KR102468248B1 - Multi Drum-type foreign substance adsorption screening device - Google Patents

Abstract

The present invention includes a pair of screen drums in which a hood manufactured to provide a uniform suction force to a conveyor belt having a U-shaped cross section is disposed therein, and the half flips the aggregate between the pair of screen drums. It relates to a multi-drum type foreign matter adsorption sorting device with improved foreign matter removal performance by installing electrons to be configured to remove foreign matter from the bottom of the aggregate.
The present invention includes “disc-shaped first and second side plates disposed on both sides and a separation network surrounding the first and second side plates, and the first side plates are spaced apart from each other so that they face each other. a pair of screen drums; Hoods disposed inside the pair of screen drums and open toward the conveyor belt transporting the aggregate to provide suction force generated by the suction fan to the conveyor belt; and a rotating shaft coupled to the center of the first side plate of each of the pair of screen drums to simultaneously pivot the pair of screen drums by externally applied power. Including, wherein the second side plate is formed with an open hole, and the suction force provided to the hood is applied to the foreign matter in the aggregate conveyed to the conveyor belt through the separation network, so that the foreign matter is adsorbed to the separation network. It provides a multi-drum type foreign matter adsorption and sorting device” characterized in that it is configured to be transported along the rotational direction of the screen drum and discharged in a section where the suction force is not provided.

Description

Multi drum type foreign substance adsorption screening device {Multi Drum-type foreign substance adsorption screening device}

The present invention includes a pair of screen drums in which a hood manufactured to provide a uniform suction force to a conveyor belt having a U-shaped cross section is disposed therein, and the half flips the aggregate between the pair of screen drums. It relates to a multi-drum type foreign matter adsorption sorting device with improved foreign matter removal performance by installing electrons to be configured to remove foreign matter from the bottom of the aggregate.

According to the National Waste Generation and Treatment Status Report (2019, Ministry of Environment and Korea Environment Corporation), construction waste accounts for 48.1% of total waste, and the amount of construction waste generated was 206,951 tons/day in 2018, a 5.4% increase from 196,262 tons/day in the previous year. did Accordingly, through the “Announcement on the Use and Mandatory Amount of Recycled Aggregate Recycled Products (2017, Ministry of Environment)”, the Ministry of Environment orders recycled aggregates that can be recycled by sorting them out of construction wastes from the state, local governments, and public institutions. It is stipulated that it must be used for construction work.

However, despite the recent efforts to separate and dismantle construction sites, sorting combustible waste such as waste wood, waste plastic, and waste vinyl from waste concrete remains an unsolved problem. Therefore, at present, lightweight foreign substances contained in waste concrete are removed by methods such as manual screening, wind power screening, and wet screening before and after the first and second crushing processes for waste concrete.

However, combustible wastes that have not been sorted due to problems such as lack of manpower, lack of wind pressure during wind power sorting, precipitation due to moisture adsorption, etc. are re-entered into the repeated crushing and grinding processes of the 3rd and 4th crushing processes, so they are pulverized into smaller pieces. Eventually, it is mixed as a small foreign substance in the recycled aggregate, causing problems such as unstable recycled aggregate quality and reduced productivity.

As a method for separating and sorting small foreign substances, wet sorting is used to separate foreign substances floating on water using washing water, but there is a problem in that a large amount of wastewater and sludge are generated, causing soil and water pollution. In addition, since the washing water freezes in winter, it becomes difficult to separate and sort foreign substances, so there is a limit to the operation of the equipment in all seasons.

On the other hand, wind power sorting using wind is a method of separating and sorting combustible waste contained in recycled aggregate by using the weight difference of foreign substances by generating wind from a blower. In this regard, there are a number of research cases on the wind power sorting method using a cyclone. However, the cyclone method as described above has a problem in that aggregate with a low specific gravity can be separated along with foreign substances and fine dust is scattered by blowing. In order to solve this problem, research on a closed multi-stage blowing method is being conducted, but it is not applied to the existing recycled aggregate screening process due to the difficulty of miniaturizing the equipment.

Patent No. 10-2029736 "vibration-suction sorting device for foreign substances in aggregate" is "a vibration supply means for sending aggregate supplied to a slope downward and causing vertical vibration is provided, Vibration screening feeder that allows foreign substances to be discharged in a state separated by a specific gravity difference; A conveyor belt for receiving the aggregate discharged from the vibration sorting feeder and transporting it in one direction; a suction device installed above the point where the aggregate is discharged from the vibration sorting feeder and providing a suction force introduced through a suction pump; and a screen belt installed along a track formed around the suction device and advancing in a direction opposite to the transport direction of the conveyor belt. Including, the suction force provided by the suction device is applied to the foreign matter in the discharged aggregate through the screen belt, and the foreign material is adsorbed to the screen belt and is configured to be transported and discharged in a direction opposite to the conveying direction of the aggregate A vibration-suction sorting device for internal foreign substances” is provided.

Patent No. 10-2029736 as described above can efficiently sort out lightweight foreign substances of various types and properties from aggregates by a simple device configuration for providing vibration and suction power.

However, conventional conveyor belts for transporting construction wastes have a U-shaped cross section to prevent the wastes from scattering and escaping due to vibration and wind during transportation. In the case of the belt, there was a problem in that the suction force of the suction device was not uniformly transmitted to the U-shaped conveyor belt because the lower end was configured horizontally.

In addition, since a coupling member with a plurality of rotating shafts and a screen belt must be provided to form a circular orbit, the need for a device capable of continuously transporting the sorting net while having a simpler structure has emerged. In addition, since the foreign matter on the lower part of the aggregate is not sucked in by the weight of the aggregate when the suction force of the suction device is transmitted, a study on how to remove the foreign matter located on the lower part of the aggregate must be conducted together.

1. Registered Patent No. 10-2029736 "Vibration-suction sorting device for foreign matter in aggregate" 2. Registered Patent No. 10-2049250 "Vibration-self-adsorption-adsorption sorting device for foreign matter in aggregate" 3. Registered Patent No. 10-0759932 "Foreign matter sorting device for construction waste" 4. Registered Patent No. 10-0756420 "Apparatus and method for sorting and separating aggregates and foreign substances from construction waste"

The present invention permeates the suction force through the separation network of the continuously rotating screen drum, so that foreign substances such as paper, wood chips, styrofoam, and vinyl, which are transported while being mixed with aggregate, are sequentially adsorbed to the separation network of a pair of screen drums Its purpose is to provide a multi-drum type foreign matter adsorption sorting device that sorts in a way.

In addition, another object of the present invention is to provide a technical configuration capable of increasing the separation efficiency of foreign substances, including an inverter installed between the pair of screen drums to additionally separate foreign substances spread at the bottom of the aggregate. .

In order to solve the above problems, the present invention includes "disc-shaped first and second side plates disposed on both sides and a separation network surrounding the first and second side plates, and each of the first side plates is opposed to each other" ) a pair of screen drums arranged spaced apart from each other; Hoods disposed inside the pair of screen drums and open toward the conveyor belt transporting the aggregate to provide suction force generated by the suction fan to the conveyor belt; and a rotating shaft coupled to the center of the first side plate of each of the pair of screen drums to simultaneously pivot the pair of screen drums by externally applied power. Including, wherein the second side plate is formed with an open hole, and the suction force provided to the hood is applied to the foreign matter in the aggregate conveyed to the conveyor belt through the separation network, so that the foreign matter is adsorbed to the separation network. It provides a multi-drum type foreign matter adsorption and sorting device” characterized in that it is configured to be transported along the rotational direction of the screen drum and discharged in a section where the suction force is not provided.

In addition, it may be configured to further include; a support frame provided to support the rotation shaft.

In addition, the suction fan may be directly connected to the hood and disposed inside the screen drum.

In addition, a cantilever arm having one end fixed to the outside of the screen drum and the other end inserted into the screen drum through an open hole of the second side plate to support the hood; It may be configured to further include.

In addition, as a vertical member, one or more inverters provided between the pair of screen drums and disposed so that the lower end is close to the conveyor belt; Further comprising, the inverter may be arranged so as to be orthogonal to the upper surface of the conveyor belt so that the lower end collides with the aggregate according to the movement of the conveyor belt, thereby inverting the phase of the aggregate.

1. By inverting the aggregate between a pair of screen drums, it is possible to remove foreign substances on the bottom of the aggregate that were not removed in the previous screen drum.

2. Since screen drums composed of the same weight are coupled to both sides around the middle of the rotating shaft and the load is evenly distributed on both sides, a member for separate weight distribution such as a counter weight is not required.

3. The screen drum of the present invention has a simple structure compared to a circular orbit type screen, so the production cost can be lowered, and the risk of failure is low, so maintenance costs are reduced.

4. The hood and section fan placed inside the screen drum are directly connected to each other, so there is no need to install a separate flow path, so there is no interference with other facilities, it occupies a small installation area, the equipment configuration is simple, and there is no interference with other facilities. It can be easily installed in the required quantity at a desired point among waste intermediate treatment facilities.

5. When foreign substances are attached and transported along the outer periphery of the cylindrical screen drum and discharged in a section where no suction force is provided, the foreign substances can be separated and discharged more smoothly by the centrifugal force generated by the rotation of the screen drum.

6. A return interception net is provided on the outer edge of the scrim drum separation net to facilitate discharge by effectively shaking off foreign substances adhering to the separation net and moving by static electricity and excess force.

7. Since the separation network can be replaced by module, only the damaged separation network module can be quickly replaced, making maintenance easy.

[Figure 1] is a perspective view of one embodiment of the multi-drum type foreign matter adsorption and sorting device of the present invention.
[Fig. 2] is a conceptual diagram of a process in which foreign substances are moved while being adsorbed to the separation net of the screen drum and separated by centrifugal force in a section where no suction force is provided.
[Figure 3] is a conceptual diagram showing the state of aggregate and foreign matter when aggregate sequentially passes through a pair of screen drums and an inverter disposed therebetween.
[Figure 4] shows the shape according to the type of inverter.
[Figure 5] is an enlarged embodiment of the power transmission unit and bearing housing of the multi-drum type foreign matter adsorption and sorting device of the present invention.
[Fig. 6] shows a state in which a support frame supports a rotating shaft connecting a pair of screen drums.
[Figure 7] shows a state in which the separation network of the present invention is installed and detached in a modular structure.

Hereinafter, the present invention will be described in detail in conjunction with the accompanying drawings.

As shown in [Figs. 1] to [Fig. 3], the present invention surrounds the first and second side plates 111 and 112 of the disk shape disposed on both sides and the first and second side plates 111 and 112. A pair of screen drums 100 including a winding separation net 130 and disposed spaced apart from each other so that each of the first side plates 111 face each other; Each is disposed inside the pair of screen drums 100 and is open toward the conveyor belt 10 transporting the aggregate 1, and the suction force generated by the suction fan 300 is provided to the conveyor belt 10 hood 200; and a rotation shaft 400 coupled to the center of each of the first side plates 111 of the pair of screen drums 100 and simultaneously pivoting the pair of screen drums 100 by externally applied power; Including, the second side plate 112 is formed with an open hole 120, and the suction force provided to the hood 200 is transferred to the conveyor belt 10 through the separation net 130 (1) ) is added to the foreign matter 2 in the ), and the foreign matter 2 is transferred along the rotational direction of the screen drum 100 in a state of being adsorbed to the separation net 130, and discharged in a section where the suction force is not provided It provides a multi-drum type foreign matter adsorption sorting device, characterized in that configured.

Hereinafter, in describing the embodiment of the present invention, the axial direction of the rotating shaft 400 disposed parallel to the conveying direction of the conveyor belt 10 is referred to as the axial direction of the screen drum 100, and is orthogonal to the axial direction The direction is referred to as the width direction. In addition, the direction in which the first and second side plates 111 and 112 are located in the screen drum 100 is referred to as a side or a side.

The screen drum 100 includes disk-shaped first and second side plates 111 and 112 disposed on both sides and a separation net 130 surrounding the first and second side plates 111 and 112.

The screen drum 100 is installed so that its lower end is spaced apart from the conveyor belt 10 at a predetermined interval. In addition, the rotational axis of the screen drum 100 is disposed parallel to the traveling direction of the conveyor belt 10.

Therefore, in the case of showing a cross-sectional view of the screen drum 100 and the conveyor belt 10 cut perpendicularly to the moving direction of the aggregate, as shown in [Fig. 2], the conveyor belt having a U-shaped cross section Corresponding to the cross-sectional shape of (10), since the lower end of the screen drum 100 having a circular cross section is disposed closely, the upper surface of the conveyor belt 10 and the lower end of the screen drum 100 maintain a constant interval as a whole. can be spaced apart. When configured in the drum shape as described above, it is possible to provide a uniform suction force to the upper surface of the conveyor belt 10 compared to the case where the separation net is formed flat.

The screen drum 100 is formed in a drum shape having a receiving space therein, and both sides are composed of first and second side plates 111 and 112 in a disk shape, and between the first and second side plates 111 and 112 It may be configured to further include a connection frame 140 connecting the.

The connection frame 140 is arranged at regular intervals along the circumference of the first and second side plates 111 and 112 disposed facing each other, and has a cylindrical structure between the first and second side plates 111 and 112. It can be installed to form a

In addition, when the connection frame 140 is installed at a predetermined interval in the direction of the rotation shaft 400 around the circumference of the first and second side plates 111 and 112 as described above, it is easy to install the return blocking network 150 to be described later. do. When the return blocking network 150 is manufactured and installed at the same height as the spaced length, the return blocking network 150 does not protrude outward from the first and second side plates 111 and 112 and is arranged externally. It covers the side surface of the return blocking network 150 to prevent foreign matter from being scattered to the side and preventing the return blocking network 150 from being jammed or damaged.

The first and second side plates 111 and 112 are formed in a disk shape having a constant thickness and are provided at both side ends of the screen drum 100 . Since the first and second side plates 111 and 112 are coupled to both ends of the connecting frame 140 and rotated for a long time by the rotating shaft 400, steel or alloy steel having high rigidity is prevented from deformation and destruction due to torsional moment. It is preferable to be made of

The second side plate 112 has an open hole 120 so as to communicate with the inside of the screen drum 100, and the first side plate 111 may be formed as a disc-shaped panel that is partially open or not open. In the non-opened first side plate 111 , the rotary shaft 400 may be directly coupled to the central portion of the first side plate 111 . At this time, since the first side plate 111 rotates together with the rotating shaft 400, a reinforcing member is added to the portion where the first side plate 111 and the rotating shaft 400 are coupled to reinforce or the first side plate 111 Durability may be increased by additionally stacking and bonding a reinforcing plate on the outside.

Alternatively, the first side plate 111 may be formed in a wheel shape partially opened through spokes. At this time, the rotational shaft 400 may be coupled to the center of the radially extended wheel. In this way, when the first side plate 111 is formed in the shape of a wheel, dust and harmful gases inside the screen drum 100 can be easily discharged.

The separation network 130 may be composed of a mesh network or a perforated network. The mesh network may be configured by weaving metal yarns in the form of a lozenge network or a lattice network. The perforated network may be configured by forming a plurality of perforated holes in a metal plate.

The hood 200 is open toward the conveyor belt 10 that transports the aggregate 1, and the suction force generated by the driving of the suction fan 300 is transferred along the conveyor belt 10. ) is provided. The suction force is applied to the aggregate 1 transferred to the conveyor belt 10 through the separation network 130 of the screen drum 100 rotating in the direction perpendicular to the moving direction of the conveyor belt 10. In addition, the suction force is insufficient to suck up the aggregate 1, and must be provided with sufficient force to suck up the foreign matter 2 such as paper, wood chips, Styrofoam, and vinyl. To this end, the suction fan 300 The rotational speed, the distance between the hood 200 and the conveyor belt 10, etc. must be appropriately adjusted. Accordingly, foreign substances 2 such as paper, wood chips, styrofoam, and vinyl mixed in the aggregate 1 can be sucked toward the hood 200 . Accordingly, it is preferable to open the entire lower surface of the hood 200 to widen the range in which the suction force is provided to correspond to the width of the conveyor belt 10.

[Fig. 2] shows the process in which the foreign matter 2 moves while adsorbed to the separation net 130 of the screen drum 100 and is separated by centrifugal force in a section where no suction force is provided.

As shown in [Fig. 2], the conveyor belt 10 for transporting the aggregate 1 is configured with a U-shaped cross section in order to prevent the separation of the aggregate 1 during transport.

Accordingly, the lower end of the hood 200 may be formed in an arc shape to provide a uniform suction force to the upper surface of the conveyor belt 10 having a U-shaped cross section. The lower end of the screen drum 100 and the cross section of the conveyor belt 10 are formed in a U shape and can be spaced apart from each other while maintaining a regular distance, and the hood 200 disposed inside the screen drum 100 is also formed at the lower end. It may be formed in an arc shape.

Therefore, the lower end of the screen drum 100 and the hood 200 and the cross section of the conveyor belt 10 are all formed in a U shape to uniformly provide a suction force to the upper surface of the conveyor belt 10. .

Conventional adsorption sorters have difficulty providing uniform suction to the upper surface of the conveyor belt 10 formed in a U-shaped cross section with the lower end of the hood formed horizontally, but the screen drum 100 of the present invention has a U-shaped cross section. There is an advantage in that a suction force can be uniformly provided to the formed conveyor belt 10.

The rotating shaft 400 may be coupled to the center of the first side plate 111 and rotated by externally applied power. The rotary shaft 400 is installed to pivot the screen drum 100, and the rotary shaft 400 is preferably formed of a bar-shaped steel member to suppress torsional moment and increase durability.

The end of the rotating shaft 400 is coupled to the center of the first side plate 111 of the screen drum 100, or the rotating shaft 400 is attached to the screen drum 100 to more stably support the load. It can be combined in a state where a certain length is inserted into the inside of the drum 100.

The pair of screen drums 100 may be spaced apart from each other so that the respective first side plates 111 face each other. As described above, the first side plates 111 of the pair of screen drums 100 are disposed to face each other, and both ends of the rotating shaft 400 are the first side plates of the pair of screen drums 100 ( 111) may be combined with each other.

Therefore, since the screen drums 100 of the same weight are disposed at both ends of the rotating shaft 400, the weight of both sides is the same around the middle of the rotating shaft 400, so that neither tilting to one side nor sagging occurs. . Therefore, since the load is evenly distributed on both sides, a separate member for weight distribution such as a counter weight is not required.

The sorting device of the present invention may further include a support frame 500 provided to support the rotating shaft 400. Since the pair of screen drums 100 are coupled to and supported by the rotational shaft 400, most of the load of the screen drum 100 is supported by the rotational shaft 400, and the rotational shaft 400 only on the first side plate 111 side. ) is connected, so the screen drum 100 is coupled to the rotating shaft 400 in a cantilever structure.

The support frame 500 may be provided at a stop of the rotation shaft 400 as shown in [FIG. 1] or [FIG. 3] to support the rotation shaft 400. When the support frame 500 is provided at a stop of the rotation shaft 400, the load can be uniformly distributed to both sides of the rotation shaft 400 with the support frame 500 as the center.

In addition, as shown in [FIG. 5] or [FIG. 6], the support frame 500 is a polyhedral frame such as a 'ㅁ' shape or a 'C' shape to support the rotating shaft 400 along the axial direction. can be configured.

In this case, the support frame 500 may further include a bearing housing 510 provided at an upper end of the support frame 500 through which the rotating shaft 400 is inserted.

The bearing housing 510 is configured to allow the rotation shaft 400 to rotate smoothly and to support a load so that a bearing mounted therein can maintain a stable state. The bearing may contact along an outer circumference of the rotation shaft 400 to reduce frictional force of the rotation shaft 400 and support a load applied to the rotation shaft 400 .

One or more bearing housings 510 may be provided at an upper end of the support frame 500 according to a load applied to the rotating shaft 400 .

As shown in [Figure 5] and [Figure 6], the bearing housing 510 prevents deflection and bending of the rotation shaft 400 when provided one by one on both sides of the rotation shaft 400, and stably both sides It is desirable to be able to support it.

When the rotational shaft 400 has a long span, bearing housings 510 are installed on both sides and the middle of the rotational shaft 400 to stably support the rotational shaft 400 in the axial direction.

The rotary shaft 400 may further include a power transmission unit 410 that transmits externally applied power. The rotating shaft 400 transmits the rotational force transmitted through the power transmission unit 410 to the pair of screen drums 100 so that the pair of screen drums 100 can rotate simultaneously.

The power transmission unit 410 may be of a chain type, a belt type, a gear type, etc. to transmit rotational force generated from a rotation motor.

As shown in [Figs. 5] and [6], the chain-type power transmission unit 410 consists of a power transmission sprocket formed along the outer periphery of the rotating shaft 400 and a power transmission chain that transmits rotational force applied from the outside. It can be.

As shown in [FIG. 1] and [FIG. 3], the belt-type power transmission unit 410 may be composed of a pulley formed along the outer periphery of the rotating shaft 400 and a power transmission belt. At this time, in order to prevent slipping of the power transmission belt, the contact surface between the pulley and the power transmission belt may increase frictional force or form a groove to prevent slipping.

The gear-type power transmission unit 410 may be composed of a gear blade formed along the outer periphery of the rotating shaft 400 and a gear that transmits rotational force applied from the outside.

The power transmission unit 410 may be installed anywhere in the axial direction of the rotating shaft 400 .

As described above, the sorting device of the present invention is economical because it can simultaneously rotate a pair of screen drums 100 through a single power transmission unit 410.

In the present invention, the foreign matter 2 is not sucked into the hood 200, but is adsorbed to the separation net 130 of the screen drum 100 and moves for a certain section, and then in the section where the suction force is not provided. falls and is ejected.

In more detail, the suction force provided to the hood 200 is applied to the foreign matter 2 in the aggregate 1 transported to the conveyor belt 10 through the separation net 130, so that the foreign matter 2 is separated from the separation net It may be configured to be transported along the rotational direction of the screen drum 100 in a state of adsorption to the 130 and discharged in a section where the suction force is not provided.

As shown in [FIG. 2], the hood 200 provides a suction force from one end of the U-shaped conveyor belt to the other, and as the screen drum 100 rotates, the hood 200 is attached to the separation network 130. The foreign matter 2 is transferred along the rotational direction of the screen drum 100 while being attached to the separation net 130 due to the suction force provided by the hood 200 . Thereafter, when the foreign matter 2 reaches the section where the suction force is not provided, the foreign matter 2 is separated from the separation net 130 and discharged. In this case, the foreign matter 2 may be attached without being separated from the separation net 130 due to the residual force of the suction force or static electricity. The screen drum 100 of the present invention is configured to continuously rotate, so that the foreign matter 2 is more easily discharged by the centrifugal force according to the rotation of the screen drum 100. In addition, when the foreign matter 2 falls freely, it may not be accurately seated in the foreign matter outlet (not shown), but in the present invention, the foreign matter 2 is moved by the centrifugal force caused by the rotation of the screen drum 100 At the same time as being discharged, the foreign matter 2 can be discharged more stably because it scatters at a certain height and settles in the foreign matter outlet.

As shown in FIG. 2 , the lower end of the hood 200 may have an extension portion extending a predetermined length in the discharge direction of the foreign matter 2 . When it is necessary to stably induce the foreign matter 2 to the foreign matter 2 discharge port by inducing the foreign matter 2 to a certain height, the lower end of the hood 200 may be extended to a certain length to provide a suction force. In addition, in order to stably separate the foreign substances 2 when the foreign substances 2 reach the discharge section, the extension of the hood 200 gradually reduces the suction force toward the discharge section so that the foreign substances 2 are discharged. can be easily configured.

As shown in [FIG. 1] to [FIG. 3], the suction fan 300 is directly connected to the hood 200 and may be disposed inside the screen drum 100.

In addition, one end is fixed to the outside of the screen drum 100 and the other end is introduced into the screen drum 100 through the open hole of the second side plate 112 to support the hood 200. Cantilever Arm (600); It may be configured to further include.

As described above, when the suction fan 300 and the hood 200 are configured to be directly connected, there is no need to install a separate flow path for discharging the air sucked from the suction fan 300, and inside the screen drum 100 Directly inhaled air can be discharged, so there is no interference with other facilities due to flow paths. Since there is no interference with other facilities, it can be easily installed in the required quantity at a desired point among construction waste intermediate treatment facilities. At this time, the inhaled air may be discharged to the outside through the separation net 130 or the open hole 120.

At this time, the suction fan 300 and the hood 200 are disposed spaced apart in the air in the inner space of the screen drum 100 . Therefore, one end is fixed to the outside of the screen drum 100 and the other end is introduced into the screen drum 100 through the open hole of the second side plate 112 to support the hood 200. cantilever arm 600; It may be configured to further include. Since the suction fan 300 is loaded on the top of the hood 200, when the cantilever arm 600 supports the hood 200, the suction fan 300 can also be supported at the same time.

In order to stably support the loads of the hood 200 and the suction fan 300, one end of the cantilever arm 600 may be fixed to a stable and highly durable structure such as an external fixed frame, post, or wall.

In addition, on the outer edge of the separation net 130, a plurality of return blocking nets 150 are provided at equal intervals, the upper end of which is installed in the axial direction to the separation net 130 and the lower end of which is configured not to touch the conveyor belt 10. It can be. At this time, the upper end of the separation network 130 connected to the separation network 130 may be rotatably coupled around the connection portion in the axial direction to accelerate the separation of the foreign matter 2 by shaking.

The return blocking network 150 may be composed of a network having the same material and structure as the separation network 130. In addition, the return blocking net 150 may be formed by reinforcing an edge part with an iron frame or made of a flexible material.

By additionally configuring the return blocking network 150, the foreign matter 2 is prevented from randomly scattering to the outside of the screen drum 100 by the suction force, and the centrifugal force, inertia and gravity in the discharge section of the foreign matter 2 The shaking of the return blocking net 150 by the above helps to discharge the foreign matter 2, and can contribute to the discharge of the foreign matter 2 by falling to an appropriate position. In addition, the return blocking network 150 can prevent the foreign matter 2 from being returned to the separation network 130 due to static electricity during discharge.

The sorting device of the present invention is a vertical member, provided between the pair of screen drums 100, and one or more inverters 700 disposed so that the lower end is close to the conveyor belt 10 ); Further, the inverter is arranged so as to be orthogonal to the upper surface of the conveyor belt 10, so that the lower end collides with the aggregate 1 according to the movement of the conveyor belt 10, thereby inverting the phase of the aggregate 1 It can be.

The inverter is a longitudinal member in the vertical direction, and is provided between the pair of screen drums 100, and may be disposed so that its lower end is close to the conveyor belt 10.

3 is a conceptual diagram showing the state of aggregate 1 and foreign matter 2 when aggregate 1 sequentially passes through a pair of screen drums 100 and an inverter 700 disposed therebetween to be.

Hereinafter, a process in which the sorting device of the present invention removes the foreign matter 2 from the aggregate 1 will be described in detail with reference to FIG. 3 . At this time, in the description of the drawing of [Fig. 3], the screen drum 100 in which the sorting operation is performed first according to the moving direction of the aggregate 1 among the pair of screen drums 100 is called the front screen drum 100, , The screen drum 100 in which post-work is performed is called a rear screen drum 100'.

As shown in [Fig. 3], while the aggregate 1 passes through the lower part of the front screen drum 100, most foreign substances 2 are sucked and sorted out. At this time, the foreign matter 2 pressed on the lower end of the aggregate 1 may not be sorted even by the suction force transmitted from the front screen drum 100 due to the load of the aggregate 1. Aggregate 1 passing through the front screen drum 100 collides with the lower part of the inverter 700 while passing through the section where the inverter 700 is installed, bounces or rolls, and the phase is reversed, and at the same time, the phase of the aggregate 1 The foreign matter 2 pressed at the bottom is freed from the influence of the aggregate 1 and becomes a state in which it can receive a suction force. Finally, by suctioning and sorting the foreign matter (2) that has escaped the influence of the aggregate (1) by the reverser (700) in the rear screen drum (100'), the foreign matter (2) can be more precisely sorted out, and the foreign matter (2) ) can improve the removal performance.

The inverter 700 may be installed singular or plural.

In addition, the inverter 700 may be formed in various shapes to facilitate inverting the phase of the aggregate 1 .

[Figure 4] shows various types of inverters 700, (a) is formed in a wedge shape whose lower surface extends along the moving direction of the flat conveyor belt 10, (b) is the lower Wings are attached to it to be formed so that a single wide range of reversing work can be performed, and (c) is formed so that the height is gradually increased along the traveling direction of the aggregate (1). It is configured to increase the reversal effect of the aggregate (1) by bouncing.

The present invention is installed in contact with the outer periphery of the second side plate 112, rotates in engagement with the second side plate 112, the auxiliary wheel 800 configured to support the load of the screen; It may be configured to further include.

As described above, the screen drum 100 of the present invention is composed of a cantilever structure coupled to the rotation shaft 400 and the first side plate 111 and installed spaced apart in the air, so that the rotation shaft 400 A bending moment may be strongly applied to the free end (periphery of the second side plate) that is not coupled with.

Therefore, the load applied to the screen drum 100 is distributed by installing the auxiliary wheel 800 at the lower part of the second side plate 112, opposite the coupling part between the rotary shaft 400 and the screen drum 100. It can be. In addition, the auxiliary wheel 800 may reduce the load applied to the rotating shaft 400 .

As shown in [FIG. 2], the auxiliary wheel 800 may be disposed on the lower front side and rear side of the second side plate 112, respectively. Since this is arranged in a triangular shape when the rotation center of the screen drum 100 and the auxiliary wheels 800 on both sides are connected to each other, it is preferable to stably distribute the load.

The auxiliary wheel 800 can be applied to any rotational structure capable of engaging with the second side plate 112 and rotating, such as a roller, a gear, or a sprocket.

The auxiliary wheel 800 is not coupled to a separate auxiliary power transmission unit, but engages with the rotation of the screen drum 100 to serve to distribute the load or is coupled to the auxiliary power transmission unit to form the second side plate 112 It can be operated by adjusting the rotational speed according to the rotation ratio in order to rotate smoothly in engagement with the rotation of the.

In addition, the separation network 130 may be composed of a combination of separation network modules 131 partitioned into a certain size.

7 shows a state in which the separation network 130 of the present invention is installed in the coupling structure of the separation network module 131 and is detached.

The separation network 130 may be configured by combining separation network modules 131 partitioned to a certain size, and the size of the module may be determined based on the division formed between each connection frame 140.

As described above, when the separation network 130 is composed of the combination of the separation network modules 131, even when a part of the separation network 130 is damaged, the entire separation network 130 is not replaced, and the damaged separation network module 131 ), it is possible to replace quickly, saves manpower and repair costs, and facilitates maintenance.

In the above, the present invention was examined in detail with specific examples. However, the present invention is not limited by the above embodiments and can be modified and modified within the scope without departing from the gist of the present invention. Accordingly, the claims of the present invention include such modifications and variations.

1: aggregate 2: foreign matter
10: conveyor belt
100: screen drum
110: side plate
111: first side plate 112: second side plate
120: open hole
130: separation network
131: separation network module
140: connection frame 150: return blocking network
200: hood
300: suction fan
400: axis of rotation
410: power transmission unit
500: support frame
510: bearing housing
600: Cantilever Arm
700: reverser
800: auxiliary wheel

Claims (5)

Disc-shaped first and second side plates 111 and 112 and the first and second side plates 111 and 112 disposed on both sides of the conveyor belt 10 for transporting the aggregate 1 in one direction and spaced apart from each other A pair of screen drums (100) including a separation network (130) surrounding and disposed spaced apart from each other so that each of the first side plates (111) face each other;
Hoods 200 disposed inside the pair of screen drums 100 and open toward the conveyor belt 10 to provide suction force generated by the suction fan 300 to the conveyor belt 10; and
a rotational shaft 400 coupled to the center of each first side plate 111 of the pair of screen drums 100 and simultaneously pivoting the pair of screen drums 100 by externally applied power; Including,
The second side plate 112 is formed with an open hole 120,
The suction force provided to the hood 200 is applied to the foreign matter 2 in the aggregate 1 transported to the conveyor belt 10 through the separation net 130, and the foreign matter 2 is transferred to the separation net 130 The multi-drum type foreign matter adsorption and sorting device, characterized in that it is configured to be transported along the rotational direction of the screen drum 100 in a state of being adsorbed to and discharged in a section where the suction force is not provided.
In paragraph 1,
a support frame 500 provided to support the rotating shaft 400; Multi-drum type foreign matter adsorption sorting device, characterized in that configured to further include.
In paragraph 1,
The suction fan (300) is directly connected to the hood (200) and is disposed inside the screen drum (100).
In paragraph 3,
One end is fixed to the outside of the screen drum 100, and the other end is introduced into the screen drum 100 through the open hole 120 of the second side plate 112 to support the hood 200. a cantilever arm (600); Multi-drum type foreign matter adsorption sorting device, characterized in that configured to further include.
In any one of claims 1 to 4,
As a vertical member, one or more inverters 700 provided between the plurality of screen drums 100 and disposed so that the lower end is close to the conveyor belt 10; Including more,
The inverter 700 is arranged to be orthogonal to the upper surface of the conveyor belt 10 and is configured to reverse the phase of the aggregate 1 by colliding with the lower end of the aggregate 1 according to the movement of the conveyor belt 10 Characterized by a multi-drum type foreign matter adsorption sorting device.

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