JPH061240Y2 - Perforated drum with gravel feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a perforated drum equipped with a gravel feeding device used in an aggregate collecting device.

[Prior Art] The ready-mixed concrete used for construction work is usually prepared at a ready-mixed concrete production plant outside the construction site, and is brought into the construction site by using a transportation means such as a concrete mixer truck. Is greater than the amount of ready-mixed concrete required in advance for the loss of ready-mixed concrete at the construction site, etc. When the amount was less than that, the remaining raw concrete was dumped to an industrial waste treatment plant using transportation means such as a concrete mixer truck, or brought back to the raw concrete production plant.

Conventionally, when the ready-mixed concrete is brought back to the ready-mixed concrete production plant, a device described in Japanese Patent Publication No. 57-38952 as a device for collecting gravel, sand, etc. forming aggregate of the ready-mixed concrete from slurry-like ready-mixed concrete There is.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional device, when collecting aggregate from fresh concrete, it is not possible to separately collect gravel and sand and the like, and separate gravel and sand and the like separately. It requires another device to sort.

The present invention solves the above-mentioned problems, and an object thereof is to separately collect gravel and sand from fresh concrete.

[Means for Solving the Problems] According to the present invention, a drum body provided with mirror plates at both ends of a tubular body having a large number of holes, and a slurry provided on one mirror plate so as to communicate the inside and outside of the drum body. A supply port, a solids discharge port provided with the other end plate so as to communicate the inside and outside of the drum body, and a required number of guides provided inside the drum body in a spiral shape extending in the axial direction of the drum body. Plate and
A plurality of gutter-shaped solid material guide paths extending radially from the inner peripheral surface of the drum body to the solid material discharge port and fixed to the other end plate, respectively, and rotating the drum body about an axis. It is equipped with a movable support structure.

[Operation] When the drum main body is rotated and raw concrete whose fluidity is mixed by mixing water is introduced into the drum main body from the slurry supply port, the raw concrete is guided by the rotation of the drum main body. Is transferred to the solid material discharge port.

Of the raw concrete, sand, which is smaller in shape than gravel, flows out of the device through the holes in the drum body together with the water mixed with the raw concrete, and only the gravel gathers inside the drum body at the end on the solid matter discharge side. Furthermore, the gravel is discharged to the outside of the drum body from the solid matter discharge port through the solid matter guide path by the rotation of the drum body.

Therefore, it is possible to separately collect gravel and sand.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 13 show an embodiment of the present invention.

Two expanded metal 1 formed in a cylindrical shape are connected to each other through a punching metal 2 formed in a cylindrical shape so as to form a cylindrical shape, and an opening 3a is formed at an end of each expanded metal 1 which is not connected to the punching metal 2. End plates 4a and 4b each having a horizontal axis 3 are fixed to each other to form a perforated drum 5 (drum body) having a horizontal axis l.

A cylindrical slurry supply port 6 is connected to the end plate 4a at one end of the porous drum 5, and a trumpet-shaped solid material discharge port 7 is connected at the other end so that the inside and outside of the porous drum 5 can communicate with each other through the openings 3a or 3b. The slurry supply port 6 is fixed and fitted into the roller bearing 9 provided in the frame 8, and the solid matter discharge port 7 is placed on the roller 10 pivotally supported by the frame 8.

A sprocket 11 is fixed to the outer periphery of the slurry supply port 6, and the sprocket 11 is a sprocket 13 of a motor 12 and a chain belt 14 arranged at required positions of the frame 8.
Is connected so as to rotate clockwise as viewed from the slurry supply port 6 side.

At the lower part of the frame 8, there is provided a water tank 15 that can include a lower half of the axis l of the porous drum 5, and an inner bottom plate 30 of the water tank 15 has an inner diameter larger than the outer diameter of the porous drum 5. It is curved along the circumferential direction.

Furthermore, at the required position of the water tank 15, the overflow tank 31
Is provided.

A plurality of angles 17 extending in parallel to the axis l of the porous drum 5 are fixed inside the porous drum 5 at required intervals in the circumferential direction, and the inner surface of the porous drum 5 is directed from the slurry supply port 6 toward the solid matter discharge port 7. A guide plate 16 formed in a predetermined shape on the intersection of the clockwise spiral and the angle 17 is fixed along the spiral.

Inside the perforated drum 5 of the end plate 4b, a plurality of solid material guide paths 18 extending in the radial direction of the perforated drum 5 are fixed in the circumferential direction at a required interval.

The solid material guide path 18 is formed in a gutter shape from the steel plate 20 and the expanded metal 21, and the opening portion 19 of the gutter is arranged so as to face the rotating direction of the multi-drum 5, and the gutter An end of the expanded metal 21 forming the bottom portion near the outer circumference of the end plate 4b is bent in the direction of rotation of the porous drum 5.

A guide plate 22 extending to the solids discharge port 7 is fixed to an end of the solids guide path 18 near the axis l of the porous drum 5, and the solids discharge port 7 has an inner circumference facing the outside from the inside of the porous drum 5. The spiral guide screw 23 extending clockwise is fixed.

A required number of buckets 24 are provided in a portion formed by the punching metal 2 on the outside of the perforated drum 5 and an opening 25 of the bucket 24
Is fixed so as to face the rotating direction of the perforated drum 5, and the shooter 26 is arranged at a required position of the frame 8 so that the inlet of the shooter 26 can face the opening 25 of the bucket 24.

Of the portion of the porous drum 5 formed by the expanded metal 1, a spiral guide screw 28a extending clockwise from the slurry supply port 6 to the solids discharge port 7 outside the expanded metal 1 near the slurry supply port 6. Is fixed via flat steel 29a, and similarly, a spiral guide screw 28b extending counterclockwise from the solid matter discharge port 7 toward the slurry supply port 6 is flattened outside the expanded metal 1 near the solid matter discharge port 7. It adheres via steel 29b.

The radial outer ends of the guide screws 28a, 28b hold a slight gap with respect to the inner bottom plate 30 of the water tank 15.

Next, the operation of the present invention will be described.

When collecting aggregates such as gravel and sand from raw concrete, the motor 12 is driven and the sprocket 13 and chain belt 1
4. The porous drum (5) is rotated through the sprocket (11), and raw concrete whose fluidity is improved by mixing water is flowed into the porous drum (5) through the slurry supply port (6).

The raw concrete that has flowed into the perforated drum 5 is the perforated drum 5
With the rotation of the guide plate 16, it is transferred toward the end plate 4b by the guide plate 16.

Among the fresh concrete, sand and cement flow out into the water tank 15 through the holes of the perforated drum together with water mixed with the fresh concrete, and only the gravel is transferred to the vicinity of the end plate 4b.

The gravel transferred to the vicinity of the end plate 4b forms an expanded metal 21 forming a solid material guide path 18 as the perforated drum 5 rotates.
It is scooped up by the solids and is guided by gravity
It moves in the direction of the axis l of the perforated drum 5 along 18, is guided to the solid matter discharge port 7 via the guide plate 22, and is discharged to the outside of the apparatus by the guide screw 23 in the solid matter discharge port 7.

On the other hand, the sand and the cement that have flowed out of the perforated drum 5 into the water tank 15 together with the water have larger particles than the cement, and the settling sand is deposited on the inner bottom plate 30. 28a and 28b transfer the end plates 4a and 4b in the direction toward the center of the porous drum 5.

The sand transferred to the central part of the perforated drum 5 is scooped up by the bucket 24 as the perforated drum 5 rotates, and discharged by the shooter 26 to the outside of the apparatus.

Furthermore, since the cement in the fresh concrete that has flowed into the porous drum 5 has smaller particles than sand, it floats in the water in the water tank 15 and then flows into the overflow tank 31 mixed with the water that overflows from the water tank 15. Then, after it is transferred from the overflow tank 31 to a precipitation tank (not shown), it precipitates in the precipitation tank with the passage of time.

Incidentally, the perforated drum provided with the gravel feeding device of the present invention is not limited to the above-mentioned embodiment, but can be used for collecting solids from slurries other than ready-mixed concrete. Needless to say, various changes can be made without departing from the range.

[Effects of the Invention] As described above, according to the perforated drum including the gravel feeding device of the present invention, the aggregate is collected from the fresh concrete, and the gravel and the sand in the aggregate are separately collected. Because it is possible, it is not necessary to sort the collected aggregate with another device,
It has an excellent effect that gravel and sand can be reused immediately.

[Brief description of drawings]

FIG. 1 is an illustration of an embodiment of the present invention, and FIG. 2 is an illustration of FIG.
II-II arrow view, FIG. 3 is a III-III arrow view of FIG. 1, 4
FIG. 7 is an explanatory view of an aggregate collecting apparatus using the perforated drum shown in FIG. 1, FIG. 5 is a view taken along the line VV of FIG. 4, FIG. Is a view taken along the line VII-VII in FIG. 6, FIG. 8 is an explanatory view in the vicinity of the solid material discharge port, and FIG.
Figure IX-IX arrow view, Figure 10 is a XX arrow view of Figure 9,
11 is a view taken along the line XI-XI of FIG. 9, and FIG. 12 is a view of FIG.
XII-XII arrow view, FIG. 13 is a XIII-XIII arrow view of FIG. In the figure, 5 is a perforated drum (drum body), 6 is a slurry supply port, 7 is a solid material discharge port, 16 is a guide plate, and 18 is a solid material guide path.

Continuation of front page (72) Inventor Maki Isou Goto 1-10-12 Honmachi, Sendai-shi, Miyagi Towa Koki Co., Ltd. (56) References Showa 59-24152 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A drum main body having end plates of a cylindrical body having a large number of holes, a slurry supply port provided on one end plate so as to communicate the inside and the outside of the drum main body, and the drum main body. Of the solid body discharge port provided with the other end plate so as to communicate the inside and the outside of the drum body, a predetermined number of spirally provided guide plates extending in the axial direction of the drum body on the inner side of the drum body, and the drum body A plurality of gutter-shaped solid material guide paths radially extending from the inner peripheral surface to the solid material discharge port and fixed to the other end plate, respectively, and rotatably supporting the drum main body about an axis. A perforated drum equipped with a gravel feeding device characterized in that