KR101797591B1 - Cleaning Apparatus and Cleaning Method of Recycling Fine Aggregate - Google Patents

Abstract

The present invention relates to a cleaning device and a cleaning method for cleaning foreign matter contained in fine aggregate and reclaimed fine aggregate by using washing water. More particularly, the present invention relates to a cleaning device and a cleaning method for floating foreign matter on a water surface of washing water, And a centrifugal separator constituted by a rising vortex generating part generating a centrifugal force through a vortex and a specific gravity separating part selecting foreign matters gathered inside the vortex due to the centrifugal force so that various kinds of foreign materials The present invention relates to a regenerated fine aggregate cleaning device and a cleaning method which can effectively select and minimize the amount of washing water used.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fine aggregate cleaning apparatus,

The present invention relates to a cleaning device and a cleaning method for cleaning foreign matter contained in the fine aggregate and using the cleaning water to clean the fine aggregate. More particularly, the present invention includes a centrifugal separator for sorting foreign matters in the fine aggregate And to a method and apparatus for cleaning fine aggregate which can effectively sort various kinds of foreign materials contained in fine aggregate and minimize the amount of washing water used.

Aggregate is sand or gravel used as a base material in construction work. Aggregates are classified into coarse aggregate (coarse aggregate, gravel) having a particle size of 5 mm or more and fine aggregate (fine aggregate, sand) having a particle size of less than 5 mm.

In the past, such aggregates were generally used in nature, but the use of recycled aggregates produced by recycling aggregates from construction waste is increasing due to depletion of natural resources and increase in construction waste.

During the regeneration of the aggregate, the recycled aggregate must be sorted and cleaned. Construction waste includes various types of foreign materials such as soil, vinyl, wood, fabric, glass, metal, and styrofoam. These foreign materials deteriorate the quality of aggregate. Unlike natural aggregate, recycled aggregate contains calcium oxide (CaO) component of mortar, which causes alkaline contact with water during recycling, thereby causing environmental pollution problems.

In regeneration of coarse aggregate, the particle size of foreign matter and coarse aggregate are different, and most of the foreign matter is sorted if aggregate is classified according to particle size. After this sorting process, it is possible to clean the components of the mortar contained in the aggregate through a simple washing process. However, in the fine aggregate, there is not much difference between the particle sizes of the foreign matter and the aggregate, so there is a great difficulty in selecting the foreign matter.

Also, in washing the fine aggregate, the aggregate is washed through the process of spraying washing water on the aggregate or immersing the aggregate in the washing water. In this method, a large amount of washing water is required and the size of the washing apparatus is inevitably increased . Further, wastewater and sludge are generated from a large amount of washing water used for washing the aggregate, thereby causing environmental problems.

Conventionally, Korean Patent Registration No. 10-0959586 has been disclosed in order to solve such a problem. Korean Patent No. 10-0959586 regenerates sand through a first cyclone chamber suspending foreign matter and a second cyclone chamber separating foreign matters and fine particles by rotating centrifugal force by rotating wash water. A rotary vane wall for generating a vortex is formed in an inner peripheral portion of the first cyclone chamber and the second cyclone chamber. Korean Patent No. 10-0959586, however, can effectively sort foreign matters capable of floating such as styrofoam, but it is not effective for sorting foreign matters that are not floated because the foreign matter outlet is uniformly formed, and aggregate and washing water are uniformly distributed Although stirring is very important for cleaning and normalization, no consideration is given to uniform and smooth introduction of aggregate. Further, there is a problem that a large amount of wastewater is generated because the washing water is used in an amount similar to that of the conventional washing apparatus.

(Document 1) Korean Patent No. 10-0959586

It is an object of the present invention to provide a regenerated fine aggregate cleaning device and a cleaning method which can effectively sort various kinds of foreign materials contained in the fine regenerated aggregate.

SUMMARY OF THE INVENTION An object of the present invention is to provide a reclaimed fine aggregate cleaning apparatus which is small in size and small in size and easy to use and maintain.

It is an object of the present invention to provide a regenerated fine aggregate cleaning device and a cleaning method that can minimize the amount of washing water used to reduce the generation of wastewater and sludge.

The apparatus for cleaning fine aggregate according to an embodiment of the present invention is a device for cleaning foreign matter contained in fine fine particles and washing fine fine particles using washing water, And a supply line for uniformly distributing the regenerated fine aggregate to the regeneration fine aggregate inlet of the washer, and a feed line for feeding the regenerated fine aggregate to the regeneration fine aggregate feed inlet, A float selector for allowing the floating water to be floated on the water surface of the washing water to be selected by the flocculant, and a rising vortex generating vortex that allows the foreign matter contained in the regenerated fine aggregate stirred with the washing water to be sorted by the specific gravity difference between the regenerated fine aggregates And the regenerated fine aggregate and foreign matter in the turbulent flow generated by the rising vortex generating portion have different specific gravity, A centrifugal separator including a centrifugal separator, a centrifugal separator for separating foreign matter collected inside the centrifugal separator, and a centrifugal separator for separating the foreign substances from the centrifugal separator, A sand dehydrator provided with a sand dewatering screen for removing washing water from the fine regenerated fine aggregate selected by the separator, and a sedimentation tank for precipitating the fine powder contained in the washed water after the washing is completed.

The sedimentation tank of the apparatus for cleaning fine aggregate according to the present invention comprises a sedimentation tank for precipitating fine particles contained in washing water removed from foreign matter and fine aggregate through a dehydrator and a sand dehydrator, And a storage tank for storing subsequent washing water.

Also, the aggregate feeder of the apparatus for cleaning fine aggregate material according to the embodiment of the present invention includes: an aggregate feeder frame including an aggregate feeder, an aggregate feeder frame for forming an outer surface of the aggregate feeder, And a supply line having a shape cut in an oblique direction with respect to the entire other end surface of the vibration supply plate, characterized by comprising: a vibration supply plate provided with fine aggregate of fine particles and gradually narrowed in width from one end to the other end; .

The centrifugal separator of the apparatus for cleaning fine aggregate according to the embodiment of the present invention comprises a cylindrical agitating main body and a pipe connected to the side of the agitating main body in a direction perpendicular to the center of the agitating main body, A first washing water inlet for spraying the washing water when the washing water is rotated along the inner circumferential surface of the agitating main body when the washing water is injected into the agitating main body and the regenerating fine aggregate charged at the top and the washing water injected at the side collide with the structure And one end connected to a central portion of the agitating main body and a side portion disposed at an upper side of the agitating main body, and the other end connected to a centrifugal separator, wherein the regeneration aggregate and the washing water are stirred, And a washing water recovery unit for recovering the fine aggregate and the washing water, And a stirring device for stirring the mixture.

The centrifugal separator of the apparatus for cleaning fresh fine aggregate according to the embodiment of the present invention comprises a cylindrical centrifugal main body and a pipe connected to the upper part of the side of the centrifugal separation body, And a pipe connected to the lower portion of the side of the centrifugal separation body at a right angle to the center point of the centrifugal separation body, wherein the centrifugal separation body is connected to the centrifugal separation body in a direction perpendicular to the center of the centrifugal separation body, A second washing water inlet for injecting washing water into the centrifugal body through the pipe when the washing water is rotated along the inner circumferential surface of the centrifugal body, and a horizontal rib structure formed along the inner circumferential surface of the centrifugal body A rising vortex generating part for forming a rising vortex when the washing water is inputted from the second washing water inlet, And a specific gravity difference discriminating portion for sucking foreign substances collected inside the pipe and discharging the foreign substance to the dehydrating dehydrator when the foreign substance is collected inside the vortex due to the difference in specific gravity in the eddy current generated by the rising vortex generating portion .

In the centrifugal separator according to the embodiment of the present invention, a cylindrical partition wall is formed below the opening of the pipe of the specific gravity separator connected to the center of the centrifugal separator, Thereby increasing the rotational force of the formed vortex.

The centrifugal separation apparatus for regenerating fine aggregate according to an embodiment of the present invention comprises a cylindrical centrifugal main body and a centrifugal separation main body, A floating separator which is connected to the upper portion of the side portion and discharges the foreign matter to the foreign material dehydrator when the foreign matter contained in the fine regenerated aggregate stirred with the washing water floats on the water surface of the washing water due to the difference in specific gravity between the washing water and the washing water, A washing water inlet for spraying the washing water along the inner circumferential surface of the centrifugal main body when the washing water is introduced into the centrifugal main body through the pipe and connected to the lower part of the side of the main body in a direction perpendicular to the center point of the centrifugal main body, A horizontal rib structure formed spirally along the inner peripheral surface of the centrifugal separation body, A rising vortex generating part that forms a rising vortex when the washing water is input; and a pipe connected to a center part of the centrifugal separation body, wherein when the foreign matter is collected inside the vortex due to the difference in specific gravity in the vortex generated by the rising vortex generating part, And a specific gravity difference discriminating portion for sucking the collected foreign substances into the foreign substance removing device.

In the centrifugal separator of the reclaimed fine aggregate centrifugal cleaner according to the present invention, a cylindrical partition wall is formed below the opening of the pipe connected to the center of the centrifugal separator body, Thereby increasing the rotational force of the motor.

The fine aggregate cleaning method according to an embodiment of the present invention includes a vibration supply plate for uniformly distributing unevenly distributed fine aggregate by applying vibration to the fine aggregate, and a supply line for supplying the fine aggregate with a uniform distribution. And a pipe connected to the side of the agitating main body at a right angle to the center point of the agitating main body. When the washing water is poured into the agitating main body through the pipe, when the washing water is rotated along the inner peripheral surface of the agitating main body, And a stirring member disposed on the upper side of the agitating main body, the agitating frame including a first agitating member and a second agitating member for agitating the agitating member, And the other end is connected to the centrifugal separator, and the regenerated fine aggregate and the washing water And a washing water recovering unit for recovering the washing water overflowing in the stirring process, wherein the stirring apparatus includes a stirring device that smoothly stirs the regenerated fine aggregate and the washing water with only the water pressure for inputting the washing water, A float selector for floating the water on the surface of the washing water by the difference in specific gravity between the washing water and the washing water, and a vortex for allowing the foreign matter contained in the washing water and the regenerated fine aggregate to be sorted by the difference in specific gravity between the regenerated fine aggregates A centrifugal separator for separating foreign materials collected inside and outside the vortex due to the difference in specific gravity between the regenerated fine aggregates and the foreign matter in the vortex generated by the rising vortex generating portion; A dehydrating screen for removing debris from the foreign matter selected by the centrifugal separating apparatus; A sand dehydrator having a sand dewatering screen for removing washing water from the reclaimed fine aggregate selected by the centrifugal separator, and a sedimentation tank for precipitating the fine powder contained in the washed water having been cleaned A supply step of supplying the fine aggregate to the regenerated fine aggregate cleaner through an aggregate feeder to uniformly distribute the regenerated fine aggregate to the regenerated fine aggregate cleaner through a stirring device; A centrifugal separating step of separating the foreign matter collected inside the vortex due to the foreign matter floating on the water surface of the washing water and the difference in specific gravity through the centrifugal separating device and removing the washing water from the foreign matter selected during the centrifugal separating process Through the dehydration process of foreign matter and the sand dehydrator, Sand dehydration going; it characterized in that it comprises,; and, via a settling tank, settling process to precipitate the fine powder contained in the wash water to remove foreign matter from the dehydration process and the dewatering process, sand.

Accordingly, the apparatus and method for cleaning fine aggregate according to the embodiment of the present invention can effectively sort various types of foreign substances contained in the fine aggregate.

Further, the apparatus for cleaning fine aggregate according to the embodiment of the present invention is small in size and small in size, so that it is easy to use and maintain.

In addition, the apparatus and method for cleaning fine aggregate according to the embodiment of the present invention minimizes the amount of washing water used, thereby significantly reducing the generation of wastewater and sludge.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a fine aggregate cleaning apparatus according to an embodiment of the present invention; FIG.
2A is a front view of an apparatus for cleaning fine aggregate material according to an embodiment of the present invention.
2B is a side view of the apparatus for cleaning fine aggregate according to an embodiment of the present invention.
3A is a perspective view of an aggregate feeder of the apparatus for cleaning fine aggregate according to an embodiment of the present invention.
3B is a cross-sectional view of the aggregate feeder of the apparatus for cleaning fine aggregate according to the embodiment of the present invention.
3C is an internal plan view of the aggregate feeder of the apparatus for cleaning fine aggregate according to the embodiment of the present invention.
4A is a front view of a centrifugal separator of the apparatus for cleaning fine aggregate according to an embodiment of the present invention.
4B is a side view of the centrifugal separator of the apparatus for cleaning fresh fine aggregate according to the embodiment of the present invention.
4C is a plan view of a centrifugal separator of the apparatus for cleaning fine aggregate according to an embodiment of the present invention.
5A is a perspective view of an agitating device of a fine aggregate cleaner according to an embodiment of the present invention.
5B is a perspective view of a centrifugal separator of the apparatus for cleaning fresh fine aggregate according to an embodiment of the present invention.
5c is a perspective view of a centrifugal separator of the apparatus for cleaning fresh fine aggregate according to another embodiment of the present invention.
6 is a flowchart of a method for cleaning fine aggregate material according to an embodiment of the present invention.

Further objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Before describing the present invention in detail, it is to be understood that the present invention is capable of various modifications and various embodiments, and the examples described below and illustrated in the drawings are intended to limit the invention to specific embodiments It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like are intended to specify that there are stated features, numbers, steps, operations, elements, parts or combinations thereof, But do not preclude the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof.

Also, the terms " part, "" unit," " module, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation, Software. ≪ / RTI >

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a front view of the apparatus for cleaning fresh fine aggregate according to an embodiment of the present invention, and FIG. 2B is a front view of the apparatus for cleaning fresh fine aggregate according to an embodiment of the present invention. Side view of the device.

1 and 2B, an apparatus for cleaning fine aggregate material according to an embodiment of the present invention includes an aggregate feeder 100, a centrifugal separator 200, a particle dehydrator 300, a sand dehydrator 400, 500).

The aggregate feeder 100 serves to uniformly distribute the regenerated fine aggregate, which is in an uneven state, by applying vibration to the centrifugal separator 200.

The centrifugal separator 200 generates vortices while injecting washing water into the centrifugal separator 200. When the regenerated fine aggregate and foreign matter are separated from each other in the vortex due to the specific gravity difference from outside to inside and from top to bottom, It serves to sort out the foreign substances collected at the location.

The foreign substance dehydrator 300 is provided with a foreign matter dewatering screen 310 and serves to remove washing water from the foreign matter selected by the centrifugal separator 200. The foreign matter dewatering screen 310 may be a wire mesh capable of filtering foreign matter, and a conveyor belt vibrating and circulating by a motor force may be formed of the wire mesh material, thereby enabling efficient and continuous dewatering. Further, the dehydrated foreign matter can be discharged to a predetermined place through the conveyor belt for processing by the foreign matter dehydrator 300.

The sand dehydrator 400 is provided with a sand dewatering screen 410 to remove the washing water from the sand selected by the centrifugal separator 200. The sand dewatering screen 410 may be a wire mesh capable of filtering the fine regrind, and the conveyor belt vibrating and circulating by the motor force may be formed of the wire mesh material to enable efficient and continuous dewatering. In addition, the regenerated fine aggregate dehydrated by the sand dehydrator 400 can be discharged to a predetermined place for discharging through the conveyor belt.

The aggregate feeder 100, the centrifugal separator 200, the foreign matter dehydrator 300, and the dehydrator 300 are disposed in the order of the aggregate feeder 100, the centrifugal separator 200, the dehydrator 300, the sand dehydrator 400, Sand dehydrator (400) and settling tank (500). Such a configuration allows the washing operation to be performed by simply supplying the washing water into the centrifugal separator 200 by using the pump, thereby minimizing the use of the power. In addition, the foreign matter dehydrator 300 and the sand dehydrator 400 are located at an upper portion from the ground, so that the foreign matter and the fine aggregate can be dropped on the ground without any additional process, thereby increasing the efficiency of the operation.

The sedimentation tank 500 includes a settling water tank 510, 520, and 530 for precipitating fine powder contained in the washing water removed from foreign matter and fine aggregate through the foreign material dehydrator 300 and the sand dehydrator 400; And a storage tank 540 for storing wash water. The washing water stored in the storage tank 540 can be reused in the washing operation with the washing water that has been precipitated and removed.

The settling water tank may include a plurality of settling water tanks to increase the effect of the settling process. The settling tank of the apparatus for cleaning fine aggregate according to an embodiment of the present invention may include a primary settling tank 510, a secondary settling tank 520, and a tertiary settling tank 530.

The washing water collected in the storage tank 540 can be used for cleaning the fine aggregate by removing the fine powder by the sedimentation action. As described above, in the apparatus for cleaning fine aggregate according to an embodiment of the present invention, the amount of the generated wastewater can be drastically reduced by removing the fine powder from the used washing water and reusing it. Further, since the treatment of the sludge is completed by regularly collecting the fine powder settled in the settling tank, it is not necessary to separately filter or deposit the sludge, thereby facilitating the treatment of the sludge.

3B is a cross-sectional view of the aggregate feeder of the apparatus for cleaning fine aggregate according to the embodiment of the present invention. FIG. 3C is a cross-sectional view of the aggregate feeder of the embodiment of the present invention FIG. 2 is a plan view of an aggregate feeder of the apparatus for cleaning fine aggregate according to the present invention; FIG.

3A to 3C, the aggregate feeder 100 of the apparatus for cleaning fine aggregate material according to the embodiment of the present invention forms an outer appearance of the aggregate feeder 100, and vibrates the aggregate feeder 100 by a motor A vibrating feeder plate 120 for vibrating and uniformly distributing the regenerated fine aggregate material in a nonuniform state, a centrifugal separator 200 And a feed line 130 for feeding the regenerated fine aggregate into a uniform distribution

The aggregate feeder frame 110 forms the appearance of the aggregate feeder 100 to prevent the loaded recycled aggregate from being scattered or scattered. In addition, it also serves to transmit vibration generated in the vibration generator 111 to the vibration supply plate 120. The vibration generating device 111 may be a vibration motor that generates vibration using an electric power.

The fine vibration supplying plate 120 is formed by supplying the fine aggregate into the aggregate input port 140 to supply the regenerated fine aggregate to the upper surface and gradually narrow the width from one end to the other end. When the regenerated fine aggregate is injected into the upper end of the vibration supply plate 120, the regenerated fine aggregate is uniformly distributed in the aggregate feeder frame 110 by the vibration, and as the amount of regenerated fine aggregate is increased, And gradually moves to the other end of the vibration supply plate 120.

The supply line 130 is formed such that the other end of the vibration supply plate 120 is cut in an oblique direction with respect to the entire surface. Thus, the length of the supply line 130 can be maximized. When the vibration supply plate 120 is viewed from the top, the edge of the other end of the vibration supply plate 120 is formed in an oblique cut shape, so that the length of the vibration supply plate 120, As a result, the sand can be dispersed evenly without concentrating in one place.

4a is a front view of the centrifugal separator of the apparatus for cleaning fresh fine aggregate according to the embodiment of the present invention, FIG. 4b is a side view of the centrifugal separator of the apparatus for cleaning fresh fine aggregate according to an embodiment of the present invention, FIG. 2 is a plan view of a centrifugal separator of the fine aggregate cleaner according to the present invention.

As shown in FIGS. 3A to 3C, the centrifugal separator of the apparatus for cleaning fresh fine aggregate according to the embodiment of the present invention comprises an agitator 210 and a centrifugal separator 220.

The stirring device 210 includes a cylindrical stirring body 211 and a pipe connected to the side of the stirring body 211 in a direction perpendicular to the center point of the stirring body 211. The washing water is supplied to the stirring body 211 A first washing water inlet 212 through which the washing water is injected when the washing water is rotated along the inner circumferential surface of the stirring main body 211 when the washing water is introduced into the stirring main body 211, A stirring frame 213 for causing the washing water supplied from the side part to collide with the structure and stirring the mixture, one end part connected to the upper side of the stirring main body 211 and the central part of the stirring main body 211, And a washing water collecting part (214) for collecting the washing water overflowing during the process of stirring the fine aggregate and the washing water as a pipe connected to the device (220) so that the fine aggregate and the washing water can be smoothly School Can.

The centrifugal separator 220 includes a cylindrical centrifugal body 221 and a pipe connected to the upper portion of the side of the centrifugal separator body 221. The centrifugal separator 220 is a pipe connected to the upper portion of the side of the centrifugal separator body 221, A floating separator 222 for sucking suspended foreign substances and discharging the floating foreign substances to the foreign substance dehydrator 300 when the floating body 221 is floated on the water surface of the washing water by the centrifugal separator 221, When the washing water is injected into the centrifugal main body 221 through the pipe, the washing water is injected when the washing water is rotated along the inner circumferential surface of the centrifugal main body 221, so that the inner peripheral surface of the centrifugal main body 221 A second washing water input port 223 for generating a vortex in the centrifugal separation main body 221 by flowing wash water along the centrifugal separation body 221 and a horizontal rib structure 223 formed in a spiral shape along the inner peripheral surface of the centrifugal separation body 221 As a result, A rising vortex generating part 224 for forming a rising vortex so that the foreign matter contained in the fine aggregate can be sorted by the difference in specific gravity between the reclaimed fine aggregate and the regenerated fine aggregate when the washing water is supplied from the water inlet 223, And is discharged to the dehydrator 300 when the debris collects toward the inside of the vortex due to the difference of the specific gravity in the swirling flow generated by the swirling vortex generator 224, And a selection unit 226.

5A is a perspective view of an agitating device of a fine aggregate cleaner according to an embodiment of the present invention.

5A, the stirring apparatus 210 of the apparatus for cleaning fine aggregate material according to the embodiment of the present invention is configured such that fine fine regrind materials are fed from the upper part of the stirring main body 211, .

The loaded reclaimed fine aggregate collides with the stirring frame 213 and is scattered inside the stirring main body 211. The stirring frame 213 may have various shapes inside the stirring main body 211. In the example shown in FIG. 5A, the stirring frame 213 is formed in a radial shape, and it is needless to say that the stirring frame 213 may be formed in other shapes such as a lattice shape, a diamond shape, a cylindrical shape, and a truss structure. 5A, the stirring frame 213 is depicted as being located on the upper part of the stirring main body 211, but it is also possible to provide a stirring member which is not only provided on the upper part of the stirring main body 211, As shown in FIG. In this case, the stirring frame 213 simultaneously collides with the washing water as well as the regenerating fine aggregate, so that the stirring action of the regenerating fine aggregate and the washing water is further activated.

The first washing water inlet 212 is connected to the side of the agitating main body 211 in a direction perpendicular to the center point, and the washing water is introduced using a water pump. The washing water injected through the first washing water inlet 212 is rotated along the inner circumferential surface of the agitating main body 211, which causes the washing water to spread evenly inside the agitating main body 211.

Accordingly, the apparatus for cleaning fine aggregate according to the embodiment of the present invention comprises an aggregate feeder 100 for allowing the fine aggregate to be dispersed and dispersed evenly, a stirring frame 213 for colliding with the regenerated fine aggregate and the washing water to activate agitation, It becomes possible to make an optimum stirring state through the first washing water inlet 212 which allows the washing water to spread evenly.

In addition, the stirring device 210 according to the embodiment of the present invention includes a washing water collecting part 214 for collecting the washing water overflowing during the stirring of the fine aggregate and the washing water.

The washing water recovery unit 214 includes an upper washing water recovery unit 215 having one end connected to the upper side of the stirring main body 211 and the other end connected to the centrifugal separator 220, 211 and the other end of which is connected to the centrifugal separator 220. One end of the upper washing water recovery portion 215 and the central washing water recovery portion 216 are positioned on the upper side of the stirring main body 211 and located below the uppermost portion of the stirring main body 211. Therefore, when the swirling vortex is sprayed by the strong water pressure and the swirling vortex is increased or the excessive amount of the washing water is sprayed and the washing water passes over the uppermost portion of the stirring body 211, the washing water overflowing is collected to the lower side of the stirring apparatus 210 Role. The thus-collected wash water is transferred to the centrifugal separator 220 located below the agitator 210.

In addition, the stirring device 210 according to the embodiment of the present invention may include a funnel-shaped stirring device outlet 217 at the lower part of the stirring main body 211. The fine aggregate and the washing water in the agitating device 210 are poured on the outer side of the agitating main body 211 by the rotating vortex. When the regenerated fine aggregate and the washing water stirred in this state are discharged downward, they do not fall to a predetermined position but spread radially. A stirrer outlet 217 may be provided to prevent this and to keep the outlet position constant. The stirrer outlet 217 is formed in a funnel shape to collect the regenerated fine aggregate and the washing water which are to be spread in a radial manner at the center, and thus the regenerated fine aggregate and the washing water can fall down to a predetermined position in the lower part.

5B is a perspective view of a centrifugal separator of the apparatus for cleaning fresh fine aggregate according to an embodiment of the present invention.

5B, the centrifugal separator of the apparatus for cleaning fresh fine aggregate according to an embodiment of the present invention includes a cylindrical centrifugal separator body 221, a centrifugal separator body 221 at a lower portion of a side of the centrifugal separator body 221, A second washing water inlet port 223 which is a pipe connected in a direction perpendicular to the center point of the centrifugal separator 221 and a rising vortex generating section 224 which is a rib structure in a horizontal direction formed spirally along the inner circumferential surface of the centrifugal separation body 221 ). In this configuration, when the washing water is injected into the lower portion of the side of the centrifugal main body 221 through the second washing water inlet 223, the washing water rises along the rising vortex generating portion 224, Fine aggregate and foreign matter are separated in the eddy current by the specific gravity difference. When the vortex is generated without the action of raising the vortex, the vortex can not be rotated for a long time in the centrifugal separating main body 221, so that the regenerated fine aggregate and the foreign matter are discharged to the lower portion before being separated by the specific gravity difference. 224 move wash water upward to create a vortex to prevent this phenomenon. The washing water can be continuously rotated during the rising and falling periods to secure the time for separating the recycled fine aggregate and the foreign matter in the vortex.

A foreign matter having a specific gravity smaller than that of water is floated to the top of the wash water. The regenerated fine aggregate having a high specific gravity is poured to the outside of the vortex, and the foreign matter having a small specific gravity is pushed into the vortex. At this time, the foreign matter floating on the upper part of the washing water is sucked through the floating sorting part 222 and the foreign matter which is pushed into the vortex through the specific gravity separating part 226.

Therefore, the floating selector 222 is positioned above the centrifugal separation body 221 where the water surface of the washing water is formed, and the non-separating weight selector 226 is positioned at the center of the centrifugal separation body 221, . The floating selector 222 and the specific gravity separator 226 do not require a separate power source. When the washing water is introduced into the second washing water inlet 223 by the water pump and the washing water is heated to a level equal to or more than a certain level at which the one end of the floating discriminating part 222 and the specific gravity discriminating part 226 are located, And the washing water is discharged by the non-uniformity selecting section 222 and the non-uniformity selecting section 226. When the washing water is discharged, the foreign substances separated by the centrifugal force in the rotating vortex are discharged to the outside of the centrifugal separator 220 together with the washing water.

The specific gravity difference separator 226 of the apparatus for cleaning fine aggregate according to the embodiment of the present invention is formed in a cylindrical shape below the opening of the pipe of the specific gravity separator 226 connected to the center of the centrifugal separator 221 And a non-gravity separation screen partition 227 as a partition wall. The specific gravity separator partition wall 227 serves to increase the rotational force of the vortex formed by the rising vortex generators 224.

The washing water is rotated by the washing water introduced into the second washing water inlet 223. Therefore, the rotational power source of the washing water contained in the centrifugal separation main body 221 is limited to the water pump that injects the washing water into the second washing water inlet 223. However, rotating the entire washing water contained in the centrifugal separation main body 221 is inefficient. This is because it is preferable to limit the portion where the rotational force is actually required to the upper portion of the centrifugal separation body 221. When the fine aggregate and the washing water stirred by the centrifugal separator 220 are introduced, the centrifugal action is mostly performed at the upper part of the centrifugal separator 221. Therefore, strong rotation is required at the upper part of the centrifugal separation body 221, but not at the lower part. Separating partition wall 227 separates the rising vortex generating portion 224 and the lower center portion of the centrifugal separating main body 221 so as to rotate the rising vortex generating portion 224 and the centrifugal separating body 221 To perform more efficiently.

In addition, it is not necessary for the washing water to rotate strongly around the specific gravity separator 226. If the washing water is rotated around the specific gravity separator 226, the foreign matter gathered in the central portion of the centrifugal separation body 221 may spread. The specific gravity separator partition wall 227 serves to prevent strong rotation at the center of the centrifugal separation body 221.

In addition, the centrifugal separator 220 according to the embodiment of the present invention may include a funnel-shaped centrifugal separator outlet 228 at the bottom of the centrifugal separator body 221. When the fine aggregate and the washing water agitated from the centrifugal separator 220 and the washing water are discharged downward, they do not fall to a predetermined position or may spread radially. A centrifuge outlet 228 may be provided to prevent this and to maintain a constant outlet position. The centrifugal separator outlet 228 is configured in the form of a funnel to collect the regenerated fine aggregate and the wash water at the center, thus allowing the regenerated fine aggregate and the wash water to fall down to a predetermined position at the bottom.

5c is a perspective view of a centrifugal separator of the apparatus for cleaning fresh fine aggregate according to another embodiment of the present invention.

5c, the centrifugal separator of the apparatus for cleaning fine aggregate material according to another embodiment of the present invention may have a cylindrical upward vortex generation phenomenon that separates the rising vortex generation portion 224 and the center portion of the centrifugal separation body 221 from each other And may further include a partition wall 225.

The rising vortex generating partitions 225 serve to increase the rotational force of the vortex generated by the rising vortex generating part 224 like the specific gravity separating part barrier 227. And also performs an additional role of increasing the rotation of the washing water in the rising vortex generating part 224.

It is preferable that the portion requiring rotation force for separating the fine aggregate from the foreign matter is limited to the upper portion of the centrifugal separation body 221 and the flow of the washing water in the rising vortex generation portion 224 may be disturbed by the rotating vortex . The rising vortex generating partition wall 225 separates the rising vortex generating section 224 from the central part of the centrifugal separation body 221 to rotate the upward vortex generation section 224 and the centrifugal separation body 221 And makes the flow of the washing water smooth in the rising vortex generating portion 224, thereby increasing the rotation of the washing water.

6 is a flowchart of a method for cleaning fine aggregate material according to an embodiment of the present invention.

As shown in FIG. 6, in the fine aggregate cleaning apparatus according to the embodiment of the present invention, in the fine aggregate cleaner of the present invention, the fine aggregate feeder 100 is provided with a uniform distribution (S200) in which the fine aggregate and the washing water are smoothly stirred through the stirring device (210); and a centrifugal separator (220) A centrifugal separation process (S300) for separating foreign matter collected inside the vortex due to floating foreign matter and specific gravity difference (S300), a foreign matter dehydration process for removing washing water from the foreign matter selected during the centrifugal separation process A sand dewatering process (S500) for removing wash water from the fine regrind material selected during the centrifugal separation process through the sand dehydrator (400); and a dewatering process It includes,; the fine powder contained in the future the wash water removed from the dewatering process, precipitation process (S600) to precipitate.

As described above, the apparatus for cleaning fine aggregate and the method of cleaning according to the embodiment of the present invention are characterized in that the apparatus for cleaning fine aggregate and the method of cleaning according to the embodiment of the present invention are used for cleaning foreign matter contained in fine fine- And a centrifugal separator including an ascending vortex generating section for generating a centrifugal force through the vortex and a specific gravity separating section for selecting foreign matter collected inside the vortex due to the centrifugal force, , It is understood that the basic technical idea is to effectively select various kinds of foreign matters contained in the recycled fine aggregate and to minimize the amount of washing water used.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, it is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention, but rather are not intended to limit the scope of the technical idea of the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100 ... aggregate feeder
110 ... aggregate feeder frame
111 ... vibration generating device
120 ... vibration supply plate
130 ... supply line
140 ... aggregate inlet
150 ... aggregate outlet
200 ... Centrifuge
210 ... stirring device
211 ... stirring body
212 ... First washing water inlet
213 ... stirring frame
214 ... wash water recovery unit
215 ... upper wash water recovery part
216 ... central wash water recovery part
217 ... Stirring device outlet
220 ... Centrifuge
221 ... centrifugal body
222 ... floating detector
223 ... 2nd washing water inlet
224 ... rising vortex generating part
225 ... Rising vortex generation partitions
226 ... specific gravity difference discrimination unit
227 ... bulkhead sorting bulkhead
228 ... centrifuge outlet
300 ... Foreign dehydrator
310 ... Dewatering screen
400 ... Sand Dehydrator
410 ... sand dewatering screen
500 ... sedimentation tank
510 ... Primary settling tank
520 ... Second settling tank
530 ... 3rd settling tank
540 ... Storage tank

Claims (9)

1. A cleaning apparatus for cleaning foreign matter contained in recycled fine aggregates by using washing water,
And a supply line for uniformly distributing the fine aggregate to the regeneration fine aggregate, and a feed line for uniformly distributing the regenerated fine aggregate to the regeneration fine aggregate inlet of the slurry removing apparatus. Wow,
And a pipe connected to an upper portion of a side portion of the centrifugal separator body so that foreign matter contained in the reclaimed fine aggregate stirred with the wash water is floated above the water surface of the wash water by a specific gravity difference between the wash water and the wash water, The centrifugal separator according to any one of claims 1 to 3, wherein the centrifugal separator is a centrifugal separator. The centrifugal separator according to claim 1, A washing water inlet for spraying the washing water when the washing water rotates along an inner circumferential surface of the centrifugal main body; and a horizontal rib structure spirally formed along the inner circumferential surface of the centrifugal body, A rising vortex generating part for forming a rising vortex when charged, And a centrifugal separator for sucking and discharging the foreign matter collected inside the centrifugal separator when the centrifugal separator is assembled to the inside of the vortex due to the difference in specific gravity in the turbulence generated by the ascending vortex generator, A centrifugal separator provided below the opening of the pipe of the specific gravity separator connected to a central portion of the centrifugal separator and increasing the rotational force of the vortex formed by the rising vortex generators;
A foreign matter dehydrator having a foreign matter dewatering screen for removing washing water from the foreign matter selected by the centrifugal separator;
A sand dehydrator having a sand dehydrating screen for removing washing water from the fine aggregate recycled by the centrifugal separating apparatus;
A sedimentation tank for precipitating the fine powder contained in the washing water having been washed,
The fine aggregate cleaning device
The method according to claim 1,
The settling tank,
A sedimentation water tank for precipitating the foreign matter and the fine powder contained in the washing water removed from the regenerated fine aggregate through the foreign matter water dehydrator and the sand dehydrator;
And a storage tank for storing the washing water after the fine powder has been settled and removed for reuse,
The fine aggregate cleaning device
The method according to claim 1,
The aggregate feeder includes:
An aggregate feeder frame including an aggregate feeder for forming an outer appearance of the aggregate feeder, and a vibration generator for generating vibrations by a motor force on the aggregate feeder;
The vibrating feeding plate being supplied with the fine regrinding aggregate on an upper surface thereof and gradually becoming narrower from one end to the other end;
The supply line having a shape cut in an oblique direction with respect to the other end front face of the vibration supply plate,
The fine aggregate cleaning device
The method according to claim 1,
A cylindrical stirring body;
And a pipe connected to the side of the agitating main body at a right angle to the center point of the agitating main body so that the washing water is injected into the agitating main body through the pipe when the washing water rotates along the inner circumferential surface of the agitating main body, A washing water inlet,
A stirrer frame fixed to the inside of the agitating main body so that the regenerated fine aggregate charged at the top and the wash water injected at the side collide with and agitate the structure,
Wherein the one end portion is connected to a side portion of the upper portion of the agitation main body and a central portion of the agitation main body and the other end portion is connected to the centrifugal separating device, And a washing water collecting part for collecting the washing water,
A stirring device for smoothly stirring the regenerated fine aggregate and the washing water with only the water pressure for inputting the washing water into the centrifugal separator,
Further comprising an upper portion of the centrifugal separator
delete delete 1. A cleaning apparatus for cleaning foreign matter contained in recycled fine aggregates by using washing water,
A cylindrical centrifugal separation body,
A pipe connected to an upper portion of a side portion of the centrifugal main body so that foreign matter contained in the fine regenerated raw material agitated with the washing water is floated above the water surface of the washing water by a difference in specific gravity between the washing water and the washing water, And a discharge unit
A pipe connected to a lower portion of a side of the centrifugal main body at a right angle to a center point of the centrifugal main body, when the washing water is introduced into the centrifugal main body through the pipe, the washing water rotates along an inner circumferential surface of the centrifugal main body A washing water inlet for spraying the washing water,
A rising vortex generating unit for generating a vortex rising when the washing water is introduced into the washing water inlet through a horizontal rib structure spirally formed along the inner circumferential surface of the centrifugation body;
A pipe connected to a center portion of the centrifugal main body, wherein when the foreign matter is gathered toward the inside of the vortex due to the difference in specific gravity in the vortex generated by the rising vortex generating portion, the foreign matter collected in the inside is sucked, ≪ / RTI >
A cylindrical partition wall provided below the opening of the pipe of the specific gravity separator connected to the center of the centrifugal main body and increasing the rotational force of the vortex formed by the rising vortex generators,
Wherein the recycled fine aggregate centrifugal cleaning device
delete An aggregate feeder including a vibration supply plate for uniformly distributing the regenerated fine aggregate in an uneven state by applying vibration to the regenerated fine aggregate, and a feed line for injecting the regenerated fine aggregate into a uniform distribution,
And a pipe connected to the side of the agitating main body at a right angle to the center point of the agitating main body. When the washing water is injected into the agitating main body through the pipe, the washing water rotates along the inner circumferential surface of the agitating main body A stirrer frame fixed to the inside of the agitating main body so that the regenerating fine aggregate charged at the top and the wash water injected at the side collide with and agitate the structure, Wherein one end portion is connected to a side portion of an upper portion of the agitation main body and a center portion of the agitation main body and the other end portion is connected to a centrifugal separating device for recovering the washing water overflowing during the agitation of the regenerated fine aggregate and the washing water And a washing water collecting portion, wherein the regenerating fine aggregate A stirrer for stirring the washing water smoothly; and
A floating particle sorting part which floats the foreign matter contained in the fine regenerated raw material agitated with the washing water to float over the water surface of the washing water by a specific gravity difference between the washing water and the washing water; A rising vortex generating part generating a vortex so that a foreign matter can be sorted by a specific gravity difference with respect to the regenerated fine aggregate; and a rising vortex generating part generating a vortex flow in the vortex generated by the rising vortex generating part, A centrifugal separator for separating the foreign matter gathered inside and outside the centrifugal separator,
A foreign matter dehydrator having a foreign matter dewatering screen for removing washing water from the foreign matter selected by the centrifugal separator;
A sand dehydrator having a sand dehydrating screen for removing washing water from the fine aggregate recycled by the centrifugal separating apparatus;
And a sedimentation tank for precipitating the fine powder contained in the washing water,
The fine aggregate cleaning apparatus according to claim 1,
And supplying the regenerated fine aggregate to the regenerated fine aggregate cleaner through the aggregate feeder in a uniform distribution;
A stirring process in which the fine aggregate and the washing water are smoothly stirred through the stirring device;
A centrifugal separation step of separating the foreign matter collected inside the vortex due to the foreign matter floating on the water surface of the washing water and the specific gravity difference through the centrifugal separator;
A foreign matter dewatering process for removing the washing water from the foreign matter selected in the centrifugal separation process through the foreign matter dehydrator;
A sand dehydrating step of removing the washing water from the reclaimed fine aggregate selected in the centrifuging step through the sand dehydrator;
And a sedimentation step of precipitating the fine powder contained in the washing water removed in the foreign matter dewatering process and the sand dewatering process through the settling tank,
A fine fine aggregate cleaning method

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