| WO2001062683A1 | 2001-08-30 |
| EP0722778A1 | 1996-07-24 | |||
| KR19990066128A | 1999-08-16 | |||
| JPH1025140A | 1998-01-27 | |||
| KR20020050185A | 2002-06-26 |
Background Art [2] Generally, a construction waste sorting apparatus is used to recycle wasters occurring when various construction buildings are constructed. The construction waste sorting apparatus is capable of separating and sorting wastes into soil and sand, and gravel based on a purpose of use and size and is capable of separating and removing foreign substances such as steel, vinyl, Styrofoam, etc.
[3] In the conventional construction waste sorting system, a Jaw crusher, cone crusher, screen, water collecting container, etc. are connected by a transfer conveyor. In the conventional construction waste sorting system, rough stones are inputted into the jaw crusher and are first ground. The first ground stones are into the corn crusher and are second ground. The ground stones are inputted into the screen having multi-hole net members through the transfer conveyor. The stones are separated and sorted based on the size of particles and are processed through the water process. At this time, soil and sand attached to each stone are washed and separated through the water collecting container, so that the foreign substances mixed in the stones are separated and removed.
[4] The stones are processed through a second grinding step. However, a grinding efficiency is low, so that the sorting accuracy is decreased. In this case, soil and sand are not sorted from the stones and gravel inputted into the water collecting container, so that the soil and sand are not fully separated. When transferring through the transfer conveyor, in a state that water and soil and sand are mixed in stones, they are transferred. Therefore, the sorting accuracy is decreased. In addition, a large amount of foreign substances is contained in the stones and gravels inputted into the water collecting container. They are removed manually. Therefore, it is impossible to fully remove foreign substances, so that the sorting accuracy is decreased.
[5] Therefore, in order to overcome the above problems, a gravity separation part or sand mill are used for thereby enhancing a sorting accuracy. In addition, according to the utility model registration No. 302005, a method for decreasing flying dusts cccu rring during the grinding process is developed. In this case, the capacity ratio is enhanced, and the process is complicated. In addition, the grinding efficiency is decreased because the end mill is used for grinding stones for thereby causing various problems.
Disclosure of Invention Technical Solution [6] Accordingly, it is an object of the present invention to overcome the conventional problems.
[7] It is another object of the present invention to provide a construction waste sorting system and a method of the same implemented by first and second screens formed of first and second jaw crushers, corn crusher and multi-hole net members, a water collecting container formed of a foreign substance preventing guide and a soil and sand sorting part, and a discharge conveyor having a discharge hole on a surface, and a guide chute formed in one side of the same. The present invention is implemented based on a first sorting step, first and second grinding steps, a second sorting step, a third sorting step, a third sorting step, a third grinding step, a water processing step, and a returning step. A recycling efficiency is increased. The capacity ratio of the whole system is minimized.
Description of Drawings [8] The preferred embodiments of the present invention will be described with reference to the accompanying drawings.
[9] Figure 1 is a view illustrating the entire processes according to the present invention; [10] Figure 2 is a view illustrating a state of an entire system according to the present invention; and [11] Figures 3 through 6 are perspective and cross sectional views of a water processing part according to the present invention.
Best Mode [12] The present invention will be described with reference to the accompanying drawings.
[13] Figure 1 is a view illustrating the entire processes according to the present invention, Figure 2 is a view illustrating a state of an entire system according to the present invention, and Figures 3 through 6 are perspective and cross sectional views of a water processing part according to the present invention.
[14] There is provided a conventional construction waste sorting system that includes a first jaw crusher 20 having a jaw 21 in a lower surface of one side of a rough stone input hopper 10, a corn crusher 30 having a corn mantle head 31 and a corn cave ball 32, first and second screens 40 and 40'formed of multi-hole net members 41 and 41'of different sizes, a water collecting container 50 having stone inlet conveyors 4 and 4' and stone discharge conveyors 5 and 5', a foreign substance sorting machine 60 having an air blowing unit 61, and a transfer conveyor. In the present invention, there is provided a construction waste sorting system, comprising a first sorting part 100 in which a certain number of sorting stands 11 are formed at a regular interval on a lower surface of the rough stone input hopper 10; a second sorting part 200 in which a first screen 40 is connected with one side of the rough stone input hopper 10 through the transfer conveyor 3-2, and a transfer conveyor 3-2 is connected with one side of the first screen 40, and a discharge conveyor 3-3 is formed in a lower side of the same; first and second grinding parts 300 in which first and second haw crushers 20 and 20' are connected with the other side of the rough stone input hopper 10 through the transfer conveyors 3-4 and 3-5; a third sorting part 400 in which the transfer conveyor 3-5 of the first and second grinding parts 300 and the transfer conveyor 3-2 of the second sorting part 200 are connected with one side of the second screen 40', and a soil and sand discharge conveyor 3-3 and the inlet conveyor 4 are connected with a lower side of the second screen 40'and the inlet conveyor 4'is provided in one side of the same; a third grinding part 500 in which a corn crusher 30 is connected with one side of the third sorting part 400 through the transfer conveyor 3-6, and the transfer conveyor 3-7 is connected with one side of the corn crusher 30; a water processing part 600 in which the inlet conveyors 4 and 4'of the lower side and one side of the third sorting part 400 are connected with the water collecting container 50, and a soil and sand sorting machine 80 capable of sorting soil and sand through the transfer conveyor 82 having a wiper 81 is provided in the interior of the water collecting container 50, and a foreign substance sorting machine 60 having a foreign substance prevention guide 62, an air blowing fan 61, and a foreign substance discharging conveyor 63 is provided in the upper side; and a stone discharge part 700 in which a stone discharge conveyor 5 is provided in one side of the water processing part 600, and a plurality of soil and sand and water discharge holes 7 are formed on a surface of the discharge conveyors 5 and 5', and a stone discharge part 700 having a soil and sand and water guide chute 6 is formed in a lower side.
[15] In addition, there is provided a conventional waste sorting method that includes a first grinding step for inputting a rough stone waste into a jaw crusher 20 and grinding the same, a second grinding step for inputting the first ground stone into a corn crusher 30 and grinding the same, a sorting step for sorting the second ground stone and separating and transferring, and a water processing step for transferring the sorted ground things to the water collecting container 50 and separating foreign substances and soil and sand. In the present invention, there is provided a construction waste sorting method, comprising a first sorting step S 1 for inputting a rough waste into a rough stone input hopper 10 and sorting a large size rough stone and middle and small size stones and soil and sand; a second grinding step S2'for regrindng the ground things passed through the first grinding step S2, in which the rough stone is ground using a first jaw crusher 20, using a second jaw crusher 20' ; a second sorting step S1' for transferring the stones and soil and sand of middle and small sizes to a first screen 40 having a multi-hole net member 41 through a transfer conveyor 3-1 and discharging the soil and sand through the multi-hole net member 41 and the soil and sand discharge conveyor 3-3 and transferring the small and middle size stones to the transfer conveyor 3-2 and separating and sorting the stone and soil and sand based on their diameters ; a third sorting step S 1'for transferring the small and middle size stone sorted in the second sorting step S 1'and the small and middle size stones ground in the second grinding step S2'to the second screen 40'through the transfer conveyors 3-2 and 3-5 and discharging the soil and sand mixed with the stones through the soil and sand discharge conveyor 3-3 and transferring the small size stone and gravel to the stone inlet conveyors 4 and 4'and transferring the middle size stone to the transfer conveyor 3-6, and sorting based on the diameters of the same; a third grinding step S2'for inputting the middle size stone not passed through the multi-hole net member 41'of the second screen 40'among the third sorted stones, into the corn crusher 30 through the transfer conveyor 3-6, and grinding the same, and re-inputting into the second screen 40'through the transfer conveyor 3-7; a water processing step S3 for inputting the third sorted stones into the water collecting container 50 through the inlet conveyors 4 and 4', and separating the stones and soil and sand and foreign substances through the soil and sand sorting machine 80 and the foreign substance sorting machine 60; and a returning step S4 for inputting the water processed stones into the discharge conveyors 5 and 5'having the discharge hole 7 and discharging a small amount of soil and sand and water mixed in the stones into the water collecting container 50 through the guide chute 6.
[16] The engaging state of the sorting system according to the present invention will be described.
[17] As shown in Figure 2, a sorting stand 11 is formed in a lower surface of a rough stone input hopper 10. A first jaw crusher 20 is engaged to one side. A transfer conveyor 3-1 is engaged to a lower side and is connected with a first screen 40 formed of multi-step multi-hole members 42 and 42'.
[18] A transfer conveyor 3-4 is engaged to one side of the first jaw crusher 20 and is connected with a second jaw crusher 20'. A transfer conveyor 3-5 is engaged to one side of the second jaw crusher 20'. A magnetic force sorting part 90 is engaged on each transfer conveyor 3-1,3-4, and 3-5.
[19] In addition, a soil and sand discharge conveyor 3-3 is engaged to a lower side of the multi-hole net member 42'of the first screen, and a transfer conveyor 3-2 is engaged to one side of the upper multi-hole net member 42 and the lower multi-hole net member 42', respectively.
[20] The transfer conveyors 3-5 and 3-2 engaged to the second jaw crusher 20'and the first screen 40 are connected with the second screen 40'. The second screen 40'is formed of the multi-step multi-hole members 43 and 43'like the first screen 40. The lower multi-hole net member 43'includes a first multi-hole net member 43'-1 having a densely formed net structure, and a second multi-hole net member 43'-2 formed a net structure less dense compared to the first multi-hole net member 43'-1. A soil and sand discharge conveyor 3'-3 is engaged to a lower side of the first multi-hole net member 43'-1 of the second screen 40'. Inlet conveyors 4,4'are engaged to the lower side and one side of the second multi-hole net member 43'-2. A transfer conveyor 3-6 is engage d to one side of the upper multi-hole net member 43 and is connected with the corn crusher 30. The transfer conveyor 3-7 is connected with a lower side of the corn crusher 30 and is reconnected with the transfer conveyor 3-5 connecting the second jaw crusher 20'and the second screen 40'.
[21] In addition, a water collecting container 50 having the discharge conveyors 5 and 5' is formed in one side of the inlet conveyors 4 and 4'. As shown in Figures 3 and 4, a foreign substance discharge conveyor 63 is engaged to one side of the water collecting container 50, and a soil and sand collecting box 83 is engaged to the other side of the same. A soil and sand transfer conveyor 82 having a wiper 81 is engaged in the interior. A foreign substance preventing guide and an air blowing fan 61 are provided in the center portion for preventing the foreign substance from being transferred in the mixed state.
[22] A discharge hole 7 is formed on the surface of the dscharge conveyors 5 and 5'for discharging soil and sand and water. A guide chute 6 is provided in the lower side for returning the soil and sand and water to the water collecting container 50 through the discharge hole 7 for thereby implementing the present invention.
[23] The sorting processes of the construction wastes through the sorting system wording to the present invention will be described.
[24] As shown in Figures 1 and 2, in a first sorting step S 1, rough stones are inputted into the rough stone input hopper 10, and the recycling stones and soil and sand of small and middle sizes mixed in the rough stones are sorted. At this time, the rough stones that have big sizes and do not pass through the sorting stand 11 are drectly inputted into the first jaw crusher 20, and the middle and small particle stones passed through the sorting stand 11 are transferred to the first screen 40 through the transfer conveyor 3-1 of the lower side of the rough stone input holler 10.
[25] In a second grinding step S2, the rough stones of large size among the rough stones sorted in the first sorting step S1 are inputted in to the first jaw crusher 20 and are ground, and the ground things are reground through the second jaw crusher 20', so that the particles of the rough stones have small sizes and are inputted into the second screen 40.
[26] In a second sorting step S 1', the small and middle size stones and soil and sand among the rough stones sorted in the first sorting step S 1 are re-assorted by the first screen 40. At this time, the multi-hole net member 41 of the first screen 40 is formed of the upper and lower multi-hole net members 42 and 42', so that the stones are sorted into three kinds based on the sizes of the particles. Namely, the soil and sand passed through the upper and lower multi-hole net members 42 and 42'of the first screen 40 are transferred through the soil and sand discharge conveyor 3-3, and the middle size stones not passed through the upper multi-hole net member 42 and the small size stones not passed through the lower multi-hole net member 42'are combined and inputted into the second screen 40'through the transfer conveyor 3-2.
[27] In a third sorting step S1', the soil and sand among the ground things passed through the second sorting step S 1'are discharged to the outsider through the soil and sand discharge conveyor 3-3, and the small size stones and the ground things passed through the second grinding step S2'are inputted into the second screen 40'through the transfer conveyor 3-5. At this time, the ground things are separated as the things that did not pass through the upper multi-hole net member 43 of the second screen 40', and the passed particles pass through the lower multi-hole net member 43'and are separated as the non-passed particle together with the particles passed through the lower multi-hole net member 43'. In addition, in the lower multi-hole net member 43', the things are separated as the soil and sand passed through the first multi-hole net member 43'-1 and the gravels passed through the second multi-hole net member 43'-2 based on the sizes of the particles. Namely, the soil and sand passed through the upper multi-hole net member 43 and the first multi-hole net member 43'-1 are combined at the soil and sand discharge conveyor 3-3 of the first screen 40. The middle size stones not passed through the upper multi-hole net member 43 are inputted into the corn crusher 30 through the transfer conveyor 3-6. In addition, the gravels not passed through the upper multi-hole net member 43 and the second multi-hole net member 43'-2 are inputted into the water collecting container 50 through the inlet conveyor 4, and the small size stones not passed through the first and second multi-hole net members 43'-1 and 43'-1 are inputted into the water collecting container 50 through the inlet conveyor 4'of one side of the second screen 40'.
[28] In a third grinding step S2', the middle size stones not passed through the upper multi-hole net member 43 of the second screen 40'in the third sorting step S 1'are transferred to the corn crusher 30 through the transfer conveyor 3-6 engaged to one side of the second screen 40'and are ground into smalls size stones or gravels. The ground stones are inputted into the second screen 40'through the transfer conveyor 3-7 by connecting to the transfer conveyor 3-5 engaged between the second jaw crusher 20'and the second screen 40'.
[29] In a water processing step S3, as shown in Figures 3 and 4, the stones and gravels sorted by the second screen 40'are inputted into the water collecting container 50 through the inlet conveyors 4 and 4'provided in the lower side and one side of the second screen 40'. At this time, a foreign substance such as vinyl, Styrofoam, etc. is mixed in the inputted stones. At this time, the soil and sand are precipitated onto the surface of the water collecting container 50 based on their high viscosity. The pre- cipitated soil and sand are collected by the wiper 81 of the transfer conveyor 82 and are moved to the soil and sand collecting box 83.
[30] In addition, the foreign substances having lower viscosity are floated. The floating substances are firstly prevented from being moved to the discharge conveyors 5 and 5' by the foreign substance preventing guide 62 engaged at one side of the water collecting container 50, and the floating substances are secondarily collected in one side through the air blowing fan 61 engaged at one side of the water collecting container 50, and the floating substances finally collected are thirdly discharged to the foreign substance discharge conveyor 63.
[31] In a returning step S4, in the case that the small size stone and gravel water- processed in the water collecting container 50 are transferred to the discharge conveyors 5 and 5', the soil and sand attached to or mixed in the stones and gravels are discharged to the guide chute 6 of the lower side of the discharge conveyors 5 and 5' through a plurality of the discharge holes 7 formed on the surface of the discharge conveyors 5 and 5'. At this time, the guide chute 6 is formed at a cbwnwardly slanted angle in the direction of the water collecting container 50, so that the soil and sand discharged are returned to the water collecting container 50.
[32] In the present invention, differently from the conventional sorting system, the middle and small size stones and soil and sand mixed in the rough stone wastes are firstly sorted before the rough stone wastes are ground for thereby enhancing a grinding efficiency. In addition, the sorting efficiency is enhanced during the soil and sand sorting process through the water collecting container 50. In addition, the wastes not passed through the screen when sorting through the screen are thirdly ground for thereby enhancing a grinding efficiency, and the sorting accuracy is enhanced. The transfer conveyor 82 having the wiper 81 is engaged in the water processing part 600 for sorting soil and sand, so that it is possible to prevent consumption of water resource. The foreign substance guide 62 is formed at one side of the water collecting container 50. The dscharge hole 7 and the guide chute 6 are formed in the discharge conveyors 5 ands 5', so that it is possible to enhance the sorting accuracy of the recycling wastes.
Industrial Applicability [33] As described above, in the present invention, in order to add the first sorting step and the third grinding step, there are further provided the first sorting part and the third sorting part. In order to clearly sort the soil and sand and foreign substance from the wastes, the conveyor type soil and sand sorting machine having a wiper and foreign prevention guide are provided in the interior of the water collecting container. The grinding efficiency of wastes is enhanced in such a manner that a plurality of discharge holes are formed on the surface of the discharge conveyor, and the soil and sand guide chute is formed in the lower side. The sorting accuracy is significantly enhanced, and the capacity ratio is lower as compared with the conventional sorting system.
[34] As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing de- scription, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modi- fications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
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