Concrete and CSG manufacturing equipment

Abstract

To provide a manufacturing apparatus capable of producing CSG and concrete in a single manufacturing device. [Solution] In the manufacturing apparatus 100, a mixer 10 is located on the first level F1 of the batching plant 1. A water supply device 20, a cement supply device 30, a sand weighing tank 40, aggregate weighing tanks 50A to 50C, and a CSG material weighing tank 60 are located on the second level F2. A sand storage tank 41 and aggregate storage tanks 51A to 51C are located on the third level F3. The manufacturing apparatus 100 includes a first conveyor 4 for supplying sand and aggregate, a second conveyor 5 for supplying CSG material, and a second conveyor control unit 83 that controls the drive of the second conveyor 5 based on the weight of the CSG material supplied from the second conveyor 5 to the CSG material weighing tank 60.

Description

Technical Field

[0001] The present invention relates to an apparatus for manufacturing concrete and CSG.

Background Art

[0002] Patent Document 1 discloses a dam embankment in which a main body portion having a truncated cone shape in cross-section is constructed of CSG (Cemented Sand and Gravel) material and the surface of this main body portion is covered with concrete.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When constructing the dam embankment disclosed in Patent Document 1, a manufacturing apparatus for manufacturing CSG and a manufacturing apparatus for manufacturing concrete are required.

[0005] However, depending on the construction site, sufficient space for installing a manufacturing apparatus for manufacturing CSG and a manufacturing apparatus for manufacturing concrete may not be available.

[0006] An object of the present invention is to provide a manufacturing apparatus capable of manufacturing CSG and concrete with one manufacturing apparatus.

Means for Solving the Problems

[0007] The present invention relates to a concrete and CSG manufacturing apparatus capable of producing concrete, which is a mixture of water, cement, sand, and aggregate, and CSG, which is a mixture of water, cement, and CSG material, comprising: a mixer located on the first level capable of selectively producing concrete and CSG; a water supply device located on the second level above the first level for supplying water to the mixer; a cement supply device located on the second level for supplying cement to the mixer; a sand weighing tank located on the second level for weighing the weight of sand to be supplied to the mixer; an aggregate weighing tank located on the second level for weighing the weight of aggregate to be supplied to the mixer; a CSG material weighing tank located on the second level for weighing the weight of CSG material to be supplied to the mixer; and the second level The system includes a sand storage tank located on a higher third level for storing sand to be supplied to a sand weighing tank, an aggregate storage tank located on the third level for storing aggregate to be supplied to an aggregate weighing tank, a first conveyor that supplies sand and aggregate to the sand storage tank and the aggregate storage tank, respectively, from above the sand storage tank and the aggregate storage tank, a second conveyor that supplies CSG material to the CSG material weighing tank from above the CSG material weighing tank, a sand on / off valve for allowing or blocking the supply of sand from the sand storage tank to the sand weighing tank, an aggregate on / off valve for allowing or blocking the supply of aggregate from the aggregate storage tank to the aggregate weighing tank, and a second conveyor control unit that controls the driving of the second conveyor based on the weight of the CSG material supplied from the second conveyor to the CSG material weighing tank. [Effects of the Invention]

[0008] This invention allows for the production of both concrete and CSG using a single manufacturing apparatus. This eliminates the need to allocate separate space for concrete and CSG manufacturing apparatuses. Therefore, concrete and CSG can be manufactured even at construction sites with limited space. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a schematic diagram of the concrete and CSG manufacturing apparatus according to this embodiment. [Figure 2] Figure 2 is a schematic diagram of the batching plant according to this embodiment. [Figure 3] Figure 3 is a block diagram of a controller for controlling the concrete and CSG manufacturing apparatus according to this embodiment. [Figure 4] Figure 4 shows an example of the concrete and CSG mix according to this embodiment. [Figure 5] Figure 5 is a schematic diagram of a batching plant according to a modified example. [Figure 6] Figure 6 is a schematic diagram of a batching plant relating to another modified example. [Modes for carrying out the invention]

[0010] The following describes a manufacturing apparatus 100 for producing concrete and CSG according to an embodiment of the present invention. The manufacturing apparatus 100 is installed, for example, at a dam construction site to produce concrete and CSG for constructing the dam body. Concrete is a cement-based mixed material produced by mixing aggregate (sand, gravel, etc.) with water and cement. CSG (Cemented Sand and Gravel) is a cement-based mixed material produced by mixing CSG material (hereinafter also referred to as "on-site generated material") such as sand, gravel, and rock fragments obtained around the construction site with water and cement. Specifically, the CSG material is unwashed excavated material, or even if it includes washed material, the mass fraction of material that passes through a sieve with a nominal size of 0.15 mm, according to JIS A 1204 "Method for testing the particle size distribution of soil", exceeds 3%.

[0011] Furthermore, if the CSG material includes washed material, the mass fraction measurement shall follow JIS A 1204:2009 "Soil Particle Size Test Method". In general ready-mixed concrete aggregates, according to JIS A 1204:2009 "Soil Particle Size Test Method", the mass fraction [%] of particles passing through a sieve with a nominal size of 0.15 mm is about 2% or less of the total material after mixing, indicating a low amount of fine particles. In contrast, the CSG material with a high amount of fine particles used in this embodiment is based on the use of unwashed, locally sourced material. However, this does not mean that it cannot be used if it contains some soil material that is not locally sourced or if it contains washed soil material. Specifically, the particle size is defined as the mass fraction [%] of particles passing through a sieve with a nominal size of 0.15 mm, according to JIS A 1204:2009 "Soil Particle Size Test Method", which exceeds 3% of the total CSG material. Furthermore, the lower limit of the mass fraction [%] of material passing through a sieve with a nominal size of 0.15 mm applies to materials exceeding 4%, 5%, 10%, and 25% of the total CSG material. On the other hand, for CSG material, the upper limit of the mass fraction [%] of material passing through a sieve with a nominal size of 0.15 mm is assumed to be 35% or less, preferably 30% or less, of the total CSG material.

[0012] As shown in Figure 1, the manufacturing apparatus 100 comprises a batching plant 1 for manufacturing concrete and CSG, a plurality of aggregate bins 2 located on the ground for storing sand and aggregate, a CSG material bin 3 (CSG material storage tank) located on the ground for storing CSG material, a first conveyor 4 for transporting the sand and aggregate stored in the aggregate bins 2 to the batching plant 1, a second conveyor 5 for transporting the CSG material stored in the CSG material bins 3 to the batching plant 1, and a controller 80 (see Figure 2) for controlling the manufacturing apparatus 100.

[0013] Next, we will explain the specific configuration of batcher plant 1 with reference to Figure 2.

[0014] As shown in Figure 2, the batching plant 1 of this embodiment has three levels. Specifically, the batching plant 1 has a first level F1 located above the ground, a second level F2 located directly above the first level F1, and a third level F3 located directly above the second level F2. The height of the first level F1 from the ground is set to a height that allows vehicles (e.g., dump trucks and agitator trucks) for transporting concrete and CSG produced by the mixer 10 to enter below the first level F1.

[0015] The batching plant 1 includes a mixer 10 capable of selectively producing concrete and CSG, a water supply device 20 for supplying water to the mixer 10, a cement supply device 30 for supplying cement to the mixer 10, a sand weighing tank 40 for weighing the weight of sand to be supplied to the mixer 10, a sand storage tank 41 for storing the sand supplied to the sand weighing tank 40, aggregate weighing tanks 50A to 50C for weighing the weight of aggregate to be supplied to the mixer 10, aggregate storage tanks 51A to 51C for storing the aggregate supplied to the aggregate weighing tanks 50A to 50C, respectively, a CSG material weighing tank 60 for weighing the weight of CSG material to be supplied to the mixer 10, and a sorting device 70 for sorting the sand and aggregate transported by the first conveyor 4 into the sand storage tank 41 and the aggregate storage tanks 51A to 51C. In this embodiment, "sand" refers to aggregate with a maximum size of 5 mm or less (fine aggregate), while "aggregate" refers to aggregate with a maximum size of, for example, 5 mm to 80 mm (coarse aggregate).

[0016] In this embodiment, the mixer 10 is located in the first layer F1. The mixer 10 is, for example, a forced twin-screw mixer. The mixer 10 produces concrete, which is a mixture of water supplied from the water supply device 20, cement supplied from the cement supply device 30, sand supplied from the sand weighing tank 40, and aggregate supplied from the aggregate weighing tanks 50A to 50C, and CSG, which is a mixture of water supplied from the water supply device 20, cement supplied from the cement supply device 30, and CSG material supplied from the CSG material weighing tank 60.

[0017] The water supply device 20 is arranged on the second floor F2. The water supply device 20 supplies water to the mixer 10 from above the mixer 10. The water supply device 20 of the present embodiment does not include a tank for storing water in the batching plant 1, and controls the flow of water supplied from outside the batching plant 1 through a pipe. Note that a water measuring tank capable of storing and measuring water may be provided.

[0018] The cement supply device 30 is arranged on the second floor F2. The cement supply device 30 supplies cement to the mixer 10 from above the mixer 10. In the present embodiment, a cement storage tank (not shown) for storing cement is provided outside the batching plant 1, and the cement supplied from this cement storage tank and pre-measured outside the batching plant 1 is supplied to the mixer 10. Note that a storage tank for storing cement or a measuring tank for measuring cement may be provided in the batching plant 1. Also, in the present embodiment, fly ash is supplied to the mixer 10 by the cement supply device 30. The fly ash is supplied from a storage tank for storing fly ash installed outside the batching plant 1 and is conveyed to the cement supply device 30 together with the cement.

[0019] The sand measuring tank 40 is arranged on the second floor F2. The sand measuring tank 40 is provided below the sand storage tank 41 and measures the weight of the sand (fine aggregate) for concrete supplied to the mixer 10. A weight sensor 45 for measuring the weight of the sand in the sand measuring tank 40 is provided in the sand measuring tank 40. The weight data detected by the weight sensor 45 is transmitted to the controller 80.

[0020] An on-off valve 43 for allowing or blocking the supply of sand from the sand measuring tank 40 to the mixer 10 is provided at the opening on the lower end side of the sand measuring tank 40. The operation of the on-off valve 43 is controlled by the controller 80.

[0021] The sand storage tank 41 is arranged on the third layer F3. The sand storage tank 41 stores the sand (fine aggregate) for concrete to be supplied to the sand measuring tank 40. An on-off valve 42 (sand on-off valve) for allowing or blocking the supply of sand (fine aggregate) from the sand storage tank 41 to the sand measuring tank 40 is provided at the opening on the lower end side of the sand storage tank 41. The operation of the on-off valve 42 is controlled by the controller 80.

[0022] The aggregate measuring tanks 50A to 50C are arranged on the second layer F2. The aggregate measuring tanks 50A to 50C are provided below the aggregate storage tanks 51A to 51C respectively, and measure the weight of the aggregate (coarse aggregate) to be supplied to the mixer 10. Weight sensors 55A to 55C for measuring the weight of the aggregate (coarse aggregate) in the aggregate measuring tanks 50A to 50C are provided in each of the aggregate measuring tanks 50A to 50C. The weight data detected by each of the weight sensors 55A to 55C is transmitted to the controller 80.

[0023] On-off valves 53A to 53C for allowing or blocking the supply of aggregate (coarse aggregate) from the aggregate measuring tanks 50A to 50C to the mixer 10 are provided at the openings on the lower end side of each of the aggregate measuring tanks 50A to 50C. The operations of the on-off valves 53A to 53C are controlled by the controller 80.

[0024] The aggregate storage tanks 51A to 51C store the coarse aggregate to be supplied to the aggregate measuring tanks 50A to 50C respectively. The coarse aggregate stored in the aggregate bin 2 is supplied to the aggregate storage tanks 51A to 51C by the first conveyor 4. The coarse aggregate conveyed by the first conveyor 4 is distributed by the sorting device 70 and supplied to the corresponding aggregate storage tanks 51A to 51C that store the coarse aggregate of corresponding sizes. In this embodiment, for example, the aggregate storage tank 51A stores the aggregate with a maximum size of 80 mm to 40 mm, the aggregate storage tank 51B stores the aggregate with a maximum size of 40 mm to 20 mm, and the aggregate storage tank 51C stores the aggregate with a maximum size of 20 mm to 5 mm.

[0025] At the lower end openings of each of the aggregate storage tanks 51A to 51C, on-off valves 52A to 52C (aggregate on-off valves) are provided to allow or block the supply of aggregate from the aggregate storage tanks 51A to 51C to the aggregate weighing tanks 50A to 50C. The operation of the on-off valves 52A to 52C is controlled by the controller 80.

[0026] The CSG material weighing tank 60 is located on the second level F2. The CSG material weighing tank 60 weighs the CSG material to be supplied to the mixer 10. The CSG material weighing tank 60 is equipped with a weight sensor 65 that measures the weight of the CSG material that has been transported into the CSG material weighing tank 60 by the second conveyor 5. The weight data detected by the weight sensor 65 is transmitted to the controller 80.

[0027] An on-off valve 63 is provided at the lower end opening of the CSG material weighing tank 60 to allow or block the supply of sand from the CSG material weighing tank 60 to the mixer 10. The operation of the on-off valve 63 is controlled by the controller 80.

[0028] Next, we will explain the controller 80.

[0029] The controller 80 controls the operation of the mixer 10, water supply device 20, cement supply device 30, on-off valve 42, on-off valve 43, on-off valves 52A-52C, on-off valves 53A-53C, on-off valve 61, first conveyor 4, second conveyor 5, and distribution device 70.

[0030] Specifically, as shown in Figure 3, the controller 80 includes a distribution device control unit 81 for controlling the drive of the distribution device 70, a first conveyor control unit 82 for controlling the drive of the first conveyor 4, a second conveyor control unit 83 for controlling the drive of the second conveyor 5, a water supply device control unit 84 for controlling the water supply device 20, a cement supply device control unit 85 for controlling the cement supply device 30, a sand valve control unit 86 for controlling the valves 42 and 43, an aggregate valve control unit 87 for controlling the valves 52A-52C and 53A-53C, a CSG material valve control unit 88 for controlling the valve 63, a mixer control unit 89 for controlling the mixer 10, and a storage unit M for storing various data.

[0031] The controller 80 includes a microcomputer with a central processing unit (CPU), read-only memory (ROM), random access memory (RAM), and input / output interface (I / O interface), as well as operating means such as a touch panel. The controller 80 can also be configured with multiple computers. Note that the control units 81 to 89 of the controller 80 are virtual units representing the functions of the controller 80 and do not represent physical existence.

[0032] Next, the operation of the manufacturing apparatus 100 will be described.

[0033] First, we will explain the control process when supplying aggregate and sand from aggregate bin 2 to sand storage tank 41 and aggregate weighing tanks 50A to 50C.

[0034] When supplying aggregate or sand from aggregate bins 2 installed on the ground to sand storage tanks 41 and aggregate weighing tanks 50A to 50C, the operator can specify the sand or aggregate to be supplied, for example, by pressing a button. When the controller 80 receives a button operation signal, the sorting device control unit 81 moves the outlet portion 70a of the sorting device 70 to above the opening of the storage tank (either sand storage tank 41 or aggregate storage tanks 51A to 51C) where the specified sand or aggregate is stored (above aggregate storage tank 51A in Figure 2). Next, the first conveyor 4 is driven. As a result, sand or aggregate is transported from the ground to the sorting device 70 by the first conveyor 4, and the outlet portion 70a of the sorting device 70 is supplied to the specified storage tank (either sand storage tank 41 or aggregate storage tanks 51A to 51C).

[0035] Next, we will describe the control system used when producing concrete and CSG by batching plant 1.

[0036] The memory unit M of the controller 80 has pre-stored concrete and CSG mix designs. Figure 4 shows an example of concrete and CSG mix designs. Figure 4(A) shows an example of a concrete mix design, and Figure 4(B) shows an example of a CSG mix design. In Figure 4, for the sake of simplicity, only two types of concrete mix designs and one type of CSG mix design are shown, but in reality, the controller 80 stores many more types of mix designs.

[0037] First, let's explain the control of the batcher plant 1.

[0038] First, we will explain the manufacturing process of concrete for protective, waterproofing, and structural purposes, as shown in Figure 4(A).

[0039] When the operator instructs the controller 80 to manufacture protective, waterproof, and structural concrete, the controller 80 supplies the mixer 10 with an amount of material corresponding to the concrete mix shown in Figure 4(A).

[0040] Specifically, first, cement and fly ash are supplied to the mixer 10. Specifically, the cement supply device control unit 85 of the controller 80 controls the cement supply device 30 to supply the mixer 10 with an amount of cement and fly ash corresponding to the mix shown in Figure 4(A). The fly ash is supplied to the cement supply device 30 along with the cement, after being pre-measured outside the batching plant 1 from a storage tank for storing fly ash located outside the batching plant 1. In this embodiment, the cement supply device 30 directly supplies a predetermined amount of cement and fly ash, pre-measured outside the batching plant 1, to the mixer 10. The cement supply device 30 may also be equipped with a storage tank for storing cement and fly ash and a measuring tank for measuring cement and fly ash within the batching plant 1.

[0041] Furthermore, the mixer control unit 89 of the controller 80 drives the mixer 10 when it is supplied with cement and fly ash. This causes the cement and fly ash supplied to the mixer 10 to be stirred and mixed within the mixer 10.

[0042] Next, sand (fine aggregate) is supplied to the mixer 10. Specifically, the sand valve control unit 86 of the controller 80 first closes the valve 43 provided in the sand weighing tank 40 and opens the valve 42 provided in the sand storage tank 41. As a result, the sand in the sand storage tank 41 is supplied to the sand weighing tank 40. The weight of the sand supplied to the sand weighing tank 40 is detected by the weight sensor 45, and the detected weight data is transmitted to the controller 80.

[0043] When the weight of the sand input from the weight sensor 45 reaches the value corresponding to the mixture shown in Figure 4(A), the controller 80 closes the on-off valve 42. Then, it opens the on-off valve 43 to supply the sand from the sand weighing tank 40 to the mixer 10.

[0044] Next, coarse aggregate is supplied to the mixer 10. Specifically, when supplying coarse aggregate with a maximum dimension of 80 mm to 40 mm (hereinafter also referred to as "coarse aggregate G1") to the mixer 10, the aggregate on / off valve control unit 87 of the controller 80 first closes the on / off valve 53A provided in the aggregate weighing tank 50A and opens the on / off valve 52A provided in the aggregate storage tank 51A. As a result, the coarse aggregate G1 in the aggregate storage tank 51A is supplied to the aggregate weighing tank 50A. The weight of the coarse aggregate G1 supplied to the aggregate weighing tank 50A is detected by the weight sensor 55A, and the detected weight data is transmitted to the controller 80.

[0045] When the controller 80 receives the weight of coarse aggregate G1 from the weight sensor 55A and reaches the value corresponding to the mix shown in Figure 4(A), it closes the on-off valve 52A. Then, it opens the on-off valve 53A and supplies the coarse aggregate in the aggregate weighing tank 50A to the mixer 10.

[0046] When supplying coarse aggregate with a maximum dimension of 40 mm to 20 mm (hereinafter also referred to as "coarse aggregate G2") and coarse aggregate with a maximum dimension of 20 mm to 5 mm (hereinafter also referred to as "coarse aggregate G3") to the mixer 10, similarly, the aggregate on / off valve control unit 87 of the controller 80 first closes the on / off valves 53B and 53C provided in the aggregate weighing tank 50A, and opens the on / off valves 52B and 52C provided in the aggregate storage tanks 51B and 51C. As a result, the coarse aggregates G2 and G3 in the aggregate storage tanks 51B and 51C are supplied to the aggregate weighing tanks 50B and 50C, respectively. The weight of the coarse aggregates G2 and G3 supplied to the aggregate weighing tanks 50B and 50C is detected by weight sensors 55B and 55C, and the detected weight data is transmitted to the controller 80.

[0047] When the controller 80 receives input from weight sensors 55B and 55C for the weights of coarse aggregates G2 and G3, respectively, and the weights reach the values ​​shown in Figure 4(A) for the mixture, it closes the on-off valves 52B and 52C. Then, it opens the on-off valves 53B and 53C to supply the coarse aggregates G2 and G3 from the aggregate weighing tanks 50B and 50C to the mixer 10.

[0048] After cement, sand (fine aggregate), and coarse aggregate are supplied to the mixer 10 in this manner, the controller 80 stirs and mixes them in the mixer 10 for a predetermined time. Note that the order in which the cement, sand (fine aggregate), and coarse aggregate are supplied does not have to be the order described above.

[0049] Subsequently, water is supplied to the mixer 10. Specifically, the water supply device control unit 84 of the controller 80 controls the water supply device 20 to supply an amount of water to the mixer 10 according to the mixture shown in Figure 4(A). The amount of water supplied from the water supply device 20 is managed, for example, based on the flow rate detected by a flow meter. However, it is not limited to this, and may also be managed based on time. In this embodiment, the water supply device 20 does not have a water storage tank, but the batching plant 1 may have a water storage tank.

[0050] The process for producing the standard mix concrete shown in Figure 4(A) is the same as the procedure described above, except that coarse aggregate with a maximum size of 80mm to 40mm (coarse aggregate G1), coarse aggregate with a maximum size of 40mm to 20mm (coarse aggregate G2), and fly ash are not supplied. Therefore, the explanation is omitted.

[0051] Next, we will explain the case of manufacturing CSG as shown in Figure 4(B).

[0052] When the operator instructs the controller 80 to manufacture CSG, the controller 80 supplies the mixer 10 with an amount of material corresponding to the formulation shown in Figure 4(B).

[0053] First, cement is supplied to mixer 10. The method of supplying the cement is the same as when manufacturing concrete as described above, except that fly ash is not mixed into the cement, so the explanation will be omitted.

[0054] Next, the CSG material is supplied. The manufacturing apparatus 100 of this embodiment does not have a storage tank for storing the CSG material within the batching plant 1. Therefore, in the manufacturing apparatus 100 of this embodiment, first, the second conveyor control unit 83 of the controller 80 drives the second conveyor 5 to supply the CSG material stored in the CSG material bin 3 located on the ground to the CSG material weighing tank 60 (when supplying, the on / off valve 63 is in the closed state). The weight of the CSG material supplied into the CSG material weighing tank 60 is detected by the weight sensor 65 as described above.

[0055] The second conveyor control unit 83 of the controller 80 stops the second conveyor 5 when the weight of the CSG material input from the weight sensor 65 reaches the value corresponding to the blend shown in Figure 4(B). Subsequently, the CSG material on / off valve control unit 88 of the controller 80 opens the on / off valve 63 from closed to open, supplying the CSG material in the CSG material weighing tank 60 to the mixer 10.

[0056] After the cement and CSG material are supplied to the mixer 10 in this manner, the controller 80 stirs and mixes them in the mixer 10 for a predetermined time.

[0057] Next, water is supplied to mixer 10. The method of supplying water is the same as during the concrete manufacturing process described above, so the explanation is omitted.

[0058] Furthermore, when switching between concrete and CSG production in batching plant 1, mixer 10 is cleaned.

[0059] The manufacturing apparatus 100 configured as described above will produce the following effects.

[0060] In this embodiment, the manufacturing apparatus 100 does not have a storage tank for CSG material within the batching plant 1, so the batching plant 1 can be made smaller. Furthermore, since the batching plant 1 can produce concrete and CSG with a single mixer 10, there is no need to secure space for separately installing manufacturing equipment for producing concrete and manufacturing equipment for producing CSG. For these reasons, the manufacturing apparatus 100 makes it possible to produce concrete and CSG even at construction sites with limited space.

[0061] Furthermore, since the manufacturing apparatus 100 of this embodiment does not have a tank for storing water or a storage tank for storing cement within the batching plant 1, the batching plant 1 can be made even smaller.

[0062] Furthermore, since the manufacturing apparatus 100 is equipped with a CSG material bin 3 for storing CSG material located upstream of the second conveyor 5, CSG material can be stably supplied to the CSG material weighing tank 60 even without a storage tank for CSG material being provided within the batching plant 1.

[0063] In the above embodiment, there is one mixer 10 installed in the batching plant 1, but as shown in Figure 5, there may be two mixers 10 installed in the batching plant 1. In this case, as shown in Figure 5, a distribution device 90 is installed in the batching plant 1 on the first level F1, above the two mixers 10A and 10B, to distribute the materials supplied from the water supply device 20, cement supply device 30, sand weighing tank 40, aggregate weighing tanks 50A to 50C, and CSG material weighing tank 60 to either mixer 10A or 10B.

[0064] In this modified batching plant 1, a switch is provided for the operator to select whether to use mixer 10A or 10B when instructing controller 80 to produce concrete or CSG.

[0065] When either mixer 10A or 10B is selected by a switch, the controller 80 moves the outlet portion 90a of the distribution device 90 above the selected mixer 10A or 10B. Thereafter, concrete or CSG is produced in the same procedure as in the above embodiment. The distribution device 90 may also be of a type that selectively opens or closes chutes (not shown) that open above mixers 10A and 10B, respectively.

[0066] In this configuration, with two mixers 10A and 10B installed in batching plant 1, concrete and CSG can be produced simultaneously in the two mixers 10A and 10B. Furthermore, concrete can be produced simultaneously in the two mixers 10A and 10B, or CSG can be produced simultaneously in the two mixers 10A and 10B. This allows for the efficient production of necessary materials according to the progress of the work, significantly improving work efficiency compared to batching plant 1 shown in Figure 2.

[0067] Next, with reference to Figure 6, further modifications will be described. In the following, only the differences from the above-described manufacturing apparatus 100 will be explained, and identical components will be given the same numbering and their explanations will be omitted.

[0068] The batching plant 101 shown in Figure 6 is equipped with two mixers 10A (first mixer) and mixer 10B (second mixer). The batching plant 101 is also equipped with distribution devices 24, 34, 44, 54A-54C, and 64, which are provided in the water supply device 20, cement supply device 30, sand weighing tank 40, aggregate weighing tanks 50A-50C, and CSG material weighing tank 60, respectively. Specifically, in the batching plant 101, a distribution device 24 (water distribution device) is provided at the outlet of the water supply device 20, and a distribution device 34 (cement distribution device) is provided at the outlet of the cement supply device 30. Furthermore, a distribution device 44 (sand distribution device) is provided below the on-off valve 43 of the sand weighing tank 40, distribution devices 54A to 54C (aggregate distribution devices) are provided below the on-off valves 53A to 53C of the aggregate weighing tanks 50A to 50C, respectively, and a distribution device 64 (CSG material distribution device) is provided below the on-off valve 63 of the CSG material weighing tank 60. The operation of each distribution device 24, 34, 44, 54A to 54C, and 64 is controlled by the controller 80.

[0069] Furthermore, each of the distribution devices 24, 34, 44, 54A~54C, and 64 is provided with a connecting chute (not shown) that opens above the mixers 10A and 10B. Each of these distribution devices 24, 34, 44, 54A~54C, and 64 is provided with a selection device (not shown) that opens one chute to the mixers 10A and 10B and blocks the other chute.

[0070] When either mixer 10A or 10B is selected by a switch, the controller 80 controls the selection devices of each distribution device 24, 34, 44, 54A~54C, 64 to open the chute that supplies material to the selected mixer 10A or mixer 10B, and to close the chute that does not supply material. Thereafter, concrete or CSG is produced in the same procedure as in the above embodiment.

[0071] In the batching plant 1 shown in Figure 5, for example, the distributor 90 cannot be switched until all the material has been fed into one of the mixers 10A and 10B. However, in the batching plant 101 shown in Figure 6, even while material is being supplied to one of the mixers 10A and 10B, if the material is different from the material being supplied to the other mixer 10A or 10B, material can be supplied to the other mixer 10A or 10B as well. This allows for a greater improvement in work efficiency compared to the batching plant 1 shown in Figure 5.

[0072] Although embodiments of the present invention have been described above, these embodiments only represent a part of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

[0073] In the above embodiments and modifications, all processes for manufacturing concrete or CSG are performed automatically by the controller 80, but some processes, or each process, may be instructed by an operator.

[0074] In the above embodiment, the example described was one in which three aggregate weighing tanks 50A to 50C and three aggregate storage tanks 51A to 51C are provided, but these numbers can be changed as appropriate. Also, for example, one aggregate weighing tank 50A to 50C may be used for each of the aggregate storage tanks 51A to 51C. [Explanation of Symbols]

[0075] 100 Manufacturing equipment 1,101 Batcher Plant 3. CSG material bottle (CSG material storage tank) 4. First Conveyor 5. Second Conveyor 10 Mixer 10A Mixer (First Mixer) 10B Mixer (2nd Mixer) 20 Water supply equipment 24 Distribution device (water distribution device) 30 Cement supply device 34. Distributor (Cement Distributor) 40 Sand measuring tank 41 Sand storage tank 42. Shut-off valve (shut-off valve for sand) 43. Shut-off valve 44 Distribution device (sand distribution device) 50 Aggregate measuring tank 50A~50C Aggregate weighing tank 51A~51C Aggregate storage tank 52A~52C Shut-off valves (Shut-off valves for aggregates) 53A~53C Shut-off valves 54A~54C Distribution device (aggregate distribution device) 60 CSG material measuring tank 61 Shut-off valve 63 Shut-off valve 64 Distribution device (CSG material distribution device) 80 Controllers 82 First Conveyor Control Unit 83 Second Conveyor Control Unit 84 Water Supply System Control Unit 85 Cement supply device control unit 86 Sand valve control unit 87 Aggregate valve control unit 88 CSG Material On / Off Valve Control Unit F1 1st layer F2 2nd layer F3 3rd layer

Claims

1. A concrete and CSG manufacturing apparatus capable of producing concrete, which is a mixture of water, cement, sand, and aggregate, and CSG, which is a mixture of water, cement, and CSG material, A mixer located in the first layer, capable of selectively producing the concrete and the CSG, A water supply device is located on the second level above the first level and supplies water to the mixer, A cement supply device is arranged in the second layer and supplies cement to the mixer, A sand weighing tank is located on the second level and weighs the sand to be supplied to the mixer, Arranged in the second layer, the aggregate weighing tank weighs the aggregate to be supplied to the mixer, A CSG material weighing tank is located in the second layer and weighs the CSG material to be supplied to the mixer, A sand storage tank is located on the third level above the second level and stores the sand to be supplied to the sand weighing tank, Arranged in the third layer, the aggregate storage tank stores the aggregate to be supplied to the aggregate weighing tank, A first conveyor supplies sand and aggregate to the sand storage tank and the aggregate storage tank, respectively, from above the sand storage tank and the aggregate storage tank, A second conveyor that supplies CSG material to the CSG material weighing tank from above, A sand on / off valve for allowing or blocking the supply of sand from the sand storage tank to the sand weighing tank, An aggregate on / off valve for allowing or blocking the supply of aggregate from the aggregate storage tank to the aggregate weighing tank, A concrete and CSG manufacturing apparatus comprising: a second conveyor control unit that controls the drive of the second conveyor based on the weight of the CSG material supplied from the second conveyor to the CSG material weighing tank; and

2. A concrete and CSG manufacturing apparatus capable of producing concrete, which is a mixture of water, cement, sand, and aggregate, and CSG, which is a mixture of water, cement, and CSG material, A first mixer and a second mixer are arranged in the first layer and are capable of selectively producing the concrete and the CSG, A water supply device is located on the second level above the first level and supplies water to the first mixer and the second mixer, A water distribution device that distributes water supplied from the water supply device to the first mixer or the second mixer, A cement supply device arranged in the second layer and supplying cement to the first mixer and the second mixer, A cement distribution device that distributes cement supplied from the cement supply device to the first mixer or the second mixer, A sand weighing tank is located on the second level and weighs the sand to be supplied to the first mixer and the second mixer, A sand distribution device that distributes the sand stored in the sand weighing tank to the first mixer or the second mixer, Arranged in the second layer, the aggregate weighing tank weighs the aggregate to be supplied to the first mixer and the second mixer, An aggregate distribution device that distributes the aggregate stored in the aggregate weighing tank to the first mixer or the second mixer, A CSG material weighing tank is located on the second level and weighs the CSG material to be supplied to the first mixer and the second mixer, A CSG material distribution device that distributes the CSG material stored in the CSG material weighing tank to the first mixer or the second mixer, A sand storage tank is located on the third level above the second level and stores the sand to be supplied to the sand weighing tank, Arranged in the third layer, the aggregate storage tank stores the aggregate to be supplied to the aggregate weighing tank, A first conveyor supplies sand and aggregate to the sand storage tank and the aggregate storage tank, respectively, from above the sand storage tank and the aggregate storage tank, A second conveyor that supplies CSG material to the CSG material weighing tank from above, A sand on / off valve for allowing or blocking the supply of sand from the sand storage tank to the sand weighing tank, An aggregate on / off valve for allowing or blocking the supply of aggregate from the aggregate storage tank to the aggregate weighing tank, A concrete and CSG manufacturing apparatus comprising: a second conveyor control unit that controls the drive of the second conveyor based on the weight of the CSG material supplied from the second conveyor to the CSG material weighing tank; and

3. A concrete and CSG manufacturing apparatus according to claim 1 or 2, A concrete and CSG manufacturing apparatus further comprising a CSG material storage tank provided upstream of the second conveyor for storing the CSG material that is transported to the CSG material weighing tank by the second conveyor.

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