KR102514228B1 - Biomass Drying Device - Google Patents

Abstract

The present invention relates to a biomass drying device, which can save energy costs used for drying. More specifically, the biomass drying device comprises: a dryer body unit (100) which heats biomass containing a certain amount of moisture to remove the moisture; and a heat source supply unit (200) for supplying heat wind to the dryer body unit (100). The dryer body unit (100) comprises: a cylindrical outer housing (110) which is horizontally located, is provided with a first exhaust pipe (111) at one side thereof, and is provided with a first discharge pipe (112) at the other side thereof; a first rotating drum (120) which is located inside the outer housing (110) and rotates at a certain speed; an inner housing (130) which is located inside the first rotating drum (120); a second rotating drum (140) which is located inside the inner housing (130) and is formed in a cylindrical shape to rotate at a certain speed and allow a heat source to be introduced inside; side plates (150) which are located on both side surfaces of the first rotating drum (120), respectively, and consist of a first side plate (151) provided with a first raw material inlet (151a) and a second side plate (152); a second exhaust pipe (160) which is located in a state of penetrating the second side plate (152); and a first support frame (190).

Description

Biomass Drying Device {Biomass Drying Device}

The present invention relates to a biomass drying apparatus, and more particularly, to a biomass drying apparatus for drying livestock manure.

Livestock manure, which can be classified as an organic resource, has great value if managed efficiently, but can cause environmental pollution if not. The number of farm households and breeding heads in Korea decreased significantly from 192,000 households and 1,819,000 heads in 2005 to 104,000 households and 2,759,000 heads in 2014. do.

As such, the farmland area for using Korean cattle manure as organic compost is continuously decreasing, while the number of Korean cattle raised continues to increase, resulting in an imbalance between supply and demand in the amount of production and use of cow manure.

Therefore, active attempts are being made to utilize cow manure as an energy source or a useful resource by carbonizing it along with continuous utilization as organic compost.

On the other hand, biochar is also called biochar, and since it can be used for various purposes, attention is focused on its function and importance.

Biochar can be produced naturally or synthetically. Naturally produced biochar captures carbon dioxide in the soil and accumulates it for a long period of time, thereby preventing global warming and contributing to the creation of vegetation. there is. In addition, biochar produced by artificial synthesis can be produced, for example, through a pyrolysis process of biomass, and various effects such as an anion source, humidity control, warming effect, and antioxidant effect can be expected.

In general, in order to artificially produce biochar, organic materials are thermally decomposed by indirect heating by an external heating source in an anoxic or hypoxic atmosphere.

However, it is pointed out as a major obstacle that the moisture contained in the organic waste must be removed and dried before the pyrolysis process, and a large amount of energy is required for this.

Korean Patent Publication No. 2016-0093290 Korean Patent Publication No. 2014-0070273 Korean Patent Publication No. 2015-0096349 Korean Patent Publication No. 2013-0088682

The present invention has been made to solve the above problems, and an object of the present invention is to provide a biomass drying apparatus for removing moisture from livestock meal, which is an organic waste resource.

Another object of the present invention is to provide a biomass drying apparatus capable of minimizing energy consumption during the drying process.

In addition, an object of the present invention is to provide a biomass drying apparatus that can reduce the installation site because it has a compact structure.

Biomass drying apparatus according to the present invention for solving the above problems, the dryer body portion 100 for removing moisture by heating the biomass containing a certain amount of moisture; and a heat source supply unit 200 for supplying hot air to the dryer body unit 100, wherein the dryer body unit 100 has a first exhaust pipe 111 on one side and a first discharge pipe 112 on the other side. ) is provided with a cylindrical outer housing 110 positioned horizontally; A first rotary drum 120 rotating at a constant speed while being located inside the outer housing 110; an inner housing 130 positioned inside the first rotary drum 120; a second rotary drum 140 positioned inside the inner housing 130 and rotated at a constant speed and having a cylindrical shape so that a heat source can be introduced into the inside; A first side plate 151 located on one side of the first rotary drum 120 and equipped with a first raw material inlet 151a, a second side plate 152 located on the other side of the first rotary drum 120, and side plates 150 made of hollow disk plates 153 fixed to both ends of the first rotating drum 120; a second exhaust pipe 160 positioned in a state penetrating the second side plate 152; And it is characterized in that it comprises a first support frame (190).

In addition, in the biomass drying apparatus according to the present invention, the first rotary drum 120 includes a spiral first transfer blade 121 provided along the longitudinal direction of the outer surface, and a plurality of first transfer blades 121 provided along the longitudinal direction of the inner surface. It includes a stirring blade 122 and one or more first openings 123 near one side edge, and the inner housing 130 has a second opening 131 formed on the bottom surface, while a third opening ( 132) is provided, and the second rotary drum 140 includes a spiral-shaped second transfer blade 141 provided along the longitudinal direction of the outer surface, and a fourth opening 142 at one end edge. do.

In addition, in the biomass drying apparatus according to the present invention, the first driving unit 170 and the second driving unit 180 for rotating the first rotary drum 120 and the second rotary drum 140 are further included, , The first drive unit 170 includes a first motor 171, a first chain 172 connected to the first motor 171, and a first drive shaft 173 rotated by the first chain 172. , And a plurality of rollers 174 in close contact with the outer surface of the first rotary drum 120 while being fastened to the first driving shaft 173, the second driving unit 180, the second motor 181 ), and a second drive shaft 182 having one side connected to the second motor 181 and the other side connected to the second rotary drum 140.

In addition, in the biomass drying apparatus according to the present invention, the heat source supply unit 200 is characterized in that the heat source is supplied to the inside of the second rotary drum 140.

In addition, in the biomass drying apparatus according to the present invention, a first conduit L1 connecting the second exhaust pipe 160 and the heat source supply unit 200 is further provided.

In addition, in the biomass drying apparatus according to the present invention, it is characterized in that the first purifier 300 including the first cyclone 310 and the condenser 320 is located in the first conduit (L1).

In addition, in the biomass drying apparatus according to the present invention, a second conduit L2 is connected to the first exhaust pipe 111, and a second cyclone 410, a filter 420 and a filter 420 are connected to the second conduit L2. It is characterized in that the second purification unit 400 in which the scrubber 430 is sequentially disposed is located.

In addition, in the biomass drying apparatus according to the present invention, the biomass is characterized in that the livestock.

According to the biomass drying apparatus of the present invention, there is an advantage that dried products can be produced even when using livestock meal containing a large amount of moisture.

In addition, according to the biomass drying apparatus of the present invention, since the energy source generated in the drying process can be used as a heat source, there is an advantage in that energy costs used during drying can be saved.

1 is a conceptual diagram of a biomass drying apparatus according to a preferred embodiment of the present invention.
2 is a front view of a dryer body constituting a biomass drying apparatus.
3 is a perspective view of a dryer body viewed from one direction.
4 is a perspective view of a dryer body viewed from the other direction.
5 is a perspective view of the dryer body shown in FIG. 3 cut along the longitudinal direction;
6 is a perspective view of the dryer body shown in FIG. 4 cut along the longitudinal direction;
FIG. 7 is a front view of the dryer body shown in FIG. 2 cut along the longitudinal direction;
8 is an exploded perspective view of the dryer body shown in FIG. 3;
9 is a cross-sectional view of the dryer body shown in FIG. 2 taken along the width direction.
10 is a front view of the dryer body shown in FIG. 2 viewed from one direction.
FIG. 11 is a front view of the dryer body shown in FIG. 2 viewed from the other direction.

In this application, terms such as "comprise", "have" or "have" are intended to indicate that there is a feature, number, step, component, part, or combination thereof described in the specification, but one or more other It should be understood that it does not preclude the possibility of addition or existence of features, numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, it should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, a biomass drying apparatus according to the present invention will be described with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components are omitted.

In the present invention, biomass is defined as livestock manure, more precisely, as cattle manure, but is not necessarily limited thereto.

1 is a conceptual diagram of a biomass drying apparatus according to a preferred embodiment of the present invention. As shown in FIG. 1, the biomass drying apparatus of the present invention includes a dryer body 100 that removes moisture by heating biomass containing a certain amount of moisture, and a heat source supply unit 200 for drying biomass. A first purifier 300 for removing moisture discharged from the dryer body 100, and a second purifier 400 for removing air pollutants such as sulfur oxides and dust discharged from the dryer body 100 It can be configured to include.

Figure 2 is a front view of the dryer body constituting the biomass drying device, Figure 3 is a perspective view of the dryer body viewed from one direction, Figure 4 is a perspective view of the dryer body viewed from the other direction, Figure 5 is the dryer body shown in FIG. 6 is a perspective view of the dryer body shown in FIG. 4 cut along the length direction, and FIG. 7 is a front view of the dryer body shown in FIG. 2 cut along the length direction. 8 is an exploded perspective view of the dryer body shown in FIG. 3, FIG. 9 is a cross-sectional view of the dryer body shown in FIG. 2 taken along the width direction, and FIG. 10 is a front view of the dryer body shown in FIG. 2 viewed from one direction. 11 is a front view of the dryer body shown in FIG. 2 viewed from the other direction.

The dryer body 100 will be described in detail with reference to FIGS. 2 to 11 .

The dryer body 100 of the present invention includes an outer housing 110, a first rotary drum 120, an inner housing 130, a second rotary drum 140, a pair of side plates 150, a second exhaust pipe ( 160), a first driving unit 170, a second driving unit 180, and a first support frame 190.

The outer housing 110 forming the outside of the dryer body has a cylindrical shape with open front and rear surfaces and a predetermined length, and is positioned parallel to the ground in the longitudinal direction. At this time, a first exhaust pipe 111 is provided on one side of the upper part for guiding gaseous substances and particulate matter generated in the drying process to the outside, and on one side of the lower part, the dried biomass (hereinafter referred to as 'dried matter') is discharged. A first discharge pipe 112 is provided.

In addition, a pair of side walls 113 are provided on the front and rear edges toward the inner side, that is, in the direction of the imaginary center line, which allows the biomass transported by the first rotary drum 120, that is, the raw material to be discharged through the first discharge pipe 112. ) It is a configuration for blocking the spaced apart space between the outer housing 110 and the first rotary drum 120 from the outside so that it can be discharged only to the outside. Of course, since the outer housing 110 is fixed while the first rotary drum 120 must rotate, the end of the side wall 113 and the outer surface of the first rotary drum 120 are slightly spaced apart.

The first rotary drum 120 has a cylindrical shape with an inside and rotates at a constant speed while located inside the outer housing 110 . The outer surface of the first rotating drum 120 is provided with a spiral first transfer blade 121 provided along the longitudinal direction in order to transfer the raw material in one direction, while the inner surface is provided so as to mix the first raw material. A plurality of plate-shaped first stirring blades 122 are provided.

In addition, a first opening 123 is formed near one edge to discharge the mixed and transported raw materials to a space separated from the outer housing 110.

The inner housing 130 is located inside along the longitudinal direction of the first rotating drum 120, and the inner housing 130 also has a hollow inside and has a columnar shape with both sides blocked. At this time, the vertical cross section of the inner housing 130 has a shape in which two circles having different radii of curvature are connected. In detail, the inner diameter of the lower circle is larger than the inner diameter of the upper circle, and these two circles are connected to each other. is to secure

On the other hand, a second opening 131 is formed near one edge of the bottom surface of the inner housing 130 to discharge the mixed and transferred raw materials to the first rotary drum 120, while the high-temperature hot air blows through the first rotation on the side. A third opening 132 is formed to move to the drum 120 . Of course, it is obvious that hot air can move through the second opening 131 as well.

The second rotary drum 140 is a place where hot air, more specifically, hot air heated to approximately 500 to 700° C. is introduced from the outside to dry the first raw material, and the input raw material is primarily contacted.

To this end, the second rotary drum 140 is located inside along the length direction of the inner housing 130 and rotates at a constant speed in a cylindrical shape with an empty inside.

Here, in order to move the supplied raw material in one direction, the outer surface is provided with a spiral second transfer blade 141 along the longitudinal direction. In addition, one end is open so that hot air can be supplied to the inner space of the second rotary drum 140, but the opposite end is sealed. Of course, the fourth opening 142 is formed on the side near the sealed end so that the supplied hot air can move to the inner housing 130 after passing through the entire inside of the second rotary drum 140 .

The side plate 150 may include a first side plate 151 , a second side plate 152 and a pair of hollow disk plates 153 . The first side plate 151 and the second side plate 152, each having an outer diameter smaller than the inner diameter of the first rotary drum 120, are located on both open sides of the first rotary drum 120 to minimize contact with the outside air. On the other hand, the outer surface is bound to the first support frame (190).

At this time, the first side plate 151 is provided with a first raw material inlet 151a, the inlet of which is exposed to the outside, in order to input the first raw material having a certain amount of moisture.

A pair of hollow disk plates 153 are fixed to both ends of the first rotary drum 120 in a flange shape, and the inner edge of the hollow disk plate 153 is part of the outer edge of the first side plate 151 and the second side plate 152. It is positioned so as to overlap with a certain distance, for example, several mm apart.

Therefore, while the hollow plate 153 is fixed at both ends, the first rotary drum 120 continuously rotates, but the first side plate 151 and the second side plate 152 do not rotate, and the external air and the first rotation The movement of the hot air inside the drum 120 is blocked as much as possible by the hollow plate 153.

Of course, as described above, since the inner edge of the hollow plate 153 and some of the outer edges of the first side plate 151 and the second side plate 152 are slightly spaced apart from each other, some external air is generated according to the internal pressure of the first rotary drum 120. It is obvious that the inflow or internal air may leak out.

When a raw material with a high moisture content is primarily dried, the exhaust gas contains a large amount of water vapor and combustible gas, for example, hydrocarbons such as methane, carbon monoxide and hydrogen. In order to quickly dry the raw material, it is necessary to discharge the separated water vapor to the outside, and in particular, combustible gas can be usefully utilized as a heat source.

To this end, it is preferable to provide a second exhaust pipe 160 disposed in a shape penetrating the second side plate 152 so that one side is located in the space of the inner housing 130 while the other side is exposed to the outside.

The first driving unit 170 is configured to rotate the first rotary drum 120 at a constant speed, and includes a first motor 171, a first chain 172 connected to the first motor 171, and a first chain ( It may be composed of a first drive shaft 173 rotated by 172, and a plurality of rollers 174 in close contact with the outer surface of the first rotary drum 120 while being fastened to the first drive shaft 173.

In addition, the second drive unit 180 is configured to rotate the second rotary drum 140 at a constant speed, and the second motor 181 and one side are connected to the second motor 181 and the other side is the second rotary drum It may be composed of a second drive shaft 182 connected to 140.

Of course, as long as the first rotary drum 120 and the second rotary drum 140 can be rotated, respectively, the above-described first driving unit 170 and the second driving unit 180 can be changed as much as possible.

The first support frame 190 includes the aforementioned outer housing 110, the first rotary drum 120, the inner housing 130, the second rotary drum 140, the first raw material inlet 150, and the second exhaust pipe ( 160), the first driving unit 170, and the second driving unit 180 are supported.

Describing the operation and drying process of the dryer configured as described above, hot air necessary for drying is supplied to the inside of the second rotary drum 140, while biomass as a raw material is introduced through the raw material inlet 151a. .

After the hot air for drying is introduced into the inner space of the second rotating drum 140, it moves to the inner housing 130 through the fourth opening 142, and the hot air moved to the inner housing 130 moves to the third opening 132. ) is introduced into the inner space of the first rotary drum 120. Subsequently, the hot air of the first rotary drum 120 passes through the first opening 123 and then is discharged to the outside via the first exhaust pipe 111 of the outer housing 110 .

When the biomass is supplied through the raw material inlet 150, it is preferentially dried in contact with the outer surface of the second rotary drum 140, moved backward by the second transfer blades 141, and then removed from the inner housing 130. 2 falls downward toward the inner surface of the first rotary drum 120 through the opening 131.

The biomass moved to the inner surface of the first rotary drum 120 is mixed and stirred while being repeatedly dropped and raised by the first stirring blades 122, while being dried by the hot air introduced through the third opening, forward. After moving, it is supplied to the inner surface of the outer housing 110 through the plurality of first openings 123 . In addition, as the first transfer blades 121 formed outside the first rotary drum 120 rotate, the raw material moves toward the first discharge pipe 112 at the rear of the outer housing 110, and as a result, the first discharge pipe 112 ) through which dry matter is discharged.

Subsequently, the heat source supply unit 200 will be described. The heat source supply unit 200 is a heat source for drying the above-described biomass, and may be a burner that burns kerosene, but is not limited thereto, and is more specifically around the second rotary drum 140 near the dryer body 100. located in

At this time, the first conduit (L1) connecting the first exhaust pipe 160 of the dryer body 100 and the heat source supply unit 200 so that combustible gases such as hydrocarbons generated in the drying process of biomass can be used as a heat source It is preferable that is additionally provided.

The first purification unit 300 is configured to remove moisture or particles discharged from the dryer body 100, and is a first conduit L1 located behind the first exhaust pipe 160 of the dryer body 100. It may be provided on the top, for example, it may include a first cyclone 310 and a condenser 320.

Meanwhile, as described above, the dry gas that has passed through the first cyclone 310 and the condenser 320 is supplied to the heat source supply unit 300 and can be used as a heat source.

Finally, the second purification unit 400 is configured to remove air pollutants such as sulfur oxides or dust discharged from the dryer body 100, and is located behind the first exhaust pipe 111 of the dryer body 100. It may be provided on the second conduit (L2), for example, may include a second cyclone 410, a filter 420 and a scrubber 430.

Since the aforementioned cyclone, condenser, and scrubber correspond to known technologies, detailed configurations thereof will be omitted.

As above, specific parts of the present invention have been described in detail, and to those skilled in the art, these specific descriptions are only preferred embodiments, and the scope of the present invention is not limited thereby, and the scope of the present invention It is obvious to those skilled in the art that various changes and modifications are possible within the scope and scope of the technical idea, and it goes without saying that these changes and modifications fall within the scope of the appended claims.

100: dryer body
110: outer housing
111: first exhaust pipe 112: first exhaust pipe
113: side wall
120: first rotating drum
121: first transfer blade 122: first stirring blade
123: first opening
130: inner housing
131: second opening 132: third opening
140: second rotary drum
141: second transfer wing 142: fourth opening
150: side plate
151: first side plate 151a: raw material inlet
152: second side plate 153: hollow plate
160: second exhaust pipe
170: first driving unit
171: first motor 172: first chain
173: first drive shaft 174: roller
180: second driving unit
181: second motor 182: second drive shaft
190: first support frame
200: heat source supply unit
300: first purification unit
310: first cyclone
320: condenser
400: second purification unit
410: second cyclone
420: filtration filter
430: scrubber
L1: first conduit L2: second conduit

Claims (8)

a dryer body 100 which removes moisture by heating biomass containing a certain amount of moisture; and
Including a heat source supply unit 200 for supplying hot air to the dryer body unit 100,
The dryer body 100 includes a cylindrical outer housing 110 horizontally positioned with a first exhaust pipe 111 provided on one side and a first discharge pipe 112 provided on the other side; A first rotary drum 120 rotating at a constant speed while being located inside the outer housing 110; an inner housing 130 positioned inside the first rotating drum 120; a second rotary drum 140 positioned inside the inner housing 130 and rotated at a constant speed and having a cylindrical shape so that a heat source can be introduced into the inside; A first side plate 151 located on one side of the first rotary drum 120 and equipped with a first raw material inlet 151a, a second side plate 152 located on the other side of the first rotary drum 120, and side plates 150 made of hollow disk plates 153 fixed to both ends of the first rotating drum 120; a second exhaust pipe 160 positioned in a state penetrating the second side plate 152; a first drive unit 170 and a second drive unit 180 for rotating the first rotation drum 120 and the second rotation drum 140, respectively; And a first support frame 190,
The first rotary drum 120 includes a spiral first transfer blade 121 provided along the longitudinal direction of the outer surface, a plurality of first stirring blades 122 provided along the longitudinal direction of the inner surface, and a one or more first openings (123);
The inner housing 130 has a second opening 131 formed on the bottom surface, while a third opening 132 is provided on the side surface,
The second rotary drum 140 includes a spiral second transfer blade 141 provided along the longitudinal direction of the outer surface and a fourth opening 142 at one end edge,
The first drive unit 170 includes a first motor 171, a first chain 172 connected to the first motor 171, a first drive shaft 173 rotated by the first chain 172, And a plurality of rollers 174 in close contact with the outer surface of the first rotary drum 120 while being fastened to the first driving shaft 173,
The second drive unit 180 includes a second motor 181 and a second drive shaft 182 having one side connected to the second motor 181 and the other side connected to the second rotary drum 140. Biomass drying apparatus, characterized in that.
delete delete According to claim 1,
The heat source supply unit 200 is a biomass drying apparatus, characterized in that for supplying a heat source to the inside of the second rotary drum (140).
According to claim 4,
Biomass drying apparatus, characterized in that the first conduit (L1) connecting the second exhaust pipe (160) and the heat source supply unit (200) is further provided.
According to claim 5,
Biomass drying apparatus, characterized in that the first purification unit 300 including a first cyclone 310 and a condenser 320 is located in the first conduit (L1).
According to claim 5,
A second conduit L2 is connected to the first exhaust pipe 111, and a second cyclone 410, a filter 420, and a scrubber 430 are sequentially disposed in the second conduit L2. Biomass drying apparatus, characterized in that the purification unit 400 is located.
According to claim 1,
Biomass drying apparatus, characterized in that the biomass is livestock manure.

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