KR102633589B1 - Blower - Google Patents

Abstract

A blower including a motor, an impeller structure, and a housing is disclosed. The impeller structure includes first and second circular plates and a plurality of blades coupled thereto. An intake port through which air is sucked is formed on the second side of the housing, the inner space of the housing is formed in a cylindrical shape with a width greater than the width of the impeller structure, and the inner space of the housing has an external outer space upward. An exhaust port that communicates with the space is formed, and the exhaust port is formed in a structure that is open with respect to the vertical radial direction of the impeller structure. The blower according to the present invention contributes to the adsorption conveyor device achieving excellent efficiency in separating lightweight foreign substances contained in the aggregate mixture derived from landfill soil or construction waste from the aggregate mixture.

Description

Blower {Blower}

The present invention relates to a blower, and more specifically, to a blower used in an adsorption conveyor device that selects lightweight foreign substances contained in the aggregate mixture derived from landfill soil or construction waste from the aggregate mixture.

Landfill soil or construction waste includes not only recyclable resources such as soil, gravel, and waste concrete, but also objects formed from organic materials with a smaller specific gravity than aggregates such as soil and gravel, such as tree branches, leaves, wood chips, and plastic. Films and sheets are also mixed. These objects are defined herein as lightweight foreign bodies. Additionally, landfill soil or construction waste may contain metal objects such as rebar. In order to recycle landfill soil and construction waste, aggregates such as soil and gravel must be separated from lightweight foreign substances and metal objects such as rebar. In this specification, gravel is understood to include not only gravel that is coarser than soil, which is derived from landfill soil, but also lumps or fragments of waste concrete that are derived from construction waste, etc.

Until now, various efforts have been made to select and separate lightweight foreign substances from aggregate mixtures. Although the task of separating soil from the aggregate mixture using a soil sorting device has been relatively easy, the task of completely separating lightweight foreign substances from the aggregate mixture from which the soil has been removed has not been sufficiently achieved. For example, after the soil is sorted by a soil sorting device with a 15mm soil sorting hole, the aggregate mixture collected by passing through a sorter with a 35mm sorting hole contains approximately 70% gravel by volume, and the soil It contains less than 5%, and lightweight foreign substances may contain approximately 25%. If the aggregate mixture contains more than 1% of lightweight foreign matter by volume, there is a limitation in that such aggregate mixture cannot be recycled as a resource. That is, such aggregate mixtures are undesirable from the viewpoint of resource circulation because they must be disposed of. Accordingly, there has been a need for a device and method to select lightweight foreign materials so that the aggregate mixture contains less than 1% of lightweight foreign materials by volume, but satisfactory results have not yet been obtained.

Specifically, Republic of Korea Patent Registration No. 10-2029736 (registered on October 1, 2019) discloses a vibration-suction screening device for foreign substances in aggregate. The disclosed device allows lightweight foreign substances mixed in the aggregate to be separated by specific gravity difference by vibration generated by a vibrating sorting feeder, and discharges the mixture of aggregate and lightweight foreign substances onto the aggregate transfer conveyor belt and then to the upper part of the aggregate transfer conveyor belt. Lightweight foreign materials are selectively separated from the aggregate mixture by adsorbing the lightweight foreign materials by the arranged screen belt. At this time, a suction force is applied to the screen belt in an upward direction by the suction pump and suction force supply pipe, so that the screen belt can adsorb light foreign substances.

In the device of the prior art described above, when the screen belt rotates at an appropriate speed, lightweight foreign substances must be well adsorbed in the adsorption area of the screen belt, while lightweight foreign substances must be well desorbed by the action of gravity in the desorption area where they must be desorbed. Additionally, in the area between the adsorption and desorption areas of the screen belt, lightweight foreign substances must remain attached to the screen belt. In other words, lightweight foreign substances should not fall due to gravity in the area between the adsorption and desorption areas of the screen belt.

However, since lightweight foreign substances have a relatively small specific gravity, if lightweight foreign substances are too strongly adsorbed in the adsorption area of the screen belt, they tend to continue to rotate while adsorbed on the screen belt rather than being desorbed in the desorption area. On the other hand, if lightweight foreign matter is too weakly adsorbed in the adsorption area of the screen belt, it tends to desorb before it even reaches the desorption area and the light foreign matter is not separated from the aggregate mixture.

When the above cases occur, the separation efficiency of lightweight foreign substances deteriorates. Since the above-described prior art only mentions providing suction force to the screen belt by a general suction pump, it is difficult to expect that it can provide an effective means for adsorption and desorption of light foreign substances from the screen belt. Additionally, it is very difficult to design a suction device that operates in a range of suction forces that satisfies the above requirements.

Meanwhile, Republic of Korea Patent Publication No. 10-2007-0007631 (published on January 16, 2007) discloses a blower and a vacuum cleaner equipped with the same, and Korean Patent Registration No. 10-2104513 (published on April 20, 2020) discloses a blower and a vacuum cleaner equipped with the same. A centrifugal fan for blowing is disclosed, and Republic of Korea Patent Registration No. 10-2342194 (registered on December 17, 2021) discloses a high-efficiency, low-noise blower.

The disclosed blowers are applied to vacuum cleaners and air conditioners, and only disclose the structure of a general centrifugal blower, and the above-mentioned prior art regarding the separation of lightweight foreign substances is insufficient to be applied to a suction device that effectively and efficiently performs adsorption and desorption on the screen belt. do.

Accordingly, the purpose of the present invention is to provide a blower used in an adsorption conveyor device with excellent efficiency in separating lightweight foreign substances contained in the aggregate mixture derived from landfill soil or construction waste from the aggregate mixture.

That is, the purpose of the present invention is to separate lightweight foreign substances contained in the aggregate mixture derived from landfill soil or construction waste from the aggregate mixture, and when the adsorption conveyor belt rotates at an appropriate speed, the adsorption of the adsorption conveyor belt Excellent separation efficiency of lightweight foreign substances by adsorbing lightweight foreign substances in the area, desorbing them in the desorption area, and maintaining the attached state of lightweight foreign substances without falling due to their own weight in the non-adsorption area between the adsorption area and the desorption area. The aim is to provide a blower used in an adsorption conveyor device that can obtain.

A blower according to the present invention for achieving the above object includes a motor, an impeller structure, and a housing.

The impeller structure includes first and second circular plates and a plurality of wings interposed between the first and second circular plates and coupled to the first and second circular plates, and accommodated in the inner space of the housing. It rotates according to the operation of the motor by combining with the rotation axis of the motor disposed on the first side of the housing, and an intake port through which air is sucked is formed on the second side of the housing, and the internal space of the housing is formed in a cylindrical shape with a width greater than the width of the impeller structure, and an exhaust port is formed in the inner space of the housing to communicate with the external space in the upper direction, and the exhaust port is open in the vertical radial direction of the impeller structure. It is formed with a structure that is

The exhaust port has a rectangular cross-section and is connected to the upper hood, wherein the upper hood includes a vertical portion and a horizontal portion formed sequentially from the vertical portion, and air discharged through the exhaust port is discharged from the exhaust port and the upper hood. It may rise vertically through the vertical portion of the hood and then be horizontally discharged to the outside through the horizontal portion of the upper hood.

In the impeller structure, a flange through-hole for connecting the rotation shaft of the motor is formed at the center of the first circular plate, and an inlet having a larger diameter than the flange through-hole is formed at the center of the second circular plate. The wings are divided into a plurality of type 1 wings and a plurality of type 2 wings disposed between the type 1 wings, and the type 1 wings are formed in a plate shape forming a curved surface curved toward the direction of rotation. The plate shape has a rectangular shape in plan view, and is coupled to the second circular plate from the circumferential area of the second circular plate to the inlet boundary area, and the second circular plate is coupled to the circular plate in the circumferential area of the first circular plate. It is disposed in combination with the first circular plate over an inlet boundary corresponding area of the first circular plate corresponding to the inlet boundary area of the circular plate, and the second type blade is shaped like a plate forming a curved surface curved toward the rotation direction. Formed to couple with the first circular plate from the circumferential area of the first circular plate to the boundary area of the flange through hole, and to engage the second circular plate from the circumferential area of the second circular plate to the boundary area of the inlet port. It is arranged to be coupled to a circular plate, and the curved plate shape of the second type wing has a rectangular shape from a plan view perspective up to the portion where it is coupled together with the first and second circular plates, while at the portion where it is coupled only to the first circular plate, It may be formed in a concave arc shape from the part where it is coupled with the second circular plate to the part where it is coupled with the first circular plate.

The number of type 1 wings may be selected from the range of 4 to 16, and the number of type 2 wings may be selected from the range of 2 to 8. In particular, the number of type 1 wings may be 8, and the number of type 2 wings may be 4.

A plurality of bolt through holes may be formed around the flange through hole in the first circular plate.

A flange having a rotation shaft through hole into which the rotation axis of the motor is inserted and a bolt coupling hole or coupling groove corresponding to the bolt through hole of the first circular plate is inserted into the flange through hole of the first circular plate, and a plurality of bolts are inserted. Penetrates the bolt through hole of the first circular plate and is fastened to the bolt coupling hole or coupling groove of the flange, so that the flange is coupled to the first circular plate.

In the second circular plate, first fitting holes corresponding to the number of wings are formed adjacent to the circumferential area, and second fitting holes corresponding to the number of wings are formed adjacent to the inlet boundary area. In the first circular plate, first and second fitting holes are formed at positions corresponding to the first and second fitting holes of the second circular plate, and adjacent to the flange through hole, there are as many as the number of second wings. A third fitting hole is formed, and the first type wing includes a pair of first fitting protrusions and a pair of first fitting protrusions on both sides at positions corresponding to the first and second fitting holes of the first and second circular plates. A second fitting protrusion is formed, and the first and second fitting protrusions are inserted into the first and second fitting holes of the first and second circular plates so that the first type wing is formed with the first and second fitting protrusions. 2 It is coupled to a circular plate, and the second type wing includes a pair of first fitting protrusions and a pair of second fitting protrusions on both sides at positions corresponding to the first and second fitting holes of the first and second circular plates. A fitting protrusion is formed, and one third fitting protrusion is formed on the side at a position corresponding to the third fitting hole of the first circular plate, and the first and second fitting protrusions are formed on the first and second fitting protrusions. It is inserted into the first and second fitting holes of the second circular plate, and the third fitting protrusion is fitted into the third fitting hole of the first circular plate, so that the second type wing is connected to the first and second circular plates. can be combined with

The type 1 and type 2 wings form a curved surface with the same radius of curvature, and the overall curve of the type 1 wing may be 70 degrees, while the overall curve of the type 2 wing may be 100 degrees.

The radius of curvature of the type 1 and type 2 wings may be in the range of 230 to 260 mm based on the inner surface of the wing.

The distal end of the type 1 wing may be disposed inside the boundary of the inlet of the second circular plate and exposed to the outside of the inlet in a vertical direction through the inlet.

The blower according to the present invention contributes to the adsorption conveyor device achieving excellent efficiency in separating lightweight foreign substances contained in the aggregate mixture derived from landfill soil or construction waste from the aggregate mixture. That is, the blower of the present invention is an adsorption conveyor device that separates lightweight foreign substances contained in the aggregate mixture derived from landfill soil or construction waste from the aggregate mixture, when the adsorption conveyor belt rotates at an appropriate speed. Excellent performance by adsorbing lightweight foreign substances in the adsorption area of the conveyor belt, desorbing them in the desorption area, and keeping lightweight foreign substances attached in the non-adsorption area between the adsorption and desorption areas without falling due to their own weight. Contributes to achieving separation efficiency of lightweight foreign substances.

Figure 1 is a perspective view showing the overall configuration of a lightweight foreign matter screening system including an adsorption conveyor device employing a blower according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating an example in which an inclined plate is formed as a perforated plate in the lightweight foreign matter separation system of FIG. 1.
Figure 3 is a diagram showing a part of an adsorption conveyor device employing a blower according to an embodiment of the present invention.
Figure 4 is a detailed view of the suction pipe shown in Figure 3.
FIG. 5 is a diagram for explaining the control of suction conditions by adjusting the damper installed inside the suction pipe shown in FIG. 4.
Figure 6 is a diagram for explaining the role of a partition in an adsorption conveyor belt applied to an adsorption conveyor device employing a blower according to an embodiment of the present invention.
Figure 7 is a diagram showing the cross-sectional structure of an adsorption conveyor belt applied to an adsorption conveyor device employing a blower according to an embodiment of the present invention.
Figure 8 is a diagram showing the arrangement of the warp and weft threads of the fabric layer (tension material) and the suction hole in the adsorption conveyor belt applied to the adsorption conveyor device employing a blower according to an embodiment of the present invention.
Figure 9 is a diagram showing a blower according to an embodiment of the present invention.
Figure 10 is an exploded perspective view of the blower of Figure 9.
FIG. 11 is a diagram showing an impeller structure applied to the blower of FIG. 9.
FIG. 12 is a diagram illustrating a first circular plate applied to the impeller structure of FIG. 11.
FIG. 13 is a diagram illustrating a second circular plate applied to the impeller structure of FIG. 11.
FIG. 14 is a diagram showing a type 1 wing applied to the impeller structure of FIG. 11.
FIG. 15 is a diagram showing a second type blade applied to the impeller structure of FIG. 11.
Figure 16 is a front view of a portion of the housing of the blower shown in Figure 9.

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

The lightweight foreign matter screening system of the present invention separates lightweight foreign materials mixed in the aggregate mixture including aggregates and lightweight foreign materials from the aggregate mixture, and the overall configuration is shown in Figures 1 and 2. The lightweight foreign matter screening system 1 includes a vibration transfer device 20, an aggregate transfer conveyor device 30, and an adsorption conveyor device 40 installed on the frame 10.

The vibration transfer device 20 includes an inclined plate 21 and a vibration means 24. The inclined plate 21 is installed inclined downward. The vibration means 24 serves to spread the aggregate mixture evenly and transport it downward by vibrating the inclined plate 21 when the aggregate mixture is introduced into the inclined plate 21. A plurality of soil penetration holes 22 may be formed in the inclined plate 21. The diameter of the soil penetration hole 22 may be set to, for example, about 9 mm. That is, the inclined plate 21 may be formed as a perforated plate. Then, the soil contained in the aggregate mixture is discharged downward through the soil penetration hole 22 of the inclined plate 21. A side wall 23 is installed to prevent the aggregate mixture supplied to the inclined plate 21 from deviating to the side. In addition, a buffer spring 25 is disposed between the frame 10 and the swash plate 21 to cushion and support the swash plate 21 vibrated by the vibration means 24.

The conveyor device 30 for transferring aggregate is disposed below the distal end 26 of the inclined plate 21 of the vibration conveying device 20, and serves to receive and transport the falling aggregate when the aggregate passes through the inclined plate 21 and falls down. Do it. The conveyor device 30 for transporting aggregate includes a motor 32, a driving roller 33, a driven roller 34, an auxiliary roller 35, and a conveyor belt 36 installed on the frame 31. The conveyor belt 36 is supported by the driving roller 33 and the driven roller 34 and rotates along an annular orbit. The driving roller 33 and the driven roller 34 are used to prevent the conveyor belt 36 from sagging. An auxiliary roller 35 is disposed between them. The conveyor device 30 for transporting aggregate may be disposed under the inclined plate 21 of the vibration conveying device 20 to an area extending beyond the distal end 26 of the inclined plate 21. In such a case, the soil discharged downward through the soil penetration hole 22 of the inclined plate 21 is collected on the conveyor belt 36 of the aggregate transport conveyor device 30, and beyond the distal end 26 of the inclined plate 21. It is transported in the direction opposite to the transport direction of the aggregate mixture on the inclined plate 21 together with the gravel collected from. It is preferable that the conveyor device 30 for transporting aggregates is arranged to be inclined at the same inclination angle as the incline plate 21 or at a slightly gentler incline angle in order to better receive falling soil. On the other hand, it is also possible to design the system in a structure in which a conveyor device for soil transport is disposed under the inclined plate 21 separately from the conveyor device for transporting aggregates 30. In such a case, the soil that has fallen from the inclined plate 21 can be separately collected and transported by a conveyor device for soil transfer.

The adsorption conveyor device 40 is disposed above the distal end 26 of the inclined plate 21 of the vibration transfer device 20 and adsorbs lightweight foreign substances at the distal end 26 of the inclined plate 21, that is, as described in detail below. As described above, lightweight foreign substances mixed in the aggregate mixture passing under the adsorption conveyor belt 100 are adsorbed to the suction hole forming area 110 of the adsorption conveyor belt 100 by the suction force of the blower 50, thereby forming the aggregate mixture. Lightweight foreign substances are selected from As shown in FIG. 3, the adsorption conveyor device 40 includes a belt drive motor 42, a drive roller 43, a driven roller 44, and auxiliary rollers 45 and 46 installed on the frame 41. , suction pipes 47 and 48, and an adsorption conveyor belt 100.

The driving roller 43 rotates by the rotation of the belt driving motor 42, and the rotational force of the driving roller 43 is transmitted by the adsorption conveyor belt 100 to the driven roller 44 and the auxiliary roller 45 and 46). That is, the adsorption conveyor belt 100 is supported by the driving roller 43, the driven roller 44, and the auxiliary rollers 45 and 46 and continuously rotates along an endless orbit. At this time, it is preferable that the endless track of the adsorption conveyor belt 100 is arranged perpendicular to the longitudinal direction of the inclined plate 21. The driving roller 43 and the driven roller 44 are preferably disposed at the same vertical position, and the auxiliary rollers 45 and 46 are disposed above the driving roller 43 and the driven roller 44. It is preferable that the auxiliary rollers consist of a pair (45 and 46). When the auxiliary rollers 45 and 46 are arranged as a pair, it is preferable that they are arranged in the same vertical position. Meanwhile, four traction hooks 41A are installed on the frame 41 of the adsorption conveyor device 40. The adsorption conveyor device 40 is installed to hang on the frame 10 of the lightweight foreign matter screening system 1 by means of the tow hook 41.

The suction pipe 47 is disposed between the driving roller 43, the driven roller 44, and a pair of auxiliary rollers 45 and 46 in the inner space of the adsorption conveyor belt 100. The suction pipe 47 can be formed in various shapes, but in order to more effectively achieve the purpose of the present invention, it is preferably formed in the shape specifically shown in FIG. 4.

Specifically, as shown in (b) of FIG. 4, the suction pipe 47 may be formed in a trapezoidal shape with a narrow top when viewed from the front. The suction pipe 47 has a rectangular opening that acts as a suction port on the bottom, and as shown in Figures 4 (a) and (d), an opening edge portion 47A is formed on the edge of the rectangular plate shape. It is formed by A plurality of bolt holes are formed in the opening edge portion 47A, and the opening edge portion 47A is coupled to the frame 41 by bolting. A front plate 47B, a rear plate 47C, and both side plates 47D and 47E are formed extending upward from the inner corners of the opening edge portion 47A, and the upper plate 47F is horizontal. Cover.

As shown in (c) of FIG. 4, the front plate 47B has a vertical portion 47B1 extending vertically upward from the front inner edge of the opening edge portion 47A, and from the vertical portion 47B1 to the upper rear. It includes a first inclined portion 47B2 that extends obliquely and a second inclined portion 47B3 that obliquely extends upward and rearward from the first inclined portion 47B2. At this time, the inclination angle of the first inclined portion 47B2 is greater than the inclination angle of the second inclined portion 47B3. Openings are continuously formed in a portion of the vertical portion 47B1 and the first inclined portion 47B2 of the front plate 47, and the front cover 47B4 covers such openings. The front cover 47B4 is configured to be openably and closedly coupled to the front plate 47B. Therefore, the position of the damper 49, as described later, can be manually adjusted by opening the front cover 47B4. An example of the front cover 47B4 being coupled to the front plate 47B by screwing is shown in FIG. 4 . The front cover (47B4) can be opened by loosening and removing the screws and then lifting the tow line by attaching a tow line to the tow hook (47B41). Meanwhile, a tow hook (47B31) may be installed on the second inclined portion (47B3) of the front plate (47B). This tow hook (47B31) can be used to move the suction pipe (47) when installing and dismantling the suction pipe (47).

The back plate 47C includes a first vertical portion 47C1 extending vertically upward from the rear inner edge of the opening edge portion 47A, and an inclined portion 47C2 extending obliquely upward from the first vertical portion 47C1. and a second vertical portion 47C3 extending vertically upward from the inclined portion 47C2. At this time, the height of the first vertical portion 47C1 is lower than the height of the vertical portion 47B1 of the front plate 47B. The inclination angle of the inclined portion 47C2 is smaller than the inclination angle of the first inclined portion 47B2 of the front plate 47B and larger than the inclination angle of the second inclined portion 47B3. The starting height of the second vertical portion 47C3 is higher than the starting height of the first inclined portion 47B2 of the front plate 47B and is lower than the ending height of the first inclined portion 47B2. A circular opening is formed in the second vertical portion 47C3, and a cylindrical suction pipe 48 is connected to the circular opening. A blower 50 is connected to the suction pipe 48. The operation of the blower 50 generates suction force in the suction pipes 47 and 48.

Both side plates 47D and 47E are each disposed to obliquely extend upward and inward from the lateral inner edge of the opening edge portion 47A. The shape of both side plates 47D and 47E is determined by the side profiles of the front plate 47B and the rear plate 47C, and by the width of the inner opening of the opening edge 47A and the width of the top plate 47F. It is decided. The top plate 47F may be formed in a rectangular plate shape.

Meanwhile, as shown in FIG. 5, a damper 49 may be installed inside the suction pipe 47. The dampers 49 may, for example, be installed as a pair on the left and right sides of the center of the suction pipe 47. Thus, the damper 49 can adjust the suction force in the opening areas (A, B, and C) of the suction pipe 47. For example, when a pair of dampers 49 are arranged vertically (indicated by a dotted line in FIG. 5), a suction force acts on all of the opening areas (A, B, and C) of the suction pipe 47. On the other hand, when the pair of dampers 49 are tilted and in close contact with the left and right side plates 47D and 47E (indicated by a solid line in FIG. 5), there is a suction force in the opening area A of the suction pipe 47. However, the suction force does not act on the opening areas (B and C). Accordingly, by appropriately adjusting the inclination of the damper 49, the suction force acting on the opening areas A, B, and C can be adjusted.

Accordingly, when the adsorption conveyor belt 100 rotates at an appropriate speed due to the above-described shape of the suction pipe 47 and the action of the damper 49 disposed therein, the adsorption area of the adsorption conveyor belt 100 and In the desorption area, the adsorption and desorption of lightweight foreign substances can be appropriately controlled.

Referring again to FIG. 3, the suction conveyor belt 100 has a suction hole forming area 110 formed at the center along the longitudinal direction, and suction holes 111 formed on the left and right sides of the suction hole forming area 110. It is divided into left and right non-suction hole formation areas (120 and 130). The left and right non-suction pore formation areas 120 and 130 are formed symmetrically with respect to the suction pore formation area 110.

In the suction hole formation area 110, a plurality of suction holes 111 are formed at constant sizes and regular intervals along the longitudinal direction and the direction perpendicular to the longitudinal direction. The suction hole 111 is formed as a circular hole, the diameter of which is in the range of 5 to 10 mm, for example, can be set to 8 mm, and the gap between neighboring suction holes 111 is the suction hole 111. It is preferable that the suction holes 111 are arranged in a range of 0.5 to 1 times the diameter, for example, 6 mm.

The suction hole formation area 110 is formed to be divided into a plurality, and between the neighboring suction hole formation areas 110, a partition partition 140 is provided to divide each suction hole formation area 110 into an adsorption conveyor belt 100. ) is formed by protruding perpendicularly from the plane of the plane. The height of the partition partition 140 may be appropriately selected in consideration of its function, which will be described later. The partition 140 is preferably formed to extend to the left and right sides of the suction hole forming area 110, that is, to be wider than the width of the suction hole forming area 110. For example, the spacing between neighboring partition partitions 140 is in the range of 330 to 360 mm, for example, set to 345 mm, and the width of the partition partitions 140 may be set in the range of 330 to 370 mm. . For example, it may be set to 350mm. Meanwhile, the width and length of the suction hole forming area 110 may be set to, for example, 300 mm.

When the adsorption conveyor belt 100 rotates, when a suction force is applied to the suction pipes 47 and 48 by the blower 50, the adsorption conveyor belt 100 adsorbs lightweight foreign substances in the suction hole formation area 110. can do. At this time, the rotation speeds of the belt driving motor 42 and the blower driving motor 51 can be appropriately set. The adsorption conveyor belt 100 performs a suction action below the suction pipe 47, but beyond the area below the suction pipe 47, the suction force is not applied and the suction action cannot be performed. The adsorption conveyor belt (100) cannot perform the suction action if it goes below the suction pipe (47), but because it rotates at a high speed, even if it leaves below the suction pipe (47), lightweight foreign substances adsorbed on the adsorption conveyor belt (100) are immediately removed. It does not fall off the adsorption conveyor belt 100. In the present invention, assuming that the driving roller 33 rotates clockwise and thus the adsorption conveyor belt 100 rotates clockwise, the adsorption conveyor belt 100 located on the left side of the driving roller 33 ) is designed so that when the adsorption conveyor belt 100 rises upward from the protruding portion of ), lightweight foreign matter falls down by its own weight and is collected.

As shown in FIG. 6, if a strong suction force acts on the suction pipe 47, lightweight foreign matter attached to the non-adsorption area (E) just outside the adsorption area (D) of the adsorption conveyor belt 100 returns to the adsorption area. It can be sucked into (D). The compartment partition 140 is intended to prevent this phenomenon. As shown, in the case where there is a partition 140, the partition 140 blocks the path through which light foreign substances are sucked back from the non-adsorption area (E) to the adsorption area (D), so it acts on the suction pipe 47. If the suction force is not strong enough for the lightweight foreign matter to pass over the partition 140, the light foreign material will not be sucked back from the non-adsorption area (E) to the adsorption area (D).

Meanwhile, for reference, if a not strong suction force acts on the suction pipe 47, the lightweight foreign matter adsorbed in the non-adsorption area (E) just outside the adsorption area (D) of the adsorption conveyor belt 100 will return to the adsorption area ( D) may not be sucked in. However, the lightweight foreign matter falls by its own weight in the non-adsorption area (E) just outside the adsorption area (D) of the adsorption conveyor belt 100, thereby increasing the possibility that it will not be separated from the aggregate mixture. Therefore, in the present invention, assuming that the driving roller 33 rotates clockwise and thus the adsorption conveyor belt 100 rotates clockwise, the adsorption conveyor belt located on the left side of the driving roller 33 It is important to adjust the suction force in the suction pipe 47 so that when the adsorption conveyor belt 100 rises upward from the protruding portion of 100, light foreign substances fall down by their own weight and are collected.

The adsorption conveyor belt 100 applied to the present invention may be formed in a structure including a fabric layer (tension material) and a cover layer. As shown in FIG. 7, the adsorption conveyor belt 100 may include two fabric layers 101. The upper and lower cover layers 103 may be covered on the fabric layer 101. An adhesive layer 102 is interposed between the fabric layer 101 and the cover layer 103 and between the fabric layers 101. The fabric layer 101 is applied for the purpose of absorbing shock generated from the transported material and maintaining tensile strength, and includes wefts and warps made of cotton, nylon, polyester, etc. to maintain structural tension. The adsorption conveyor belt 100 applied to the present invention is preferably made of polyurethane except for the weft and warp threads of the fabric layer. Additionally, as shown in FIG. 8, the warp yarns 104 and weft yarns 105 of the fabric layer 101 are arranged horizontally and vertically around the suction hole 111 in the suction hole forming area 110.

In the present invention, when the adsorption conveyor belt 100 rotates at an appropriate speed and an appropriate suction force acts on the adsorption conveyor belt 100, the adsorption conveyor belt 100 serves to adsorb lightweight foreign substances. At this time, if the suction holes 111 are arranged in the suction hole formation area 110 with the above-mentioned diameter size and the gap between them, and the adsorption conveyor belt 100 is formed of polyurethane, the adsorption conveyor belt 100 is The above functions can be performed well.

If the size of the suction holes is large, such as a wire mesh or mesh mesh, but the gap between them is relatively small, some parts of lightweight foreign substances may become caught in the suction holes. In such cases, the light-weight foreign matter is too strongly bound to the wire mesh or mesh net and thus cannot be detached in the desorption area, resulting in a problem in which the separation efficiency of the light-weight foreign matter is lowered. In contrast, the adsorption conveyor belt 100 of the present invention sets the diameter size of the suction holes and the gap between them as described above, thereby preventing some parts of lightweight foreign substances from becoming caught in the suction hole 111 and only entering the suction hole 111. It is adsorbed only by the suction force acting on (111), and when it leaves the adsorption area, it is adsorbed only by the adhesive characteristics of the surface of the suction hole formation area (110) excluding the suction hole (111) and the rotational force of the adsorption conveyor belt (100). It is attached to the conveyor belt. Therefore, when the adsorption conveyor belt 100 of the present invention is used, some parts of lightweight foreign substances do not get caught in the suction hole 111, and lightweight foreign substances adsorbed in the adsorption area (D) are removed from the non-adsorption area. It does not fall due to its own weight and is easily collected in the desorption area.

On the other hand, when rubber is used as a material for the adsorption conveyor belt 100 in the present invention, the problem is that light foreign substances adsorbed in the adsorption area (D) do not easily fall off in the desorption area because the rubber itself has too strong adhesive properties. occurs. On the other hand, when wire mesh is used as a material for the adsorption conveyor belt 100 in the present invention, the adhesive properties of the wire mesh itself are too small, so lightweight foreign substances adsorbed in the adsorption area (D) even before they reach the desorption area. A problem occurs where the separation efficiency of lightweight foreign substances decreases. If a stronger suction force is provided to solve this problem, a problem arises in which light foreign substances adsorbed in the adsorption area (D) do not easily fall off in the desorption area. On the other hand, the present inventor came to the present invention after understanding that the adhesive properties of the polyurethane conveyor belt surface itself are optimal for application to the present invention. In other words, the present inventor understands that when a polyurethane conveyor belt is used, lightweight foreign substances adsorbed in the adsorption area (D) remain attached to the conveyor belt in the non-adsorption area and are well desorbed in the desorption area, and the present invention It has reached.

The blower 50 connected to the suction pipe 48 includes a motor 51 for driving the blower, an impeller structure 200, and a housing 300, as shown in FIGS. 9 and 10.

As shown in FIG. 11, the impeller structure 200 is interposed between the first and second circular plates 210 and 220 and the first and second circular plates 210 and 220 to form the first and second circular plates. It includes a plurality of wings (230 and 240) coupled to (210 and 220). The impeller structure 200, while accommodated in the internal space of the housing 300, is coupled to the rotation axis 52 of the motor 51 disposed on the first side of the housing 300 and rotates according to the operation of the motor 51. do.

In the impeller structure 200, a flange through hole 211 for connecting the rotation shaft 52 of the motor 51 is formed at the center of the first circular plate 210, as shown in FIG. 12. In the first circular plate 210, a plurality of bolt through holes 212 are formed around the flange through hole 211. As shown in FIG. 11, a flange 250 is inserted into the flange through hole 211 of the first circular plate 210. The flange 250 has a rotation shaft through hole 251 into which the rotation shaft 52 of the motor 51 is inserted and a bolt coupling hole or coupling groove 252 corresponding to the bolt through hole 212 of the first circular plate 210. has A plurality of bolts 260 penetrate the bolt through hole 212 of the first circular plate 210 and are fastened to the bolt coupling hole or coupling groove 252 of the flange 250, so that the flange 250 is connected to the first circular plate. It forms a structure bound to (210).

In the first circular plate 210, first fitting holes 213 are formed adjacent to the circumferential area and equal to the number of wings 230 and 240, and adjacent to the inlet boundary response area, the number of wings 230 and 240 is formed. A sufficient number of second fitting holes 214 are formed. In this specification, the inlet boundary corresponding area refers to the area of the first circular plate 210 corresponding to the boundary area of the inlet 221 of the second circular plate 220, which will be described below. In this specification, the circumferential area refers to an area adjacent to the outer periphery of the first and second circular plates 210 and 220. Additionally, third fitting holes 215 corresponding to the number of second wings 240 are formed in the first circular plate 210 adjacent to the flange through hole 211.

In the impeller structure 200, an inlet 221 is formed at the center of the second circular plate 220, as shown in FIG. 13, and has a larger diameter than the flange through hole 211. In the second circular plate 220, first fitting holes 222 are formed adjacent to the circumferential area as many as the number of wings 230 and 240, and adjacent to the inlet boundary area as many as the number of wings 230 and 240. A second fitting hole 223 is formed. That is, the first and second fitting holes 222 and 223 of the second circular plate 220 are formed at positions corresponding to the first and second fitting holes 213 and 214 of the first circular plate 210. there is.

In the impeller structure 200, the blades are divided into a plurality of first type blades 230 and a plurality of second type blades 240 disposed between the first type blades 230. The number of type 1 wings 230 may be selected from the range of 4 to 16, especially 8, and the number of type 2 wings 240 may be selected from the range of 2 to 8, especially 4. can be selected.

As shown in FIG. 14, the first type wing 230 is formed in a plate shape with a curved surface curved toward the direction of rotation, and the plate shape has a rectangular shape in plan view ((b) of FIG. 14). The first type wing 230 is coupled to the second circular plate 220 from the circumferential area of the second circular plate 220 to the boundary area of the inlet 221 and in the circumferential area of the first circular plate 210. It is disposed to be coupled to the first circular plate 210 over the inlet boundary corresponding area of the first circular plate 210, which corresponds to the boundary area of the inlet 221 of the second circular plate 220. In particular, the first type wing 230 has a pair of first and second inserts on both sides at positions corresponding to the first and second fitting holes (213 and 214 and 222 and 223) of the first and second circular plates (210 and 220). One fitting protrusion 231 and a pair of second fitting protrusions 232 are formed. So, the first and second fitting protrusions (231 and 232) are inserted into the first and second fitting holes (213 and 214 and 222 and 223) of the first and second circular plates (210 and 220) to form a type 1 Wings 230 are coupled to the first and second circular plates 210 and 220. After being joined in this way, the joining parts are more securely joined by welding.

As shown in FIG. 15, the second type wing 240 is formed in a plate shape with a curved surface curved toward the direction of rotation. The second type wing 240 is coupled to the first circular plate 210 from the circumferential area of the first circular plate 210 to the boundary area of the flange through hole 211 and is connected to the circumference of the second circular plate 220. It is disposed in combination with the second circular plate 220 from the area to the boundary area of the intake port 221. The curved plate shape of the second type wing 240 has a rectangular shape up to the part where it is joined together to the first and second circular plates 210 and 220 in plan view (Figure 15 (b)), while the first circular plate ( The portion coupled only to 210) has an arc shape 246 that is concave from the portion coupled to the second circular plate 220 to the portion coupled to the first circular plate 210. In particular, the second type wing 240 has a pair of first and second insertion holes on both sides at positions corresponding to the first and second fitting holes (213 and 214 and 222 and 223) of the first and second circular plates (210 and 220). 1 fitting protrusion 241 and a pair of second fitting protrusions 242 are formed, and one third fitting protrusion is fitted to the corresponding side at a position corresponding to the third fitting hole 215 of the first circular plate 210. A protrusion 243 is formed. So, the first and second fitting protrusions 241 and 242 are fitted into the first and second fitting holes 213 and 214 and 222 and 223 of the first and second circular plates 210 and 220, and the third fitting protrusions 241 and 242 are fitted into the first and second fitting holes 213 and 214 and 222 and 223 of the first and second circular plates 210 and 220. The protrusion 243 is inserted into the third fitting hole 215 of the first circular plate 210, so that the second type wing 240 is coupled to the first and second circular plates 210 and 220. After being joined in this way, the joining parts are more securely joined by welding.

The first and second types of wings 230 and 240 form curved surfaces with the same radius of curvature, and

The overall curve of the type 1 wing 230 is 70 degrees, while the overall curve of the type 2 wing 240 is 100 degrees. The curvature radius of the first and second type wings 230 and 240 may be set in the range of 230 to 260 mm based on the inner surface of the wing. For example, it may be set to 245mm.

As shown in (c) of FIG. 11, the distal end of the first type wing 230 is disposed inside the boundary of the inlet 221 of the second circular plate 220 and flows vertically through the inlet 221. It is preferably disposed to be exposed to the outside of the intake port 221. At this time, as shown in FIG. 14, the end corner portion of the first type wing 230 exposed to the outside of the intake port 221, that is, the portion where the lower side and the side side meet, is chamfered for the entire thickness to form a chamfered portion 233. ) can be formed. This chamfer 233 purifies the sharp parts, allowing the air coming through the intake port 221 to flow more smoothly.

Likewise, as shown in (c) of FIG. 11, the corresponding part of the second type wing 240 corresponding to the chamfered portion 233 of the first type wing 230 also corresponds to the inlet of the second circular plate 220. (221) It is preferable to be disposed inside the boundary and exposed to the outside of the suction port 221 in the vertical direction through the suction port 221. At this time, as shown in FIG. 15, the corresponding part of the second type wing 240 exposed to the outside of the inlet 221, that is, the part where the arc shape 246 and the side meet, is chamfered for the entire thickness to form a chamfer. A base 244 may be formed. This chamfer 244 purifies the sharp parts, allowing the air coming through the intake port 221 to flow more smoothly. Additionally, the chamfered portion 245 may be formed by chamfering the entire thickness at the portion where the arc shape 246 and the lower side meet. These chamfers 245 can also serve to purify the sharp parts and allow the air coming through the intake port 221 to flow more smoothly.

The impeller structure 200 formed with this structure operates by the portions of the first and second type blades 230 and 240 exposed to the intake port 221, especially the arc-shaped portion of the second type blade 240. By this, the air flow coming vertically through the intake port 221 is smoothly converted to the circular direction. In other words, the vertical transition of airflow occurs smoothly. As a result, the air pressure or air flow amount at the intake port 368 of the housing 300, that is, the inlet of the housing 300, and the exhaust port 370 of the housing 300, that is, the outlet of the housing 300, are explained in detail below. The ratio of air pressure or air flow amount is relaxed. For example, in the present invention, the air flow rate at the inlet to the impeller structure 200 was measured at 13,000 rube per hour and the air flow rate at the outlet was measured at 14,000 rube per hour. These measured values indicate that the outlet air pressure is only 1.08 times less than the inlet air pressure. Considering that in the case of a general blower, the outlet air pressure is about 1.5 times the inlet air pressure, the present invention is based on the ratio of outlet air pressure:inlet air pressure. It can be seen that has been significantly alleviated. The present invention appropriately relaxes this air pressure ratio, so that when the adsorption conveyor belt 100 rotates at an appropriate speed, light foreign substances are adsorbed in the adsorption area of the adsorption conveyor belt 100, desorbed in the desorption area, and non-adsorbed. It allows lightweight foreign substances in the area to perform well without falling due to their own weight.

Next, referring to FIGS. 9, 10, and 16, an intake port 368 through which air is sucked is formed on the second side of the housing 300. This suction port 368 is formed to coincide with the suction port 221 of the impeller structure 200. The suction port 368 is connected to the suction pipe 48. The internal space of the housing 300 is formed in a cylindrical shape with a width greater than the width of the impeller structure 200, and an exhaust port 370 is formed in the internal space of the housing 300 to communicate with the external space in the upper direction. . The exhaust port 370 is formed in a structure that is open with respect to the vertical radial directions (P1, P2, and P3) of the impeller structure 200.

Specifically, the exhaust port 370 has a rectangular cross-section and may be connected to the upper hood 380. The upper hood portion 380 may include a vertical portion 382 and a horizontal portion 383 formed sequentially to the vertical portion 382. A lower edge portion 381 is installed around the lower portion of the vertical portion 382. A plurality of bolt through holes are formed in the lower edge portion 381. The air discharged through the exhaust port 370 rises vertically through the exhaust port 370 and the vertical portion 382 of the upper hood portion 380, and then flows horizontally to the outside through the horizontal portion 383 of the upper hood portion 380. can be discharged as

More specifically, the housing 300 includes a base portion 310. The base portion 310 is generally formed in a circular shape. An opening 311 is formed in the center of the base portion 310 or in a portion slightly deviated from the center. A flange 250 is installed through this opening 311. A coupling extension portion 312 is formed by extending from the lower portion of the base portion 310, and a bent portion 313 is formed by bending outward from the coupling extension portion 312. A plurality of bolt through holes (not shown) are formed in the bent portion 313. The coupling extension 312 and the bent portion 313 are for coupling the housing 300 to the frame 10. Meanwhile, as shown in FIG. 16, an exhaust hole forming portion 315 is formed extending from the upper portion of the base portion 310. The exhaust hole forming portion 315 may be formed in a generally rectangular shape, and the circular shape of the base portion 310 smoothly transitions into a straight line in the exhaust hole forming portion 315. Meanwhile, tow hooks 314 are installed on both sides of the exhaust port forming portion 315. The tow hook 314 can be used to move the housing 300 when installing and dismantling the housing 300.

A side plate portion 320 is vertically coupled to the base portion 310. The side plate 320 has two curved portions 322 and 323 corresponding to the circular portion of the base portion 310, and two curved surfaces corresponding to the exhaust hole forming portion 315 and a portion of the base portion 310 that meets it. It may be composed of parts 321 and 324. The side plate portion 320 is divided into four parts for convenience of manufacturing. In order to easily couple the curved portions 321, 322, 323, and 324 to the base portion 310, a coupling hole is formed at a corresponding position of the base portion 310 and the curved portions 321, 322, 323, and 324 are formed. By forming a coupling protrusion, the coupling protrusion of the curved portions 321, 322, 323, and 324 can be inserted and fixed into the coupling hole of the base portion 310, and then the corresponding portion can be welded.

A side edge portion 330 may be coupled to the side edge of the side plate portion 320 to extend outward in a plate shape. The side plate portion 320 and the side edge portion 330 may also be coupled and welded in the same manner as the coupling and welding between the base portion 310 and the side plate portion 320. A plurality of bolt through holes may be formed in the side edge portion 330.

An upper edge portion 340 may be coupled to the upper edge of the side plate portion 320 and the upper edge of the base portion 310 to extend outward in a plate shape. The upper edge portion 340 may also be joined and welded in the same manner as the side edge portion 330. A plurality of bolt through holes may be formed in the upper edge portion 340.

Housing 300 also includes a plate-shaped cover 350. The plate-shaped cover 350 covers the side edge portion 330. At this time, a plurality of bolt through holes are formed in the position of the plate-shaped cover 350 corresponding to the bolt through hole formed in the side edge portion 330, and the plate-shaped cover ( 350) is coupled to the side edge portion 330. If necessary, the bolts and nuts can be dismantled to check the condition of the inside of the housing 300 and the condition of the impeller 200. A lower extension portion 352 is formed in the lower portion of the plate-shaped cover 350, and a lower bent portion 353 bent outward is formed in the lower extension portion 352. A plurality of bolt through holes are formed in the lower bent portion 353. The lower extension portion 352 and the lower bent portion 353 are for coupling the housing 300 to the frame 10. Meanwhile, an upper bent portion 351 bent outward is formed in the upper portion of the plate-shaped cover 350. A plurality of bolt through holes are formed in the upper bent portion 351. Tow hooks 355 are installed on both sides from the plate-shaped cover 350 below the upper bent portion 351. The tow hook 355 can be used to move the housing 300 when installing and dismantling the housing 300. In the plate-shaped cover 350, an opening 354 is formed at a position corresponding to the opening 311 of the base portion 310 and is larger than the opening 311. A plurality of coupling screws 356 are formed around the opening 354.

An inlet forming portion 360 is coupled to the opening 354 of the plate-shaped cover 350. The inlet forming part 360 includes a circular plate part 361. An intake port 368 is formed in the center of the circular plate portion 361. The circular plate portion 361 has a plurality of screw through holes 369 formed in the outer circumferential area. When the coupling screw 356 of the plate-shaped cover 350 passes through the screw through hole 369 of the circular plate part 361 and then fastens a nut to the coupling screw 356 from the outside, the circular plate part 361 and The combination of the plate cover 350 can be completed. In this case, it is convenient because the condition within the housing 300 can be checked by dismantling only the circular plate portion 361 even without removing the plate-shaped cover 350.

A circular pipe portion 362 is coupled to the suction port 368 of the circular plate portion 361. A plurality of rib parts 366 are installed to support the coupling of the circular pipe part 362. A flange portion 363 is installed in the circular pipe portion 362 to extend outward. A plurality of bolt through holes are formed in the flange portion 363.

The circular pipe portion 362 may be combined with the circular pipe portion 364. At this time, the circular pipe portion 364 may be the cylindrical suction pipe 48 mentioned above. In order to couple the circular pipe portion 364 with the flange portion 363 of the circular pipe portion 362, a flange portion 365 is installed on the circular pipe portion 364 to extend outward. A plurality of bolt through holes are formed in the flange portion 365. The circular pipe portion 364 can be coupled to the circular pipe portion 362 by aligning the bolt through hole of the flange portion 365 with the bolt through hole of the flange portion 363, inserting the bolt, and tightening the nut from the other side. .

Meanwhile, when the plate-shaped cover 350 is coupled to the side edge portion 330, the upper bent portion 351 meets the upper edge portion 340 to form a rectangular edge portion to form the exhaust port 370. After aligning the bolt through hole of the upper bent portion 351 and the upper edge portion 340 forming the exhaust port 370 with the bolt through hole formed in the lower edge portion 381 of the upper hood portion 380, insert the bolt. The upper hood 380 can be installed in the housing 300 by tightening the nut from the opposite side.

As shown in FIG. 16, the exhaust port 370 of the housing 300 formed with the above structure is positioned in the vertical radial direction of the impeller structure 200 when the impeller structure 200 is disposed inside the housing 300. It is formed as an open structure. At this time, the structure open with respect to the vertical radial direction of the impeller structure 200 refers to the vertical radial direction with respect to the center of the first circular plate 210 of the impeller structure 200, and the vertical radial direction with respect to the center of the second circular plate 220. A vertical plane (P1) consisting of a vertical radial direction and vertical radial directions parallel to such vertical radial directions between such vertical radial directions, and vertical planes (P2 and It means a structure that is open to P3). That is, the exhaust port 370 is formed in a structure that is open in a direction generally perpendicular to the circumferential direction of the impeller structure 200.

In a typical structure of the housing of a centrifugal blower, the exhaust port of the housing generally coincides with the rotation direction of the impeller structure. That is, in the housing of a typical centrifugal blower, the exhaust port is formed generally perpendicular to the radial direction. As a result, centrifugal force acts perpendicular to the radial direction of the impeller structure due to the rotation of the impeller structure, and so the air flow formed by such centrifugal force is not interrupted by the exhaust port, that is, the intensity of such air flow is hardly reduced at the exhaust port. Instead, it passes through the exhaust port.

In the present invention, the structure of the housing 300 is different from the structure of a typical housing of a centrifugal blower, and is made as described above, so the air flow flowing in the rotation direction by the impeller structure 200 flows from the exhaust port 370. Instead of being discharged along the direction of rotation, the direction is changed once again to a direction generally perpendicular to the direction of rotation, so that the air flow is converted more smoothly. This additional change to the airflow serves to further relax the outlet air pressure:inlet air pressure ratio. Accordingly, the present invention has a better function of adsorbing lightweight foreign matter in the adsorption area of the adsorption conveyor belt 100, desorbing it in the desorption area, and maintaining the lightweight foreign matter in the non-adsorption area without falling due to its own weight due to these factors. becomes possible to perform.

1: Lightweight foreign matter screening system 10: Frame
20: Vibration transfer device 30: Conveyor device for aggregate transfer
40: adsorption conveyor device 47,48: suction pipe
49: Damper 50: Blower
100: Conveyor belt for adsorption 110: Suction hole forming area
111: Suction hole 120,130: Non-suction hole formation area
140: compartment partition 200: impeller structure
210: first circular plate 220: second circular plate
230: Type 1 wing 240: Type 2 wing
300: Housing 310: Base portion
320: side plate portion 330: side edge portion
340: upper edge 350: plate-shaped cover
360: Inlet forming part 370: Exhaust port
380: upper hood part

Claims (11)

In a blower including a motor, an impeller structure, and a housing,
The impeller structure includes first and second circular plates and a plurality of wings interposed between the first and second circular plates and coupled to the first and second circular plates, and accommodated in the inner space of the housing. In combination with the rotation axis of the motor disposed on the first side of the housing, it rotates according to the operation of the motor,
An intake port through which air is sucked is formed on the second side of the housing, the inner space of the housing is formed in a cylindrical shape with a width greater than the width of the impeller structure, and the inner space of the housing has an external outer space upward. An exhaust port that communicates with the space is formed, and the exhaust port is formed in a structure that is open with respect to the vertical radial direction of the impeller structure,
In the impeller structure, a flange through-hole for connecting the rotation shaft of the motor is formed at the center of the first circular plate, and an inlet having a larger diameter than the flange through-hole is formed at the center of the second circular plate. The wings are divided into a plurality of type 1 wings and a plurality of type 2 wings disposed between the type 1 wings,
The first type blade is formed in a plate shape with a curved surface curved toward the direction of rotation, and the plate shape is rectangular in plan view, and the second blade extends from the circumferential area of the second circular plate to the inlet boundary area. disposed to engage with a circular plate, and engage with the first circular plate over an inlet boundary corresponding area of the first circular plate that corresponds to the inlet boundary area of the second circular plate in a circumferential area of the first circular plate. It is placed,
The second type wing is formed in the shape of a plate forming a curved surface curved toward the direction of rotation, and is arranged to engage with the first circular plate from the circumferential area of the first circular plate to the boundary area of the flange through hole, It is disposed to engage with the second circular plate from the circumferential area of the second circular plate to the inlet boundary area, and the curved plate shape of the second type wing is together with the first and second circular plates from a plan view perspective. The part where it is coupled is formed in a rectangular shape, while the part where it is coupled only to the first circular plate is formed in a concave arc shape from the part where it is coupled with the second circular plate to the part where it is coupled with the first circular plate,
In the second circular plate, first fitting holes corresponding to the number of wings are formed adjacent to the circumferential area, and second fitting holes corresponding to the number of wings are formed adjacent to the inlet boundary area,
The first circular plate has first and second fitting holes formed at positions corresponding to the first and second fitting holes of the second circular plate, and the second type wing is adjacent to the flange through hole. A third fitting hole corresponding to the number is formed,
The first type wing has a pair of first fitting protrusions and a pair of second fitting protrusions formed on both sides at positions corresponding to the first and second fitting holes of the first and second circular plates, The first and second fitting protrusions are inserted into the first and second fitting holes of the first and second circular plates, so that the first type wings are coupled to the first and second circular plates,
The second type wing has a pair of first fitting protrusions and a pair of second fitting protrusions formed on both sides at positions corresponding to the first and second fitting holes of the first and second circular plates, One third fitting protrusion is formed on the side at a position corresponding to the third fitting hole of the first circular plate, and the first and second fitting protrusions are formed on the corresponding side of the first and second circular plates. It is inserted into the first and second fitting holes, and the third fitting protrusion is fitted into the third fitting hole of the first circular plate, so that the second type wing is coupled to the first and second circular plates,
The distal end of the first type blade is disposed inside the boundary of the inlet of the second circular plate and exposed to the outside of the inlet in a vertical direction through the inlet, and the arc-shaped portion of the second type blade is The portion is disposed to be exposed to the outside of the inlet in a vertical direction through the inlet,
A blower characterized in that it is employed in an adsorption conveyor device that separates lightweight foreign substances contained in the aggregate mixture derived from landfill soil or construction waste from the aggregate mixture. According to paragraph 1,
The exhaust port has a rectangular cross-section and is connected to the upper hood, wherein the upper hood includes a vertical portion and a horizontal portion formed sequentially from the vertical portion, and air discharged through the exhaust port is discharged from the exhaust port and the upper hood. A blower, characterized in that it rises vertically through the vertical part of the hood and then is horizontally discharged to the outside through the horizontal part of the upper hood. delete According to paragraph 1,
A blower, characterized in that the number of type 1 blades is selected from the range of 4 to 16, and the number of type 2 blades is selected from the range of 2 to 8. According to paragraph 1,
A blower, characterized in that the number of type 1 blades is 8, and the number of type 2 blades is 4. According to paragraph 1,
A blower, characterized in that a plurality of bolt through holes are formed around the flange through hole in the first circular plate. According to clause 6,
A flange is inserted into the flange through-hole of the first circular plate, and the flange has a rotating shaft through-hole into which the rotating shaft of the motor is inserted, and a bolt coupling hole or coupling groove corresponding to the bolt through-hole of the first circular plate. , A blower characterized in that it has a structure in which a plurality of bolts penetrate the bolt through hole of the first circular plate and are fastened to the bolt coupling hole or coupling groove of the flange, so that the flange is coupled to the first circular plate. . delete According to paragraph 1,
The type 1 and type 2 wings form a curved surface with the same radius of curvature, and the overall curve of the type 1 wing is 70 degrees, while the overall curve of the type 2 wing is 100 degrees. A blower that does. According to clause 9,
A blower, characterized in that the radius of curvature of the type 1 and type 2 blades is in the range of 230 to 260 mm based on the inner surface of the blades. According to paragraph 1,
A chamfer is formed by chamfering the entire thickness at the end corner of the type 1 wing exposed to the outside at the inlet, that is, the part where the lower side and the side side meet, and the chamfer portion corresponding to the chamfer of the type 1 wing is formed. A blower, characterized in that the corresponding part of the second type blade is also disposed inside the boundary of the inlet of the second circular plate and exposed to the outside of the inlet in the vertical direction through the inlet.