may be applied to both the second detection sensor and the second detection sensor. The flow switch is equipped with a sensing plate, and the sensing plate is installed so as to be located at a predetermined level in each of the hopper feeder and the belt conveyor. For example, in the hopper feeder, the level position when one batch of soil is stored is specified in advance, and the flow switch (first detection sensor) is arranged so that the sensing plate comes to this level position. Keep it. On the other hand, in the belt conveyor, the height level of the soil to be conveyed is specified in advance, and the flow switch (second detection sensor) is arranged so that the sensing plate comes to this level position. When one batch of soil is stored in the hopper feeder, or when the soil is conveyed by the belt conveyor, the sensing plate of the flow switch is pushed by the soil, and the cam of the internal mechanism operates the micro switch. Operate to output contact. When the soil disappears and the restraint of the sensing plate by the soil is released, the sensing plate returns to its original position by the weight of the sensing plate and the force of the internal spring, and the contact output is released.

Further, another aspect of the batch-type soil reforming system according to the present invention is that there are two reforming lines constituted by the hopper feeder, the belt conveyor, the reforming agent measuring tank and the reforming machine. Is equipped with
It is characterized in that the control panel alternately executes the soil reforming process in each reforming line.

According to this aspect, the problem that the soil reforming efficiency may be lower than that of the continuous soil reforming system due to the batch type soil reforming system, the reforming treatment is alternately executed in the two reforming lines. Therefore, it can be effectively eliminated.
In addition, various devices may be present on the upstream side in the soil conveying direction with respect to the hopper feeder that constitutes the batch type soil reforming system. For example, after passing through a receiving belt conveyor that receives a large sandbag in which soil is stored, a bag breaking machine, a primary sorting machine (for example, a vibrating sieve machine having a sieve mesh of about 100 mm), and the like, the under sorting is performed by the primary sorting machine. The soil, which is a material, is conveyed on a belt conveyor (first belt conveyor). On the downstream side of the soil conveying direction of the first belt conveyor, the respective hopper feeders constituting the above two reforming lines are arranged, and the sorting belt arranged at the end of the first belt conveyor. By the conveyor (the conveyor in which the rotation direction of the endless belt conveyor is alternately reversed), the soil can be alternately distributed to the two hopper feeders.
The line from the receiving belt conveyor upstream from the hopper feeder to the first belt conveyor is, for example, one line, so the soil is continuously conveyed through this one line, while the soil is downstream from the hopper feeder. However, since the soil reforming treatment is intermittently performed in a batch system, it is difficult to ensure the continuity of soil transportation with the hopper feeder as a boundary. However, by providing two reforming lines like the system of the present embodiment, and by alternately distributing the soil to the two hopper feeders, the soil that is continuously conveyed is alternately provided to the two hopper feeders. Therefore, the soil can be distributed continuously, and the continuity of the entire system is ensured while soil reforming is performed in batch.
Thus, the distribution of soil to the two hopper feeders, the soil is continuously conveyed on the first belt conveyor on the upstream side of the hopper feeder, and the soil intermittently on the downstream side of the hopper feeder. It is also a process that has the buffer effect of being batch processed.
The modified soil is further transported to the downstream side by a separate belt conveyor downstream of the reformer in the soil transport direction, and a secondary sorting machine (for example, a rotation having a sieve mesh of about 20 mm). After the combustibles are sufficiently removed by the type sieving machine), the soil, which is the under material sorted by the secondary sorting machine, is transported to the intermediate storage / disposal site for landfill storage.

Further, one aspect of the batch type soil reforming method according to the present invention is,
Adding soil to the hopper feeder, of the soil sent out from the hopper feeder to the belt conveyor, carry one batch of soil into the reformer, and mix the soil and the reformer in the reformer , A batch-type soil modification method,
In the middle position of the belt conveyor, continuously or intermittently measure the water content of the soil to be transported, a water content measurement step,
An average water content calculation step of calculating an average water content from the measured plurality of water content,
Measuring the weight of the soil housed in the reformer, carrying in soil of one batch of soil weight into the reformer, a soil loading step,
Based on the soil weight and the average water content of the one batch, to set the addition amount of the modifier, a modifier addition amount setting step,
A soil reforming step of introducing the set amount of the reforming material into the reforming machine to mix the soil with the reforming material.

  According to this aspect, the average water content of the soil for one batch is calculated in the average water content calculation step, and the soil having the soil weight of one batch is carried into the reformer in the soil loading step, and the amount of the modifier added. In the setting process, by setting the amount of the modifier added based on the soil weight and the average water content for one batch, the amount of the modifier added should be set accurately before performing the soil modification treatment. You can

  ADVANTAGE OF THE INVENTION According to the batch type soil reforming system and soil reforming method of the present invention, it is possible to accurately set the amount of the reforming agent to be added, without causing defective mixing of the reforming agent with the soil.

It is a schematic diagram which shows an example of the soil improvement system containing the batch type soil improvement system which concerns on embodiment. It is a figure which shows an example of the hardware constitutions of a 2nd control board with a peripheral device. It is a figure which shows an example of a function structure of a 2nd control panel. It is a figure which shows one control example by a 2nd control panel. It is a figure which shows one control example by a 2nd control panel following FIG. 4A. It is a figure which shows one control example by a 2nd control panel following FIG. 4B. It is a figure which shows the other example of control by the 2nd control panel. It is a figure explaining the structure of an imaging device, and the imaging method of the soil by an imaging device. It is a figure which shows an example of the hardware constitutions of an image processing apparatus with a peripheral device. It is a figure showing an example of functional composition of an image processing device. It is a figure which shows an example of the setting method of the reference plane in an image processing apparatus. FIG. 9B is a diagram illustrating an example of a reference plane setting method in the image processing apparatus, following FIG. 9A. FIG. 9B is a diagram illustrating an example of a reference plane setting method in the image processing apparatus, following FIG. 9B. It is a figure explaining the improvement quality judgment method in an image processing device. It is a figure which shows an example of the hardware constitutions of a 1st control panel with a peripheral device. It is a figure which shows an example of a function structure of a 1st control panel. It is a top view of a returning device, and is a figure shown with the 3rd belt conveyor and the 4th belt conveyor. It is a BB arrow line view of Drawing 12A, and is a figure showing the situation where soil discharged by the rotation member to the left and right sides is sent out to the 4th belt conveyor via a chute. FIG. 12B is a view taken along the line C-C of FIG. 12A, showing both the normally rotating member and the rotating member that has been rotated and lowered when the drive command signal is received from the first control panel. . It is a schematic diagram which shows the other example of a soil improvement system. It is a flow chart of an example of the batch type soil improvement method concerning an embodiment. It is a flow chart of an example of a soil improvement method.

  Hereinafter, for the batch type soil reforming system and the batch type soil reforming method according to the embodiment, together with an example of the soil reforming method including the soil reforming system including the batch type soil reforming system and the batch type soil reforming method, Description will be given with reference to the accompanying drawings. In the present specification and the drawings, substantially the same components may be denoted by the same reference numerals to omit redundant description.

[Example of Soil Remediation System Including Batch-type Soil Reformation System According to Embodiment]
First, an example of a soil reforming system including the batch type soil reforming system according to the embodiment will be described with reference to FIG. 1. In addition, the illustrated example is for explaining the soil reforming system applied to the intermediate storage facility, and the soil generated by the decontamination is carried into the intermediate storage facility in a state of being accommodated in a large sandbag, and the soil is removed. It shows a system that executes a series of processes after the reforming process and before temporary placement in a stock pile.

  FIG. 1 is a schematic diagram showing an example of a soil reforming system including a batch type soil reforming system according to an embodiment. The soil reforming system 200 includes an upstream treatment system 120 from the in-situ loading of soil to primary sorting (coarse sorting) by a vibrating screener VM, and a batch-type soil reforming system 100 that subsequently performs reforming treatment on soil. It has a downstream side processing system 140 for judging whether the reforming is good or not and returning the soil to the batch type soil reforming system 100 to perform the re-reforming treatment when the reforming is not successful.

<Upstream processing system>
The upstream side processing system 120 has a temporary temporary storage place where soil generated by decontamination is transported by a dump truck DT in a state of being housed in a large sandbag FP and is unloaded in the X1 direction by a heavy machine such as a rough terrain RC. . This primary temporary storage is equipped with a sandbag loading machine SM, and the large sandbags temporarily placed in the primary temporary storage are transferred to the first receiving belt conveyor UB1 in the X2 direction by the sandbag loading SM. To be done. The large sandbag FP conveyed on the first receiving belt conveyor UB1 is then carried out to the second receiving belt conveyor UB2 in the X3 direction. Although not shown, one of the first receiving belt conveyor UB1 and the second receiving belt conveyor UB2 is equipped with a metal detector at an intermediate position, and when a dangerous metal is detected, A large sandbag FP containing a dangerous metal may be collected from the belt conveyor, unsealed to remove the dangerous metal, and then the soil may be returned to the transport line.

  The large sandbag FP conveyed on the second receiving belt conveyor UB2 is then carried out to the bag breaking machine HM in the X4 direction, the large sandbag FP is broken by the bag breaking machine HM, and the broken large sandbag is broken. The bag FP (broken piece) and the soil are mixed and conveyed to the third receiving belt conveyor UB3 in the X5 direction and conveyed on the third receiving belt conveyor UB3. Although illustration is omitted, a magnetic separator, a belt flaw detector, etc. may be installed at an intermediate position of the third receiving belt conveyor UB3.

  The debris pieces and the soil conveyed on the third receiving belt conveyor UB3 are conveyed to the vibrating screener VM in the X6 direction. The vibrating screener VM is a primary sorting machine, and has, for example, a screen mesh of about 100 mm.

  Sieving is performed by the vibrating screener VM, and the under material that has passed through the screen is conveyed to the first belt conveyor 10A in the X7 direction. On the other hand, the over material that does not pass through the sieve is transferred to a residue yard for each type such as a container or stone via an over material conveying belt conveyor (not shown).

  The above is the configuration of the upstream processing system 120. Next, the batch type soil reforming system 100 according to the embodiment will be described below.

<Batch-type soil reforming system according to the embodiment>
As shown in FIG. 1, the batch-type soil reforming system 100 includes a hopper feeder 20 into which soil is added, a reformer 30 that mixes soil and a reforming material, and a soil sent from the hopper feeder 20. A second belt conveyor 10B (an example of a belt conveyor) that conveys to the quality machine 30, and a modifying material measuring tank 45 that measures the addition amount of the modifying material and adds the measured modifying material to the modifying machine 30. , And a second control panel 80 (an example of a control panel).

  A water meter 52 for measuring the water content ratio of the soil to be conveyed is provided below the second belt conveyor 10B at a position in the middle of the second belt conveyor 10B and close to the reformer 30. As the moisture meter 52, a microwave moisture meter, a near infrared moisture meter, an RI (Radio Isotope) moisture meter, or the like can be applied. Among them, the RI moisture meter irradiates the soil conveyed on the second belt conveyor 10B with fast neutrons generated from radioisotopes and measures thermal neutrons generated from the soil to evaluate the amount of hydrogen atoms in the soil. By doing so, the water content ratio can be accurately measured, which is preferable.

  The reformer 30 has a plurality of mixing paddles inside, and a weight scale 35 (load cell) is installed below the reformer 30. The weight scale 35 measures the soil weight for one batch. It is like this.

  A reforming material measuring tank 45 is arranged above the reforming machine 30, and a silo 40 for accommodating the reforming material is arranged above the reforming material measuring tank 45. The modifier is provided from the silo 40 to the modifier metering tank 45, and the modifier metering tank 45 receives the additive amount data regarding the additive amount set by the second control panel 80. Is supplied to the reformer 30.

  In the batch-type soil reforming system 100, two types of reforming agents (for example, a flocculating material (A material) and a neutral solidifying material (B material)) are sequentially added to the soil and mixed. It is provided with two sets of silos 40A and 40B specific to the material and modifier tanks 45A and 45B.

  The soil is gradually transferred from the first belt conveyor 10A to the hopper feeder 20 in the X8 direction, so that the soil is gradually accommodated in the hopper feeder 20.

  Next, the configuration of an example of the second control panel 80 will be described with reference to FIGS. 2 and 3, and the control of various devices by the second control panel 80 will be described with reference to FIGS. 4A to 4C and FIG. 5. An example of the content will be described. Here, FIG. 2 is a diagram showing an example of the hardware configuration of the second control panel together with peripheral devices, and FIG. 3 is a diagram showing an example of the functional configuration of the second control panel. 4A to 4C are diagrams sequentially showing one control example by the second control panel, and FIG. 5 is a diagram showing another control example by the second control panel.

  The second control panel 80 is composed of a computer and includes a CPU (Central Processing Unit) 81, a main storage device 82, an auxiliary storage device 83, an input / output interface 84, and a communication interface 85 which are mutually connected by a connection bus. There is. The main storage device 82 and the auxiliary storage device 83 are computer-readable recording media. The above-mentioned constituent elements may be provided individually or some of the constituent elements may not be provided.

  The CPU 81 is also called an MPU (Microprocessor) or a processor, and the CPU 81 may be a single processor or a multiprocessor. The CPU 81 is a central processing unit that controls the entire second control panel 80 including a computer. The CPU 81 expands a program stored in the auxiliary storage device 83 into a work area of the main storage device 82 so as to be executable, and controls peripheral devices through the execution of the program, thereby performing a function matching a predetermined purpose. I will provide a.

  The main storage device 82 stores a computer program executed by the CPU 81, data processed by the CPU 81, and the like. The main storage device 82 includes, for example, a flash memory, a RAM (Random Access Memory), and a ROM (Read Only Memory). The auxiliary storage device 83 stores various programs and various data in a recording medium in a readable and writable manner, and is also called an external storage device. The auxiliary storage device 83 stores, for example, an OS (Operating System), various programs, various tables, and the like. The OS includes, for example, a communication interface program for exchanging data with an external device or the like connected via the communication interface 85. The external device and the like include, for example, an information processing device such as a personal computer (PC), a workstation (WS), a server, and a mobile terminal connected to a network, an external storage device, and the like.

  The auxiliary storage device 83 is used, for example, as a storage area that supplements the main storage device 82, and stores a computer program executed by the CPU 81, data processed by the CPU 81, and the like. The auxiliary storage device 83 is a silicon disk including a non-volatile semiconductor memory (flash memory, EPROM (Erasable Programmable ROM)), a hard disk drive (HDD) device, a solid state drive device, or the like. Further, as the auxiliary storage device 83, a drive device for a removable recording medium such as a CD drive device, a DVD drive device, and a BD drive device is exemplified. Examples of removable recording media include CD, DVD, BD, USB (Universal Serial Bus) memory, SD (Secure Digital) memory card, and the like.

  The communication interface 85 is an interface with a network connected to the second control panel 80. The communication interface 85 receives the water content data transmitted from the moisture meter 52 and the weight data of one batch of soil transmitted from the weighing scale 35 via the network. Further, the communication interface 85 transmits a drive stop signal to the second belt conveyor when the soil weight data transmitted from the weighing scale 35 reaches the soil weight for one batch via the network. In addition, as described below, the second detection that receives the first detection signal transmitted from the first detection sensor 25 (see FIG. 4A etc.) and is transmitted from the second detection sensor 27 (see FIG. 4A etc.) Signals are received, and drive control signals and drive stop signals for the hopper feeder 20, the second belt conveyor 10B, and the reformer 30 are transmitted to each device based on these received signals. More specifically, based on the first detection signal, the third belt conveyor 10C, the reformer 30, the second belt conveyor 10B, and the hopper feeder 20 are sequentially driven from the downstream side in the soil conveying direction. The third belt conveyor 10C and the reformer 30 are continuously driven until, for example, a drive stop signal is received, and the second belt conveyor 10B is once driven, for example, at the stage when the weight measurement for one batch in the reformer 30 is completed. Stop and restart when the drive command signal for weighing the next batch is received.

  Here, the network includes a public network such as the Internet, a wireless network such as a mobile phone network, a dedicated network such as a VPN (Virtual Private Network), and a network such as a LAN (Local Area Network).

  The input / output interface 84 is an interface for inputting / outputting data to / from a device connected to the second control panel 80. A keyboard, a pointing device such as a touch panel and a mouse, an input device such as a microphone, and the like are connected to the input / output interface 84. The second control panel 80 receives an operation instruction or the like from an operator who operates the input device via the input / output interface 84.

  Further, for example, a display device such as a liquid crystal panel (LCD: Liquid Crystal Display) or an organic EL panel (EL: Electroluminescence), an output device such as a printer or a speaker is connected to the input / output interface 84. The second control panel 80 outputs data and information processed by the CPU 81 and data and information stored in the main storage device 82 and the auxiliary storage device 83 via the input / output interface 84.

  Execution of programs by the CPU 81 controls execution of various operations of the hopper feeder 20, the second belt conveyor 10B, the reforming machine 30, and the reforming material measuring tank 45.

  Further, as shown in FIG. 3, the second control panel 80 causes the CPU 81 to execute the program to at least the input / output unit 802, the average water content ratio calculation unit 804, the modifier addition amount setting unit 806, and the drive control unit 808. , And various functions of the storage unit 810. At least a part of the processing functions may be provided by a DSP (Digital Signal Processor), a GPU (Graphics Processing Unit), or the like, and similarly, at least a part of the processing functions may be provided by an FPGA (Field-Programmable Gate). It may be a dedicated LSI (large scale integration) such as an Array), a numerical operation processor, an image processing processor, or other digital circuits.

  The input / output unit 802 receives the water content ratio data transmitted from the moisture meter 52 and the weight data of one batch of soil transmitted from the weight scale 35, and a construction manager or the like operates an operation panel (not shown) or the like. Accepts various data that are directly input via Further, the input / output unit 802 receives the first detection signal transmitted from the first detection sensor 25 (see FIG. 4A etc.) and the second detection signal transmitted from the second detection sensor 27 (see FIG. 4A etc.). .

  The water content data, the soil weight data, the first detection signal, and the second detection signal received by the input / output unit 802 are stored in the storage unit 810. The soil weight data for one batch is directly input by the construction manager or the like and accepted by the input / output unit 802, and is stored in the storage unit 810 in advance. Moreover, since the water content ratio data transmitted from the moisture meter 52 is transmitted at any time, the water content ratio data received by the input / output unit 802 is stored in the storage unit 810 each time.

  As will be described in detail below, the water content ratio data received by the input / output unit 802 and the second detection signal received at the same time as the water content ratio data are received as a set of related data, and both data are received at the same time. Only then will the water content data be applied to the calculation of the average water content. On the other hand, when the second detection signal is not received at the same time when the water content data is received, the water content data is not applied to the calculation of the average water content and is not stored in the storage unit 810.

  The water content ratio data received by the input / output unit 802 is output and displayed on a display monitor (not shown) included in the second control panel 80 each time. The soil weight data transmitted from the weighing scale 35 is also output and displayed on the display monitor of the second control panel 80 each time. When the soil weight data received and stored each time coincides with the soil weight data for one batch stored in advance in the storage unit 810 by the construction manager or the like, the display monitor displays a reformer. A lighting display and the like for notifying that one batch of soil has been carried into 30 is executed.

  Here, as shown in FIG. 4A, the soil is carried into the hopper feeder 20 from the first belt conveyor 10A in the X8 direction, and the volume of the soil S gradually increases in the hopper feeder 20 in the Z1 direction.

  A first detection sensor 25 is mounted above the hopper feeder 20, and the second detection sensor 25 is provided at a position on the second belt conveyor 10B near the reformer 30 and corresponding to the moisture meter 52. A sensor 27 is mounted. The first detection sensor 25 and the second detection sensor 27 are both formed by a flow switch, and the flow switches 25 and 27 are provided with sensing plates 26 and 28, respectively, and the sensing plates 26 and 28 are the hopper feeder 20 and the second sensor. The belt conveyors 10B are installed so as to be located at predetermined levels.

  The installation level of the sensing plate 26 in the hopper feeder 20 is the level position when one batch or more of soil is stored. On the other hand, the installation level of the sensing plate 28 on the second belt conveyor 10B is a level position at a predetermined height of the soil when the soil S is transported on the second belt conveyor 10B.

  When the soil S of one batch or more is stored in the hopper feeder 20, the sensing plate 26 of the flow switch 25 is pushed by the soil S, and the cam of the internal mechanism operates the microswitch to output the contact, A first detection signal indicating that one batch or more of soil S has been stored in the hopper feeder 20 is transmitted to the second control panel 80 in the Y1 direction.

  When the input / output unit 802 of the second control panel 80 receives the first detection signal, the CPU 81 executes the sequence control. This sequence control is stored in the auxiliary storage device 83. Specifically, after receiving the first detection signal, the third belt conveyor 10C is driven, then the second belt conveyor 10B is driven, and then the hopper. In this control, the feeder 20 is driven and then the reformer 30 is driven.

  When the input / output unit 802 of the second control panel 80 receives the first detection signal, the drive control unit 808 drives the drive motor (an example of an actuator, not shown) of the third belt conveyor 10C in the Y2 direction. The command signal is transmitted and the endless second belt conveyor 10C is driven in the Z6 direction.

  Next, based on the sequence control, the drive control unit 808 transmits a drive command signal in the Y3 direction to a drive motor (an example of an actuator, not shown) that rotates the mixing paddle 32 of the reformer 30. The mixing paddle 32 of the reformer 30 is rotationally driven in the Z5 direction.

  Next, based on the sequence control, the drive control unit 808 transmits a drive command signal in the Y4 direction to the drive motor (an example of an actuator, not shown) of the second belt conveyor 10B, and the endless second The belt conveyor 10B drives in the Z4 direction.

  Next, based on the sequence control, the drive control unit 808 transmits a drive command signal in the Y5 direction to the drive motor (an example of an actuator, not shown) of the hopper feeder 20, and the hopper feeder 20 moves in the Z3 direction. To drive.

  The soil S is gradually discharged from the hopper feeder 20 to the second belt conveyor 10B, and at the stage when one batch of soil is discharged, the restraint of the sensing plate 26 from the soil is released and the flow switch 25 of the flow switch 25 is released. The operation of the included microswitch is stopped. Due to this operation stop, a drive stop command signal for stopping the delivery of the soil S is transmitted from the drive control unit 808 to the hopper feeder 20, and the hopper feeder 20 ends the weight measurement for one batch by the reformer 30. At that time, the delivery of the soil S is stopped.

  As described above, the hopper feeder 20 has the first detection sensor 25, and the second control panel 80 causes the soil S for one batch to be the second belt based on the first detection signal transmitted from the first detection sensor 25. By performing the control of sending out to the conveyor 10B, it is possible to accurately perform the reforming process of the soil S for one batch.

  As shown in FIG. 4B, the soil S conveyed on the second belt conveyor 10B has a continuous water content ratio when reaching the upper side of the moisture meter 52 installed at the lower position of the second belt conveyor 10B. Alternatively, the water content data, which is measured intermittently and measured at any time regarding the transported soil S, is transmitted to the second control panel 80 in the Y6 direction each time. For example, a plurality of water content ratios can be measured by measurement (intermittent measurement) at intervals of about 1 second to 2 seconds.

  Further, a second detection sensor 27 is provided at a position corresponding to the moisture meter 52 across the second belt conveyor 10B, and when the soil S passes through, the sensing plate 28 of the flow switch 27 is at the soil S. When pushed, the cam of the internal mechanism actuates the microswitch to output a contact, and a second detection signal indicating that the soil S has passed is transmitted to the second control panel 80 in the Y7 direction.

  In the second control panel 80, the water content ratio data received by the input / output unit 802 and the second detection signal received at the same time as the water content ratio data are received as a set of related data, and both data are received at the same time. If so, the water content data is applied to the calculation of the average water content.

  A weight scale 35 is installed at the lower end of the reformer 30. As shown in FIG. 4C, when the reformer 30 stores one batch of soil, a soil acceptance signal for one batch is received. Is transmitted to the second control panel 80 in the Y8 direction. When the input / output unit 802 of the second control panel 80 receives the soil acceptance signal for one batch, the drive control unit 808 transmits a drive stop signal to the second belt conveyor 10B to drive the second belt conveyor 10B. After that, the supply of soil will be stopped.

  As shown in FIG. 3, in the average water content calculation unit 804 of the second control panel 80, only the water content data in which the second detection signal is received at the same time is aggregated to calculate the total value, and the total value is used as the water content ratio. Calculate the average water content by dividing by the number of data.

  In one batch of soil conveyed on the second belt conveyor 10B, distribution of water content may occur at each location, but as shown in the figure, the water content at multiple locations of the soil is measured and the average water content is calculated. By doing so, it becomes possible to accurately specify the water content of the soil for one batch.

  The average water content ratio calculated by the average water content ratio calculation unit 804 is stored in the storage unit 810. As described above, the water content data used to calculate the average water content is only the water content data transmitted from the second detection sensor at the same time.

  As shown in FIG. 3, in the modifier addition amount setting unit 806 of the second control panel 80, based on the soil weight for one batch stored in the storage unit 810 and the calculated average water content ratio, Set the amount of modifier added. The addition amount data regarding the addition amount of the A material, which is the modifier (for example, the aggregating material) set by the modifier addition amount setting unit 806, is transmitted from the drive control unit 808 to the modifier measuring tank 45A in the Y8 direction. . Among the A materials supplied from the silo 40A for the A materials in the X11 direction, the amount of addition of the A material based on the addition amount data is measured in the modifying material measuring tank 45A, and is supplied to the reformer 30 in the X12 direction. In the reformer 30, the material A is stirred and mixed with the soil S for one batch for a predetermined time.

  Next, the addition amount data regarding the addition amount of the B material (for example, neutral solidifying material) which is the modifier set by the modifier addition amount setting unit 806 is transferred from the drive control unit 808 to the modifier measuring tank 45B. It is transmitted in the Y9 direction. Among the B materials supplied from the silo 40B for the B materials in the X11 direction, the addition amount of the B material based on the addition amount data is measured in the modifier measuring tank 45B, and is supplied to the reformer 30 in the X12 direction. In the reformer 30, the material B is stirred and mixed with the soil S for one batch for a predetermined time. In this way, the soil S is modified by stirring and mixing the two types of modifying materials and the soil S. It should be noted that only one type of modifier may be added to the soil, and in this case, the system will include one set of silo and modifier tank.

  The soil S is agitated and mixed with the two types of reforming materials by the reformer 30, and the reformed soil is carried out from the bottom of the reformer 30 to the third belt conveyor 10C in the X13 direction, It is conveyed by the three-belt conveyor 10C.

  Here, as shown in FIG. 5, the soil S transported on the second belt conveyor 10B is not continuous as shown in FIGS. 4A and 4B, and the soil S1 in the front of the traveling direction and the soil S1 in the rear of the traveling direction are not continuous. There may be a case where the gap G is conveyed between the soils S2. In such a case, when the moisture content of the gap G (moisture content is zero) is measured by the moisture meter 52 and this moisture content is used to calculate the average water content, the average water content becomes lower than the actual value. , Will lack accuracy.

  However, in the batch type soil reforming system 100, the second detection sensor 27 is provided at a position corresponding to the moisture meter 52, and only the water content ratio data obtained by simultaneously receiving the second detection signal by the second detection sensor 27 is averaged in water content. By using this for the calculation of the ratio, it becomes possible to solve such problems and to calculate the average water content ratio with high accuracy, and it is possible to set the addition amount of the modifier with high accuracy.

  As described above, since the soil reforming system 200 includes the batch-type soil reforming system 100, it is possible to suppress the occurrence of poor mixing of the reforming agent with the soil, which is a concern in the continuous soil reforming system. it can. In addition, the soil contained in the reformer 30 is defined as one batch of soil, the soil weight of one batch is measured, and the water content ratio of the soil conveyed on the second belt conveyor 10B is continuously measured. After carrying out intermittently or intermittently, the average water content is calculated from the plurality of water content data in the second control panel 80, and the addition amount of the modifier is determined based on the soil weight and the average water content for one batch. By setting the amount, the addition amount of the modifier can be accurately set.

  The above is the configuration of the batch-type soil reforming system 100. Next, the downstream processing system 140 will be described below.

<Downstream processing system>
Returning to FIG. 1, the downstream processing system 140 includes a third belt conveyor 10C, an imaging device 54, an image processing device 60, a fourth belt conveyor 10D, a returning device 70, and a first control panel 90. .

  The imager 54 is disposed above the intermediate position of the third belt conveyor 10C, and images the soil modified by the reformer 30.

  As shown in FIG. 6, the imaging device 54 has a semiconductor laser oscillator 56 and a diffusion lens 57 inside a housing 55, and the diffusion laser oscillated from the semiconductor laser oscillator 56 is formed into a band shape by the lens 57. The soil S that is unfolded and conveyed on the lower third belt conveyor 10C is irradiated.

  The imaging device 54 further includes a condenser lens 58 and a CMOS (Complementary MOS) image sensor 59 inside the housing 55, and collects the reflected light reflected by the uneven surface of the soil S surface. The light is condensed by 58 and is imaged by the CMOS image sensor 59 to detect the shape change and height change of the uneven surface of the soil S.

  With respect to the soil S that moves along with the movement of the third belt conveyor 10C in the Z6 direction, a reference plane is created for each image of a width Δb interval that is continuously captured, and the height of the reference plane in each image is projected. The protruding area is measured.

  The image data captured by the image capturing device 54 is transmitted to the image processing device 60 as needed. The image processing device 60 is a device that receives image data from the image pickup device 54 and determines whether the soil subjected to the reforming process in the batch-type soil reforming system 100 is good or bad. Here, FIG. 7 is a diagram showing an example of the hardware configuration of the image processing apparatus together with peripheral devices, and FIG. 8 is a diagram showing an example of the functional configuration of the image processing apparatus.

  The image processing device 60 is composed of a computer and includes a CPU 61, a main storage device 62, an auxiliary storage device 63, an input / output interface 64, and a communication interface 65 which are mutually connected by a connection bus, and basic hardware The configuration is similar to that of the second control panel 80, but the peripheral devices are the image pickup device 54 and the first control panel 90. The first control panel 90 will be described in detail below.

  Further, as shown in FIG. 8, the image processing apparatus 60 provides at least various functions of the input / output unit 602, the improvement pass / fail judgment unit 604, and the storage unit 606 by executing the program by the CPU 61.

  The input / output unit 602 receives the image data transmitted from the imaging device 54. Also, various data directly input by a construction manager or the like via an operation panel (not shown) or the like is accepted. These various data include threshold values for the quality of modification of the soil S, threshold values for the protruding height of the protruding region protruding above or below the reference plane and the protruding area, and the protruding height and protruding amount in one batch. Includes a threshold value or the like regarding the number of times that both of the two areas do not satisfy the threshold value.

  The image data and the threshold value regarding the quality of modification of the soil S received by the input / output unit 602 are stored in the storage unit 606.

  The improvement quality determination unit 604 sets the reference surface of the soil S based on the image data. Here, FIGS. 9A to 9C are diagrams showing an example of a reference plane setting method in the image processing apparatus in that order. 9A to 9C is the uneven line (solid line) on the soil surface as seen from a cross section of the uneven surface of the soil surface shown in FIG. 6 which is orthogonal to the Z6 direction which is the transport direction.

  The reference plane can be set by flattening the height data (image data) of the soil S with various extraction sizes (1 to 256 pixels). As an example of the method of creating the reference plane, first, as shown in FIG. 9A, a plurality of points p1 to p8 are set at predetermined intervals s1 on the uneven line (outline line) of the soil in the image data, By creating an interpolation line passing through the points p1 to p8 (the first interpolation line is a dotted line), the initial unevenness in the image data is made relatively gentle.

  Next, as shown in FIG. 9B, a plurality of points p9 to p13 are set at a predetermined interval s2 with respect to the created first interpolation line, and a second point passing through each of the points p9 to p13 is set. By creating an interpolation line (dashed-dotted line), the unevenness of the line is made smoother than that of the first interpolation line.

  Next, as shown in FIG. 9C, for example, the reference plane is created by converting the second interpolation line into the position of the horizontal line. At that time, the uneven line on the surface of the soil is processed according to the conversion. There are various other methods for creating the reference plane, and the method shown in the figure is only an example.

  After the reference plane is set, the improvement quality determination unit 604 determines that the improvement is defective when various elements exceed the threshold values stored in the storage unit 606. As one of them, as shown in FIG. 9D, the case where the protrusion heights h1 to h3 of the protrusion regions protruding above the reference plane exceed the threshold h0 regarding the protrusion height stored in the storage unit 606 is improved. It is determined to be defective. Alternatively, if the protruding areas A1 to A3 of the protruding area protruding above the reference surface exceed the threshold value A0 related to the protruding area stored in the storage unit 606, it is determined that the improvement is defective. Alternatively, in a batch of soil, both the projecting height and the projecting area exceed the threshold values h0 and A0, and when there is a predetermined number of times (for example, five times in one batch) or more, improvement is not good. To determine. As described above, there are various methods for determining whether the improvement is good or bad in the improvement quality determination unit 604, and it is preferable that the construction manager specify an accurate determination method in advance.

  When the improvement quality determination unit 604 determines that the soil S is poorly modified, the image processing apparatus 60 sends to the first control panel 90 a failure signal indicating that the modified soil S is poorly modified. Sent. The first control board 90 transmits a drive command signal for driving the returning device 70 to the returning device 70, and returns the soil S reformed by the driven returning device 70 to the first belt conveyor 10A again to re-reform. Perform processing.

  Here, FIG. 10 is a diagram showing an example of the hardware configuration of the first control panel together with peripheral devices, and FIG. 11 is a diagram showing an example of the functional configuration of the first control panel. The first control panel 90 is composed of a computer, and includes a CPU 91, a main storage device 92, an auxiliary storage device 93, an input / output interface 94, and a communication interface 95, which are interconnected by a connection bus. The hardware configuration is the same as that of the second control panel 80 and the image processing device 60, but the peripheral devices are the image processing device 60 and the returning device 70.

  The execution of the program by the CPU 91 controls the operation of the returning device 70. Further, as shown in FIG. 11, the first board 90 provides at least various functions of the input / output unit 902, the returning device drive control unit 904, and the storage unit 906 by executing the program by the CPU 91.

  The input / output unit 902 receives a failure signal transmitted from the image processing device 60 indicating that the soil S is poorly modified.

  In the storage unit 906, the rotation angle of the returning device 70 that is rotated and lifted when the defective signal is not received (the soil S being conveyed does not collide with the rotating member forming the returning device 70 at all times). Angle) is stored.

  When the input / output unit 902 receives the defective signal, the return device drive control unit 904 transmits a drive command signal for driving the return device 70 to the return device 70.

  Here, FIG. 12A is a plan view of the returning device, showing the third belt conveyor and the fourth belt conveyor together, and FIG. 12B is a view taken along the line BB of FIG. 12A. It is a figure which shows the situation where the soil discharged | emitted by the member to the right and left sides is being sent out to the 4th belt conveyor via the chute. FIG. 12C is a view taken along the line CC in FIG. 12A, showing a rotating member at all times and a rotating member in a state in which the rotating member is rotated down when a drive command signal is received from the first control panel. FIG.

  The returning device 70 includes a frame 71 that is assembled above the third belt conveyor 10C so as to straddle it, and a rotating shaft 72 that extends in a direction orthogonal to the transport direction of the third belt conveyor 10 in the frame 71. A rotary member 73 that rotates about the rotary shaft 72 and a cylinder mechanism 74 (an example of an actuator) that rotates the rotary member 73 are included.

  The rotating member 73 includes a collision surface 73a with which the modified soil S conveyed by the third belt conveyor 10C collides, and the collision surface 73a has a V shape or a U shape in plan view (FIG. 12A). Has a V shape).

  The rotating member 73 further includes chutes 75 on the left and right sides of the frame 71. As shown in FIG. 12A, the soil conveyed on the third belt conveyor 10C in the Z6 direction and collided with the collision surface 73a and discharged in the Z7 direction to the left and right along the plan view shape of the collision surface 73a is The chute 75 flows down in the X17 direction, is arranged below the third belt conveyor 10C, and is fed to the fourth belt conveyor 10D which is driven in the Z8 direction.

  As shown by the alternate long and short dash line in FIG. 12C, the rotating member 73 is normally lifted by the cylinder mechanism 74 about the rotating shaft 72 at an angle at which the conveyed soil S does not collide with the collision surface 73a. . On the other hand, when the cylinder mechanism 74 receives the drive command signal from the returning device drive control unit 904, the cylinder mechanism 74 drives to extend the rod 74a in the Z9 direction, and the rotating member 73 moves the Z10 about the rotating shaft 72. By being lowered in the direction, the collision surface 73a and the soil S to be conveyed are directly faced.

  Returning to FIG. 1, the soil conveyed via the fourth belt conveyor 10D is returned to the first belt conveyor 10A in the X18 direction, and conveyed again to the batch type soil reforming system 100 via the first belt conveyor 10A. The reformer 30 performs re-reforming treatment. The re-modified soil is conveyed again to the downstream processing system 140, and the quality of the reform is determined again.

  As shown in FIG. 1, in the downstream processing system 140, the soil determined to be good in reforming or the soil determined to be good in reforming after the re-reforming treatment is supplied from the third belt conveyor 10C to the rotary type sieve. It is carried out to the machine RM in the X14 direction. The rotary sieving machine RM is a secondary sorting machine, and has, for example, a sieve mesh of about 20 mm.

  The sieving is performed by the rotary sieving machine RM, and the under material that has passed through the sieve is conveyed to the fifth belt conveyor 10E in the X15 direction. On the other hand, the over material that does not pass through the sieve is separated into incombustible materials such as stones and metals, and combustible materials such as plants and roots through an over material conveying belt conveyor (not shown).

  The under material carried out to the fifth belt conveyor 10E in the X15 direction was carried out in the X16 direction to the stock pile SP as soil that had been sufficiently modified to remove combustible substances such as vegetation and sandbags. Primary storage. The soil primarily stored in the stock pile SP is then loaded into a dump truck, transported to an intermediate storage / disposal site that constitutes an intermediate storage facility, and stored in landfill.

  As described above, since the soil reforming system 200 includes the downstream processing system 140, the image processing device 60 determines whether the soil reformed by the reformer 30 is good or bad, and reforms the soil. When it is determined that the treated soil is poorly reformed, the returning device 70 is driven to return the soil that is determined to be poorly reformed to the first belt conveyor 10A on the upstream side of the reformer 30. By performing the reforming process again by the reformer 30, it is possible to effectively generate poorly reformed soil while using an appropriate amount of the reforming material according to the weight and the water content of the soil to be reformed. Can be suppressed.

[Other examples of soil reforming system]
Next, with reference to FIG. 13, another example of the soil reforming system will be described. Here, FIG. 13 is a schematic diagram showing another example of the soil reforming system.

  A soil reforming system 300 shown in FIG. 13 is an upstream processing system in which a sorting belt conveyor FB is added between a vibrating screener VM and a first belt conveyor 10A, in addition to the upstream processing system 120 shown in FIG. 120A, two lines of batch type soil reforming system 100 (reforming line) arranged on the left and right of the distribution belt conveyor FB, and downstream of each batch type soil reforming system 100. This is a system including a processing system 140A. In the downstream processing system 140A of the two lines, drive control is executed by the common first control panel 90.

  After the soil is carried out from the vibrating screener VM to the distribution belt conveyor FB in the X7 direction, the distribution belt conveyor FB is configured to rotate the drive motor (an example of an actuator, not shown) alternately in the forward and reverse directions. The earth and sand that have been continuously conveyed by the treatment system 120 are alternately distributed to the two-line batch type soil reforming system 100, and are similarly conveyed in the X8 ′ direction to the first belt conveyor 10A that is alternately rotated forward and backward. .

  With the configuration shown in the figure, since the batch type soil reforming system 100 is adopted, the problem that the soil reforming efficiency may be lower than that of the continuous type soil reforming system is solved by the two reforming lines 100. It can be effectively resolved by executing them alternately.

  Further, while the soil is continuously conveyed in the upstream side treatment system 120, the soil type reforming treatment is intermittently performed in the batch type soil reforming system 100. In the soil reforming system 100, it becomes difficult to ensure the continuity of soil transportation. However, according to the soil reforming system 300, the two reforming lines 100 are provided, and the soil is alternately distributed to the two hopper feeders 20, so that the soil that is continuously conveyed can be fed to the two hopper feeders. Therefore, the soil can be distributed in an alternating manner, so that the soil can be reformed batchwise, and the continuity of the entire system can be secured. In this way, the soil is distributed to the two hopper feeders 20 by the soil being continuously conveyed on the first belt conveyor 10A on the upstream side of the hopper feeder 20 and the soil on the downstream side of the hopper feeder 20. It is also a process that has a buffer function of being batch-processed intermittently.

[Batch-type soil modification method according to the embodiment]
Next, an example of the batch-type soil reforming method according to the embodiment will be described with reference to FIG. 14, and an example of the soil reforming method will be described with reference to FIGS. 14 and 15. Here, FIG. 14 is a flowchart of an example of the batch-type soil reforming method according to the embodiment, and FIG. 15 is a flowchart of an example of the soil reforming method together with FIG. 14.

  First, in FIG. 14, the soil generated by the decontamination that has been conveyed through the upstream processing system 120 is carried out to the first belt conveyor 10A, and the soil is conveyed by the first belt conveyor 10A (step S402). . Here, in the upstream side processing system 120, the soil generated by the decontamination is sequentially conveyed to the plurality of receiving belt conveyors UB1 to UB3 in a state of being accommodated in the large sandbag FP, and the large bag sandbag FP is conveyed by the bag breaking machine HM. The crushed bag is crushed, and the crushed large sandbag FP (fragmented piece) and the soil are mixed and carried out to the vibration sieving machine VM for primary separation, whereby the sieving is performed by the vibration sieving machine VM. The under material that has passed through the sieve is carried out to the first belt conveyor 10A.

  Next, the soil, which is an under material, is carried into the hopper feeder 20 via the first belt conveyor 10A (step S404).

  A first detection sensor 25 is mounted above the hopper feeder 20. When the soil S of one batch or more is stored in the hopper feeder 20, the first detection sensor 25 detects this (step). S406).

  When the first detection signal indicating that the soil S of one batch or more has been stored is transmitted from the first detection sensor 25 to the second control panel 80, the second control panel 80 executes the sequence control, and the second control panel 80 executes the sequence control. The belt conveyor 10B, the hopper feeder 20, and the reformer 30 are sequentially driven (step S408).

  A moisture meter 52 is mounted near the reformer 30 in the second belt conveyor 10B, and the moisture content of the soil S conveyed on the second belt conveyor 10B is continuously or continuously measured by the moisture meter 52. The measurement is performed intermittently (step S409, water content ratio measuring step).

  The second detection sensor 27 is mounted on the second belt conveyor 10B at a position corresponding to the moisture meter 52, and when the soil S passes on the second belt conveyor 10B, the moisture meter 52 has passed. The water content of the soil S is measured, and the second detection sensor 27 detects that the soil S has passed. On the other hand, even when the soil S does not pass over the moisture meter 52, the moisture meter 52 measures the water content ratio (zero), but the second detection sensor 27 naturally does not detect the passage of the soil S.

  The water content ratio data obtained by the moisture meter 52 and the second detection signal obtained by the second detection sensor 27 (a signal indicating that the soil S has passed) are transmitted to the second control panel 80. Therefore, the second control panel 80 determines whether or not the second detection sensor 27 has detected the passage of the soil S based on whether or not the second detection signal has been received (step S410).

  The second control panel 80 receives the water content data and accepts them as a set of related data only when the second detection signal is received at the same time as the water content data, and calculates the average water content ratio of the received water content data. It is stored as water content data for use (step S412).

  On the other hand, if the second detection signal is not received at the same time as the water content data, the received water content data is not stored as the water content data for calculating the average water content. Since the second detection signal is not received, the moisture content data measured by the moisture meter does not measure the moisture content of the soil, but the moisture content (zero) in the gap between the transported soils. This is because it indicates that (step S414).

  A weight scale 35 is installed below the reformer 30, and the weight of the soil in the reformer 30 is measured by the weight scale 35. When it is determined that the soil weight data transmitted is the soil weight for one batch (step S416, soil loading step), a drive stop signal is transmitted to the second belt conveyor 10B to send the second belt conveyor. The subsequent supply of soil by driving 10B is stopped (step S418).

  Next, in the second control panel 80, only the water content data in which the second detection signal is received at the same time is totaled, the total value is calculated, and the total value is divided by the water content data number to obtain one batch. The average water content of the soil is calculated (step S420, average water content calculation step).

  Next, in the second control panel 80, the addition amount of the modifier is set based on the soil weight for one batch and the calculated average water content ratio (step S422, modifier addition amount setting step). .

  The addition amount data regarding the addition amount of the modifier set in the second control panel 80 is transmitted from the second control panel 80 to the modifier weighing tank 45. In the reforming material measuring tank 45, the reforming material is supplied from the silo 40. In the reforming material measuring tank 45, the addition amount of the reforming material is measured and measured based on the addition amount data. The amount of the modifier is supplied to the modifier 30, and the modifier is stirred and mixed with the soil S for one batch in the modifier 30 for a predetermined time, whereby the soil S is modified (step S424). , Soil modification process).

  The above flow is an example of the batch-type soil reforming method according to the embodiment. The soil S that has been subjected to the reforming treatment by the batch type soil reforming method is carried out to the third belt conveyor 10C on the downstream side of the batch type soil reforming system 100. As shown in FIG. 15, the imager 54 is disposed above the intermediate position of the third belt conveyor 10C, and images the soil modified by the reformer 30 (step S426).

  The image data picked up by the image pickup device 54 is transmitted to the image processing device 60 at any time, and the image processing device 60 receives the image data by the image pickup device 54 and performs the modification processing in the batch type soil modification system 100. It is determined whether or not the soil has been modified (step S428, quality determination step). In the image processing device 60, the reference surface of the soil S is set based on the image data, and in the image data, the protruding height and the protruding area of the protruding region protruding above the reference surface are compared with those threshold values. If it is less than or equal to the threshold, it is determined that the reforming is good, and if it exceeds the threshold, it is determined that the reforming is poor. Alternatively, when both the protruding height and the protruding area in one batch of soil exceed their threshold values, a case where the improvement is judged to be defective is the case where it exists a predetermined number of times or more.

  When it is determined that the modification is good in the modification determination (step S430), the modified soil S is modified from the image processing device 60 to the first control panel 90. A signal indicating that the soil is good is sent, and the returning device 70 that returns the soil to the first belt conveyor 10A is not driven. That is, the rotating member 73 forming the returning device 70 is normally lifted upward so as not to interfere with the conveyance of the soil S on the third belt conveyor 10C. Therefore, the soil S with good reforming that is conveyed is not returned to the first belt conveyor 10A by the returning device 70, but is carried out to the rotary sieving machine RM and finally subjected to secondary separation, and the under material is It is carried out to the fifth belt conveyor 10E, conveyed to the stock pile SP via the fifth belt conveyor 10E, and temporarily stored (step S432).

  On the other hand, when it is determined that the reforming is not good in the determination of whether the reforming is good (step S430), the soil S that has been reformed from the image processing device 60 to the first control panel 90 is poorly reformed. Is transmitted as a defective signal. The first control panel 90 transmits a drive command signal for driving the returning device 70 to the returning device 70, and the soil S that has been subjected to the reforming process by the driven returning device 70 passes through the fourth belt conveyor 10D and again the first belt. It is returned to the conveyor 10A (step S434, returning step). The returned soil S is conveyed to the batch-type soil reforming system 100, so that the series of treatments shown in FIG. 14 is performed again and re-reforming treatment (re-reforming step). As a result of the re-reforming treatment, when the reforming is determined to be good in step S430, the re-reforming treated soil is subjected to secondary sorting, and the under-material is transported to the stock pile SP and temporarily stored. (Step S432).

  As described above, according to the batch-type soil reforming method and the soil reforming method (a series of reforming treatment methods) including the batch soil reforming method according to the embodiment, reforming can be performed without causing poor mixing of the reforming agent with the soil. The soil reforming treatment can be performed while accurately setting an appropriate amount of the reforming agent according to the weight and water content of the target soil.

  It should be noted that other configurations such as other components may be combined with the configurations and the like described in the above embodiments, and the present invention is not limited to the configurations shown here. . This point can be changed without departing from the spirit of the present invention, and can be appropriately determined according to the application mode.

10A: First belt conveyor 10B: Second belt conveyor (an example of belt conveyor)
10C: 3rd belt conveyor 10D: 4th belt conveyor 10E: 5th belt conveyor 20: Hopper feeder 25: 1st detection sensor (flow switch)
26: Sensing plate 27: Second detection sensor (flow switch)
28: Sensing plate 30: Reformer 35: Weigher 40, 40A, 40B: Silo 45, 45A, 45B: Reformer measuring tank 52: Moisture meter 54: Imaging device 60: Image processing device 70: Return device 71: Frame 72: Rotating shaft 73: Rotating member 73a: Colliding surface 74: Actuator (cylinder mechanism)
75: Shoot 80: Second control panel (an example of control panel)
90: First control panel 100: Batch type soil reforming system (reforming line)
120, 120A: Upstream treatment system 140, 140A: Downstream treatment system 200, 300: Soil reforming system 604: Improvement quality judgment unit 804: Average water content ratio calculation unit 806: Reformer addition amount setting unit 904: Return device Drive control unit FP: Large sandbag UB1 to UB3: Receiving belt conveyor FB: Sorting belt conveyor S: Soil G: Gap HM: Bag breaking machine VM: Vibrating screen machine RM: Rotary screen machine SP: Stock pile

Claims (6)

A hopper feeder into which soil is added,
A reformer for mixing the soil and the modifier,
A belt conveyor that conveys the soil sent from the hopper feeder to the reformer,
A modifying agent measuring tank for measuring the addition amount of the modifying agent and adding the modified material after metering to the reformer,
In the middle position of the belt conveyor, a moisture meter for measuring the water content of the soil to be transported,
A scale for measuring the weight of the soil contained in the reformer,
And a control panel,
The measurement of the water content by the moisture meter is continuously or intermittently performed, and a plurality of measured water content data is transmitted to the control panel,
The control panel stores the soil weight for one batch,
By the control panel, when the soil weight data transmitted from the weighing scale becomes the soil weight of the one batch, the operation of the belt conveyor is stopped and the soil is carried into the reformer. Stopped,
The control panel calculates an average water content from the plurality of received water content data, sets the amount of the modifier added based on the soil weight of the one batch and the average water content, and A batch-type soil reforming system, wherein addition amount data regarding the addition amount set for a quality material measuring tank is transmitted. The hopper feeder is provided with a first detection sensor that detects that the soil for one batch or more has been added,
A first detection signal when the first detection sensor detects the input of the soil for one batch or more is to be transmitted to the control panel,
When the control panel receives the first detection signal, the control panel drives the hopper feeder to send out the soil, and the belt conveyor is driven to convey the soil to the reformer. The batch type soil reforming system according to claim 1, wherein the reformer is driven.   The batch type soil reforming system according to claim 2, wherein driving is started in the order of the reformer, the belt conveyor, and the hopper feeder. The moisture meter is located below the belt conveyor,
At a position corresponding to the moisture meter above the belt conveyor, a second detection sensor for detecting that the soil has passed is installed,
The second detection signal when the second detection sensor detects the passage of the soil is transmitted to the control panel,
4. The control panel uses only the water content data received at the same time when the second detection signal is received to be used for the calculation of the average water content. A batch type soil reforming system according to the item 1. The hopper feeder, the belt conveyor, the reforming material measuring tank and the reformer, two reforming lines configured by,
The batch type soil reforming system according to any one of claims 1 to 4, wherein the soil reforming process is alternately performed in each reforming line by the control panel. Adding soil to the hopper feeder, of the soil sent out from the hopper feeder to the belt conveyor, carry one batch of soil into the reformer, and mix the soil and the reformer in the reformer , A batch-type soil modification method,
In the middle position of the belt conveyor, continuously or intermittently measure the water content of the soil to be transported, a water content measurement step,
An average water content calculation step of calculating an average water content from the measured plurality of water content,
Measuring the weight of the soil housed in the reformer, carrying in soil of one batch of soil weight into the reformer, a soil loading step,
Based on the soil weight and the average water content of the one batch, to set the addition amount of the modifier, a modifier addition amount setting step,
A batch type soil reforming, comprising: a soil reforming step of introducing the set amount of the reforming agent into the reforming machine to mix the soil and the reforming agent. Method.

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