KR102648223B1 - Organic material drying and thermal decomposition mixer - Google Patents

Abstract

The present invention initially uses a burner when drying and stirring organic materials, but pyrolysis is achieved by burning the pyrolysis gas (organic gas) generated during the drying and pyrolysis process, thereby improving fuel efficiency by minimizing fuel consumption. The purpose is to provide a stirrer for drying and pyrolysis of organic materials. In addition, the present invention supplies the organic gas generated during stirring to a deodorizer with moisture removed from the condenser, thereby burning the odorous substances contained in the organic gas together, thereby reducing the generation of odor and further increasing the thermal decomposition effect. There is another purpose in providing a drying and pyrolysis stirrer.

Description

Organic material drying and pyrolysis stirrer {ORGANIC MATERIAL DRYING AND THERMAL DECOMPOSITION MIXER}

The present invention relates to an agitator for drying and pyrolysis of organic materials. More specifically, in the early stages of pyrolysis, fuel is supplied from outside, but as pyrolysis and drying occur, the pyrolysis gas generated in the process of drying organic materials is used for combustion in the deodorization furnace. This not only improves fuel efficiency by minimizing the fuel consumption required for thermal decomposition and drying, but also supplies organic gas from which moisture is removed as it passes through the condenser generated during the stirring process to the deodorizing furnace to remove odorous substances contained in the organic gas. By burning them together, the generation of odor can be minimized.

In general, livestock manure, sewage or wastewater sludge, or food waste have a high moisture content and are difficult to process as is, so they are dried to retain a certain amount of moisture. As a dry stirrer used to produce organic matter into fertilizer or feed with an appropriate moisture content, equipment such as (Patent Document 1) to (Patent Document 3) below is used.

(Patent Document 1) Korean Patent No. 10-2393195

Organic matter with high moisture content, such as livestock manure, sewage/wastewater sludge, and leftover food, is introduced into the drum-shaped cylindrical shell-shaped tank, and the rotation of the vertically connected stirring shaft and stirring blade is driven by the operation of the lower drive unit. While stirring the organic matter, external air (oxygen) is supplied to the fermenter tank through the stirring blade, and the temperature inside the fermenter tank is controlled to establish and operate an optimal environment for aerobic microbial fermentation, thereby drying and fermenting the organic matter in the shortest possible time. In making organic matter, a stirring shaft is installed in the center of the cylindrical shell-shaped tank, one end of the stirring blade is supported on the stirring shaft, the stirring blade includes a lower stirring blade disposed at the lowermost end, and It consists of a middle stirring blade disposed above the lower stirring blade and an upper stirring blade disposed above the middle stirring blade, and the structures are arranged differently depending on the installation location and processing function of each stirring blade. An organic high-speed drying fermenter with enhanced durability and performance is provided.

(Patent Document 2) Korean Patent No. 10-1930882

After starting the drying operation by the user, the end condition is set according to the temperature difference between the first element that provides the evaporation atmosphere and the second element that reflects the evaporation state, and the organic matter is dried to the desired moisture content according to the moisture content value entered by the user. This relates to an organic matter drying device that improves operating efficiency by automatically ending the drying operation at the point meeting the termination conditions by modifying the termination conditions for the end condition, including a set value input unit where the user can input the value of moisture content, and the evaporation atmosphere in the drying room. A temperature difference detection unit that detects the temperature difference between the first element that provides and the second element that reflects the evaporation state, an end condition setting unit that determines the end condition according to the temperature difference in the stabilization time period, and an end condition that modifies the end condition according to the input moisture content. It is comprised of a compensator and a driver that automatically terminates the drying operation according to termination conditions.

(Patent Document 3) Korean Patent Publication No. 10-2023-0030068

It relates to an organic matter drying device for reducing the weight of organic matter, and more specifically, to a drum having an inlet for the substance to be treated, a drive shaft installed in the hollow of the drum and rotatable, and installed on the drive shaft, the end of which is the drum. It includes a scraper that is elastically pressed and contacts the inner wall surface of the. In the process of reducing the amount of organic matter, cakes that have aggregated or clumped on the wall of the drying device can be removed, thereby improving the efficiency and workability of crushing, fermentation, and drying of organic matter.

Korean Patent No. 10-2393195 (Registration Date: 2022.04.27) Korean Patent No. 10-1930882 (Registration Date: 2018.12.13) Korean Patent Publication No. 10-2023-0030068 (Publication date: 2023.03.06)

However, these existing devices for drying organic materials have the following problems.

(1) When drying and stirring organic matter, the moisture contained in the organic matter must be removed using a burner, etc., so that solid substances such as fertilizer can be obtained from this organic matter. As such, existing drying devices consume a lot of energy to remove moisture.

(2) In particular, organic materials that contain a lot of moisture, such as agricultural products, not only cause deterioration and quality deterioration due to rot or proliferation of microorganisms during storage and transportation, but also require a long time to stir and dry due to the high moisture content, and require a lot of energy. It requires energy, which reduces fuel efficiency.

(3) On the other hand, when organic materials are stirred and dried, organic gas is generated in the process, and this organic gas may contain harmful components. These harmful gases must be removed, but separate removal equipment or technology is required to remove the harmful gases.

The present invention takes this into consideration, and initially uses a burner when drying and stirring organic materials, but pyrolysis is achieved by burning the pyrolysis gas (organic gas) generated during the drying and deodorization process, thereby minimizing fuel consumption. The purpose is to provide an organic matter drying and pyrolysis stirrer that can improve fuel efficiency.

In addition, the present invention supplies the organic gas generated during stirring to a deodorizer with moisture removed from the condenser, thereby burning the odorous substances contained in the organic gas together, thereby reducing the generation of odor and further increasing the thermal decomposition effect. There is another purpose in providing a drying and pyrolysis stirrer.

The organic material drying and pyrolysis stirrer according to the present invention for achieving this purpose includes a main body 100 including a space 110 whose interior is finished with a refractory material and a condenser 120 installed externally; A screw feeder 200 installed on the main body 100 to be located long in the longitudinal direction of the main body 100 at the top of the space 110 to receive organic matter from the outside and provide it to the upper part of the space 110; It is installed in the main body 100 so as to be located in parallel with the screw feeder 200 under the screw feeder 200, and transports and agitates the organic matter that freely falls from the screw feeder 200 in the longitudinal direction while changing the transport direction. At least two stirrers (300', 300") that change and stir; surround each of the stirrers (300', 300") and send the organic gas generated inside to the condenser 120 to remove condensate, and the stirrer ( A stirring casing (400) that causes the stirred organic matter to freely fall downward while moving along 300', 300"; It is installed in the main body (100) to be located below the stirring casing (400), and the stirring casing (400) ) A deodorizer (500) consisting of a drying area (510) for receiving and drying free-falling organic matter and a combustion area (520) communicating with the drying area (510); and at least two units in the drying area (510). A drying screw 600 installed in parallel to transfer the naturally falling organic matter in the longitudinal direction, change the direction, dry it, and then discharge it out of the main body 100; including; the deodorizer 500 In this case, ignition is initially performed using a burner with fuel supplied from outside, but after initial ignition, pyrolysis gas generated in the deodorizer 500 and organic gas from which moisture has been removed from the condenser 120 are supplied. It is characterized by drying and deodorizing organic matter while reducing external fuel by causing thermal decomposition.

The organic matter drying and pyrolysis stirrer according to the present invention has the following effects.

(1) In order to obtain the heat necessary for pyrolysis to dry and deodorize organic substances, fuel is initially supplied from outside using a burner, etc.; however, the organic gas generated during stirring and the pyrolysis gas generated during pyrolysis (organic gas) By burning together, the amount of external fuel used can be reduced while the deodorization effect can be increased.

(2) At this time, the organic gas with a high moisture content generated during stirring is supplied to the deodorizer with the moisture removed through a condenser so that it can be used for thermal decomposition, thereby further enhancing the deodorizing effect by burning odorous substances. .

(3) By arranging multiple screws and stirrers in a flat shape so that stirring and drying takes a long time, the area occupied by the organic drying and pyrolysis stirrer can be minimized while increasing drying and stirring efficiency.

(4) In addition, by continuously agitating, drying, and deodorizing organic waste through multiple screws and stirrers, organic matter can be continuously pyrolyzed and solidified.

(5) The structure of the screw and stirrer is simple, so not only does it not break down easily, but even if it breaks down, it can be easily repaired or replaced, making it easy to maintain.

[Figure 1] is a front cross-sectional view showing an organic material drying and pyrolysis stirrer according to the present invention.
[Figure 2] is a side cross-sectional view showing an organic material drying and pyrolysis stirrer according to the present invention.
[Figure 3] is a plan cross-sectional view showing the configuration of the deodorizer according to the present invention.
[Figure 4] is a side cross-sectional view showing the configuration of the deodorizer according to the present invention.
[Figure 5] is a front cross-sectional view showing the flow of stirring, drying, and pyrolysis in the organic matter drying and pyrolysis stirrer according to the present invention.
[Figure 6] is a side cross-sectional view showing the flow of stirring, drying, and pyrolysis in the organic matter drying and pyrolysis stirrer according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. Prior to this, the terms or words used in this specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to explain his or her invention in the best way. It must be interpreted with meaning and concept consistent with the technical idea of the present invention according to the principle that it can be done.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, so various equivalents can be substituted for them at the time of filing the present application. It should be understood that there may be variations.

[ stirring Configuration of drying device]

The organic material drying and pyrolysis stirrer according to the present invention includes a main body 100, a screw feeder 200, at least two stirrers (300', 300"), and a stirring casing (400), as shown in [FIGS. 1] to [FIG. 6]. ), deodorizer 500, drying screw 600, and rotary valve 700.

In particular, the fuel used for thermal decomposition in the deodorizer 500 is initially supplied from the outside, but when thermal decomposition begins to occur and the internal temperature of the deodorizer 500 reaches 350 to 850°C, the fuel is used by the stirring and drying screw ( The organic gas generated at 300', 300" and from which moisture has been removed in the condenser 120 of the main body 100 and the pyrolysis gas generated during drying in the drying screw 600 are burned together to cause pyrolysis. By configuring it to minimize the use of external fuel, not only can fuel efficiency be improved by reducing fuel use, but also the deodorizing effect can be further improved by burning odorous substances contained in organic gas.

Hereinafter, this configuration will be described in more detail with reference to the attached drawings.

go. main body

As shown in [FIG. 1] to [FIG. 4], the main body 100 continuously receives organic matter therein and allows stirring and drying to obtain solid matter. As this main body 100 uses high-temperature heat internally, it is desirable to finish the interior with a refractory material to prevent heat transfer to the outside of the main body 100 and increase drying efficiency. In addition, a plurality of partitions are arranged so that the gas discharged to the outside after deodorization and drying, which will be described later, can remain in the main body 100 for a long time and be cooled to a certain temperature before being discharged. It is desirable.

This main body 100 includes a space 110 and a condenser 120, as shown in [FIG. 2] to [FIG. 4].

1. Space

The space 110, as shown in [FIG. 1] and [FIG. 2], is a space in a sealed form that traps heat inside and allows stirring, drying, and deodorization of organic substances. It is wrapped with a refractory material and is described below. It can sufficiently accommodate other configurations to be used, and is manufactured by sealing it to prevent gases generated from organic substances from leaking out of the main body 100.

2. Condenser

The condenser 120 is mounted outside the main body 100 described above, as shown in [FIG. 1] and [FIG. 2]. At this time, the condenser 120 receives the organic gas generated during the stirring process inside the stirrer 300', 300", which will be described later, removes moisture contained in the organic gas, and burns it together when drying and deodorizing the organic material. This allows the deodorizing effect to be further enhanced by burning the odorous substances contained in the organic gas.

That is, the condenser 120, as shown in [FIG. 5] and [FIG. 6], receives the organic gas generated in the process of stirring organic substances inside the stirrer (300', 300"), which will be described later, and produces this organic gas. The moisture contained in the gas is removed and discharged to the outside of the condenser 120 in the form of condensate, and the dried organic gas is supplied to the combustion area 520 of the deodorizer 500, which will be described later, so that the organic gas contained in the organic gas is discharged to the outside of the condenser 120 in the form of condensate. The deodorizing effect can be further enhanced by burning odorous substances with the heat generated when they are thermally decomposed.

me. screw feeder

The screw feeder 200 is installed in the above-described space 110, as shown in [FIG. 1] and [FIG. 2], and is arranged side by side along the longitudinal direction of the main body 100 at the upper part of this space 110. Install. This allows organic matter to be supplied into the space 110 through the screw feeder 200, and then the organic matter falling down in free fall from the screw feeder 200 to be naturally supplied to the stirrers 300' and 300", which will be described later. This is for the purpose. This screw feeder 200 is a screw type used when transporting and supplying raw materials, etc., and can be manufactured using conventional technology.

Meanwhile, in a preferred embodiment of the present invention, the screw feeder 200 is installed so that the organic matter freely falls on a stirrer 300', which will be described later, as shown in [FIG. 5] and [FIG. 6], thereby removing the organic matter. It is desirable to change direction along at least two stirrers (300', 300") so that the stirring effect can be improved by uniformly stirring for a long time.

At this time, the screw feeder 200 is installed on the main body 100 to allow organic matter to freely fall from one end of the space 110, as shown in [FIG. 5] and [FIG. 6], as will be described later. It is desirable to allow the organic matter to freely fall at either end of the stirrer 300' so that the stirring length is as long as possible.

all. agitator

The stirrer (300', 300"), as shown in [FIG. 1] and [FIG. 2], is located below the screw feeder 200 described above and agitates the organic matter that naturally falls downward from the screw feeder 200 to form organic matter. Stir evenly.

At this time, at least two of the stirrers (300', 300") are formed side by side, as shown in [FIG. 5] and [FIG. 6], and the transport directions of the two adjacent ones are opposite to each other and communicate with each other at the ends. By configuring it so that the organic matter that freely falls in one stirrer (300') moves along the longitudinal direction of this stirrer (300') and is stirred, then moves to another neighboring stirrer (300") and then reverses again. As it moves in the direction, the stirring length is extended by the number of the stirrers (300', 300") to ensure sufficient stirring. The stirrer used at this time can be one manufactured by conventional technology.

la. stirring casing

As shown in [FIG. 1] and [FIG. 2], the stirring casing 400 surrounds the above-described stirrers 300' and 300", respectively, and transports the organic matter by stirring it along the longitudinal direction of any one stirrer 300'. From the end of this stirrer (300'), it moves to another neighboring stirrer (300") and guides the stirring action repeatedly while being transferred in the longitudinal direction of the other stirrer (300").

In particular, the stirring casing 400, as shown in [FIGS. 5] and [FIG. 6], discharges the organic gas generated when stirring organic substances in the stirrer (300', 300") to the condenser 120 described above. By configuring it so that moisture is condensed in the condenser 120 and the dried organic gas is supplied to the deodorizer 500, which will be described later, odorous substances are burned in the deodorizer 500 to achieve a deodorizing effect.

In addition, as shown in [FIG. 5], the stirring casing 400 forms a discharge hole so that the organic material can freely fall downward at the end of the stirrer 300", where the organic material is finally transferred and stirred, so that the stirrer ( Organic substances continuously stirred through 300', 300") can be continuously dried and deodorized through thermal decomposition in the drying screw 600, which will be described later.

mind. deodorizer

The deodorizer 500 is installed in the space 110 to be located below the stirring casing 400 described above, as shown in [FIG. 1] to [FIG. 4]. At this time, the deodorizer 500 dries, deodorizes, and solidifies the organic matter supplied through thermal decomposition, so that not only can a deodorizing effect be obtained for the organic matter, but it is also designed to manufacture the organic matter into solid products such as fertilizer or feed.

This deodorizer 500, as shown in [FIG. 3] and [FIG. 4], is manufactured in a sealed form to prevent heat from being transmitted to the outside or odor from spreading during pyrolysis, thereby enabling safe pyrolysis. let it be Of course, it is desirable to partially open the deodorizer 500 where organic matter falls.

At this time, the deodorizer 500, as shown in [FIG. 3] and [FIG. 4], has a drying area 510 in which thermal decomposition to substantially dry and deodorize organic matter occurs, and a combustion section to supply heat necessary for thermal decomposition. It is divided into areas 520, and these two areas are configured to communicate with each other. At this time, a drying screw 600, which will be described later, is installed in the drying area 510 to dry the organic matter that freely falls downward from the agitating casing 400 described above.

And in the combustion area 520, as shown in [FIG. 3] and [FIG. 4], fuel can be supplied from the outside using one burner 521, and organic matter can be dried and deodorized in the deodorizer 500. Allow thermal decomposition to occur. At this time, the burner 521 initially receives fuel from the outside to supply heat necessary for pyrolysis, but is supplied from the condenser 120 into the deodorizer 500 to produce organic gas for removing odorous substances, which will be described later. When the pyrolysis gas generated from the drying screw 600, etc. is supplied to this combustion area 520, it reaches a temperature (e.g., 350 to 850°C) at which these gases can be burned together to obtain the heat necessary for pyrolysis. The burner 521 is no longer operated or is controlled to burn with minimal fuel to minimize external fuel and pyrolyze into organic gas, thereby improving fuel efficiency and reducing odor generation.

bar. dry screw

At least two drying screws 600 are installed side by side in the above-described drying area 510, as shown in [FIG. 1] and [FIG. 2]. At this time, at least two drying screws 600 are arranged side by side like the above-mentioned stirrers 300' and 300", and as they move along one screw, the dried organic matter is moved toward the other neighboring screw and is again on the other screw. It provides drying and deodorizing effects while moving along the length direction.

While passing through the drying screw 600 in this way, in the combustion area 520, a burner is initially used to supply heat necessary for pyrolysis to dry and deodorize organic matter, but is supplied through the condenser 120 described above. By supplying the organic gas for removing odorous substances and the pyrolysis gas generated within the deodorizing furnace 500 to the combustion area 520 and burning them together, not only can the amount of fuel supplied from the outside be reduced accordingly, but also reducing the amount of odor. The amount generated can be significantly reduced.

In this way, the remaining gas after combustion, drying and deodorization in the main body 100 is exhausted to the outside of the main body 100 through the exhaust port 130 formed at the top of the main body 100, as shown in [FIG. 5].

buy. rotary valve

The rotary valve 700 is mounted on a supply path that allows organic matter to freely fall from the stirring casing 400 to the deodorizer 500, as shown in [FIG. 2] and [FIG. 6]. At this time, the rotary valve 700 controls the amount of organic matter falling into the deodorizer 500, thereby cutting off the supply of organic matter according to the processing capacity of the deodorizer 500, thereby increasing fuel consumption efficiency and increasing the thermal decomposition effect. There will be.

As described above, the present invention initially receives fuel from an external source to obtain the heat source necessary to pyrolyze organic substances using a burner, and then burns the organic gas to remove odorous substances generated during the stirring process and the pyrolysis gas generated from the deodorizer. By configuring the system to obtain the heat source necessary for pyrolysis, not only can fuel consumption be reduced by the amount of heat obtained from such gas usage, but the odor removal effect can also be increased.

100: body
110: space
120: condenser
200: Screw feeder
300', 300": Agitator
400: stirring casing
500: Deodorizer
510: drying area
520: Combustion area
600: dry screw

Claims (1)

A main body 100 including a space 110 whose interior is finished with a fireproof material and a condenser 120 installed externally; A screw feeder 200 installed on the main body 100 to be located long in the longitudinal direction of the main body 100 at the top of the space 110 to receive organic matter from the outside and provide it to the upper part of the space 110; It is installed in the main body 100 so as to be located in parallel with the screw feeder 200 under the screw feeder 200, and transports and agitates the organic matter that freely falls from the screw feeder 200 in the longitudinal direction while changing the transport direction. At least two stirrers (300', 300") that change and stir; surround each of the stirrers (300', 300") and send the organic gas generated inside to the condenser 120 to remove condensate, and the stirrer ( A stirring casing (400) that causes the stirred organic matter to freely fall downward while moving along 300', 300"; It is installed in the main body (100) to be located below the stirring casing (400), and the stirring casing (400) ) A deodorizer (500) consisting of a drying area (510) that receives and dries free-falling organic matter from the drying area (510) and a combustion area (520) that communicates with the drying area (510); at least two of them are located side by side in the drying area (510). A drying screw 600 that is installed to transport the naturally falling organic matter in the longitudinal direction, change the direction, dry it, and then discharge it out of the main body 100; and the deodorizer in the stirring casing 400 The supply path for supplying organic matter to (500) includes a rotary valve (700) for controlling the amount of organic matter that freely falls;
In the deodorizer 500, ignition is initially performed using a burner with fuel supplied from the outside, and after initial ignition, the pyrolysis gas generated in the deodorizer 500 and moisture are removed from the condenser 120. An organic matter drying and pyrolysis stirrer that receives organic gas and causes pyrolysis to dry and deodorize organic matter while reducing external fuel.

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