KR100719459B1 - Dust seperating apparatus and it's method using closed vibration screen - Google Patents

Abstract

The present invention relates to a system for the production and processing of recycled aggregates using construction waste for sorting recycled aggregate from construction waste and, more particularly, to a system and method for efficiently separating impurities contained in recyclable aggregate in construction waste, And more particularly, to an apparatus for sorting and separating construction waste.

The present invention relates to a recycled aggregate production system that can be applied to both wet and dry facilities for screening and separating recycled aggregate and impurities from construction waste by crushing construction waste. In the recycled aggregate production system, a vibration screen, Blowing air from the bottom side of the screen with a blower to scatter foreign matter (soil, vinyl, styrofoam, fiber, etc.) with a small specific gravity and connecting the exhaust duct to the upper part of the vibration screen and effectively removing the foreign matter by using suction force by the fan And separating the buried collecting material and the combustible collecting material into separate storage tanks by controlling the wind pressure.

Recycled aggregate, enclosed vibration screen, buried dust collector, flammable dust collector

Description

TECHNICAL FIELD [0001] The present invention relates to a method of separating foreign objects using a closed vibration screen,

1 is a production process diagram for obtaining a conventional recycled aggregate;

Fig. 2 is an exemplary view for separating a conventional foreign matter; Fig.

Fig. 3 is a process flow chart for separating contaminants of the present invention; Fig.

4a: an exploded perspective view of the enclosed vibration screen of the present invention;

Figure 4b: Internal front view of the enclosed vibratory screen of the present invention

Description of reference numerals used in drawings

100: Vibrating screen 110: Square body case

120: inlet hopper 130: outlet

140: Ventilating inlet piping 141: Air volume regulating valve

150: Screen 160: Vibrating device

161: Vibration-induced eccentric shaft 162: Crankshaft

163: Chain type time belt 170: Coil spring

180: exhaust duct connection part 190: body top plate

200: support frame 210: drive motor

220: heat blower 230: exhaust duct

240: Dry Cyclone 250: Landfill dust collector

260: combustible dust collecting article 270: bag filter

280: Aerator 290: Year (chimney)

The present invention relates to a system for producing and processing recycled aggregate using construction waste for sorting recycled aggregate from construction waste, and more particularly to a system and method for separating impurities contained in recyclable aggregate in aggregate, The present invention relates to an improved separation and separation apparatus for construction waste.

Many structures resulting from the process of urbanization and industrialization, such as bridges, roads and

Various buildings are gradually getting old as time goes by, especially recently

Reconstruction and redevelopment are actively promoted in many areas to improve housing culture.

Is a reality.

In the process of demolition, reconstruction and redevelopment of these old structures, many

Construction waste is generated. If such construction waste is to be landfilled,

Not only is it difficult to secure, but it also costs a lot of landfill and it has a huge impact on the environment.

Rehabilitation of construction waste in two aspects: protection of the natural environment and recycling of resources

There have been various countermeasures for the disposal of construction waste.

A variety of processing devices have been developed.

Construction wastes include waste wood, waste plastics such as hydrofoil, and reinforcing bars.

Is a mixed fire that includes metals, waste paper, and pulp fibers used as a cement strengthening agent.

The construction waste, which contains a variety of impurities,

It is separated into incineration and regeneration through processing. In recent years,

Separate and regenerate aggregates from construction waste to supplement scarce aggregate resources

It is highly interested in recycling as recycled aggregate.

TECHNICAL FIELD The present invention relates to a recycling aggregate sorting system and a separating apparatus for efficiently separating impurities such as waste vinyl, styrofoam, waste paper, pulp fibers, and the like, which are foreign materials other than aggregates, .

A treatment plant for the production of recycled aggregate of construction waste used from the past

As a value, there are disclosed a large number of Registration Practical Utility Modules 20-0264696 and 10-05-18077.

Conventionally, as a method for obtaining recycled aggregate from construction waste, the wet-laid aggregate production system has a problem of the wastewater treatment that is generated. In the dry-laid aggregate production system, there is a problem of a dust collection facility for treating dust generated, It is a reality of today that has not got satisfactory recycled aggregate approaching.

In the wet or dry recycled aggregate production facility for obtaining most recycled aggregate, in the course of conveying by the conveyor, the construction waste material is usually shredded by the jaw crusher, and the metal material such as reinforcing steel is passed through the magnetic separator And separating some of the gravel and foreign substances by a vibration screen, and then separating some of the light garbage by a blower in a process of falling into the hopper and dropping it directly from the conveyor belt. 2, the water is conveyed through the conveyor belt at the upper part of the water collecting tank where the water is drained, and at the point where the falling down of the construction waste falls, the conveying belt is driven by the motor adjacent to the lower end of the conveying conveyor. The wind blown from the blower being blown The end portion of the blast duct is positioned so that the waste concrete can be concentratedly blown over the falling portion of the waste concrete, and the low specific gravity impurities (waste vinyl, styrofoam, waste Fiber, etc.), and a suction duct for guiding ducts for discharging the water to the outside, and a system having a discharge mechanism for discharging the washed aggregate in the water collecting tank.

However, in the conventional air blowing apparatus constructed as described above, when the wind strength is weakened, only a small amount of waste is blown away, and waste materials such as waste wood or waste paper having a rather large size can not be properly separated, Relatively large waste materials such as waste wood or waste synthetic resin can be easily selected, but at the same time, reusable fine aggregates fly together, which not only makes the meaning of recycling meaningless, but also has a problem of adversely affecting work environments such as scattering of dust come.

In addition, even if various processes such as wet and dry processes are performed, complete separation between the aggregate and the foreign material is not performed, and remaining remnant remains as a main factor that deteriorates the quality of the recycled aggregate.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems,

Among the recycled aggregate production facilities that can be applied in both wet and dry facilities in order to sort and separate the recycled aggregate and impurities by crushing sludge, the vibratory screen is closed when the screen process is performed after the aggregate crushing process , The enclosed vibrating screen blows air from the side of the bottom of the screen and blows off light foreign matter, and the upper part of the closed type vibration screen is connected with the exhaust duct to give suction force by the fan, , Vinyl, styrofoam, fiber, and the like, and it is an object of the present invention to provide a recycled aggregate of good quality by effectively removing foreign matter such as fibers, styrofoam, and fibers. The foreign matter sucked through the exhaust duct in the upper part is burnt, It is necessary to separate foreign substances such as vinyl, styrofoam, Separated in a small house having gangrene is a technical problem who want to reduce the process cost due to then zoom.

That is, a specific object of the present invention is to provide a method and apparatus for sorting and separating recycled aggregates and impurities efficiently by selecting and separating them, thereby reducing the production cost of recycled aggregates.

As shown in the production process diagram shown in FIG. 1, the conventional art used for recycling aggregates and other by-products from civil engineering and construction waste generally includes a construction waste 10 collected from an existing building, (1), and after the primary sorting step (S1) by hand or the like, foreign materials such as wood and vinyl are removed and then subjected to a primary crushing step (S2) by a crusher such as a jog crusher After the generated soil particles 5 are separated, the remaining building waste 10 is transported through the belt conveyor 2 (3, 4) by the magnetic separator 6 in the primary magnetic force sorting step S3, ) Are separated and moved.

After the step of removing the foreign substances such as waste, vinyl and the like through the secondary screening step (S4) by manual operation or the like, and transferred to the primary screen step (S5), the stone screen (9) And the foreign matter is removed through a tertiary sorting step S6 by the naked eye and then the crushed building waste 10 through the secondary crushing step S7 is subjected to a secondary magnetic force sorting process such as a magnet The metal material 7 such as a rebar nail which has remained in the secondary magnetic force sorting step S3 is separated through the vibration screen 8 made of a lattice net in the secondary screen process S9, 10a, fine aggregate 10b and coarse aggregate 10c to obtain recycled aggregate.

The soil-mixed aggregate obtained in the crushing step (S2) in the above-mentioned process is mixed with foreign substances such as vinyl, styrofoam and fibers, and thus it is difficult to use it as a recycled aggregate. A wet type classifier such as Fig. .

2 is a schematic view of the structure of the wet type classifier shown in FIG. 2, in which a portion where the construction waste 10 falls from the upper part of the water collecting tank 20 in which the water has been taken out through the conveyor belt 12 is provided at the lower part of the end of the conveying conveyor belt 12 The end portion 16 of the air blast duct 15 is located so as to be able to concentrically blow air to the portion where the waste concrete crushed by the air blown from the blower 14 driven by the motor 13 is driven by the motor 13, The suction portion 17 of the guide duct 18 for collecting the low specific gravity impurities in the crushed construction waste 10 falling on the water collecting tank 20 by the wind force on the opposite side of the portion 16 is separately installed And a discharging mechanism 19 for discharging the washed aggregate in the water collecting tank 20, as shown in FIG.

The prior art has some advantages in that impurities contained in various types of construction wastes can be separated and aggregate can be effectively produced by pure waste concrete. However, in the process of removing impurities, There is a problem such as secondary environmental pollution accompanied by a subsequent treatment process such as a water treatment problem. Actually, the efficiency of separating floating impurities from the inside of the water collecting tank is lower than expected, And stones are not separately recovered or recycled, but they are incinerated or attempted to be burnt as they are mixed with soil, stones, vinyl, styrofoam, and fibers. In case of incineration, the non- Incineration with mixed vinyl, styrofoam and fibers In the case of key, incineration cost (the cost of incineration of aggregate foreign material is 180,000 won per ton) is low, but incineration efficiency is lowered. If foreign matter is to be buried, there is no relation between soil and stone, , Styrofoam, fibers and the like, so as to contaminate the soil.

In order to solve the above problems, the technical idea of the present invention is disclosed as a closed type vibration screen type of FIG. 3. As shown in FIG. 3, the vibration screen 100 receives recycled aggregate discharged from a pretreatment facility from an inflow hopper The vibrating screen 100 separates the vibrating screen 100 by the size of the vibrating screen and extracts and selects a desired size of aggregate through the discharge ports 131 and 132. The vibrating screen 100 shown in FIG. And a top plate 190 having an inlet hopper 120 and an exhaust duct connecting portion 180 at an upper portion of the upper plate 190. The top plate 190 has an upper portion and a lower portion, A screen 150 which forms a rectangular body case 110 and is inclined at a predetermined angle in the body case 110 and extracts only recycled aggregate of, for example, 5 mm or less, 10 mm or less, 19 mm or less, ; A vibration inducing device 160 for inducing vibration to generate vibration in the upper and lower portions of the body case 110 and the screen 150; A coil spring 170 installed at a predetermined position of the rectangular body case 110 such that the vibration intensity of the rectangular body case 110 and the screen 150 increases when the vibration inducing device 160 vibrates; And the like are seated on the support frame 200. In the example shown in Fig.

4 is an exploded perspective view showing the internal components of the vibration screen 100. FIG. 5 shows an internal front view of the screen 100 in a state in which the screen is taken in FIG. The vibration inducing device 160 that causes the case 110 and the screen 150 to vibrate is connected to the driving motor 210 and the motor 210 so that the load is moved by the amount of eccentricity during rotation, A first eccentric shaft 161; And a second eccentric shaft 161a horizontally spaced from the first eccentric shaft 161; And a chain type time belt 163 connecting the first crank shaft 162 and the second crank shaft 162a.

In addition, when the recycled aggregate to be filtered through the screen (150, 150a) is provided at the lower end of the vibration screen (100), the air is blown by the blower to scatter the foreign matter in the aggregate. The hot air 220 is supplied to the air blowing facility to blow hot hot air to dry the aggregate, and the foreign matter such as soil, stone, vinyl, and styrofoam mixed in the aggregate flowing through the screen 150 The vibrating screen 100 is connected to the upper part of the vibration screen 230 through the connection part 180 and is separated from the fine aggregate by combining with the suction force sucked by the exhaust duct 230, And the foreign substances sucked through the exhaust duct 230 are controlled by the wind pressure so that the unburned soil and the dust are separated into dry cyclone 24 0) is used to separate the foreign substances such as vinyl, styrofoam, and fibers, which are combustible, into dust and flour dust collecting material 250, and the dust and dirt particles 260 are separated into combustible dusts 260, The exhaust fan 280 is connected to one end of the bag filter 270 and a chimney 290 is connected to one end of the exhaust fan 280, And connected to discharge the purified air.

How the wind pressure can be adjusted to apply the system of the present application to classify foreign matter such as dust, flour, dust-collecting dust 250 and flammable vinyl, styrofoam, and fibers into flammable dust collectors 260, It is possible that the applicant's plant will be able to process 150 tonnes of recycled aggregate per hour at a facility with a power of 30 horsepower and a power of 100 horsepower at a power plant, It is possible to separate the dust and flammable dusts from each other, and it is possible to find optimal separation conditions by using several trial and error methods during installation and operation of the technical composition of the present invention.

The present invention has the effect of providing a recycled aggregate production facility that can be used in both wet and dry facilities for sorting and separating recycled aggregate and impurities from the construction waste.

The present invention relates to a vibration screen which is made by a screen process after an aggregate crushing process and which blows air from a side of a bottom of a closed vibration screen by blowing air to disperse a lightweight foreign substance and the upper part of the closed vibration screen is connected with an exhaust duct It is effective to provide a high-quality recycled aggregate by effectively removing foreign matters such as soil, vinyl, styrofoam, and fibers remaining while the mixed aggregate passes through the vibration screen by applying suction force by an air blower.

The foreign matter separated from the enclosed vibration screen of the present invention separates the small dust collecting materials such as combustible vinyl, styrofoam, and fiber separately from the unburnt tobacco and dust through the upper exhaust duct, Can be greatly reduced, and

It is possible to install a carver on a conventional vibration screen and to improve scattering dust generated at the time of shredding, thereby preventing secondary pollution in the workplace and improving working environment of the workplace.

Claims (2)

A method for separating foreign matters in recycled aggregates using a closed type vibration screen, which can be applied to both wet and dry facilities for sorting and separating recycled aggregate and impurities flowing from construction waste, After the aggregate crushing process, the vibration screen for separating the aggregate particle size is provided in a closed form, A top plate 190 having an inlet hopper 120 and an exhaust duct connecting portion 180 is coupled to the upper portion of the enclosure 140 to provide a hermetically closed rectangular case body 110 A screen 150 installed at an angle to the body case 110 and a vibration inducing device 160 for vibrating the body case 110 and the screen 150 to generate vibration, And a coil spring 170 installed at a predetermined position of the rectangular body case 110 such that the vibration intensity of the rectangular body case 110 and the screen 150 increases during the vibration of the vibration inducing device 160 Providing a vibrating screen (100); The vibration screen is blown by the blower 220 at the bottom side of the vibration screen to scatter foreign substances having a small specific gravity. At the upper part of the vibrating screen, foreign matter is separated by using the suction force by the exhaust duct connection part 180 and the air blower 280, Separating the buried dust (soil, stone) and the combustible dust (vinyl, styrofoam, fiber) into separate storage tanks by adjusting the pressure; And the second inclined surface is provided with a closed vibration screen. 1. A recycled aggregate production apparatus for sorting and separating recycled aggregate and impurities flowing into a construction waste, The lower part of the vibration screen 100 is closed and the upper part is connected to the upper plate 190 having the inlet hopper 120 and the exhaust duct connection part 180 at the upper part thereof. A screen 150 which forms a case 110 and is inclined at a predetermined angle in the body case 110 and a vibration generating unit 160 which vibrates the vibration of the body case 110 and the screen 150, And a coil spring installed at a predetermined position of the rectangular body case so as to increase the vibration intensity of the rectangular body case and the screen during vibration of the vibration inducing device, (170). ≪ / RTI >

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