JP2010229684A - Apparatus for mixing sediment collected on site - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for mixing sediment collected on site, which can shorten the time for recovery by facilitating replacement operations and taking measures such as maintenance/inspection intended for only a specific agitator in an out-of-order state etc. <P>SOLUTION: This apparatus for mixing the sediment collected on site includes: a body portion 9 which has a mixing cylinder 2 provided with a bottom for guiding the downflow of a mixing material and a plurality of portal frames 12 arranged in a bottom straddling direction on the bottom at a spacing in the direction of the downflow of the mixing material; and a plurality of unit bodies 10 with the agitator, which each comprise the agitator and a motor 29 for driving the agitator, which are detachably attached between the portal frames of the body portion, and which partition and form a conveyance passage P by covering the bottom. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is an on-site soil and sand mixing device that is easy to replace, can take measures such as maintenance and inspection only for a specific stirrer that has failed, and can shorten the time to recovery. About.

  Patent Document 1 is known as this type of locally collected earth and sand mixing device. Patent Document 1 “In-situ Composite Material Mixing Device” is provided with a carry-in port at the upper end and a carry-out port at the lower end, and a plurality of flow-down conveyance bodies installed in an inclined manner, arranged in parallel perpendicular to the flow-down conveyance body, Agitating blades in which paddles are radially planted at predetermined intervals in the axial direction and the peripheral direction around the rotating shaft, a falling weir plate and a plurality of stirring blades installed at a rear position in an inclined direction corresponding to the stirring blades It is comprised from the stirring blade drive machine which rotates in the direction opposite to an inclination direction, connecting.

  In Patent Document 1, a plurality of stirring blades are sequentially connected via a chain, and all the stirring blades are rotationally driven collectively by driving the chain with a single stirring blade drive. In addition, the falling transport body is configured by sequentially connecting hollow box-shaped blocks provided with stirring blades.

JP 2005-52988 A

  If any one of the stirring blades fails, the other stirring blades that have not failed cannot be driven until the repair of the failed stirring blade is completed, and it takes time to restore the apparatus. There was a problem.

  Further, for quick recovery, it is conceivable to remove the block on which the failed stirring blade is attached from the flow-down carrier and replace it with another block. However, if one of the blocks is removed from the flow-down conveyance body, the flow-down conveyance body is divided into pieces without being able to maintain the original form such as being divided into two. For this reason, even when the block is exchanged, it is necessary to perform a complicated operation of disassembling / assembling the flow-down carrier, and there is a problem that it takes time to restore the apparatus.

  The present invention was devised in view of the above-mentioned conventional problems, is easy to replace, and can take measures such as maintenance and inspection only for a specific stirrer that has failed, etc. An object of the present invention is to provide an on-site sampling soil mixing device that can shorten the time required for this.

  The field sampling earth and sand mixing apparatus according to the present invention forms a hollow conveyance passage, and is inclined from the upper end to the lower end, and a plurality of agitators driven by a motor are arranged along the inclination direction in the conveyance passage. The mixed material is charged into the transport passage from the upper end of the mixing cylinder arranged in multiple stages, the mixed material flowing down while being mixed in the transport passage is stirred by the stirrer, and mixed and stirred in the transport passage In the field-collected earth and sand mixing device for discharging the mixed material from the lower end of the mixing cylinder, the mixing cylinder is disposed at the bottom with a gap in the flowing direction of the mixed material and a bottom that guides the flowing of the mixed material. A main body having a plurality of portal frames arranged in a direction straddling the main body, the agitator and the motor for driving the agitator, and detachably mounted between the portal frames of the main body Over the bottom Characterized in that it is formed from a plurality of agitator with unit body defining a conveying path.

  Instead of at least one unit body with a stirrer, a blank unit body that covers the bottom portion and defines the conveyance path is detachably mounted between the portal frames on the main body portion. And

  In the field-collected earth and sand mixing device according to the present invention, replacement work is easy, and it is possible to take measures such as maintenance and inspection only for a specific stirrer that has failed, etc., and shorten the time to recovery can do.

It is a whole side view showing one suitable embodiment of the field collection earth and sand mixing device concerning the present invention. It is a front view which shows the inclination installation state of the field collection earth and sand mixing apparatus shown in FIG. It is a front view which shows the sideways support state of the field collection earth and sand mixing apparatus shown in FIG. It is a side view of the cylinder part for mixing of the field collection earth and sand mixing apparatus shown in FIG. It is a top view of the cylinder part for mixing of the field collection earth and sand mixing apparatus shown in FIG. It is a side view of the main-body part of the cylinder part for mixing of the field collection earth and sand mixing apparatus shown in FIG. It is a top view of the main-body part of the cylinder part for mixing of the field collection earth and sand mixing apparatus shown in FIG. It is a partial bottom view of the main-body part of the cylinder part for mixing of the field collection earth and sand mixing apparatus shown in FIG. It is a side view of the unit body with a stirrer of the cylinder part for mixing of the field collection earth and sand mixing apparatus shown in FIG. It is a front view of the unit body with a stirrer of the cylinder part for mixing of the field collection earth and sand mixing apparatus shown in FIG. It is a top view of the unit body with a stirrer of the cylinder part for mixing of the field sampling soil mixing apparatus shown in FIG. It is a side view for demonstrating the 1st step of the maintenance work of the field collection earth and sand mixing apparatus shown in FIG. It is a side view for demonstrating the 2nd step of the maintenance operation | work of the local collection earth and sand mixing apparatus shown in FIG. It is a side view for demonstrating the 3rd step of the maintenance operation | work of the local collection earth and sand mixing apparatus shown in FIG. It is a side view for demonstrating the 4th step of the maintenance operation | work of the local collection earth and sand mixing apparatus shown in FIG. It is a side view for demonstrating the 5th step of the maintenance operation | work of the field collection earth and sand mixing apparatus shown in FIG. It is a side view which shows the modification of the local collection earth and sand mixing apparatus which concerns on this invention. It is a side view which shows the removal state of the blank unit body in the modification shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a locally collected soil mixing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. As shown in FIGS. 1 to 11, the on-site collected soil mixing apparatus 1 according to the present embodiment includes a mixing cylinder portion 2. The mixing cylinder portion 2 is formed in a hollow cylindrical shape as a whole, and thereby a hollow conveyance passage P is defined in the inside.

  The mixing cylinder 2 is inclined from the upper end to the lower end by a support device 3 described later. At the upper end of the mixing cylinder portion 2, a hopper 5 that receives the mixed material dropped from the belt feeder that is the carrying-in means 4 is provided. A chute 7 is provided at the lower end of the mixing cylinder portion 2 to discharge the mixed and agitated mixed material toward the belt scale as the carry-out means 6. The mixed material received by the hopper 5 passes through the conveyance path P and is discharged from the chute 7.

  A plurality of agitators 8 are provided in the conveyance path P of the mixing cylinder portion 2. These stirrers 8 are arranged in multiple stages along the inclination direction of the transport path P. The mixing cylinder portion 2 causes the mixed material introduced from the hopper 5 into the conveyance path P to flow down by the action of gravity, mixes the mixed material in the flow-down process, and further mixes the mixed material flowing down while being mixed. The mixed material that has been stirred at 8 and mixed and stirred in the conveyance path P is discharged from the chute 7.

  As shown in detail in FIGS. 6 to 11, the mixing cylinder portion 2 is mainly formed of a main body portion 9 and a plurality of agitator-equipped unit bodies 10 that are detachably attached to the main body portion 9. The main body 9 mainly includes a hopper 5, a chute 7, a plate-like bottom 11 formed between the hopper 5 and the chute 7 along the length direction of the mixing cylinder 2, and a bottom 11. And a plurality of gate-type frames 12 which are set up and provided.

  The bottom portion 11 is formed in a shallow groove shape that guides the flow of the mixed material by raising the both end edges in the width direction to form a raised portion. A bottom connection flange portion 13 is formed on the rising portion so as to project outward from the upper end thereof.

  Further, a support beam 15 with a connecting bracket 14 is provided on the bottom portion 11 on the side of the chute 7 serving as the lower end of the mixing cylinder portion 2 so as to protrude from both sides in the width direction. In the hopper 5 which is the upper end of the mixing cylinder portion 2, a support bracket 16 is provided on the side where the coupling bracket 14 is disposed, and a suspension bracket 17 is provided on the side opposite to the support bracket 16.

  The portal frame 12 has a pair of leg portions joined to both edges in the width direction of the bottom portion 11, and a horizontal portion is disposed in a direction straddling the bottom portion 11, that is, in the width direction of the bottom portion 11. These portal frames 12 are arranged at equal intervals in the flow direction of the mixed material flowing down in the conveyance path P, in other words, in the length direction of the bottom portion 11. The portal frame 12 is configured such that the uppermost part and the lowermost part adjacent to the hopper 5 and the chute 7 are different from those arranged between them.

  The uppermost and lowermost portal frame 12 is formed by joining a U-shaped plate member 12 a to each of the hopper 5 and the chute 7, and also serves as a partition with the hopper 5 and the chute 7. The other gate-shaped frame 12 has a U-shaped channel-shaped frame structure by joining a pair of U-shaped plate members 12a to both sides of a member 12b assembled in a gate shape. Any U-shaped plate member 12 a has a U-shaped connecting flange portion 18 at its periphery. In the illustrated example, four portal frames 12 are provided.

  Further, the bottom portion 11 is formed between the portal frame 12 and is formed with inspection ports 19, each of which is provided on the bottom surface of the bottom portion 11 opposite to the top surface of the bottom portion 11 facing the conveyance path P. It is opened and closed by an inspection door 21 that is opened and closed by a cylinder type switch 20. Preferably, the inspection port 19 is set immediately below the stirrer 8.

  Each unit 10 with a stirrer includes a housing 22 having a gate-shaped cross section that covers the bottom 11 and defines a conveyance path P. Specifically, the housing 22 corresponds to the pair of leg portions of the portal frame 12, and corresponds to the pair of side plates 22 a positioned at both edges in the width direction of the bottom portion 11, and the horizontal portion of the portal frame 12. The top plate 22b spanned between the side plates 22a is assembled in a gate shape, and is joined to the U-shaped connecting flange portion 18 of the portal frame 12 at the front and rear ends along the length direction of the bottom portion 11. A U-shaped mounting flange portion 23 is formed, and a bottom mounting flange portion 24 to be joined to the bottom connecting flange portion 3 of the bottom portion 11 is formed at the lower end of the side plate 22a.

  Between the side plates 22a, the stirrer 8 is rotatably provided so as to be positioned in the transport path P by a bearing 25 provided on each of the side plates 22a. The stirrer 8 includes a rotary shaft 26 supported at both ends by a bearing 25, and a paddle 27 that is integrally joined to the rotary shaft 26 by welding or the like in a radial arrangement and stirs while stirring the mixed material. . One side plate 22 a is provided with a pedestal 28 that projects outward, and a motor 29 that drives the agitator 8 is mounted on the pedestal 28. The motor 29 is connected to one end of the rotating shaft 26 of the stirrer 8 via a gear box 30 and a coupling 31. Thus, each unit body 10 with a stirrer is provided with the motor 29 which drives each stirrer 8 independently.

  The top plate 22b of each unit with agitator 10 is provided with a top opening / closing lid 32 that opens and closes the top opening. Moreover, the side part 22a of each unit body 10 with a stirrer is provided with the side part opening / closing lid | cover 33 which opens and closes side part opening. By removing these open / close lids 32 and 33, the inside of the mixing cylinder portion 2 can be inspected and maintained. Further, the top plate 22b is provided with a weir member 34 that collides with the lower surface facing the conveyance path P with the mixed material that is scraped and scattered by the stirrer 8 and returns the mixed material to the flow.

  The unit body 10 with a stirrer is detachably mounted between the gate-type frames 12 of the main body 9, so that the stirrer 8 is arranged in multiple stages in a series of hollow transport passages P extending from the hopper 5 to the chute 7. The mixing cylinder portion 2 is configured. Each unit 10 with a stirrer is attached to the main body 9 by fastening the mounting flanges 23 and 24 to the connecting flanges 13 and 18 of the main body 9 with bolts and nuts.

  In the mixing cylinder portion 2 configured in this way, the mixed material flowing down in the conveyance path P is provided downstream of the first stirrer 8 arranged in the uppermost stage along the flowing direction of the mixed material. A water supply unit 35 for supplying water is provided. In this embodiment, the water supply part 35 is comprised by the porous pipe located in the conveyance path P by handing between a pair of leg parts of the portal frame 12, and this pipe is used as a water supply source. By connecting, water is sprinkled from the pipe into the transport passage P.

  In the example of illustration, the water supply part 35 is provided in the 2nd gate-type flame | frame 12 following the top gate-type flame | frame 12, in other words, the 1st stirrer 8 provided in the uppermost stage. It is provided on the upstream side of the stirrer 8 located on the downstream side of the mixed material flow direction. The water supply part 35 may be provided not only in one place but in multiple places as needed (refer FIG. 17 etc.). In the drawing, reference numeral 36 denotes an angle meter that is provided in the mixing cylinder portion 2 and displays an inclination angle of the mixing cylinder portion 2.

  The mixing cylinder portion 2 is supported in an inclined state by the support device 3. The support device 3 is mainly installed on-site and has a support frame 37 on which the mixing cylinder portion 2 is mounted, and a base end (lower end) is rotatably coupled to the support frame 37 and a front end (upper end) is mixed. A pair of tilting fixed-length pillars 38 that are rotatably pin-coupled to the support bracket 16 on the upper end side of the cylinder section 2 and can be tilted, and a support frame 37 and a connecting bracket 14 on the lower end side of the mixing cylinder section 2 have both ends. A pair of support pillars 39 that are pin-coupled and are provided between the support frame 37 and the lower end side of the mixing cylinder 2 so as to be tiltable and detachable, and one end of the support frame 37 is rotatably coupled to the support frame 37. The other end is rotatably pin-coupled to the connecting bracket 14 on the lower end side of the mixing cylinder portion 2 and is arranged in a direction intersecting with the directions of the fixed-length pillar 38 and the support pillar 39, and the inclination angle of the mixing cylinder portion 2 To adjust Composed of a pair of variable-pillars 40 that are condensation operation.

  The support frame 37 is provided with a first bracket 41 for pin-fixing the fixed-length pillar 38 and the variable-length pillar 40 collectively and a second bracket 42 for pin-connecting the support pillar 39. The support pillar 39 is detached from between the support frame 37 and the mixing cylinder portion 2 by removing any of the pins at both ends that are pin-coupled to the second bracket 42 and the connection bracket 14. The variable-length pillar 40 includes an expansion / contraction mechanism such as a screw jack or a hydraulic cylinder. The expansion / contraction operation may be manual or automatic.

  The support device 3 has a structure in which a rectangular link formed by the mixing cylinder portion 2, the support frame 37, the fixed-length pillar 38, and the support pillar 39 is stabilized by the variable-length pillar 40. When the variable-length pillar 40 is extended, the support pillar 39 rises and the mixing cylinder 2 rotates the position of the support bracket 16 on the upper end side of the mixing cylinder 2 to which the tip of the fixed-length pillar 38 is pin-coupled. As a fulcrum, the inclination angle with respect to the support frame 37 becomes small (becomes a gentle inclination). On the other hand, when the variable-length pillar 40 is contracted, the support pillar 39 is tilted, and the mixing cylinder portion 2 has an inclination angle with respect to the support frame 37 with the support bracket 16 position on the upper end side as a rotation fulcrum (tight inclination). Becomes). Thereby, the inclination-angle of the cylinder part 2 for mixing can be adjusted. About the support pillar 39, in order to make the motion of a square link smooth, it is good also as a telescopic extension as needed.

  In the present embodiment, the tilt-type fixed-length pillar 38 and the support pillar 39 are combined to form a square link. However, the fixed-length pillar 38 is fixed to the support frame 37 so as not to rotate. The support pillar 39 may be omitted. Even in this case, by expanding and contracting the variable-length pillar 40, the mixing cylinder portion 2 rotates the support bracket 16 position on the upper end side of the mixing cylinder portion 2 to which the tip of the fixed-length pillar 38 is pin-joined. As described above, it is possible to perform an angle adjustment to reduce or increase the inclination angle with respect to the support frame 37.

  Further, a maintenance facility 43 is provided in the vicinity of the locally collected soil mixing apparatus 1. The maintenance equipment 43 is provided on a lifting machine 45 such as an overhead crane in which a lifting tool 44 is detachably connected to a suspension bracket 17 on the upper end side of the mixing cylinder portion 2 and a support frame 37, and is a tilt-type fixed-length pillar. Tension of a wire or a chain detachably provided between a cradle 46 that supports the base plate 38 in an inclined state, a reaction force receiving bracket 47 provided on the support base 37 and a mounting bracket 48 provided on the fixed-length pillar 38. It is mainly composed of a force introducing member 49.

  The tilting-type fixed-length pillar 38 has a direction in which it is tilted. Further, the fixed-length pillar 38 is tilted together with the mixing cylinder portion 2 in a state where the support pillar 39 is detached and the variable-length pillar 40 is connected. The mixing cylinder 2 can be tilted together with the fixed-length pillar 38 by detaching the support pillar 39, and the lifting machine 45 can be used to suspend the mixing cylinder 2 that can be tilted together with the fixed-length pillar 38. It is adapted to be lifted and supported via a bracket 17.

  The cradle 46 is positioned in the set tilt direction of the fixed-length pillar 38, in other words, is disposed at a location where the fixed-length pillar 38 falls. The upper surface 46a of the cradle 46 is positioned at a height higher than the pin position of the first bracket 41 for pin-fixing the fixed-length pillar 38 on the support frame 37 in order to support the fixed-length pillar 38 in an inclined posture. It is said to be a slope. When the fixed-length pillar 38 is tilted, the mixing cylinder portion 2 is laid sideways by the cooperative action of the height of the cradle 46 and the variable-length pillar 40 that is in an inclined state floating from the support frame 37. And is supported in a state of floating above the support frame 37. At this time, the position of the center of gravity of the mixing cylinder portion 2 is preferably set so as to be in the vicinity immediately above the cradle 46.

  The tensile force introducing member 49 includes a take-up reel, a chain block, and the like, and the length can be adjusted by winding and rewinding. The tensile force introducing member 49 is adapted to introduce a tensile force that pulls the fixed-length pillar 38 connected to the mixing cylinder portion 2 toward the reaction force receiving bracket 47 side. Specifically, the tensile force introducing member 49 has a fixed length in order to prevent the mixing cylinder portion 2 lifted and supported by the lifting machine 45 and the fixed-length pillar 38 connected thereto from tilting in an unexpected direction. A tensile force for pulling the mixing cylinder portion 2 in the set tilt direction is input via the pillar 38.

  Below, an effect | action of the local collection earth and sand mixing apparatus 1 concerning this embodiment is demonstrated. First, the operation status of the locally collected soil mixing apparatus 1 will be described. The mixing cylinder portion 2 is installed on the support frame 37 in an inclined state. The motor 29 of each unit body 10 with a stirrer is started, and the stirrer 8 of each unit body 10 with a stirrer is rotationally driven by each motor 29 individually and independently. Further, water spraying from the water supply unit 35 provided in the portal frame 12 into the transport path P is started. When the mixed material is dropped from the carry-in means 4 onto the hopper 5 at the upper end of the mixing cylinder 2, the dropped mixed material flows down into the conveyance path P of the mixing cylinder 2 by the action of gravity. In this embodiment, from the carrying-in means 4, the dry mixed material which mixed local collection earth and sand and cement is dropped.

  The mixed material flowing down is kneaded in a dry state by the first stirrer 8 at the uppermost stage. The air-kneaded mixed material passes through the gate-shaped frame 12 having the water supply unit 35 and flows down in the transport path P toward the agitator 8 in the next stage. When passing through the water supply unit 35, the mixed material is added with water and thereafter flows down in a wet state. Thereafter, the mixed material is mixed and agitated by the mixing action by flowing down and the agitating action by the stirrer 8 arranged in multiple stages, reaches the lower end of the mixing cylinder 2 and is discharged from the chute 7 to the unloading means 6. Is done. Thereby, mixing stirring of the mixed material is achieved.

  In the above description, the case where the dry mixed material is dropped onto the hopper 5 has been described. However, the wet mixed material may be dropped onto the hopper 5 by adding water to the mixed material before feeding the hopper. . Also in this case, water may be additionally supplied from the water supply unit 35 as necessary. Of course, the water supply from the water supply unit 35 may not be performed.

  Next, the inclination angle adjustment of the mixing cylinder portion 2 will be described. The mixing cylinder portion 2 is supported on the support frame 37 by a tilt-type fixed-length pillar 38, a support pillar 39, and a variable-length pillar 40 at a constant inclination angle. When adjusting the inclination angle of the mixing cylinder portion 2, the variable length pillar 40 is expanded or contracted. When the variable-length pillar 40 is extended, the mixing cylinder 2 is rotated around the support bracket 16 that is pin-coupled to the tip of the fixed-length pillar 38, whereby the mixing cylinder 2 is inclined with respect to the support frame 37. It can be adjusted to be smaller. On the other hand, when the variable-length pillar 40 is contracted, the mixing cylinder 2 is rotated around the support bracket 16 at the upper end thereof, thereby adjusting the mixing cylinder 2 so that the inclination angle with respect to the support frame 37 becomes large. can do.

  Furthermore, the effect | action of the maintenance equipment 43 illustrated about the local collection earth and sand mixing apparatus 1 of this embodiment is demonstrated using FIGS. 1-3, and FIGS. 12-16. Before the maintenance work, the mixing cylinder portion 2 of the on-site sampling soil mixing device 1 is supported by the support device 3 in an inclined state.

  First, as shown in FIG. 12, the lifting tool 44 of the lifting machine 45 is attached to the lifting bracket 17 on the upper end side of the mixing cylinder part 2, and the lifting load that lifts and supports the mixing cylinder part 2 is applied to the lifting machine 45. generate. Further, the pin that connects one end of the support pillar 39 to the connecting bracket 14 on the lower end side of the mixing cylinder 2 is removed, and the support pillar 39 is detached from between the mixing cylinder 2 and the support frame 37. Thereby, the suspension process of the mixing cylinder part 2 is completed.

  Next, when the variable length pillar 40 is expanded or contracted in a state where the mixing cylinder portion 2 is lifted and supported by the lifting machine 45, thereby supporting the fixed length pillar 38 on the receiving base 46 in an inclined state. Then, the angle of the mixing cylinder portion 2 is adjusted to the angle at which the mixing cylinder portion 2 is tilted so that the mixing cylinder portion 2 is in a substantially horizontal sideways state. Specifically, regarding the triangular shape formed by the fixed-length pillar 38 and the variable-length pillar 40 and the mixing cylinder portion 2 that are collectively pin-joined by the first bracket 41, the angle adjustment of the mixing cylinder portion 2 is possible. The tilt angle is adjusted by the variable-length pillar 40 to “the tilt angle satisfying the condition that the mixing cylinder portion 2 is horizontally tilted and the fixed-length pillar 38 is supported in the tilted state on the receiving base 46”. Thereby, the angle adjustment process at the time of inclination of the cylinder part 2 for mixing is completed.

  Next, as shown in FIG. 12, the tensile force introducing member 49 is connected to the mounting bracket 48 of the fixed-length pillar 38. This connecting work may be completed in the hanging process or the tilting angle adjusting process. With the tensile force introducing member 49 connected to the fixed-length pillar 38, the mixing cylinder 2 is moved to the support frame 37 and the cradle 46 by moving the lifting tool 44 of the lifting machine 45 and winding the tensile force introducing member 49. Tilt towards. By tilting in this way, the position of the center of gravity of the mixing cylinder portion 2 moves in the set tilt direction. If the position of the center of gravity moves in the set tilt direction, the tilt direction of the mixing cylinder portion 2 and the fixed-length pillar 38 is stabilized, and thereafter, the tensile force introducing member 49 is removed from the mounting bracket 48 and removed. Thereby, the tilting operation process of the mixing cylinder part 2 is completed.

  Next, the mixing cylinder part 2 is lowered toward the support frame 37 by the lifting machine 45. When the mixing cylinder portion 2 is lowered, the fixed-length pillar 38 is placed on the cradle 46 as shown in FIG. Since the mixing cylinder 2 is set at the tilt angle by the variable-length pillar 40, when the fixed-length pillar 38 is supported in an inclined state by the cradle 46, the fixed-length pillar 38 and the variable-length pillar 40 are automatically used. In cooperation, the mixing cylinder portion 2 can be supported in a state where it is laid down and floated above the support frame 37. Thereby, the sideways support process of the mixing cylinder part 2 is completed.

  Inspection and maintenance work is appropriately performed in a state where the mixing cylinder portion 2 is laid down and supported. During the operation, the inspection port 19 of the mixing cylinder portion 2 faces the support frame 37 when the mixing cylinder portion 2 is lifted and supported by the receiving base 46. By opening the opening 19, the inside of the transport path P can be inspected and maintained from the lower side of the mixing cylinder portion 2. If the mixed material stays in the transport path P, it can be discharged onto the support frame 37 from the inspection port 19. Moreover, the inspection and maintenance in the conveyance path P can also be performed by removing the top opening / closing lid 32 and the side opening / closing lid 33.

  Furthermore, replacement can be performed in units of 10 units with a stirrer. When exchanging, the unit body 10 with a stirrer is removed from the main body part 9 of the mixing cylinder part 2 and another unit body 10 with a stirrer to be replaced is attached. The unit body 10 with a stirrer can be removed by removing the mounting flange portions 23 and 24 from the connecting flange portions 13 and 18 of the main body portion 9. Thereafter, as shown in FIG. 14, the lifting tool 44 of the lifting machine 10 detached from the mixing cylinder portion 2 is connected to an appropriate portion of the unit body 10 with a stirrer and lifted and removed.

  After that, as shown in FIG. 15, another unit body 10 with a stirrer to be exchanged is carried by the lifting machine 45, suspended from the main body 9 so as to be mounted between the portal frames 12, and the mounting flange portion 23. 24 and the connecting flange portions 13 and 18 of the main body 9 are fastened. At this time, since each unit body 10 with a stirrer is individually provided with a motor 29, the replacement can be completed only by lifting and lowering the unit body 10 with a stirrer to be replaced. Therefore, it is not necessary to perform work between the unit bodies 10 with a stirrer, and the work can be completed easily. Thereby, a unit body exchange process is completed.

  After the inspection and maintenance work is completed, as shown in FIG. 16, the lifting tool 44 of the lifting machine 45 is connected to the hanging bracket 17 of the mixing cylinder 2 to lift and support the mixing cylinder 2. In addition, a tensile force introducing member 49 is attached to the mounting bracket 48 of the fixed-length pillar 38. Thereafter, the tensile force introducing member 49 is suspended by lifting the lifting machine 45 while unwinding the tensile force introducing member 49 while applying a tensile force so that the fixed-length pillar 38 and the mixing cylinder portion 2 do not fall in a direction different from the set tilting direction. The tool 44 is moved, and the mixing cylinder portion 2 is raised together with the fixed-length pillar 38. Thereby, the starting operation process of the mixing cylinder part 2 is completed.

  Next, the variable-length pillar 40 is expanded and contracted to adjust the angle of the mixing cylinder part 2 from the tilted angle to the operating angle, thereby completing the operating angle adjusting process of the mixing cylinder part 2.

  Finally, one end of the support pillar 39 pin-bonded to the second bracket 42 of the support frame 37 is inserted into the connection bracket 14 of the mixing cylinder portion 2 to be pin-bonded. Thereafter, the hoisting tool 44 of the lifting machine 45 is removed from the hoisting bracket 17 of the mixing cylinder 2. If necessary, the tensile force introducing member 49 is also removed. Thereby, the mixing cylinder part 2 can be supported on the support frame 37 in an inclined state by the fixed-length pillar 38, the support pillar 39, and the variable-length pillar 40, and the on-site sampling soil mixing apparatus 1 can be restarted. Is completed.

  As described above, in the locally collected earth and sand mixing apparatus 1 according to the present embodiment, the mixing cylinder portion 2 includes the bottom portion 11 that guides the flow of the mixed material and the bottom portion with an interval in the flow direction of the mixed material. 11 has a main body portion 9 having a plurality of portal frames 12 disposed in a direction across the same, a stirrer 8 and a motor 29 for driving the stirrer 8, and between the portal frames 12 of the main body portion 9. Since it is formed from a plurality of unit bodies 10 with stirrers that are detachably mounted and cover the bottom 11 to form the conveyance path P, any stirrer, such as when any stirrer 8 fails Even if the unit body 10 with the stirrer becomes inoperable, the other unit bodies 10 with the stirrer are individually provided with the motors 29 and can operate them. Just replace It is possible to recover the location 1.

  For the replacement work, the unit body 10 with a stirrer that is detachable from the main body 9 can be easily removed and attached by simply detaching the connection at the flanges 13, 18, 23, 24, for example. is there. When the unit body 10 with a stirrer is simply replaced by an easy replacement operation, the apparatus 1 can be restored and operated thereafter, and the broken stirrer 8 is repaired while it is incorporated in the mixing cylinder 2. Compared to the above, the recovery time can be significantly shortened.

  About the unit body 10 with a stirrer which removed, measures, such as a maintenance check, can be taken freely about this.

  Further, the mixing cylinder part 2 is composed of the unit body 10 with a stirrer and the main body part 9 from which these are attached and detached. Even if the unit body 10 with a stirrer is removed, the mixing cylinder part 2 is thereby removed. However, the original form cannot be maintained and the unit body with a stirrer 10 can be easily replaced as described above, and the work time required for the replacement can be shortened. Can do.

  Thus, it can replace | exchange for every unit body 10 with a stirrer, and after replacement | exchange, operation | movement can be restarted if the motor 29 with which each was equipped including the unit body 10 with a stirrer which has not failed is started. Therefore, compared to the case where the agitators 8 are further chain-connected after the replacement or the mixing cylinder part 2 is assembled by directly connecting the unit bodies 10 to be separated, the locally collected soil mixing apparatus 1 is remarkably easily and in a short time. Can be recovered and restarted.

  Moreover, the 1st stirring which is provided in the uppermost stage among the mixing cylinder part 2 into which field collection soil and cement are thrown in from the upper end as mixing material, and the stirrer 8 of the mixing cylinder part 2 is kneaded with mixing material. And a water supply unit 35 that is provided on the downstream side of the first stirrer 8 along the flow direction of the mixed material and feeds the mixed material flowing down in the conveyance path P, and includes the first stirrer. The ground collected soil and cement can be stirred and mixed sufficiently and uniformly without relying only on the mixing performed by the flow-down action due to gravity, and then water is added from the water supply unit 35. Compared to the case where all the materials to be mixed and stirred are put in from the hopper at once, good and rational stirring and mixing can be performed. That is, the kneading step can be structurally divided or set in the mixing cylinder portion 2 along the flow direction of the mixed material, and the mixed material can be appropriately mixed and stirred in the transport path P. Can do.

  Further, the mixing cylinder portion 2 includes a bottom portion 11 that guides the flow of the mixed material, and a plurality of gate-type frames 12 that are disposed in a direction across the bottom portion 11 with an interval in the flow direction of the mixed material. A plurality of parts 9, a stirrer 8, and a motor 29 for driving the stirrer 8, which are detachably mounted between the portal frame 12 of the main body part 9 and cover the bottom part 11 to form a conveyance path P. Since the water supply unit 35 is provided in the gate-type frame 12, the gate-type frame for mounting the unit body 10 with the agitator without securing a space for water supply is formed. 12, the water supply part 35 can be installed between the stirrer 8 appropriately and rationally. Specifically, along the flow direction of the mixed material, water can be added in front of the stirrer 8 that stirs the mixed material, and the mixed material that has been added can be effectively and efficiently stirred by the stirrer 8. It can be rationally arranged at a position that does not interfere with the agitator 8 that is rotationally driven.

  Also, a support frame 37 on which the mixing cylinder portion 2 is mounted, and a fixed type whose base end is fixed to the support frame 37 so as not to rotate and whose tip is rotatably connected to the upper end side of the mixing cylinder portion 2. One end is rotatably pin-coupled to the long pillar 38 and the support frame 37, and the other end is rotatably pin-coupled to the mixing cylinder 2. The telescopic operation is performed to adjust the inclination angle of the mixing cylinder 2. Or, instead of the fixed fixed-length pillar 38, the base end is rotatably coupled to the support frame 37 and the distal end is rotatably pinned to the upper end side of the mixing cylinder 2 Unlike the background art, the mixing cylinder portion to be tilted is provided with the tilting fixed length pillar 38 and the support frame 37 and the support pillar 39 having both ends pin-coupled to the lower end side of the mixing cylinder portion 2. 2 end of rotation Can be set to the side), be adjusted inclination angle, it is possible to reduce the amount of movement of the upper end position of the mixing tube portion 2.

  Thereby, the position adjustment of the carrying-in apparatus 4 which inputs the mixed material into the hopper 5 is almost unnecessary and even if necessary, it is possible to prevent the material input operation from being hindered. Therefore, even if it is necessary to change the inclination angle of the mixing cylinder portion 2, it can be easily and quickly restored.

  Further, when the fixed-length pillar 38 is fixed and the mixing cylinder 2 is supported thereby, the installation of the support pillar 39 is unnecessary, and the structure can be simplified. On the other hand, by installing the support pillar 39, the fixed-length pillar 38 can be tilted, and the attitude of the mixing cylinder portion 2 can be adjusted with a high degree of freedom.

  Further, by providing the support pillar 39, a rectangular link can be formed together with the tilting fixed length pillar 38, the mixing cylinder 2 and the support frame 37, whereby the variable length pillar 40 can be connected to the tilting fixed length pillar 38. At the same time, it can be pin-coupled to the support frame 37 coaxially and collectively (see the first bracket 41), so that the mounting space for these pillars 38, 39, 40, etc. can be made compact and the mounting work can be simplified. it can.

  Further, in the present embodiment, the maintenance equipment 43 and the maintenance method of the locally collected earth and sand mixing device are shown, and the support frame 37 on which the mixing cylinder portion 2 is mounted, and the base end of the support frame 37 is rotated. A tilt-type fixed-length pillar 38 that is freely pin-coupled and whose tip is rotatably pin-coupled to the upper end side of the mixing cylinder portion 2, and is tiltable between the support frame 37 and the lower end side of the mixing cylinder portion 2 and One end of the support pillar 39 provided so as to be detachable and the support frame 37 are rotatably pin-coupled, and the other end is rotatably pin-coupled to the mixing cylinder 2 so that the inclination angle of the mixing cylinder 2 is increased. A variable-length pillar 40 that is expanded and contracted to adjust, a lifting machine 45 for lifting and supporting the mixing cylinder portion 2 supported by a fixed-length pillar 38 that can be tilted with the support pillar 39 detached, and an appropriate height Fixed on the support base 37 The fixed-length pillar 38 that is tilted is provided to be positioned in the set tilting direction of the pillar 38, and in cooperation with the variable-length pillar 40, the tilted fixed-length pillar 38 is supported to lie down and support the mixing cylinder portion 2 above the support frame 37. Tension that pulls the mixing cylinder portion 2 that is detachably provided between the cradle 46 that supports in an inclined state, the support frame 37 and the fixed-length pillar 38 and is lifted and supported by the lifting machine 45 in the set tilt direction. A tensile force introducing member 49 into which a force is introduced, and using the maintenance equipment 43, the mixing cylinder 2 is lifted and supported by the lifting machine 45, and the support pillar 39 is supported by the mixing cylinder 2 and the support frame 37. A suspension step for separating the tube from the space, a tilting angle adjusting step for adjusting the mixing tube portion 2 to a tilting angle by the variable length pillar 40, and a mixing tube portion 2 by the lifting machine 45 and the tensile force introducing member 49. Cradle 6, the tilting operation step of removing the tensile force introducing member 49 according to the fact that the center of gravity of the mixing cylinder 2 has moved in the set tilting direction, and the lifting cylinder 45 lowers the mixing cylinder 2. Then, by placing the fixed-length pillar 38 on the receiving base 46, the side-by-side support step of supporting the mixing cylinder portion 2 in a state of being laid down above the support frame 37 in cooperation with the variable-length pillar 40. Therefore, the mixing cylinder portion 2 can be easily shifted to the sideways state that is the maintenance inspection posture without removing most of the various members of the support device 3 that supports the mixing cylinder portion 2. In addition, it is only necessary to start up the mixing cylinder portion 2 with the lifting machine 45, and it is possible to lay down and perform the restoration operation easily and in a short time.

  In addition, since the gantry 46 and the variable length pillar 40 are provided and the angle adjustment process at the time of tilting of the mixing cylinder portion 2 is performed, the mixing cylinder portion 2 is floated almost horizontally above the support frame 37. Can lie down. If the mixing cylinder part 2 is installed directly on the upper surface of the support frame 37, there is a disadvantage that no operation can be performed on the lower surface of the mixing cylinder part 2 when lying down. Maintenance inspection and soil removal can be performed from the lower side of the cylinder section 2, and the inspection and maintenance of the locally collected soil mixing apparatus 1 can be performed efficiently and sufficiently.

  Moreover, since the tensile force introducing member 49 is provided, it is possible to restrict the mixing cylinder portion 2 and the fixed-length pillar 38 from being tilted in an unexpected direction, and to improve the work safety of the tilting operation process. .

  In addition, since the mixing cylinder portion 2 is provided with the inspection port 19 that faces the support frame 37 when it is floated and supported by the cradle 46, specifically, it is provided at the bottom portion 11 of the main body portion 9. Inspection and maintenance of the mixing cylinder portion 2 can be performed efficiently and accurately.

  Further, the mixing cylinder portion 2 includes a bottom portion 11 that guides the flow of the mixed material, and a plurality of gate-type frames 12 that are disposed in a direction across the bottom portion 11 with an interval in the flow direction of the mixed material. A plurality of parts 9, a stirrer 8, and a motor 29 for driving the stirrer 8, which are detachably mounted between the portal frame 12 of the main body part 9 and cover the bottom part 11 to form a conveyance path P. Since the unit body replacement step for replacing the unit body 10 with a stirrer is performed after the sideways support step, the unit body with the stirrer 10 is carried out. The unit body 10 with the stirrer can be replaced by the lifting machine 45 after the 45 is detached, and the unit body 10 with the stirrer that has failed can be replaced with a new one quickly and easily. Thereby, restoration of field collection earth and sand mixing device 1 can be completed in a short time.

  In addition, after the maintenance work is finished, the mixing cylinder part 2 is lifted and supported by the lifting machine 45, the tensile force introducing member 49 is attached to the fixed-length pillar 38, and the mixing cylinder part 2 is raised together with the fixed-length pillar 38. Supporting pillar between the support frame 37 and the mixing cylinder part 2 lower end side, the starting operation process of raising, the operation angle adjustment process of adjusting the mixing cylinder part 2 to the operation angle by the variable length pillar 40 39, and after that, the return completion process of removing the lifting machine 45 from the mixing cylinder 2 is carried out, so that the mixing cylinder 2 is started up for the restoration of the locally collected soil mixing apparatus 1 In this recovery process, the angle adjustment during operation of the mixing cylinder portion 2 is performed before the support pillar 39 is mounted, so that it is easier to mix than after the support pillar 39 is attached. Of the cylinder part 2 It is possible to perform the time adjustment.

  17 and 18 show a modification of the above embodiment. In the above embodiment, the unit body 10 with a stirrer is mounted between all the portal frames 12, but as shown in FIG. 17, instead of the unit body 10 with a stirrer, You may make it attach the blank unit body 50 which is not equipped with the stirrer and the motor to an appropriate position so that attachment or detachment is possible. In the illustrated example, a blank unit body 50 is attached to the lowermost end of the mixing cylinder portion 2. The blank unit body 50 is composed of the pair of side plates 22a and the top plate 22b. Like the unit body 10 with a stirrer, the blank unit body 50 is connected to the connecting flange portions 13 and 18 of the main body portion 9 via the mounting flange portions 23 and 24. Be joined. The blank unit body 50 is used for adjusting the stirring condition. If necessary, the blank unit body 50 may be replaced with a unit body with a stirrer 10 as shown in FIG. 18 instead. The replacement work is performed by a unit body replacement process by the maintenance facility 43.

  In this way, instead of at least one unit body 10 with a stirrer, a blank unit body 50 that covers the bottom portion 11 and defines the conveyance path P is detachably mounted between the portal frame 12 on the main body 9. Therefore, the number of facilities of the unit body 10 with a stirrer can be changed according to a required stirring capacity. That is, when the stirring ability is sufficient, the stirrer of the unit body 10 with a stirrer is in the transport path P, and thus discharge is hindered. Therefore, instead of the unit body 10 with a stirrer, the blank unit body 50 (It becomes an energy-saving structure without a motor), and in the case of improving the stirring ability, instead of the blank unit body 50, the unit body 10 with a stirrer is assembled to constitute the locally collected soil mixing apparatus 1. In this way, room can be given to the apparatus configuration, flexibility can be improved, and mixing and stirring of the mixed material can be performed efficiently.

DESCRIPTION OF SYMBOLS 1 Site collection earth and sand mixing apparatus 2 Cylinder part for mixing 8 Stirrer 9 Main body part 10 Unit body with stirrer 11 Bottom part 12 Portal frame 29 Motor 50 Blank unit body P Conveyance path

Claims (2)

The upper end of the mixing cylinder part which forms a hollow conveyance path, is inclined from the upper end to the lower end, and a plurality of agitators driven by a motor are arranged in multiple stages along the inclination direction in the conveyance path The mixed material is introduced into the conveying path from above, the mixed material flowing down while being mixed in the conveying path is stirred with the stirrer, and the mixed material mixed and stirred in the conveying path is mixed with the lower end of the mixing cylinder In the field sampling soil mixing device discharged from
A main body provided with a plurality of gate-shaped frames arranged in a direction straddling the bottom of the mixing cylinder, the bottom of the mixing material being guided and the bottom of the mixed material with a gap in the flow down direction; A plurality of units equipped with stirrers that have a stirrer and the motor for driving the stirrer, are detachably mounted between the gate-type frames of the main body, and cover the bottom to form the conveyance path A locally collected soil mixing device characterized by being formed from the body.   Instead of at least one unit body with a stirrer, a blank unit body that covers the bottom portion and defines the conveyance path is detachably mounted between the portal frames on the main body portion. The locally collected soil mixing apparatus according to claim 1.

Images