JP2008013942A - Solidification apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solidification apparatus which is enhanced in workability at the time of mounting/dismounting of a ladder, by forming the ladder and a floor separately from each other. <P>SOLUTION: According to the structure of the solidification apparatus, a work floor 16 which forms a scaffold for the operator to check the operation of a sieve device, is provided with a movable floor 18 which moves between a projective position projecting from the work floor 16, and a storage position stored in the same, and the ladder 21 is detachably attached to the movable floor 18. Thus when the ladder 21 suspended by using a crane or the like, is attached to the movable floor 18 moved to the projective position, the ladder 21 alone can be suspended by the crane in a balanced manner, and therefore the stability of the ladder 21 when suspended by the crane is enhanced, which leads to enhanced workability of the ladder 21 when attached to the movable floor 18. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a solidification processing apparatus that generates reusable improved soil by mixing and reforming a solidified material with mud such as sludge generated by civil engineering work, for example.

  In general, a large amount of mud such as excavated soil and sludge is generated in civil works such as construction work and dredging work. In order to reuse these mud as a high-strength backfill material and foundation ground material, for example, a solidification processing device is known that mixes solidification materials (additives) such as cement and quicklime with the mud and reforms them. ing.

  This solidification processing apparatus usually includes a frame that forms a support structure, a mud hopper that is provided on the frame and has an opening on the upper end side that accommodates mud, and a sieve that is provided in the opening of the mud hopper and selects mud. And a stirrer that stirs and mixes the mud supplied from the mud hopper and the solidified material supplied from the solidified hopper. ing. And this solidification processing apparatus can produce | generate improved soil reusable as a backfill material etc. by stirring and mixing mud and a solidification material with an agitator.

  By the way, this type of solidification processing apparatus according to the prior art is usually composed of a plurality of units that can be disassembled and assembled in order to quickly process mud generated at a civil engineering work site. Thus, after each unit is loaded on a truck or the like and individually transported to a civil engineering work site, it can be easily assembled as a solidification processing device at the civil engineering work site (see, for example, Patent Document 1).

JP-A-9-253620

  By the way, the solidification processing apparatus by a prior art is normally provided with the work floor which forms a worker's scaffolding around a sieve apparatus, and the ladder which makes step shape is attached to this work floor. For example, when confirming the operation of the sieving device, the state of the mud thrown into the mud hopper, etc., the worker uses a ladder to go up on the work floor.

  And the ladder used for the solidification processing apparatus by this prior art is normally formed in the upper end side as a one-piece structure by which a part (floor) of the floor was fixed integrally. The integrated structure of the ladder and the landing is configured to be attached to a work floor provided around the sieving apparatus using bolts or the like while being lifted by a crane or the like.

  However, since the integrated structure of the ladder and the landing is heavy and has a large external dimension, it is difficult to balance the weight when the integrated structure is lifted using a crane or the like. For this reason, it is difficult to keep the integrated structure of the ladder and the landing stage in a stable state during the installation and removal of the ladder, and the workability when installing and removing the ladder is reduced. There is.

  The present invention has been made in view of the above-described problems of the prior art, and a solidification processing apparatus that can improve workability when attaching and detaching a ladder by separately forming a ladder and a floor. It is intended to provide.

  In order to solve the above-described problems, the present invention provides a frame that forms a support structure, a mud hopper that rises upward from the frame and has an upper end that is an opening that accommodates mud, and an opening of the mud hopper. A sieving device for dropping the mud selected through a sieve provided in a section to the opening of the mud hopper, a solidifying material hopper provided in the frame for containing a solidifying material to be added to the mud, and the mud provided in the frame The present invention is applied to a solidification processing apparatus provided with a stirrer that stirs and mixes the mud supplied from a hopper and the solidified material supplied from the solidified hopper.

  According to a first aspect of the present invention, the frame is provided with a work floor that forms a scaffold for an operator to confirm the operation of the sieving device, and the work floor protrudes with respect to the work floor. A movable floor that is movable between the protruding position and the stored storage position is provided, and a ladder on which the operator gets on and off the ground when the movable floor is in the protruding position is provided on the movable floor. It is in the structure which attaches so that attachment or detachment is possible.

  The invention according to claim 2 is characterized in that a projecting position holder that holds the movable floor at the protruding position and a storage position holder that holds the movable floor at the storage position between the work floor and the movable floor. It is that it was set as the structure which provides.

  According to a third aspect of the present invention, an abutting member that holds the ladder with respect to the movable floor by abutting on the upper surface of the movable floor moved to the projecting position is provided on the upper end side of the ladder. The member and the movable floor are configured to be fixed using a fastening member.

  According to the first aspect of the present invention, when assembling the solidification processing apparatus at the work site, the ladder lifted by using a crane or the like can be attached to the movable floor protruding from the work floor by moving the movable floor to the protruding position. it can. In this case, the ladder and the movable floor are formed separately, and the ladder can be lifted in a balanced manner by a crane alone. For example, the ladder and a part of the floor (dancer) are integrated into an integrated structure. In comparison, the stability when the ladder is lifted by a crane can be improved, and the workability when the ladder is attached can be improved.

  In addition, when the ladder is removed from the movable floor for transporting the solidification processing device on the vehicle, the movable floor protrudes from the work floor by moving the movable floor to the storage position and storing it on the work floor side. There is nothing. Accordingly, the outer dimension of the work floor during transportation can be reduced, and other loads can be loaded on one transport vehicle together with the work floor, so that the transport efficiency can be improved.

  According to the invention of claim 2, when the movable floor is moved to the projecting position, the projecting position holder can hold the movable floor in a state of projecting from the work floor. Stability when getting on and off can be improved. On the other hand, when the movable floor is moved to the storage position, the movable floor can be held in the stored state on the work floor side by the storage position holder. Stability when lifting the stored work floor using a crane or the like can be enhanced.

  According to the invention of claim 3, when attaching the ladder to the movable floor protruding from the work floor, the contact member provided on the upper end side of the ladder is brought into contact with the upper surface of the movable floor, thereby The ladder can be held in a stable posture. And the worker who went up the ladder can fix the ladder to the movable floor by fixing the contact member and the movable floor using the fastening member.

  Hereinafter, embodiments of a solidification processing apparatus according to the present invention will be described in detail with reference to FIGS. 1 to 16.

  In the figure, reference numeral 1 denotes a stationary type solidification processing apparatus. The solidification processing apparatus 1 mixes and stirs a solidified material such as cement and quicklime with mud generated by civil engineering, for example, a backfill material, a foundation ground, and the like. It produces improved soil that can be reused as a material. Here, as shown in FIGS. 1 to 3, etc., the solidification processing apparatus 1 includes a base frame 2, a support frame 3, a mud hopper 4, a vibrating screen 6, a solidifying material hopper 9, a rotating drum 11, and an improved soil take-out. The apparatus 14, the work floor 16, the movable floor 18, the ladder 21 and the like are configured.

  Reference numeral 2 denotes a base frame serving as a base of the solidification processing apparatus 1, and the base frame 2 is formed in a rectangular frame shape extending in the front and rear directions as a whole by using a steel material such as I-shaped steel or H-shaped steel. ing. The base frame 2 is laid on the ground of the work site as shown in FIG. 1, and a support frame 3 described later is mounted on the base frame 2.

  Reference numeral 3 denotes a support frame mounted on the base frame 2, and the support frame 3 supports a mud hopper 4, a solidifying material hopper 9, a rotating drum 11 and the like which will be described later. Here, the support frame 3 is formed using, for example, a steel material such as I-shaped steel, H-shaped steel, and the like, and has a rectangular lower frame portion 3A extending forward and rearward along the base frame 2, and the lower frame. A floor support leg 3B which is erected on one side in the length direction of the portion 3A and supports a work floor 16 which will be described later from below, and a solidifying material hopper 9 which is erected on an intermediate portion in the length direction of the lower frame portion 3A. Is substantially constituted by a bowl-shaped hopper support leg 3C that supports the like.

  4 is a mud hopper provided on one side in the length direction of the support frame 3, and the mud hopper 4 is formed in a bottomed box shape with an upper end side being a funnel-shaped opening 4 </ b> A. Standing up towards. Here, the mud hopper 4 is disposed at a position surrounded by the floor support legs 3B of the support frame 3, and a vibration screen 6 described later is disposed directly above the opening 4A. . And the mud produced | generated by the civil engineering is comprised by the opening part 4A of the mud hopper 4 through the vibration screen 6 mentioned later.

  On the other hand, a screw conveyor type mud supply device 5 is provided on the bottom side of the mud hopper 4, and mud A generated by civil engineering work is accommodated in the mud hopper 4 through the vibrating screen 6. After that, the mud supply device 5 is configured to supply the rotating drum 11 described later.

  6 is a vibrating screen as a sieving device provided on the opening 4A side of the mud hopper 4, and the vibrating screen 6 selects the size of the mud contained in the mud hopper 4 by sieving the mud, The selected mud is dropped into the opening 4 </ b> A of the mud hopper 4. Here, the vibrating screen 6 is attached to a work floor 16 described later via an elastic body (not shown).

  The vibrating screen 6 has a net member 6A such as a wire net, for example. By applying vibration to the mud dropped on the net member 6A, for example, as shown in FIG. 3, the net member 6A of the vibrating screen 6 is provided. Only the mud A that has passed through is dropped into the opening 4A of the mud hopper 4, and large mud A that cannot pass through the net member 6A, stones, and the like are discharged to the outside as impurities.

  7 is a foreign substance chute provided adjacent to the vibrating screen 6, and the foreign substance chute 7 directs foreign substances such as large mud and stone selected by the vibrating screen 6 toward the foreign substance discharge conveyor 8. To be transported. The foreign matter transferred from the foreign matter chute 7 to the foreign matter discharge conveyor 8 is transported to a desired discharge place by the foreign matter discharge conveyor 8.

  9 is a solidification material hopper supported by the hopper support leg 3C of the support frame 3 adjacent to the mud hopper 4, and the solidification material hopper 9 is a solidification material (additive material) to be added to mud such as cement and quicklime. ). Here, as shown in FIG. 3, a screw conveyor type solidification material supply device 10 is provided on the bottom side of the solidification material hopper 9, and the solidification material B put into the solidification material hopper 9 is solidified material supply device. 10 is supplied into a rotating drum 11 described later, and is mixed with the mud A in the rotating drum 11.

  11 is a rotating drum as a stirrer provided on the other side in the longitudinal direction of the support frame 3 adjacent to the solidifying material hopper 9, and the rotating drum 11 is supplied from the mud hopper 4 as shown in FIG. The mud A and the solidified material B supplied from the solidified material hopper 9 are mixed and stirred. Here, the rotating drum 11 is formed of a hollow cylindrical body rotatably supported by a plurality of rollers 12, 12,..., And a large number of stirring blades (not shown) are provided inside (inner peripheral surface). It has been. The rotary drum 11 is rotationally driven by the drive device 13 to generate the improved soil C by stirring and mixing the mud A and the solidified material B therein as shown in FIG.

  14 is an improved soil take-out device provided on the other end in the longitudinal direction of the support frame 3 adjacent to the rotating drum 11. The improved soil take-out device 14 is constituted by a screw conveyor as shown in FIG. Yes. The improved soil take-out device 14 takes out the improved soil C produced by stirring and mixing the mud A and the solidified material B in the rotary drum 11 to the outside of the rotary drum 11.

  Reference numeral 15 denotes an improved soil discharge conveyor provided adjacent to the improved soil take-out device 14, and the improved soil discharge conveyor 15 is constituted by, for example, a belt conveyor. And the improved soil discharge conveyor 15 conveys and discharges the improved soil taken out by the improved soil take-out device 14 to a desired discharge location.

  Reference numeral 16 denotes a work floor provided on each floor support leg 3B of the support frame 3. The work floor 16 performs a mud sorting operation by the vibrating screen 6, a mud input state in the opening 4A of the mud hopper 4, and the like. It forms a scaffold for workers to confirm. Here, as shown in FIGS. 1 and 2, the work floor 16 is fixed on each floor support leg 3 </ b> B of the support frame 3, thereby forming a U-shape surrounding the vibrating screen 6. ing. As shown in FIG. 7 and the like, a floor storage portion 17 described later is provided on the upper surface side of the work floor 16, and a lock described later is provided on the side end surface of the work floor 16 located in the vicinity of the floor storage portion 17. An engagement rod 16A with which one end side of the member 20 is engaged is fixedly provided.

  Reference numeral 17 denotes a floor storage section provided on the upper surface side of the work floor 16, and the floor storage section 17 stores a movable floor 18 (described later) in a detachable manner as shown in FIG. Here, the floor storage portion 17 has a hollow box shape extending in the left and right directions on the upper surface of the work floor 16, and one end side in the length direction is an open end 17A.

  Then, two pin insertion holes 17B and 17B through which positioning pins 19 described later are inserted are formed in the vicinity of the opening end 17A on the upper surface of the floor storage portion 17. Further, a rectangular stopper plate 17C extending in the width direction (direction orthogonal to the longitudinal direction) of the floor storage portion 17 is provided on the lower end side of the opening end 17A of the floor storage portion 17 using bolts or the like (not shown). As shown in FIG. 11, the stopper plate 17C is attached to a roller 18C of a movable floor 18 to be described later.

  A movable floor 18 is provided so as to be movable with respect to the work floor 16. The movable floor 18 has an upper surface 18A and front, rear, left and right side surfaces 18B as shown in FIG. It has a rectangular box shape that is slightly smaller than the storage unit 17. The movable floor 18 is taken out from the floor storage portion 17 as shown in FIG. 5 and protrudes left and right from the work floor 16 and retracted to the work floor 16 side as shown in FIG. A ladder 21 (described later) is attached in a state where the movable floor 18 is moved to the protruding position and moved to a storage position stored in the storage position 17.

  Here, as shown in FIGS. 7 and 8 and the like, four rollers 18C, 18C,... (Wheels) are rotatably attached to the lower surface side of the movable floor 18, and these rollers 18C are attached to the work floor 16. By moving the upper surface, the movable floor 18 can smoothly move (slide) between the protruding position (position in FIG. 5) and the storage position (position in FIG. 6) along the floor storage portion 17. It has become. When the movable floor 18 moves to the protruding position, as shown in FIG. 11, the roller 18C comes into contact with the stopper plate 17C of the floor storage portion 17, so that the movable floor 18 protrudes further from the floor storage portion 17. It is the composition which regulates it.

  On the other hand, two pin insertions in which positioning pins 19 described later are inserted into positions corresponding to the respective pin insertion holes 17B of the floor storage portion 17 in the middle portion in the length direction of the upper surface 18A of the movable floor 18. Holes 18D and 18D are formed. A handrail 18E bent in an inverted U shape is erected upward on one end side in the length direction of the upper surface 18A of the movable floor 18.

  Further, two handrail attachment holes 18F and 18F are formed in the vicinity of the handrail 18E on the upper surface 18A of the movable floor 18, and each handrail attachment hole 18F is bent in an inverted U shape. The attached detachable handrail 18G is detachably attached (see FIG. 8). Further, two female screw holes 18H, 18H constituted by, for example, a back nut or the like are provided on the upper surface 18A side of the movable floor 18, and each fixing bolt 23 described later is screwed into each of the female screw holes 18H. Is.

  Further, a handle 18I bent in a U-shape is fixed to the end surface of the movable floor 18 at one end in the length direction, and the handle 18I places the movable floor 18 between the protruding position and the storage position. An operator or the like grips the object when moving it.

  Reference numerals 19 and 19 denote two positioning pins as projecting position holders provided between the floor storage portion 17 and the movable floor 18 of the work floor 16, and each positioning pin 19 is shown in FIGS. 12, the movable floor 18 is protruded from the floor storage portion 17 as shown in FIG. 5 by being inserted into the pin insertion hole 17 </ b> B of the floor storage portion 17 and the pin insertion hole 18 </ b> D of the movable floor 18. It is something to hold.

  Reference numeral 20 denotes a lock member as a storage position holder provided between the work floor 16 and the movable floor 18. The lock member 20 includes, for example, a chain 20A and a key portion 20B that connects the chain 20A in an annular shape. It consists of a keyed chain. Here, as shown in FIGS. 6 and 9, the lock member 20 connects the movable floor 18 to the floor storage portion 17 by connecting the engagement rod 16 </ b> A of the work floor 16 and the handle 18 </ b> I of the movable floor 18. It is held in the storage position.

  Then, by removing the chain 20A from the key portion 20B of the lock member 20 and releasing the connection between the engagement rod 16A of the work floor 16 and the handle 18I of the movable floor 18, the movable floor 18 is moved as shown in FIG. The storage position in the floor storage unit 17 can be moved to the protruding position.

  Reference numeral 21 denotes a ladder that is detachably attached to the movable floor 18. The ladder 21 is attached to the movable floor 18 moved to the protruding position as shown in FIGS. An operator gets on and off between. Here, as shown in FIG. 8 and the like, the ladder 21 is a plurality of left and right struts 21A and 21A that are paired in the left and right directions, and a plurality of ladders that are fixed between the struts 21A with a certain interval. Are formed in a staircase shape by the treads 21B, 21B,. Each support 21A is provided with left and right handrails 21C and 21C for an operator who gets on and off the ladder 21 using the tread 21B as a foothold.

  22 and 22 are left and right abutting members provided on the upper end side of the ladder 21, and these left and right abutting members 22 abut against the upper surface 18A and the side surface 18B of the movable floor 18 moved to the protruding position. By contacting, the ladder 21 is held (temporarily fixed) in a stable posture with respect to the movable floor 18. Here, as shown in FIGS. 8 and 13, the contact member 22 is fixed to the upper end portion of the column 21 </ b> A constituting the ladder 21, and the vertical plate portion 22 </ b> A extending upward and downward, and the vertical plate portion 22 </ b> A. And a horizontal plate portion 22B protruding toward the movable floor 18 and formed in an inverted L shape. Further, bolt insertion holes 22 </ b> C corresponding to the female screw holes 18 </ b> H of the movable floor 18 are formed on the protruding end sides of the horizontal plate portions 22 </ b> B.

  Then, as shown in FIG. 13, each contact member 22 brings the vertical plate portion 22 </ b> A into contact with the side surface 18 </ b> B of the movable floor 18 and the horizontal plate portion 22 </ b> B into contact with the upper surface 18 </ b> A of the movable floor 18. The ladder 21 is securely hooked at the corners of the movable floor 18 and holds the ladder 21 in a posture that is obliquely bridged between the ground and the movable floor 18. Thereby, when the ladder 21 is attached to and removed from the movable floor 18, it is possible to improve the stability when the operator gets on and off the ladder 21.

  Reference numerals 23 and 23 denote fixing bolts as fastening members for fixing the abutting members 22 of the ladder 21 to the movable floor 18, and the fixing bolts 23 are provided on the ladder 21 as shown in FIGS. After being inserted into the bolt insertion hole 22 </ b> C of the contact member 22, it is screwed into the female screw hole 18 </ b> H provided in the movable floor 18. Thereby, each contact member 22 provided on the upper end side of the ladder 21 can be reliably fixed to the movable floor 18 using the fixing bolt 23.

  Reference numeral 24 denotes an operation panel disposed on the work floor 16, and the operation panel 24 is mounted on the work floor 16 via a support post 24A. And it has the structure which can control operation | movement of the solidification processing apparatus 1 by the operator who went up on the work floor 16 operating the operation panel 24. FIG.

  The solidification processing apparatus 1 according to the present embodiment has the above-described configuration, and this solidification processing apparatus 1 is divided into a plurality of units as shown in FIGS. After being transported to the work site, the solidification processing device 1 is assembled at this work site.

  Here, the truck 25 shown in FIG. 14 is loaded with an assembly comprising the support frame 3, the mud hopper 4, the solidifying material hopper 9, the rotating drum 11, and the improved soil take-out device 14, and the truck 26 shown in FIG. The assembly comprising the vibrating screen 6 and the work floor 16, the base frame 2, and the dust chute 7 are loaded, and the improved soil discharge conveyor 15 and the ladder 21 are loaded on the track 27 shown in FIG. The

  Each unit transported to the work site by the trucks 25 to 27 is assembled as the solidification processing apparatus 1 shown in FIGS. 1 and 2 using an assembly work crane or the like at the work site. In this case, in this embodiment, by providing the movable floor 18 so as to be movable with respect to the work floor 16, workability when the ladder 21 is attached to the movable floor 18 can be improved. The mounting operation of this ladder 21 will be described.

  First, as shown in FIG. 6, in a state where the work floor 16 is mounted on each floor support leg 3 </ b> B of the support frame 3, the movable floor 18 is stored in the floor storage portion 17 provided on the work floor 16. ing. In this case, as shown in FIG. 9, the engagement rod 16A of the work floor 16 and the handle 18I of the movable floor 18 are connected by a lock member 20 including a chain 20A and a key portion 20B. The storage position stored on the work floor 16 side (floor storage portion 17) is held.

  In this state, the operator extends a hand to the lock member 20 using a stepladder (not shown) as a scaffold, and removes the chain 20A from the key portion 20B of the lock member 20 as shown in FIG. The connection between the engagement rod 16A of the floor 16 and the handle 18I of the movable floor 18 is released.

  Next, after attaching a wire rope (not shown) from the crane to the handle 18I of the movable floor 18, the movable floor 18 is pulled out from the floor storage portion 17 of the work floor 16 by the crane. It moves to the protrusion position shown in FIG. In this case, since the plurality of rollers 18C are provided on the lower surface side of the movable floor 18, the movable floor 18 moves along the floor storage portion 17 as each of the rollers 18C rolls on the upper surface of the work floor 16. It can move (slide) smoothly to the protruding position.

  When the movable floor 18 reaches the protruding position, the roller 18C of the movable floor 18 comes into contact with the stopper plate 17C provided in the floor storage portion 17, as shown in FIG. Thereby, it is possible to reliably restrict the movable floor 18 from protruding further from the floor storage portion 17, and the movable floor 18 can be positioned at the protruding position.

  After moving the movable floor 18 to the protruding position in this way, the crane wire rope is removed from the handle 18I of the movable floor 18, the wire rope is attached to the ladder 21, and the ladder 21 is moved by the crane. Transport to the vicinity of the floor 18. In this case, the ladder 21 can be lifted by a crane by itself with a good balance. For example, the ladder 21 is lifted by a crane as compared with an integrated structure in which a ladder and a part of a floor (a landing) are integrated. Stability can be improved.

  4 and 13, each contact member 22 provided on the upper end side of the ladder 21 is brought into contact with the upper surface 18A and the side surface 18B of the movable floor 18, so that the ground and the movable floor 18 are brought into contact with each other. In the meantime, the staircase-like ladder 21 is temporarily fixed in a state of being bridged.

  In this case, as shown in FIG. 13, each contact member 22 provided on the ladder 21 causes the vertical plate portion 22A to contact the side surface 18B of the movable floor 18 and the horizontal plate portion 22B to the upper surface 18A of the movable floor 18. By being brought into contact with the movable floor 18, the movable floor 18 is reliably hooked to the corners. Thereby, the ladder 21 can be temporarily fixed in a posture in which the ladder 21 is slanted between the ground and the movable floor 18, and the stability when the operator gets on and off the ladder 21 can be enhanced.

  Next, the worker ascends the ladder 21 temporarily fixed to the movable floor 18 and rises on the movable floor 18, and then, as shown in FIGS. 7, 11, and 12, the two positioning pins 19 are The pin is inserted into the pin insertion hole 17 </ b> B of the floor storage portion 17 and the pin insertion hole 18 </ b> D of the movable floor 18. Thereby, as shown in FIG. 5, the movable floor 18 can be fixed at the protruding position protruding from the floor storage portion 17.

  8 and 13, a fixing bolt 23 is inserted into the bolt insertion hole 22C of each contact member 22 engaged with the movable floor 18, and the fixing bolt 23 is inserted into the female screw hole 18H of the movable floor 18. By screwing, the ladder 21 can be firmly fixed to the movable floor 18. Furthermore, as shown in FIG. 8, the attachment work of the ladder 21 is completed by attaching the detachable handrail 18G to the handrail attachment hole 18F of the movable floor 18.

  On the other hand, for example, when removing the ladder 21 fixed to the movable floor 18 in order to disassemble the solidification processing apparatus 1, first, the operator climbs the fixed ladder 21 and moves the detachable handrail 18G shown in FIG. Remove from floor 18. Then, for example, after attaching the crane wire rope to the ladder 21, the fixing bolts 23 are removed from the respective contact members 22, so that the ladder 21 is obliquely bridged between the ground and the movable floor 18 by the contact members 22. Hold the posture.

  Next, the worker climbs the ladder 21 spanned between the ground and the movable floor 18, and removes the positioning pin 19 from the pin insertion hole 18 </ b> D of the movable floor 18 and the pin insertion hole 17 </ b> B of the floor storage portion 17. . Thereafter, the ladder 21 is lifted by a crane, and the ladder 21 is removed from the movable floor 18.

  After removing the ladder 21 from the movable floor 18 in this way, the operator attaches the wire rope of the crane to the handle 18I of the movable floor 18 using a stepladder or the like as a scaffold, and the movable floor 18 is shown in FIG. Move to the storage position. Then, as shown in FIG. 9, by using the lock member 20 to connect the engagement rod 16 </ b> A of the work floor 16 and the handle 18 </ b> I of the movable floor 18 and holding the movable floor 18 in the floor storage portion 17, The removal work of the ladder 21 is completed.

  Thus, according to the present embodiment, the movable floor 18 that moves between the retracted position and the projecting position with respect to the work floor 16 is disposed on the work floor 16 that is arranged in the vicinity of the mud hopper 4 and forms a scaffold for the worker. And a ladder 21 is detachably attached to the movable floor 18.

  In this way, by forming the movable floor 18 and the ladder 21 separately, when assembling the solidification processing apparatus 1 at the work site, the ladder 21 lifted using a crane is moved to the movable floor 18 moved to the protruding position. Can be installed. In this case, the ladder 21 can be lifted by a crane by itself with a good balance. For example, the ladder 21 is lifted by a crane as compared with an integrated structure in which a ladder and a part of a floor (a landing) are integrated. When the ladder 21 is attached to the movable floor 18, workability can be improved.

  Further, when the ladder 21 is removed from the movable floor 18, the movable floor 18 is moved to the storage position and stored on the work floor 16 side, so that the movable floor 18 does not protrude from the work floor 16, so that it can be used during transportation. The external dimensions of the work floor 16 can be reduced. For this reason, for example, as shown in FIG. 15, it is possible to load other loads (such as the base frame 2 and the dust chute 7) together with the work floor 16 on one truck 26, thereby improving transportation efficiency. Can do.

  When the movable floor 18 is moved to the projecting position, the two positioning pins 19 are inserted into the pin insertion hole 17B of the floor storage portion 17 and the pin insertion hole 18D of the movable floor 18 to thereby move the movable floor 18. Can be held in the projecting position, so that the stability when the ladder 21 attached to the movable floor 18 gets on and off can be improved.

  On the other hand, when the movable floor 18 is moved to the storage position, the engagement rod 16A of the work floor 16 and the handle 18I of the movable floor 18 are connected using the lock member 20, thereby holding the movable floor 18 in the storage position. Therefore, for example, when the solidification processing apparatus 1 is disassembled and assembled, stability when the work floor 16 storing the movable floor 18 is lifted using a crane can be improved.

  In the above-described embodiment, the positioning pin 19 inserted through the pin insertion hole 17B of the floor storage portion 17 and the pin insertion hole 18D of the movable floor 18 as a protruding position holder that holds the movable floor 18 in the protruding position. Is illustrated. However, the present invention is not limited to this, and for example, the protruding position holder may be configured by a lever, a bolt, or the like that connects between the movable floor 18 that is in the protruding position and the floor storage portion 17.

  Further, in the above-described embodiment, the annular lock member 20 that connects the engagement rod 16A of the work floor 16 and the handle 18I of the movable floor 18 is illustrated as a storage position holder that holds the movable floor 18 in the storage position. is doing. However, the present invention is not limited to this. For example, the storage position holder may be configured by pins, bolts, and the like that are inserted through the floor storage unit 17 and the movable floor 18 that is in the storage position.

It is a front view which shows the solidification processing apparatus by embodiment of this invention. It is a top view which shows a solidification processing apparatus. It is sectional drawing which shows the structure of a solidification processing apparatus roughly. It is a front view of the principal part expansion which shows the work floor in FIG. 1, a movable floor, a ladder, etc. in the state which omitted the mud hopper etc. It is a right view of the principal part expansion which looked at the work floor, the movable floor, the ladder, etc. from the arrow V-V direction in FIG. It is a right view similar to FIG. 5 which shows the state which moved the movable floor to the storing position. It is a disassembled perspective view which shows a work floor, a floor storage part, a movable floor, etc. It is a disassembled perspective view which shows a movable floor, a ladder, etc. It is a principal part enlarged view which shows the state which hold | maintained the movable floor in the storing position with the locking member. FIG. 10 is an enlarged view of essential parts similar to FIG. 9, showing a state in which the connection between the movable floor and the work floor by the lock member is released. It is a principal part enlarged view which shows the state which hold | maintained the movable floor in the protrusion position with the positioning pin. It is sectional drawing which looked at the positioning pin, the movable floor, the floor storage part, etc. from the arrow XII-XII direction in FIG. It is a principal part enlarged view which shows a movable floor, a ladder, a contact member, a fixing bolt, etc. It is a front view which shows the state which mounts and transports the support frame, mud hopper, solidification material hopper, rotary drum, etc. of a solidification processing apparatus on a truck. It is a front view which shows the state which mounts and transports the base frame, vibration screen, floor, etc. of a solidification processing apparatus on a truck. It is a front view which shows the state which loads the ladder of a solidification processing apparatus, an improved soil discharge conveyor, etc. on a truck, and is conveyed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solidification processing device 3 Support frame 4 Mud hopper 4A Opening 6 Vibrating screen (sieving device)
7 Contaminant Chute 8 Contaminant Discharge Conveyor 9 Solidifying Material Hopper 11 Rotating Drum (Agitator)
DESCRIPTION OF SYMBOLS 15 Improved soil discharge conveyor 16 Work floor 17 Floor storage part 18 Movable floor 18A Upper surface 18B Side surface 18C Roller 18D Pin insertion hole 18H Female screw hole 19 Positioning pin (projection position holding tool)
20 Locking member (storage position holder)
20A Chain 20B Key portion 21 Ladder 21A Post 21B Tread 22 Contact member 22A Vertical plate 22B Horizontal plate 22C Bolt insertion hole 23 Fixing bolt (fastening member)

Claims (3)

A frame that forms a support structure, a mud hopper that rises upward from the frame and that has an upper end side that is an opening that accommodates mud, and a mud that is provided at the opening of the mud hopper and screened through a sieve. A sieving device for dropping into an opening of a mud hopper, a solidifying material hopper provided in the frame for containing a solidifying material to be added to the mud, a mud provided in the frame and supplied from the mud hopper, and the solidifying material hopper In the solidification processing apparatus comprising a stirrer that stirs and mixes the solidified material supplied from
The frame is provided with a work floor that forms a scaffold for an operator in order to confirm the operation of the sieving device, and the work floor is provided between a projecting position protruding with respect to the work floor and a stored storage position. A movable floor that can be moved at a position is provided, and a ladder on which an operator gets on and off the ground when the movable floor is in a protruding position is detachably attached to the movable floor. Solidification processing equipment.   The projecting position holder that holds the movable floor at the protruding position and the storage position holder that holds the movable floor at the storage position are provided between the work floor and the movable floor. The solidification processing apparatus according to 1. An abutting member that holds the ladder with respect to the movable floor by contacting the upper surface of the movable floor moved to the protruding position is provided on the upper end side of the ladder, and the contact member and the movable floor are fastened. The solidification processing apparatus according to claim 1, wherein the solidification processing apparatus is configured to be fixed using a member.

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