KR101078274B1 - Apparatus for removing small dust from reclaimedaggregates - Google Patents

Abstract

Disclosed is an apparatus for removing particulates of circulating coarse aggregate, which is configured to improve the quality of aggregates by removing particulates adhered to the aggregate surface in the process of producing circulating coarse aggregate for dry through the construction waste intermediate treatment process. The fine particle removal device of the disclosed circulating coarse aggregate is formed with an inlet through which thick circular aggregate is input at one side of the upper end, and a discharge duct for dispersing dust is connected at the center of the upper end, and coarse circulating aggregate with fine particles removed at one side of the lower end. Discharge port is formed, and the center is formed in the lower end of the fine powder discharge port for discharging the fine powder, and installed in the case, a plurality of perforations are formed to filter the fine powder is formed, is installed to be rotatable by the rotating means, A transfer disc portion for rotating and transporting the thick circular aggregate dropped into the inlet side to the discharge side, and a plurality of radially arranged at an angle with respect to the center of the transfer disc portion and disposed at an upper portion corresponding to the transfer disc portion Spaced apart, each of which is rotatably installed by a driving means, A plurality of brushes are provided, characterized in that it comprises a rotating brush for cleaning the dust particles attached to the surface of the thick circular aggregate transported along the transfer disc portion.

Description

Circulating coarse aggregate fine powder removal device {APPARATUS FOR REMOVING SMALL DUST FROM RECLAIMEDAGGREGATES}

The present invention relates to an apparatus for removing circulating coarse aggregate fine powder, and more specifically, to remove fine particles attached to the aggregate surface in the process of producing circulating coarse aggregate for concrete through an intermediate process for construction wastes to improve the quality of aggregate. As well as improving, it relates to a circulating coarse aggregate fine powder removal device that can collect the scattering dust generated during the fine powder removal process and can easily collect the removed fine powder.

Many structures, such as bridges, roads, and other buildings, which have been created in the process of urbanization and industrialization, are gradually aging over time. Especially, in recent years, reconstruction and redevelopment has been actively promoted in many regions to improve the living culture. It is a reality.

In the process of dismantling, reconstructing, and redeveloping old structures, many construction wastes are generated. When these wastes are reclaimed, landfills are not only difficult to secure, but also have a high landfill cost and have a significant impact on the environment. Various measures have been taken to recycle the construction wastes in two aspects, including the protection of the natural environment and the recycling of resources, and various treatment devices for construction wastes have been developed in Korea.

Therefore, in terms of eco-friendliness and recycling of resources, construction wastes generated at the time of construction and dismantling of building structures are collected in a predetermined place without being landfilled, and then crushed, foreign matter sorting, recycling aggregate and mortar sorting, and surface of aggregate It is produced with high quality resources through a series of intermediate treatment processes such as mortar stripping process attached to it.

On the other hand, among the recycled aggregates produced through the intermediate treatment process, the circulating coarse aggregates have a particle size defect of the aggregates produced with fine grains of 0.4 mm or less generated during the weather conditions and the amount of waste to be injected and the shredding process, and the diameter of 0.8 mm. Problems arise in excess and clay mass content. Therefore, it is important to improve the quality of aggregates by removing fine particles of 0.4 mm or less in the production process of circular coarse aggregates for concrete.

In the conventional method of removing fine particles from circulating coarse aggregate, wet or dry circulating aggregate production equipment is generally used to collect crushed aggregates to obtain recycled aggregates. Blower installed on one side of the vibrating screen in the process of separating the sediment and fines from circulating coarse aggregate by vibrating screen while separating the metallic material such as rebar by going through the magnetic separator which is a separator. It has a structure that separates some light waste and fines.

However, the conventional method for removing fine particles from the circulating coarse aggregate is not to remove fine particles by directly touching the outer surface of the circulating coarse aggregate, but to indirectly remove fine particles by vibration and wind. Fine particles are not properly separated on the outer surface of the coarse aggregate, there was a problem that can not obtain a high-quality recycled aggregate.

In addition, when removing the fine particles from the circulating coarse aggregate, dust and fine particles are scattered to the surroundings, serious environmental pollution and adversely affect the working environment, there was a problem that complaints are generated accordingly. In order to reduce dust generation by spraying water into the vibrating screen during the foreign material selection process, the cost increase due to the separate sewage treatment and excessive use of water are other factors. There is a problem that the foreign matter is caught in the vibrating screen or conveyor belt, causing mechanical failure.

The present invention has been made to solve the above problems, an object of the present invention is to remove the fine particles attached to the aggregate surface in the process of producing cyclic coarse aggregate for concrete through the construction waste intermediate treatment process to improve the quality of the aggregate It is to provide a circulating coarse aggregate fine powder removal device configured to improve.

In addition, an object of the present invention is to provide a circulating coarse aggregate fine powder removal device configured to easily collect the scattering dust generated in the process of removing the fine powder from the circulating coarse aggregate and to easily collect the removed fine powder It is.

An object of the present invention is formed in the inlet port is a coarse circulating aggregate is injected into one side, the discharge center is connected to the discharge duct is discharged dust scattered at the top center, the outlet portion is formed coarse circulating aggregate is removed from one side of the lower end In the bottom center, a case having a fine powder discharge port through which fine particles are discharged is formed, and a plurality of perforations are formed inside the case, and the fine particles are filtered and installed to be rotatable by a rotating means. The transfer disk unit for rotating and transporting the falling coarse aggregate aggregate to the outlet side, and a plurality of radially arranged at an angle with respect to the center of the transfer disc portion, are disposed spaced apart from the upper portion corresponding to the transfer disc portion, driving It is installed so as to be able to rotate each by means, and a plurality of brushes are provided along the outer circumferential surface. To provide a circulating coarse aggregate particulate minutes removing device, characterized in that configured to include a rotary brush for cleaning off the particulate matter attached to the surface of the minute coarse recycled aggregate being conveyed along the transfer disc.

The present invention can not only improve the quality of the aggregates by removing the fine particles adhered to the aggregate surface in the process of producing cyclic coarse aggregate for dry through the construction waste intermediate treatment process, but also scattering generated during the fine powder removal process Dust can be collected and the removed particulates can be easily collected.

1 is a cutaway perspective view showing an apparatus for removing particulates of a circular coarse aggregate according to the present invention;
Figure 2 is a cross-sectional view showing a fine particle removal device of the circular coarse aggregate according to the present invention,
Figure 3 is a longitudinal cross-sectional view for explaining the installation structure of the rotating brush portion in the present invention.

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

1 is a cutaway perspective view showing a fine powder removing device of the circular coarse aggregate according to the present invention, Figure 2 is a cross-sectional view showing a fine powder removing device of the circular coarse aggregate according to the present invention, Figure 3 is a rotation in the present invention Longitudinal cross-sectional view for demonstrating the installation structure of a brush part.

Referring to this, the present invention includes a case 10, the transfer disc portion 20 and the rotary brush portion 30.

The case 10 is formed with an inlet 11 through which a thick circular aggregate is input at one side of the upper end, and a discharge duct 12 for discharging shattering dust is connected at the center of the upper end, and a coarse circular aggregate having fine particles removed at one side of the lower end. Is discharged to the discharge port 13 is formed, the fine powder discharge port 14 is formed in the lower center of the fine powder is discharged. In addition, a support (not shown) may be installed on the bottom of the case 10 so that the case may be firmly supported with respect to the ground.

Here, the aggregate input conveyor (C1) is installed at the upper end of the inlet 11, the coarse circulating aggregate is transported by this conveyor, the coarse circulating aggregate with fine particles attached to the surface into the inlet 11 is introduced. And, as described above, the circulating aggregate introduced into the case 10 is an aggregate that is not of good quality compared to natural aggregates due to the fine particles adhered to the surface even after the intermediate treatment process. However, the coarse circulation aggregate put into the case is transported through the transfer disc portion 20 to be described later in the case 10 while removing the fine particles attached to the surface of the recycle aggregate by the rotating brush portion 30 circulation improved quality It can be recycled into aggregate. At this time, the scattering dust generated when removing the fine powder from the case 10 in the coarse circulation aggregate through the discharge duct 12 is discharged. Here, the exhaust duct 12 may be provided with a blower (not shown) so as to easily suck the dust generated in the case 10 to be discharged to the outside. In addition, an aggregate discharge conveyor (C2) is installed at the inlet of the discharge port (13), and the coarse circulation aggregate from which fine particles are removed by the conveyor is transferred to a separate collection place. In addition, the fine particle discharge conveyor (C3) is installed below the fine particle discharge port 14 to collect the fine powder removed in the case 10 to be collected in a separate collection place.

The transfer disc part 20 is installed inside the case 10, and a plurality of perforations 21 through which fine particles are filtered out are formed. That is, the fine particles separated from the circular coarse aggregate is filtered through the perforated 21 of the transfer disc, preferably, the size of the perforated 21 is provided to a size that allows fine particles of 0.4 mm or less to pass therethrough. desirable. In addition, the transfer disc part 20 is installed to be rotatable by a rotating means, and is configured to rotate and transport the coarse circulation aggregate dropped into the inlet 11 and rotated to the outlet 23.

Here, the rotating means may be a known technique can be applied if the configuration that can rotate the transfer disc portion 20 in the case 10, but specifically, preferably, as shown in Figure 2, the transfer disc portion A cylindrical gear box 21 is formed in the center of the cylinder 20 having an upper and lower side open and an inner ring gear 21 a formed on an inner circumferential surface thereof, and the rotation means is the transfer disc portion 20. Drive motor 110 is installed in the central portion of the drive motor rotatable coupled to the motor shaft 111 of the drive motor and reducer 120 to reduce the drive speed at low speed, coupled to the reducer 120 is rotated The central gear shaft 130 is installed so as to be rotatable between the inner ring gear 21a of the gear box and the central gear shaft 130 so that rotational force of the central gear shaft 130 can be transmitted. Transmitter which transmits to negative gearbox 21 It is configured to include a shaft 140 is preferred. That is, the rotational force of the drive motor 110 is transmitted to the inner ring gear 21a of the gearbox through the reduction gear 120, the central gear shaft 130, and the transmission gear shaft 140, thereby transferring the transfer disc portion 20. It is configured to rotate.

Furthermore, a cylindrical support bracket 40 having an annular support jaw 41 formed therein is installed at the inner center of the case 10, and an annular locking jaw 21b is formed at the upper end of the gear box 21 of the transfer disc part. It is preferable that the transfer disk portion 30 is rotatably installed in the cylindrical support bracket 40 in a state in which the supporting jaw 41 is seated and supported by the supporting jaw 41. Here, a bearing (B) is installed between the support jaw 41 and the locking jaw 21b and between the support jaw and the transfer disc portion so that the transfer disc portion 30 can be easily rotated on the cylindrical support bracket 40. Furthermore, it is preferable that an annular outer support jaw 50 is provided on the inner surface of the case 10 so that the outer end of the transfer disc portion 20 is seated and rotatably supported. Here, the bearing (B) is installed between the outer support jaw 50 and the outer end of the transfer disc portion 20 is preferably configured to smoothly rotate the end of the transfer disc portion in the outer support jaw.

As shown in FIG. 3, the rotating brush part 30 is disposed at a plurality of radially at an angle with respect to the center of the transfer disc part 20, and is disposed on an upper portion corresponding to the transfer disc part 20. Spaced apart. That is, the rotary brush part 30 is to clean the surface of the circular coarse aggregate is rotated and fed into the case 10 through the transfer disc portion 20. The rotating brush part 30 is rotatably installed by a driving means, and a plurality of brushes 31 are provided along an outer circumferential surface of the rotary brush part 30 to the surface of the coarse circulating aggregate conveyed along the transfer disc part 20. It is configured to clean the attached fine powder.

Here, the rotary brush unit 30 may be configured to transmit each driving force to each of the rotary brush unit 30 independently, but to rotate the rotary brush unit at the same time by using one drive motor It is preferably configured to be able to simplify the structure and save operating costs. To this end, as shown in Figure 2, the shaft 32 of the rotating brush portion is coupled to the snow hole 211 formed to form a certain angle radially on the outer surface of the cylindrical support box 210 is supported rotatably The drive means is a drive motor 220 is installed in the inner center of the support box 210 and the reducer 220 is rotatably coupled to the motor shaft 221 of the drive motor to reduce the drive speed at a low speed ), A large bevel gear 230 coupled to the speed reducer, and a small bevel gear coupled to an end of the shaft 32 of the rotating brush part and engaged with the large bevel gear 230 to rotate the rotating brush part. It is preferred to include 240. That is, when the drive motor 210 rotates, the reduction gear 220 and the large bevel gear 230 rotate to transmit the rotational force to each small bevel gear 240 to be fixed to the shaft hole 211 of the support box. Furnace rotary brush 30 is configured to clean the fine particles of the surface of the circulating coarse aggregate is rotated to the transfer disc portion 20 while rotating each.

Here, although the present invention may generate power to the rotating means and the driving means by configuring the driving motor 110 and the driving motor 210 of the rotating means, respectively, as shown in the driving motor bidirectional drive motor It is preferable to be configured to provide power to the rotating means and the driving means at the same time.

On the other hand, a portion formed with the discharge port 13 inside the case is installed to the upper side of the transfer disc portion 20, the transfer through the transfer disc portion 20 is a thick circular aggregate passing through the discharge port 13 portion Discharge chute (50) is preferably configured to discharge the direction and guide the discharge outlet side. That is, the discharge chute 50 serves to easily discharge the circulating coarse aggregate through the outlet by converting and guiding the circulating coarse aggregate from which the fine particles transported through the transfer disc part 20 to the outlet 13 side. Do this.

Now, the operation of the circulating coarse aggregate fine powder removing device according to the present invention configured as described above

When the circulating coarse aggregate selected by the particle size of the predetermined size through the intermediate treatment process is transferred through the aggregate input conveyor (C1), the circulating coarse aggregate falls into the case 10 through the inlet 11 of the case.

Then, the circular coarse aggregate dropped into the case through the inlet 11 of the case falls to the upper surface of the transfer disc portion 20 installed inside the case. At this time, the transfer disc portion 20 is rotated by the driving force of the rotating means and the circular coarse aggregate attached to the surface is rotated to the outlet side of the case by the rotation of the transfer disc portion 20. At the same time, the rotary brush unit 30 radially installed on the upper side of the transfer disc unit 20 rotates while being supported and fixed to the support box 210 by the driving force of the driving means, and rotates the rotating brush unit 30. Is configured to clean the dust particles attached to the surface of the coarse circulation aggregate is rotated along the transfer disc portion 20. Here, since the rotating brush part 30 has a predetermined angle from the inlet 11 to the outlet 13 and a plurality of radial is installed, the circulating coarse aggregate is transferred along the transfer disc portion 20, and the fine particles attached to the surface thereof. Minutes will be cleaned completely. In addition, since the rotation direction of the rotary brush unit 30 rotates in the opposite direction to the transfer direction of the circular coarse aggregate transported along the transfer disc unit 20, the cleaning efficiency is also greatly improved. Then, the coarse circulating aggregate from which the fine powder is removed is diverted and guided by the discharge chute 60 to be discharged to the discharge port 13, and is transported by the aggregate discharge conveyor C2 configured at the discharge inlet to a separate collection place. Is collected.

Here, the scattering dust generated when cleaning the fine particles of the circular coarse aggregate in the case 10 is discharged through the discharge duct 12 is collected in a predetermined place, the fine particles separated through the rotary brush unit 30 Is discharged to the fine powder outlet 14 formed in the lower case through the perforated 21 of the transfer disc portion and then collected to a predetermined place through the fine powder discharge conveyor (C3).

10: Case 11: Slot
12: exhaust duct 13: outlet
14: fine particle outlet 20: transfer disc portion
21: perforation 30: rotating brush portion
31: Brush 32: Axis
40: cylindrical support bracket 41: support jaw
50: outer support jaw 60: discharge chute
110: drive motor 120: reducer
130: center gear shaft 140: transmission gear shaft
210: drive motor 220: reducer
230: large bevel gear 240: small bevel gear

Claims (5)

One side of the upper part is formed with an input port through which coarse circulation aggregate is input, and an upper part of the upper part is connected to the discharge duct for discharging scattering dust, and one side of the lower part is formed with an outlet for discharging coarse circulation aggregate from which fine particles are removed. A case having a fine particle discharge port through which powder is discharged,
A transfer disc part installed inside the case and formed with a plurality of perforations through which fine particles are filtered, and rotatably installed by a rotating means, and rotating and transporting the thick circular aggregate dropped into the inlet side to the outlet side; ,
A plurality of radially arranged at an angle with respect to the center of the transfer disc portion is disposed, spaced apart from the upper portion corresponding to the transfer disc portion, are each rotatably installed by a driving means, a plurality of brushes along the outer peripheral surface Is provided, circulating coarse aggregate fine powder removing device, characterized in that it comprises a rotating brush for cleaning the dust particles attached to the surface of the coarse circular aggregate conveyed along the transfer disc portion.
The method of claim 1,
In the center of the transfer disc portion, a cylindrical gearbox is formed in a cylindrical shape with the upper and lower sides open and the inner ring gear is formed on the inner circumferential surface,
The rotating means includes a drive motor installed in the center portion of the transfer disc portion, a reducer rotatably coupled to the motor shaft of the drive motor and decelerate the drive speed at a low speed, and a center coupled to the reducer and rotatably installed. Circulation coarse comprising a gear shaft and a transmission gear shaft which is rotatably engaged between the inner ring gear of the gear box and the central gear shaft to transmit the rotational force of the central gear shaft to the gear box of the transfer disc portion. Aggregate particulate removal device.
The method of claim 2,
A cylindrical support bracket having an annular support jaw formed inward is installed at the center of the case, and an annular locking jaw is formed at the top of the gear box of the transfer disc to the outside, so that the locking jaw is seated and supported on the support jaw. The source plate portion is rotatably installed on the cylindrical support bracket,
An annular outer support jaw is installed on the inner surface of the case, wherein the outer end portion of the transfer disc is configured to be rotatably supported so as to be rotatably disposed.
The method of claim 1,
The shaft of the rotating brush portion is coupled to the shaft hole formed to form a certain angle radially on the outer surface of the cylindrical support box, respectively, is supported rotatably,
The drive means includes a drive motor installed in the inner center of the support box, a reducer rotatably coupled to the motor shaft of the drive motor and to reduce the drive speed at a low speed, and a large bevel gear coupled to the reducer; And a small bevel gear coupled to the shaft end of the rotating brush part and engaged with the large bevel gear to rotate the rotating brush part.
The method of claim 1,
It is installed in a portion formed in the discharge port inside the case, is installed on the upper side of the transfer disc portion, the coarse circulation aggregate which is transferred through the transfer disc and passes through the discharge portion to the direction of the discharge port to discharge to the discharge port Circulating coarse aggregate fine powder removing device, characterized in that the discharge chute configured.

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