KR100712077B1 - System for manufacturing of recycling aggregate that use rotary crusher for waste concrete crush - Google Patents

Abstract

The present invention relates to a system for producing recycled aggregate by crushing waste concrete in construction waste, wherein a crushing projection provided on a lining supported by a tension of a spring is engaged with a crushing projection provided on a rotary shaft to crush and remove the clay of the mortar, The present invention relates to a recycled aggregate production system using a rotary crusher for crushing waste concrete, which can produce high quality recycled aggregate materials from waste concrete using a rotary crusher for peeling mortar attached to the waste concrete.

In the present invention, waste concrete is crushed and sorted several times to produce recycled aggregate of desired particles, and then the mortar attached to the surface of the recycled aggregate is peeled off, thereby improving the grain size and improving the quality of the aggregate Wherein a lining is provided on both sides of the inside of the body so that the lower side of the lining can receive the tension of the spring while the crushing protrusion is disposed in front of the lining, The crushing of the mortar and the mortar attached to the surface of the recycled aggregate are peeled off without damaging the shape of the recycled aggregate originally by using the rotary crusher provided with the crushing protrusions engaging with the crushing protrusions of the lining , A mortar-free high-quality So as to obtain aggregates.

Waste concrete, recycled aggregate, lining, crushing projection

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary crusher for waste concrete,

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-

2 is a plan view showing the installation state of the rotary shaft of the present invention

3 is a cross-sectional view showing the lining of the present invention and the installation state of the rotating shaft

4 is a cross-sectional view of an embodiment showing a lining and a rotary shaft installed state of the present invention

5 is a cross-sectional view of another embodiment lining of the present invention

6 is a plan view showing a state in which the rotating shaft of the present invention and the lining crushing projections are engaged;

Figure 7 is a cross-

8 is a system configuration diagram of the present invention

9 is a cross-sectional view showing a state in which the rotary shaft of the present invention is lifted

DESCRIPTION OF THE REFERENCE NUMERALS

10: Frame 20: Body

25: side plate 26: front plate

27: back plate 30: lining

31: hinge 32: tension bar

33: spring 35: crushing projection

40: rotating shaft 45: crushing projection

50: laminated plate 100: rotary crusher

200: vibration feeder 300, 310: jaw crusher

320: Cone crusher 400, 410: Magnet sorting machine

500, 600, 700: vibration screen

The present invention relates to a system for producing recycled aggregate by crushing waste concrete in construction waste, wherein a crushing projection provided on a lining supported by a tension of a spring is engaged with a crushing projection provided on a rotary shaft to crush and remove the clay of the mortar, The present invention relates to a recycled aggregate production system using a rotary crusher for crushing waste concrete, which can produce high quality recycled aggregate materials from waste concrete using a rotary crusher for peeling mortar attached to the waste concrete.

In terms of environmentally friendly and recyclable resources, construction waste generated when dismantling construction and building structures is collected in a predetermined place without being landfilled, and then produced as high quality resources through intermediate treatment process. Especially, waste concrete of construction waste The recycled aggregate obtained by crushing and screening has been greatly utilized due to the dismantling of large amounts of structures due to the revitalization of urban and rural buildings.

In the intermediate treatment process of the construction waste, the collected construction waste is firstly crushed by a crusher, the scrap iron is separated and discharged by an electromagnet separator, and then the earth and foreign matter are separated and discharged by blowing and rotating, After the waste woods and various kinds of waste are separated and discharged by the screen, other foreign substances are removed by high-pressure water spraying. Then, the waste is broken down by the second and optionally third crushing machine, Recycled aggregates of various sizes are obtained by the sorting machine.

However, even the recycled aggregate obtained through such a process may not have good appearance due to mortar such as cement mortar and foreign matter adhering to the surface of the aggregate as compared with the natural aggregate, so that the aggregate surface and the mortar And the strength of the recycled aggregate is lowered because of high absorption rate. Therefore, the recycled aggregate is not utilized as the first aggregate.

In order to solve this problem, various devices for removing the mortar attached to the surface of the recycled aggregate have been proposed. However, in the conventional surface stripping apparatus, the mortar attached to the surface of the aggregate can be peeled off, In the facility for producing the recycled aggregate, the crushing device for producing the recycled aggregate is formed separately in the waste concrete, and the separating device for separating the surface of the recycled aggregate must be additionally provided. Therefore, the installation cost is increased, In the peeling apparatus, there was a problem in that it can not be treated when the aggregate size is large.

Particularly, when the cement mortar which is crushed to the same size as the recycled aggregate is discharged like the recycled aggregate, the quality of the aggregate is greatly lowered by the mortar lump.

However, in order to remove the mortar lumps, it is necessary to crush them. However, when using the conventional crusher, the mortar lumps are crushed and the recycled aggregate is crushed too much or the original aggregate form is broken and frosted. Therefore, the recycled aggregate is not damaged, and it is necessary to crush and remove only the lumps of mortar, and it is necessary to peel off the mortar attached to the surface of the aggregate.

The present invention relates to a method for producing a recycled aggregate by crushing and sorting construction waste, wherein the mortar supplied together with the recycled aggregate is crushed and discharged, and the mortar attached to the surface of the recycled aggregate is peeled off and discharged. So as to improve the grain size of the recycled aggregate and to provide high quality aggregate and sand.

In the present invention, waste concrete is crushed and sorted several times to produce recycled aggregate of desired particles, and then the mortar attached to the surface of the recycled aggregate is peeled off, thereby improving the grain size and improving the quality of the aggregate Wherein a lining is provided on both sides of the inside of the body so that the lower side of the lining can receive the tension of the spring while the crushing protrusion is disposed in front of the lining, The crushing of the mortar and the mortar attached to the surface of the cyclic aggregate are peeled off without damaging the shape of the circulating aggregate by using the rotary crusher provided with the crushing protrusions engaging with the crushing protrusions of the lining, , Good quality mortar removed without damaging the recycled aggregate To help you get the aggregate.

The present invention relates to a method for producing recycled aggregate by crushing waste concrete, which is a construction waste, by crushing a mortar mass to be supplied together with the recycled aggregate, separating the mortar adhering to the surface of the recycled aggregate but not damaging the recycled aggregate, So as to improve the quality of the recycled aggregate.

In the rotary crusher for crushing a mortar chunk charged with a recycled aggregate and peeling a mortar attached to the surface of an aggregate, a lining having crushing protrusions at the front is installed on both sides of the inside of the body, and the lining is hinged rearward, The lower tension bar is urged by a spring and a rotating shaft is rotated by rotating the tension bar at a predetermined distance from the lining so that the rotating shaft is provided with a crushing protrusion engaging with the crushing protrusion of the lining to allow the circulating aggregate to pass between the lining and the rotating shaft The recycled aggregate passes through the lining and the mortar is peeled off, and the mortar lump is so low that it can not push the lining, it is crushed and discharged.

The present invention relates to a method for pulverizing waste concrete in which primary pulverization of waste concrete is carried out on a rotary crusher in which pulverization and surface peeling of aggregate are carried out at the same time without damaging the circular aggregate of the aggregate and damaging the mortar, Can also produce high quality recycled aggregate which is also removed.

The present invention is a system for producing recycled aggregate for recycling waste concrete as a construction waste by crushing and sorting waste concrete. The waste concrete charged into the hopper 210 is crushed in the jaw crusher 300 through the vibration feeder 200 And the soil aggregate removed from the vibration screen 500 is crushed by the jaw crusher 310 and then separated into three kinds of aggregates by size such as sand and gravel in the vibration screen 600, The large aggregate that has not been separated from the vibration screen 600 is crushed in the cone crusher 320 and then selected again and the recycled aggregate used as the selected sand in the vibrating screen 600 is crushed by the mortar in the rotary crusher 100 And the mortar attached to the aggregate is peeled and then the aggregate is selected in the vibration screen 700. [

The aggregate crushed in the jaw crusher 300 (310) passes through the magnetic separators (400) and (410) to remove metal impurities.

The vibration feeder 200 of the present invention smoothly feeds the aggregate introduced into the hopper 210 into the jaw crusher 300. The magnetic separators 400 and 410 bring the magnet close to the surface of the aggregate, The vibrating screens 500, 600, and 700 may include two or more screens having different mesh sizes to provide a plurality of screens. The jaw crushers 300, And the cone crusher 320 are devices for crushing aggregates. Conveyor belts or the like for moving aggregates between the devices of the present invention are generally used in general circulating aggregate production facilities.

The belt conveyor is used to convey the aggregate material through the belt conveyor, and the vibration feeder 200, the magnetic separator 400 (410), the vibration screen 500 Facilities for producing recycled aggregate from waste concrete using generalized devices such as 600, 700, joggers 300 and 310 and cone crusher 320 are well known in the art.

In the present invention, the rotary crusher 100, which peels off the mortar adhered to the surface of the recycled aggregate selected from the vibration screen 600 and breaks up the mass of cement mortar supplied together with the recycled aggregate so as not to be included in the aggregate, do.

The body 20 of the rotary crusher 100 of the present invention is formed in a substantially rectangular shape and has a discharge port 21 through which recycled aggregate is charged and an outlet 22 through which aggregate is discharged, The lining 30 having the crushing protrusion 35 fixed to the side plate 25 of the body 20 is tensioned by the spring 33 so that the crushing protrusion 35 is fixed to the side plate 25 of the body 20. [ And is coupled with the hinge 31 so as to be rotatable in the applied state.

A rotary shaft 40 having a crushing protrusion 45 is formed on the front plate 26 and the rear plate 27 of the body 20 so as to be spaced apart from the lining 30 by a predetermined distance, 41 are coupled to each other so that the rotating power of the motor is transmitted to the chain so that the circulating aggregate passes between the crushing protrusions 35 of the lining 30 and the crushing protrusions 45 of the rotating shaft 40 to crush the mortar lumps, Allow the mortar to peel off the surface.

3, the upper portion of the rear surface of the lining 30 is coupled to the side plate 25 of the body 20 by a hinge 31, A spring 33 is extruded to the tension bar 32 so that the spring 33 pushes the lining 30 toward the inside of the body 20 And the compression spring 33 is pushed by the milling mouth 37 so as to be fitted in the receiving hole 36 fixed to the outside of the side plate 25 as shown in Fig. Tension is applied.

That is, the lining 30 is always urged inward by the spring 33 extrapolated to the tension bar 32, and in this state, a relatively high-strength aggregate is injected between the lining 30 and the rotary shaft 40 The lining 30 is pushed out, so that only the mortar attached to the surface is discharged. In the case where a cement mortar having a low strength is introduced, the lining 30 is not pushed, so that the mortar lumps are peeled off .

The crushing protrusion 35 is fixed to the lining 30 and the crushing protrusion 35 has a predetermined size as shown in FIG. 6 and is spaced apart from the crushing protrusion 35. A crushing protrusion 45 having a predetermined size is also installed on the rotating shaft 40 The crushing protrusions 45 of the rotary shaft 40 are installed on the crushing protrusions 35 of the lining 30 as shown in FIG.

1, it is preferable that the lining is separately formed at the upper end, the lower end, and the lower end of the inner sides of the body, respectively. This is because the lining is independently formed and separated, Can only be repaired or replaced.
The rotary crusher 100 according to the present invention allows the crushed aggregate to pass between the crushing protrusions 45 of the rotary shaft 40 and the crushing protrusions 35 of the lining 30, ) So that the aggregate is not crushed and the mortar is crushed and the mortar attached to the surface of the aggregate is removed, so that the crushed mortar can be removed without damaging the round shape of the aggregate as much as possible .

In the generalized recycled aggregate production facility for producing recycled aggregate by crushing waste concrete, the present invention uses the rotary crusher (100) to crush the cement mortar mass contained in the recycled aggregate and remove it from the aggregate At the same time, the mortar attached to the surface of the aggregate is peeled off, but the circular shape of the circulating aggregate is not significantly damaged, thereby improving the quality of the circulated aggregate.

As shown in the drawing, the aggregate of pulverized waste concrete is introduced into the hopper 210, passed through the vibration feeder 200, and then crushed in the jaw crusher 300. In the jaw crusher 300, The crushed aggregate is passed through the magnet separator 400 to remove metal impurities and then introduced into the vibrating screen 500 to perform primary sorting of soil or fine aggregate in the vibrating screen 500. The vibration screen 500 The aggregate selected in step S3 is crushed in the jaw crusher 310 and then discharged through the magnet sorting unit 410 to the vibrating screen 600. The vibrating screen 600 has a structure in which the mesh is installed in a multi- The aggregates of various sizes may be selected, but the aggregate that is not sorted may be crushed in the cone crusher 320 and then sorted again, and the aggregates selected in each size may be collected and utilized Particularly, the recycled aggregate, which is selected from the vibration screen 600 and can be used as sand, is introduced into the rotary crusher 100 to break the cement mortar and peel off the mortar attached to the aggregate to produce high quality aggregate.

At this time, the recycled aggregate to be supplied from the vibration screen 600 to the rotary crusher 100 contains the clay of mortar, and the mortar is adhered to the surface of the recycled aggregate. Thus, the clay of the clay is mixed with the aggregate, The mortar is deteriorated when the mortar is adhered to the mortar. In order to eliminate the mortar, the mortar is crushed again. However, the mortar is removed every time the aggregate is crushed, In order to prevent this, the aggregate is not damaged and the mortar is removed and the mortar attached to the surface of the aggregate should be peeled off.

The rotary crusher 100 for crushing the mortar and pulverizing the mortar attached to the surface of the aggregate causes the rotation shaft 40 provided inside the body 20 to rotate and then the injection port 21 The recycled aggregate and the clump of the mortar are separated from each other by the separating plate 50 provided at the lower part of the inlet 21 and the recycled aggregate of the body 20 And the recycled aggregate separated at the separating plate 50 is introduced between the lining 30 of the body 20 and the rotating shaft 40.

In this state, the circulating aggregate charged into the charging port 21 passes between the rotating shaft 40 and the lining 30 while the rotating shaft 40 is rotated. At this time, the mortar mass between the lining 30 and the rotating shaft 40 The mortar attached to the surface of the aggregate is peeled off.

That is, the recycled aggregate passes through between the lining 30 and the rotating shaft 40, and the pulverizing protrusions 45 fixed to the rotating shaft 40 are inserted between the pulverizing projections 35 fixed to the lining 30, The recycled aggregate is crushed and peeled off between the crushing protrusions 35 and 45. As a result, the aggregate having a relatively high strength is discharged without pushing the lining 30 without crushing, so that the mortar of the surface is peeled off, The weakened cement mortar is crushed and discharged without pushing the lining 30 and the drainage port 21 is provided with a sieve 60 to be discharged only under a certain size.

The lining 30 for separating the circulating aggregate is pushed backward by squeezing the spring 33 extrapolated to the tension bar 32 when the circulating aggregate is pushed by the crushing projection 45 of the rotary shaft 40, The mortar and the recycled aggregate are passed between the crushing protrusions 35 and 45 when they are sandwiched between the lining 30 and the rotating shaft 40 The mortar is crushed and the mortar attached to the surface of the aggregate is crushed and broken so that the aggregate passing between the lining 30 and the rotating shaft 40 is in a state of surface peeling. At this time, the tension applied to the lining 30 Is crushed by the mortar mass made of cement lumps only, but it is crushed by the recycled aggregate and is not affected by the particle damage of the aggregate.

The front plate 26 and the rear plate 27 of the body 20 can be coupled with the side plate 25 when the lining 30 is replaced or the crushing protrusion 35 is replaced in the rotary crusher 100 of the present invention, And the front plate 26 and the rear plate 27 are lifted up by using a winch or the like after the chain hanging on the rotary shaft 40 is removed and the rotary shaft 40 is rotated In this state, the lining 30 installed in the body 20 is replaced or repaired, or the crushing protrusion 35 is repaired or replaced. In this way, the lining 30, The rotary shaft 40 is moved downward to fix the front plate 26 and the rear plate 27 to the side plate 25 to complete the body 20.

The recycled aggregate discharged from the rotary crusher 100 of the present invention is discharged to the vibrating screen 700 and finally discharged as aggregate and fine powder. In this case, the aggregated aggregate does not contain a cement mortar mass, Is a high-quality aggregate with no mortar.

The present invention relates to a method for crushing a mortar mass and a surface peeling of a recycled aggregate by using a single rotary crusher without using a crusher and a surface peeling apparatus when making recycled aggregate from waste concrete, The mortar can be removed by grinding without damaging the recycled aggregate while the mortar attached to the surface of the recycled aggregate can be peeled off to produce high quality recycled aggregate.

Claims (2)

The recycled agglomerated material which has been introduced into the jaw crusher 300 from the vibration feeder 100 is passed through the magnetic separator 400 and then sorted in the vibration screen 500. The recovered aggregate is then introduced into the jaw crusher 310, The recycled aggregate production system according to the present invention is characterized in that the recycled aggregate production system comprises a vibrating screen (600) for sorting the aggregates through the magnetic separator (410), but not sorted, through the cone crusher (320) The crushing protrusions 35 of the lining 30 and the crushing protrusions 45 of the rotating shaft 40 are engaged and rotated in the vibration screen 600 while the lining 30 receives the tension of the spring 33, The recycled aggregate that has passed through between the lining 30 of the rotary crusher 100 and the rotating shaft 40 and the mortar has been removed is sorted by size in the vibration screen 700, However, The rotary crusher (100) has a body (20) formed with an inlet (21) through which recycled aggregate is injected into an upper portion and an outlet (22) through which recycled aggregate is discharged downward; A lining 30 is installed on both sides of the inside of the body 20 so that the rear upper portion of the lining 30 is coupled to the side plate 25 of the body 20 by the hinge 31, And a spring 33 is extruded on the tension bar 32 while a crushing protrusion 35 protruding inward is fixed to the front surface of the lining 30; A rotary shaft (40) rotated at a predetermined interval is installed on the front surface of the lining (30), and a crushing projection (45) is fixed to the outer side of the rotary shaft (40). (50) for injecting recycled aggregate between the lining (30) of the body (20) and the rotary shaft (40) is installed at the lower part of the charging port (21); The crushing protrusions 45 of the rotating shaft 40 are engaged and rotated between the crushing protrusions 35 of the lining 30 to crush and remove the recycled aggregate material to be discharged to the discharge port 22, Wherein the lining is separately formed at upper, lower, and lower ends of the inner side of the body, respectively. delete

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