Base material processing system

Abstract

To provide a base material processing system capable of efficiently spraying a base material produced by improving surface soil or soil to be plowed which include, for example, seeds in the soil to allow tree planting method construction using the base material to be performed efficiently.SOLUTION: A base material processing system (100) of the present invention used for a construction site including a steep slop comprises a supply mechanism (10) securely supplying a base material (A) to a spray machine (1), wherein the supply mechanism (10) has a hopper (2) supplying a material to the spray machine (1), and a feed bowl (3) below the hopper (2). A plurality of compressed air injection nozzles (4) are arranged in an inner wall of the hopper (2) in a circumferential direction and have a function to destroy a bridge of the base material (A) formed on an outlet (2A) of the hopper with compressed air. Also, in addition to the supply mechanism (10), a tire shovel (30) provided with a spray device (20) having a compaction mechanism (22) and a base material amount monitoring device (40) may be provided according to construction sites of a slop, a gentle slop, and a flat ground.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a method for revegetating flat areas and gently sloping embankments in construction work. [Background technology]

[0002] From the perspective of ecosystem conservation and effective use of on-site generated materials, in greening methods for flat land and gently sloping embankments in construction work, for example, when carrying out work in national parks and remote islands where rare species exist, it is desirable to utilize topsoil (soil removed) (soil from the surface layer 30 to 50 cm collected with heavy machinery, etc.) that contains buried seeds. In addition, from the perspective of preserving the water quality of rivers and oceans (for example, preventing the inflow of muddy water), early greening of construction sites and improvement of erosion resistance are required. When the use of plowed soil is required, it may be necessary to use materials with properties that make it difficult to apply conventional techniques (such as materials that contain a lot of gravel or materials with high clay content). In addition, purchased seeds (such as commonly available foreign seeds) cannot be used, making it difficult to achieve early greening or improve erosion resistance, and requiring measures other than conventional techniques. Furthermore, even if the slope greening method is carried out using removed soil, the amount of work that can be done per day is often less than when existing technologies are used, and for this reason, it is not suitable for relatively large-scale construction sites such as land development work. Furthermore, when using base materials made by improving topsoil (plowed soil) containing buried soil seeds with coagulants or water-absorbent polymers, etc., there is a demand to improve the construction efficiency, but the reality is that no technology that can meet this demand has been proposed.

[0003] Here, a soil material for use as a base material for slope greening that includes at least one of kenaf, sugarcane, and hemp has been proposed (see Patent Document 1), but this is not intended to improve the efficiency of construction. In addition, a slope spraying material made from waste muddy water or industrial waste sludge and a spraying method using the same have been proposed (see Patent Document 2), but there is no disclosure about spraying a base material. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4255251 [Patent Document 2] Patent No. 3914007 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been proposed in consideration of the problems of the conventional technology described above, and aims to provide a base material processing system that can efficiently spread base material (for example, base material made by improving topsoil containing buried seeds or tilled soil with a flocculant, absorbent polymer, etc.) and can efficiently carry out greening work using such base material. [Means for solving the problem]

[0006] The substrate processing system (100) of the present invention comprises: In a base material treatment system used in greening methods (for example, using base materials made by improving topsoil containing buried seeds or plowing soil with coagulants or water-absorbent polymers), The construction site includes a steep slope, and the construction site has a supply mechanism (10) for reliably supplying the base material (A) to the spraying machine (1). The spray machine (1) is a rotary spray machine, The supply mechanism (10) has a hopper (2) for feeding a material to the spray machine (1) and a feed bowl (3) arranged below the hopper (2), The inner wall of the hopper (2) is provided with a plurality of compressed air injection nozzles (4) arranged at equal intervals in the circumferential direction. The compressed air injection nozzles (4) inject compressed air downward into the hopper (2), and when a bridge is formed by the base material (A) at the hopper outlet (2A), the compressed air has the function of breaking down (or loosening) the bridge. Here, the direction of compressed air injection from the compressed air injection nozzle (4) may be directly downward, or may have both a radially inward component and a radially downward component. The multiple compressed air injection nozzles (4) are connected to an annular hose or piping (5), which communicates with an air supply source (7) via an air flow path (6). An on-off valve (8) is provided in the air flow path (6). The on-off valve (8) is controlled to open and close by a control device (CU). It is desirable that the timing of injecting compressed air from the injection nozzle (4) in the hopper (2) be synchronized with the timing of dropping the material from the hopper (2) into the feed bowl (3). Alternatively, the plurality of compressed air injection nozzles (4) are connected to an annular hose or pipe (5), the annular hose or pipe (5) is in communication with an air supply source (7) via an air flow path (6), an on-off valve (8) is provided in the air flow path (6), and the on-off valve (8) is controlled to open and close by a control device (CU). It is desirable that the timing of injecting compressed air from the injection nozzles (4) in the hopper be synchronized with the drive of a belt conveyor (9) that supplies material to the hopper (2).

[0007] The substrate processing system (100) of the present invention further comprises: In a base material treatment system used in greening methods (for example, using base materials made by improving topsoil containing buried seeds or plowing soil with coagulants or water-absorbent polymers), The construction site includes a gentle slope, and is equipped with a spraying device (20) for spraying a base material (A); The spreading device (20) includes an endless track (21), and a compaction mechanism (22: a base material spreading device, a roller or a tire) is provided behind the endless track (21) in the traveling direction (F), It is characterized by having a scattering mechanism (23) that scatters the base material (A) forward in the traveling direction (F). Here, the spraying device (20) preferably has a mechanism for moving the compaction mechanism (22) up and down.

[0008] The substrate processing system (100) of the present invention comprises: In a base material treatment system used in greening methods (for example, using base materials made by improving topsoil containing buried seeds or plowing soil with coagulants or water-absorbent polymers), The construction site includes a flat land, and is equipped with a tire shovel (30) capable of spreading a base material (A), The bucket (31) of the tire shovel (30) is characterized by being provided with a spreading mechanism (32: 32A, 32B, 32C) for spreading the base material (A) and a base material amount monitoring device (40) for measuring the amount of the base material (A) in the bucket (31).

[0009] The sprinkling mechanism (32A) preferably includes an agitating blade (33A) or a screw (33B) provided in the bucket (31), and an opening / closing mechanism (34A) provided at the bottom of the bucket (31). Alternatively, the spreading mechanism (32B) preferably has an agitating blade or screw (33B) provided in the bucket (31), a plurality of rotating disks (35) provided below the agitating blade or screw (33B), and an opening (31A) formed in the front part of the bucket (31) corresponding to the position where the base material (A) is spread by the rotating disks (35) in the forward direction of the tire shovel (30). Alternatively, the spreading mechanism (32C) preferably has an agitating blade or screw (33C) provided in the bucket (31), a conveyor mechanism (36) provided below the agitating blade or screw (33C) and driven in the forward direction of the tire shovel (30), and an opening (31A) formed in the front part of the bucket (31) corresponding to the position where the base material (A) is spread by the conveyor mechanism (36) in the forward direction of the tire shovel (30).

[0010] The base material amount monitoring device (40) provided in the bucket (31) of the tire shovel (30) has a device for irradiating laser light and an imaging mechanism for taking an image of the irradiated laser light, and is connected to a control device (CU) that determines the amount of base material (A); The control device (CU) A function of recognizing the entire base material in the bucket (31) as an image by using a laser beam; A function of analyzing the image and calculating the amount of base material (A) in the bucket (31) from the fluctuation of the image; It is preferable that the bucket (31) has a function of determining in real time whether the amount of base material (A) in the bucket (31) has become less than a predetermined value. The control device (CU) preferably has a function of measuring the amount of the base material (A) reduced by spraying and calculating the rate of reduction of the base material. Furthermore, it is preferable that the control device (CU) has a function of calculating the thickness dimension of the spread base material (A) based on the amount of base material (A) reduced by spreading and the moving speed of the tire shovel (30).

[0011] The substrate processing system (100) of the present invention comprises: In a base material treatment system used in greening methods (for example, using base materials made by improving topsoil containing buried seeds or plowing soil with coagulants or water-absorbent polymers), The construction site has slopes, gentle slopes and flat land. The system is characterized by comprising the supply mechanism (10: the supply mechanism according to any one of claims 1 to 3), the spraying device (20: the spraying device according to claim 4), and the tire shovel (30: the tire shovel according to any one of claims 5 to 8).

[0012] In the present invention, in the method for producing a base material (A) used in the base material processing system, For normal mixes (standard mixes for both "clay soil type" and "sandy soil type" in Table 1: mixes for sandy soil type with an adjusted moisture content of 20% or mixes for clay soil type with an adjusted moisture content close to the liquid limit) 150 liters / 1m 3 ~500 litres / 1m 3 The method is characterized in that water is added. Here, the amount of water added is, for example, 300 liters / 1m 3 is preferred. Effect of the Invention

[0013] According to the present invention having the above-mentioned configuration, there is provided a supply mechanism (10) for reliably supplying the base material (A) to the spray machine (1), and a plurality of compressed air injection nozzles (4) are provided on the inner wall of the hopper (2). If the base material (A) forms a bridge at the hopper outlet (2A), the function of breaking down (or loosening) the bridge with compressed air can be achieved. This makes it possible to prevent a bridge from being formed in the hopper (2) and preventing the base material (A) from being supplied to the spray machine (1) due to the bridge. Therefore, even if the base material (A) used is topsoil containing buried seeds or tilled soil improved with a flocculant, water-absorbent polymer, or the like, the revegetation method can be carried out smoothly and work efficiency can be improved.

[0014] According to the present invention, the spreading device (20) includes an endless track (21), and a compaction mechanism (22: base material spreading device, roller or tire) is provided behind the endless track (21) in the direction of travel (F), and a spreading mechanism (23) is provided for spreading the base material forward in the direction of travel (F), so that the spread base material (A) is reliably compacted by the compaction mechanism (22). Therefore, the spread base material (A) is prevented from being washed away by rainfall or the like. Here, even if tires are used as the compaction mechanism (22), by arranging three or more tires in the direction of the tire's rotation axis and / or running the tires multiple times over the area where the base material (A) has been scattered, even if the compaction mechanism (22) is a tire, the scattered base material (A) is securely compacted (compacted) by the tires, and is prevented from being washed away due to rainfall, etc.

[0015] Furthermore, according to the present invention, the bucket (31) of the tire shovel (30) is provided with a spreading mechanism (32) for spreading the base material (A), so that the accumulated base material (A) can be spread by a single tire shovel (30: heavy machinery). This improves the efficiency of construction and reduces construction costs. In addition, the bucket (31) of the tire shovel (30) is provided with a base material amount monitoring device (40) for measuring the amount of base material (A) in the bucket (31), so that the amount of base material (A) in the bucket (31) can be determined and it can be judged in real time whether the amount of base material (A) in the bucket (31) has become less than a predetermined value. Then, when the amount of base material (A) in the bucket (31) becomes low, the tire shovel (30) can be moved to a collection location for the base material (A) to immediately replenish the base material (A). It is also possible to constantly measure the amount of base material (A) that has been reduced by spraying, and to check the rate at which the base material is being reduced. This makes it possible to constantly adjust the amount of base material (A) sprayed within an appropriate range by controlling the spraying mechanism (32) to reduce the amount of base material (A) sprayed if the rate at which the base material is being reduced is fast, and to increase the amount of base material (A) sprayed if the rate at which the base material is being reduced is slow. Furthermore, the thickness of the spread base material (A) can be calculated in real time based on the amount of base material (A) reduced by spreading and the moving speed of the tire shovel (30). This makes it possible to appropriately control the thickness of the base material (A) by increasing the amount of base material (A) spread when the thickness of the base material (A) is smaller than a predetermined range, and decreasing the amount of base material (A) spread when the thickness is larger. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is an explanatory diagram showing an overview of an embodiment of the present invention. [Diagram 2] FIG. 4 is an explanatory diagram of a supply mechanism in the embodiment. [Diagram 3] 4 is an explanatory diagram of an air supply system that supplies air to a compressed air ejection nozzle in the supply mechanism. FIG. [Figure 4] 5 is an explanatory diagram regarding the direction in which compressed air is ejected from a compressed air ejection nozzle. FIG. [Diagram 5] 6 is a flowchart showing control of the timing of ejecting compressed air from the compressed air ejection nozzle. [Figure 6]6 is a flowchart showing control of the timing of ejecting compressed air from the compressed air ejection nozzle, which is different from control shown in FIG. 5. [Figure 7] FIG. 2 is an explanatory diagram of a spraying device according to an embodiment. [Figure 8] FIG. 8 is a plan view of the compaction mechanism in the spraying device of FIG. [Figure 9] 1 is a perspective view showing an overview of a tire excavator according to an embodiment. FIG. [Figure 10] FIG. 1 is an explanatory diagram showing an example of a spreading mechanism in a bucket of a tire shovel. [Figure 11] FIG. 11 is an explanatory plan view showing an example of a spreading mechanism in a bucket of a tire shovel that is different from that shown in FIG. 10 . [Figure 12] 12 is an explanatory diagram showing a cross section AA in FIG. 11. [Figure 13] 12 is an explanatory diagram showing a cross section BB in FIG. 11. [Figure 14] FIG. 14 is an explanatory cross-sectional view showing an example of a spreading mechanism in a bucket of a tire excavator that is different from that shown in FIGS. [Figure 15] 11 is an explanatory diagram showing an example of a combination of a base material amount monitoring device in a bucket of a tire shovel and the spreading mechanism of FIG. 10. FIG. [Figure 16] FIG. 16 is a functional block diagram of the substrate material amount monitoring device in FIG. 15. [Figure 17] 16 is a flow chart of control for monitoring the amount of substrate material by the substrate material amount monitoring device in FIG. 15. [Figure 18] 16 is a flowchart showing control regarding the reduction rate (consumption rate) of the amount of base material by the base material amount monitoring device in FIG. 15. [Figure 19] 16 is a flowchart showing control regarding the thickness of the base material in the area where the base material is sprayed by the base material amount monitoring device in FIG. 15. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The base material treatment system of the present invention, generally indicated by the reference numeral 100 in Fig. 1, is a system for carrying out a revegetation method that utilizes a base material made by improving topsoil containing buried seeds or plowed soil with a flocculant, water-absorbent polymer, etc. The system 100 can be applied even when the construction site includes a steep slope, and has a supply mechanism 10 for reliably supplying the base material A to the sprayer 1. Here, the base material processing system 100 can be applied to a construction site including a gentle slope, and has a spreading device 20 that spreads the base material A. The spreading device 20 has an endless track 21 and a compaction mechanism 22 (a base material spreading device, a roller or a tire) behind the endless track 21 in the traveling direction F. Furthermore, the base material processing system 100 is also applicable to construction sites that include flat land, and is equipped with a spreading mechanism 32 (see FIG. 9 onwards) on a bucket 31. The spreading mechanism 32 has a tire shovel 30 that can spread base material A. The tire shovel 30 is also used to feed base material A into the material storage hopper 11, but the base material processing system 100 and the revegetation method carried out by it are also applied to spreading base material A on flat land, as will be explained in FIG. 9 onwards. The base material processing system 100 can be applied to construction sites that have a mixture of slopes, gentle slopes, and flat land, and has a supply mechanism 10 to reliably supply base material A to the spray machine 1, a spraying device 20 that sprays and compacts the base material A, and a tire shovel 30 that can spray the base material A.

[0018] In Fig. 1, base material (on-site generated soil) A is stored in material storage hopper 11. Base material A is transferred to a weighing device and agitator (not shown), and is agitated and liquefied by the agitator. The liquefied base material A is temporarily stored in material storage hopper 12, and is supplied from said material storage hopper 12 to (hopper 2 of) the sprayer 1 via belt conveyor 9 in accordance with the amount to be sprayed onto the construction slope S. The base material A supplied to the spray machine 1 is transferred from the spray machine 1 to a worker W via a material hose 13, and is sprayed onto the construction slope S from a spray nozzle (not explicitly shown) held by the worker A. In Fig. 1, a supply mechanism 10 is provided to supply a base material A conveyed from a belt conveyor 9 to a spray machine 1. The supply mechanism 10 has a hopper 2 and a feed bowl 3. The supply mechanism 10 will be described later with reference to Figs. 2 to 7. The spraying device 20 for spraying and compacting the base material A will be described later with reference to Figures 7 and 8. The tire shovel 30 having the function of spraying the base material A and its control will be described later with reference to Figures 9 to 19.

[0019] The supply mechanism 10 that supplies the base material A to the spray machine 1 will be described with reference to FIGS. In the illustrated embodiment, the spray machine 1 is a rotary type spray machine. In Fig. 2, the supply mechanism 10 has a hopper 2 that feeds the base material A into the spray machine 1, and a feed bowl 3 arranged below the hopper 2. Although not explicitly shown, the feed bowl 3 is a disk-shaped member that is partitioned into multiple compartments in its circumferential direction, and as the feed bowl 3 rotates in the circumferential direction, a predetermined amount of the base material A within the partitions is supplied into the inside of the spray machine 1 (Fig. 1). In Fig. 2, substrate material A transported by belt conveyor 9 is fed into hopper 2 and supplied into each partition of feed bowl 3 through openable and closable opening 2A (hopper outlet) at the bottom of hopper 2. A predetermined amount of substrate material A is then fed into each partition of feed bowl 3. Opening 2A is provided directly below an area where bridges C are likely to occur. The cross-sectional area of ​​the opening 2A corresponds to the size of each of the multiple compartments divided in the circumferential direction of the feed bowl 3, and the cross-sectional area of ​​the opening 2A varies depending on the model of the rotary spray machine.

[0020] If the opening 2A (hopper outlet) at the bottom of the hopper 2 is narrow (the cross-sectional area is small), a bridge of the base material A will occur at the opening 2A, as shown by symbol C in Figure 2, resulting in the inconvenience of a sufficient amount of base material A not being supplied to the spray machine 1. 3 and 4, in the illustrated embodiment, a plurality of (e.g., eight) compressed air injection nozzles 4 are provided at equal intervals in the circumferential direction on the inner wall surface of the hopper 2 in the supply mechanism 10. In Fig. 2, the region where the compressed air injection nozzles 4 are provided in the circumferential direction is indicated by the symbol 2B. The compressed air injection nozzle 4 injects compressed air downward (towards the opening 2A) of the hopper 2 to agitate (loosen) the base material A and prevent a bridge from being formed at the hopper outlet 2A. Even if a bridge is formed at the opening 2A, the formed bridge is broken (loosened) by the compressed air injected from the compressed air injection nozzle 4. In Fig. 4, the injection direction of the compressed air injected from the compressed air injection nozzle 4 is indicated by an arrow A4. Depending on the base material A supplied to the spray machine 1, there may be a material for which a bridge is unlikely to form at the opening 2A. Even in such a case, the filling speed of the base material A increases by spraying compressed air, and therefore the filling efficiency of the base material A improves. As described above, the compressed air injection nozzles 4 are provided at equal intervals in the circumferential direction of the inner wall surface of the hopper 2, and eight compressed air injection nozzles 4 are provided at equal intervals in the circumferential direction in Figures 2 and 3, but the number of compressed air injection nozzles 4 is not limited to "eight." If the nozzles are arranged at equal intervals in the circumferential direction, the number of nozzles is not limited to eight. However, a minimum of two nozzles is required.

[0021] Here, the direction of the compressed air jet from the compressed air jet nozzle 4 does not need to be directly downward. In the illustrated embodiment, the jet direction of the compressed air has both a downward component and a radially inward component, which is not clearly illustrated. Because it has a downward component and a radially inward component, the jet of compressed air can loosen the base material A and cause it to drop into the feed bowl 3, increasing the filling speed. However, it is also possible for the compressed air to be ejected in a downward direction only. In the illustrated embodiment, even if a bridge of the base material A is formed at the hopper outlet 2A, the bridge can be broken (or loosened) by injecting compressed air from the air injection nozzle 4. This makes it possible to prevent a situation in which the base material A cannot be supplied to the spray machine 1 due to the formation of a bridge in the hopper 2, improving work efficiency.

[0022] 3, a compressed air injection nozzle 4 is connected to an annular hose or pipe 5, and the annular hose 5 communicates with an air supply source 7 via an air flow path 6. An on-off valve 8 is provided in the air flow path 6, and the on-off valve 8 is controlled to open and close by a control signal transmitted from a control device CU via a signal transmission line SL1. The opening and closing control of the on-off valve 8, that is, the control of injecting compressed air from the compressed air injection nozzle 4 will be described.

[0023] In the embodiment of FIGS. 2 to 4, the timing of the compressed air injection into the hopper 2 is synchronized with the timing of the base material A (material) being dropped from the hopper 2 into the feed bowl 3. 2, a signal transmission line SL2 is provided from the control device CU to the hopper 2 (opening 2A) for transmitting a control signal to drop the substrate material A into the feed bowl 3. Here, the substrate material A is dropped from the hopper 2 into the feed bowl 3 by opening the opening 2A (hopper outlet) at the bottom of the hopper 2. At the same time that the substrate material A is dropped from the hopper 2 into the feed bowl 3, an open signal is transmitted to the on-off valve 8, and compressed air is controlled to be sprayed from the compressed air spray nozzle 4.

[0024] The control performed by the control unit CU will be described with reference to the flowchart of FIG. 5, in step S1, it is determined whether or not a control signal for dropping the base material A from the hopper 2 to the feed bowl 3 has been transmitted. As described above, the control signal for dropping the base material opens the opening 2A (hopper outlet) at the bottom of the hopper 2. If the control signal is transmitted as a result of the determination in step S1 ("Yes" in step S1), the process proceeds to step S2; if the control signal is not transmitted ("No" in step S1), the process proceeds to step S3. In step S2 (when a control signal for dropping the substrate material A into the feed bowl 3 is sent from the hopper 2), an open signal is sent to the on-off valve 8. By opening the on-off valve 8, compressed air from the air supply source 7 is sprayed downward from the hopper 2 through the eight air spray nozzles 4 arranged in the hopper 2. Then, the process returns to step S1. On the other hand, in step S3 (when no control signal for dropping the base material A from the hopper 2 to the feed bowl 3 is transmitted), the on-off valve 8 is kept closed. If the on-off valve 8 is already open, it is closed. Then, the process returns to step S1. In step S4, it is determined whether or not to end the control. If the result of the determination in step S4 is that the control is to be ended (step S4 is "Yes"), the process proceeds to "END", and if the control is not to be ended (step S4 is "No"), the process returns to step S1. In FIG. 5, step S4 is executed immediately after step S2, but it may be executed immediately after step S3.

[0025] In the embodiment of FIGS. 2 to 4, the timing of the compressed air injection into the hopper 2 can be synchronized with the driving of the belt conveyor 9 that supplies the base material A (material) to the hopper 2. In FIG. 2, a control signal for controlling the driving of the belt conveyor 9 is transmitted (sent) from the control device CU to the belt conveyor 9 via a signal transmission line SL3. In this case, at the same time as the belt conveyor 9 is driven, an open signal for the on-off valve 8 is sent via the signal transmission line SL1, so that the air injection nozzle 4 is controlled to inject compressed air.

[0026] With reference to the flowchart of FIG. 6, the control for synchronizing the timing of compressed air injection with the driving of the belt conveyor 9 will be described. In FIG. 6, in step S11, it is determined whether a control signal for driving the belt conveyor 9 has been transmitted. As a result of the determination in step S11, if the control signal has been transmitted (step S11 is "Yes"), the process proceeds to step S12, and if the control signal has not been transmitted (step S11 is "No"), the process proceeds to step S13. In step S12 (when a control signal for driving the belt conveyor 9 is transmitted), an open signal is transmitted to the on-off valve 8. Then, the on-off valve 8 is opened, and compressed air from the air supply source 7 is sprayed from the air spray nozzle 4 toward the bottom of the hopper 2. On the other hand, in step S13 (when the control signal for driving the belt conveyor 9 is not transmitted), the on-off valve 8 is maintained closed. If the on-off valve 8 is open, it is immediately closed. Then, the process returns to step S11. In step S14, it is determined whether or not the control of FIG. 6 is to be ended. As a result of the determination in step S14, if the control is to be ended (step S14 is "Yes"), the process proceeds to "END", and if the control is not to be ended (step S14 is "No"), the process returns to step S11. In FIG. 6, step S14 is executed immediately after step S12, but it may be executed immediately after step S13. The supply mechanism 10 described with reference to Figs. 2 to 6 can be applied to the spreading (scattering) of the base material A on flat ground, and can also be applied to spraying onto slopes.

[0027] Next, the spraying device 20 for spraying the base material A will be described with reference to Figs. Base material A can also be spread using an existing compost spreader. However, if base material A is spread using an existing compost spreader, there is a possibility that the spread base material A will be washed away by rainfall, etc. In order to prevent such a runoff of base material A, it is necessary to compact the spread base material A. However, when compacting the base material A using a machine different from the machine that spreads it, using two types of machines results in various costs and increases the labor. In contrast, the base material processing system 100 according to the illustrated embodiment includes a spreading device 20 having a compaction mechanism 22 (base material spreading device) as shown in FIG. In Figure 7, the spraying device 20 has an endless track 21, and a compaction mechanism 22 is provided on the rear side in the traveling direction (the direction of arrow F in Figure 7) of the endless track 21. The compaction mechanism 22 has rollers or tires 22A, and compacts the sprayed base material A by the rollers or tires 22A.

[0028] 8, which shows the compaction mechanism 22, the towing frame 22B constituting the compaction mechanism 22 is connected to the main body of the spraying device 20 via a connecting part 22C provided at the front end part of the towing frame 22B. The rollers or tires 22A of the compaction mechanism 22 are attached to the underside of the towing frame 22B. Although not clearly shown in Figure 7, the spraying device 20 has a spraying mechanism 23, which has the function of spraying base material A forward in the direction of travel of the spraying device 20 (in the direction of arrow F).

[0029] In Figures 7 and 8, there are no particular limitations on the mechanism (compaction mechanism) such as rollers or tires in the spraying device 20 as long as it can compact the base material A and has a structure that does not hinder the travel of the spraying device 20. If a roller is used, the weight of the roller will compact all of the scattered base material A over the entire area in the direction perpendicular to the paper surface of FIG. 7 in one pass. In contrast, in the case of tires, the material is compacted intermittently in the direction perpendicular to the paper surface of Fig. 7, but the entire area in the direction perpendicular to the paper surface cannot be compacted in one run. However, by running the spraying device 20 shown in Fig. 7 over the area where the base material A has been spread multiple times, the endless track 21 and the base material A spread by the tires can be compacted (compacted) entirely. Alternatively, by arranging, for example, three or more tires on one drive shaft to narrow the area between the tires, the spread (spread out) base material A can be compacted by the tires (over the entire area in the direction perpendicular to the paper surface of Fig. 7) even if the number of runs of the spraying device 20 over the spread base material A is small.

[0030] In FIG. 7, rollers or tires 22A are provided at the rear of the endless track 21 in the direction of travel (opposite the direction of arrow F). As described above, the spraying mechanism 23 sprays the base material A forward in the direction of travel of the spraying device 20 (in the direction of arrow F). Therefore, if the roller or tire 22A is positioned in front of the spraying device 20, the base material A will be sprayed in the area where the roller or tire 22A is positioned, and there is a risk that the base material A will not be compacted by the roller or tire 22A. Therefore, the rollers or tires 22A are provided behind, not in front of, the caterpillar track 21. In other words, as shown in Fig. 7, the compaction mechanism 22 such as rollers or tires is disposed behind the direction of travel of the spraying device 20, so that the sprayed base material A can be reliably compacted.

[0031] Here, a known structure can be applied as the structure for attaching the compaction mechanism 22 (roller or tire) to the spreading device 20. For example, a towing device used when towing other objects with a vehicle can be applied. In addition, although not clearly shown, the spraying device 20 of the illustrated embodiment has a mechanism for moving the compaction mechanism 22 up and down. When base material A has not been spread and there is no need to compact it, the compaction mechanism 22 is raised to avoid contact with the road surface, improving the running performance of the spraying device 20. When base material A has been spread and needs to be compacted, the compaction mechanism 22 is lowered to the road surface and the spraying device 20 runs, thereby compacting the spread base material A. An existing mechanism can be used as the mechanism (not clearly shown) for moving the compaction mechanism 22 up and down. The spraying device 20 shown in Figs. 7 and 8 can be used at a construction site including a gentle slope, as long as the spraying device B can travel therethrough.

[0032] Next, a tire shovel 30 capable of scattering the base material A will be described with reference to Figs. In conventional technology, when spreading base material A on flat ground, the base material A is collected from a collection point using a tire shovel, loaded onto a truck or hopper, and then supplied from the hopper to a spreading device, so that the base material A is spread using two types of heavy machinery: a tire shovel and a spreading device. In contrast, in the illustrated embodiment, as shown in Figures 9 to 19, the bucket 31 of the tire shovel 30 has a spreading function (scattering function), and the accumulated base material A can be spread by only one heavy machine (i.e., the tire shovel 30). As a result, the efficiency of construction is improved and costs can be reduced.

[0033] In Fig. 9, a tire excavator 30 is provided with a bucket 31 in front of a main body 30A. The bucket 31 is provided with a spreading mechanism 32 for spreading base material A, and a base material amount monitoring device 40 for measuring the amount of base material A in the bucket 31. The base material amount monitoring device 40 is shown comprehensively in Fig. 9, and its specific configuration is shown in Figs. 15 to 19. The bucket 31 of the tire shovel 30 allows the base material A to be loaded or moved from a collection point. When the base material A stored in the bucket 31 needs to be spread, a spreading mechanism 32 is operated. The tire shovel 30 can be applied to construction sites that include flat land. An example of the spreading mechanism 32 of the bucket 31 will be described with reference to FIG.

[0034] In Figure 10, which shows only the bucket 31 of the tire shovel 30 shown in Figure 9, a spraying mechanism 32A is provided within the bucket 31, and the spraying mechanism 32A has an agitating blade 33A and an opening / closing mechanism 34A, and the opening / closing mechanism 34A is provided at a position corresponding to the agitating blade 33A at the bottom of the bucket 31. Although not shown in Fig. 10, the opening / closing mechanism 34A is composed of an opening and a shutter member that opens or closes the opening. For the sake of simplicity and clarity, Fig. 10 also shows the blind spot of the opening / closing mechanism 34 due to the stirring blade 33A. The agitating blade 33A and the opening / closing mechanism 34A are both hydraulically driven, but may be driven by other fluid pressure mechanisms, electric motors, etc. In Fig. 10, reference numeral 37 denotes a drive device for the agitating blade 33A. When the base material A is filled into the bucket 31 and spread, the opening of the opening / closing mechanism 34A is opened by a predetermined area while the tire shovel 30 is travelling. At that time, the bucket 31 is swung up and down and left and right as necessary. When the tire shovel 30 is traveling to spread the base material A, if the mixing blade 33A is rotated as necessary, even if the base material A forms a bridge directly above the opening of the opening / closing mechanism 34A, the bridge is broken (loosened) by the rotation of the mixing blade 33A, and the bridge does not interfere with the spreading of the base material A.

[0035] The amount of base material A spread by the spreading mechanism 32A of the bucket 31 (the amount of base material A spread per unit time) can be adjusted by controlling the stirring blade 33A and the opening / closing mechanism 34A. That is, when the rotation speed of the agitation blade 33A is high, the amount of the mixture sprinkled (amount of the mixture spread) increases, and when the rotation speed of the agitation blade 33A is low, the amount of the mixture sprinkled (amount of the mixture spread) decreases. Furthermore, if the horizontal cross-sectional area of ​​the opening of the opening / closing mechanism 34A at the bottom of the bucket 31 is large, the amount of spraying (spraying) increases, and if it is small, the amount of spraying (spraying) decreases. This adjusts the amount of spraying.

[0036] A sprinkling mechanism 32B different from that shown in FIG. 10 will be described with reference to FIGS. 11 to 13, the spreading mechanism 32B provided in the bucket 31 of the tire shovel 30 (see FIG. 9) has a screw 33B (or an agitating blade), a plurality of rotating disks 35 (FIG. 12) provided below the screw 33B, and an opening 31A (FIGS. 12 and 13) for spreading the base material formed in the front part of the bucket 31 (the forward direction side of the tire shovel 30: the side of the arrow F in FIG. 12). 11 and 12, a partition member 31B is provided in the bucket 31, and a screw 33B is disposed above the partition member 31B. In Fig. 12, an opening 31C for allowing a base material A to pass through is formed in the partition member 31B at a position directly below the screw 33B. Two or more rotating disks 35 are arranged in a direction perpendicular to the paper surface in Fig. 12. In Fig. 12, they are arranged at the bottom of bucket 31 below partition member 31B. Blades 35A are provided on the upper part of rotating disk 35, and when rotating disk 35 rotates, blades 35A also rotate, scattering base material A toward the viewer in a direction perpendicular to the paper surface in Fig. 12. The rotation direction of rotating disk 35 is set in a direction that moves base material A toward opening 31A for scattering base material (the forward direction F of tire shovel 30) described later. 13 is located at the front of the bucket 31, where the base material A is midway dispersed in the forward direction of the bucket 31 (tire shovel 30) as the rotating disk 35 rotates. 12, the ground contact surface when scooping up the base material A and storing it in the bucket 31 is indicated by the symbol FG. At that time, in order to prevent the vicinity of the bottom where the rotating disk 35 is placed from touching the ground, a recessed portion 31D is formed in the front portion of the bucket 31 (the left end portion in FIG. 12).

[0037] In the spraying mechanism 32B shown in Figs. 11 to 13, the screw 33B (agitating blade) and the rotary disk 35 are both driven hydraulically, for example, but may be driven by other fluid pressure mechanisms, electric motors, or the like. When filling the bucket 31 with base material A and scattering the filled base material A, the screw 33B (mixing blade) is rotated, the rotating disk 35 is rotated, and the tire shovel 30 is moved while swinging the bucket 31 up and down and left and right as necessary. The base material A put into the bucket 31 passes through the screw 33B, and moves to the opening 31A for spreading the base material by the rotation of the rotary disk 35, and is spread to the construction site from the opening 31A. At that time, the base material A is prevented from forming a bridge directly above the opening 31C by rotating the screw 33B (mixing blade). In the spraying mechanism 32B of Figures 11 to 13, the spraying amount of base material A (the amount of base material A sprayed per unit time) can be adjusted by controlling the rotation speed of the screw 33B (agitation blade) and / or the rotation speed of the rotating disk 35.

[0038] FIG. 14 shows yet another dispersing mechanism 32C. The spraying mechanism 32C shown in Figure 14 is provided with a conveyor mechanism 36 instead of the rotating disk 35 in the spraying mechanism 32B of Figures 11 to 13. The other configuration of the spraying mechanism 32C is similar to that of the spraying mechanism 32B of Figures 11 to 13. In the following explanation of the spraying mechanism 32C, the conveyor mechanism 36 (Figure 14) will be mainly explained. 14, the spreading mechanism 32C has a screw 33C, a conveyor mechanism 36, and an opening 31A. The opening 31A is formed in the front part of the bucket 31 (on the side of the traveling direction F of the tire shovel 30), and the base material A is spread through the opening 31A. The screw 33C has a similar configuration to the screw 33B in FIGS. 10 to 12, and performs a similar function. The conveyor mechanism 36 is provided below the screw 33C and at the bottom of the bucket 31. The conveyor mechanism 36 drives in the forward direction F of the tire shovel 30, and as the conveyor mechanism 36 drives, the base material A input from the screw 33C side moves to the base material scattering opening 31A side (the forward direction F side of the tire shovel 30). The opening 31A for spreading the base material is formed corresponding to the position where the base material A is spread, and is formed at a position corresponding to the area where the conveyor mechanism 36 is driven and the base material A moves in the forward direction F within the bucket 31. In the spreading mechanism 32C, a recess 31D is formed in the front part of the bucket 31 (the left end part in Figure 14) to prevent the bottom area where the conveyor mechanism 36 is located from touching the ground when the bucket 31 scoops up the base material A.

[0039] When filling the bucket 31 with base material A and scattering the filled base material A, the screw 33C (mixing blade) is rotated, the conveyor mechanism 36 is driven, and the tire shovel 30 is moved while swinging the bucket 31 up and down and left and right as necessary. The base material A put into the bucket 31 passes through the screw 33C, is moved by the conveyor mechanism 36 to the opening 31A side, and is sprayed from the opening 31A. By rotating the screw 33C (mixing blade) when spraying the base material A, the base material A is prevented from forming a bridge. In the spraying mechanism 32C of Figure 14, the spraying amount of base material A (the amount of base material A sprayed per unit time) can be adjusted by controlling the rotation speed of the screw 33C (agitating blade) and / or the driving speed of the conveyor mechanism 36. Here, in order to scatter (disperse) the base material A over a wide area, it is better to discharge (jump or scatter) the base material A in front of the bucket 31. Moreover, according to the scattering mechanisms 32B and 32C of Figs. 11 to 14, it is possible to scatter the material over a wide area, thereby shortening the travel distance of the tire excavator 30.

[0040] An example in which the scattering mechanism 32A of FIG. 10 is combined with a base material amount monitoring device 40 (FIG. 9) and applied to the bucket 31 of a tire excavator 30 will be described with reference to FIGS. 15 to 19. 15, a bucket 31 of a tire shovel 30 (not shown in FIG. 15) is provided with a base material amount monitoring device 40 in addition to a scattering mechanism 32A, as shown in FIG. 15, the base material quantity monitoring device 40 is configured as a device that combines a device that irradiates the entire area inside the bucket 31 with a laser light L and an imaging mechanism that captures an image of the irradiated laser light L. The base material quantity monitoring device 40 is informationally connected via a signal transmission line SL4 to a control device CU that determines the amount of base material A. Note that the device that irradiates the laser light L and the imaging mechanism for the laser light L are omitted from the illustration. Here, the control device CU can be configured as the same information processing device as the control device CU in FIG. 2, or may be a control device different from the control device CU shown in FIG.

[0041] In Figure 15, the control device CU acquires image data captured by an imaging mechanism (not shown) using laser light irradiated from the base material quantity monitoring device 40, recognizes the entire base material in the bucket 31 as an image captured by the laser light L, analyzes the image, calculates the amount of base material A in the bucket 31 from fluctuations in the image, and has the function of determining in real time whether the amount of base material A in the bucket 31 has become less than a predetermined value (threshold value). In addition, since the amount of base material A reduced by spraying can be constantly calculated, the system has the function of calculating the rate at which the base material is reduced in real time. Furthermore, the control unit CU has the function of calculating in real time the thickness dimension of the spread base material based on the amount of base material reduced by spreading and the moving speed of the tire shovel C.

[0042] The control will be described with reference to FIGS. First, with reference to FIG. 16, the functional blocks of the control unit CU that performs the above-mentioned control will be described. In Figure 16, the control device CU has an image analysis block B1, a base material quantity calculation block B2, a base material reduction amount determination block B3, a base material reduction rate determination block B4, a base material thickness determination block B5, a base material quantity comparison block B6, a base material thickness judgment block B7, and a base material spray amount judgment block B8. The image analysis block B1 has a function of acquiring image data (by irradiating laser light) of the entire base material in the bucket 31 from an imaging mechanism (not shown) of the base material quantity monitoring device 40 via a signal transmission line SL4, and has a function of analyzing the acquired image data. The analysis results of the image data by the image analysis block B1 are transmitted to the substrate material amount calculation block B2 via a signal transmission line SL5.

[0043] The base material amount calculation block B2 has a function of calculating and determining the amount of base material A in the bucket 31 from the image variation based on the image analysis result obtained from the image analysis block B1. When calculating the amount of base material A, for example, data comparing the relationship between the image and the base material amount can be prepared in advance (stored in a memory block, not shown), and the calculation can be performed by referring to the comparison data. The amount of base material calculated and determined by the base material amount calculation block B2 is transmitted to the base material amount comparison block B6 via a signal transmission line SL6, and is also transmitted to the base material reduction amount determination block B3 via a signal transmission line SL7.

[0044] The base material amount comparison block B6 has a function of comparing the amount of base material (amount of base material in the bucket 31) acquired from the base material amount calculation block B2 with a threshold value of the amount of base material. The result of comparing the amount of the substrate material with the threshold value is transmitted from the substrate material amount comparison block B6 to the manager (operator) side via the signal transmission line SL11. The threshold value of the substrate material amount is stored in a storage device (not shown) in advance and is referred to by the substrate material amount comparison block B6. As a result of the comparison by the substrate material amount comparison block B6, for example, if the amount of substrate material is less than the threshold value, an alarm is activated. The alarm notifies the manager (worker) so that he or she can take action such as replenishing substrate materials in the bucket 31. This control will be described later with reference to the flowchart in FIG.

[0045] In Fig. 16, the base material reduction amount determination block B3 has a function of calculating and determining the base material reduction amount based on the base material amount (base material amount in the bucket 31) acquired from the base material amount calculation block B2. The calculated base material reduction amount is determined as the base material reduction amount in a predetermined interval (cycle) (i.e., the difference between the base material amount at the current time and the base material amount in the previous cycle). The substrate material reduction amount determined in the substrate material reduction amount determination block B3 is transmitted to the substrate material reduction rate determination block B4 via a signal transmission line SL8, and is also transmitted to the substrate material thickness determination block B5 via a signal transmission line SL9.

[0046] The base material reduction speed determination block B4 has a function of calculating and determining the base material reduction speed (base material consumption speed) based on the base material reduction amount (amount of reduction in the amount of base material in the bucket 31) acquired from the base material reduction amount determination block B3. This calculation and determination is performed by dividing the base material reduction amount by the time at a predetermined interval (time between cycles, unit time). In other words, base material reduction speed = base material reduction amount / unit time. The base material reduction rate determined by the base material reduction rate determination block B4 is sent to the base material dispersion amount determination block B8 via a signal transmission line SL12.

[0047] The base material thickness determination block B5 has the function of calculating and determining the thickness dimension of the base material spread at the construction site per unit time based on the amount of base material reduction obtained from the base material reduction amount determination block B3 and the moving speed of the tire shovel 30 obtained from the vehicle speed sensor of the tire shovel 30 (Figure 9) via the signal transmission line SL15. Here, the thickness of the base material is a function whose parameters are the amount of base material reduction, the moving speed of the tire shovel 30, and the width direction (perpendicular to the moving direction of the tire shovel) length of the construction surface. The base material thickness determination block B5 uses this function to calculate or determine the thickness of the base material. The thickness of the dispersed substrate material determined in the substrate material thickness determination block B5 is sent to the substrate material thickness judgment block B7 via a signal transmission line SL10.

[0048] In Figure 16, the base material thickness judgment block B7 has the function of comparing the thickness of the base material obtained from the base material thickness determination block B5 (the thickness of the base material spread at the construction site per unit time) with a threshold value of the base material thickness, and determining whether the thickness of the base material is appropriate. The thickness of the base material is determined, for example, by comparing the thickness of the base material calculated in base material thickness determination block B5 with an appropriate range (predetermined range) of thicknesses of the base material stored in advance in a memory device not shown, and determining whether the thickness of the base material calculated in base material thickness determination block B5 is within the appropriate range. A judgment as to whether the thickness of the base material is valid or not based on the result of comparing the thickness of the base material with a threshold value (judgment of the validity of the thickness of the base material) is transmitted to the base material dispersion amount judgment block B8 via a signal transmission line SL13.

[0049] The base material dispersion amount judgment block B8 has a function of judging the subsequent amount of base material to be dispersed based on the reduction rate of the base material obtained from the base material reduction rate decision block B4. When determining the amount of base material to be sprayed, for example, the appropriate range (predetermined range) of the base material reduction speed stored in a storage device (not shown) is compared with the reduction speed of the base material acquired from the base material reduction speed determination block B4, and the amount of sprayed is always adjusted to an appropriate range by decreasing the amount of sprayed if the reduction speed of the base material is fast, and increasing the amount of sprayed if the reduction speed of the base material is slow. If the reduction speed of the base material is within the predetermined range, the current amount of sprayed is maintained. Then, the base material spray amount judgment block B8 transmits control signals to the spray mechanism 32A, the stirring blade 33A, and the opening / closing mechanism 34A via the signal transmission line SL14 based on the result of the spray amount judgment. This control will be described later with reference to the flowchart of FIG.

[0050] Furthermore, the base material dispersion amount judgment block B8 has a function of judging the subsequent amount of base material to be dispersed based on the judgment result (the appropriateness of the thickness of the base material) obtained from the base material thickness judgment block B7. When determining the amount of base material to be sprayed, if the thickness of the base material is smaller than the appropriate range (predetermined range), the amount of spraying is increased, and if the thickness of the base material is larger than the appropriate range (predetermined range), the amount of spraying is decreased, thereby always adjusting the thickness dimension of the base material to an appropriate value. If the thickness of the base material is within the predetermined range, the current amount of spraying is maintained. Then, the base material spray amount judgment block B8 transmits control signals to the spray mechanism 32A, the stirring blade 33A, and the opening / closing mechanism 34A via the signal transmission line SL14 based on the result of the judgment of the spray amount. This control will be described later with reference to the flowchart of FIG.

[0051] Although not included in the block diagram of the control unit CU in Figure 16, the control unit CU can be provided with a rate base material reduction rate judgment block (not shown) that has the function of determining whether the base material reduction rate determined in the base material reduction rate determination block B4 is within an appropriate range (predetermined range). In this case, instead of sending the base material reduction rate determined in the base material reduction rate determination block B4 directly to the base material spray amount judgment block B8, the base material reduction rate can be sent from the base material reduction rate determination block B4 to the base material reduction rate judgment block (not shown), and the judgment result as to whether the base material reduction rate is within an appropriate range (predetermined range) (judgment on the validity of the base material reduction rate) can be sent to the base material spray amount judgment block B8. In other words, it is possible to configure so that part of the function performed by the base material dispersion amount judgment block B8 in FIG. 16 is performed by a base material reduction rate judgment block (not shown). In addition, it is also possible to configure the base material reduction rate determination block B4 to have the function of determining whether the base material reduction rate is within an appropriate range (predetermined range) (determining the validity of the base material reduction rate) without providing the base material reduction rate judgment block (not shown).

[0052] The control performed by the substrate material amount monitoring device 40 and the control device CU will be described with reference to Figs. First, with reference to FIG. 17, the control for checking the amount of base material A loaded in the bucket 31 will be described. 17, in step S21, it is determined whether image data (image data obtained by irradiating laser light) of the entire base material in the bucket 31 has been acquired from the base material amount monitoring device 40. This determination is made by the image analysis block B1 of the control device CU. As a result of the judgment in step S21, if image data has been acquired (step S21 is "Yes"), proceed to step S22, and if image data has not been acquired (step S21 is "No"), return to step S21 (a loop in which step S21 is "No"). In step S22 (if image data has been acquired), the image data acquired in step S21 is analyzed. Then, based on the analysis results, the amount of base material in the bucket 31 is calculated and determined. Conventional techniques can be applied to the analysis of image data. The analysis, calculation of base material amount, and determination are performed by image analysis block B1 and base material amount calculation block B2, respectively. Then, the process proceeds to step S23.

[0053] In step S23, it is determined whether the amount of base material in the bucket 31 determined in step S22 is equal to or greater than a threshold value (predetermined value). This determination is made by the base material amount comparison block B6. If the result of the determination in step S23 is that the amount of base material in the bucket 31 is equal to or greater than the threshold value (step S23: "Yes"), the process returns to step S21, and steps S21 to S23 are repeated (a loop in which step S23 is "Yes"). On the other hand, if the amount of base material in the bucket 31 is less than the threshold value (step S23 is "No"), the process proceeds to step S24. In step S24, it is determined whether or not to end the work of scattering the base material. As a result of the determination in step S24, if the base material spraying operation is to be ended (step S24: "Yes"), the process proceeds to "END" and the control ends. On the other hand, if the base material spraying operation is not to be ended (step S24: "No"), the process proceeds to step S25. In the state in which the process has proceeded to step S25, the amount of base material in the bucket 31 is less than the threshold value, so base material is filled (replenished) into the bucket 31. If necessary, the tire shovel 30 is immediately moved to a base material collection point and base material A is replenished. After step S25, the process returns to step S21, and steps S21 to S25 are repeated.

[0054] Next, control of the rate of reduction of the base material will be described mainly with reference to FIG. In FIG. 18, steps S31 and S32 are similar to steps S21 and S22, respectively, described in FIG. 17, and therefore will not be described again. In step S33 following step S32, the current amount of substrate material is compared with the amount of substrate material in the previous cycle to calculate or determine the amount of substrate material reduction in that control cycle. Furthermore, the reduction rate of the base material is calculated (determined) by dividing the calculated reduction amount of the base material by the time required for one control cycle. The reduction amount and reduction speed of the substrate material are determined by a substrate material reduction amount determination block B3 and a substrate material reduction speed determination block B4, respectively. In step S34, it is determined whether the base material reduction rate determined in step S33 is within an appropriate range (a predetermined range). This determination is made by the base material spray amount determination block B8. Although not shown in Fig. 18, this determination can also be made by the base material reduction rate determination block B4. Furthermore, a base material reduction rate determination block (not shown) can be provided in the control device CU to make the above determination. If the result of the judgment in step S34 is that the rate at which the base material is reduced is within a predetermined range (within an appropriate range), the process proceeds to step S35; if the rate at which the base material is reduced is smaller than the predetermined range (slower than the predetermined range), the process proceeds to step S36; if the rate at which the base material is reduced is larger than the predetermined range (faster than the predetermined range), the process proceeds to step S37.

[0055] In step S35 (when the reduction rate of the base material is within a predetermined range), the current (control cycle at that point in time) amount of base material to be dispersed is maintained. That is, the dispersion mechanism 32A (mixing blade 33A, opening / closing mechanism 34A: FIG. 10) also maintains the state of the control cycle. Specifically, the current state of the rotation speed of the mixing blade 33A and the opening area of ​​the opening / closing mechanism 34A is maintained. In step S36 (when the reduction rate of the base material is slower than a predetermined range), the amount of base material to be dispersed is increased. That is, in the dispersion mechanism 32A, the rotation speed of the agitation blade 33A and / or the opening area of ​​the opening mechanism 34A are increased. When controlling to increase the rotation speed of the agitation blade 33A and / or the opening area of ​​the opening mechanism 34A, a control signal is sent from the base material dispersion amount judgment block B8 of the control device CU to the agitation blade 33A and / or the opening mechanism 34A of the dispersion mechanism 32A. In step S37 (when the reduction rate of the base material is faster than the predetermined range), the amount of base material to be dispersed is reduced. That is, in the dispersion mechanism 32A, the rotation speed of the agitation blade 33A and / or the opening area of ​​the opening mechanism 34A are reduced. For this reason, a control signal is sent from the base material dispersion amount judgment block B8 of the control device CU to the dispersion mechanism 32A to reduce the rotation speed of the agitation blade 33A and / or the opening area of ​​the opening mechanism 34A. Once the controls of steps S35 to S37 have been performed, the process proceeds to step S38.

[0056] In step S38, it is determined whether or not the base material scattering operation is to be ended. In step S38, when the base material spraying operation is to be ended (step S38: "Yes"), the control ends. On the other hand, if the base material spraying operation is not to be ended (step S38 is "No"), the control from step S31 onwards is repeated.

[0057] Next, the control of the thickness of the sprayed base material will be described mainly with reference to FIG. In FIG. 19, steps S41 and S42 are similar to steps S21 and S22 in FIG. 17 and steps S31 and S32 in FIG. 18, respectively, and therefore will not be described again. In step S43 in Fig. 19, the amount of base material reduced is calculated (subtracted) and determined by comparing the amount of base material at the current time with the amount of base material in the previous cycle. Furthermore, the thickness of the base material spread per unit time is calculated and determined based on the amount of base material reduced and the moving speed of the tire shovel 30 (Fig. 9). As described above, the thickness of the base material is a function F whose parameters are the amount of base material reduced, the moving speed of the tire shovel 30, and the width direction (perpendicular to the moving direction of the tire shovel) length of the construction surface, and the thickness of the base material is calculated (determined) by this function F. The amount of base material reduced and the thickness of the base material spread per unit time are determined or calculated by the base material reduction amount determination block B3 and the base material thickness determination block B5, respectively. After the calculation in step S43, the process proceeds to step S44. In step S44, the thickness of the base material sprayed in the unit time (control cycle at that time) determined in step S43 is compared with the appropriate range (predetermined range) of the thickness of the base material to determine whether the thickness of the base material determined in step S43 is within the appropriate range. This determination is made by the base material thickness determination block B7. As a result of the judgment in step S44, if the thickness dimension of the base material sprayed in unit time (control cycle at that time) is within a predetermined range, the process proceeds to step S45; if the thickness dimension is smaller (thinner) than the predetermined range, the process proceeds to step S46; if the thickness dimension is larger (thicker) than the predetermined range, the process proceeds to step S47.

[0058] In step S45 (when the thickness dimension of the base material is within a predetermined range), the amount of base material to be dispersed in the control cycle at that time is maintained. That is, the dispersion mechanism 32A (mixing blade 33A, opening / closing mechanism 34A: FIG. 10) also maintains the state (current state) in the control cycle at that time. In step S46 (when the thickness dimension of the base material is thinner than the predetermined range), the amount of base material dispersed is increased. That is, in the dispersion mechanism 32A, the rotation speed of the agitation blade 33A and / or the opening area of ​​the opening mechanism 34A are increased. When controlling to increase the rotation speed of the agitation blade 33A and / or the opening area of ​​the opening mechanism 34A, a control signal is sent from the base material dispersion amount judgment block B8 of the control device CU to the dispersion mechanism 32A (agitation blade 33A, opening mechanism 34A). In step S47 (when the thickness dimension of the base material is thicker than the predetermined range), the current amount of base material dispersed is reduced. That is, in the dispersion mechanism 32A, the rotation speed of the agitation blade 33A and / or the opening area of ​​the opening mechanism 34A are reduced. In order to control the reduction of the rotation speed of the agitation blade 33A and / or the opening area of ​​the opening mechanism 34A, a control signal is sent from the base material dispersion amount judgment block B8 of the control device CU to the dispersion mechanism 32A. Once the controls of steps S45 to S47 have been performed, the process proceeds to step S48.

[0059] In step S48, it is determined whether or not the base material scattering operation is to be ended. In step S48, if the base material spraying operation is to be ended (step S48: "Yes"), the control ends. On the other hand, if the base material spraying operation is not to be ended (step S48 is "No"), the process returns to step S41, and the control from step S41 onwards is repeated.

[0060] The control by the base material quantity monitoring device 40 and the control unit CU in Figures 17 to 19 employs the spraying mechanism 32A shown in Figure 10 as the spraying mechanism, but it is also possible to employ the spraying mechanism 32B shown in Figures 11 to 13 or the spraying mechanism 32C shown in Figure 14. When the spreading mechanism 32A in Fig. 10 is used, the amount of the base material spread is increased or decreased by controlling the rotation speed of the agitating blade 33A and the opening area of ​​the opening / closing mechanism 34A, whereas when the spreading mechanism 32B in Figs. 11 to 13 is used, the amount of the base material spread is increased or decreased by controlling the rotation speed of the screw 33B (agitating blade) and the rotation speed of the rotating disk 35. Moreover, when the spreading mechanism 32C in Fig. 14 is used, the amount of the base material spread is increased or decreased by controlling the rotation speed of the screw 33C (agitating blade) and the drive speed of the conveyor mechanism 36. The tire excavator 30 described in Figs. 9 to 19 can be fitted with the compaction mechanism 22 (roller, tire) of the sprinkling device 20 described in Figs. It should be noted that the scattering of base material by the tire shovel 30 described with reference to Figs. 9 to 19 is limited to use on flat land.

[0061] Here, since the base material is left outdoors, its moisture content varies from day to day and is not constant. Although not clearly shown in the figures, in an embodiment, in order to improve the properties of the base material, for example, bark compost and coco powder can be omitted and locally generated materials (e.g., chips, crushed stone, etc.) can be mixed in to create a uniform soil or base material suitable for spreading. In such base material, impurities such as stones are also removed, making it more suitable for spreading. Table 1 below shows an example of the composition of improved soil suitable for spreading. Table 1 TIFF2024170847000002.tif58117

[0062] In addition, in the base material sprayed in the illustrated embodiment, it was found that adding water to the normal mixes shown in Table 1 (both sandy soil mixes with an adjusted water content of 20% and clayey soil mixes with an adjusted water content near the liquid limit) improves fluidity and allows for efficient spraying without compaction. According to the inventor's experiment, the amount of water added is 150 liters / 1m 3 ~ 500 liters / 1m 3 The amount of water added to the normal mix is ​​150 liters / m 3 If it is less than this, the fluidity will not improve and compaction will be necessary. On the other hand, the amount of water added to the normal mix is ​​500 liters / 1m 3 If the liquid limit of the material to be dispensed is exceeded, The amount of water added to a normal mix is, for example, 300 liters / 1m 3 is preferred. In the illustrated embodiment, the amount of water added to a typical formulation is: 150 liters / 1m 3 ~500 litres / 1m 3 It states that:

[0063] It should be noted that the illustrated embodiment is merely an example and is not intended to limit the technical scope of the present invention. [Explanation of symbols]

[0064] 1. Spray machine 2. Hopper 2A Hopper outlet 3···Feed bowl 4. Compressed air injection nozzle 5. Circular hose or piping 6 Air flow path 7 Air supply source 8. On-off valve 9. Conveyor belt 10...Feeding mechanism 20... Spraying equipment 21. Track belt 22...Compaction mechanism (base material spreading device, roller or tire) 23...spreading mechanism 30···Tire shovel 31 Bucket (tire shovel bucket) 31A...Aperture 32A, 32B, 32C...spreading mechanism 33A···Mixing blade 33B, 33C: Agitator blade or screw 34A... Opening and closing mechanism 35 Rotating disc 36...Conveyor mechanism 40. Base material quantity monitoring device 100···Base material treatment system A... Base material CU...Control device

Claims

1. In the base material processing system used in greening construction methods, The construction site includes steep slopes, and the system has a supply mechanism to reliably supply base materials to the spraying machine. The spray machine is a rotary spray machine, The supply mechanism includes a hopper for supplying material to the spray machine and a feed bowl disposed below the hopper; A base material processing system characterized in that the inner wall of the hopper is provided with a plurality of compressed air injection nozzles arranged at equal intervals in the circumferential direction, and the compressed air injection nozzles have the function of injecting compressed air toward the bottom of the hopper, so that if the base material forms a bridge at the hopper outlet, the bridge is broken down by the compressed air.

2. 2. The base material processing system of claim 1, wherein the plurality of compressed air injection nozzles are connected to an annular hose or pipe, the annular hose or pipe is connected to an air supply source via an air flow path, an on-off valve is interposed in the air flow path, the on-off valve is controlled to open and close by a control device, and the timing at which the injection nozzle in the hopper injects compressed air is synchronized with the timing at which the material is dropped from the hopper to the feed bowl.

3. 2. The base material processing system of claim 1, wherein the plurality of compressed air injection nozzles are connected to an annular hose or pipe, the annular hose or pipe is in communication with an air supply source via an air flow path, an on-off valve is interposed in the air flow path, the on-off valve is controlled to open and close by a control device, and the timing at which the injection nozzle in the hopper injects compressed air is synchronized with the drive of a belt conveyor which supplies material to the hopper.

4. In the base material processing system used in greening construction methods, The construction site includes a gentle slope and is equipped with a spraying device for spraying base materials. The spraying device includes an endless track, and a compaction mechanism is provided behind the endless track in the direction of travel; A base material processing system characterized by having a scattering mechanism that scatters base material forward in the direction of travel.

5. In the base material processing system used in greening construction methods, The construction site is on flat land and equipped with a tire shovel capable of spreading base materials. The bucket of the tire shovel is equipped with a spreading mechanism for spreading the base material and a base material amount monitoring device for measuring the amount of base material in the bucket. A substrate processing system comprising:

6. The base material amount monitoring device provided in the bucket of the tire shovel has a device for irradiating laser light and an imaging mechanism for taking an image of the irradiated laser light, and is connected to a control device that determines the amount of base material; The control device includes: The function of recognizing the entire base material inside the bucket as an image using laser light, A function to analyze images and calculate the amount of base material in the bucket from the image fluctuations.

6. The substrate processing system according to claim 5, further comprising a function for determining in real time whether the amount of substrate in the bucket has fallen below a predetermined value.

7. 7. The substrate processing system according to claim 6, wherein the control device has a function of measuring the amount of substrate reduced by the spraying and calculating a rate of reduction of the substrate.

8. 7. A base material processing system according to claim 6, wherein the control device has a function of calculating a thickness dimension of the spread base material based on the amount of base material reduced by spreading and the moving speed of the tire shovel C.

9. In the method for producing base material used in the base material treatment system according to any one of claims 1 to 8, the amount of 100 liters / 1 m is 100 liters / 1 m for a sandy soil type mix with an adjusted moisture content of 20% or a clayey soil type mix with an adjusted moisture content near the liquid limit. 3 ~300 liters / 1m 3 A method for producing a base material, comprising adding water.

10. In the base material processing system used in greening construction methods, The construction site has slopes, gentle slopes and flat land. A base material processing system comprising: a supply mechanism according to any one of claims 1 to 3; a spraying device according to claim 4; and a tire shovel according to any one of claims 5 to 8.

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