KR100469097B1 - An air washing device of cylinder type for recycling construction waste - Google Patents

Abstract

PURPOSE: Provided is a cylinder type air cleansing device to clean aggregates having passed through a sand mill to minimize the dispersion of aggregate particles and separate fine foreign materials from the aggregates more effectively. CONSTITUTION: The cylinder type air cleansing device for use in recycling aggregates includes a cylindrical shaped body(10), an aggregate inlet(11), and an aggregate outlet(12). Inside of the body(10) is a longitudinal tube(21) and a rotator(20) having a plurality of rotating wings(22) formed in zigzag. The top end of the tube(21) functions as an air inlet(24), and many air-through holes(25) are formed in the longitudinal direction of the tube(21). Also, a cover(41) having an air outlet(42) is formed outside the body(10), so that fine dusts are discharged through the air outlet(42) via an inlet/outlet space(40).

Description

Cylindrical air cleaner for recycled fine aggregates {AN AIR WASHING DEVICE OF CYLINDER TYPE FOR RECYCLING CONSTRUCTION WASTE}

The present invention relates to a cylindrical air cleaning device for crushing waste concrete, which is a construction waste, and regenerating it into fine aggregates such as sand, and separating and cleaning foreign substances mixed or buried in the aggregates by the force of wind, that is, wind power.

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

Many construction wastes are generated in the process of dismantling, reconstruction, and redevelopment of old structures. If the construction wastes are reclaimed, landfills are not only difficult to secure, but also have a high cost of landfills and seriously affect the environment.

Accordingly, various measures have been taken in each country to treat construction waste in two aspects, such as protection of the natural environment and recycling of resources. In Korea, many treatment devices for construction waste have been developed.

Construction wastes include earth and sand, construction wastes including waste concrete, waste asphalt, waste bricks, waste tiles, waste stones, waste and waste blocks, waste woods, waste synthetic resins, metals such as rebar, Waste papers, waste glass, sludge waste fibers, incineration residues and the like can be divided into mixed wastes.

As such, construction wastes containing various wastes are separated into landfill, incineration, and recycling through treatment.In recent years, construction wastes, which occupy a considerable portion of waste, are aggregated into various structures or aggregates. There is a plan to increase the recycling of waste by recycling for use.

These wastes, such as waste concrete, are usually crushed to smaller particle sizes by jaw crushers and second crushers or cone crushers and sand mills, while iron or flakes are transported by hand or by charity during transfer to each stage. Separation work, and most of the soil is separated by screen conveyor, etc., the remaining part of the soil, waste wood and waste resin is recycled into aggregate by separating and screening specific gravity using hydraulic or wind power.

Among the treatment methods described above, the specific gravity separation and selective washing by the force of water, that is, by hydraulic power, is usually performed by the buoyancy of the water contained in the tank tank or the water flow such as an artificially formed vortex, so that the washing or separation effect is relatively excellent, Due to the large size of the tank and the economical efficiency of expensive facilities, a large amount of water was used, which caused difficulties in the environmental pollution caused by the washing water, such as sludge generation, and the location of treatment facilities due to the water situation.

On the other hand, wind power, that is, wind power specific gravity separation method by blower is a relatively simple facility, but it is economically advantageous, but there is a problem in working environment due to scattering fine dust, and the cleaning or sorting effect is inferior to hydraulic method. It has been used as a simple or auxiliary means so far.

The present invention minimizes the scattering of fine dust and is mixed or buried at the same time to minimize the scattering of fine dust by treating the aggregates that generate a large amount of fine dust components, such as soil powder and cement powder, mainly through the sand mill It is an object of the present invention to provide an air cleaning device for fine aggregates that can more effectively carry out the separation and cleaning of fine foreign matter.

1 is a longitudinal sectional view illustrating a preferred embodiment of the present invention.

2 is a longitudinal sectional view illustrating another modified example of the present invention.

* Description of the symbols for the main parts of the drawings *

11: aggregate inlet 12: aggregate outlet

20: rotating body 21: tube

22: rotor blade 30: motor

In order to achieve the above object, the present invention provides an aggregate inlet and an aggregate outlet respectively at both ends of the cylindrical cylindrical body, and the plurality of rotary blades are alternately housed in the shaft alternately in the longitudinal direction, and the cylindrical cylinder The outer circumferential surface portion of the sieve is characterized in that the cover member is provided with a suction discharge space portion is formed in communication by a plurality of communication holes.

In the present invention, the air inlet and the air outlet can be selectively installed at the position of the enemy of the shaft or the intake and exhaust space.

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

1 is a view illustrating a preferred embodiment of the present invention, as shown, the aggregate inlet 11 is formed on one side of the upper end of the cylindrical cylindrical body 10, the opposite end of the aggregate outlet 12 is Formed.

Here, the lower end portion of the aggregate inlet 11 is preferably laid down against the backflow prevention means such as a pipe 13 made of a flexible material such as a woven fabric so that the wind does not flow back from the aggregate inlet 11, and the aggregate outlet 12 It is also preferable to configure the outlet to be gradually narrowed, such as a funnel, so that the sand is discharged in a somewhat accumulated state so that the wind does not go through the aggregate outlet 12 as possible.

In the cylindrical cylindrical body 10, a plurality of rotary blades 22 are rotated on the tubular body 21 arranged in the longitudinal direction, and the rotors protruding over a predetermined section are alternately stored therein, and the axis of the rotor The upper end of the functioning tubular body 21 is mechanically connected to the reduction motor 30.

In addition, the upper end of the tubular body 21 is opened so as to function as an air inlet 24, and the outer peripheral wall of the tubular body 21 portion accommodated in the cylindrical cylindrical body is almost innumerable over the entire length except for a part of the lower end. The communication ball 25 is open.

On the other hand, around the outer circumferential wall surface of the cylindrical cylindrical body 10 also forms a myriad communication hole 25 and covers the cover member 41 having a suction and discharge space 40 around the air outlet ( 42) is installed to be connected to the duct to the dust collecting facility not shown.

According to the present invention configured as described above, when the aggregate crushed in the sand mill is introduced into the aggregate inlet 11 of the upper end of the cylindrical cylindrical body 10, the weight falls in the cylindrical cylindrical body 10 by the weight of the aggregate. Since the collision with each other while hitting the rotary blade 22 in the middle, fine dust such as soil or cement powder mixed or buried in the aggregate is effectively desorbed, such debris is removed from the air inlet (top) of the upper tube 21 ( A path through which the air flow introduced from the air 24 exits the air outlet 42 of the cover member 41 via the suction and discharge space 40 through the numerous communication holes 25 formed in the outer circumferential wall of the tubular body 21. It is discharged along the dust collecting treatment in a separate dust collecting facility not shown.

On the other hand, the fine dust is detached and cleanly cleaned aggregates are collected through the lower aggregate outlet 12 of the cylindrical cylinder (10).

In the present invention, the air inlet 24 and the air outlet 42 may be installed together in the cover member 41 forming the intake and exhaust space 40 as shown in FIG.

This means that the inlet and outlet positions of the air or the number of locations in the present invention can be changed in various forms as long as it passes through the intake and exhaust space (40).

As described above, in the present invention, most large foreign matters, such as sand, which is fine aggregate crushed to a particle diameter of 10 mm or less by the sand mill, which is the final crushing step in the processing of waste concrete, are removed in the pretreatment process, and only fine particles such as soil or cement powder Provides an effective device for cleaning aggregates containing sex dust.

That is, the present invention has the advantage of more effectively desorbing the fine dust mixed by stirring the sand introduced into the cylindrical cylinder with a rotary blade.

In addition, the present invention is to remove the fine dust in the cylindrical cylinder which is a closed space by the force of the wind, there is an advantage that can minimize the scattering of dust to keep the environment of the workplace more clean.

In addition, the present invention has the advantage of providing an environment-friendly and useful device because there is no environmental pollution problem, such as the generation of sludge by the washing water, because the aggregate is washed only with air, not water.

Claims (4)

In recycling waste concrete, which is construction waste, with fine aggregate, An aggregate inlet is provided at the upper end of the cylindrical cylinder, and an aggregate discharge outlet is respectively provided at the lower end, and a plurality of rotary blades are housed on the shaft alternately in the longitudinal direction, and a plurality of communication holes are provided on the outer circumferential surface of the cylindrical cylinder. Cylindrical air cleaning device for regenerated fine aggregate, characterized in that the cover member is formed by installing a communication member is formed. The cylindrical air cleaning device for regenerated aggregate according to claim 1, wherein the shaft is formed of a tubular body having a plurality of communication holes. delete delete