KR20220034063A - Drum-type foreign substance adsorption screening device - Google Patents

Abstract

The present invention relates to a sorting device which comprises a screen drum (100) having a hood (200) disposed therein so as to uniformly provide a suction force to a conveyor belt (10) having a U-shaped cross-section to remove lightweight foreign matters such as paper, wood chips, plastic chips, vinyl, and Styrofoam in the process of producing recycled aggregate by intermediate treatment of construction waste. The present invention comprises: a screen drum (100) comprising first and second side plates (110), (120) disposed on both sides and having a plate shape, and a separation net (130) surrounding the first and second side plates (110), (120); a hood (200) disposed inside the screen drum (100) and open toward the conveyor belt (10) transporting an aggregate (1) to provide suction force generated by a suction fan (400) to the conveyor belt; and a rotating shaft (500) coupled to a center of the first side plate (110) and rotating by externally applied power. The present invention relates to a drum-type foreign matter absorption device, wherein the suction force provided to the hood (200) is applied to a foreign matter (2) in the aggregate (1) transferred to the conveyor belt (10) through the separation net (130), and wherein the foreign matter (2) is transported along a rotational direction of the screen drum (100) in a state of being adsorbed to the separation net (130) to be discharged in a section where the suction force is not provided.

Description

Drum-type foreign substance adsorption screening device

The present invention is configured to include a screen drum having a hood disposed therein, which is manufactured to provide a uniform suction force to a conveyor belt having a U-shaped cross section, and intermediate treatment of construction waste to produce recycled aggregate paper in the process , to a sorting device that removes lightweight foreign substances such as wood chips, plastic pieces, vinyl, and Styrofoam.

According to the National Waste Generation and Treatment Status Report (2019, Ministry of Environment, Korea Environment Corporation), construction waste accounts for 48.1% of total waste, and the amount of construction waste generated in 2018 was 206,951 tons/day, up 5.4% from 196,262 tons/day in the previous year did Accordingly, the Ministry of Environment, through the “Notice on the Usage and Mandatory Use of Recycled Aggregate Recycling Products (2017, Ministry of Environment)”, is to supply recycled aggregate that can be selected and recycled from construction waste by the state, local governments, and public institutions. It was stipulated to be mandatory for construction work.

However, in spite of the recent efforts to separate and dismantle the construction site, sorting combustible wastes such as waste wood, plastic waste, and waste vinyl into waste concrete still remains an unresolved problem. Therefore, at present, lightweight foreign substances contained in waste concrete are removed by methods such as manpower sorting, wind power sorting, and wet sorting before and after the first and second crushing processes for waste concrete.

However, the unsorted combustible wastes due to problems such as lack of manpower, insufficient air pressure during wind screening, and precipitation due to moisture adsorption are re-injected into the repeated crushing/grinding processes of the 3rd and 4th crushing processes to make them smaller. In the end, it is mixed with small foreign substances in the recycled aggregate, causing problems such as instability of recycled aggregate quality and lowering of productivity.

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

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

Patent No. 10-2029736 "Vibration-suction sorting device for foreign substances in aggregate" is "a device that sends down the aggregate supplied to the inclined surface in the downward direction, and is provided with a vibration supply means that induces up-and-down vibration. a vibration sorting feeder that allows foreign substances to be discharged in a separated state by a specific gravity difference; a conveyor belt for receiving aggregate discharged from the vibration sorting feeder and transporting it in one direction; a suction device installed above the point at which aggregates are 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 running in a direction opposite to the conveying direction of the conveyor belt. It comprises, wherein the suction force provided by the suction device is applied to the foreign material in the discharged aggregate through the screen belt, and the foreign material is transported and discharged in the opposite direction to the conveying direction of the aggregate in a state in which the foreign material is adsorbed to the screen belt. Vibration-suction sorting device for foreign substances in the interior” is provided.

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

However, in the conventional conveyor belt for transporting construction waste, the cross section of the conveyor belt is formed in a U-shape to prevent the waste from being scattered by vibration and wind during transport, but the screen moves along the existing circulation track. In the case of the belt, there was a problem in that the lower end was horizontally configured, so that the suction power of the suction device was not uniformly transmitted to the U-shaped conveyor belt.

In addition, since a coupling member with a plurality of rotating shafts and a screen belt must be provided to form a circulation track, there is a need for a device capable of continuously transferring a classification network while having a simpler structure.

1. Registered Patent 10-2029736 "Vibration-suction sorting device for foreign substances in aggregate" 2. Registered Patent 10-2049250 "Vibration-Magnetic-Adsorption Sorting Device of Foreign Matter in Aggregate" 3. Registered Patent 10-0759932 "Construction waste sorting device" 4. Registered Patent 10-0756420 "A device and method for sorting and separating aggregates and foreign substances from construction waste"

The present invention allows the suction force to pass through the separation network of the screen drum that continuously rotates, so that foreign substances such as paper, wood chips, Styrofoam, vinyl, etc., which are mixed with aggregate, are adsorbed to the separation network of the screen drum. An object of the present invention is to provide a drum-type foreign material adsorption and sorting device.

In addition, the present invention can apply the suction force evenly in response to the U-shaped conveyor belt, and by applying the screen drum configured to proceed with the sorting operation through continuous rotation, installation and maintenance are easy, and the technology configuration to increase the foreign material separation efficiency There is another purpose to provide together.

The present invention for solving the above problems, "a screen drum including a separation net surrounding the first and second side plates of the disk-shaped plate disposed on both sides and the first and second side plates; a hood disposed inside the screen drum and opened toward the conveyor belt for transporting aggregates to provide a suction force generated by the suction fan to the conveyor belt; and a rotation shaft coupled to the center of the first side plate and axially rotated by externally applied power. Including, the suction force provided to the hood is applied to the foreign material in the aggregate transferred to the conveyor belt through the separation net, and the foreign material is transferred along the rotational direction of the screen drum in a state in which the foreign material is adsorbed to the separation net, It provides a drum-type foreign material adsorption sorting device, characterized in that it is configured to be discharged in a section where suction power is not provided.

The screen drum may be disposed parallel to the traveling direction of the conveyor belt, and the hood has an arc-shaped lower end to provide a uniform suction force to the upper surface of the conveyor belt having a U-shaped cross section. It can be configured to

In addition, the screen drum may include a connection frame connecting the first and second side plates and supporting the separation network; It may be configured to further include.

In addition, the present invention is a counter weight (Counter Weight) for applying a load in a downward direction perpendicular to the axis of rotation; It may be configured to further include.

In addition, the suction pan may be disposed inside or outside the screen drum.

In addition, the present invention is installed so as to contact the outer periphery of the second side plate to rotate in engagement with the second side plate, the auxiliary wheel (wheel) configured to support the load of the screen; may further include.

In addition, the separation network may be composed of a combination of separation network modules partitioned in a predetermined size.

1. The drum-type foreign material adsorption and sorting device of the present invention has a simple structure compared to a circular orbital screen by applying a drum-type screen, and thus the production cost can be lowered, and the maintenance cost is reduced due to the low risk of failure. there is.

2. The lower end of the hood disposed inside the screen drum is formed in an arc shape, so that the suction force can be uniformly provided to the upper surface of the U-shaped conveyor belt.

3. The drum-type foreign material adsorption and sorting device of the present invention is configured to provide suction power by installing a hood inside the drum-type screen drum. It can be easily installed at any point in the middle and in the required quantity.

4. When foreign substances are attached and transported along the outer periphery of the cylindrical screen drum and are discharged in a section where suction force is not provided, the foreign substances can be separated and discharged more smoothly by centrifugal force caused by the rotation of the screen drum.

5. By providing a return blocking net on the outer edge of the scrim drum separation net, it is possible to effectively shake off foreign substances moving attached to the separation net by static electricity and excess force to facilitate discharge.

6. Since the separation network can be replaced for each module, only the damaged separation network module can be replaced quickly, making maintenance easy.

[FIG. 1] is a perspective view of an embodiment of a drum-type foreign material adsorption sorting device of the present invention.
[Fig. 2] is a conceptual diagram of a process in which foreign substances are moved in a state of being adsorbed to the separation network of the screen drum and separated by centrifugal force in a section where suction force is not provided.
3 (a) shows a state in which the suction fan is disposed inside the screen drum, and (b) shows a state in which the suction fan is disposed outside the screen drum.
[FIG. 4] shows an embodiment in which a roller-type auxiliary wheel rotating in engagement with the second side plate is installed.
[Fig. 5] is an embodiment of an auxiliary wheel, (a) is an auxiliary gear is installed, (b) is an auxiliary sprocket is installed, (c) is an embodiment in which a chain is installed is shown.
[Fig. 6] shows a state in which the separation network of the present invention is installed and detached in the structure of the separation network module.

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

As shown in [FIG. 1] to [FIG. 3], the present invention surrounds the first and second side plates 110 and 120 and the first and second side plates 110 and 120 of the disk-shaped disposed on both sides. Screen drum 100 comprising a winding separation net 130; The hood 200 disposed inside the screen drum 100, opened toward the conveyor belt 10 for transporting the aggregate 1, and providing the suction force generated by the suction fan 400 to the conveyor belt 10. ; and a rotation shaft 500 coupled to the center of the first side plate 110 and axially rotating by externally applied power; Including, the suction force provided to the hood 200 is applied to the foreign material 2 in the aggregate 1 that is transferred to the conveyor belt 10 through the separation network 130, so that the foreign material 2 is separated It provides a drum-type foreign material adsorption sorting device, characterized in that it is transported along the rotational direction of the screen drum 100 in a state of being adsorbed to the net 130 and discharged in a section where the suction force is not provided.

Hereinafter, in describing the embodiment of the present invention, the transport direction of the conveyor belt 10 is referred to as an axial direction of the screen drum 100, and a direction orthogonal to the axial direction is referred to as a width direction. In addition, the direction in which the first and second side plates 110 and 120 are positioned in the screen drum is referred to as a side or a side surface.

The screen drum 100 is configured to include disk-shaped first and second side plates 110 and 120 disposed on both sides and a separation network 130 surrounding the first and second side plates 110 and 120 .

The screen drum 100 is installed so that the lower end is spaced apart from the conveyor belt 10 by a predetermined interval. In addition, the screen drum 100 is disposed parallel to the moving direction of the conveyor belt (10).

Accordingly, when showing a cross-sectional view of the screen drum 100 and the conveyor belt 10 cut vertically in the traveling direction, the conveyor belt 10 having a U-shaped cross section as shown in FIG. 2 . The lower end of the screen drum 100 having a circular cross-section corresponds to the upper surface of the conveyor belt 10 and the lower end of the screen drum 100 may be spaced apart while maintaining a constant distance as a whole.

The screen drum 100 is formed in a drum shape having an accommodating space therein, and both sides are composed of the first and second side plates 110 and 120 of the disk shape, and between the first and second side plates 110 and 120 . It may be configured to further include a connection frame 140 for connecting the.

A plurality of the connection frames 140 are arranged at regular intervals along the periphery of the first and second side plates 110 and 120 disposed to face each other, and have a cylindrical structure between the first and second side plates 110 and 120 . It may be installed to be formed as The connection frame 140 is installed at the ends of the rims of the first and second side plates 110 and 120, or spaced apart concentrically from the rims of the first and second side plates 110 and 120 toward the center of the rotation shaft 500 at regular intervals. can be installed. When the connection frame 140 is installed adjacent to the ends of the rims of the first and second side plates 110 and 120, an external force is supported at the coupling portion between the connection frame 140 and the first and second side plates 110 and 120. Since there is a risk of cracks or damage to the first and second side plates 110 and 120 due to insufficient area of the members, the connection frame 140 is spaced apart from the edges of the first and second side plates 110 and 120 by a predetermined interval. It is preferable to install it.

In addition, when the connection frame 140 is installed to be spaced apart from each other by a predetermined interval in the direction of the rotation shaft 500 as described above, it is also easy to install the return blocking network 160 to be described later. When the return blocking network 160 is manufactured and installed to have the same height as the spaced length, the return blocking network 160 does not protrude to the outside of the first and second side plates 110 and 120, so it is externally organized. It is visible, and it is possible to prevent foreign substances from scattering to the side by covering the side of the return blocking network 160 and to prevent damage to the return blocking network 160 .

The first and second side plates 110 and 120 are formed in a disk shape having a constant thickness, and are provided at both ends of the screen drum 100 . The first and second side plates 110 and 120 connect the connection frame 140 and the separation network 130 and rotate by the rotation shaft 500 for a long time, so to prevent deformation and destruction due to torsional moment, rigidity It is preferable to be made of this high steel material and alloy steel.

An open hole is formed in the second side plate 120 to pass through the inside of the screen drum 100 , and the first side plate 110 is formed as a disc-shaped panel with an open hole or a blocked open hole without forming an open hole. can be The first side plate 110 in which the open hole is formed is connected to the outer edge of the rotation shaft 500 and the periphery of the open hole by a plurality of ribs, and the first side plate 110 in which the open hole is not formed is the rotation shaft 500 directly. 1 may be coupled to the central portion of the side plate 110 . At this time, since the first side plate 110 rotates together with the rotation shaft 500 , a reinforcing member is added to a portion where the first side plate 110 and the rotation shaft 500 are coupled to reinforce or reinforce the first side plate 110 . Strength can be increased by additionally laminating a reinforcing plate on the outside.

The open hole of the second side plate 120 may allow the flow pipe 300 to pass therethrough.

The flow pipe 300 may include a suction pipe 310 and an exhaust pipe 320 .

Of the flow pipe 300 , the discharge pipe 320 is a flow path through which air is discharged by the rotation of the suction fan 400 , and the suction pipe 310 discharges air from the suction fan 400 , resulting in a pressure difference. It is a flow path for providing the suction force generated by the hood (200).

The separation network 130 may be configured as a mesh network or a perforated network. The mesh network may be configured by weaving metal yarns in the form of a rhombic network, a grid network, or the like. The perforation network may be configured by forming a plurality of perforations in a metal plate.

The hood 200 is opened toward the conveyor belt 10 for transporting the aggregate 1, and the suction force generated by the driving of the suction fan 400 and transmitted through the suction pipe 310 is applied to the conveyor belt. (10) is provided to the aggregate (1) to be transported. The suction force is applied to the aggregate 1 transferred to the conveyor belt 10 through the separation net 130 of the screen drum 100 rotating in the direction perpendicular to the traveling direction of the conveyor belt 10 . In addition, the suction force is insufficient to suck up the aggregate 1, and it must be provided with sufficient force to suck up foreign substances 2 such as paper, wood chips, styrofoam, vinyl, etc., for this purpose, the suction fan 400 The rotation speed, the distance between the hood 200 and the conveyor belt 10, etc. should be appropriately adjusted. Accordingly, foreign substances 2 such as paper, wood chips, styrofoam, vinyl, etc. mixed in the aggregate 1 can be sucked toward the hood 200 . Accordingly, by opening the entire lower surface of the hood 200 , it is preferable to widen the range in which the suction force is provided to correspond to the width of the conveyor belt 10 .

[FIG. 2] shows a process in which the foreign material 2 moves in a state of being adsorbed to the separation network 130 of the screen drum 100, and is separated by centrifugal force in a section where suction force is not provided.

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

Accordingly, the hood 200 may have an arc-shaped lower end, and may be configured to uniformly provide a 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 configured in a U-shape and may be spaced apart from each other while maintaining a constant distance from each other, and the hood 200 disposed inside the screen drum 100 is also the lower end. 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 provide a uniform suction force to the upper surface of the conveyor belt 10. Can be configured. .

In the conventional adsorption sorter, it was difficult to uniformly provide a suction force to the upper surface of the conveyor belt 10 formed with a U-shaped cross section because the lower end of the hood was formed horizontally, but the drum-type foreign material adsorption sorting device of the present invention has a U-shaped cross section. There is an advantage of being able to provide a uniform suction force even to the conveyor belt 10 formed of

The rotation shaft 500 may be coupled to the center of the first side plate 110 and configured to rotate by externally applied power. The rotating shaft 500 is installed to rotate the screen drum 100, and the rotating shaft 500 is preferably formed of a bar-shaped steel member in order to suppress a torsion moment and increase durability.

The rotation shaft 500 is configured such that the distal end is coupled to the center of the first side plate 110 of the screen drum 100, or the rotation shaft 500 is inserted into the screen drum 100 by a predetermined length. can be combined

Since the screen drum 100 is spaced apart in the air by the rotation shaft 500 coupled to the first side plate 110 , the rotation shaft 500 is configured to support the entire load of the screen drum 100 . At this time, in order to more stably couple the rotation shaft 500 and the first side plate, when the rotation shaft 500 is coupled with a predetermined length inserted into the inside of the screen drum 100, the rotation shaft 500 is finally It is possible to more stably support the load of the screen drum 100 .

In order to install the rotation shaft 500 , the rotation shaft 500 is supported by a support frame, and a bearing coupled to the rotation shaft 500 may be installed at a required portion of the rotation shaft 500 and the support frame. The rotation shaft 500 may further include a power transmission unit 510 for transmitting externally applied power. The power transmission unit 510 may include a power transmission sprocket formed along the outer periphery of the rotation shaft 500 and a power transmission chain that transmits a rotational force applied from the outside.

In addition, in the present invention, a counter weight 520 for applying a load vertically downward to the rotation shaft 500; may be configured to further include.

Since the screen drum 100 is installed spaced apart in the air with one side of the rotation shaft 500 coupled to the first side plate 110, it is fixed in a cantilever structure and is not coupled to the rotation shaft 500. A bending moment may be strongly applied to the free end (periphery of the second side plate). Accordingly, when the screen drum 100 is used for a long time, the entire screen drum 100 may be tilted downward due to the weight of the screen drum 100 and may come into contact with the conveyor belt 10 and be damaged. Accordingly, it is possible to prevent the screen drum 100 from tilting and deflecting by adding a counter weight 520 that applies a load vertically downward to the rotation shaft 500 located on the opposite side of the free end.

In this case, the counter weight 520 may have a through hole into which the rotation shaft 500 is inserted. By inserting and fixing the counter weight 520 into the rotation shaft 500 , a load may be applied downward to the rotation shaft 500 . At this time, since the counter weight 520 rotates together with the rotation shaft 500, it is preferably formed in a cylindrical shape to prevent eccentric rotation.

In the present invention, the foreign material 2 is not sucked into the inside of the hood 200, but moves for a certain period in a state in which it is adsorbed to the separation network 130 of the screen drum 100, and then in a section where the suction force is not provided. falls and is discharged.

In more detail, the suction force provided to the hood 200 is applied to the foreign material 2 in the aggregate 1 that is transferred to the conveyor belt 10 through the separation network 130 , and the foreign material 2 is separated from the separation network It may be transported along the rotational direction of the screen drum 100 in a state of being adsorbed to 130 , and may be configured to be 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 side of the cross-section of the U-shaped conveyor belt to the other, and as the screen drum 100 rotates, it is attached to the separation network 130. The foreign material 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 material 2 reaches a section where the suction force is not provided, the foreign material 2 is separated from the separation network 130 and discharged. In this case, the foreign material 2 may not be easily separated from the separation network 130 due to the residual force of the suction force or static electricity. The screen drum 100 of the present invention is configured to rotate continuously, and the foreign material 2 is more easily discharged by centrifugal force according to the rotation of the screen drum 100 . In addition, when the foreign material 2 is free-falling, it may not be properly seated in the foreign material outlet (not shown), but in the present invention, the foreign material 2 may At the same time as it is discharged, it jumps up to a certain height and settles in the foreign material outlet, so that the foreign material 2 can be discharged more stably.

An extension portion may be formed at the lower end of the hood 200 to extend a predetermined length in the discharge direction of the foreign material 2 as shown in FIG. 2 . When there is a need to guide the foreign material 2 up to a certain height and stably guide the foreign material 2 to the outlet of the foreign material 2, the lower end of the hood 200 is extended by a certain length as above to provide suction. can In addition, when reaching the discharge section of the foreign material 2, the extension of the hood 200 gradually decreases the suction force toward the discharge section in order to ensure that the foreign material 2 is stably separated so that the foreign material 2 is discharged. It may be configured to be easy.

In addition, on the outer periphery of the separation network 130, a plurality of return blocking networks 160 are provided with an upper end installed in the axial direction on the separating network 130 and a lower end configured not to touch the conveyor belt 10 at equal intervals. can be In this case, the upper end connected to the separation network 130 in the separation network 130 may be rotatably coupled to the connection portion in the axial direction to accelerate the separation of the foreign material 2 by shaking.

The return blocking network 160 may be made of the same material and structure as the separation network 130 . In addition, the return blocking network 160 may be formed by reinforcing the rim portion with an iron core frame, or may be formed of a flexible material.

By additionally configuring the return blocking network 160, the foreign material 2 is prevented from scattering disorderly to the outside of the screen drum 100 by the suction force, and centrifugal force, inertia and gravity in the discharge section of the foreign material 2 By shaking of the return blocking network 160 by the , it can help the discharge of the foreign material (2), and can contribute to the discharge of the foreign material (2) in an appropriate position. In addition, the return blocking network 160 can prevent the foreign substances 2 from being returned by static electricity during discharge and re-attached to the separation network 130 .

In addition, the suction fan 400 may be disposed inside or outside the screen drum 100 as shown in FIG. 3 . 3 (a) shows a state in which the suction fan 400 is disposed inside the screen drum 100, (b) shows the suction fan 400 is disposed outside the screen drum 100 state is shown. The size of the screen drum 100 can be easily changed, and if there is enough space therein, the hood 200 and the suction fan 400 can be installed to accommodate both the inside of the screen drum 100 .

When it is difficult to install the suction fan 400 inside the screen drum 100 , the suction fan 400 may be installed outside and the suction force may be transmitted to the hood 200 through the suction pipe 310 . At this time, both the suction pipe 310 and the discharge pipe 320 may be inserted through the open hole of the second side plate 120 to communicate with the inside of the screen drum 100 .

On the other hand, when the suction fan 400 is disposed inside the screen drum 100 , the suction pipe 310 is disposed inside the screen drum 100 , and the discharge pipe 320 is the second side plate 120 . ) may communicate with the inside of the screen drum 100 through the opening hole.

At this time, the suction pipe 310 or the discharge pipe 320 inserted from the outside can be installed with an auxiliary frame to support the lower end and prevent long-term sagging.

The present invention is installed so as to be in contact with the outer periphery of the second side plate 120 to rotate in engagement with the second side plate 120, the auxiliary wheel (wheel, 600) 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 has a cantilever structure that is installed spaced apart in the air while being coupled to the rotation shaft 500 and the first side plate 110, and the rotation shaft 500 An auxiliary wheel 600 may be installed under the second side plate 120 opposite to the coupling part of the screen drum 100 to distribute the load applied to the screen drum 100 .

The auxiliary wheel 600 may be disposed on the lower front side and the rear side of the second side plate 120, respectively, as shown in FIG. 2 . This is preferable because it is arranged in a triangular shape when the rotation center of the screen drum 500 and the auxiliary wheels 600 on both sides are connected to each other, so that the load can be stably distributed.

The auxiliary wheel 600 is applicable to any rotational structure rotatable in engagement with the second side plate 120 such as rollers, gears, and sprockets.

[FIG. 4] is an embodiment of the auxiliary wheel 600 configured in a roller shape, and may be configured to rotate in contact with the second side plate 120 formed in a ring shape.

[Fig. 5] shows an embodiment of an auxiliary wheel 600, (a) is an auxiliary gear 600a is installed, (b) is an auxiliary sprocket 600b is installed, (c) is a chain 620 ) is shown in the installed embodiment.

[Fig. 5a] is an embodiment of a gear-type rotational structure, in which a gear blade is formed around the second side plate 120, and the auxiliary gear 600a is rotated by meshing with the gear blade formed on the second side plate 120. will show In this case, the auxiliary gear 600a, like the roller-type auxiliary wheel 600 , the auxiliary gear 600a may contribute to load distribution of the screen drum 100 .

[Fig. 5b] is an embodiment of the chain 620 sprocket rotation structure, the chain 620 is wrapped around the second side plate 120 and installed, and the auxiliary sprocket 600b is engaged with the chain 620 and rotates It shows the state to be lowered. In this case, the auxiliary sprocket 600b may contribute to the load distribution of the screen drum 100 by the auxiliary sprocket 600b like the roller-type auxiliary wheel 600 .

[Fig. 5c] is another embodiment of the chain 620 sprocket rotation structure, in which a sprocket is formed around the second side plate 120, and at the same time as the sprocket located spaced apart from the top of the screen drum 100, the chain 620 It shows the state in which it is engaged and rotated. In this case, the second side plate 120 of the screen drum 100 is connected to the sprocket located at the top as a whole by a chain 620 , thereby preventing the screen drum 100 from sagging and contributing to load distribution.

In addition, the channel (channel) type cover 610 installed to surround the periphery of the auxiliary wheel (600); It may be configured to further include. The channel-type cover may surround and protect the auxiliary wheel 600 as shown in [FIG. 4], and may fix the rotation axis of the auxiliary wheel 600.

The auxiliary wheel 600 is not coupled to a separate auxiliary power transmission unit, and may only serve to distribute the load by being engaged with the rotation of the screen drum 100 .

Alternatively, an auxiliary power transmission unit (not shown) connected to the central axis of the auxiliary wheel 600 to rotate the auxiliary wheel 600; It may be configured to further include. In this case, the auxiliary power transmission unit may be operated by adjusting the rotation speed according to the rotation ratio in order to rotate smoothly in engagement with the rotation of the second side plate 120 . As described above, when the auxiliary power transmission unit is coupled to the auxiliary wheel 600 , the load of the power transmission unit 510 connected to the rotation shaft 500 may be distributed.

In addition, the separation network 130 may be configured by combining the separation network modules 131 partitioned in a predetermined size.

[Fig. 6] shows a state in which the separation network 130 of the present invention is installed in the structure of the separation network module 131 and is detached.

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

When describing the coupling structure of the separation network module 131 based on the embodiment of [Fig. 6], the screen drum 100 includes the first and second side plates 110 and 120 and the first and second side plates 110, 120) and is configured to include a connection frame 140 for supporting the separation network 130, and a ring-shaped frame 150 is additionally installed at the middle portion of the connection frame 140 to provide the screen drum 100 ) can be strengthened.

According to the embodiment of [Fig. 6], the outer periphery of the screen drum 100 is composed of eight compartments divided by the first and second side plates 110 and 120, the connecting frame 140 and the ring-shaped frame 150, , thus, the separation network module 131 may be manufactured to correspond to the size and shape of each compartment, and may be installed by being coupled to the connection frame 140 and the ring-type frame 150 . In addition, by forming the separation network module 131 with a size corresponding to the combined size of several sections, one separation network module 131 may be combined in several sections.

As described above, when the separation network 130 is configured by combining the separation network module 131, even if a part of the separation network 130 is damaged, the entire separation network 130 is not replaced, and the damaged separation network module 131 ) can be replaced, so quick replacement is possible, manpower and repair costs are saved, and maintenance is easy.

In the above, the present invention has been described in detail along with specific examples. However, the present invention is not limited by the above embodiments and may be modified and modified without departing from the gist of the present invention. Accordingly, the claims of the present invention cover such modifications and variations.

1: Aggregate 2: Foreign matter
10: conveyor belt
100: screen drum
110: first side plate 120: second side plate
121: open hole
130: separation network 131: separation network module
140: connection frame 150: ring-type frame
160: return blocking network
200: hood
300: Euro tube
310: suction pipe 320: discharge pipe
400: suction fan
500: rotation axis
510: power transmission unit 520: counter weight (Counter Weight)
600: auxiliary wheel (Wheel)
600a: auxiliary gear 600b: auxiliary sprocket
610: channel type cover 620: chain

Claims (8)

a screen drum 100 including a separation net 130 surrounding the first and second side plates 110 and 120 of the disk shape disposed on both sides and the first and second side plates 110 and 120;
a hood 200 disposed inside the screen drum 100 and opened toward the conveyor belt 10 for transporting the aggregate 1 to provide the suction force generated by the suction fan 400 to the conveyor belt; and
a rotation shaft 500 coupled to the center of the first side plate 110 and axially rotating by externally applied power; includes,
The suction force provided to the hood 200 is applied to the foreign material 2 in the aggregate 1 that is transferred to the conveyor belt 10 through the separation network 130 , and the foreign material 2 is transferred to the separation network 130 . Drum-type foreign material adsorption sorting device, characterized in that it is transported along the rotational direction of the screen drum (100) in a state of being adsorbed to the .
In claim 1,
The screen drum (100) is a drum-type foreign material adsorption sorting device, characterized in that it is arranged parallel to the moving direction of the conveyor belt (10).
In claim 2,
The hood 200 is formed in an arc-shaped lower end,
Drum-type foreign material adsorption and sorting device, characterized in that it is configured to provide a uniform suction force to the upper surface of the conveyor belt (10) having a U-shaped cross section.
In claim 1,
The screen drum 100,
a connection frame 140 connecting between the first and second side plates 110 and 120 and supporting the separation network 130; Drum-type foreign material adsorption sorting device, characterized in that it further comprises a.
In claim 1,
a counter weight 520 for applying a load vertically downward to the rotation shaft 500; Drum-type foreign material adsorption sorting device, characterized in that it further comprises a.
In claim 1,
The suction fan 400 is a drum-type foreign material adsorption sorting device, characterized in that it is disposed inside or outside the screen drum (100).
In claim 1,
an auxiliary wheel (Wheel, 600) installed to contact the outer periphery of the second side plate (120), rotated in engagement with the second side plate (120), and configured to support the load of the screen; Drum-type foreign material adsorption sorting device, characterized in that it further comprises a.
8. In any one of claims 1 to 7,
The separation network 130 is
A drum-type foreign material adsorption sorting device, characterized in that it is composed of a combination of the separation network module (131) partitioned into a certain size.

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