KR20140055836A - A method and apparatus for selection and crushing/ fine crush ofwastes construction - Google Patents

Abstract

The present invention relates to a device for crushing/grinding and selecting wastes which prevents scattering of fine dust scattered during transportation of crushed/ground materials thereby preventing surrounding environment pollution in advance and a method thereof. The technical configuration is characterized by comprising a primary crushing machine; a soil transporting conveyor; a secondary crushing machine; a first grinding machine installed to grind crushed materials in a certain size; a secondary magnetic separator; a multi-layer screen separator installed at the rear end of the ground substance transporting conveyor and sorting ground materials by multi-layer; a first, second, and third conveyor; a secondary grinding machine installed by being connected to the rear end of the third conveyor; and a ground material transporting conveyor.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a method and apparatus for waste / crushing / fine crushing of wastes,

The present invention relates to a process for the separation of wastes such as waste concrete, waste ascon, construction waste, construction waste, mixed waste and the like through primary and secondary crushers and primary and secondary crushers and screen separators, The present invention relates to a wave breaking / crushing and sorting apparatus and method for easily and easily performing wave / crushing and sorting work, and more specifically, to a waste concrete / And mixed wastes can be easily discharged through a primary crusher and a screen separator to a soil crusher having a diameter of 10 mm or less. The crushed crushed primary crusher can be continuously and easily handled through a secondary crusher and a primary crusher, The multi-stage screen separator can be easily crushed and pulverized, and the soil particles having various sizes such as a diameter of 20 mm or less and a diameter of 20 to 25 mm, And a second conveyor. In addition, the relatively large-diameter soil particles passing through the multi-stage screen can be selectively transported to the secondary and primary pulverizers so that they can be re-pulverized and recycled, A sprinkler, such as a sprinkler, is installed in the first and second shredders, the first and second shredders, and the screen discriminator to prevent scattering of dust generated during wave / crushing and sorting. The shredder and crusher Each conveyor to be addressed is provided with a lid to prevent scattering of fine dust scattered during the conveyance of the crushed / pulverized product to prevent occurrence of pollution in the surrounding environment, By the simple structure of the wave / crushing and sorting machine composed of the sorting device, it is easy to install while improving the wastage wave / crushing and sorting efficiency Wave / crushing and sorting apparatus of the waste to the present invention relates to a method thereof.

Generally known construction wastes are caused by aging and re-construction of civil engineering and buildings, deterioration of buildings, etc., and construction waste generated when dismantling a building structure contains foreign matter such as concrete lumps in reinforcing bars and natural soil In this case, the construction waste is generally made of an inorganic material and is harmless to the human body, so that it can be recycled.

However, the above-mentioned construction waste is mostly used for the formation of foundation ground such as clay, soil, and landfill.

On the other hand, in recent years, Korean Patent Registration No. 10-0506369 discloses a wave / crushing and sorting apparatus for construction waste which can sort aggregates having various particle sizes by a single process.

That is, according to the wave / crushing and screening apparatus for the construction waste, a hopper for inputting construction waste, a primary crushing section for installing a jaw crusher, a screen and a cone crusher on a continuous process line are installed, After the crushed building waste is passed through the screen, only the construction waste having a certain size or more is secondly crushed through the second crushing section to recover the fine powder through the conveyor, and the aggregates having various particle sizes are selected by one process.

However, in the case of the above-mentioned wave / crushing and sorting apparatus for construction waste, since the construction waste is crushed and crushed through merely primary and secondary crushing parts, and only aggregate fine particles having a predetermined particle size or less are collected, It is impossible to separately discharge the aggregate of the construction waste having the granularity, and it is also possible to separate and discharge the aggregate of the construction waste having the granularity, as well as the fine particles such as dust generated in the crushing, crushing and sorting of the construction waste, as well as transporting the crushed and crushed soil through the conveyor Dust and the like generated are scattered around the worksite, which greatly deteriorates the surrounding environment of the workplace.

In addition, since the crusher for crushing the construction waste includes a jaw crusher, a screen, and a cone crusher, the crusher has a complicated structure, which makes it difficult to manufacture and install the crusher.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a waste incinerator for waste concrete, waste ascon, construction waste, construction waste, mixed waste, The crushed primary crusher can be easily and easily crushed and pulverized continuously through a secondary crusher and a primary crusher to form a multi-stage screen separator to have a diameter of 20 mm or less and a diameter of 20 To 25 mm, and the like can be selectively transported and discharged through the first and second conveyors, respectively, as well as the soot having a relatively large diameter passing through the multi-stage screen can be discharged through the secondary pulverizer and the primary And is selectively transported to a crusher so that it can be re-crushed and recycled. And a sprinkler such as a sprinkler is installed to prevent scattering of dust and the like generated during wave / crushing and sorting, and a cover is provided on each of the conveyors connected to the crusher and the crusher, The present invention is to provide a wave / crushing and sorting method of waste which can prevent scattering of fine dust scattered at the time of occurrence of environmental pollution in advance.

Further, the present invention can improve the waste / crushing and sorting efficiency even more by the simple structure of the wave / crushing and sorting machine composed of the above-mentioned first and second crushers, the first and second crushers, and the screen separator, It is an object of the present invention to provide a wave / crushing and sorting apparatus for waste which can be easily carried out.

Technical Solution In order to accomplish the above object, the present invention provides a wave breaking / grinding and sorting apparatus for waste,

A primary crusher installed coaxially below the hopper into which the waste is introduced;

A primary magnetic separator arranged to convey a conveyor to one side of the primary crusher and installed at the upper side of the center of the conveyor to recover a reinforcing bar and the like;

A soil conveyor for conveying the soil, the soil conveyor being provided at a rear end of the conveyor and provided with a screen sorter for conveying soil particles of a predetermined size or less in a horizontal direction of the screen sorter to be discharged;

A secondary crusher connected to the screening unit through a conveyor in a direction perpendicular to the screening unit;

A primary crusher installed on one side of the secondary crusher to crush the crushed material to a predetermined size via a crush conveyor conveyed to the secondary crushed crushed material;

A secondary magnetic separator installed on one side of the primary crusher for conveying the crushed material and installed on the upper side of the predetermined portion of the crushed material conveyor for recovering reinforcing bars in the crushed material;

A multistage screen sorter installed at a rear end of the pulverized water conveying conveyor and installed to select pulverized material in multiple stages;

A first, a second, and a third conveyors respectively disposed in the multi-stage screen discriminator and arranged to discharge aggregate materials having different diameters selected from the multi-stage screen discriminator;

A second mill connected to the rear end of the third conveyor;

And a pulverized water conveying conveyor conveyed to the one side of the secondary pulverizer so that the re-pulverized pulverized material is communicated with the pulverized water conveying conveyer on which the secondary magnetic separator is installed. And a sorting device.

The multi-stage screen sorter according to the present invention is characterized in that a fourth conveyor is provided so as to selectively communicate with the primary crusher so that the aggregate having a relatively large particle size is crushed again.

In the present invention, aggregates having a diameter of 20 mm or less selected by the multi-stage screen sorter are conveyed and discharged as a first conveyor in the first, second, and third conveyors respectively provided in the multi-stage screen sorter, And a third conveyor for conveying an aggregate having a diameter of 25 mm or more is provided on one side of the second conveyor. The second conveyor is disposed in the horizontal direction to convey the aggregate having a diameter of 20 to 25 mm, do.

Further, the present invention is characterized in that a lid for preventing scattering of dust is formed on the upper side of the first to fourth conveyors, which are connected to the primary and secondary crushers, the primary and secondary crushers, the screen discriminator and the multi- .

In addition, the first to fourth conveyors, which are connected to the primary and secondary crushers, the primary and secondary crushers, and the multi-stage screen separator, are formed of a bucket conveyer.

The present invention is characterized in that the soil conveying conveyor provided in the horizontal direction of the screen separator conveys and discharges soil particles having a size of 10 mm or less in diameter through the screen separator.

Further, the present invention is characterized in that a wind power sorter is positioned at an inlet side end of the secondary crusher.

The primary pulverizer is characterized by pulverizing the pulverized product to a size of 25 mm or less.

In addition, the first and second crushers, the first and second crushers, and the screen separator are each provided with sprinklers for preventing scattering of dust generated during wave / crushing and screening.

In addition, the present invention relates to a method for wave / crushing and sorting wastes,

The waste is put into the primary crusher coaxially to the lower side of the hopper through the hopper to perform a crushing operation;

Separating the crushed primary particles through a conveyor connected to one side of the primary crusher to a screening machine for screening the crushed primary particles to sort soil particles having a diameter of 10 mm or less;

A primary magnetic force separator is installed on a central portion of a conveyor to which the crushed material is conveyed to easily recover the rebar or the like in the crushed material conveyed through the conveyor by magnetic force;

The soil particles having a diameter of 10 mm or less, which are selectively discharged from the screen sorting machine, are transported through a soil conveying conveyor installed horizontally to the screen discriminator and discharged to a loading station;

A conveyor is provided in a direction perpendicular to the screening unit so that the crushed material having a diameter of 10 mm or more selected from the screening unit flows into the secondary crusher through the conveyor to cause crushed secondary crushing of the selected crushed material;

A wind power sorter is disposed at an inlet side end of the secondary crusher to remove foreign matter such as vinyl or the like, which has been transferred through the conveyor together with the crushed material, by wind force;

A step of conveying a second pulverized pulverized material to a first pulverizer to grind a diameter of the pulverized material to a size of 25 mm or less;

Allowing the pulverized material to be conveyed to the multi-stage screen sorter through a conveyor for conveying the pulverized material to one side of the primary pulverizer;

A second magnetic force separator provided on a predetermined portion of the pulverized water conveying conveyor to recover the reinforcing bars in the pulverized pulverized and delivered through the first pulverizer;

The pulverized material introduced into the multi-stage screen sorter is divided into aggregate having a diameter of 20 mm or less, aggregate having a diameter of 20 to 25 mm and aggregate having a diameter of 25 mm or more;

An aggregate having a diameter of 20 mm or less is conveyed through a first conveyor provided to the multi-stage screen sorter and aggregate materials having a diameter of 20 to 25 mm are conveyed through a second conveyor belt which is horizontally fed to the multi- Discharging the loading dock;

Placing a third conveyor on one side of the second conveyor belt to transfer aggregates having a diameter of 25 mm or more to a second crusher; And

Wherein the aggregate to be pulverized through the secondary pulverizer is introduced into the pulverized material conveying conveyor through which the secondary magnetic force sorter is installed through the pulverized material conveying conveyor and is conveyed again to the multi-stage screen sorter. Wave / crushing and screening methods.

The multi-stage screen sorter according to the present invention is characterized in that the fourth conveyor is located such that aggregate having a relatively large particle diameter is introduced into the primary pulverizer through the fourth conveyor and then pulverized again.

According to the waste / crushing and screening apparatus and method of waste of the present invention, wastes such as waste concrete, waste asbestos, construction waste, building waste, mixed waste and the like are passed through a primary crusher and screen screening machine, The crushed primary crusher can be easily and easily crushed and pulverized continuously through a secondary crusher and a primary crusher. The crushed crushed material can be passed through a multi-stage screen separator to have a diameter of 20 mm or less and a diameter of 20 to 25 mm It is possible to transport and discharge the soil particles having various sizes through the first and second conveyors, respectively, as well as the soil particles having a relatively large diameter passing through the multi-stage screen can be selectively supplied to the second and first crushers So that it can be re-pulverized and recycled. In the first and second crushers, the first and second crushers, and the screen separator, And a cover is provided on each of the conveyors to be connected to the crusher and the crusher so as to prevent the scattering of the fine dust that is scattered when the wave / By preventing the scattering and preventing the environmental pollution from occurring, and by the simple structure of the wave crushing and screening device composed of the first and second crushers, the first and second crushers, and the screen separator, There is an excellent effect that the installation efficiency can be improved while improving the sorting efficiency.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled 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 following claims It will be understood by those skilled in the art that it is readily known.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic block diagram of a wave / crushing and sorting apparatus for waste according to the present invention; FIG.
Fig. 2 is a planar view of the first and second mills of the waste / crushing and sorting apparatus of the present invention. Fig.
3 is a flow chart for wave / crushing and screening of waste according to the present invention.

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

FIG. 1 is a schematic structural view of a waste wave crushing and sorting apparatus according to the present invention. FIG. 2 is a plan structural view of the first and second crushers of the wave crushing and sorting apparatus of the present invention. A primary crusher 10 is installed on the lower side of the hopper and a conveyor 20 is disposed on one side of the primary crusher 10 and a reinforcing bar A screen discriminator 40 for sorting crumbs of the primary crusher 10 is installed at the rear end of the conveyor 20. The screen crusher 40 is disposed at the rear end of the conveyor 20,

A soil conveying conveyor 50 for conveying and discharging a soil material having a size of 10 mm or less in diameter in the horizontal direction of the screen separator 40 is disposed in the screen separator 40. A conveyor 60 A second crusher 70 is connected to the second crusher 70 through the second crusher 70 and the second crusher 70 is connected to the second crusher 70, A wind power separator 80 for removing foreign substances such as vinyl, etc., which are fed together, is positioned by a wind force. On one side of the secondary crusher 70, a crushed material conveying conveyor 90 for conveying secondary crushed crushed material is disposed A primary pulverizer 100 is installed to pulverize the transferred pulverized material to a size of 25 mm or less.

A conveyor 110 for conveying the pulverized material is provided at one side of the primary pulverizer 100. At this time, a secondary magnetic separator for recovering the ferrous material in the pulverized material is disposed on a predetermined portion of the pulverized material conveyor 110, And a multi-stage screen separator 130 is provided at the rear end of the pulverized water conveyor 110 for screening the pulverized pulverized material in multiple stages.

The multi-stage screen separator 130 includes a first conveyor 140a for conveying an aggregate having a diameter of 20 mm or less and a second conveyor 140a for conveying an aggregate having a size of 20 to 25 mm in a horizontal direction of the multi- A second conveyor 140b for conveying an aggregate material having a diameter of 25 mm or more is provided on one side of the second conveyor belt 140b and the third conveyor 140c is conveyed to the multi- 3 conveyor 140c is provided at the rear end thereof with a secondary pulverizer 150 for pulverizing aggregate having a diameter of 25 mm or more and a pulverized water conveying conveyor 160 is disposed at one side of the secondary pulverizer 150, And is conveyed to the pulverized material conveying conveyor 110 where the secondary magnetic separator 120 is installed.

The fourth conveyor 140d is disposed in the multi-stage screen sorter 130 so as to selectively communicate with the primary crusher 100 to crush the aggregate having a relatively large particle size.

On the other hand, on the upper side of each of the conveyors which are respectively provided to the primary and secondary crushers 10, 70, primary and secondary crushers 100, 150 and the multi-stage screen separator 130, The conveyor is formed of a bucket conveyer for smooth conveyance of the crushed material and the pulverized material, while the first and second crushers 10, 70 and 1,2, The sprayer 100 and the screen separators 40 and 130 are provided with sprayers K for preventing scattering of dust generated during wave / crushing and screening.

The wave / crushing and screening of the waste of the present invention having such a structure will be described in detail as follows.

FIG. 3 is a flow chart for the wave / crushing and sorting of waste according to the present invention, wherein waste such as waste concrete, waste asbestos, construction waste, construction waste, mixed waste and the like is discharged through a hopper (not shown) A crushing operation is carried out in the primary crusher 10 on the lower side of the primary crusher 10 and a conveyor 20 connected to one side of the primary crusher 10, (40).

At this time, a primary magnetic force sorter 30 is provided on the upper side of the central portion of the conveyor 20 on which the crushed material is conveyed, so that the rebar or the like in the crushed material conveyed through the conveyor 20 can be easily recovered by the magnetic force The crushed material collected by the rebar or the like is transferred to the screen discriminating device 40 to select a soil material having a diameter of 10 mm or less. The soil material having a diameter of 10 mm or less, which is discharged from the screen discriminating device 40, Through the soil conveying conveyor 50 installed in the horizontal direction and discharged to the loading station.

A conveyor 60 is disposed in a direction perpendicular to the screen screener 40 so that the crushed material having a diameter of 10 mm or more selected from the screen screener 40 is introduced into the secondary crusher 70 through the conveyor 60 And a second crusher 70 for crushing crushed crushed secondary material through the second crusher 70. At this time, a wind power sorter 80 is located at an inlet side end of the secondary crusher 70, The foreign matter such as vinyl or the like, which has been transported through the windshield 60, is removed by wind.

The pulverized material conveying conveyor 90 for conveying the second pulverized pulverized material is sent to one side of the secondary pulverizer 70 to transfer the second pulverized pulverized material to the first pulverizer 100, The pulverized material to be pulverized in the primary pulverizer 100 is pulverized to a size of 25 mm or less in diameter and the pulverized material transfer conveyor 110 is provided on one side of the primary pulverizer 100, Stage screen sorter 130 through a conveyor for conveying the pulverized material 110. At this time, a secondary magnetic force separator 120 is installed on a predetermined portion of the pulverized material conveyor 110, It is possible to easily recover the reinforcing bars in the pulverized material which is pulverized and conveyed through the pulverizer 100.

The multi-stage screen separator 130 for introducing the pulverized material through the pulverized material conveying conveyor 110 into the multi-stage screen sorter 130 is used to collect aggregates having a diameter of 20 mm or less, aggregates having a diameter of 20 to 25 mm, Stage aggregate having a diameter of 20 mm or less is conveyed through a first conveyor 140a provided to the multi-stage screen separator 130 and the aggregate conveyed in a horizontal direction is conveyed to the multi- 2 aggregate having a diameter of 20 to 25 mm is conveyed through the conveyor belt 140b to discharge the unloading station and a third conveyor 140c is disposed on one side of the second conveyor belt 140b, And the aggregate is conveyed to the second crusher 150.

The aggregate to be pulverized through the secondary pulverizer 150 can be introduced into the pulverized material conveying conveyor 110 through which the secondary magnetic force sorter 120 is installed through the pulverized material conveying conveyor 160, The pulverized material flowing into the conveying conveyor 110 flows into the multi-stage screen separator 130 again and performs the multi-stage sorting operation as described above.

On the upper side of each of the conveyors which are respectively connected to the primary and secondary crushers 10 and 70, the primary and secondary crushers 100 and 150, the screen sorter and the multi-stage screen sorter 130, A cover C is provided to prevent scattering of minute dust scattered during transportation of the crushed material and the crushed material so that occurrence of pollution in the surrounding environment can be prevented in advance. In this case, each conveyor is a bucket conveyer, So that the crushed material and the crushed material can be smoothly transported.

The sprinklers K and K are installed in the first and second crushers 10 and 70 and the first and second crushers 100 and 150 and the screen discriminators 40 and 130, And scattering of dust generated during sorting, thereby preventing contamination of the surrounding environment.

On the other hand, a fourth conveyor 140d is disposed in the multi-stage screen separator 130 to selectively communicate with the primary crusher 100, and the aggregate having a relatively large particle size is conveyed to the fourth conveyor 140d And then may be pulverized again after being introduced into the primary pulverizer 100.

10 ... primary crusher 20 ... conveyor
30 ... primary magnetic separator 40 ... screen discriminator
50 ... Conveyor for soil conveyance 60 ... Conveyor
70 ... 2nd crusher 80 ... Wind-powered sorter
90 ... crush conveyor conveyor 100 ... primary crusher
110 ... Conveyor for conveying pulverized water 120 ... Secondary magnetic separator
130 ... multi-stage screen sorter
140a to 140d ... first to fourth conveyors
150 ... Secondary crusher 160 ... Crushed water conveying conveyor
C ... Cover K ... Sprinkler

Claims (11)

In the waste / crushing and sorting apparatus for waste,
A primary crusher installed coaxially below the hopper into which the waste is introduced;
A primary magnetic separator arranged to convey a conveyor to one side of the primary crusher and installed at the upper side of the center of the conveyor to recover a reinforcing bar and the like;
A soil conveyor for conveying the soil, the soil conveyor being provided at a rear end of the conveyor and provided with a screen sorter for conveying soil particles of a predetermined size or less in a horizontal direction of the screen sorter to be discharged;
A secondary crusher connected to the screening unit through a conveyor in a direction perpendicular to the screening unit;
A primary crusher installed on one side of the secondary crusher to crush the crushed material to a predetermined size via a crush conveyor conveyed to the secondary crushed crushed material;
A secondary magnetic separator installed on one side of the primary crusher for conveying the crushed material and installed on the upper side of the predetermined portion of the crushed material conveyor for recovering reinforcing bars in the crushed material;
A multistage screen sorter installed at a rear end of the pulverized water conveying conveyor and installed to select pulverized material in multiple stages;
A first, a second, and a third conveyors respectively disposed in the multi-stage screen discriminator and arranged to discharge aggregate materials having different diameters selected from the multi-stage screen discriminator;
A second mill connected to the rear end of the third conveyor;
And a pulverized water conveying conveyor conveyed to the one side of the secondary pulverizer so that the re-pulverized pulverized material is communicated with the pulverized water conveying conveyer on which the secondary magnetic separator is installed. And a sorting device.
The multi-stage screen sorter according to claim 1, wherein the multi-stage screen sorter is provided with a fourth conveyor to selectively communicate with the primary pulverizer so that the aggregate having a relatively large particle size is ground again. .
The multi-stage screen sorter according to claim 1, wherein the first, second, and third conveyors respectively provided in the multi-stage screen sorter are conveyed and discharged as a first conveyor, the aggregates having a diameter of 20 mm or less, And a third conveyor for conveying an aggregate material having a diameter of 25 mm or more on the side of the second conveyor is disposed on the side of the second conveyor Characterized by a wave breaking / grinding and sorting device.
2. The apparatus according to claim 1, wherein a cover for preventing scattering of dust is installed on the upper side of the first to fourth conveyors, which are connected to the primary and secondary crushers, the primary and secondary crushers, the screen discriminator and the multi- Characterized by a wave breaking / grinding and sorting device.
The method according to claim 1 or 4, characterized in that the first to fourth conveyors, which are connected to the primary and secondary crushers, the primary and secondary crushers, and the multi-stage screen separator, are made of a bucket conveyer Of the waste / crushing and sorting device.
The method according to claim 1, wherein the soil conveying conveyor in the horizontal direction of the screen sorter is configured to convey and discharge soil particles having a size of 10 mm or less in diameter through the screen separator. Sorting device.
The wave breaking / grinding and sorting apparatus according to claim 1, wherein a wind force sorter is disposed at an inlet side end of the secondary crusher.
The apparatus of claim 1, wherein the primary pulverizer pulverizes the pulverized material to a size of 25 mm or less.
The method of claim 1, wherein the first and second crushers, the first and second crushers, and the screen separator are provided with sprinklers for preventing scattering of dust generated during wave / crushing and sorting, respectively. And a sorting device.
In the wave / crushing and sorting method of waste,
The waste is put into the primary crusher coaxially to the lower side of the hopper through the hopper to perform a crushing operation;
Separating the crushed primary particles through a conveyor connected to one side of the primary crusher to a screening machine for screening the crushed primary particles to sort soil particles having a diameter of 10 mm or less;
A primary magnetic force separator is installed on a central portion of a conveyor to which the crushed material is conveyed to easily recover the rebar or the like in the crushed material conveyed through the conveyor by magnetic force;
The soil particles having a diameter of 10 mm or less, which are selectively discharged from the screen sorting machine, are transported through a soil conveying conveyor installed horizontally to the screen discriminator and discharged to a loading station;
A conveyor is provided in a direction perpendicular to the screening unit so that the crushed material having a diameter of 10 mm or more selected from the screening unit flows into the secondary crusher through the conveyor to cause crushed secondary crushing of the selected crushed material;
A wind power sorter is disposed at an inlet side end of the secondary crusher to remove foreign matter such as vinyl or the like, which has been transferred through the conveyor together with the crushed material, by wind force;
A step of conveying a second pulverized pulverized material to a first pulverizer to grind a diameter of the pulverized material to a size of 25 mm or less;
Allowing the pulverized material to be conveyed to the multi-stage screen sorter through a conveyor for conveying the pulverized material to one side of the primary pulverizer;
A second magnetic force separator provided on a predetermined portion of the pulverized water conveying conveyor to recover the reinforcing bars in the pulverized pulverized and delivered through the first pulverizer;
The pulverized material introduced into the multi-stage screen sorter is divided into aggregate having a diameter of 20 mm or less, aggregate having a diameter of 20 to 25 mm and aggregate having a diameter of 25 mm or more;
An aggregate having a diameter of 20 mm or less is conveyed through a first conveyor provided to the multi-stage screen sorter and aggregate materials having a diameter of 20 to 25 mm are conveyed through a second conveyor belt which is horizontally fed to the multi- Discharging the loading dock;
Placing a third conveyor on one side of the second conveyor belt to transfer aggregates having a diameter of 25 mm or more to a second crusher; And
Wherein the aggregate to be pulverized through the secondary pulverizer is introduced into the pulverized material conveying conveyor through which the secondary magnetic force sorter is installed through the pulverized material conveying conveyor and is conveyed again to the multi-stage screen sorter. Wave / crushing and sorting methods.
The multi-stage screen sorter as claimed in claim 10, wherein the multi-stage screen sorter is provided with a fourth conveyor such that aggregate having a relatively large particle diameter is introduced into the primary pulverizer through the fourth conveyor and then pulverized again. And sorting methods.

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