WO2013099405A1

WO2013099405A1 - Palm kernel shell charcoal manufacturing method and system

Info

Publication number: WO2013099405A1
Application number: PCT/JP2012/076317
Authority: WO
Inventors: 中山　道夫; 昭北村; 福井　雅康
Original assignee: スチールプランテック株式会社
Priority date: 2011-12-28
Filing date: 2012-10-11
Publication date: 2013-07-04
Also published as: JP2013136651A

Abstract

In order to obtain a method and a device for manufacturing palm kernel shell charcoal that uses palm kernel shell as a starting material at reduced starting material cost, this palm kernel shell charcoal manufacturing method uses a boiler (3) in which palm kernel shell can be used as fuel and high-temperature gas can be introduced from outside and used, and a palm kernel shell charcoal manufacturing device (31) for manufacturing palm kernel shell charcoal by carbonizing the palm kernel shell by a spontaneous combustion-type direct heating kiln (33), the palm kernel shell charcoal manufacturing method being characterized in that secondary combustion air is supplied to exhaust gas including an unburned combustible content and discharged from the spontaneous combustion-type direct heating kiln (33) to burn the exhaust gas to thereby produce high-temperature gas, and the high-temperature gas is conveyed and introduced into the boiler.

Description

Coconut charcoal manufacturing method and system

TECHNICAL FIELD The present invention relates to a method and system for producing coconut husk charcoal by carbonizing oil palm coconut shell (PKS: PalmhellKernel Shell), and in particular, coconut husk for efficiently producing coconut husk charcoal by reducing the production cost of coconut husk charcoal. The present invention relates to a method and system for producing charcoal.

Palm Kernel Shell (PKS), waste from the palm oil industry, has properties similar to low-grade coal, and is used as a biomass fuel instead of coal.
Moreover, the coconut husk charcoal obtained by carbonizing this coconut husk is valuable as a substitute for the raw material of coconut husk activated carbon and the metallurgical coke.
Table 1 shows examples of industrial analysis of coconut shells and coconut shell charcoal.

As the method for producing coconut husk charcoal as described above, for example, as disclosed in Patent Document 1, coconut husk is dry-distilled by a self-combustion direct heating rotary kiln.

WO2011 / 142001

Coconut husk, the raw material for coconut husk charcoal, was regarded as worthless until about five to six years ago, and the boiler was positioned as an incinerator for coconut husk as waste.
However, due to the recent widespread use of biomass energy, it is now traded at a price of about 45 US $ / ton as a higher price fuel than low-grade coal. The calorific value of coconut husk is higher than that of low-grade coal even on a wet basis, and has less sulfur and ash than coal, making it a valuable fuel for simple combustion.
On the other hand, coconut husk charcoal is used as a raw material for coconut husk activated carbon and as a substitute for coke for metallurgical use, and its price is about 350 US $ / ton.

As shown in Table 1, the percentage of volatile matter in coconut shells is high, and 4 to 5 tons of coconut shells are required to produce 1 ton of coconut shell charcoal, so the yield is about 20 to 25%. is there. Especially, the yield of coconut husk charcoal for metallurgy with a low volatile content is about 20%. Therefore, tonnage of coconut husk charcoal requires 5 tons of coconut husk, and the raw material cost reaches 45 × 5 = 225 US $ / ton. . In other words, 225 US $ coconut husk is required to produce 350 US $ coconut husk charcoal, and the share of raw material costs in the coconut husk charcoal price reaches 64%.
Therefore, in the production of coconut husk charcoal, reducing raw material costs directly leads to improved profitability.

However, as disclosed in Patent Document 1, various methods have been proposed for a method for producing coconut husk charcoal. However, a method, an apparatus, and a system for reducing coconut husk charcoal production cost by reducing raw material costs. Currently, no proposal has been made.

Therefore, the present invention proposes a method and a system for producing coconut husk charcoal using coconut husk which has been rising rapidly as a raw material at a reduced raw material cost.

In order to solve the above-mentioned problems, the inventor has focused on a coconut oil factory that generates a large amount of coconut shells.
Many coconut oil factories are equipped with biomass boilers that use coconut shells and fibers (oil squeezed residue) as fuel, and steam obtained from these biomass boilers is used as process steam for coconut oil production or as a turbine drive for power generation We use for.

FIG. 4 shows an explanatory diagram of the utilization status of the biomass boiler in the coconut oil factory. FIG. 4 shows each process data in addition to the configuration of the equipment and the like.
As shown in FIG. 4, the equipment in the coconut oil factory includes a biomass boiler 21, a turbine 23, a generator 25, and a coconut oil production plant 27.
In the equipment shown in FIG. 4, the biomass boiler 21 is cooked using fiber 6 ton / h (normal temperature) and PKS (coconut shell) 4 ton / h (normal temperature) as fuel, and 20 tons of steam is generated at 25 ton / h. The generator 25 is driven to obtain 8,000 KW of power, which is used as power for the palm oil production plant 27. Further, steam (0.4 MPa, 25 ton / h) after turning the turbine 23 is also used in the palm oil production plant 27.
The exhaust gas (300 ° C.) of the biomass boiler 21 is sent to a dust collector and discharged to the atmosphere after dust collection.
In addition, the scale of the palm oil factory of FIG. 4 is a standard size of 50 ton / h of fruit fruit (FFB: Fresh Fruit Bunches) processing amount and 12 ton / h of palm oil production.

In the coconut oil factory, coconut husk is a waste, and this waste is effectively used as a fuel.
However, looking at coconut husk as a raw material for coconut husk charcoal, it is not possible to say that it is an effective use because the raw material that has been rising recently is simply used as fuel.

The inventor also paid attention to the manufacturing process of coconut shell charcoal. FIG. 5 is a diagram showing an outline of the coconut shell charcoal manufacturing apparatus.
Based on FIG. 5, a coconut husk charcoal manufacturing apparatus and method are outlined.
The coconut husk charcoal manufacturing apparatus 31 includes a rotary kiln 33, a raw material charging port 35 for charging the rotary kiln 33 with coconut husk as a raw material, a pit 38 for storing coconut husk charcoal discharged from an outlet 37 of the rotary kiln 33, and a pit 38. A high-temperature conveyor 39 for transporting the accumulated coconut charcoal and a secondary combustion tower 41 for secondary combustion of exhaust gas discharged from the rotary kiln 33 are provided.

The coconut husk charcoal manufacturing method by the coconut husk charcoal manufacturing apparatus 31 comprised as mentioned above is demonstrated below.
The raw material coconut husk is supplied to the rotary kiln 33 from the raw material charging port 35 and conveyed toward the outlet side. During the conveyance process, the volatile matter in the coconut shells is mainly burned by the combustion air. In the rotary kiln 33, combustible volatile components are generated and burned, and the combustion heat is transmitted to the coconut shells in the kiln by radiant heat transfer, so that dry distillation of the coconut shells proceeds.
The residence time in the kiln is about 1 hour. Due to the high calorific value of the volatile matter, the heat required for dry distillation does not need to be applied from outside except when the kiln is activated.
Coconut charcoal, which is a product after dry distillation, is discharged from a discharge port 37 to a pit 38 and further conveyed to a predetermined place by a high-temperature conveyor 39.
Since the exhaust gas discharged from the raw material input side in the rotary kiln 33 still contains unburned components, the secondary combustion air is supplied in the secondary combustion tower 41 and burned, and is diffused into the atmosphere after combustion.

It is as follows when the process data in the above coconut shell charcoal manufacture is shown.
PKS (palm palm) 2ton / h (normal temperature) is introduced into the rotary kiln 33, primary combustion air is introduced at 3,200m3N / h (normal temperature), and dry distillation in the kiln, combustion gas (CO: 9.7%, H2: 10.5) %) (5,050m3n / h, 860 ℃). The generated combustion gas is exhausted into the secondary combustion tower 41, and secondary combustion is performed by supplying secondary combustion air (6,850m3n / h, normal temperature) to produce high temperature exhaust gas (11,000
m3n / h, 1000 ℃).

In the coconut husk charcoal manufacturing process, combustion gas is generated by dry distillation of coconut husks, but this is not being used effectively.

As described above, in the coconut oil manufacturing process, it is necessary to cook a boiler, but coconut husk is used as fuel, but coconut husk is not necessarily an effective use when viewed as an expensive coconut husk charcoal raw material. In the process, a large amount of combustion gas is exhausted wastefully.
The inventor pays attention to the present situation of such a palm oil factory and a palm palm charcoal manufacturing factory, and obtains the idea that by eliminating waste in both, it is possible to realize a reduction in the manufacturing cost of palm palm charcoal, and further The present invention has been completed through intensive studies, and specifically comprises the following configuration.

(1) The method for producing coconut husk charcoal according to the present invention produces coconut husk charcoal by dry-distilling coconut husk with a boiler that can use coconut husk as fuel and introduce high-temperature gas from the outside, and a self-burning direct heating kiln. A method for producing coconut husk charcoal using a coconut husk charcoal manufacturing apparatus, wherein secondary combustion air is supplied to an exhaust gas containing unburned gas discharged from the self-combustion direct heating kiln and burned to form a high-temperature gas, The hot gas is conveyed to the boiler and introduced.

(2) Further, in the above described (1), in order to convey the high-temperature gas to the boiler, secondary combustion air for secondary combustion of the exhaust gas is used as a jet that exhibits an ejector effect. It is a feature.

(3) The coconut husk charcoal manufacturing system which concerns on this invention manufactures coconut husk charcoal by dry-distilling coconut husk with the boiler which can use coconut husk as a fuel and introduces high temperature gas from the outside, and a self-combustion direct heating kiln. A secondary combustion air for secondary combustion of exhaust gas containing unburned components discharged from the self-combustion direct heating kiln is supplied to the coconut husk charcoal production apparatus and burned to form a high temperature gas. A high-temperature gas transfer / introduction device that is transferred to a boiler for introduction is provided.

(4) Further, in the above-described (3), the high-temperature gas conveyance / introduction device has an inlet for secondary combustion air in a flow path for guiding the high-temperature gas to the boiler, Secondary combustion air is introduced so as to exert an ejector effect, and the high temperature gas is sucked and introduced into the boiler by the ejector effect of the secondary combustion air.

(5) Moreover, the coconut husk charcoal manufacturing system which concerns on this invention can use coconut husk by the boiler which can use coconut husk as a fuel and can introduce | transduce the exhaust gas containing an unburned part from the outside, and can use it as a fuel, and a self-combustion direct heating type kiln. A coconut husk charcoal manufacturing apparatus for producing coconut husk charcoal by dry distillation, an exhaust gas introduction duct constituting an introduction path for introducing exhaust gas containing unburned gas discharged from the self-combustion direct heating kiln into the boiler, A secondary combustion burner for secondary combustion of the exhaust gas introduced into the boiler, and the secondary combustion burner includes a secondary combustion air introduction section for introducing secondary combustion air so as to exert an ejector effect. The exhaust gas in the exhaust gas duct is drawn into the secondary combustion burner by the ejector effect of the secondary combustion air. That.

In the present invention, a boiler that can use coconut husk as fuel and introduce and use high-temperature gas from the outside, and a coconut husk charcoal manufacturing apparatus that produces coconut husk charcoal by dry distillation of coconut husk by a self-combustion direct heating kiln are used. A method for producing coconut husk charcoal, in which secondary combustion air is supplied to the exhaust gas containing unburned components discharged from the self-combustion direct heating kiln and burned to form a high-temperature gas, and the high-temperature gas is conveyed to the boiler. As a result, it is possible to use coconut husks that have been used as fuel in the past as raw material for coconut husk charcoal, and as a result, coconut husk charcoal can be manufactured with reduced raw material costs. It becomes.

It is explanatory drawing of the coconut husk charcoal manufacturing system which concerns on one embodiment of this invention. It is explanatory drawing demonstrated in detail one part of the coconut husk charcoal manufacturing system shown in FIG. It is explanatory drawing of the coconut husk charcoal manufacturing system which concerns on other embodiment of this invention. It is explanatory drawing of the utilization condition of the biomass boiler in a coconut oil manufacturing factory. It is explanatory drawing of an example of a coconut husk charcoal manufacturing apparatus.

1 Coconut Charcoal Production System (Embodiment 1)
DESCRIPTION OF SYMBOLS 3 Boiler 5 High temperature gas conveyance and introduction apparatus 7 High temperature gas introduction part 9 Flow path 10 Ejector apparatus 12 Inlet 13 Coconut charcoal manufacturing system (Embodiment 2)
DESCRIPTION OF SYMBOLS 15 Exhaust gas introduction duct 17 Secondary combustion burner 19 Secondary combustion air introduction part 21 Biomass boiler 23 Turbine 25 Generator 27 Palm oil production plant 31 Coconut husk charcoal production apparatus 33 Rotary kiln 35 Raw material inlet 37 Outlet 38 Pit 39 High temperature conveyor 41 Secondary combustion tower

[Embodiment 1]
The coconut husk charcoal manufacturing system which implements the coconut husk charcoal manufacturing method of the present invention will be described with reference to FIG. In FIG. 1, the same parts as those in FIGS. 4 and 5 are denoted by the same reference numerals.
As shown in FIG. 1, a coconut husk charcoal manufacturing system 1 according to an embodiment of the present invention can use coconut husk as fuel and a boiler 3 that can be used by introducing high-temperature gas from the outside, and a self-combustion direct heating kiln. The secondary kiln is supplied to the exhaust gas containing unburned matter discharged from the self-burning direct heating kiln and the coconut husk charcoal manufacturing apparatus 31 for producing coconut husk charcoal by dry distillation of the coconut husk by the rotary kiln 33. And a high-temperature gas transport / introduction device 5 for transporting and introducing the high-temperature gas into the boiler 3.
Each configuration will be described in detail.

<Boiler>
The boiler 3 can use coconut husk as fuel and can be used by introducing high-temperature gas from the outside. That is, it has a burner (not shown) for burning coconut shells as fuel and a high-temperature gas introduction part 7 for introducing a high-temperature gas from the outside, both of the introduced high-temperature gas and the combustion gas generated by the combustion of the burner Gas can be introduced into the heat transfer section to heat the feed water.
In the coconut oil factory where the boiler 3 is installed, as described above, for example, the turbine 23 using steam generated in the boiler 3, the generator 25 driven by the turbine 23, the electric power of the generator 25 and the turbine A coconut oil production plant 27 that uses the steam that has been supplied to 23 is provided.

<Coconut shell charcoal production equipment>
The coconut husk charcoal manufacturing apparatus 31 produces coconut husk charcoal by dry-distilling coconut husk by a self-combustion direct heating kiln. For example, a rotary kiln 33 similar to that shown in FIG. 5 can be used as the self-combustion direct heating kiln.

In the coconut husk charcoal manufacturing apparatus 31, as shown in FIG. 5, the coconut husk of raw material is supplied to the rotary kiln 33 from the raw material inlet 35, and the primary combustion air is introduced from the side facing the raw material inlet 35 in the rotary kiln 33. . Coconut husks are dry-distilled while moving in the rotary kiln 33 toward the discharge port 37.
The exhaust gas discharged from the raw material input side of the rotary kiln 33 still contains unburned components, and this exhaust gas is discharged to the high temperature gas transfer / introduction device 5 side.
In addition to the rotary kiln 33, a swing kiln, a shaft kiln, or the like may be used as an example of the self-combustion direct heating kiln.

<High-temperature gas transfer / introduction device>
The high-temperature gas transport / introduction device 5 supplies secondary combustion air to the exhaust gas containing unburned components discharged from the rotary kiln 33 and burns it into a high-temperature gas, and introduces the high-temperature gas into the boiler 3.
The main configuration of the high-temperature gas transfer / introduction device 5 is a high-temperature gas flow path 9 (duct) that connects the rotary kiln 33 and the boiler 3 and a pump that is provided in the flow path 9 and transfers high-temperature gas to the boiler 3 side. It is the ejector apparatus 10 which functions.

The ejector device 10 is provided in the middle of the flow path 9 and introduces the secondary combustion air into the flow path 9 and introduces the secondary combustion air into the introduction port 11 so as to exert the ejector effect. And a blower (not shown) such as a blower. As shown in FIG. 2, the ejector device 10 configured as described above sends secondary combustion air from the introduction port 11 as a high-speed jet into the flow path 9 and uses the attracting action of the sent secondary combustion air. Then, the exhaust gas and the high-temperature gas combusted with the exhaust gas are pumped to the boiler 3 side.

Next, the coconut husk charcoal manufacturing method using the coconut husk charcoal manufacturing system 1 comprised as mentioned above is demonstrated.
PKS (coconut shells) is put into the rotary kiln 33, primary combustion air is introduced into the rotary kiln 33, and the palm shells are dry-distilled in the kiln. Exhaust gas containing unburned matter generated by dry distillation of coconut husk is discharged to the high-temperature gas transport / introduction device 5 side.
The exhaust gas discharged into the flow path 9 (duct) of the high-temperature gas transfer / introduction device 5 is mixed with the secondary combustion air blown from the ejector device 10 and burned to become high-temperature gas, and at the same time, ejector by the secondary combustion air Due to the effect, the inside of the flow path 9 is pumped to the boiler 3 side and introduced into the boiler 3.

On the other hand, in the boiler 3, steam is generated by heating the water in the heat transfer section with the combustion gas obtained by burning the burner using fiber and PKS (coconut shell) as fuel and the high-temperature gas introduced from the high-temperature gas transport / introduction device 5. generate. The turbine 23 is rotated by this steam to drive the generator 25 to obtain electric power, which is used as electric power for the coconut oil production plant 27. The steam after turning the turbine 23 is also used in the palm oil production plant 27.
The exhaust gas from the boiler 3 is sent to a dust collector and discharged to the atmosphere after dust collection.

The process data in the coconut husk charcoal manufacturing system 1 of this Embodiment comprised as mentioned above is shown. The data shown below is when steam equivalent to that of the boiler 3 shown in FIG. 4 is generated to produce the same amount of coconut husk charcoal as that shown in FIG.

PKS (palm palm) 2ton / h (normal temperature) is introduced into the rotary kiln 33, primary combustion air is introduced at 3,200m3N / h (normal temperature), and dry distillation in the kiln, exhaust gas (CO: 9.7%, H2: 10.5%) ) (5,050m3n / h, 860 ℃). The generated exhaust gas is discharged to the hot gas transfer / introduction device 5. The amount of secondary combustion air required to burn exhaust gas at 860 ℃ 5,050m3N / h is 6,850m3N / h. By supplying such secondary combustion air, unburned CO and H2 in the exhaust gas can be reduced. By combustion, the gas temperature rises to 1,010 ° C. and is supplied to the boiler 3.
For example, even if it is assumed that the total distance of the duct length is 50 m, the number of elbows provided in the bend of the flow path 9 is 3, and the pressure loss of the duct system reaches 1,500 Pa, the flow velocity of the introduced secondary combustion air is 36 m. When it is / s, the pressure rise due to the ejector effect is 2,600 Pa, and the high-temperature gas can be sufficiently conveyed to the boiler 3 by the ejector effect of the secondary combustion air.

In the boiler 3, the boiler 3 is cooked using fiber 6 ton / h (room temperature) and PKS (coconut shell) 3 ton / h (room temperature) as fuel, and 20MPa of steam is generated 25ton / h. To obtain an electric power of 8,000 KW, which is used as electric power for the palm oil production plant 27. Further, steam (0.4 MPa, 25 ton / h) after turning the turbine 23 is also used in the palm oil production plant 27.
The exhaust gas (300 ° C.) of the boiler 3 is sent to a dust collector and discharged to the atmosphere after dust collection.

As described above, when the boiler 3 and the rotary kiln 33 are separately present (see FIGS. 4 and 5), the amount of coconut husk as fuel required is 4 ton / h. Reduced to 3ton / h. When 1 ton / h of coconut husk, which is the decrease, is turned into coconut husk charcoal, the raw coconut husk 2 ton / h, which was originally required for coconut husk charcoal production, is halved to 1 ton / h.
From this, it can be considered that the raw material cost in the coconut husk charcoal price 350 US $ / ton has been halved, and as such, the raw material cost is 112.5 US $, the ratio of the raw material cost to the product price is 32%, and the profit rises To do.
Product prices can also be lowered by increasing profits. Currently, the price of coke for metallurgical use and the price of coconut husk charcoal are almost in competition, but if the price of coconut husk charcoal is reduced to 300 US $ / ton or less, competitiveness can be secured.

As described above, according to the coconut husk charcoal manufacturing system 1 of the present embodiment, the coconut husk used as the fuel in the conventional example can be used as the coconut husk charcoal raw material. It becomes possible to manufacture at a reduced cost.

In the above embodiment, the high temperature gas is conveyed to the boiler 3 side by the ejector device 10 provided in the high temperature gas conveyance / introduction device 5. For this reason, the effect that it becomes possible to pump hot gas to the boiler 3 side by a simple means is acquired.
In addition, as a device for pumping high-temperature gas to the boiler 3 side in the high-temperature gas transport / introduction device 5, the device has heat resistance so that high-temperature gas around 1000 ° C. handled in the coconut shell charcoal manufacturing system 1 of the present embodiment can be pumped. Any device other than the ejector device 10 may be used.

[Embodiment 2]
The coconut husk charcoal manufacturing system which concerns on Embodiment 2 of this invention is demonstrated based on FIG. 3, the same parts as those in FIG. 1 are denoted by the same reference numerals.
The coconut husk charcoal manufacturing system 13 of the present embodiment can dry coconut husks by using a boiler 3 that can use coconut husks as fuel and introduce exhaust gas containing unburned components from the outside, and can be used as fuel. Coconut husk charcoal manufacturing apparatus 31 to be manufactured, exhaust gas introduction duct 15 constituting an introduction path for introducing exhaust gas containing unburned gas discharged from the rotary kiln 33 into the boiler 3, and the exhaust gas introduced into the boiler 3 The secondary combustion burner 17 includes a secondary combustion air introduction unit 19 that introduces secondary combustion air so as to exert an ejector effect. The exhaust gas in the exhaust gas introduction duct 15 is drawn into the secondary combustion burner 17 by the ejector effect of the secondary combustion air. A.

In the first embodiment, the exhaust gas containing unburned matter generated in the rotary kiln 33 is combusted in the flow path 9 (duct) of the high-temperature gas transport / introduction device 5 to form a high-temperature gas, and this high-temperature gas is supplied to the boiler 3. I was trying to do it.
However, in the present embodiment, the exhaust gas is supplied to the boiler 3 side without being burned in the flow path 9 (duct), and burned by the secondary combustion burner 17 provided on the boiler 3 side.
In the present embodiment, as the configuration of the secondary combustion burner 17, a secondary combustion air introduction unit 19 that introduces secondary combustion air so as to exhibit the ejector effect is provided, and exhaust gas is discharged by the ejector effect of the secondary combustion air. The secondary combustion burner 17 is drawn and combusted.

In the present embodiment, the exhaust gas generated in the rotary kiln 33 is not burned in the flow path 9 (duct) and is drawn in by the secondary combustion burner 17, so that the device that connects the rotary kiln 33 and the boiler 3 is The rotary kiln does not require the function of supplying the secondary combustion air to the exhaust gas for combustion as in the high temperature gas transfer / introduction device 5 of the first embodiment and transferring the generated high temperature gas to the boiler 3 side. An exhaust gas introduction duct 15 which is a mere duct is installed in a flow path connecting 33 and the boiler 3.

According to the coconut husk charcoal manufacturing system 13 of the present embodiment, as in the first embodiment, the coconut husk used as fuel in the conventional example can be used as the raw material for the coconut husk charcoal. Can be manufactured at a reduced raw material cost.

In the above description, an example in which one secondary combustion burner 17 is installed is shown, but the number of secondary combustion burners 17 is not limited to one, and a plurality of secondary combustion burners 17 may be provided.

Claims

A coconut husk charcoal production method that uses coconut husk as fuel and a boiler that can be used by introducing high-temperature gas from the outside and a coconut husk charcoal production device that produces coconut husk charcoal by dry distillation using a self-combustion direct heating kiln. There,
The secondary combustion air is supplied to the exhaust gas containing unburned components discharged from the self-combustion direct heating kiln and burned to form a high-temperature gas, and the high-temperature gas is conveyed to the boiler and introduced. A method for producing coconut husk charcoal.
The method for producing coconut husk charcoal according to claim 1, wherein secondary combustion air for secondary combustion of the exhaust gas is used as a jet that exhibits an ejector effect in order to convey the high-temperature gas to the boiler.
A boiler that can use coconut husk as fuel and can be used by introducing high-temperature gas from the outside, a coconut husk charcoal manufacturing apparatus that produces coconut husk charcoal by dry distillation of coconut husk by a self-burning direct heating kiln, and the self-burning direct heating kiln High-temperature gas transport / introduction device for supplying secondary combustion air for secondary combustion of exhaust gas containing unburned gas discharged from the fuel to burn it into a high-temperature gas, and transporting and introducing the high-temperature gas to the boiler A coconut husk charcoal manufacturing system characterized by comprising:
The high-temperature gas transfer / introduction device has an inlet for secondary combustion air in a flow path for introducing the high-temperature gas to the boiler, and introduces the secondary combustion air into the inlet so as to exert an ejector effect. The coconut husk charcoal manufacturing system according to claim 3, wherein the hot gas is sucked and introduced into the boiler by an ejector effect of the secondary combustion air.
A boiler that can use coconut husk as fuel and introduces exhaust gas containing unburned components from the outside and can be used as fuel, a coconut husk charcoal manufacturing apparatus that produces coconut husk charcoal by dry distillation of coconut husk by a self-burning direct heating kiln, An exhaust gas introduction duct constituting an introduction path for introducing exhaust gas containing unburned gas discharged from a self-combustion direct heating kiln into the boiler, and secondary combustion for secondary combustion of the exhaust gas introduced into the boiler The secondary combustion burner includes a secondary combustion air introduction section for introducing secondary combustion air so as to exert an ejector effect, and the exhaust gas duct is formed by the ejector effect of the secondary combustion air. A coconut husk charcoal production system characterized in that the exhaust gas inside is drawn into the secondary combustion burner.