KR101305476B1 - Recycled aggregates in cement paste detachment device - Google Patents

Abstract

PURPOSE: A cement paste exfoliation apparatus of recycled aggregates using the centrifugal force of fluid is provided to have an effect to have cement paste or mortar exfoliated by collision of recycled aggregates or friction generated by contact of rhomboidal protrusions and recycled aggregates. CONSTITUTION: A cement paste exfoliation apparatus of recycled aggregates using the centrifugal force of fluid is composed by forming a water supply pipe (110) supplying water and an inlet port (21) inputting recycled aggregates in the upper part of a main body (20), and an outlet port (22) in the lower part of the opposite site to the inlet port; forming a rotary shaft (40) rotating with the power delivered from a motor in the inside of the main body; repeatedly installing a first arm (50), a second arm (51), a third arm (52), a fourth arm (50'), a fifth arm (51') and a sixth arm (52') in order which are combined by bolt and nut with an interval from the rotary shaft to face others; uniting each band blade (60)(61)(62) on the plane on the end sides of the first and fourth arms, the second and fifth arms, and the third and sixth arms having the same inclination angle to form into a step shape; and attaching a friction plate formed with multiple rhomboidal protrusions on the inner surface of the main body.

Description

Recycled aggregates in cement paste detachment device

The present invention relates to a cement paste peeling apparatus of recycled fine aggregate using centrifugal force of a fluid, and more preferably, by means of band-shaped blades which are respectively coupled to the arm and the end side plane of the arm mounted with the same inclination angle on the rotation axis. Cement paste and mortar adhering to the surface of reclaimed fine aggregates by friction with centrifugal force mixed with water and mixed with recyclable fine aggregates for producing ready-mixed concrete. Is for peeling off and at the same time improving the shape.

In general, fine aggregate means less than 5mm in diameter, and the standard specification of building construction by Ministry of Construction and Transportation defines aggregate as having passed more than 85% by weight ratio.

This is because 15% of margin is set because fine aggregates are not completely sifted in the field and sometimes aggregates larger than 5mm are included.

The aggregate aggregates used in the back of Seoul metropolitan area where the finest aggregates are used are mainly composed of submerged sands produced in Seoksan or sea sands collected from the sea, and they are used to meet the demands used in the concrete industry. Difficulties arise in collecting and producing aggregates due to problems.

On the other hand, construction wastes generated by construction work are recommended to be used as recycled aggregates for concrete in terms of eco-friendliness and recycling of resources. Quality certification includes road construction, concrete and asphalt concrete. In general, construction waste intermediate treatment companies are certified for road construction or asphalt concrete, which does not require much technical skills. As of August, it is limited to six companies.

In addition, construction wastes are mostly generated in urban areas, but road construction in urban areas is not much, so recycling to concrete recycle aggregates is recommended, but there is a problem that economic production is difficult due to lack of technology.

In order to solve this problem, as a prior art, Patent Registration No. 10-0870986 has been proposed an apparatus for peeling the cement component to the regenerated fine aggregate and improve the particle size, which is the aggregate flows together with the water into the peeler Due to the impact bar and centrifugal force, the flow of the impact panel and the outer wall liner did not move toward the outlet due to gravity and feed rate.The leak occurred in the bolted outer wall liner for ease of replacement. There was a problem that it is used as a one-time use, even though the base material is left uncontrolled, and after the end of daily use, the residue remains inside the equipment, causing problems such as corroding the equipment.

In addition, the existing regenerated fine aggregate peeling device used a disk-type rotary friction method or a reciprocating friction method, which produces only high-quality fine aggregates because the intervals of the friction plates are fixed to be effective only on fine aggregates of the same fine aggregates. In order to solve this problem, the cleaning process may be repeatedly performed several times, and satisfactory results were not obtained.

 Therefore, most of the recycled fine aggregate equipment currently used is produced through the crushing (1st, 2nd, 3rd), screening, and washing stages. The cement paste and mortar component attached to the small pieces of concrete crushed to less than 5mm are not completely separated. Even if the product is certified for fine aggregate quality, it cannot be used for manufacturing ready-mixed concrete.

Thus, a cement paste stripping apparatus equipped with a plurality of impact bars and impact panels of Patent No. 10-0943230 has been developed and disclosed.

However, the above configuration induces impact fracture and friction fracture by impact plate part of drum type cement paste peeling part and washing plate protrusion of outer wall liner, through cement paste peeling effect and fracture of recycled fine aggregate through circumferential rotational inertia. Although the particle size could be improved, the rotating recycled aggregate hits the washing plate protrusion formed on the outer wall liner, which causes the washing plate protrusion to be frequently worn out or broken, and thus the inconvenience of having to stop operation for frequent replacement does not improve the work efficiency. It was.

[Prior Art Literature]

1. Patent 10-0943230: Cement paste stripping device equipped with multiple impact bars and impact panels

2. Patent 10-0870986: Separation method and apparatus for effectively removing mortar and paste from intermediate treatment of construction waste

3. Patent Publication 10-2011-0130824: Mortar peeling device of the circulation aggregate

The present invention was created in order to solve the above problems, by crushing the waste concrete, which is a construction waste, to move the recycled residual aggregate of less than 8mm separated in the screening process to the washing process, and to the horizontal cylindrical in the process of washing Arms mounted at the same inclination angle on the rotation axis inside the main body of the formed peeling apparatus and blades coupled to the end side plane of the arm rotate at high speed, and the recycled aggregate supplied with water by the rotation of the blades rotates with centrifugal force. The purpose of the present invention is to allow the cement paste or mortar adhering to the surface of reclaimed fine aggregates to be peeled off by friction.

And when the blade rotating at 250 ~ 300rpm rotates once, the regenerated fine aggregate is repeatedly generated on the rhombic protrusion formed on the friction plate attached to the inner surface of the main body, so that the cement paste or mortar attached to the surface of the fine recycled aggregate is generated. It aims to improve the shape of the finely regenerated fine aggregates generated by the shredding process at the same time.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As shown in Figure 1, the cement paste peeling apparatus of the regenerated fine aggregate according to the present invention, the water supply pipe 110 for supplying water to the upper portion of the main body 20 formed horizontally on the upper portion of the support (10) and regeneration An inlet 21 for injecting aggregate is formed, and a discharge port 22 is formed at a lower side opposite to the inlet 21, and a rotating shaft rotates by receiving power of the motor 30 from the inside of the main body 20. And a first arm 50 which is fastened to the rotation shaft 40 vertically at opposite intervals by the bolt nut 50c, and which is fastened to the left by the bolt nut 50c. 2 arm 51, the third arm 52 which is fastened oppositely by the bolt nut 50c inclined to the right, the fourth arm 50 'which is fastened oppositely by the bolt nut 50c vertically, to the left 5th arm 51 'fastened opposingly by bolt nut 50c, and inclined to the right side The first arm 50, the fourth arm 50 'and the second arm having the same inclination angle are repeatedly installed in the order of the sixth arm 52' fastened oppositely by the nut 50c. 51 and the fifth arm 51 'and the band-shaped blades 60, 61 and 62 are respectively coupled to the end-side plane 50b of the third arm 52 and the sixth arm 52'. It is formed in a step shape, characterized in that configured by attaching a friction plate 70 formed with a plurality of rhombic projections 80 on the inner surface of the main body 20.

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According to the present invention having the above characteristics, when the band-shaped blades respectively coupled to the arm and the end side plane of the arm installed with the same inclination angle on the rotating shaft rotating inside the main body rotate, the water and the inside of the main body acting as a centrifugal force. By rotating the recycled regenerated aggregates added together, the regenerated regenerated aggregates collide with each other, or a plurality of rhombic protrusions formed on the friction plate attached to the inner surface of the body and the regenerated residual aggregates have the effect of causing the cement paste or the mortar to peel off. The amount of water input is greater than twice the fine aggregate effect.

In addition, when the belt-shaped blades rotate, the material with a large specific gravity goes out by the centrifugal action. When the centrifugal force is applied in the state mixed with the water stored in the main body, the regenerated fine aggregate in the water rotates outward, and thus comes into contact with the friction plate. In this case, the water rotated by the centrifugal force is pushed from behind, and the recycled fine aggregate has the effect of maximizing the frictional effect than peeling cement paste or mortar, rather than contacting the friction plate alone.

In addition, the present invention has the effect of eliminating the problem that the peeling effect appears only in the large aggregate of the aggregate, such as in the disc rotary peeler or reciprocating friction method because all the recycled residual aggregate is independently rubbed regardless of the size of the recycled residual aggregate.

In addition, the cement paste, which is separated by friction while being in contact with the diamond plate projection of the friction plate, is directly washed by water, so when the next friction plate is hit, the friction surface is rubbed with a new surface.

1 is a front view showing a cement paste peeling apparatus of the regenerated fine aggregate according to the present invention.
2 is a side view of the cement paste peeling apparatus of the regenerated fine aggregate according to the present invention.
Figure 3 is a side view showing a state in which the blade is formed at intervals on the rotating shaft according to the present invention.
Figure 4 is a front view showing a friction plate according to the present invention.
Figure 5 is a bottom view showing a state in which the long hole is perforated on the blade according to the present invention.
Figure 6 is a schematic cross-sectional view showing a state that the blade mounted on the pair of arms in accordance with the present invention rotates in the body.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the cement paste peeling apparatus of the regenerated fine aggregate using the centrifugal force of the fluid according to the present invention will be described in detail.

The present invention is a peeling apparatus 100 for peeling cement paste or mortar adhered to the surface of the recycled residue aggregate in the process of crushing the waste concrete, which is the construction waste, and moving the recycled residue aggregate of 8 mm or less separated in the screening process to the washing process. .

As shown in FIG. 1, the peeling apparatus 100 is horizontally mounted on the upper portion of the support 10 to form a cylindrical body, and the upper one side of the main body 20 is configured to input water and recycled fine aggregates. The inlet port 21 and the water supply pipe 110 are formed, and the outlet port 22 is formed in the lower side opposite the inlet port 21 for discharging the cement residue or the mortar from which the mortar is peeled off. do.

At this time, when the regenerated aggregate is introduced into the main body 20 in the inlet 21, the blade 60 is coupled to the arm and the end side plane 50b of the arm rotated at the same inclination angle on the rotating shaft 40, respectively. To prevent the breakage of the 61 and 62, delay plates 90 and 90 'are formed to be inclined so as to be inclined to be formed up and down in opposite directions, and the discharge port 22 forwards the recycled fine aggregate. There is no device to transfer to, but the discharge of the recycled residue aggregate is configured to be discharged through the outlet 22 naturally along the flow of water introduced together into the body 20 after the peeling is completed.

In addition, a rotating shaft 40 is formed at the inner center of the main body 20 to receive power from the motor 30 and rotate. At this time, in order to prevent the load from being applied while the rotating shaft 40 rotates, the motor 30 is connected to one end side of the rotating shaft 40 or connected to both end sides of the rotating shaft 40, respectively.

In addition, a plurality of arms 50, 51, 52, 50 ′, 51 ′, 52 ′ are repeatedly mounted on the rotating shaft 40 at intervals.

The arms 50, 51, 52, 50 ′, 51 ′, 52 ′ are formed to be symmetrically separated about the rotation shaft 40, but are formed by the bolt nut 50c on the rotation shaft 40. In order to be integrally coupled, the inner surfaces of the arms 50, 51, 52, 50 ', 51', 52 'are formed in a semicircular shape 50a to fit the diameter of the rotation shaft 40. The width is narrower toward the front, and the plane 50b is formed on the end side. Therefore, when the separated arms are coupled to each other on the rotation shaft 40 by opposing to each other, and then coupled by the bolt nut 50c, the arms 50, 51, 52, 50 ', 51', and 52 'are combined. It is formed at intervals on the rotating shaft 40, these arms are repeatedly mounted on the rotating shaft.

At this time, the arms formed at intervals are not formed in one wire horizontally with respect to the rotation axis 40, as shown in FIG. 3, and are alternately configured by alternately changing angles with each other.

That is, the first arm 50 is vertical, the second arm 51 is inclined to the left, the third arm 52 is inclined to the right, and the fourth arm 50 'is vertical, and the fifth arm 51 is vertically inclined. ') Is inclined to the left and the sixth arm 62' is repeatedly inclined to the right to be sequentially coupled to the rotating shaft 40.

Then, among the arms 50, 51, 52, 50 ', 51', 52 'coupled to each other at different angles to the rotary shaft 40, The band-shaped blades 60 are respectively engaged by bolts 51c to the plane 50b on the end side of the fourth arm 50 'which is vertically engaged. In addition, a band-shaped blade 61 is coupled to the plane 50b on the end side of the second arm 51 inclined to the left and the fifth arm 51 'to be inclined to the left by bolts 51c. . In addition, a band-shaped blade 62 is coupled to the plane 50b on the end side of the third arm 52 inclined to the right and the sixth arm 52 'to be inclined to the right by bolts 51c. .

Therefore, the blades 60, 61, 62 coupled to the arms 50, 50 ', 51, 51', 52, 52 'are horizontal in the longitudinal direction of the rotation shaft 40. A band is formed to form a step by step.

In addition, a plurality of long holes 60 ', 61', 62 'are drilled on the surfaces of the blades 60, 61, 62, and the blades 60, 61, 62 are rotated by the rotating shaft 40. When it rotates, the water is discharged without being resisted by the pressure of the water.

In addition, the inner surface of the main body 20 is a friction plate 70 so that the regeneration of the aggregate aggregate rotated by the blades 60, 61, 62 coupled to the rotating shaft 40 can be peeled off by friction. Attach. At this time, a plurality of rhombic protrusions 80 are formed on the surface of the friction plate 70.

In addition, the friction plate 70 is configured to be separated into a plurality (130 pieces) in order to facilitate attachment by the screw (74) to the inner surface of the cylindrical body 20. At this time, both sides of the separated friction plate 70 is formed to be inclined with each other. Therefore, since both sides of the friction plate 70 are formed to be inclined, when the friction plate 70 is coupled to the inner surface of the main body 20, the inclined surface 71 and the inclined surface 71 are brought into contact with each other, and then the screw 74 is attached. Since the friction plate 70 can be easily attached to the main body 20, it can be prevented from being separated.

When explaining the embodiment of the operation state of the cement paste peeling apparatus of the regenerated residue aggregate according to the present invention configured as described above based on Figure 1, first to recycle the waste concrete, which is a construction waste, separated from the screen process 8 mm or less recycled residue aggregate Move to the peeling device. At this time, in order to peel off the cement paste or mortar adhering to the reclaimed fine aggregate, regenerated aggregate is added to the peeling apparatus 100 together with water.

That is, when the rotary shaft 40 is rotated after the motor 30 is driven by supplying power to the peeling apparatus 100, the water supply pipe 110 formed at the inlet 21 of the main body 20 is rotated. After the water is supplied, recycled fine aggregate is introduced into the inlet 21 after about one minute.

At this time, the regenerated fine aggregate is contacted with the retardation plate 90 formed up and down inclined to face each other in the inlet 21 to be firstly delayed and transported to the lower side, and then contacted with the second retarder 90 'to be delayed. It is injected into the inside of 20).

In addition, the inside of the main body 20 receives the power of the motor 30, the rotary shaft 40 is rotated and at the same time a plurality of arms 50, 50 ', 51 mounted at intervals on the rotary shaft 40, 51 ', 52 and 52' rotate.
Therefore, when the recycled aggregate is introduced into the main body 20, the first arm 50, the fourth arm 50 ′, the second arm 51, and the first arm 50 mounted at the same inclination angle at intervals on the rotating shaft 40 are formed. The blades 60, 61 and 62, which are stepped on the five arms 51 ', the plane 50b on the end side of the third arm 52 and the sixth arm 52', respectively, are formed in a stepwise manner to rotate the water. Regenerates and recycles fine aggregates, and at the same time peels. In addition, the water introduced into the main body 20 must supply at least two times the volume of the regenerated fine aggregates to constitute a pipe and a valve having a sufficient size.

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At this time, when the regenerated aggregate and water introduced into the main body 20 are mixed with the strip-shaped blades 60, 61 and 62, the fluidity is excellent, so the blades are suitable for generating centrifugal force due to the rotational force. In addition, the blades 60, 61, 62 are perforated in a plurality of holes 60 ', 61', 62 'on the surface, and the holes have a gradient 60a, 61a, 62a formed therein. Therefore, it is possible to reduce the loss of power due to the resistance of the water during rotation, and also to cause friction in the regenerated residue aggregate as some of the regenerated residue mixed with the water escapes through the long holes 60 ', 61' and 62 '. do.

Therefore, the regenerated fine aggregate rotated by the blades 60, 61, and 62 generates friction while passing through the long holes 60 ', 61', and 62 'of the blades, and on the inner surface of the main body 20. The friction is made in contact with the rhombic projection 80 of the attached friction plate 70, and the cement paste or mortar that is attached to the surface of the recycled fine aggregate is smoothly peeled off.

Not only that, since a large number of rhombic protrusions 80 are formed in the friction plate 70, the friction efficiency due to repeated friction can be maximized, and the paste, etc., separated by friction can be immediately washed by rotating water. When the regenerated fine aggregate hits the next friction plate 70, the regenerated friction comes into contact with the new surface, thereby providing excellent peeling effect due to repeated friction.

In addition, the gap between the ends of the blades 60, 61, 62 and the internal friction plate 70 is maintained at 8 mm to prevent the recycled fine aggregates from being crushed in the middle of the gap. The improvement of the shape is achieved by.

The first arm 50, the fourth arm 50 ', the second arm 51, the fifth arm 51', and the first arm 50 and the fourth arm 50 'mounted with the same inclination angle on the rotation shaft 40 by the above-described action The blades 60, 61, and 62 mounted on the plane 50b on the end side of the third arm 52 and the sixth arm 52 'rotate, respectively, to rotate the water and the reclaimed fine aggregate to the surface of the regenerated fine aggregate. When the outlet 62 is opened after the peeling action of the cement paste or the mortar adhered to it, the recycled aggregate aggregated with water is naturally discharged while moving forward along the water flow. At this time, the blades 60, 61, 62 are repeatedly mounted on the rotating shaft 40 continuously.
In other words, the peeling apparatus of the present invention is a continuous operation method, the recycled aggregate aggregated into the inlet 21 with water is made by peeling while rotating by centrifugal force. Since the discharge port 22 is moved in the direction of the discharge is made at the same time the continuous centrifugal rotation.

In addition, the outlet 22 maintains a sufficient size and angle so that the recycled fine aggregate is worn and washed by friction, so that there is no problem in discharging in a state of high turbidity and viscosity.

Although the present invention having been described above has been described with reference to a limited number of embodiments, it is to be understood that the present invention is not limited thereto and that various changes and modifications may be made without departing from the spirit and scope of the present invention by those skilled in the art. Various modifications and variations are possible within the scope of the appended claims.

10. Support 20. Body
21.Inlet 22, outlet
30. Motor 40. Rotating shaft
50, 50 ', 51, 51', 52, 52 '. cancer
50a. Semicircular 50b. plane
50c. Bolt Nut 51c. volt
60, 61, 62.blade
60 '. 61 ', 62'. Longevity 60a, 61a, 62a, gradient
70. Friction plate 74. Screws
80. Rhombic projection 90, 90 '. Retarder
100. Peeling device 110. Water supply pipe

Claims (7)

In the upper portion of the main body 20 formed in a horizontal cylindrical shape on the upper portion of the support 10 is formed a water supply pipe 110 for supplying water and an inlet 21 for injecting recycled aggregates, the opposite side of the inlet 21 The outlet 22 is formed in the lower portion,
Inside the main body 20 to form a rotating shaft 40 is rotated by receiving the power of the motor 30,
The first arm 50 is fastened oppositely by the bolt nut 50c at intervals on the rotary shaft 40, the second arm 51 is fastened oppositely by the bolt nut 50c inclined to the left side, The third arm 52 which is fastened oppositely by the bolt nut 50c to be inclined to the right, and the fourth arm 50 'which is fastened oppositely by the bolt nut 50c to the right, and the bolt nut 50c to be inclined to the left Repeatedly installed in the order of the fifth arm 51 'fastened opposite to each other, and the sixth arm 52' fastened opposite by the bolt nut 50c inclined to the right.
The first arm 50 and the fourth arm 50 'having the same inclination angle, the second arm 51 and the fifth arm 51', the third arm 52 and the sixth arm 52 '. To combine the band-shaped blades 60, 61, 62, respectively, in the plane 50b on the end side of
The cement paste peeling apparatus of the regenerated fine aggregate using the centrifugal force of the fluid, characterized in that the friction surface 70 formed by attaching a plurality of rhombic projections (80) formed on the inner surface of the main body (20). delete The method of claim 1,
The friction plate 70 is separated into a plurality of replaceable when worn to form the inclined surface 71 to be inclined both sides, characterized in that configured by attaching to the inner surface of the main body 20 by the coupling of the screw (74). Cement paste stripping device of reclaimed fine aggregate using centrifugal force of fluid. The method of claim 1,
A plurality of long holes (60 ', 61', 62 ') is formed on the surface of the blades (60) (61) (62), the cement paste peeling apparatus of the recycled fine aggregate using the centrifugal force of the fluid. The method of claim 1,
The retarder cement paste peeling apparatus using the centrifugal force of the fluid, characterized in that formed in the inlet 21 formed in the main body 20, the retardation plate 90, 90 'is formed to be inclined up and down on the opposite side. The method of claim 1,
The inner surfaces of the arms 50, 51, 52, 50 ′, 51 ′, 52 ′ are formed in a semicircular shape 50a so as to match the diameter of the rotation shaft 40 and are formed by the bolt nuts 50c. They are formed to be coupled to face each other, and formed into a plane 50b so that the width thereof becomes narrower toward the front, and the blades 60, 61, 62 are brought into close contact with the plane 50b to be joined by bolts 51c. Cement paste stripping apparatus of reclaimed fine aggregate using the centrifugal force of the fluid, characterized in that configured to. The method of claim 1,
Cement paste peeling apparatus of the regenerated fine aggregate using the centrifugal force of the fluid, characterized in that configured to inject water into the body 20.

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