KR20130067416A

KR20130067416A - Low-temperature carbonization of organic waste, the device

Info

Publication number: KR20130067416A
Application number: KR1020110134574A
Authority: KR
Inventors: 박명수; 김량환
Original assignee: 한국하이테크 주식회사
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2013-06-24
Also published as: KR101342893B1

Abstract

The present invention relates to a carbonization apparatus for carbonizing organic waste at low temperature, and more particularly, to allow the carbonized product of the dried organic waste to be uniformly carbonized at low temperature as well as to have high carbonization efficiency in a short time. To ensure that
A carbonization apparatus for carbonizing dried products of organic wastes dried with low water content at low temperature, and carbonizing carbonized carbide, the carbonization apparatus comprising: a main body having a chamber in which low temperature hot air is supplied and circulated and exhausted; The chamber includes a carbonization means which is discharged as a carbide falling from the top to the bottom while being carbonized by stirring and low temperature hot air circulated in the chamber; It relates to a low temperature carbonization apparatus of an organic waste comprising a.

Description

Low-temperature carbonization of organic waste, the device

The present invention relates to a carbonization apparatus for carbonizing organic waste at low temperature, and more particularly, to allow the carbonized product of the dried organic waste to be uniformly carbonized at low temperature as well as to have high carbonization efficiency in a short time. To low temperature carbonization of organic wastes.

In general, organic waste refers to wastes containing a lot of carbohydrates and vegetable fiber, and representative wastes such as food waste and sewage sludge, which are emitted in large quantities in our daily lives, are representative.

Due to the large amount of organic wastes generated per day and the large amount of water in nature, severe odors were generated, and as a result, air pollution as well as water pollution caused serious damage to soil pollution. .

Accordingly, various methods of treating organic waste have been proposed and used. In general, the method of treating organic waste is first pulverized and collected to remove foreign matters, and then dried to lower the moisture content. Carbonization is carried out to obtain the desired carbide for the building.

Here, the process of carbonizing the dry matter is divided into a low temperature carbonization method and a high temperature carbonization method to obtain the desired carbide, that is, the low temperature carbonization method, which is the former, carbonizes the dry matter of the organic waste slowly to a low temperature of about 500 to 550 ° C. Carbonization is made of carbides that can be used for recycling purposes, such as waste and composting. The latter high temperature carbonization method carbonizes dry matter of organic waste at a high temperature of about 800 ° C or higher, such as methane gas or hydrogen gas generated during the carbonization process. Carbonization is used to obtain useful recycled gas.

Herein, a carbonization apparatus to which a low temperature carbonization method is applied among the above carbonization methods will be described.

In the case of a carbonization apparatus adopting a conventional low temperature carbonization method, there is a kiln type, a screw type, a vertical cylindrical type, or the like, which is a conventional kiln type.

In the case of the kiln type, a large amount of energy is consumed along with a long carbonization time by applying a heat source while rotating the housing. In the case of the screw type, the dried material of the organic waste is stirred by a screw rotating inside the housing. The design of the screw to stir the dry material in a manner that is quite difficult and has a problem in that it takes a long carbonization time, and in the case of the vertical cylindrical type in the form of a screw type upright, this also quite complicated structure Of course, there was a problem that the efficiency is not very high with many difficulties in design.

Above all, in the conventional low temperature carbonization apparatuses of various forms, the organic wastes are not only uniformly carbonized but also have a problem in that energy consumption due to long carbonization time is consumed.

The present invention has been made to solve the above-mentioned conventional problems, its main object is to make the carbonized dry matter of the dried organic waste flowing uniformly at low temperature as well as have a high carbonization efficiency in a short time It is to provide a low temperature carbonization device for organic waste.

Another object of the present invention is to be able to have an increasingly higher carbonization efficiency from the upper side to the lower side.

Another object of the present invention is to make the stirring of the carbide more efficient.

Another object of the present invention is to maintain a constant temperature in the process of carbonization at low temperature (higher carbonization efficiency is higher).

Still another object of the present invention is to facilitate the treatment of pyrolysis gas generated in the carbonization process.

The present invention for solving the technical problem as described above, in the carbonization apparatus for carbonizing the dry matter of the organic waste dried at a low water content to a low temperature, the carbonization apparatus is supplied after circulating the low-temperature hot air A main body in which a chamber to be exhausted is formed; The chamber includes a carbonization means which is discharged as a carbide falling from the top to the bottom while being carbonized by stirring and low temperature hot air circulated in the chamber; .

The carbonization means is formed of an exhaust pipe through which the pyrolysis gas generated in the carbonization process is exhausted through the upper and lower sides of the main body, and at least one or more layers connected to the exhaust pipe outside the exhaust pipe to accommodate a dry matter or a plurality of carbides. A housing and a rotating shaft connected to a power source on the exhaust pipe are rotated, and the rotating shaft includes a respective stirring member mounted to stir while drying or carbides flowing into each carbonized housing.

Each carbonized housing is formed with an inflow path through which dry matter or carbide is introduced on an upper surface thereof, and an outlet path through which carbides carbonized are formed on a lower surface thereof.

The inflow passages and the discharge passages formed in the carbonization housings are located on different lines, and the discharge passage of the carbonization housing on the upper side and the inflow passage of the carbonization housing on the lower side are formed on the same line.

Wherein the stirring member is formed in each of the stirring stand in a position opposite to each other, the upper and lower uneven portion is formed on the stirring stand, characterized in that the uneven projection and the uneven groove formed in each of the stirring stand is formed to be offset from each other .

The body is further connected to the inside of the chamber is characterized in that the temperature sensor for sensing the temperature in the chamber further provided.

The exhaust pipe through which the pyrolysis gas is exhausted is re-supplied into a chamber through which a low temperature hot air is supplied through a connection line.

The present invention, by allowing the carbonized product of the dried organic waste to be uniformly carbonized at a low temperature as well as having a high carbonization efficiency within a short time, by sequential stirring and carbonization from the top to the bottom As it has high carbonization efficiency with uniform carbonization, it can maximize productivity and minimize fuel consumption due to carbonization in a short time.

In addition, by allowing the higher carbonization efficiency from the upper side to the lower side, it is possible to reduce the time as well as to have a higher carbonization efficiency.

In addition, by allowing the stirring of the carbide due to the uneven portion formed in the stirring table of the stirring member can be made more efficiently, carbonization with more uniform agitation also has an effect that can be made more efficiently.

In addition, by maintaining a constant temperature in the process of carbonization at low temperature, it has the effect of further increasing the carbonization efficiency of the low temperature, and further shorten the carbonization time.

In addition, the pyrolysis gas generated in the carbonization process can also be made smoothly, as well as the exhaust gas with a minimum of harmful components, as well as the effect of maintaining the temperature in the carbonization process can be made more efficiently.

1 is a front sectional view showing main parts schematically showing the present invention.
FIG. 2 is an essential plan cross-sectional view schematically showing the carbonization housing according to FIG. 1; FIG.
3 is a schematic view schematically showing the use state of the present invention.

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

1 is a front sectional view showing main parts of the present invention schematically, and FIG. 2 is a sectional view showing main parts of the carbonized housing according to FIG.

As shown in the figure, the organic wastes are collected and repeated crushing, foreign matter classification and drying by a known method, and carbonized dry matter of the organic wastes having low moisture content at about 500 to 550 ° C. at a low temperature, and thus, conventional charcoal or compost. In the carbonization apparatus 1 for carbonizing carbides which can be used for the same recycling purpose,

The present invention, in order to be able to uniformly carbonize the dry matter of the dried organic waste introduced at a low temperature as well as to have a high carbonization efficiency in a short time,

The carbonization apparatus 1 may include a chamber exhausted through an exhaust port 14 formed on an upper surface of the carbonization apparatus 1 after being supplied and circulated with low temperature hot air by a known hot wind supply means through a hot air supply port 12 formed below. 15) is formed, the outer surface and the main body 10 is covered with a conventional thermal insulation material 16 to minimize the discharge of heat in the chamber to the outside;

The chamber 15 has a carbonization means 20 which is discharged as a carbide from the top to the bottom while being carbonized by a low temperature hot air circulated in the chamber with agitation so that the incoming dry matter is carbonized uniformly; .

The carbonization means 20 includes an exhaust pipe 22 through which the pyrolysis gas generated in the carbonization process is exhausted through the body 10 and at least one connected to the exhaust pipe outside the exhaust pipe 22. A plurality of carbonized housings 24 formed in layers to accommodate dry matter or carbides, power sources 25 such as motors on the exhaust pipes 22, and conventional power transmission means 26 such as sprockets and chains or pulleys or belts; It is provided with a rotating shaft 27 is rotated in connection with the rotating shaft 27, each stirring member mounted to agitate to be uniformly carbonized while rotating the drying or carbide flowing into each carbonized housing 24 ( Preferably 28).

Each carbonization housing 24 is preferably formed with an inflow path 24a through which dry matter or carbides are introduced on an upper surface thereof, and an outlet passage 24b through which carbonized carbides are dropped from a lower surface thereof, that is, the inflow path is formed of a dry matter. It is preferably formed to correspond to the width of the radius of the carbonized housing so as to evenly flow into the carbonized housing when the inflow, and the discharge path is also formed in a shape corresponding to the radius of the carbonized housing such as the inflow path so as to smoothly discharge after stirring. Do. In other words, it is formed long from the rotary shaft to the outer surface of the carbonized housing.

The inflow passage 24a and the discharge passage 24b formed in each of the carbonization housings 24 are located on different lines, and the discharge passage 24b of the carbonization housing 24 on the upper side and the carbonization housing on the lower side ( The inflow path 24a of 24 is formed on the same line, and the inflow and outflow are smoothly performed.

In other words, the dry matter or carbide introduced through the inflow path formed in the carbonization housing is carbonized by hot air together with agitation through the exhaust path having a gap of about 360 ° while being stirred by the stirring member, The fall can be made smoothly.

The stirring member 28 is formed at each of the opposing position, that is, each stirring stand 29 in the form of a cross (+), the upper end of the stirring stand 29 is an uneven portion 29A for smooth stirring It is preferable that the uneven protrusions 29a and the uneven grooves 29b of the uneven portions 29A formed on the stirring tables 29 are shifted from each other. In this case, the stirring table may be formed to have a predetermined interval not only in the cross shape but also in the cross shape.

Accordingly, as the stirring member rotates, the stirring table stirs the dried material or the carbide, and the uneven protrusions and the uneven grooves formed on the upper side of the stirring table are alternately formed with the uneven protrusions and the uneven grooves formed in the next stirring table. Stirring is more evenly and smoothly can be achieved.

The main body 10 has a temperature sensor 30 connected to the inside of the chamber 15 by a connecting tube 32 or the like in a conventional manner and sensing the temperature in the chamber 15 at the end of the connecting tube. When the temperature in the chamber is lowered below the set temperature through the hot air supply means by sensing the temperature at any time while detecting the temperature inside the chamber, the temperature of the hot air is increased so that the supply can be made. In this case, by lowering the temperature of the hot air so that the supply can be made can have the best conditions to uniformly carbonize at a constant temperature by the low temperature carbonization method.

As shown in FIG. 3, the carbonization device 1 of the present invention configured as described above is first carbonized to a carbonization housing 24 of the carbonization means 20 located at an upper portion formed in the chamber 15 formed in the main body 10. At the same time, the dry material to be introduced is introduced through the inflow path 24a, and the stirring stand 29, which is the stirring member 28 mounted on the rotating shaft 27, is rotated by the power source 25 to stir the dried material. At this time, the inside of the chamber 15 is supplied with a hot air of about 500 ~ 550 ℃ so that the low temperature carbonization through the hot air supply port 12, the dry matter in the carbonization housing 24 with the stirring Carbonization will be slowed down.

In this way, while the carbonization is carried out together with the agitation in the carbonization housing 24 located at the upper side, the discharge path 24b formed of the carbide by the stirring table 29 of the stirring member 28 is formed on the bottom surface of the carbonization housing 24. Due to the stirring table 29 of the stirring member 28 being rotated by the rotary shaft 27 in the carbonized housing 24 while falling through the inflow path 24a of the other carbonized housing 24 located in the lower part of the living quarters. After the carbonization is performed with stirring again, it is discharged again to the carbonization housing 24 at the lower side, and then the stirring and carbonization are repeated again. In the case of the carbonization housing 24 at the bottom of the drawing, when the stirring and carbonization is completed Is discharged to the outside through the discharge passage (24b).

In addition, the stirring table 29 of the stirring member 28 rotates evenly and smoothly dry or carbide due to the uneven protrusions 29a and the uneven grooves 29b which are the uneven parts 29A formed on the top. Stirring can be achieved.

As described above, the present invention does not perform stirring and carbonization in one carbonization housing, but allows stirring and carbonization to be continuously and thirdly stirred and carbonized at the top, so that even a large amount of dry matter is sequentially As the stirring and carbonization are continuously performed, the carbonization efficiency may be increased as much as possible. Also, a large amount of the dry matter may be processed smoothly as the stirring and carbonization are continuously performed sequentially. Due to the conditions in which the stirring and carbonization sequentially from the bottom to have a condition that can shorten the overall carbonization time.

In addition, the temperature in the chamber 15 is connected to the chamber so that the stirring and carbonization in the carbonization housing 24 is smoothly performed by the stirring member 28. (15) By having a constant temperature at which carbonization can be smoothly performed at all times, the carbonization efficiency is further increased.

In addition, the pyrolysis gas generated when carbonization occurs with agitation in each of the carbonization housings 24 is exhausted through the exhaust pipes 22. At this time, although not shown in the exhaust pipes, filtering means is provided through a common pipe line or the like. It is preferable to exhaust the harmful substances and the like filtered through a washing tower or the like.

In addition, the hot air circulated for carbonization in the chamber 15 is exhausted to the outside through the exhaust port 14 after heat exchange is performed by the carbonized housing 24 formed in a multilayer, and the hot air exhausted through the exhaust port is also latent heat. In relation to having it, it is to be supplied to a place where necessary through a separate piping line, or to be directly connected to the washing tower and exhaust.

Thus, in the present invention, the carbonization is not performed in one housing in the process of manufacturing low temperature carbide, but the carbonization can be sequentially performed with stirring from the top to the bottom, thereby maximizing the carbonization efficiency as well as the overall carbonization time. It also has a condition that can be minimized.

On the other hand, in order to increase and recycle the decomposition efficiency of the pyrolysis gas generated when the carbonization with agitation in the carbonized housing,

The exhaust pipe 22 through which the pyrolysis gas is exhausted is preferably supplied back into the chamber 15 through which a low temperature hot air is supplied through a conventional connection line.

In other words, it is preferable that the connection line is connected to a hot air supply port for supplying low temperature hot air to the chamber, and the pyrolysis gas exhausted through the exhaust pipe is re-supplied into the chamber so that it is contained in the pyrolysis gas. In addition to the removal of some of the harmful components, the heat of the pyrolysis gas also results in additional conditions that allow for better temperature maintenance in the chamber.

Therefore, the high efficiency of recycling the pyrolysis gas generated in the carbonization process, as well as some harmful components contained therein has the advantage that can be removed.

1: carbonization device
10: main body 12: hot air supply port
14 exhaust port 15 chamber
16: insulation material 20: carbonization means
22 exhaust pipe 24 carbonized housing
24a: inlet 24b: outlet
25: power source 26: power transmission means
27: rotating shaft 28: stirring member
29: stirring stand 29A: uneven portion
29a: uneven protrusions 29b: uneven groove
30: temperature sensor 32: connector

Claims

In the carbonization apparatus (1) for carbonizing dried products of organic wastes dried with low water content at low temperature and carbonized with carbides,
The carbonization device 1,
A main body 10 having a chamber 15 for exhausting after being supplied with circulating low temperature hot air;
The chamber (15) includes carbonization means (20) in which the incoming dry matter is carbonized by stirring and low temperature hot air circulated in the chamber and discharged as a carbide from the top to the bottom; Low temperature carbonization apparatus of an organic waste comprising a.

The method of claim 1,
The carbonization means 20 is connected to the exhaust pipe 22 through which the pyrolysis gas generated in the carbonization process is exhausted through the upper and lower portions of the main body 20 and the exhaust pipe 22 to the outside of the exhaust pipe 22. And a plurality of carbonization housings 24 formed of at least one layer to accommodate dry matter or carbides, and a rotation shaft 27 connected to the power source 25 on the exhaust pipe 22 to rotate. ) Is a low temperature carbonization apparatus for organic waste, characterized in that it comprises a respective stirring member (28) mounted to agitate while rotating the drying or carbide flowing into each carbonization housing (24).

The method of claim 2,
Low temperature carbonization apparatus of the organic waste, characterized in that each of the carbonization housing 24 is formed with an inlet path (24a) in which the dry matter or carbide inflow is formed on the upper surface and the discharge path (24b) in which the carbonized carbide falls on the bottom surface.

The method of claim 3,
The inflow passage 24a and the discharge passage 24b formed in each of the carbonization housings 24 are located on different lines, and the discharge passage 24b of the carbonization housing 24 on the upper side and the carbonization housing on the lower side ( Low temperature carbonization apparatus of the organic waste, characterized in that the inlet passage (24a) of 24) is formed in the same line.

5. The method according to any one of claims 2 to 4,
The stirring member 28, the respective stirring stand 29 is formed in a position facing each other, the upper and lower portions of the stirring stand 29 is formed with a concave-convex portion 29A, each of the stirring stand 29 Low temperature carbonization apparatus of the organic waste, characterized in that the uneven protrusion (29a) and the uneven groove (29b) of the formed uneven portion (29A) are formed to be offset from each other.

The method of claim 5,
Low temperature carbonization apparatus of the organic waste, characterized in that the main body 10 is further provided with a temperature sensor 30 connected to the inside of the chamber 15 for sensing the temperature in the chamber.

The method of claim 5,
Low temperature carbonization apparatus of the organic waste, characterized in that the exhaust pipe 22 is exhausted to the exhaust pipe 22 is supplied back to the chamber 15 is supplied with low-temperature hot air through a connection line.