WO2021133118A1

WO2021133118A1 - Stirrer blade having improved stirring efficiency

Info

Publication number: WO2021133118A1
Application number: PCT/KR2020/019137
Authority: WO
Inventors: 이명렬; 이목도; 정성엽; 문준수
Original assignee: 주식회사 환경에너지오앤엠
Priority date: 2019-12-26
Filing date: 2020-12-24
Publication date: 2021-07-01
Also published as: KR102121520B1

Abstract

The present invention relates to a stirrer blade having improved stirring efficiency. According to the present invention, material being stirred in a stirring space can be efficiently stirred, and the material being stirred can be easily moved from one side of the stirring space to the other side. Also, according to an embodiment of the present invention, all material being stirred in a stirring space can be efficiently stirred by moving material that is not being properly stirred in the vicinity of a rotary shaft part to the outside in the radial direction where a main impeller part is located.

Description

Stirring blade with improved stirring efficiency

The present invention relates to a stirring blade with improved stirring efficiency.

Recently, the amount of organic waste is increasing with industrial development, and in particular, organic waste is generated in large quantities due to industrialization and commercialization of the livestock industry.

For example, food waste is increasing every year, and more specifically, the discharged food waste has a high salinity and may cause serious environmental pollution if it is buried or dumped in the soil as it is.

Accordingly, the treatment of various organic wastes including food waste is emerging as a big social problem.

On the other hand, recently, research for efficiently treating such various organic wastes is being actively conducted. Among them, research for producing compost or biogas by fermenting organic wastes in a short time using aerobic microorganisms is actively conducted. is in progress

For example, Korean Patent No. 10-1190186 (registration date: October 05, 2012) discloses a "vertically sealed high-speed fermenter".

This Korean patent is a technology for supplying warm air to the inside of the fermenter through a heater from the top of the fermenter, in which the air supply device is installed at the lower and upper parts of the fermenter, the flange is installed on the rotating shaft, and then the blade is assembled.

However, according to the Korean Patent Registration, the waste inside the stirring space cannot be efficiently moved to the waste discharge space due to the characteristic in which a plurality of impellers are formed long in the transverse direction on one rotating shaft, and it is suitable for the characteristics of each section of the stirring space. There is a problem that the speed of each impeller cannot be controlled.

Accordingly, the present invention has been devised in the background described above, and an object of the present invention is not only to efficiently stir the stirring material accommodated in the stirring space, but also to enable the stirring to easily move the stirring material from one side of the stirring space to the other. An object of the present invention is to provide a stirring blade with improved efficiency.

In addition, an object of the present invention is to easily replace the broken agitation shaft by a certain section, so maintenance is simple, and the rotational speed of the main impeller unit and the auxiliary impeller connected to the stirring shaft and the stirring shaft can be set differently for each section of the stirring space. An object of the present invention is to provide a stirring blade with improved stirring efficiency.

The object of the present invention is not limited thereto, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve this object, an embodiment of the present invention includes a rotating shaft portion 100 formed in a first direction (x); a main impeller unit 200 extending in a second direction (y) intersecting the first direction (x) from one side of the outer peripheral surface of the rotating shaft unit 100 to stir the stirring material accommodated in the stirring space; And extending in the second direction (y) from the other side of the outer peripheral surface of the rotating shaft part 100 to stir the stirring material, but stirring the stirring material that is not stirred by the main impeller unit 200 in the stirring space Stirring efficiency, characterized in that it comprises a; auxiliary impeller part 300 configured to be different from the main impeller part 200 in the second direction (y) length with respect to the rotation shaft part 100 to be able to do it. This provides an improved stirring blade.

According to an embodiment of the present invention, the stirring material accommodated in the stirring space can be efficiently stirred, and the stirring material can be easily moved from one side of the stirring space to the other side.

In addition, according to an embodiment of the present invention, it is possible to efficiently stir the entire stirring material accommodated in the stirring space by moving the stirring material that is not smoothly stirred in the vicinity of the rotating shaft part in the radial direction where the main impeller is located.

In addition, according to an embodiment of the present invention, as the organic waste is stirred and fermented for a long time, it is possible to reduce the volume of the stirring material by hitting the bubbles formed on the upper surface of the stirring material.

And, according to an embodiment of the present invention, the broken agitation shaft can be easily replaced for each section, so maintenance is simple, and the main impeller unit and the auxiliary impeller unit connected to the stirring shaft and the stirring shaft are rotated for each section of the stirring space. You can set different speeds.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a stirring blade having improved stirring efficiency according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the stirring shaft and the shaft connecting member of FIG. 1 .

3 is a perspective view of a main impeller unit and an auxiliary impeller unit according to an embodiment of the present invention.

4 and 5 are views showing the main impeller unit and the auxiliary impeller unit of FIG. 3 in various directions.

[Correction under Rule 91 16.02.2021]
6 is a view showing an embodiment in which the stirring blade with improved stirring efficiency according to an embodiment of the present invention is applied to the stirring space.

[Explanation of code]

10: agitating blade with improved agitation efficiency

100: rotation shaft part

110: stirring shaft

120: shaft connection member

121: first connecting member

122: second connection member

123: first housing

124: first shaft connecting gear

125: second housing

126: second shaft connecting gear

200: main impeller part

210: first impeller

211: shaft coupling hole

212: shaft coupling part

213: expansion panel part

214: round panel part

220: first bending wing

230: border line

300: auxiliary impeller unit

310: second impeller

320: second bending wing

330: border line

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. When a component is described as being “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. It should be understood that elements may be “connected,” “coupled,” or “connected.”

1 is a perspective view of a stirring blade having improved stirring efficiency according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the stirring shaft and the shaft connecting member of FIG. 1 . 3 is a perspective view of a main impeller unit and an auxiliary impeller unit according to an embodiment of the present invention. 4 and 5 are views showing the main impeller unit and the auxiliary impeller unit of FIG. 3 in various directions. 5 is a view showing an embodiment in which the stirring blade with improved stirring efficiency according to an embodiment of the present invention is applied to the stirring space.

As shown in these drawings, the stirring blade 10 with improved stirring efficiency according to an embodiment of the present invention includes a rotating shaft portion 100 formed in a first direction (x); a main impeller unit 200 extending in a second direction (y) intersecting the first direction (x) from one side of the outer circumferential surface of the rotating shaft unit 100 to stir the stirring material accommodated in the stirring space; And extending in the second direction (y) from the other side of the outer peripheral surface of the rotating shaft part 100 to stir the stirring material, so as to stir the stirring material that is not stirred by the main impeller unit 200 in the stirring space, the rotating shaft part It is characterized in that it comprises a; the second direction (y) length relative to (100) is configured differently from the main impeller part 200 and the auxiliary impeller part 300.

Here, the stirring blade 10 with improved stirring efficiency according to an embodiment of the present invention can stir various stirring materials, but below, an embodiment of the present invention is organic waste including food waste, livestock manure, wastewater, etc. It will be described in detail through an example of stirring.

First, the rotating shaft part 100 is formed to be elongated in the first direction (x).

In addition, the rotating shaft part 100 is provided with the main impeller part 200 on one side of the outer peripheral surface, and the auxiliary impeller part 300 is provided on the other side of the outer peripheral surface.

Here, the rotating shaft unit 100 is rotated together with the main impeller unit 200 and the auxiliary impeller unit 300 by receiving a driving force from a driving unit (not shown).

On the other hand, the rotating shaft unit 100 is provided with a plurality of main impeller unit 200 and the auxiliary impeller unit 300 along the longitudinal direction, this rotating shaft unit 100 along the movement direction of the stirring material inside the stirring space. It can be placed long.

When describing the structure of the rotating shaft unit 100 in more detail, the rotating shaft unit 100 includes a plurality of stirring shafts 110 having a main impeller unit 200 and an auxiliary impeller unit 300 on each outer circumferential surface; and a shaft connection member 120 connecting the plurality of stirring shafts 110 so that the plurality of stirring shafts 110 can rotate at different speeds.

First, the plurality of stirring shafts 110 is provided with a main impeller unit 200 on one side of each outer circumferential surface, and an auxiliary impeller unit 300 is provided on the other side of each outer circumferential surface.

The shaft connecting member 120 is a first connecting member 121 to which any one of the plurality of stirring shafts 110 is coupled and the other one of the plurality of stirring shafts 110. It includes a second connection member 122 to which it is coupled.

The first connecting member 121 is rotatably coupled to the hollow of the first housing 123 and the first housing 123 having a hollow inside in the axial direction, and the stirring shaft 110 is fixedly coupled to an end thereof. It includes a first shaft connection gear 124 in which a groove (h) is formed.

Here, one end of the first housing 123 is coupled to a second housing 125 to be described later to rotatably constrain the first shaft connecting gear 124 .

In addition, the first shaft connecting gear 124 has a shaft coupling groove (h) to which the stirring shaft 110 is coupled to one end is recessed, and a first gear unit (not shown) is provided at the other end.

Then, the second connection member 122 is rotatably coupled to the hollow of the second housing 125 and the second housing 125 having a hollow inside in the axial direction, and the stirring shaft 110 is fixedly coupled to the end. and a second shaft coupling gear 126 having shaft coupling grooves formed therein.

Here, either end of the second housing 125 is coupled to the first housing 123 to rotatably constrain the second shaft connection gear 126 .

[Correction under Rule 91 16.02.2021]
In addition, the second housing 125 is formed with a hollow inside in the axial direction. When the first housing 123 is coupled, the hollow formed inside communicates with the hollow formed in the first housing 123 .

In addition, the second shaft connecting gear 124 has a shaft coupling groove (not shown) to which the stirring shaft 110 is coupled at one end is recessed, and the second gear is rotated in engagement with the first gear at the other end. A portion (not shown) is provided.

In this case, the first gear unit and the second gear unit may be configured such that the gear ratios are set to be different from each other so that the plurality of stirring shafts 110 are rotated at different speeds.

As such, in one embodiment of the present invention, the rotating shaft part 100 includes a plurality of divided stirring shafts 110 and a shaft connection member 120 connecting the divided stirring shafts 110, thereby breaking for each predetermined section. The agitation shaft 110 can be easily replaced, which has the advantage of simple maintenance.

In addition, in one embodiment of the present invention, as the gear ratios of the first shaft coupling gear 124 and the second shaft coupling gear 126 for rotatably connecting the plurality of stirring shafts 110 to each other are set to be different from each other, the stirring The rotation speed of the stirring shaft 110 can be set differently for each section of space (S1, S2, S3, S4).

For example, when the stirring material (organic waste) is introduced into the first stirring space (S1) formed on one side of the stirring space and discharged to the fourth stirring space (S4) formed on the other side of the stirring space, the first first stirring space The second stirring space (S2), the third stirring space (S3), and the fourth stirring space (S4) moved while being stirred by the stirring material introduced into (S1) and the main impeller part 200 and the auxiliary impeller part 300 ), the agitation degree of the agitated material may be different.

That is, in the embodiment of the present invention, the rotating shaft part 100 provided in the first stirring space S1 to the fourth stirring space S4, the main impeller to match the degree or characteristics of the stirring material for each section of the stirring space. The rotation speed of the unit 200 and the auxiliary impeller unit 300 may be set differently.

Subsequently, the main impeller part 200 of the present invention is provided on one side of the outer circumferential surface of the rotation shaft part 100, and extends from the rotation shaft part 100 in the second direction (y) intersecting the first direction (x). Stir the stirring material inside the stirring space.

A plurality of the main impeller unit 200 may be provided to be spaced apart from each other at a predetermined interval along the rotation shaft unit 100, whereby an embodiment of the present invention provides a stirring material, one side (S1) of the stirring space into which the stirring material is introduced. It becomes possible to move to the other side (S4) of the stirring space from which the stirring material is discharged.

On the other hand, the main impeller part 200 has at least one surface on the first plane (yz) formed by the second direction (y) and the third direction (z) intersecting the first and second directions (x, y) is formed in

Here, the first plane yz formed by the second direction y and the third direction z may be formed to face the rotation direction of the rotation shaft 100 .

When describing the structure of the main impeller part 200 in detail, the main impeller part 200 extends from one side of the outer peripheral surface of the rotation shaft part 100, and at least one surface is formed on the first plane yz. a first impeller 210 to be; and a first bending blade 220 bent at a predetermined angle from the first impeller 210 to move the stirring material from one side of the stirring space to the other side.

The first impeller 210 is formed with a shaft coupling hole 211 extrapolated to the outer peripheral surface of the rotating shaft portion (100).

In addition, as described above, the first impeller 210 has at least one surface formed on the first plane yz. For example, as shown in the figure, both front and rear both sides are formed on the basis of the first direction (x). It may be formed parallel to one plane (yz).

When the first impeller 210 is described in more detail with reference to FIG. 3 , the first impeller 210 has a shaft coupling hole 211 formed therein in the second direction (y) with respect to the shaft coupling hole 211 . The shaft coupling part 212 extending to the axial coupling part 212 and the extension panel part 213 extending in the second direction (y) while extending one end in the height direction (third direction (z)) from the shaft coupling part 212 and the expansion It includes a round panel part 214 extending from the panel part 213 in the second direction (y) and having an end having a predetermined curvature and formed to be rounded.

Here, in the expanded panel unit 213 and the round panel unit 214, a boundary line 230 extending while the first bending wing 220 is bent is formed on the other side in the height direction (third direction (z)). The boundary line 230 may extend from the other end in the height direction of the shaft coupling unit 212 to the end of the round panel unit 214 while being inclined downwardly between the second direction (y) and the third direction (z). .

Subsequently, the first bending blade 220 is bent and extended at a predetermined angle A1 from the first impeller 210 to move the stirring material from one side (S1) of the stirring space to the other side (S4).

In addition, the first bending blade 220 is bent and extended at a predetermined angle from the first impeller 210, so that as the organic waste is stirred and fermented for a long time, it strikes the bubble (B) formed on the upper surface of the organic waste to strike the stirring material can reduce the volume of

That is, the main impeller unit 200 according to an embodiment of the present invention may be arranged such that a portion of the region is exposed to the upper side of the stirring material during rotation. As such, the partial region of the main impeller unit 200 is positioned above the stirring material. As it is disposed to be exposed, the above-described first bending wings 220 may strike the bubbles (B) formed on the upper surface of the organic waste to reduce the volume of the stirring material.

On the other hand, the first bending wing 220 may be bent and extended at a predetermined angle A1 from the boundary line 230 described above, wherein the predetermined angle A1 may be 10° or more and 30° or less.

Subsequently, the auxiliary impeller unit 300 according to an embodiment of the present invention is extended in the second direction (y) from the other side of the outer peripheral surface of the rotating shaft unit 100 to stir the stirring material.

In addition, the auxiliary impeller unit 300 is configured differently from the main impeller unit 200 in the second direction (y) length with respect to the rotation shaft unit 100, and is stirred by the main impeller unit 200 in the stirring space. It is possible to stir the stirring material that does not work.

More specifically, the auxiliary impeller unit 300 has a length in the second direction (y) smaller than that of the main impeller unit 200 so as to stir the inner region of the stirring space that is not stirred by the main impeller unit 200 . characterized by being

That is, according to an embodiment of the present invention, the main impeller part 200 is formed to be elongated in the second direction (y) with respect to the rotation shaft part 100, and agitation inside the radial direction with respect to the rotation shaft part 100 is provided. The material may not be stirred smoothly. At this time, the auxiliary impeller part 300 having a smaller length in the second direction (y) compared to the main impeller part 200 is stirred in the radial direction with respect to the rotating shaft part 100 . This will agitate the material.

On the other hand, the auxiliary impeller unit 300 according to an embodiment of the present invention is characterized in that at least one surface is formed on the second plane xy formed by the first direction (x) and the second direction (y). do it with

Here, the second plane xy may be formed in a direction perpendicular to the first plane yz.

That is, at least one side of the auxiliary impeller unit 300 is formed on the second plane xy formed substantially perpendicular to the rotation direction of the rotating shaft unit 100 , so that it smoothly approaches the rotating shaft unit 100 . It serves to move the agitated material that is not stirred, radially outward in which the main impeller unit 200 is located so as to be smoothly stirred by the main impeller unit 200 .

When describing the structure of the auxiliary impeller unit 300 in more detail, the auxiliary impeller unit 300 extends from the other side of the outer circumferential surface of the rotating shaft unit 100, and at least one surface is formed on the second plane. 2 impeller 310; and a second bending blade 320 bent at a predetermined angle from the second impeller 310 to move the stirring material from one side (S1) to the other side (S4) of the stirring space.

First, the second impeller 310 extends from the end of the shaft coupling part 212 of the main impeller part 200 described above in the second direction y away from the rotation shaft part 100 .

Here, as described above, the second impeller 310 is formed on a second plane xy formed substantially perpendicular to the first plane yz, at least one side thereof. For example, as shown in FIG. Both front and rear side surfaces in the first direction (x) may be formed parallel to the second plane (xy).

The second impeller 310 is formed on the same plane as the second plane xy, and serves to move the stirring material inside the radial direction with respect to the rotation shaft 100 to the outside in the radial direction.

Next, the second bending blade 320 is bent at a predetermined angle A2 based on the boundary line 330 formed to be inclined between the first direction (x) and the second direction (y) at the end of the second impeller 310 . to move the stirring material from one side (S1) to the other side (S4) of the stirring space.

Here, the predetermined angle A2 at which the second bending blade 320 is bent with respect to the boundary line 330 may be 10° or more and 30° or less.

As such, according to the auxiliary impeller unit 300 according to an embodiment of the present invention, the stirring material located in the radial direction with respect to the rotation shaft unit 100 is formed in parallel with the second plane (xy) second impeller ( 310) while moving radially outward along either side of the stirring space along either side of the second bending blade 320 bent at a predetermined angle A2 from the second impeller 310 at one side (S1) of the stirring space can be moved to the other side (S4).

Here, the auxiliary impeller unit 300 according to an embodiment of the present invention may be provided with a plurality of spaced apart from each other by a predetermined interval along the rotation shaft unit 100, similarly to the main impeller unit 200, thereby providing an embodiment of the present invention. In an example, the stirring material can be easily moved from one side (S1) to the other side (S4) of the stirring space.

As described above, according to one embodiment of the present invention, not only can the stirring material accommodated in the stirring space be efficiently stirred, but also the stirring material can be easily moved from one side (S1) to the other side (S4) of the stirring space. can

In addition, an embodiment of the present invention is to efficiently stir the entire stirring material accommodated in the stirring space by moving the stirring material that is not smoothly stirred in the vicinity of the rotating shaft part 100 in the radial direction where the main impeller part 200 is located. can

In addition, according to an embodiment of the present invention, as the organic waste is stirred and fermented for a long time, it is possible to reduce the volume of the stirring material by hitting the bubble (B) formed on the upper surface of the organic waste.

And, according to an embodiment of the present invention, the rotating shaft part 100 includes a plurality of divided stirring shafts 110 and a shaft connecting member 120 connecting the divided stirring shafts 110, so that a certain section The broken stirring shaft 110 can be easily replaced, so maintenance is simple, and the main impeller unit 200 and the auxiliary impeller unit connected to the stirring shaft 110 and the stirring shaft 110 for each section of the stirring space ( 300) can be set differently.

In the above, even though all the components constituting the embodiment of the present invention are described as being combined or operating in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more.

In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be embedded, unless otherwise stated, so that other components are excluded. Rather, it should be construed as being able to further include other components. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the meaning of the context of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

The present invention is applicable to the field of treatment of various organic wastes.

Claims

a rotation shaft portion 100 formed in a first direction (x);

a main impeller unit 200 extending in a second direction (y) intersecting the first direction (x) from one side of the outer peripheral surface of the rotating shaft unit 100 to stir the stirring material accommodated in the stirring space; and

It extends in the second direction (y) from the other side of the outer circumferential surface of the rotating shaft part 100 to stir the stirring material, but to stir the stirring material that is not stirred by the main impeller unit 200 in the stirring space. an auxiliary impeller unit 300 configured to have a length different from that of the main impeller unit 200 in the second direction (y) with respect to the rotation shaft unit 100;

Agitating blades with improved agitation efficiency, comprising:
According to claim 1,

The main impeller unit 200,

At least one surface is formed on the first plane formed by the second direction (y) and the third direction (z) intersecting the first and second directions (x, y),

The auxiliary impeller unit 300,

Stirring blade with improved stirring efficiency, characterized in that at least one surface is formed on the second plane formed by the first direction (x) and the second direction (y).
3. The method of claim 2,

The main impeller unit 200,

a first impeller 210 extending from one side of the outer circumferential surface of the rotating shaft part 100 and having at least one surface formed on the first plane; and

a first bending blade 220 bent at a predetermined angle from the first impeller 210 to move the stirring material from one side of the stirring space to the other side;

Agitating blades with improved agitation efficiency, comprising:
3. The method of claim 2,

The auxiliary impeller unit 300,

a second impeller 310 extending from the other side of the outer peripheral surface of the rotating shaft part 100 and having at least one surface formed on the second plane; and

a second bending blade 320 bent at a predetermined angle from the second impeller 310 to move the stirring material from one side of the stirring space to the other side;

Agitating blades with improved agitation efficiency, comprising:
According to claim 1,

The main impeller part 200 and the auxiliary impeller part 300 are,

Stirring blade with improved stirring efficiency, characterized in that a plurality of the stirring material is provided along the rotating shaft part (100) so that the stirring material is stirred while being moved from one side to the other side of the stirring space.
6. The method of claim 5,

The rotating shaft part 100,

A plurality of stirring shafts 110 provided with the main impeller unit 200 and the auxiliary impeller unit 300 on each outer circumferential surface; and

a shaft connecting member 120 connecting the plurality of stirring shafts 110 so that the plurality of stirring shafts 110 can rotate at different speeds;

Agitating blades with improved agitation efficiency, comprising:
According to claim 1,

The auxiliary impeller unit 300,

Stirring efficiency, characterized in that the length in the second direction (y) is smaller than that of the main impeller part 200 so as to stir the inner region of the stirring space that is not stirred by the main impeller part 200 . This improved stirring blade.