KR20100041038A - The apparatus for recycle sandexploiting construction waste concrete and stone - Google Patents

Abstract

PURPOSE: An aggregate manufacturing device using building stone and construction waste is provided to reduce the space and the cost for precipitating and purifying waste water including dust by manufacturing dry sand without using water. CONSTITUTION: An aggregate manufacturing device using building stone and construction waste comprises the following: a main hopper(1); a first screen(2) separating raw stone with the size over 40 millimeters to a first collecting unit and transferring the raw stone with the size under 40 millimeters to a second conveyor(23); a second screen(3) separating the raw stone with the size of 5~40 millimeters to a third conveyor(31) and transferring the raw stone with the size under 5 millimeters to a fourth conveyor(32); a physical crusher(4) crushing the raw stone with the size under 5 millimeters; and a dry sand sorting apparatus(5) transferring the normal dry sand selected from the crushed raw stone.

Description

Aggregate manufacturing apparatus using stone and construction waste {The apparatus for recycle sandexploiting construction waste concrete and stone}

The present invention relates to an apparatus for producing aggregate using stone and construction waste, and more particularly, to an apparatus for preparing aggregate using dry water without using water to remove dust and fines.

Due to the increase in population demand among natural resources, the demand for aggregates such as sand and gravel, which are the main raw materials of concrete, is exploding.

Therefore, in the past, river sand was mainly used, but it did not meet the demand and used sand of the beach containing a lot of salt, but this caused side effects causing serious destruction of the natural environment.

Therefore, construction waste, that is, materials such as waste concrete are mainly used in landfill or in landfill construction, but researches to crush them again and use them as aggregates have been applied to a considerable part.

Or the research that utilizes by crushing and crushing it is also being used.

But the biggest problem with this technique is the quality of the aggregates.

That is, during the crushing, a small amount of fine fine powder is generated. The easiest way to remove this is to remove fine dust and dust in the air by adding water, but in this case, the generated waste water contaminates the stream. It requires a sedimentation tank to settle the dust, which increases the cost of the facility.

In addition, in the case of wet sand, it is preferable to manufacture dry sand through a process of drying it for the preferred use, and thus there is a problem in that additional cost is consumed.

Therefore, it is a situation that the development of equipment for producing high-quality aggregates without using water for aggregates in a state in which dust and fine powder are mixed together with an aggregate manufacturing apparatus for easily classifying the broken aggregates by size.

The present invention has been developed to solve the above problems, the object of the present invention is to develop a device that can be easily separated dry dry sand, that is, fine aggregate in the state of mixing with dust.

In order to achieve the above object, the present invention provides an aggregate manufacturing apparatus for producing aggregates by grinding and classifying stone and construction waste;

A main hopper collecting crushed gemstones of various sizes;

A primary screen which separates the size of the gemstone 40 mm or more by a first conveyor into a separate first collecting part and transfers the size of 40 mm or less into a second conveyor;

A secondary screen which separates 5 mm or more of gemstones of 40 mm or less transferred by the second conveyor and separates them and transfers them to a third conveyor, and transfers gemstones of 5 mm or less to a fourth conveyor;

A physical grinder for crushing 5 mm or more of the gemstones separated from the secondary screen and separating the gemstones of 5 mm or less from the bottom thereof and transferring them to the fifth conveyor, and transferring the 5 mm or more gemstones to the sixth conveyor for conveying the second conveyor. ;

A series of dry sand sorting apparatus which separates the powder of fine particles of 5 mm or less of ore transported from the fourth and fifth conveyors into the second collecting unit, selects only the normal dry sand, and transfers the dry sand to the dry sand collecting unit by the seventh conveyor. The device is characterized in that the organic operation of the connection.

In addition, the dry sand sorting apparatus;

A funnel-shaped injection portion into which 5 mm or less of gemstones transferred from the fourth and fifth conveyors is injected is formed on the upper side, and one side of the louver type air inlet can adjust the flow of air introduced into the inside by adjusting the angle. A main body which is formed and has an eighth conveyor formed at a lower end thereof to transfer the dry sand dropped to the seventh conveyor;

The upper surface is inclined at an angle of less than 30 degrees in the interior of the main body is formed vertically multi-stage in the form of two facing each other so that the gemstones dropped from the injection portion is stacked on the upper surface, both ends are hinged to the inner wall surface of the main body A stacker which is fixed and rotates to increase the inclination of the upper surface by the weight when a predetermined or more gemstones are stacked on the upper surface by a weight mounted at the other end;

1 is connected to the other side of the air inlet of the main body so that air flows out as the vortex is formed therein so that air and light particles move upwards and heavy particles accumulate on the eighth conveyor extending downward. Tea cyclones;

The suction fan is mounted to allow the air to escape to the upper part while the light particles and the air escaped to the upper part of the primary cyclone are formed therein, and the particles excluding the air are transferred to the second collecting part by the ninth conveyor. It is characterized by consisting of a secondary cyclone.

In addition, the inside adjacent to the other side formed air inlet portion of the main body is characterized in that a number of '' 'baffle formed in the air blowing direction is formed.

As described above, the present invention produces dry sand without using water, thereby reducing space and cost according to precipitation and purification of wastewater containing dust, and reducing facilities and costs for drying wet sand. .

In addition, there is no process of drying the wet sand, there is an effect that the productivity is improved.

Accordingly, the configuration of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce.

1 is a conceptual diagram according to an embodiment of the present invention, in the aggregate manufacturing apparatus for producing aggregates by grinding and classifying stone and construction waste;

A main hopper (1) for collecting crushed gemstones of various sizes;

A primary screen 2 for separating the size of the gemstone 40 mm or more into a separate first collecting part 22 by the first conveyor 21 and transferring the size of the 40 mm or less to the second conveyor 23;

Secondary screen (5mm or more of the gemstone of 40mm or less transferred by the second conveyor 23 is separated and transferred to the third conveyor 31, and the gemstone of 5mm or less is transferred to the fourth conveyor 32 ( 3) and;

5mm or more of the gemstone separated from the secondary screen 3 is pulverized, and 5mm or less of the gemstones are separated from the bottom thereof and transferred to the fifth conveyor 41, and 5mm or more of the gemstone is transferred to the second conveyor 23. A physical grinder 4 for conveying to the sixth conveyor 42;

Particles of fine particles of 5 mm or less of ore transported from the fourth and fifth conveyors 32 and 41 are separated by the second collecting unit 51, and only normal dry sand is selected and dried by the seventh conveyor 52. The apparatus for producing aggregates using stone and construction wastes is characterized in that a series of devices of the dry sand sorting device 5 for transporting to the sand collecting unit 53 are organically connected and operated.

Here, the aggregate of 40mm or more is to be used for the purpose of general aggregate, that is, gravel, or an embodiment to produce fine aggregate, that is, sand by an additional crushing process.

In addition, the primary and secondary screens (2, 3) and the physical grinder (4) has been used in the existing device, the detailed configuration of the device will be omitted as a general.

However, in the present application, after the raw sand of 5mm or less is separated by the dry sand sorting device 5, fine particles are mixed in addition to the particles that can be used as normal dry sand. It makes sense.

Of course, as described above, in order to remove such fine powder, a method of spraying water and sweeping the fine powder deposited on the surface of the particles together with water has been used, but in the present application, dry sand is produced by using a method that does not use water. It is.

Figure 2 is a conceptual diagram showing a dry sand sorting apparatus according to an embodiment of the present invention, Figure 3a to 3b is a detail of the main portion according to an embodiment of the present invention, the dry sand sorting device (5);

A funnel-shaped injection portion 541 is formed on the upper portion of the fourth and fifth conveyor 32, 41 is injected into the gemstone of 5mm or less, the flow of air introduced into the interior by adjusting the angle to one side A louver type air inlet part 542 capable of adjusting the body, and an eighth conveyor 543 formed at a lower end thereof to transfer the dry sand dropped to the seventh conveyor 52;

The upper surface of the main body 54 is formed to be inclined at an angle smaller than 30 degrees so that two stones are vertically formed in a vertically facing manner so that the gemstones separated from the injection part 541 are stacked on the upper surface, and both ends are formed of the main body ( 54 is fixed to the inner wall surface of the hinge shaft 551, the stacker 55 that rotates to increase the inclination of the upper surface by the weight when a predetermined or more gemstones are stacked on the upper surface by the weight 552 mounted on the other end thereof )Wow;

The air is connected to the other side of the air inlet 542 of the main body 54 to form a vortex therein so that the air escapes to the upper portion so that the air and light particles move to the upper portion and heavy particles extend to the lower portion. A primary cyclone 56 to be stacked in the eight conveyor 543;

The suction fan 571 is mounted to allow the air to escape upwards while the light particles and the air escaped to the complement of the primary cyclone 56 form a vortex therein. 51) shows an aggregate manufacturing apparatus using stone and construction waste, characterized in that consisting of a secondary cyclone (57) to be transported by the ninth conveyor (572).

According to this principle, the gemstone having a diameter of 5 mm or less supplied to the injection portion 541 is freely dropped, and the path is orthogonal to the flow of air flowing from the air inlet 542 to the primary cyclone 56. .

Therefore, heavy particles fall and relatively light particles are transported to the primary cyclone 56.

In this case, if the stacker 55 is not present, it immediately falls to the bottom, and the time for which the fine powder is sucked into the primary cyclone 56 is extremely short, and the falling gemstones do not fall evenly to prevent the efficiency from being lowered.

In other words, the gemstones stacked on the inclined surface of the stacker 55 gradually slide and spread evenly from the bottom to the inside of the main body so as to increase the separation efficiency, and the stacking and scattering are repeated in multiple stages. As a result, the fine powder on the particles is dropped by the collision, so that a higher quality dry sand can be obtained.

At this time, the suctioned air is caused by the suction force of the suction fan 571 of the secondary cyclone 57. For smooth operation, two or more secondary cyclones 57 and the suction fan 571 may be placed to increase suction force. It is preferable to.

In addition, in the present invention, the air inlet portion 542 of the main body 54 is adjacent to the other side is formed inside a plurality of 's' -shaped baffles 58 in the air blowing direction is formed to blow like a fine powder Sand grains were to collide and fall.

Figure 4a to 4b is a conceptual diagram showing a cyclone according to another embodiment of the present invention, in particular the dry sand sorting device of the apparatus according to the present invention is the capacity or input or produced in the process or the raw stone is waste concrete or crushed stone According to the recognition, the size, quantity and arrangement of the stacker 55 and the cyclones 56 and 57 may be optimally arranged by the user.

That is, in the case of waste concrete, even if it is crushed in the same process, a large amount of fine powder is contained. Thus, in order to remove such fine powder, the stacker 55 is vertically arranged in two or more stages so that more fine powder is deposited on the particles. It is preferable to drop by collision and to supply to the cyclone by air. At this time, the fine powder below a predetermined size is not easy to use and may be manufactured without the primary cyclone 56.

1 is a conceptual diagram according to an embodiment of the present invention

Figure 2 is a conceptual diagram showing a dry sand sorting apparatus according to an embodiment of the present invention

3a to 3b is a detailed view of the main part according to an embodiment of the present invention

4a to 4b is a conceptual diagram showing a cyclone according to another embodiment of the present invention

<Explanation of symbols for main parts of the drawings>

1: Main Hopper

2: primary screen

     21: first conveyor 22: first collector

     23: second conveyor

3: secondary screen

     31: 3rd conveyor 32: 4th conveyor

4: physical crusher

     41: 5th Conveyor 42: 6th Conveyor

5: dry sand sorting device

     51: second collector 52: the seventh conveyor

     53: dry sand collector

     54: body

           541: inlet 542: air inlet

           543: 8th Conveyor

     55: stacker

           551: hinge axis 552: weight

     56: primary cyclone

     57: secondary cyclone

           571: suction fan 572: ninth conveyor

     58: baffle

Claims (3)

An aggregate manufacturing apparatus for producing aggregate by grinding and classifying stone and construction waste; A main hopper (1) for collecting crushed gemstones of various sizes; A primary screen 2 for separating the size of the gemstone 40 mm or more into a separate first collecting part 22 by the first conveyor 21 and transferring the size of the 40 mm or less to the second conveyor 23; Secondary screen (5mm or more of the gemstone of 40mm or less transferred by the second conveyor 23 is separated and transferred to the third conveyor 31, and the gemstone of 5mm or less is transferred to the fourth conveyor 32 ( 3) and; 5mm or more of the gemstone separated from the secondary screen 3 is pulverized, and 5mm or less of the gemstones are separated from the bottom thereof and transferred to the fifth conveyor 41, and 5mm or more of the gemstone is transferred to the second conveyor 23. A physical grinder 4 for conveying to the sixth conveyor 42; Particles of fine particles of 5 mm or less of ore transported from the fourth and fifth conveyors 32 and 41 are separated by the second collecting unit 51, and only normal dry sand is selected and dried by the seventh conveyor 52. Apparatus for producing aggregates using stone and construction waste, characterized in that a series of devices of the dry sand sorting device (5) to be transported to the sand collector 53 is organically connected. The method of claim 1, wherein the dry sand sorting device (5); A funnel-shaped injection portion 541 is formed on the upper portion of the fourth and fifth conveyor 32, 41 is injected into the gemstone of 5mm or less, the flow of air introduced into the interior by adjusting the angle to one side A louver type air inlet part 542 capable of adjusting the body, and an eighth conveyor 543 formed at a lower end thereof to transfer the dry sand dropped to the seventh conveyor 52; The upper surface of the main body 54 is formed to be inclined at an angle smaller than 30 degrees so that two stones are vertically formed in a vertically facing manner so that the gemstones separated from the injection part 541 are stacked on the upper surface, and both ends are formed of the main body ( 54 is fixed to the inner wall surface of the hinge shaft 551, the stacker 55 that rotates to increase the inclination of the upper surface by the weight when a predetermined or more gemstones are stacked on the upper surface by the weight 552 mounted on the other end thereof )Wow; The air is connected to the other side of the air inlet 542 of the main body 54 to form a vortex therein so that the air escapes to the upper portion so that the air and light particles move to the upper portion and heavy particles extend to the lower portion. A primary cyclone 56 to be stacked in the eight conveyor 543; The suction fan 571 is mounted to allow the air to escape to the upper part while the light particles and the air escaped to the upper part of the primary cyclone 56 form an vortex therein. 51) aggregate manufacturing apparatus using stone and construction waste, characterized in that consisting of a secondary cyclone (57) to be transported by the ninth conveyor (572). 3. The stone according to claim 2, wherein a plurality of 's'-shaped baffles 58 are formed in the inner side adjacent to the other side where the air inlet part 542 of the main body 54 is formed. Aggregate manufacturing apparatus using construction waste.

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