KR102390539B1 - System for crushing and assorting gravels and sand - Google Patents

Abstract

According to one aspect of the present invention, provided is an automatic aggregate sorter which comprises: a hammer crusher operated to crush and digest aggregate (M) inserted into a hopper into which the aggregate formed from recycled stone or stone in a basic resource stage is inserted; a stone dust filter formed of a perforated net in which the aggregate crushed and digested by the hammer crusher is primarily classified; an auxiliary tank for storing the aggregate of a product target size classified in the stone dust filter; and a 3-stage sorting chamber for sorting the aggregate supplied from the auxiliary tank. The stone dust filter includes a return belt arranged so that the aggregate which has not passed through perforated holes is transported to the return belt arranged on the front side of the hammer crusher. Also, the auxiliary tank stores the aggregate crushed by the hammer crusher at a predetermined rate so that supply of the aggregate is continued separately from a supply amount from the hammer crusher.

Description

Automatic aggregate crushing and sorting system {System for crushing and assorting gravels and sand}

The present invention relates to an automated aggregate crushing and sorting machine.

Waste concrete, waste asphalt, waste wood, and stone materials generated at construction sites are crushed and recycled by sorting aggregates and foreign substances. At this time, the selected aggregate refers to rocks, sand, gravel, etc. that exist in rivers, forests, public waters, and other ground and underground, and it refers to those used as basic materials for construction work. In addition, the aggregate may be in the form of processed stone or construction waste. In the case of reprocessing such aggregates, the size of aggregates required at the site is different, so it is necessary to sort by size. Conventionally, a technique for sorting aggregates using a vibrating screen has been used, but this technique has a low efficiency of sorting aggregates and is an additional method for separating relatively large coarse aggregates or fines over a certain particle size that cannot be used as construction materials. work is required Accordingly, research and development of a device capable of classifying fine powder in advance and maximizing the efficiency of aggregate sorting compared to the prior art to increase aggregate production is required.

Embodiments of the present invention are to replace the conventional aggregate sorting device to provide an automatic aggregate sorting machine for crushing and classifying stones in the recycling or basic resource stage.

According to one aspect of the present invention, a hammer crusher operated to crush and digest the aggregate (M) put into the hopper into which the aggregate formed of recycled stone or stone of the basic resource stage is put; a stone dust sieve formed as a perforated network in which the aggregates crushed and digested by the hammer crusher are first classified; an auxiliary tank in which the aggregate of the target size of the product classified in the stone dust sieve is stored; a three-stage sorting chamber in which the aggregate supplied from the auxiliary tank is sorted; and the stone dust sieve includes a return belt disposed so that the aggregate that has not passed through the perforation is transferred to a return belt disposed in front of the hammer crusher, and the auxiliary tank contains the aggregate crushed in the hammer crusher at a certain rate. By storing, an automatic aggregate sorting machine in which the supply of the aggregate is continuous independently of the supply amount of the hammer crusher may be provided.

The automatic aggregate sorting machine according to embodiments of the present invention is provided with an auxiliary tank to provide an automatic aggregate crushing and sorting system capable of continuous processing even in case of emergency.

1 is a schematic diagram of an automatic aggregate sorter according to an embodiment of the present invention.
2 is a view schematically showing the first half of the automatic aggregate sorter shown in FIG.
3 is a view schematically showing the second half of the automatic aggregate sorter according to an embodiment of the present invention.
4 is a view schematically showing an operation example of the crusher shown in FIG.
5 is a view schematically showing a three-stage sorting chamber according to an aspect of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be noted that the following examples are provided to help the understanding of the present invention, and the scope of the present invention is not limited to the following examples. The following embodiments are provided to more completely explain the present invention to those with average knowledge in the relevant technical field, and detailed descriptions for known configurations that may unnecessarily obscure the technical gist of the present invention to be omitted.

1 is a schematic diagram of an automatic aggregate sorter according to an embodiment of the present invention.

Referring to FIG. 1 , the automatic aggregate sorter 10 according to the present embodiment includes a hopper 100 into which an aggregate M formed of recycled stone or stone of the basic resource stage is put, and the aggregate input into the hopper 100 . A hammer crusher 200 operated so that (M) is crushed and extinguished, and a stone dust sieve 300 formed of a perforated network in which aggregate (M) crushed and digested by the hammer crusher 200 is first classified, and a stone dust sieve ( 300) a three-stage sorting chamber 600 in which the aggregate (M) of the target size of the product classified in the auxiliary tank 400 is stored, and the aggregate (M) supplied from the auxiliary tank 400 is sorted; may include

Hereinafter, each configuration shown in FIG. 1 will be described in more detail with reference to the drawings.

2 is a view showing the first half of the automatic aggregate sorter shown in FIG.

Referring to FIG. 2 , the automatic aggregate sorter of this embodiment may include a hopper 100 into which the aggregate M is put into an inlet formed on one side. The hopper 100 may be formed of two side surfaces 110 formed in a trapezoidal shape and two connecting surfaces 120 inclined to connect them. The hopper 100 of such a form may be of a form converging downward. In addition, the hopper 100 may be formed with a frame outlet 100a opened to a predetermined size on one side. At this time, the direction converging to the lower side of the hopper 100 may be the direction of the frame outlet (100a). In addition, the hopper 100 may be formed in a size sufficient to accommodate aggregates of various sizes.

The first transfer line 130 may be connected to the hopper 100 as described above. The first transfer line 130 may be a transfer path formed in the form of a transfer belt. The first transfer line 130 may transfer aggregates in the form of raw materials input to the hopper 100 . Such a first transfer line 130 may be arranged in connection with the frame outlet (100a) formed in the hopper (100). In addition, the first transfer line 130 may be formed with a sufficient width to accommodate aggregates of various sizes. In addition, in the first transfer line 130 , a guide barrier 131 in the form of a partition wall formed at a predetermined height may be formed on the left and right sides to prevent an accident caused by the falling of aggregates to the outside in the transfer step. The guide barrier 131 may be formed to a sufficient height to prevent the separation of the aggregate.

A filter plate 140 may be disposed at the end of the first transfer line 130 in the transfer direction. The filter plate 140 may select the aggregate M having a size close to the product among the aggregates M transferred through the first transfer line 130 without going through an unnecessary process. Such a filter plate 140 may be in the form of an iron plate having a plurality of perforations formed at a rate of 150% of the size approved as a product. At this time, since the filter plate 140 is a part through which aggregates of various sizes pass, it may be formed of a material and thickness that provides sufficient durability. In addition, the filter plate 140 of this embodiment may be formed at a ratio of 150%, which is a predetermined larger ratio than the size that can be commercialized so as to prevent a situation in which the perforation is clogged when the aggregate is in a wet state, but is not limited thereto. If the size is larger than a predetermined ratio, the ratio may be appropriately changed according to the needs of the user.

On the other hand, the impact control chain 150 may be disposed at the boundary portion of the filter plate 140 at the end of the first transfer line 130 as described above. The impact control chain 150 may be connected to the support 132 formed in a form in which both ends are supported by the guide barrier 131 formed in the first transfer line 130 to extend downward by a predetermined length. The impact control chain 150 may be in contact with the aggregate (M) to be transported and serve as a blocking film for controlling the speed in order to alleviate the shock phenomenon occurring in the transport process. A plurality of such shock control chains 150 may be connected to the support 132 and provided. In addition, the impact control chain 150 disposed on the center side of the support 321 may be arranged horizontally with each other. On the other hand, the shock control chain 150 disposed on the outside of the support 132 may be in the form of a chain in which both ends are supported on the upper side to form a 'U' shape. Aggregates (M) facing outward by the impact control chain 150 of this type are caught on the 'U'-shaped end, so that the direction can be switched inward. The aggregate (M) may be guided so as to prevent the outward deviation and move to the center side.

The automatic aggregate sorter of this embodiment may include a hammer crusher 200 in which an initial crushing process of aggregate M is formed and transported at a position adjacent to the filter plate 140 .

The hammer crusher 200 has an inlet in the form of a hopper so that the aggregate M can enter the inside. The hammer crusher 200 may be operated to crush the aggregate M that has entered the inside with a sawtooth-shaped crushing blade (not shown) disposed on the inside. At this time, the amount of aggregate M accommodated in the hammer crusher 200 may be greater than or equal to the amount of aggregate M discharged from the auxiliary tank 400 disposed in the next stage of the hammer crusher 200 .

On the other hand, the automatic aggregate sorter of this embodiment may include a second transfer line 210 disposed below the hammer crusher 200. The second transfer line 210 may be a transfer path through which the aggregate M passing through the hammer 200 is transferred. The second transfer line 210 may be formed in the form of a conveyor belt, and the aggregate M that has passed through the hammer crusher 200 and has been digested first is transferred to be positioned at the lower side of the first transfer line 130 to be formed. can The second transfer line 210 may be operated so that the time for transferring the aggregate M to one side is adjusted. Accordingly, the process progress speed of the aggregate (M) proceeding to the rear side of the second transfer line 210 can be adjusted.

On the other hand, the automatic aggregate sorter of this embodiment may include a stone dust sieve 300 disposed below the first transfer line 130 so that the transfer of aggregates is formed in a continuous manner. The stone dust sieve 300 may be in the form of a mesh formed with perforations having a size through which stone powder smaller than the commercialized size among the digested aggregate M and the initially input aggregate M by the primary crusher (M). At this time, the size determined by the stone dust may be a size of 0.5 mm or less. The stone dust sieve 300 may be formed inclined at a predetermined angle. In addition, a vibrator is coupled to one side of the stone dust sieve 300 so that an excitation of a predetermined size may be applied. Accordingly, the aggregate M formed in a size larger than that of stone dust moved to the stone dust sieve 300 may be moved along an inclination by vibration or transmitted through the perforated holes. In addition, the stone dust sieve 300 may have a width determined to accommodate the aggregate M falling from the sieve plate 140 in the second transfer line 210 . In addition, the stone dust sieve 300 is formed to be inclined toward the center and the transferred aggregate M may be collected toward the center in the process of being conveyed by vibration. In addition, the stone dust sieve 300 may be formed with a different hole size in a predetermined portion on the rear side. The rear side of the stone dust sieve 300 may be formed with a perforation formed in a proportion of 100% of the product size. Accordingly, the product-sized aggregate M is passed through the hole formed in the rear side of the stone dust sieve 300 and can be transferred to the auxiliary tank 400 disposed on the lower side.

Meanwhile, the stone dust sieve 300 may include a return belt 310 . The return belt 310 is a conveyor formed so that aggregate M of product size or larger that does not pass through a hole formed on the rear side of the stone sieve 300 is transferred to the first transfer line 130 disposed on the front side of the hammer crusher 200 . It could be a belt. The aggregate M moved to the first transfer line 130 through the return belt 310 may be re-crushed in the hammer crusher 200 to be digested to a size suitable for the product.

The aggregate M moved along the slope of the stone dust sieve 300 of this embodiment may be accommodated in the auxiliary tank 400 . The auxiliary tank 400 may be a tank for controlling the supply amount and discharge amount of the crushed and digested aggregate (M). Auxiliary tank 400 may be formed with a space sized to store a predetermined amount of aggregate (M) therein. In addition, the auxiliary tank 400 may be formed with an auxiliary tank inlet 401 to which aggregate is supplied from the stone dust sieve 300 . Auxiliary tank inlet 401 may be formed in the form of a conical in the reverse direction or a column shape of the upper and lower narrows that are easy to accommodate the aggregate M, such as a hopper. In addition, the auxiliary tank 400 may have an auxiliary tank outlet 320 formed on one side. The auxiliary tank outlet 402 may be a part to which the aggregate M stored in the auxiliary tank 400 is supplied to proceed to the next step. Such an auxiliary tank 400 stores the aggregate M crushed in the hammer crusher 200 at a certain ratio, and may be operated to continuously supply the aggregate M independently of the supply amount of the hammer crusher 200 . This operation of the auxiliary tank 400 supplies the stored aggregate M even during the repair work of the hammer crusher 200 with frequent repair frequency, so that the work of the aggregate crushing and sorting system can be continuously performed.

3 is a view showing the second half of the automatic aggregate sorter according to an embodiment of the present invention.

Referring to FIG. 3 , the automatic aggregate sorter according to an embodiment of the present invention may include a crusher 500 . The crusher 500 may be disposed when the digestibility of the aggregate M does not reach the target amount only by the crushing operation of the hammer crusher 200 . When the crusher 500 is not installed, the auxiliary tank 400 may supply the aggregate M to the three-stage sorting chamber 600 . The crusher 500 may be formed by being connected to the second transfer line 210 to accommodate the aggregate M supplied from the auxiliary tank 400 .

Such a crusher 500 may be formed with an outer casing support 510 that is in contact with the installation surface and supports the entirety. The outer casing support 510 may be formed in a cylindrical shape. In addition, the outer casing support 510 may be formed on one side, and a crushing outlet 511 through which the digested aggregate M is discharged may be formed. The crushing outlet 511 may be formed to face the three-stage sorting chamber 600 disposed on the rear side.

In addition, the crusher 500 may include an outer casing 520 formed in a cylindrical shape having a diameter smaller than that of the outer casing support 510 . The outer casing 520 may be formed in a cylindrical shape with an open top. The outer casing 520 may be formed in a size that can accommodate the aggregate M input to the crusher 500 . The upper side of the outer casing 520 may be formed in a dome shape to prevent the aggregate crushed by the crusher 500 from being separated to the outside by the crushing force.

In addition, the crusher 500 may include a rotary blade support plate 530 .

The rotary blade support plate 530 may be a plate having a predetermined thickness disposed inside the outer casing 520 . In addition, the rotary blade support plate 530 may have an aggregate inlet (530a) formed in the center. The aggregate inlet (530a) formed in the rotary blade support plate 530 may be formed as a circular groove of a predetermined diameter. Aggregate inlet (530a) may be formed in a size that facilitates the input of the aggregate (M), the secondary crushing process proceeds after the primary crushing process by the hammer crusher (200). In addition, the aggregate inlet (530a) has an inner shaft rotating blade 540 may be positioned in a coupled form.

The crusher 500 according to an embodiment of the present invention may include an inner shaft rotating blade 540 .

The inner shaft rotary blade 540 may be a part operated so that the aggregate M can be crushed in the crusher 500 . The inner shaft rotating blade 540 may be rotated around the central axis of the outer casing 520 . At this time, the inner shaft rotation blade 540 may be formed in a rotational operation in the form of a rotation shaft flowing left and right.

The inner shaft rotating blade 540 is formed in an 'I' shape, and a central end portion 541 extending in the vertical direction of the center may be formed. The central end 541 of the inner shaft rotating blade 540 may be formed to have a size smaller than that of the aggregate inlet 530a by a predetermined ratio. At this time, the aggregate M may be introduced and crushed through the clearance generated by the size difference between the inner shaft rotation blade 540 and the aggregate input port 530a.

In addition, a lower streamlined blade 542 may be formed on the lower side of the inner shaft rotating blade 540 . The lower streamlined blade 542 may be formed by being connected to the lower side of the central end 541 . The lower streamlined blade 542 may be formed in the form of a circular plate, so that a streamlined curve may be formed on the lower side thereof. The lower streamlined blade 542 may be spaced apart from the rotary blade support plate 530 by a predetermined distance in the lower direction to form a gap 500a. The gap 500a formed between the lower streamlined blade 542 and the rotary blade support plate 530 disposed and formed in this way may be a space into which the crushing target aggregate M is input and crushed.

4 is a view showing an operation example of the crusher shown in FIG.

3 and 4 , the gap 500a formed between the lower streamlined blade 542 and the rotary blade support plate 530 may be a space to be crushed. The lower streamlined blade 542 formed in a streamlined shape may have bearings B on its lower side symmetrical and spaced apart from each other by a predetermined distance. The rotary blade support plate 530 is in contact with the surface of the bearing (B) and a rolling motion is formed so that it can flow left and right. At this time, the lower streamlined blade 542 may come into contact with the bearing B so that the gap 500a formed by flowing does not spread more than a certain size. In this way, it is possible to prevent the passage of the uncrushed aggregate by the flow so that the gap 770a does not widen more than a certain size. In addition, the central axis of the lower streamlined blade 542 may flow left and right, and the interval from the rotary blade support plate 530 may be changed. At this time, the aggregate (M) injected therebetween may be crushed by being compressed in the space created by the gap between the lower streamlined blade 542 and the rotary blade support plate 530 .

In addition, an upper stopper plate 543 may be formed on the upper side of the inner shaft rotating blade 540 . The upper stopper plate 543 may be a circular plate of a predetermined diameter formed on the upper side of the central end portion 541 . At this time, the size of the upper stopper plate 543 may be easily formed to prevent the aggregate M crushed by the lower streamlined blade 542 from being thrown out by the crushing force.

The automatic aggregate sorter 10 of an embodiment of the present invention may include a tertiary transfer line 550 disposed in a portion adjacent to the crushing outlet 511 direction of the crusher 500 . The tertiary transfer line 550 may be a transfer path for transferring the aggregate M to the three-stage sorting chamber 600 .

In another embodiment, when the crusher 500 is not installed, the auxiliary tank 400 may be supplied with the aggregate M to the three-stage sorting chamber 600 .

5 is a view showing a three-stage sorting chamber according to an aspect of the present invention.

Referring to FIG. 5 , the three-stage sorting chamber 600 according to the present embodiment has an external shape, a space of a predetermined size is formed therein, and a chamber housing 610 formed by tilting the rear side downward, and a chamber housing ( 610), the primary sorting network 620, in which a 100%-sized perforation is formed, and the primary sorting network 620, which are spaced apart from each other by a predetermined distance downward from the primary sorting network 620. 80% of the primary sorting network A secondary screening network 630 in which a hole of a size is formed; and a tertiary sorting network 640 in which a hole having a size of 60% of the product size is formed and spaced apart from the secondary sorting network 630 by a predetermined interval downward. may include Hereinafter, each configuration will be described in detail with reference to the drawings.

The primary screening network 620 of this embodiment may be arranged in the transverse direction of the 'L'-shaped space. In this case, the 'L'-shaped space in which the primary screening network 620 is disposed may be formed at the outermost side of the inner space of the chamber housing 610 . In addition, the primary product outlet 621 may be formed at the boundary extending from the 'L'-shaped space where the primary sorting network 620 is disposed to the space in the longitudinal direction. The primary product outlet 621 may be opened after the aggregate M is sufficiently classified through the primary screening network 620 .

The secondary screening network 630 of this embodiment may be formed in an 'a'-shaped space formed inside the secondary screening network 630 spaced apart from the primary screening network 620 by a predetermined interval. The secondary screening network 630 may be disposed in a form corresponding to that of the primary screening network 620 . In addition, a secondary product outlet 631 may be formed at the boundary extending from the 'L'-shaped space where the secondary sorting network 630 is disposed to the space in the longitudinal direction. The secondary product outlet 631 may be opened when the aggregate M is sufficiently classified through the secondary sorting network 630 .

In addition, the tertiary sorting network 640 of this embodiment of the present embodiment may be formed in an 'a'-shaped space formed inside the tertiary sorting network 640 spaced apart from the secondary sorting network 630 by a predetermined interval. The tertiary sorting network 640 is formed in a shape corresponding to the secondary sorting network 630 and, when sufficiently classified, the tertiary product outlet 641 may be opened. The aggregate M moved downward through the tertiary screening network 640 is discharged as an aggregate M of the smallest size to be commercialized, and may be classified into four product sizes and discharged.

In such a three-stage selection chamber 600 , a motor accommodating end 650 may be formed in front of the chamber housing 610 . The motor accommodating end 650 may have a triangular end protruding forward of the chamber housing 610 . An operating shaft 651 extending downward may be formed at the end of the motor receiving end 650 . The operating shaft 651 may be connected to the motor M at an eccentric position. The chamber housing 610 connected in this way may flow forward and backward when the motor M is operated. Classification of aggregates introduced into the chamber housing 610 by such forward and backward movements can be facilitated.

As described above, the automatic aggregate sorting machine according to the present embodiments enables a sorting process in which aggregates collected through the first to third transfer lines and crushers can be uniformly sized.

In the above, although embodiments of the present invention have been described, those of ordinary skill in the art can add, change, delete or add components within the scope that does not depart from the spirit of the present invention described in the claims. It will be said that various modifications and changes of the present invention can be made by, and this is also included within the scope of the present invention.

M: Aggregate 100: Hopper
200: hammer crusher 300: stone powder sieve
400: auxiliary tank 500: crusher
600: 3-stage sorting chamber

Claims (5)

a hopper 100 into which the recycled stone or aggregate (M) formed of the stone of the basic resource stage is put;
a hammer crusher 200 operated so that the aggregate (M) put into the hopper 100 is crushed and digested;
Stone powder sieve 300 formed as a perforated network in which the aggregate (M) crushed and digested by the hammer crusher 200 is first classified;
Auxiliary tank 400 for storing the aggregate (M) of the target size of the product classified in the stone dust sieve 300;
a three-stage sorting chamber 600 in which the aggregate (M) supplied from the auxiliary tank 400 is sorted; includes
The stone dust sieve 300 is
and a return belt 310 disposed so that the aggregate M, which has not passed through the perforation, is transferred to the return belt 310 disposed on the front side of the hammer crusher 200,
The auxiliary tank 400 stores the aggregate M crushed in the hammer crusher 200 at a certain ratio, so that the supply of the aggregate M is continuous independently of the supply amount of the hammer crusher 200 and
The auxiliary tank 400 is located between the three-stage sorting chamber 600 .
a crusher 500 to which the aggregate (M) is transported and crushed; include more
The crusher 500 is
An outer casing support portion 510 that is in contact with the installation surface and supports the entirety;
an outer casing 520 formed in a cylindrical shape having a smaller diameter than the outer casing support 510;
a rotary blade support plate 530 formed of a plate having a predetermined thickness disposed inside the outer casing 520 and having an aggregate inlet 530a formed in a circular groove of a predetermined diameter in the center; and
an inner shaft rotating blade 540 positioned so as to penetrate the aggregate inlet (530a) so that the aggregate (M) can be crushed; includes
The inner shaft rotation blade 540 is
a central end 541 formed in an 'I' shape and extending in the vertical direction of the center to have a smaller size than the aggregate inlet (530a);
a lower streamlined blade 542 formed in the form of a circular plate on the lower side, a streamlined curve is formed on the lower side, and a gap 500a of a predetermined size is formed therebetween and the rotary blade support plate 530;
an upper stopper plate 543 formed as a circular plate having a predetermined diameter on the upper side; Automatic aggregate sorter comprising. delete delete delete The method according to claim 1
The three-stage screening chamber 600 is
a chamber housing 610 that forms an outer shape and has a space of a predetermined size therein and is inclined downward at the rear side;
a primary sorting network 620 disposed on the upper end of the interior of the chamber housing 610 to form a product-sized perforation;
a secondary sorting network 630 arranged to be spaced apart from the primary sorting network 620 by a predetermined interval downward and in which a hole having a size of 80% of that of the primary sorting network 620 is formed; and
a tertiary sorting network 640 in which a hole of 60% of the size of the primary sorting network 620 is formed and spaced apart from the second sorting network 630 downward by a predetermined interval; Automatic aggregate sorter comprising.

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