KR101492212B1 - Apparatus and method for crushing and grinding aggregate - Google Patents

Abstract

The present invention has a purpose of providing a method and an apparatus for manufacturing circulation aggregated by crushing and peeling, which crushes wastes and aggregates to reuse and peels off a cement paste, and obtains circulation aggregates having aggregates with different particle sizes (e.g. 8 mm or less, 9-10 mm, and 11-20 mm) mixed in a certain ratio by using one apparatus. The apparatus for manufacturing circulation aggregated by crushing and peeling according to the present invention comprises a case including an inlet and outlet; a driving means installed on the outer part of the case; a crushing and peeling unit installed inside the case and crushing wastes put in through the inlet of the case into a small particle size, and peeling paste on the surface off by receiving a power from the driving means; and a particle size control means installed on the upper part of the outlet of the case, and controlling the particle size of circulation aggregates through control of the gap to the crushing and peeling unit.

Description

[0001] APPARATUS AND METHOD FOR CRUSHING AND GRINDING AGGREGATE [0002]

The present invention relates to a coarse aggregate production apparatus, and more particularly, to a coarse aggregate production apparatus for separating waste materials or aggregates so as to be reusable, separating the cement paste, and using recycled aggregate materials having different particle sizes (for example, The present invention relates to an apparatus and a method for manufacturing a recycled aggregate by wave crushing and peeling, which can obtain recycled aggregate in which a predetermined ratio of 9 to 10 mm and 11 to 20 mm is mixed.

Although construction waste is being discharged in large quantities due to the aging of buildings, due to the lack of landfills and illegal dumping, the destruction of the natural environment is rampant. In accordance with the Act on the Promotion of Resource Conservation and Recycling, And recycling.

As a result, several companies are producing recycled aggregate, but due to lack of technology and awareness, recycling of recycled aggregate is not mandatory, and each construction company avoids recycled aggregate, so recycled aggregate is limited to use as soil and embankment. Which is a waste of enormous resources.

In particular, cement paste (hereinafter abbreviated as "paste") is attached to the surface of the waste concrete, and the coating material of the chemical is coated on the surface of the waste ascon. Since the paste and the coating material lowers the quality of the recycled aggregate, it must be removed during the regeneration of the aggregate. Conventional construction waste recycling technology usually relies on pulverizing technology to adjust the size, so that the surface of the recycled aggregate is coated with paste and coating material to be. As such, the aggregate coated with the paste and the coating material is not used as an aggregate for a concrete mixer, but has a disadvantage that it can only be used for a simple landfill or an auxiliary soil layer.

In order to solve such drawbacks, there have been proposed techniques for removing the paste and the coating material by using a chemical agent, but the cost of using the chemical agent is constantly increased and the burden is increased and the environment can be contaminated .

In order to solve such problems, there is a technique of crushing aggregates and peeling cement paste by a physical method.

Patent Document 1 (Registration No. 10-1217241) has conveying means for conveying an aggregate falling from a hopper installed at an upper end of a frame to a belt that rotates by a motor, and aggregate conveyed in front of the conveying means is conveyed to a tray An aggregate feeding part composed of a guide panel guiding inward; A pair of paste separating devices for separating the paste by striking the aggregate by a rotational force at the inner left and right sides of the inside of the trommel, a pair of separating devices for separating the paste from one side of the outer circumferential surface of the trommel, A main motor connected to a shaft sprocket of a motor provided at a side of the trommel to rotate the trommel; a first motor for raising the first end of the trommel to a high level and a second motor for lowering the rear of the trommel; And a paste separating unit composed of a supporting frame for supporting and rotating the circulating aggregate inside the trommel so that the paste contained in the aggregate is separated and the aggregate is reproduced. By the rotation of the trommel, First, paste is applied through friction with aggregate, It is possible to obtain a recycled aggregate having excellent quality in that the paste is secondarily caught through a blow with a rotating hammer and the paste is tertiaryly filtered through rotating paddles on the inner side of the hammer. However, There is a problem in that it is not possible to produce a recycled aggregate in which aggregates having various particle sizes are mixed at a certain ratio to be used for other purposes.

Patent Document 2 (Japanese Patent Application Laid-Open No. 10-2014-0075132) discloses a washing machine comprising a rotary drum installed to rotate around a rotary shaft by a driving device; A plurality of hammers arranged on the outer circumferential surface of the rotary drum at regular intervals along the longitudinal direction and the circumferential direction of the rotary drum to hit the waste concrete; A striking plate disposed to surround the outer side of the rotary drum and having a curved surface whose inner circumferential surface is spaced apart from the end of the hammer; And an elastic plate attached to the inner circumferential surface of the striking plate, wherein the elastic plate attached to the inner surface of the striking plate reduces the impact force when the hammer hits the waste concrete to crush the waste concrete, The cement paste adhering to the surface of the recycled aggregate can be smoothly peeled off due to the friction generated when the aggregate material is severely hit by giving a rotational force to the aggregate material. Since the crushing and the cement paste are peeled off only by hitting the hammer, There is a problem in that it is not possible to produce a recycled aggregate in which aggregates having various particle sizes are mixed at a certain ratio to be used for other purposes.

Patent Registration No. 10-1217241 Japanese Patent Application Laid-Open No. 10-2014-0075132

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of manufacturing a cement paste, which comprises dismantling waste or aggregate for reuse, peeling off cement paste, 9 to 10 mm, and 11 to 20 mm) in a predetermined ratio in order to obtain a recycled aggregate.

An apparatus for manufacturing a recycled aggregate material by crushing and peeling according to the present invention comprises: a case having an inlet and an outlet; Driving means provided outside the case; A crushing and peeling unit mounted inside the case and receiving power from the driving unit to crush waste to be introduced through the inlet of the case into a small particle size and peeling the surface paste; And a particle size adjusting unit installed at an upper portion of the discharge port of the case for adjusting the particle size of the recycled aggregate through a gap between the crushing and peeling unit. The case includes a case body and a liner mounted on an inner wall of the case body. , And the crushing and peeling machine comprises a rotating shaft which receives power through the driving means and rotates, a rotating shaft which rotates at a predetermined interval along the axial direction of the rotating shaft at a predetermined interval in the circumferential direction, directly or indirectly, A plurality of striking hammers disposed in a circumferential direction of the rotary shaft, the striking hammers being disposed between the striking hammers in a circumferential direction of the striking hammers, the striking members being crushed by the striking hammers together with the liner, And a roller-type hammer for crushing, A crushing device for crushing and separating the paste by separating the roller hammer and the recycled aggregate from the inner surface of the interval adjusting plate, And a control liner.

A method for manufacturing a recycled aggregate material by crushing and peeling according to the present invention includes a first step of injecting aggregate through an inlet of a recycled aggregate production apparatus by crushing and peeling; The crushing and peeling of the aggregate to be introduced through the first step is carried out by crushing and peeling off the aggregate material by the crushing and peeling machine of the crushing and peeling machine by the crushing and peeling, And a second step of crushing the aggregate with a small particle size and giving a crack to the paste, and peeling the paste by bimbeing the aggregate between the roller-type hammer and the liner .

According to the apparatus for manufacturing recycled aggregate material by crushing and peeling according to the present invention, the aggregate is crushed to a small particle size due to the collision against the liner due to striking and scattering by the impact hammer, and the cement paste on the aggregate surface is peeled And the paste is peeled off through the roller type hammer and liner and the shape is improved. Thus, by producing the recycled aggregate product in which the different kinds of recycled aggregate of various particle sizes are mixed at a certain ratio, it is possible to miniaturize the equipment, And it is also effective to provide the recycled aggregate with good quality, thereby making the circulation aggregate more active.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing the inside of a recycled aggregate production apparatus by crushing and peeling according to the present invention. FIG.
Fig. 2 is a front view of an apparatus for manufacturing a recycled aggregate by crushing and peeling according to the present invention. Fig.
3 is a front view of a crushing and peeling machine applied to a cyclic aggregate production apparatus by crushing and peeling according to the present invention.
4 is a side view of the crushing and peeling machine applied to the recycling aggregate manufacturing apparatus by wave crushing and peeling according to the present invention.

As shown in FIGS. 1 and 2, the apparatus for manufacturing a recycled aggregate material by crushing and peeling comprises a case 10, a driving means 20 installed on the ground via a frame, A crushing and peeling machine 30 for crushing aggregate material (referred to as waste, concrete, aggregate, and the like) that receives power from the crushing machine 20 and separating the cement paste (hereinafter referred to as "paste"), And a particle size adjusting unit (40) for producing aggregates having various particle sizes through adjustment of the interval between the particle size adjusting unit (30).

The case 10 includes a case body 11 having a space formed therein and having an inlet 12 at an upper portion thereof and a discharge port 13 at a bottom portion thereof and a liner 14 detachably mounted on an inner wall of the case body 11, .

The case body 11 can be partially opened (hinged etc.) or separated (fastened by fasteners) to facilitate the maintenance and repair of the crushing and peeling machine 30 constructed in the inside without disassembling the entire case body 11 And a lid which is detachably assembled.

The case body 11 may have various shapes such as a circular shape and a quadrangle shape, but it is preferable that the case body 11 is formed in a polygonal shape in order to increase the crushing and peeling efficiency.

The case body 11 is formed in accordance with the rotating direction of the crushing and peeling machine 30 and moves counterclockwise at the crushing port 12 when the reference crushing and peeling machine 30 rotates counterclockwise, Shaped edge portion 15 is formed and the convex edge portion 16 is formed vertically or inclined downwardly from the concave edge portion 15 and a plurality of concave and convex edge portions are repeated in this manner.

The inlet port 12 may be formed as an upper portion of the case body 11 and may be offset in the clockwise direction from the center when the aggregate is broken and separated in the direction of FIG.

The discharge port 13 is in the form of a hole that opens toward the bottom of the case body 11 and the opening degree is adjusted by the interval adjusting plate of the particle size adjusting means 40.

The inlet (12) and the outlet (13) are each configurable with a chute.

The liner 14 is made by crushing and / or peeling off the aggregate to be fed into the case body 11 together with the crushing and peeling machine 30, and is made of high manganese as the material of high strength and the aggregate is crushed and peeled A plurality of protrusions are formed on the crushing and peeling machine 30 so as to form grooves.

The liner 14 is detachably assembled to the inner wall of the case body 11 through fasteners (bolts, nuts, etc.) so that maintenance can be performed by selecting and replacing only the parts to be replaced.

The drive means 20 is driven by a drive motor 21 mounted on the frame, a drive pulley 22 axially coupled to the drive motor 21 and coupled to the rotation shaft 31 of the crushing and peeling machine 30, And a driven pulley 24 connected to the pulley 22 and a power transmitting member such as a belt 23 to rotate the rotating shaft 31 of the pulverizer and peeler 30 by the rotational force of the driving motor 21. [

1 to 4, the crushing and peeling machine 30 is installed inside the case body 11 and is configured to crush the waste introduced through the inlet 12 of the case body 11 into a small particle size, The paste is peeled off.

The crushing and peeling machine 30 is provided with a rotating shaft 31 which is rotatably coupled to the driven pulley 24 and a rotating drum 31 which is installed on the periphery of the rotating shaft 31 directly or through a drum 32 having a diameter larger than that of the rotating shaft 31 A plurality of impact hammers 33 and a roller type hammer 34 mounted on the drum 32 and installed through the drum 32 are preferable for manufacturing and maintenance. This is because the rotary shaft 31 uses a ready-made article and the hammer 33 is attached to the rotary shaft 31 through a separate drum 32, rather than forming the structure for installing the impact hammer 33 and the roller- It is inexpensive and easy to form a structure for installing the roller type hammer 34. [

The rotary shafts 31 are arranged in a direction transverse to the case body 11 so that both sides of the rotary shafts 31 are protruded to the outside of the case body 11 so as to be rotatable through a bearing or the like, .

The drum 32 has an inner hollow cylindrical shape and is fixed to the periphery of the rotary shaft 31 via a plurality of connecting rods 32a and rotates together with the rotary shaft 31. [

The drum 32 has a structure for installing the impact hammer 33 and the roller type hammer 34 and includes a first support base 32b for installing the impact hammer 33, And a second support table 32c is provided.

A pair of first support rods 32b are arranged and applied to both sides of the hitting hammer 33 and the second support rods 32c are arranged at regular intervals to form a roller type hammer 33 between two neighboring second support rods 32c. (34).

The striking hammer 33 is extended from the hammer portion 33c of the circular rod to the hammer portion 33c with a smaller cross sectional area than the hammer portion 33c and is interposed between the first support portions 33b, And a rod or a rectangular connecting portion 33b. The rotation guide bar 35 is fixed at one or more sides with a nut while passing through the side walls 32d standing on both side ends of the plurality of hitting hammers 33, the first support base 32b and the drum 32.

By applying a plurality of hitting hammers 33 as described above, only the parts requiring replacement are selected and replaced, thereby enabling maintenance at low cost.

A body 34a which is interposed between the second supports 32c of the roller type hammer 34 and through the rotation guide bar 36 and a plurality of heads 34b projecting radially from the periphery of the body 34a, ).

The head 34b can be used for a long time by configuring the plurality of heads 34b. When the roller type hammer 34 is fixed without rotating, the worn head 34b can be used while being rotated.

As shown in the drawing, the roller type hammer 34 can be maintained at a low cost by selecting only the parts that need to be replaced, and in the case of a fixed type without rotating, a plurality of the roller type hammer 34 can be installed with a phase difference along the axial direction The aggregate moves along the head 34b having a phase difference, and receives a physical impact a plurality of times to increase the efficiency of crushing, removing the paste, and polishing efficiency.

The impact hammer 33 and the roller type hammer 34 are alternately shifted along the circumferential direction with reference to FIG. 1 so that the primary impact by the impact hammer 33, the impact by the roller type hammer 34, .

Each of the impact hammer 33 and the roller type hammer 34 is rotatably provided through the rotation guide rods 35 and 36 so that the aggregate can be crushed or rubbed with a large force and can be removed and polished When the aggregate is crushed in this manner, it is possible to prevent breakage due to the impact or to fix the rotation guide rods 35 and 36 as a fixed rod without rotating.

The impact hammer 33 and the roller type hammer 34 are high strength materials which are not damaged by physical impact with the aggregate and are made of, for example, high manganese.

The particle size regulating means 40 is provided on the discharge port 13 of the case 10 and adjusts the particle size of the finally produced recycled aggregate by adjusting the distance between the crusher and the separator 30, And a roller type hammer 34 and / or a breaking hammer 33 (not shown), which are detachably mounted on the inner surface of the gap adjusting plate 41, And a particle size adjusting liner 42 for crushing and bombarding the recycled aggregate material and peeling off the paste.

The size control liner 42 is also formed in a concavo-convex shape like the liner 14 of the case 10 described above and is assembled and detachably attached to the interval adjusting plate 41 through a fastener.

As the distance between the particle size adjusting liner 42 and the roller type hammer 34 varies according to the angle change of the particle size adjusting liner 42, the circulating aggregates having various particle sizes are obtained by these 34 and 42.

The gap adjusting and driving means is connected to a power transmission member such as an angle adjusting motor 43, an angle adjusting motor 43 and a belt 44 to rotate in one direction or both directions and is connected to the gap adjusting plate 41, 42 and an eccentric shaft 45 for adjusting the distance between the roller type hammer 34 and the roller type hammer 34.

In addition, a supporting means may be applied for restoring force of the angle regulating plate 41 and the particle size adjusting liner 42.

The supporting means includes a support rod 46 which is installed around the angle adjusting plate 41 in a forward and backward direction along the angle adjusting direction of the angle adjusting plate 41 through a guide means and one side of which is rotatably connected to the angle adjusting plate 41, And a coil spring 47 as an elastic member for elastically supporting the support rod 46 in one direction.

The angle adjusting motor 43 can be driven temporarily by the operation of the manager or continuously driven during the production of the recycled aggregate, and is controlled to match the distribution of the particle size of the recycled aggregate.

On the other side of the particle size regulating means 40, the physical impact is applied to the recycled aggregate which is subjected to physical impact by the particle size regulating means 40 and the roller type hammer 34, The discharge side liner 17 is applied to remove the paste. The discharge side liner 17 is installed on the inner wall of the case body 11 so as to be inclined at a predetermined angle in accordance with the scattering direction of the circulating aggregate passing through the particle size regulating means 40.

In order to produce the recycled aggregate having a predetermined particle size range, it is effective to supply only the aggregate having a predetermined particle size. In order to accomplish this, a screen, which is a particle size separator for supplying the aggregate having a predetermined particle size to the inlet 12, It is preferable to be used together. The screen refers to any device capable of sorting the particles and it is also desirable that the screen is capable of dispersing and feeding aggregates.

The present invention can be applied to the discharge port 14 when a recycled aggregate having a specific particle size is required among the finally produced recycled aggregate particles.

A method for manufacturing a recycled aggregate using the apparatus for manufacturing a recycled aggregate by crushing and peeling according to the present invention is as follows.

1. Input of aggregate.

The aggregate is introduced into the case 10 through the inlet 12. At this time, it is preferable that only the aggregate of a predetermined particle size is injected into the case 10 through the screen.

2. Shredding and peeling.

When power is applied to the drive motor 21 of the drive means 20 through the operation of the switch, the drive motor 21 generates a rotational force which is transmitted to the drive pulley 22 - the belt 23 - the driven pulley 24 And the rotating shaft 31 of the crushing and peeling machine 30 is rotated.

The rotary hammer 33 and the roller hammer 34 also rotate in the same direction while the rotary shaft 31 and the drum 32 are rotated counterclockwise in FIG.

The impact hammer 33 hits an aggregate material falling freely through the inlet port 12 while rotating, and cracks are generated such that the aggregate material is crushed by the physical impact caused by the impact and the surface paste is peeled off or peeled off.

The aggregate struck by the striking hammer 33 is scattered toward the liner 14 and collides with the liner 14, and secondary collision and paste are peeled off by the collision energy at this time. In this process, the paste having cracks is peeled without peeling due to the impact hammer 33 being hit.

The roller type hammer 34 which rotates in front of the hammer 33 rubs against the aggregate on both sides of the aggregate together with the liner 14. In this process, the aggregate is crushed to a small particle size and the paste is peeled off. In addition, the roller-type hammer 34 behind the impact hammer 33 may be hit by the impact hammer 33, scattered on the liner 14, and then hit the aggregate that is repelled to peel off the paste. In other words, since the plurality of impact hammers 33 and the plurality of roller-type hammers 34 rotate at even intervals, all the aggregates can be hit and polished several times.

Particularly, in the convex edge portion 16, the aggregate falling after colliding with the concave edge portion 15 is bumped together with the roller type hammer 34, so that the peeling effect of the paste is high and the effect of edge improvement (roundness without angled portion) high.

Subsequently, the aggregate falls to the discharge port 13, collides with the impact hammer 33, collides with the liner 14, is crushed again, passes through the particle size regulating means 40 after the paste is peeled off.

The aggregate is polished between the grain size control liner 42 and the roller type hammer 34 of the grain size regulating means 40 so that the paste is peeled and crushed to a small grain size.

When the eccentric shaft 45 of the size adjustment liner 42 is controlled to rotate, the size adjustment liner 42 advances or reverses toward the roller type hammer 34 and thus the size adjustment liner 42 and the roller type When the distance between the hammers 34 is large, aggregates having a large particle size are discharged. When the intervals are small, aggregates having a small particle size are discharged.

Therefore, according to the present invention, when recycled aggregates having various particle sizes are produced and, for example, the aggregate having a particle size of 20 mm is used as a starting material, the recycled aggregate having a particle size of 8 mm or less and the recycled aggregate having a particle size of 9 to 10 mm %, Recycled aggregate products having a particle size of 11 to 20 mm and a recycled aggregate content of 40 to 55%. The above values are merely an example and can be produced in various mixing ratios.

When the discharge side liner 17 is applied, the aggregate passing through the particle size control liner 42 is scattered by the discharge side liner 17, collides with the discharge side liner 17, and impact energy is applied to the surface of the circulated aggregate The remaining paste is peeled off.

10: case, 11: case body
12: inlet, 13: outlet
14: liner, 20: driving means
30: crushing and peeling machine, 31: rotating shaft
32: drum, 33: blow hammer
34: roller type hammer, 40: particle size adjusting means
41: angle regulating plate, 42: particle size adjusting liner
43: Angle adjusting motor, 44: Belt
45: Eccentric shaft,

Claims (6)

A case 10 having an inlet 12 and an outlet 13 and having at least one edge portion;
A driving means (20) provided outside the case;
A crushing and stripping machine 30 installed inside the case and receiving power from the driving means to crush waste to be introduced through the inlet of the case into a small particle size and peeling the surface paste;
And a particle size regulating means (40) installed at an upper portion of the outlet of the case to adjust the particle size of the recycled aggregate through adjustment of the interval between the crusher and the peeler. The recycled aggregate having a size of 8 mm, the recycled aggregate having a size of 9 to 10 mm, A circulating aggregate having a particle size of 20 mm is mixed at a certain ratio,
The case includes a case body 11, a concave-convex liner 14 mounted on the inner wall of the case body and having a plurality of projections and grooves facing the crushing and peeling machine, A concave edge portion (15) and a convex edge portion (16)
The crushing and peeling machine includes a rotating shaft 31 rotating by receiving power through the driving means, a drum 32 coupled to the periphery of the rotating shaft, A plurality of bar striking hammers 33 and a plurality of radially protruding heads 34b disposed at regular intervals from one another along the axial direction of the rotary shaft through rotary guide rods 35, (36) disposed along the circumferential direction of the rotary shaft along the circumferential direction of the rotary shaft, the rotary hammer being disposed on the drum through a rotation guide rod (36) and being crushed by the hammer together with the liner and peeling the paste from the surface of the weakened aggregate And a roller type hammer 34 for crushing the drum hammers 34. The drum 32 is disposed on both sides of the hammer 33 to fix the hammer to the drum 33 at regular intervals And a second support base (32c) spaced apart from the first support base (32b) of the pair by a predetermined distance to allow the roller type hammer (34)
The size adjusting means includes an interval adjusting plate 41 whose one side is rotatably connected to the case and whose angle is adjusted by the interval adjusting driving means, the separating plate 41 detachably mounted on the inner side of the interval adjusting plate, And a particle size adjusting liner (42) for crushing and bombarding the recycled aggregate to peel off and paste,
The gap adjusting driving means may include an eccentric shaft 45 connected to the gap adjusting plate, a driving source for adjusting the gap between the gap adjusting plate and the crushing and peeling machine by rotating the eccentric shaft in one direction or both directions, The apparatus for producing recycled aggregate by wave crushing and peeling. delete delete The apparatus for manufacturing recycled aggregate according to claim 1, wherein the roller-type hammer is mounted on the rotary guide rods so that the heads face each other with a phase difference. delete A method of manufacturing a recycled aggregate material using a recycled aggregate material production apparatus by crushing and peeling according to claim 1,
A first step of injecting the aggregate through the inlet of the recycled aggregate producing device by crushing and peeling;
The crushing and peeling of the aggregate to be introduced through the first step is carried out by crushing and peeling off the aggregate material by the crushing and peeling machine of the crushing and peeling machine by the crushing and peeling, And a second step of crushing the aggregate with the small-sized particle and cracking the paste, and peeling off the aggregate between the roller-type hammer and the liner by the bimbe, A method for manufacturing a recycled aggregate by pulverization and exfoliation, characterized by producing a recycled aggregate in which aggregate, recycled aggregate having a particle size of 9 to 10 mm and recycled aggregate having a particle size of 11 to 20 mm are mixed at a certain ratio.

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