KR101275456B1 - Solid fuel using rice hull charcoal and manufacturing method therefor - Google Patents

Abstract

The present invention relates to a solidified fuel using chaff charcoal and a method for manufacturing the same, more specifically, the solidified fuel formed in pellet form consisting of 70 to 80% by weight of chaff charcoal powder and 20 to 30% by weight of tar, and the solidifying fuel As a method of producing a chaff charcoal process (S100) for pyrolyzing chaff, and the chaff charcoal grinding process (S200) for crushing the pyrolyzed chaff charcoal, and the condensed synthesis gas discharged during the pyrolysis of rice husk condensed from the chaff Condensation of the supernatant (S210) and the tar extraction step (S220) to extract the precipitate by extracting the tar from the chaff herb solution, and the chaff charcoal powder 70-80% by weight and tar 20-30% by weight of chaff charcoal It includes a tar mixing process (S300) to increase the calorie of the powder and to aggregate the rice husk charcoal powder, and a pellet molding process (S400) to form the pellet by injecting the chaff char-tar mixture into the molding machine 40 doing By constructing a solidified fuel manufacturing method, not only can the calorie charcoal powder be increased by the tar component, but the coal charcoal powder can be agglomerated, and on the other hand, it is possible to utilize the tar component that has been disposed of in the past, which is more environmentally friendly. It can be referred to as 'solidified fuel using chaff charcoal and its manufacturing method'.

Description

Solidified fuel using chaff charcoal and its manufacturing method {SOLID FUEL USING RICE HULL CHARCOAL AND MANUFACTURING METHOD THEREFOR}

The present invention relates to a solidified fuel using chaff charcoal and a method of manufacturing the same, and more particularly, by shaping and mixing and shaping charcoal charcoal carbonized chaff generated as a by-product in a rice grain processing plant and solidified pellet (pellet) form Prepared as a fuel, in particular, by condensing and extracting the tar component from the syngas generated during the carbonization of chaff and mixed with the crushed chaff charcoal powder, not only to increase the calorie content of chaff charcoal powder by the tar component, chaff charcoal powder It is possible to agglomerate, and on the other hand, because it effectively utilizes the tar component that has been conventionally discarded, it relates to a 'solidified fuel using chaff charcoal and its manufacturing method' which is more environmentally friendly.

Generally, various waste materials such as synthetic resin, paper, wood, and fiber are used as the solidifying fuel, and the solidifying fuel is capable of supplying and distributing stable materials, inexpensive, and easy to manufacture. Materials with sufficient calories are suitable for use as solidifying fuels.

On the other hand, chaff is a by-product produced in large quantities in the rice milling process, which generates about 1 million tonnes annually in Korea, and its quantity is sufficient. It is suitable for use as a solidified fuel because it is produced near a consumer area and its distribution is convenient.

However, although chaff is an excellent material having various advantages as described above, the utilization of chaff is very low as a fuel compared to solid fuels such as briquettes and firewood, which are alternative fuels, and in most cases, it is used as agricultural compost material or for livestock industry. It is used, and some carbonization is used as fuel.

The low utilization rate of chaff as an alternative fuel is composed of 35% carbon, 5% hydrogen, 39% oxygen, and 20% ash, and its combustion temperature is relatively higher than that of solid fuels such as wood and sawdust. It was because the plate-like structure contained was insufficient in the amount of heat generated.

In addition, since the chaff is made in the form of small particles, in order to produce a solidified fuel, a flocculant must be mixed, because the cost of the solidified fuel is increased as a result of using a separate flocculant.

The present invention is to solve the problems as described above, by pulverizing and shaping the charcoal charcoal charcoal chaff produced by the solidified fuel of the pellet (pellet) form, by mixing the tar with the chaff charcoal calorie of insufficient chaff charcoal It is an object of the present invention to provide a solidification fuel in which the chaff charcoal powder is agglomerated by the tar. In addition, by constructing a method of manufacturing a solidified fuel extracting and mixing the tar mixed with the chaff charcoal powder from the carbonization of the chaff charcoal, not only external resources are required, but also the tar components discarded during the manufacture of the chaff charcoal There is another purpose to use it efficiently.

The configuration of the present invention for achieving the above object, consisting of 70 to 80% by weight chaff charcoal powder and 20 to 30% by weight tar is characterized in that the 'solidified fuel using chaff charcoal' molded in the form of pellets.

And the present invention, the chaff charcoal process for thermally decomposing chaff into a carbonized furnace into which limited air is introduced, and the chaff charcoal crushing process for adding chaff charcoal discharged from the carbonization furnace into a grinder to form chaff charcoal powder; In addition, by mixing the 70 to 80% by weight of chaff charcoal powder and 20 to 30% by weight of tar in a stirrer to increase the calorie of chaff charcoal powder and to aggregate the chaff charcoal powder and the chaff charcoal-tar There is another feature of the method for preparing solidified fuel using chaff charcoal, including a pellet molding process in which the mixture is introduced into a molding machine to form pellets.

The present invention also provides a condensation process of condensing rice hull liquor from the synthesis gas by introducing the syngas discharged from the carbonization furnace into a condenser, and introducing the tar component contained in the rice husk herb solution by introducing the condensed chaff liquor into the precipitation tank. 'Preparation method of solidifying fuel using chaff charcoal', which further comprises a tar extraction step of precipitating and supplying the tar component to a stirrer for use in a tar mixing process, and discharged from a carbonization furnace in the chaff charcoal grinding process. There is another feature of the method of preparing solidified fuel using chaff charcoal, which is prepared by adding 50 to 95% by weight of chaff charcoal and 5 to 50% by weight of fresh chaff as a grinder.

According to the present invention having the above-described configuration, in the manufacture of a pelletized solid fuel by crushing and shaping chaff charcoal, condensation and extraction of the tar component from the syngas generated during the carbonization process of chaff, By mixing with the chaff charcoal powder, not only has the effect of increasing the calorie content of the chaff charcoal powder by the tar component, but also can reduce the manufacturing cost because it is possible to aggregate the chaff charcoal powder without using a separate flocculant. have. In addition, since the tar component used in the prior art is efficiently utilized, there is also an effect of producing an environmentally friendly solidified fuel.

1 is a flow chart showing a method for producing a solidified fuel using chaff charcoal according to an embodiment of the present invention
Figure 2 is a flow chart showing a method for producing a solidified fuel using chaff charcoal according to another embodiment of the present invention
Figure 3 is a process chart showing a method for producing a solidified fuel using chaff charcoal according to the present invention

Looking at the configuration of the solidified fuel using chaff charcoal according to a preferred embodiment of the present invention, the solidified fuel is molded in the form of pellets by mixing 70 to 80% by weight of chaff charcoal powder and 20 to 30% by weight of tar, or 50 to 95% by weight of chaff charcoal powder and 5 to 50% by weight of raw chaff powder are mixed in a form of pellets by mixing 20-30% by weight of tar with respect to 70-80% by weight of chaff charcoal-raw chaff mixed powder. At this time, the pellet is preferably formed with a diameter of 6 ~ 8mm and a length of 6 ~ 30mm, the present invention is not limited to the size of the pellet.

Hereinafter, the method for preparing a solidified fuel using chaff charcoal according to a preferred embodiment of the present invention will be described in detail by the process. The present invention shows a rice husk carbonization process (S100) and chaff charcoal grinding process (as shown in FIG. 1). S200), tar mixing process (S300), pellet molding process (S400) and pellet drying process (S500) as the main configuration, as shown in Figure 2 the liquid-liquid condensation process (S210) and tar extraction process (S220) It further includes as an additional configuration.

≪ Process of rice husk carbonization &

Rice husk carbonization process (S100) is a step of thermally decomposing the chaff into the carbonization furnace 10 into which limited air is introduced, and pyrolysis at a high temperature, as shown in FIG. 3, from the upper side of the carbonization furnace 10 to the inside of the carbonization furnace 10. The chaff introduced into the rice is thermally decomposed to 300 ~ 700 ℃ by the burner provided in the carbonization furnace 10 in a state in which limited air is introduced through the inlet port under the carbonization furnace 10, and the charcoal charred by the pyrolysis. Silver is discharged to the lower portion of the carbonization furnace 10, the synthesis gas generated in the pyrolysis process is exhausted through the upper side of the carbonization furnace 10, the present invention is not limited to the detailed configuration of the carbonization furnace 10 as described above .

Chaff charcoal grinding process

Chaff charcoal grinding step (S200) is a step of forming the chaff charcoal powder by injecting chaff charcoal discharged from the carbonization furnace 10 into the grinder 20, the present invention is limited to the type or type of the grinder 20 I never do that. On the other hand, in the grinder 20 may be added only chaff charcoal to form a pure chaff charcoal powder, additionally 50 to 95% by weight chaff charcoal discharged from the carbonization furnace 10 and 5 to 50% by weight chaff The chaff charcoal powder containing the raw chaff powder may be formed by adding the to the grinder 20. In this case, the cost of carbonizing raw rice hulls can be reduced, thus ultimately producing a solidified fuel at a lower cost.

<Solid Condensation Process>

The liquid liquor condensation process (S210) is an additional process of condensing rice hull liquor from the syngas by introducing the syngas discharged from the carbonization furnace 10 into the condenser 21. In the condenser 21, a plurality of condensation tubes are formed in the condenser 21 as the refrigerant (cooling water, etc.) is circulated, condensation may be induced in the high temperature synthesis gas introduced into the condenser 21 to obtain chaff herb solution. . On the other hand, the syngas discharged from the condenser 21 after extracting the rice husk herb is supplied to a heat exchanger (not shown) to heat recovery, or after highly purified synthesis gas used as a fuel for the generator (not shown) Energy can be achieved by doing this.

<Tar Extraction Process>

The tar extraction process (S220) is an additional process of injecting the condensed rice hull liquor into the settling tank 22 to precipitate the tar component contained in the rice hull liquor, and the tar component deposited on the lower portion of the settling tank 22 is It is supplied to the stirrer 30 to be described later is used in the tar mixing process (S300). Meanwhile, the chaff herb solution from which the tar component is precipitated and extracted is aged in the precipitation tank 22, and then used as a raw material for agricultural or various cleaning products such as pesticides or insecticides.

<Tar mixing process>

Tar mixing process (S300) is a step of mixing 70 ~ 80% by weight of chaff charcoal powder and 20 to 30% by weight of tar in the stirrer (30), wherein the tar is chaff charcoal powder is not only high calorie, The tar may be aggregated chaff charcoal powder without the need for a separate flocculant. On the other hand, when the chaff charcoal crushing process (S200) is mixed with chaff charcoal 5 to 50% by weight relative to the chaff charcoal 50 to 95% by weight of the chaff charcoal powder containing the raw chaff powder 70 to 80% by weight of tar 20-30% by weight is mixed. In addition, when the liquid-liquid condensation step (S210) and the tar extraction step (S220) are not performed as the additional step, the tar may be supplied from the outside.

<Pellet molding process>

Pellet molding step (S400) is a step of forming a pellet by injecting the chaff char-tar mixture stirred in the tar mixing step (S300) to the molding machine (40). At this time, the pellets are preferably formed with a diameter of 6 ~ 8mm and a length of 6 ~ 30mm.

Pellet drying process

Pellet drying step (S500) is a step of drying the pellets formed in a predetermined shape and standard in the pellet molding step (S400) can be selected natural drying or hot air drying bar, the present invention is limited to the drying method of the pellet I never do that.

Hereinafter, looking at the action of the 'solidified fuel using chaff charcoal and the method for producing the chaff charcoal according to the present invention as described above, by pulverizing and shaping the chaff charcoal pyrolyzed in the carbonization furnace 10 to solidify the pellet (pellet) form In the composition of fuel, by mixing the tar with the crushed chaff charcoal powder can not only increase the calorie content of chaff charcoal powder to 4,100 ~ 4,800㎉ / ㎏, it is possible to aggregate the chaff charcoal powder without the need of a separate flocculant Do.

In particular, by condensing and extracting the tar component from the syngas generated during the carbonization of rice husk and mixing with the chaff charcoal powder, it is possible to reduce the production cost of the solidified fuel, and on the other hand, As it is used efficiently, it is more environmentally friendly.

10: carbonization furnace 20: grinder
21: condenser 22: settling tank
30: stirrer 40: molding machine
S100: chaff carbonization process S200: chaff charcoal grinding process
S210: supercondensation process S220: tar extraction process
S300: Tar mixing process S400: Pellet forming process
S500: Pellet Drying Process

Claims (4)

delete delete Rice husk carbonization process (S100) for thermally decomposing at high temperature by injecting rice husk into the carbonization furnace 10 is a limited air flow;
Chaff charcoal crushing process (S200) of forming the chaff charcoal powder by injecting the chaff charcoal discharged from the carbonization furnace 10 into the grinder 20;
A condensation solution (S210) for condensing rice hull liquor from the synthesis gas by introducing the synthesis gas discharged from the carbonization furnace 10 into the condenser 21;
The condensed rice husk liquor is introduced into the precipitation tank 22 to precipitate the tar component contained in the rice husk liquor, and the tar extraction process of supplying the tar component to the stirrer 30 to be used in the tar mixing process (S300). (S220);
70 to 80% by weight of chaff charcoal powder and 20 to 30% by weight of tar in the stirrer (30) to increase the calorie of chaff charcoal powder, and also to mix the chaff charcoal powder (S300);
The method of producing a solidified fuel using chaff charcoal, characterized in that it comprises a pellet forming step (S400) to form a pellet by injecting the chaff char-tar mixture stirred in the tar mixing process (S300) to the molding machine (40).
4. The method of claim 3, further comprising:
The chaff charcoal grinding step (S200), 50 to 95% by weight of chaff charcoal discharged from the carbonization furnace 10 and 5 to 50% by weight of fresh chaff into the grinder 20 to form chaff charcoal powder Method for producing a solidified fuel using chaff charcoal.

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