KR20130098602A - Carbonization of organic waste dry method and a device - Google Patents

Abstract

PURPOSE: A dry carbonizing device of organic wastes is provided to obtain energy reducing effects by utilizing heated steam passing through a carbonizing unit for a first dry unit as a reheating unit and recycling energy with the recycling of a heat source. CONSTITUTION: A dry carbonizing device of organic wastes comprises a combustion unit (10), a second dry unit (20) of a kiln method, a first dry unit (30), an overheated steam generation unit, and a carbonizing unit. The overheated steam generation unit compulsory draws steam coming through the first dry unit through a heat recovery line (c) with a fan (40) into a jacket of the combustion unit. The overheated steam generation unit generates overheated steam with indirect heat caused by heating a combustion furnace and supplies the generated overheated steam. While a dried object supplied by passing through the second dry unit is transferred, the dried object is made into carbide by the carbonizing unit with an indirect contact of the overheated steam supplied through an overheated steam supplying line (d). The carbonizing unit discharges the carbide to the outside. [Reference numerals] (AA) Fuel storage tank

Description

Carbonization of organic waste dry method and a device

The present invention relates to a dry carbonization method of organic wastes and a device thereof, and more particularly, the heat source is superheated in a circulating process while the organic wastes introduced are multistage drying and carbonization drying process by a heat source provided in a combustion furnace. The present invention relates to a dry carbonization method and apparatus for organic waste for generating steam to perform an efficient drying and carbonization process.

In general, various system treatment methods for drying and carbonizing various organic wastes, such as animal waste, sewage, wastewater waste, and food waste, have been proposed and applied. Most of organic wastes are transported in a long pipeline that rotates. It consists of a drying method by the heat source which is hot air supplied by a burner etc.

However, the treatment method described above is organic waste introduced into the drying furnace by the continuous hot air supply by the burner as the organic waste introduced into the drying furnace is gradually moved from the pipeline, and the water content of the organic waste is about 70 to 80%, which is 10 to 20%. In order to reduce significantly, the drying process requires a considerable drying time and the energy consumption is large, resulting in inefficient and uneconomical problems. There were problems such as severe air pollution.

In the drying process, the steam generated when the organic waste is dried is re-introduced into the combustion furnace and heated to send the superheated steam generated by the carbonization pipe to carbonize the dried organic waste by the superheated steam. Drying and carbonization are used.

However, the superheated steam from carbonization process contains a considerable temperature and it is not recycled and released into the atmosphere, which is a waste of energy. This superheated steam contains foreign substances such as dust, tar and water vapor, In case of severe air pollution, the drying process and the carbonization process could not be done in a circulating process, so there was a problem that the efficiency was considerably reduced.

The present invention has been proposed to solve the above-mentioned conventional problems,

Superheated steam generated by drying organic wastes subjected to primary and secondary drying equipment by heat source, a hot air provided by combustion furnace, in order to reduce water content step by step and repeatedly heating steam from drying process by jacket of combustion device Is carbonized to the carbonization apparatus into which the dried organic waste is input, and the dried organic waste is carbonized, and some dry gas in the carbonization process is included in the gas discharged from the carbonization process while being used as an auxiliary fuel of the combustion apparatus through a heat exchange means. Dry carbonization method of organic wastes to efficiently carry out drying process and carbonization process by condensing the collected water and circulating the dry gas through the jacket and cyclone of primary drying device In providing a device.

The present invention will be described below with reference to a solution for implementing the above object.

Combustion means for generating a superheated steam by supplying a heat source provided from the burner to form a jacket around the re-heated incoming steam;

A second drying means of a kiln method provided with a heat source supplied from the combustion means to firstly dry the organic waste having a water content of 50 to 60% and to reduce the water content to 10 to 20%;

A primary drying means of a jacket structure provided with a heat source from the secondary drying means to dry organic waste having a water content of about 80% and reducing the water content to 50 to 60%;

The organic waste dried by the secondary drying means is provided by the superheated steam generated by sending steam from the primary drying means to the jacket of the combustion means by heating by a fan and is made of carbide by the superheated steam. Carbonization means for discharging to the outside;

Steam, tar and dust contained in the dry gas from the exhaust means and carbonization means to be discharged to the atmosphere through the cyclone to send the hot dry gas from the carbonization means to the jacket of the primary drying means to provide an additional heat source It is an organic waste drying carbonization apparatus comprising heat exchange means for removing the back and recycle to the auxiliary fuel of the combustion means.

On the other hand, the combustion step of generating a superheated steam by reheating the incoming steam by forming a jacket around the hot air supplied from the burner as a heat source;

The hot air provided through the combustion process is provided after passing through the secondary drying means, and the organic matter having a moisture content of about 80% is added thereto, and dried by hot air provided indirectly while being stirred by a transfer screw installed therein. Primary drying process to reduce to 50-60%;

It is supplied with the heat source supplied from the combustion process and is supplied with organic waste having a moisture content of 50 to 60% by the first drying process. Secondary drying process to reduce to;

The steam from the primary drying process is forcibly sent by the fan to the jacket of the combustion means, and the superheated steam generated by burning the odor by burning the odor is supplied to the jacket formed around the carbonization means to perform the secondary drying process. A carbonization process in which the finished organic waste is carbide made by indirect heating of superheated steam and discharged to the outside;

In the carbonization process, the superheated steam passing through the jacket is sent to the jacket of the primary drying means to heat the drying tank by the superheated steam, which is heated together with the hot air supplied to the inside of the drying tank, thereby directly or indirectly heating the drying tank. It is to improve the heating efficiency and to recycle the used superheated steam, the superheated steam coming out of the first drying process to remove the dust and the like through a cyclone to be discharged to the atmosphere;

When the gas generated in the carbonization process is carbonized, the gas is sent to a heat exchange means to remove water vapor, tar, and dust contained in the gas. When supplied, the organic waste drying and carbonization method includes a gas recycling process that burns as an auxiliary fuel and reduces the supply of fuel to the burner or utilizes it as a heat source to increase hot air.

The present invention carbonizes indirect heat of superheated steam generated by heating the organic waste that the hot air provided in the combustion furnace is subjected to the first and second drying apparatus to reduce the water content step by step and heating the steam passed through the drying apparatus by the combustion apparatus. The process of carbonizing the organic wastes supplied to the Sudan is carried out by the organic circulation system so that the drying process and the carbonization process can be efficiently carried out, thereby greatly improving the efficiency and economic efficiency.

In addition, by using the gas from the carbonization process as a secondary fuel of the combustion device through the heat exchange means and by using the superheated steam passed through the carbonization means as a reheating means in the primary drying means, energy saving effect by energy recycling by recycling the heat source. Can be obtained.

1 is a block diagram showing an overall configuration system of the present invention
Figure 2 is a schematic diagram showing the configuration of the primary drying means in the present invention
Figure 3 is a schematic view showing the configuration of the secondary drying means in the present invention
Figure 4 is a schematic view showing the carbonization means in the present invention

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

1 is a configuration diagram showing the overall configuration system of the present invention, Figure 2 is a schematic view showing the configuration of the primary drying means in the present invention, Figure 3 is a schematic view showing the configuration of the secondary drying means in the present invention, Figure 4 shows a schematic view showing the carbonization means in the present invention.

As illustrated in FIGS. 1 and 2, the hot air, which is a heat source provided from the burner 11, is supplied to the internal combustion furnace 12, and a jacket 13 having a spiral guide is formed around the outer surface of the steam to enter the combustion furnace. Combustion means 10 which generate | occur | produce superheated steam by indirect heating by the heating of (12) is provided.

Kiln method for drying the hot air supplied from the combustion means 10 through the primary heat source supply line (a) and drying the water to be dried to 50 to 60% of the moisture content to 10 to 20% Secondary drying means 20 is provided.

That is, the secondary drying means 20 is formed by stirring the blade 22 in the spiral direction in the drying barrel 21 while being rotated by the driving means as shown in FIG. It has a configuration that is dried by hot air in the process.

The water source provided through the secondary drying means 20 is supplied through the secondary heat source supply line (b), and the moisture content provided from the storage tank 80 is about 80% to dry the to-be-dried material to a water content of 50 to 60%. It constitutes a primary drying means 30 in the manner of a reducing jacket structure.

The primary drying means 30 is to be dried by the hot air supplied through the secondary drying means 20 in the process of transporting the object to be dried by the transfer screw 32 installed inside the drying tank 31 while stirring. The jacket 33 having a spiral guide is formed around the outer surface, and the superheated steam is introduced to heat the drying barrel 31 to be directly or indirectly heated.

Steam flowing through the primary drying means 30 is forced to the jacket 13 of the combustion means 10 by the fan 40 through the heat source recovery line (c) to the heating of the combustion furnace 12. Indirect heating to provide superheated steam.

 The superheated steam is provided with a carbonization means (50) which is supplied through the superheated steam supply line (d) and made to be carbonized by the superheated steam to be discharged to the outside.

That is, the carbonization means 50 is a spiral direction around the outer surface of the carbonization furnace 51 while the to-be-dried product which has passed through the secondary drying means 20 is transferred through the feed screw 52 built in the carbonization furnace 51. A jacket 53 is formed to have a guide, and the superheated steam heated by the combustion means 10 is supplied to the jacket 53 to carbonize the dry matter in the carbonization furnace 51 by an indirect heat source.

The dry gas generated in the carbonization process is sent to the heat exchange means 60 through the cyclone 70 'to remove the water vapor, tar, dust, etc. included in the gas and burn the dry gas generated through the gas recovery line (e). It is configured to provide as a secondary fuel to the means (10).

That is, the dry gas may be supplied to the heat combusted by the burner 11 at one side of the burner 11 to be provided as a heat source, to reduce fuel supplied to the burner, and to partially replace the dry gas.

And the superheated steam passed through the jacket 53 of the carbonization means 50 is discharged while providing an additional heat source for heating the drying tank by sending to the jacket 33 of the primary drying means 30 through the connecting line (g). It is configured to include a configuration to be sent to the cyclone 70 through the steam exhaust line (f) to be discharged to the atmosphere while removing dust and the like.

The to-be-dried material is configured to be organically formed by the transfer conveyor 80 to transfer and supply the primary drying means 30, the secondary drying means 30, and the carbonization means 50, respectively.

Referring to the present invention composed of such a configuration by the process as follows.

Combustion Process :

The steam flowing into the jacket 13 formed around the outer surface is reheated while supplying hot air, which is a heat source provided from the burner 11, to generate and supply superheated steam.

1st drying process

Transfer screw 32 installed inside the organic waste of about 80% of water moisture content is injected into the primary drying means 20 provided after the hot air provided through the combustion process passes through the secondary drying means 30. The primary drying process is carried out by drying by the heat provided directly or indirectly by the heat conduction heated through the jacket 33 and the hot air supplied therein while reducing the water content to 50 to 60% by stirring.

2nd drying process

Dry matter to be dried by stirring blades formed in the drying container by receiving a dry matter having a moisture content of 50 to 60% provided by the primary drying process to the secondary drying means 20 provided with the heat source supplied from the combustion process. While stirring and transporting, drying is performed by direct contact with hot air, thereby performing a secondary drying process to reduce the water content to 10 to 20%.

Carbonization process

After the primary drying process, the steam is sent to the jacket 13 of the combustion means 10, which is a combustion process, by means of a fan, and when the steam is heated by the combustion furnace 11, the odor contained in the steam is high. By burning the superheated steam and supplied to the jacket 53 formed around the carbonization means 50, the superheated steam having a moisture content of 10-20% after the secondary drying process 53), water is removed by indirect heating, and carbonization is made by carbonization and discharged to the outside.

Superheated steam recycling process

In the carbonization process, the superheated steam passing through the jacket 53 is sent to the jacket 33 of the primary drying means 30 to heat the drying barrel 31 by the superheated steam, and is supplied into the drying barrel 31. The heating is performed together with the hot air to directly or indirectly heated in the drying container to improve the heating efficiency and to recycle the used superheated steam. The superheated steam that is passed through the primary drying process collects dust and the like through a cyclone (70). The process takes place to be removed and discharged to the atmosphere.

Gas recycling process

Gas generated in the process of carbonization of the dry matter in the carbonization process is sent to the heat exchange means 60 through the cyclone (70 ') to remove water vapor, tar, dust, etc. contained in the gas is made of dry gas When it is supplied to the combustion position of the burner 11 of the combustion means 10 is burned as an auxiliary fuel is used as a heat source to reduce the supply of fuel supplied to the burner or to increase the hot air.

As described above, in the process of drying and carbonizing the dried material step by step, hot air and superheated steam are supplied to and discharged from each process by an organic circulation system so that the drying and carbonization can be efficiently performed. Energy efficiency can be reduced by energy recycling while greatly improving efficiency and economics.

The embodiments of the present invention described in the present specification and the configurations shown in the drawings relate to the most preferred embodiments of the present invention and are not intended to encompass all of the technical ideas of the present invention so that various equivalents And variations are possible. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. , And such changes are within the scope of the claims.

10: combustion means
20: secondary drying means
30: primary drying means
50: carbonization means
60: heat exchange means
70: cyclone

Claims (4)

A dry carbonization apparatus of organic wastes for drying and carbonizing a dry matter which is an organic waste in stages,
The hot air, which is a heat source provided from the burner 11, is supplied to the internal combustion furnace 12, and a jacket 13 having a spiral guide is formed around the outer surface to indirectly introduce steam introduced by the heating of the combustion furnace 12. Combustion means (10) for generating superheated steam by phosphorus heating;
Kiln method for drying the hot air supplied from the combustion means 10 through the primary heat source supply line (a) and drying the water to be dried to 50 to 60% of the moisture content to 10 to 20% Secondary drying means 20;
The method of the jacket structure that receives the heat source coming out through the secondary drying means 20 through the secondary heat source supply line (b) to dry the dried material having a water content of about 80% to reduce the water content to 50 to 60% Primary drying means (30);
Steam flowing through the primary drying means 30 is forced to the jacket 13 of the combustion means 10 by the fan 40 through the heat source recovery line (c) to the heating of the combustion furnace 12. Means for generating and providing superheated steam by indirect heating;
The carbonized means 50 which is made of carbide by indirect contact by the superheated steam supplied through the superheated steam supply line d while being transported through the secondary drying means 20 is discharged to the outside. Dry carbonization apparatus for organic waste, characterized in that comprising a. According to claim 1, Gas generated in the carbonization process of the carbonization means 50 is sent to the heat exchange means 60 through the cyclone (70 ') to remove the water vapor, tar, dust and the like contained in the gas produced after drying Drying carbonization device for organic waste, characterized in that configured to provide the gas to the combustion means (10) as auxiliary fuel through the gas recovery line (e). The superheated steam passed through the jacket 53 of the carbonization means 50 is sent to the jacket 33 of the primary drying means 30 to be discharged while providing an additional heat source for heating the drying barrel. Dry carbonization apparatus of organic waste, characterized in that. An organic waste dry carbonization method of drying and carbonizing a dry matter to be organic waste in stages,
A combustion step of reheating the steam flowing into the jacket 13 formed around the outer surface while supplying hot air provided from the burner 11 to generate superheated steam and supply it;
Transfer screw 32 installed inside the organic waste of about 80% of water moisture content is injected into the primary drying means 20 provided after the hot air provided through the combustion process passes through the secondary drying means 30. Primary drying step of drying by hot air provided directly or indirectly while stirring to reduce the water content to 50 to 60%;
The to-be-dried material is stirred by the stirring blade formed in the drying container by receiving the to-be-dried material of 50 to 60% of moisture content by the 1st drying process to the 2nd drying means 20 which receives the heat source supplied from the said combustion process. Secondary drying process to dry by direct contact of hot air while being transported, reducing the water content to 10 to 20%;
After the primary drying process, the steam is forced out by the fan to the jacket 13 of the combustion means 10. When the steam is heated by the combustion furnace 11, the odors contained in the steam are burned by high heat. Organic matters including a carbonization process in which the superheated steam generated while being supplied to the jacket 53 formed around the carbonization means 50 and completed the secondary drying process is carbonized by indirect heating and discharged to the outside. Dry carbonization of waste.

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