KR102301472B1 - Apparaus for removing recycled coarse aggregate paste for reusing waste concrete - Google Patents

Abstract

The present invention relates to a device for peeling paste from recycled coarse aggregate to recycle waste concrete, wherein the device comprises: a body (10) having a drive motor (15) on a frame (11); a housing (20) connecting an upper cylindrical body (21) and a lower cylindrical body (22) in a U-shaped cross-section, and having a cover plate (23) at the upper end opening thereof; a liner (30) mounted on the inner surface of the upper cylindrical body (21) and the lower cylindrical body (22) to maintain the U-shaped cross-section; a striking member (40) having a plurality of paddles (45) on a drive shaft (41) inside the housing (20); and an auxiliary member (50) for guiding even transfer of aggregate to a striking plate (51) mounted on the lower surface of the cover plate (23). Accordingly, while appropriate friction and striking are applied to an inserted waste concrete aggregate raw material, operating conditions can be adjusted corresponding to the physical properties of the aggregate raw material. Thus, an effect of increasing the amount of coarse aggregate production along with a paste peeling rate is ensured.

Description

Recycled coarse aggregate paste peeling device for recycling waste concrete {Apparaus for removing recycled coarse aggregate paste for reusing waste concrete}

The present invention relates to waste concrete recycling, and more particularly, to a circulating coarse aggregate paste peeling device for recycling waste concrete that can generate recycled aggregate by peeling a paste mixed in waste concrete.

Various construction wastes are treated in various ways, and general treatment methods are roughly classified into landfill, incineration, and recycling. In recent years, measures to properly recycle recycled aggregates (regenerated aggregates) obtained by crushing and processing a huge amount of waste concrete, which are rapidly increasing every year, are being developed. However, in order to solve the problem of reduced durability of recycled aggregate, the stability of the supply system that maintains a certain quality or higher is a prerequisite. For this, it is important to sufficiently peel the paste at the time of generation of waste concrete.

In this regard, reference may be made to Korean Patent Registration No. 1014435 (Prior Document 1), Korean Patent Publication No. 1181163 (Prior Document 2), and Korean Patent Publication No. 1150700 (Prior Document 3).

Prior Document 1 is an outer rotating body in which a discharge hole is formed in the rear so that the washed waste aggregate and waste concrete are discharged together; an inner rotating body in which a plurality of tires installed on the outer periphery of the rotating shaft is rotationally driven in the opposite direction to the outer rotating body; It is composed of etc., and the effect of cleaning and peeling is expected quickly and stably.

Prior Document 2 is a bibim plate for rubbing waste concrete and peeling it to 20-25 mm due to frictional force; a washing rod that separates waste concrete into cement sludge, gravel, and sand; A screw with spiral blades formed on the outer periphery to transport gravel and sand; The effect of peeling off even fine cement paste is expected.

In Prior Document 3, a blade coupled to a pair of end surfaces of a pair of arms mounted on a shaft rotates, striking the reclaimed aggregate with moisture absorbed against a vertical wall, and at the same time, the blade rotates the reclaimed aggregate stacked on the cylindrical bottom to obtain reclaimed aggregate. The blows and frictions caused by causing heavy flow between them are repeated.

However, according to the above-mentioned prior literature, since the specific gravity of sand increases due to excessive friction or blow, it is insufficient to secure a coarse aggregate with high usefulness.

Korean Patent Publication No. 1014435 "Waste Concrete Peeling and Washing Device" (Published on: Nov. 29, 2010) Korean Patent Publication No. 1181163 "Method and apparatus for producing recycled aggregate using waste concrete" (published on June 13, 2012) Korean Patent Publication No. 1150700 "Paste peeling device and method using waste concrete" (Publication date: June 13, 2012)

An object of the present invention to improve the conventional problems as described above, while applying appropriate friction and blow to the aggregate raw material to be input, at the same time to increase the flexibility to enable the control of operating conditions corresponding to the physical properties of the aggregate raw material recycling waste concrete To provide a circulating coarse aggregate paste peeling device for

In order to achieve the above object, the present invention provides an apparatus for peeling paste from circulating coarse aggregate for recycling waste concrete, comprising: a main body having a driving motor in a frame; a housing connecting the upper and lower cylinders in a U-shaped cross section, and having a cover plate at the upper opening; a liner mounted to maintain a U-shaped cross section on the inner surfaces of the upper and lower cylinders; a striking member having a plurality of paddles on the drive shaft in the housing; and an auxiliary member for guiding an even transfer of the aggregate to the striking plate mounted on the bottom surface of the cover plate.

As a detailed configuration of the present invention, the liner is characterized in that it is provided with concave grooves formed at regular intervals.

As a detailed configuration of the present invention, the liner is characterized in that the vibration-proof rubber is interposed therebetween to be mounted so as to be stretchable.

As a detailed configuration of the present invention, the striking member is characterized in that it is provided with concave grooves formed at regular intervals on the paddle.

As a detailed configuration of the present invention, the striking member is characterized in that the center of the drive shaft is spaced apart from the center of the lower cylinder to maintain the eccentricity.

As a detailed configuration of the present invention, the auxiliary member is characterized in that the striking plate is arranged to form an inclination with respect to the drive shaft.

As a modified example of the present invention, the auxiliary member includes a fixed pin coupled to the striking plate, a moving block moving to the upper surface of the cover plate while connected to the fixed pin, a transfer shaft engaged to move the moving block along a set path, and a transfer shaft It characterized in that it further comprises a control handle for transmitting the rotational force to the.

As described above, according to the present invention, it is possible to apply appropriate friction and blow to the input waste concrete aggregate raw material, and at the same time, it is possible to control the operating conditions corresponding to the physical properties of the aggregate raw material. have.

1 is a block diagram showing an apparatus according to the present invention from the front;
2 is a block diagram showing the device according to the present invention from the side;
3 is a schematic view showing the device according to the present invention from the side;
4 is a block diagram showing the device according to the present invention in a plan view;
5 is a schematic diagram showing auxiliary means of the device according to the present invention;
Figure 6 is a schematic view showing a modified example of the auxiliary member of Figure 5;

Hereinafter, an embodiment of the present invention will be described in detail based on the accompanying drawings.

The present invention proposes an apparatus for peeling paste from recycled coarse aggregate for recycling of waste concrete. It targets, but is not limited to, concrete aggregate raw materials that are discarded after demolition of buildings, roads, and bridges. Physical properties such as major components (content), strength, and moisture act as process variables in the process of generating recycled aggregate by peeling the paste from the aggregate raw material.

The main body 10 according to the present invention has a structure including a driving motor 15 on a frame 11 .

Referring to FIG. 1 , a frame 11 , a footrest 13 , a driving motor 15 , and the like constituting the main body 10 are shown. The main body 10 is exemplified as having a footrest 13 on one side and the other side of the frame 11, but is not limited thereto. The driving motor 15 for applying a striking force to the aggregate raw material may be selectively installed on one side of the scaffold 13 or the other side of the scaffold 13 . The footrest 13 has a handrail 17 for operator protection.

In addition, according to the present invention, the housing 20 has a structure including the cover plate 23 at the upper opening while connecting the upper cylindrical body 21 and the lower cylindrical body 22 in a U-shaped cross section.

1 and 2, the upper cylinder 21, the lower cylinder 22, the cover plate 23 and the like constituting the housing 20 are shown. The upper cylindrical body 21 has a semicircular cross-sectional structure in which a cylinder is cut in the axial direction. The lower cylinder 22 has a rectangular box structure with openings at the top and bottom. When the upper cylinder 21 and the lower cylinder 22 are connected in a stacked state, they form a U-shaped cross section when viewed from the side. The cover plate 23 is mounted so as to open and close at least a part of the opening of the lower cylinder 22 . According to this structure, in connection with the hitting member 40 to be described later, excessive blow of the aggregate raw material and sanding due to friction are alleviated.

On the other hand, the housing 20 is provided with an inlet 25 approximately in the front of the upstream from the upper end of the upper cylinder 21, and is provided with an outlet 27 approximately at the center of the downstream side from the lower end of the lower cylinder 22 . The upstream side and the downstream side are set based on the feed direction of the aggregate raw material, and in FIG. 1 , the right side is the upstream side and the left side is the downstream side.

In addition, according to the present invention, the liner 30 is mounted on the inner surfaces of the upper cylindrical body 21 and the lower cylindrical body 22 to maintain a U-shaped cross section.

In FIG. 2 , a plurality of liners 30 are installed on the inner surfaces of the upper cylindrical body 21 and the lower cylindrical body 22 . The liner 30 mitigates the impact impact of the aggregate raw material peeled off within the housing 20 . The liner 30 is formed of a material having strength, impact resistance, abrasion resistance, and weather resistance. The liner 30 of the upper cylinder 21 uses a flat shape, but the liner 30 of the lower cylinder 22 uses an arc-shaped cross section.

As a detailed configuration of the present invention, the liner 30 is characterized in that it is provided with concave grooves 31 formed at regular intervals.

2 shows a state in which a plurality of concave grooves 31 are formed on the upper surface of each liner 30 . The concave groove 31 is preferably formed at regular intervals in the axial direction of the U-shaped cross section, but is not limited thereto. At least a portion of the concave groove 31 in each liner 30 may be formed in a different direction. In either case, the concave groove 31 of the liner 30 induces a rolling phenomenon in the process of hitting and rubbing the aggregate raw material by the striking member 40 to promote peeling and to prevent sanding of the coarse aggregate.

As a detailed configuration of the present invention, the liner (30) is characterized in that the vibration-proof rubber (36) is interposed therebetween, it is characterized in that it is mounted so as to be stretchable.

In FIG. 2 , the support shaft 33 , the fastening material 34 , and the vibration-proof rubber 36 are installed on the bottom surface of each liner 30 . The support shaft 33 is integrally connected to the bottom surface of the liner 30 . The support shaft 33 is inserted into the housing 20 directly or using a bracket (not shown) and is engaged with a fastening material 34 such as a nut at the end. The anti-vibration rubber 36 formed of an elastic (elastic) material is fitted to the support shaft 33 so as to be in close contact with the bottom surface of the liner 30 . The liner 30 prevents unnecessary crushing of coarse aggregate while assisting in peeling of the raw material of aggregate by the connection of the concave groove 31 and the vibration-proof rubber 36 .

In addition, according to the present invention, the striking member 40 has a structure including a plurality of paddles 45 on the driving shaft 41 inside the housing 20 .

1 and 3 , the driving shaft 41 , the arm 43 , and the paddle 45 constituting the striking member 40 are shown. The drive shaft 41 is rotatably accommodated in the lower cylinder 22 of the housing 20 . Arms 43 of the same length radially are arranged at regular intervals on the drive shaft 41 . A paddle 45 of the same standard is mounted to an end of each arm 43 via a fixing part 46 . The paddle 45 is formed in an approximately L-shaped cross-section using a material having physical properties equal to or greater than that of the liner 30 .

On the other hand, it is preferable that the fixing part 46 of the paddle 45 is configured to be able to change its position with respect to the arm 43 by applying a structure that is bolted onto a long hole.

As a detailed configuration of the present invention, the striking member (40) is characterized in that it is provided with concave grooves (47) formed at regular intervals on the paddle (45).

Referring to FIG. 4 , it shows a state in which a plurality of concave grooves 47 are formed on one end surface of each paddle 45 . The concave grooves 47 are preferably formed in a U-shaped cross section at regular intervals in the radial direction, but are not limited thereto. At least a portion of the concave groove 47 in each paddle 45 may be formed in a different direction. In any case, the concave groove 47 of the paddle 45 induces a rolling phenomenon of the aggregate raw material in connection with the concave groove 31 of the liner 30, thereby contributing to smooth peeling and an increase in the production rate of coarse aggregate.

As a detailed configuration of the present invention, the striking member 40 is characterized in that the center of the drive shaft 41 is spaced apart from the center of the lower cylinder 22 to maintain the eccentricity.

In Fig. 3, the lower cylinder 22 and the drive shaft 41 form an eccentricity to indicate gaps G1 and G2. The liner 30 of the lower cylinder 22 is disposed on the circumference indicated in red. Due to the eccentricity of the drive shaft 41, the end of the paddle 45 moves on the black circumference. A minimum gap G1 is maintained in a region adjacent to the inlet 25 and a maximum gap G2 is formed in a region spaced apart by 180° therefrom. As the input aggregate material moves from the gradually widening space (cap) to the narrowing space again, paste peeling is smooth.

In addition, according to the present invention, the auxiliary member 50 has a structure that induces even transfer of the aggregate to the striking plate 51 mounted on the bottom surface of the cover plate 23 .

1 and 3 , the striking plate 51 constituting the auxiliary member 50 shows a state in which the cover plate 23 is installed. The striking plate 51 extends from the bottom surface of the cover plate 23 to a length maintaining a sufficient distance from the paddle 45 . The striking plate 51 is preferably configured in two or more rows rather than thermal insulation in terms of functionality and durability to induce even transfer of aggregates. The striking plate 51 uses a material having physical properties equal to or greater than that of the cover plate 23 .

As a detailed configuration of the present invention, the auxiliary member 50 is characterized in that the striking plate 51 is disposed to form an inclination with respect to the drive shaft 41.

Referring to FIG. 5 , it shows a state in which the striking plate 51 is disposed in an inclined direction on the cover plate 23 from the front and bottom surfaces of the device. In the region adjacent to the inlet 25, the striking plate 51 forms a wide space, and in the region adjacent to the outlet 27, the striking plate 51 forms a narrow space. In the drawings, the arrow indicates that the raw material of aggregate is evenly distributed without colliding with the striking plate 51 while rotating by the paddle 45 . This smoothly proceeds the paste peeling while transferring the aggregate raw material from the widening space to the narrowing space in connection with the above-described gaps (G1) and (G2). In addition, the cover plate 23 may adjust the peeling rate according to the input amount of the aggregate raw material.

As a modified example of the present invention, the auxiliary member 50 is a fixing pin 52 coupled to the striking plate 51 , and a movable block 54 that is moved to the upper surface of the cover plate 23 while being connected to the fixing pin 52 . ), a transfer shaft 55 engaged to move the moving block 54 to a set path, and an adjustment handle 58 for transmitting rotational force to the transfer shaft 55 .

Referring to FIG. 6 , a fixing pin 52 , a moving block 54 , a transfer shaft 55 , and an adjustment handle 58 constituting a modified example of the auxiliary member 50 are shown in the front and plane of the device. The striking plate 51 is integrally coupled to the fixing pin 52 at two points. The moving block 54 is slidably engaged with the upper surface of the cover plate 23 . The fixing pin 52 passes through the cutout 23a formed in the cover plate 23 and the elongated portion 54a formed in the moving block 54 and is closely engaged by the head portion 52a. The transfer shaft 55 is rotatably supported by the support 56 at both ends and is spirally engaged with the moving block 54 . An adjustment handle 58 for the operator to turn by hand is connected to the end of the transfer shaft 55 .

As an example of the operation, when the control handle 58 is rotated according to the physical properties of the aggregate raw material fed into the inlet 25 , the movement of the moving block 54 is induced and the position of the fixing pin 52 and the striking plate 51 . /angle is changed. Accordingly, the generation of coarse aggregate is maximized by controlling the paste peeling rate while reducing the variation in the peeling rate.

The present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such variations or modifications fall within the scope of the claims of the present invention.

10: body 11: frame 13: footrest
15: drive motor 20: housing 21: upper cylinder
22: lower cylinder 23: cover plate 25: inlet
27: outlet 30: liner 31: concave groove
33: support shaft 34: fastening material 36: vibration-proof rubber
40: striking member 41: drive shaft 43: arm
45: paddle 46: fixed portion 47: concave groove
50: auxiliary member 51: striking plate 52: fixing pin
54: moving block 55: feed shaft 56: support
58: control handle

Claims (7)

In an apparatus for peeling paste from circulating coarse aggregate for recycling waste concrete: a main body 10 having a drive motor 15 in a frame 11; an upper cylindrical body 21 and a lower cylindrical body 22 in a U-shaped cross section A housing 20 connected to and having a cover plate 23 at an upper opening; A liner 30 mounted on the inner surfaces of the upper cylinder 21 and the lower cylinder 22 to maintain a U-shaped cross section; The housing ( 20) a striking member 40 having a plurality of paddles 45 on the drive shaft 41 in the interior; and an auxiliary member 50 for guiding an even transfer of aggregate to the striking plate 51 mounted on the bottom surface of the cover plate 23;
The liner 30 is mounted so as to be able to expand and contract through a vibration-proof rubber 36,
The striking member (40) is a circulation coarse aggregate paste peeling device for recycling of waste concrete, characterized in that provided with concave grooves (47) formed at regular intervals on the paddle (45). The method according to claim 1,
The liner (30) is a circulation coarse aggregate paste peeling device for recycling waste concrete, characterized in that provided with concave grooves (31) formed at regular intervals. delete delete The method according to claim 1,
The striking member 40 is a circulation coarse aggregate paste peeling device for recycling waste concrete, characterized in that the center of the drive shaft 41 is spaced apart from the center of the lower cylinder 22 to maintain eccentricity. The method according to claim 1,
The auxiliary member (50) is a circulation coarse aggregate paste peeling device for recycling of waste concrete, characterized in that the striking plate (51) is disposed to form an inclination with respect to the drive shaft (41). The method according to claim 1,
The auxiliary member 50 includes a fixing pin 52 coupled to the striking plate 51 , a movable block 54 that is moved to the upper surface of the cover plate 23 while being connected to the fixing pin 52 , and a movable block 54 . Circulating coarse aggregate paste peeling apparatus for recycling waste concrete, characterized in that it further comprises a conveying shaft (55) engaged to move the to the set path, and an adjustment handle (58) for transmitting a rotational force to the conveying shaft (55).

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