Mixed product manufacturing plant and manufacturing method of mixed product manufacturing plant

Abstract

To provide a mixed product manufacturing plant where facility maintenance is easily performed.SOLUTION: A mixing plant 1 has: a cement charging hopper 400 that stores cement which is a hydraulic-setting curative agent; and a mixer 8 that mixes materials including the cement supplied from the cement charging hopper 400. The cement charging hopper 400 is located above the mixer 8 and is installed in a position adjacent to the mixer 8 in a plan view. Specifically, the cement charing hopper 400 is installed in a position at least partially overlapping with the mixer 8 in a plan view.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a kneaded material production plant and a method for producing a kneaded material production plant. [Background technology]

[0002] For example, Patent Document 1 discloses an on-site concrete mixing production unit in which a plurality of related devices are integrally assembled on a unit base, the related devices including a mixer capable of measuring weight changes using a load cell, a first main hopper for receiving a first concrete material, a second main hopper for receiving a second concrete material, a sub-hopper for receiving a third concrete material, a first belt conveyor for transporting the first concrete material and feeding it into the mixer, a second belt conveyor for transporting the second concrete material and feeding it into the mixer, a screw feeder for transporting the third concrete material and feeding it into the mixer, a water supply device for supplying water to the mixer, and a control device having a production condition storage unit for storing the measurement values ​​of the load cell, the mixer being disposed at one end of the unit base in the longitudinal direction and a control device having a production condition storage unit for storing the measurement values ​​of the load cell, the control device being disposed at the other end of the unit base in the longitudinal direction. The on-site mixing production unit disclosed has a sub-hopper disposed therebetween, the first main hopper and the second main hopper disposed in parallel in the short side direction of the unit table between the sub-hopper and the mixer, the first belt conveyor and the second belt conveyor extending from below the first main hopper and below the second main hopper toward the mixer while being spaced apart from each other, and the screw feeder extending from below the sub-hopper through a gap between the lower part of the first main hopper and the lower part of the second main hopper, between the first belt conveyor and the second belt conveyor, toward the mixer. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-43028 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a kneaded material manufacturing plant which allows easy maintenance of the equipment. [Means for solving the problem]

[0005] The kneaded material manufacturing plant of the present invention has a storage container for storing a hydraulic hardening material, and a mixing device for mixing materials containing the hardening material supplied from the storage container, and the storage container is located above the mixing device and is installed in a position close to the mixing device in a planar view.

[0006] Preferably, the storage container is placed at a position where at least a portion of the storage container overlaps with the mixing device in a plan view.

[0007] Preferably, the hydraulic hardening material is cement, and further comprises a transport section located vertically between the storage container and the mixing device for transporting cement from the storage container to the mixing device, and a plate-shaped guide section installed in a position to block part of the inlet of the transport section, and the guide section is installed with the plate surface horizontal or with the plate surface sloping downward from the upstream side to the downstream side in the cement transport direction.

[0008] Preferably, the mixing device is located below the storage container and the transport unit and is installed in a spaced relationship with the storage container and the transport unit.

[0009] Preferably, the apparatus further comprises a first frame supporting the storage container and the conveying section, and a second frame positioned below the first frame and supporting the mixing device, the first frame and the second frame being detachably connected to each other.

[0010] In addition, a manufacturing method for a kneaded material manufacturing plant according to the present invention includes a step of installing a storage container for storing a hydraulic hardening material in a first frame, a step of installing a mixing device in a second frame for mixing a material containing the hydraulic hardening material supplied from the storage container, and a step of overlapping and connecting the first frame to the second frame, in which in the connecting step, the first frame and the second frame are connected so that the storage container is located above the mixing device and the mixing device and the storage container are positioned close to each other in a planar view. Effect of the Invention

[0011] According to the present invention, equipment maintenance is easy, and therefore the maintenance work time can be reduced. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view illustrating an assembled mixing plant 1 according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a side view illustrating the mixing plant 1 after assembly. [Diagram 3] FIG. 2 is a plan view illustrating the mixing plant 1 after assembly. [Figure 4] 10 is a diagram illustrating an example of the configuration of an introduction section 43. FIG. [Diagram 5] FIG. 1 is a diagram illustrating a mixing plant 1 before assembly. [Figure 6] FIG. 2 is a diagram illustrating a detailed configuration of a cement supply section 40 in the mixing plant 1. [Figure 7] This is a schematic diagram explaining the flow path of cement S. [Figure 8] 4 is a flowchart illustrating a manufacturing method (S10) of the mixing plant 1 in the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] First, the background of the present invention will be described. At concrete pouring work sites, there are some sites where concrete before pouring (so-called ready-mixed concrete; ready-mixed concrete) made by kneading aggregate, cement, water, and admixtures cannot be transported from a ready-mixed concrete manufacturing plant to the pouring site. For example, there are repair work sites, disaster recovery work sites, construction sites on remote islands where there is no ready-mixed concrete manufacturing plant, nighttime road and railway construction sites, construction sites where mixer trucks cannot enter, and construction sites on mountainous or steep slopes. At such pouring work sites, mobile production plants that produce ready-mixed concrete on-site are adopted, and for example, a mobile production plant that can mix concrete on-site has been proposed (Patent Document 1). In the mobile production plant disclosed in Patent Document 1, the cement input hopper and the mixer are installed at different positions separated from each other in a plan view, so that a screw feeder equipped with a long screw blade needs to be adopted. However, when working in rainy weather, the cement inside the screw feeder is prone to solidification because it is wet with rainwater. Therefore, it is necessary to discharge all the cement remaining in the screw feeder after the work is completed, but if the screw feeder is long, this discharge operation takes time. Therefore, by bringing the cement feeding hopper and the mixer closer together and shortening the distance the cement is transported, the screw feeder can be made shorter, thereby shortening the time it takes to discharge the cement.

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples. Next, the configuration of a mixing plant 1 in this embodiment will be described with reference to FIGS. FIG. 1 is a perspective view illustrating an assembled mixing plant 1. As shown in FIG. FIG. 2 is a side view illustrating the mixing plant 1 after assembly. FIG. 3 is a plan view illustrating the mixing plant 1 after assembly. FIG. 4 is a diagram illustrating an example of the configuration of the introduction section 43. As shown in FIG. 1 to 4, the mixing plant 1 is an example of a mixed material manufacturing plant, and is an apparatus for mixing a hardened material containing cement, which is a hydraulic hardening agent, or gypsum. The mixing plant 1 of this example produces ready-mixed concrete by mixing materials for concrete, mortar, or cement paste using cement as a hardening agent, specifically, aggregate, cement, water, admixtures, etc. The mixing plant 1 is an on-board manufacturing device that is large enough to be loaded on the bed of a truck. In the assembled mixing plant 1, the short side W of the mixing plant 1 is 1.5 m or more and 1.8 m or less, and the long side L of the mixing plant 1 is 3.2 m or more and 3.8 m or less. The height H1 of the mixing plant 1 is 2.4 m or more and 3.5 m or less, and the height H2 of the mixing plant 1 is 2.3 m or more and 2.5 m or less. The weight of the mixing plant 1 in the assembled state is, for example, 3.8 t or less, specifically, 2.0 t or more and 3.0 t or less, more specifically, 2.0 t or more and 2.7 t or less. The kissing plant 1 of this example is configured to be disassembled so that it has a size and weight that can be loaded and transported on the bed of a 3-ton to 4-ton truck, and the details will be described later with reference to FIG. 5.

[0015] The mixing plant 1 includes a frame 2, a supply facility 4, a detection unit 6, a mixer 8, and related facilities 9. The supply facility 4, the detection unit 6, the mixer 8, and related facilities 9 are installed on the frame 2. <Frame 2> The frame 2 includes a first frame 20 and a second frame 22. The first frame 20 and the second frame 22 are each an independent structure and are frameworks formed by combining shaped steel. The first frame 20 and the second frame 22 are detachably connected to each other. The first frame 20 supports at least the cement supply section 40 (cement supply hopper 400 and screw conveyor 402) described below. The first frame 20 also includes a safety fence 202. The safety fence 202 is detachably installed around the periphery of an inlet 400A of the cement supply hopper 400 described below. The safety fence 202 prevents a worker working in the cement supply hopper 400 from falling. The safety fence 202 may be of a lattice type or a guard pipe type, and is of the guard pipe type in this example. In addition, the second frame 2 is located below the first frame 20 and supports at least the mixer 8 .

[0016] <Supply equipment 4> The supply equipment 4 is equipment that supplies cement, aggregate, water, admixtures, etc. to a mixer 8 described later. The supply equipment 4 includes a cement supply unit 40, an aggregate supply unit 41, an introduction unit 43, and a solvent supply unit 45. (Cement supply unit 40) The cement supply unit 40 is a device that supplies the cement S to the mixer 8. The cement supply unit 40 includes a hopper 400 for introducing cement and a screw conveyor 402. The cement feeding hopper 400 is an example of a storage container according to the present invention, and is a storage container for storing cement S as a hydraulic hardening material. The cement feeding hopper 400 is located above the mixer 8, and is installed in a position adjacent to the mixer 8 in the plan view illustrated in Fig. 3. The cement feeding hopper 400 of this example is installed in a position where at least a portion overlaps with the mixer 8 in the plan view, and feeds the cement S into the mixer 8 via an introduction section 43, which will be described later.

[0017] The screw conveyor 402 is an example of a transport section according to the present invention, and is a transport device that transports the cement S charged into the cement charging hopper 400 from the cement charging hopper 400 to the mixer 8. The screw conveyor 402 is located between the cement charging hopper 400 and the mixer 8 in the height direction (vertical direction) in the side view illustrated in Fig. 1 and Fig. 2, and is installed horizontally or inclined upward from the upstream side to the downstream side of the transport path of the cement S. The screw conveyor 402 conveys the cement S in a horizontal direction or an upwardly inclined direction from the upstream side to the downstream side of the conveying path of the cement S. The screw conveyor 402 in this example conveys the cement S in an upwardly inclined direction. The detailed configuration of the cement supply unit 40 will be described later.

[0018] (Aggregate supply section 41) The aggregate supplying unit 41 is a device that supplies sand and gravel to the mixer 8. The aggregate supplying unit 41 includes a sand supplying unit 410 and a gravel supplying unit 420. The sand supplying section 410 is a device that supplies sand to the mixer 8, and includes a sand charging hopper 412 and a sand belt conveyor 414, as shown in FIG. The sand charging hopper 412 is located in the upper unit 10 and is a storage container for storing sand. The sand charging hopper 412 is located on the opposite side of the mixer 8 across the cement charging hopper 400 in the longitudinal direction in the plan view illustrated in FIG. 3, and is installed adjacent to the gravel charging hopper 422 and the cement charging hopper 400. The sand charging hopper 412 includes an inlet 412A for charging sand and a discharge outlet 412B for discharging the sand charged from the inlet 412A to the outside of the hopper 412. The sand charging hopper 412 supplies the sand discharged from the discharge outlet 412B to the sand belt conveyor 414. The sand belt conveyor 414 is located in the lower unit 12 and is a transport device that transports the sand stored in the sand charging hopper 412 to the mixer 8. The sand belt conveyor 414 has a source located at the discharge outlet 412B of the sand charging hopper 412 and a destination located at the introduction section 43.

[0019] The gravel supplying section 420 is a device that supplies gravel to the mixer 8, and includes a gravel input hopper 422 and a gravel use belt conveyor 424, as shown in FIG. The gravel input hopper 422 is located in the upper unit 10 and is a storage container for storing gravel. The gravel input hopper 422 is located on the opposite side of the cement input hopper 400 from the mixer 8 in the longitudinal direction in the plan view illustrated in FIG. 3, and is installed adjacent to the sand input hopper 412 and the cement input hopper 400. The gravel input hopper 422 includes an input port 422A for inputting gravel and a discharge port 422B for discharging the gravel input from the input port 422A to the outside of the hopper 422. The gravel input hopper 422 supplies the gravel discharged from the discharge port 422B to the gravel-use belt conveyor 424. The gravel belt conveyor 424 is located in the lower unit 12 and is a transport device that supplies gravel stored in the gravel input hopper 422 to the mixer 8. The gravel belt conveyor 424 has a source located at the discharge outlet 422B of the gravel input hopper 422 and a destination located at the introduction section 43.

[0020] (Introduction 43) The introduction section 43 is a member that introduces the transported cement S, sand, and gravel into the mixer 8. As illustrated in FIG. 4, the introduction section 43 includes an introduction section 43A that introduces the sand and gravel, and an introduction section 43B that introduces the cement S. The introduction section 43A introduces the transported sand and gravel into the mixer 8. The introduction section 43A includes a sand receiving section 43A14 and a gravel receiving section 43A24. The sand receiving section 43A14 and the gravel receiving section 43A24 are connected to the introduction section 43A so that their internal spaces are continuous. Therefore, the sand and gravel received in the sand receiving section 43A14 and the gravel receiving section 43A24 flow toward the introduction section 43A. The sand receiving section 43A14 receives the sand supplied by the sand conveyor belt 414 without spilling any of it. The gravel receiving section 43A24 receives the gravel supplied by the gravel belt conveyor 424 without dropping any of it. The introduction section 43B also introduces the cement S that has fallen from the screw conveyor 402 into the mixer 8. The introduction section 43B is, for example, a flexibly deformable cylindrical member, with one end connected to the screw conveyor 402 and the other end connected to the inlet 8B. In this example, the introduction section 43B is a cylindrical member made of canvas. Even if the load cell 60 detects the weight of the cement, the introduction section 43B is within a range that does not affect the weighing result. The introduction section 43B prevents the powdered cement S from spilling or scattering during the process of transferring it. It should be noted that the introduction section 43B can be omitted if it is not necessary.

[0021] (Solvent supply unit 45) The solvent supply unit 45 is equipment that supplies liquid that serves as a solvent for ready-mixed concrete to the mixer 8, and includes a storage tank 450 and a supply pipe 452 as illustrated in FIG. 2. The solvent supply unit 45 in this example supplies water stored in the storage tank 450 to the inside of the mixer 8. The solvent supply unit 45 supplies water at the timing when the aggregate, cement S, admixtures, etc. are being mixed in the mixer 8. This allows the mixing time to be shortened by measuring and adding the water to be added while mixing. The storage tank 450 is a container for storing water that serves as a solvent for ready-mixed concrete. The supply pipe 452, which is not shown, is a pipe for supplying a solvent from the storage tank 450 to the mixer 8, and connects the storage tank 450 and the mixer 8 so as to be able to supply water.

[0022] <Detection unit 6> The detection unit 6 detects the weight of the hardened material fed into the mixer 8 and the flow rate of the solvent fed into the mixer 8. The detection unit 6 includes a load cell 60 and a flow rate sensor 62. The load cell 60 is a weight sensor that detects the weight of the hardened material put into the mixer 8. The load cell 60 is installed on the second frame and supports the mixer 8 to which the introduction part 43A is connected. The load cell 60 detects the weight of the hardened material to be kneaded other than water, specifically the weight of each material such as aggregate, cement, admixture, or admixture. The load cell 60 notifies the control panel 90 of the related equipment 9 of the detection result. Although not shown, the flow rate sensor 62 detects the amount of water supplied from the storage tank 450 to the mixer 8. The flow rate sensor 62 notifies the control panel 90 of the related equipment 9 of the detection result of the amount of water supplied to the mixer 8. In this example, since water is supplied into the mixer 8 at the timing when the aggregate and the cement S are mixed in the mixer 8, it is preferable that the flow rate sensor 62 detects the amount of water supplied.

[0023] <Mixer 8> The mixer 8 is an example of a mixing device according to the present invention, and is a device for mixing materials for concrete, mortar, or cement paste, which are cement-based hardened bodies, specifically, hardened body materials such as aggregate, cement, water, and admixtures. The mixer capacity of the mixer 8 in this example is 200 L from the viewpoint of miniaturization, but is not limited to this, and can be changed to a mixer with a larger capacity. The mixer 8 is located below the cement supply section 40 (cement supply hopper 400 and screw conveyor 402) and the introduction section 43, and is installed in a position adjacent to the supply hopper 400 in the plan view illustrated in FIG. 3. In this example, the mixer 8 is installed in a position where at least a portion of the mixer 8 overlaps with the supply hopper 400 in the plan view. As illustrated in FIG. 2, the mixer 8 is installed on the second frame 22 in a state separated from the cement supply section 40 (cement supply hopper 400 and screw conveyor 402). The mixer 8 is not in contact with the cement supply section 40 so that it is not detected by the load cell 60. The mixer 8 also includes an inlet 8A for introducing aggregate and an inlet 8B for introducing cement S. The inlet 8A is connected to and integrated with the introduction section 43A, and is provided with an inlet for sand (not shown as it is inside the introduction section 43A) and an inlet for sand (not shown as it is inside the introduction section 43A). The inlet B has a shape in which the periphery of the inlet B protrudes so that the introduction section 43B can be connected, and is detachably connected to the introduction section 43B.

[0024] <Related Equipment 9> The associated equipment 9 includes a control panel 90 and a power panel 92 . The control panel 90 is a control device including devices for automatically controlling the supply equipment 4 (screw conveyor 402, sand belt conveyor 414, gravel belt conveyor 424, and solvent supply unit 45), the detection unit 6 (load cell 60 and flow rate sensor 62), and the mixer 8. The control panel 90 automatically operates each device by a predetermined sequence control. The power panel 92 is a power supply equipment that supplies power to operate the supply equipment 4 (screw conveyor 402, sand belt conveyor 414, gravel belt conveyor 424, solvent supply section 45), detection section 6 (load cell 60 and flow sensor 62), mixer 8, and control panel 90.

[0025] FIG. 5 is a diagram illustrating the mixing plant 1 before assembly. 5, for example, when transporting to a construction site or during maintenance, the mixing plant 1 can be separated into two units (an upper unit 10 and a lower unit 12) in the height direction (vertical direction). The mixing plant 1 is connected by fastening bolts and nuts, and can be separated by releasing the fastening bolts and nuts. The upper unit 10 includes a cement injection hopper 400 and a screw conveyor 402 (cement supply section 40), a sand injection hopper 412 (sand supply section 410), and a gravel injection hopper 422 (gravel supply section 420), which are installed on the first frame 20. The weight of the upper unit 10 is between 0.9 t and 1.1 t, and is about 1 t in this example. The lower unit 12 includes a sand belt conveyor 414 (sand supply section 410), a gravel belt conveyor 424 (gravel supply section 420), an introduction section 43A (introduction section 43), a solution storage tank 450 (medium supply section 45), a load cell 60 (detection section 6), a mixer 8, a control panel 90 and a power panel 92 (related equipment 9), and is installed on the second frame 22. The weight of the lower unit 12 is 1.4 t or more and 1.6 t or less, and is about 1.5 t in this example. In this way, the mixing plant 1 is configured to be separable into an upper unit 10 and a lower unit 12 so that it can be placed on the bed of a 3-ton to 4-ton truck, thereby making it lightweight and allowing for safe loading and unloading operations using a crane.

[0026] Fig. 6 is a diagram illustrating a detailed configuration of the cement supply unit 40 in the mixing plant 1. Fig. 6(A) is a schematic cross-sectional view illustrating the detailed configuration of the cement supply unit 40, and Fig. 6(B) is a schematic view illustrating the inside of a cement charging hopper 400. As shown in Fig. 6(A), the cement supply section 40 is located above the mixer 8 in the height direction and is separated from the mixer 8 (separation distance D) in a non-contact state. This allows the load cell 60 to accurately detect the weight of the hardened material fed into the mixer 8. The cement feeding hopper 400, the screw conveyor 402, and the introduction section 43B have continuous internal spaces. Specifically, the cement feeding hopper 400 is connected to the screw conveyor 402 so that the fed cement S can flow, and the screw conveyor 402 is connected to the introduction section 43B so that the cement S can flow.

[0027] The discharge port 402B of the screw conveyor 402 and the inlet 8B of the mixer 8 are positioned opposite each other in the vertical direction. The discharge port 402B and the inlet 8B are positioned such that the cement S discharged from the cement supply unit 40 falls vertically and is fed into the mixer 8. In other words, the cement discharge port of the cement supply unit 40 and the inlet 8B of the mixer 8 are positioned opposite each other in the vertical direction.

[0028] (Guidance part 4000) The cement supply section 40 includes a guide section 4000. The guide section 4000 is detachably installed inside the cement supply section 40. The guide section 4000 is plate-shaped and is provided at a position that blocks a part of the inlet of the screw conveyor 402 (the discharge outlet of the cement supply hopper 400). The guide section 4000 is disposed at a position and range that corresponds to the discharge outlet 402B and the inlet 8B of the mixer 8 across the screw conveyor 402. As illustrated in FIG. 6(B), the guide section 4000 blocks an area of ​​1 / 3 to 3 / 4 of the inlet of the screw conveyor 402, and the discharge outlet 402B and the inlet 8B of the mixer 8 are located within this blocked area. The guide section 4000 blocks a part of the inlet of the screw conveyor 402 to prevent the cement S from falling vertically and flowing into the inlet 8A of the mixer 8. The guide section 4000 is installed with its plate surface horizontal or with its plate surface inclined downward from the upstream side to the downstream side in the conveying direction of the cement S. Furthermore, the guiding unit 4000 diverts the conveying path of the cement S from the upstream side to the downstream side in the conveying direction. Specifically, the guiding unit 4000 changes the conveying direction of the cement S from the vertical direction to the horizontal direction or to a direction inclined relative to the horizontal direction. The guiding unit 4000 in this example changes the conveying direction of the cement S from a vertical path to a downward inclined path. The guiding unit 4000 is one example of a guiding unit according to the present invention.

[0029] Next, the flow path of the cement S in the mixing plant 1 will be described with reference to FIG. FIG. 7 is a schematic diagram illustrating the flow path of the cement S. As illustrated in FIG. 7, a worker puts cement S packed in a cement bag or a FIBC into a cement input hopper 400. The put-in cement S flows from the cement input hopper 400 to the screw conveyor 402. At this time, a part of the cement S flows from the vertical direction in a downward inclined direction along the plate surface of the guide section 4000 (path F1), and then flows in a vertical direction (path F2). In this way, the cement S moves to the screw conveyor 402 via the guide section 4000. Then, the cement S moves from the upstream side to the downstream side in an upward inclined direction by the screw conveyor 402 (path F3), and drops and moves vertically from the screw conveyor 402 to the mixer 8 via the discharge port 402B and the introduction section 43B (path F4). In this way, by disposing the guiding section 4000 inside the cement supply section 40 and redirecting the path, it is possible to prevent the cement S from being directly fed from the cement feeding hopper 400 to the mixer 8 via the shortest vertical path. This allows the load cell 60 to accurately detect the weight of the cement S. In addition, the guiding section 4000 can prevent a worker from being entangled by partially blocking the screw conveyor 402.

[0030] Next, a manufacturing method of the mixing plant 1 will be described with reference to FIG. FIG. 8 is a flow chart illustrating a manufacturing method (S10) of the mixing plant 1 in this embodiment. As illustrated in FIG. 8, in step 100 (S100), a worker installs a cement injection hopper 400 and a screw conveyor 402 (cement supply section 40), a sand injection hopper 412 (sand supply section 410), and a gravel injection hopper 422 (gravel supply section 420) on the first frame 20, thereby producing the upper unit 10 illustrated in FIG. 5.

[0031] In step 102 (S102), the worker installs the sand conveyor belt 414 (sand supply section 410), the gravel use conveyor belt 424 (gravel supply section 420), the storage tank 450 (solvent supply section 45), the load cell 60 (detection section 6), the mixer 8 connected to the introduction section 43A (introduction section 43), the control panel 90 and the power panel 92 (related equipment 9) on the second frame 22, and produces the lower unit 12 illustrated in Figure 5.

[0032] In step 104 (S104), workers transport the upper unit 10 and the lower unit 12 to the work site by truck. At the work site, workers stack the upper unit 10 on the lower unit 12 and connect them with bolts and nuts to fabricate the mixing plant 1 illustrated in Figs. 1 to 3. In the fabricated mixing plant 1, the cement feeding hopper 400 is located above the mixer 8, and the mixer 8 and the cement feeding hopper 400 are positioned to overlap in the plan view illustrated in Fig. 3.

[0033] As described above, according to the mixing plant 1 of this embodiment, the length of the screw conveyor can be shortened by shortening the cement transport distance by bringing the cement charging hopper and the mixer closer to each other. This shortens the time required to discharge the cement remaining in the screw conveyor after construction, and as a result, the maintenance work time can be reduced. In addition, by shortening the screw conveyor, maintenance is easy even if the cement solidifies in the screw conveyor. In addition, the manufacturing cost is reduced. Furthermore, since the mixing plant 1 can be divided into two units, it can be made lighter and loading / unloading operations can be performed safely using a crane. [Explanation of symbols]

[0034] 1. Mixing Plant 2 Frames 20 1st Frame 22 2nd Frame 4 Supply equipment 40 Cement Supply Section 400 Cement input hopper 4000 Guidance part 402 Screw Conveyor 41 Aggregate Supply Section 410 Sand supply section 412 Sand injection hopper 414 Sand belt conveyor 420 Gravel Supply Department 422 Gravel Feeding Hopper 424 Gravel Belt Conveyor 43 Introduction 45 Solvent Supply Section 6. Detection unit 60 Load Cells 8. Mixer 9 Related Facilities

Claims

1. A storage container for storing hydraulic hardening materials; A mixing device that mixes the material containing the hardener supplied from the storage container; having The storage container is located above the mixing device and is installed in a position adjacent to the mixing device in a plan view. Mixture manufacturing plant.

2. The storage container is disposed at a position where at least a portion of the storage container overlaps with the mixing device in a plan view. The plant for producing a kneaded product according to claim 1.

3. The hydraulic hardening material is cement. A conveying section is located between the storage container and the mixing device in a vertical direction and conveys cement from the storage container to the mixing device; a guide portion having a plate shape and disposed at a position to block a part of the input port of the conveying portion; and The guide portion is installed with the plate surface horizontal or with the plate surface inclined downward from the upstream side to the downstream side in the cement conveying direction. The plant for producing a kneaded product according to claim 2.

4. The mixing device is located below the storage container and the conveying unit and is installed in a state spaced apart from the storage container and the conveying unit. The plant for producing a kneaded product according to claim 3.

5. a first frame supporting the storage container and the carrier; a second frame located below the first frame and supporting the mixing device; and The first frame and the second frame are detachably connected to each other. The plant for producing a kneaded product according to claim 4.

6. A step of placing a storage container for storing a hydraulic hardening material on the first frame; A step of installing a mixing device on a second frame for mixing a material including a hydraulic hardening material supplied from the storage container; overlapping and connecting the first frame to the second frame; having In the step of connecting, the first frame and the second frame are connected so that the storage container is located above the mixing device and the mixing device and the storage container are adjacent to each other in a plan view. A manufacturing method for a kneaded material manufacturing plant.

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