JP6996827B2 - Solid fuel manufacturing equipment - Google Patents

Description

The present invention relates to a solid fuel manufacturing apparatus, for example , a manufacturing apparatus for carbonizing biomass into a solid fuel.

For example, in thermal power plants, it is being considered to effectively use biomass, which has been treated as an unused resource, as fuel. In particular, the use of carbon-neutral woody biomass has been studied (for example, Patent Document 1). Patent Document 1 proposes that woody biomass is thermally decomposed to generate carbides and gas, and the carbides are used as fuel for a boiler to obtain electric power.

It is also considered that carbides made from biomass are mixed with coal and burned in a boiler to obtain electric power. Under these circumstances, the amount of biomass used is increasing. However, as the demand for biomass increases, it is expected that it will be difficult to obtain biomass that can be co-fired with coal and that the price of biomass will rise.

For this reason, at present, the use of biomass that cannot be co-fired with coal, for example, biomass (woody biomass) containing a large amount of chlorine in trees cut down near the sea, is being considered. If biomass containing chlorine can be used, the amount of biomass applicable to coal-fired power plants can be increased, and the cost required for acquisition can be suppressed as the supply of biomass increases. It is believed that it can be done.

Since the solid fuel obtained by carbonizing biomass containing chlorine has a high chlorine content per unit volume, it is preferable to remove chlorine in the process of carbonization. However, it has been technically difficult to obtain a solid fuel having an arbitrary chlorine content reduced in the process of carbonization. On the other hand, if the user has an exhaust gas treatment that can sufficiently remove chlorine, the raw material can be obtained at low cost even if it is a solid fuel obtained from biomass containing chlorine. Because it can be done, it is a reality that there is a desire to use it.

Therefore, when obtaining solid fuel from biomass containing chlorine (when performing carbonization treatment), if the chlorine content can be adjusted to some extent, the biomass that can be obtained at a stable price can be selected according to the circumstances of the user. A solid fuel having a desired chlorine content can be obtained, and it becomes possible to meet the demand for using inexpensive biomass.

Under these circumstances, the emergence of technology that can adjust the chlorine removal status when carbonizing biomass containing chlorine into a solid fuel is desired.

Japanese Unexamined Patent Publication No. 2014-205730

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a solid fuel production apparatus capable of producing a solid fuel by adjusting the chlorine removal status.

In particular, it is an object of the present invention to provide a solid fuel production apparatus capable of adjusting the removal rate of chlorine when carbonizing biomass (woody biomass) to obtain a carbide (solid fuel).

The method for adjusting the chlorine status of a solid fuel for carrying out the present invention is a carbonization rate with respect to a desired chlorine removal rate of the solid fuel when hot air is supplied to the solid fuel transferred in the reaction tank to carbonize the solid fuel. By deriving (the weight ratio of the fixed carbon content in the solid fuel that has been carbonized) and adjusting the temperature, flow rate, and transfer speed of the solid fuel so that the derived carbonization ratio is obtained, the solid It is preferable to control the chlorine removal status of the fuel.

Thereby, by adjusting the carbonization status of the solid fuel, the chlorine removal status is controlled during the carbonization treatment, and the solid fuel from which chlorine is removed in a desired condition can be obtained.
Further, the carbonization rate in the carbonization treatment of the raw material, that is, the content of chlorine in the carbonized solid fuel can be adjusted according to the weight ratio of the fixed carbon content in the carbonized solid fuel.

As a result, it becomes possible to adjust the removal status of chlorine to produce solid fuel. Since the chlorine removal status can be adjusted, the cost and exhaust gas purification performance can be improved depending on the status of the chlorine purification system on the side where the solid fuel is used, without being restricted by the chlorine content of the raw material. It becomes possible to select any raw material based on this.

Incidentally, Japanese Patent Application Laid-Open No. 2005-67789 discloses a technique for roasting woody biomass to produce a solid fuel having a chlorine content of 0.002% or less. This technology is a technology that has found the conditions for removing chlorine as much as possible. Therefore, the technique disclosed in Japanese Patent Application Laid-Open No. 2005-67789 is a technique in a field different from the method for adjusting the chlorine removal status of the solid fuel of the present invention, which can adjust the chlorine removal status to an arbitrary status.

Further, in the above-mentioned method for adjusting the chlorine removal status of the solid fuel, the chlorine removal rate is the content ratio of chlorine in the raw material of the solid fuel and the chlorine in the carbonized fuel after the raw material is carbonized. It is preferable to derive it based on the content ratio of.

In the present invention according to claim 2, it is possible to obtain a solid fuel from which chlorine has been removed at a desired chlorine removal rate. The derivation of the chlorine removal rate is derived based on the chlorine content in the raw material of the solid fuel and the chlorine content in the carbonized fuel after the raw material is carbonized.

for example,
The chlorine content in the raw material is m1.
The supply amount of raw materials is m0,
The chlorine content in the carbonized fuel is m2.
When the amount of carbonized fuel emitted (the smaller the amount of carbonized fuel, the more carbonized) is m3.
The chlorine removal rate R can be obtained by the following formula (1).
R = {(m1 ・ m0)-(m2 ・ m3)} / (m1 ・ m0) ・ ・ ・ (1)
It has been found that the chlorine removal rate R is derived based on the treatment temperature when carbonizing the raw material (see FIG. 3 described later).
Therefore, the chlorine content m2 in the carbonized fuel can be obtained by the following formula (2).
m2 = m1 ・ m0 (1-R) / m3 ... (2)

Further, in the above -mentioned method for adjusting the chlorine removal status of the solid fuel, it is preferable that the carbonization status is the treatment temperature of the carbonization treatment of the raw material of the solid fuel.

Thereby, the content of chlorine in the carbonized solid fuel can be adjusted according to the treatment temperature of the carbonization treatment of the raw material.

Further, in the above -mentioned method for adjusting the chlorine removal status of the solid fuel, it is preferable that the raw material of the solid fuel is biomass (woody biomass).

This allows the biomass to be carbonized into a solid fuel from which chlorine has been removed in the desired chlorine removal situation. As the biomass, it is preferable to use woody biomass such as forest residue, thinned wood, unused trees, lumber waste, and construction waste. Further, as the biomass, unused biomass such as rice, straw and rice husk, and waste biomass such as used paper, livestock manure, food residue and sludge can be used.

The solid fuel manufacturing apparatus of the present invention according to claim 1 for achieving the above object includes a carbonization means for carbonizing a raw material into a solid fuel, a carbonization status adjusting means for controlling the carbonization status by the carbonization means, and a carbonization status adjusting means. The carbonization status adjusting means includes a control means for outputting an operation command, and the control means includes a carbonization rate deriving means for determining the carbonization rate as the carbonization status of the solid fuel carbonized by the carbonization means, and the control means. Is stored as chlorine information about the relationship of the carbonization rate with respect to the predetermined carbonization rate, the desired carbonization rate is input, and the desired carbonization rate derived with respect to the input carbonization rate is obtained. It is characterized by outputting an operation instruction to a carbonization status adjusting means.

In the present invention according to claim 1 , by adjusting the carbonization status of the solid fuel by the carbonization status adjusting means based on the command of the control means, the chlorine removal status during the carbonization treatment by the carbonization means is controlled. The command of the control means is operated by the carbonization condition adjusting means so that the input desired carbonization condition is obtained. By setting the desired carbonization state, the chlorine removal state is controlled to the desired state during the carbonization treatment, and a solid fuel from which chlorine has been removed in the desired state can be obtained.
Further, it is possible to obtain a solid fuel from which chlorine has been removed at a desired chlorine removal rate. The derivation of the chlorine removal rate is derived based on the chlorine content in the raw material of the solid fuel and the chlorine content in the carbonized fuel after the raw material is carbonized. The chlorine removal rate can be obtained, for example, by the above-mentioned formula (1). Based on the formula (1), the chlorine content in the carbonized fuel can be obtained by the above-mentioned formula (2).
Further, the carbonization rate in the carbonization treatment of the raw material obtained by the carbonization rate derivation means, that is, the content of chlorine in the carbonized solid fuel according to the weight ratio of the fixed carbon content in the carbonized solid fuel. The situation can be adjusted.

As a result, it becomes possible to adjust the removal status of chlorine to produce solid fuel. Since the chlorine removal status can be adjusted, the cost and exhaust gas purification performance can be improved depending on the status of the chlorine purification system on the side where the solid fuel is used, without being restricted by the chlorine content of the raw material. It becomes possible to select any raw material based on this.

Incidentally, Japanese Patent Application Laid-Open No. 2005-67789 discloses a technique for roasting woody biomass to produce a solid fuel having a chlorine content of 0.002% or less. This technology is a technology that has found the conditions for removing chlorine as much as possible. Therefore, the technique disclosed in Japanese Patent Application Laid-Open No. 2005-67789 is a technique in a field different from the method for adjusting the chlorine removal status of the solid fuel of the present invention, which can adjust the chlorine removal status to an arbitrary status.

Further, in the above -mentioned solid fuel manufacturing apparatus, the carbonization means is provided with a processing temperature detecting means for detecting the processing temperature when the raw material is carbonized, and the carbonization state is detected by the processing temperature detecting means. It is preferable that the processing temperature is the same.

This makes it possible to adjust the chlorine content in the carbonized solid fuel according to the processing temperature (processing temperature for carbonization of the raw material) detected by the processing temperature detecting means.

Further, the solid fuel manufacturing apparatus of the present invention according to claim 2 is the solid fuel manufacturing apparatus according to claim 1 , wherein the raw material of the solid fuel is biomass (woody biomass).

In the present invention according to claim 2 , the biomass can be carbonized to obtain a solid fuel from which chlorine has been removed in a desired chlorine removal situation. As the biomass, it is preferable to use woody biomass such as forest residue, thinned wood, unused trees, lumber waste, and construction waste. Further, as the biomass, unused biomass such as rice, straw and rice husk, and waste biomass such as used paper, livestock manure, food residue and sludge can be used.

The method for adjusting the chlorine removal status of a solid fuel of the present invention makes it possible to produce a solid fuel by adjusting the chlorine removal status.

Further, the solid fuel production apparatus of the present invention can produce solid fuel by adjusting the chlorine removal state.

The method for adjusting the chlorine removal status of a solid fuel and the equipment for producing a solid fuel of the present invention adjust the removal rate of chlorine, in particular, when carbonizing biomass (woody biomass) to obtain carbonized material (solid fuel). It becomes possible to obtain a carbide (solid fuel) from which chlorine has been removed at a desired chlorine removal rate.

It is a schematic system diagram of the solid fuel manufacturing apparatus to which the chlorine removal situation adjustment method which concerns on one Example of this invention is applied. It is a block block diagram of the control means of the solid fuel manufacturing apparatus which concerns on a reference example of this invention. It is a graph which shows the relationship between the chlorine removal rate and the processing temperature. It is a block block diagram of the control means of the solid fuel manufacturing apparatus which concerns on one Embodiment of this invention. It is a graph which shows the relationship between the chlorine removal rate and the ratio (carbonization rate) of fixed carbon.

The method for adjusting the chlorine removal status of the solid fuel of this embodiment grasps the carbonization status (carbonization temperature, carbonization rate) of the woody biomass when carbonizing the biomass (woody biomass) and using it as a fuel, and is based on the carbonization status. By deriving the removal status of chlorine (removal rate of chlorine), the removal rate of carbonized carbonized wood (solid fuel) of woody biomass is controlled according to the carbonization status. For example, it is possible to obtain a carbide from which chlorine has been removed at a desired chlorine removal rate.

Therefore, it becomes possible to produce woody biomass by adjusting the chlorine removal rate. Since the chlorine removal rate can be adjusted, it is not restricted by the chlorine content of the raw material, and it is based on the cost and exhaust gas purification performance depending on the situation such as the chlorine purification system on the side where the carbide is used. It becomes possible to select any raw material.

In other words, when carbonizing carbonized material is obtained from woody biomass containing chlorine (when carbonizing), the chlorine content can be adjusted to some extent, so the woody biomass that can be obtained at a stable price can be used according to the circumstances of the user. A carbide having a desired chlorine content can be obtained, and it becomes possible to meet the demand for using inexpensive woody biomass.

The derivation of the chlorine removal rate is based on the chlorine content in the woody biomass, which is the raw material for carbonization, and the chlorine content in the charcoal (carbonized fuel) after carbonizing the woody biomass. Will be done.

for example,
The chlorine content in the raw wood biomass is m1.
The supply amount of woody biomass as a raw material is set to m0.
The chlorine content in the carbide (carbonized fuel) is m2.
When the amount of carbonized material (carbonized fuel) discharged (the smaller the amount of carbonized fuel, the more carbonized) is set to m3.
The chlorine removal rate R can be calculated by the following formula.
R = {(m1 ・ m0)-(m2 ・ m3)} / (m1 ・ m0)
It has been found that the chlorine removal rate R is derived based on the treatment temperature when carbonizing the raw material (see FIG. 3 described later). Therefore, the chlorine content m2 in the carbonized fuel can be calculated by the following formula.
m2 = m1 ・ m0 (1-R) / m3

As the raw material biomass, it is preferable to use woody biomass such as forest residue, thinned wood, unused trees, lumber waste, and construction waste. Further, as the raw material biomass, unused biomass such as rice, straw and rice husk, and waste biomass such as used paper, livestock manure, food residue and sludge can be used.

A solid fuel manufacturing apparatus for carrying out a method for adjusting the chlorine removal status of a solid fuel as a reference for an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is a schematic system for explaining an overall configuration of a solid fuel manufacturing apparatus according to an embodiment of the present invention, and FIG. 2 is a block configuration of a control means in the solid fuel manufacturing apparatus according to a reference example of the present invention. No. 3 shows a graph showing the relationship between the chlorine removal rate and the processing temperature.

As shown in FIG. 1, it is provided with a carbonization facility 1 as a carbonization means for carbonizing biomass (woody biomass) as a raw material to carbonize fuel (solid fuel). The carbonization facility 1 includes a heating main body 2 in which woody biomass is sequentially transported in the axial direction from the inlet portion 3 to the outlet portion 4. The heating main body 2 is composed of a rotating body rotated by a motor 5b, and the woody biomass is conveyed toward the outlet portion 4 by the rotation of the heating main body 2. Woody biomass is supplied to the heating main body 2 from a conveyor 6 (screw conveyor) driven by a motor 5a. By controlling the supply speed of the woody biomass by the conveyor 6 and the transport speed of the woody biomass by the rotation of the heating main body 2, the carbonization time of the woody biomass is adjusted (carbonization status adjusting means).

The heating main body 2 of the carbonization equipment 1 is covered with the heating drum 11, and hot air is supplied between the heating main body 2 and the heating drum 11 (inside the heating drum 11), so that the woody biomass inside the heating main body 2 is carbonized. Will be done. By controlling the temperature of the hot air, the carbonization time of woody biomass is adjusted (carbonization status adjusting means). The heating drum 11 is provided with temperature detecting means 13 as a processing temperature detecting means (for example, provided at four points in the axial direction of the heating drum 11), and the processing temperature of the carbonization treatment is detected by the temperature detecting means 13.

In the above embodiment, an example in which a rotary drum type reaction facility for rotating a heating main body 2 (rotating body) to transport raw materials is applied as the carbonization facility 1 has been described, but a multi-stage combustion furnace is provided. It is possible to apply other types of equipment that heat (directly or indirectly) the raw materials, such as carbonized reaction equipment, fluidized bed type reaction equipment, and mobile layer type reaction equipment.

The carbonized fuel 8, which is carbonized woody biomass, is discharged from the outlet portion 4 via the cooling means 12. Further, the pyrolysis gas containing chlorine generated by carbonization is discharged from the outlet portion 4 and sent to the processing equipment for cleaning. Since the pyrolysis gas can also be used as fuel, all or part of the pyrolysis gas is put into the fuel supply path 16 described later.

A hot air furnace 15 for supplying hot air is provided inside the heating drum 11, fuel is supplied to the hot air furnace 15 from a fuel supply path 16, and combustion air is supplied from an air supply path 17. The fuel supply path 16 is provided with the flow rate adjusting means 18a, and the air supply path 17 is provided with the flow rate adjusting means 18b. By controlling the flow rate adjusting means 18a and 18b, the fuel amount and the air amount are adjusted, and the temperature and the flow rate of the hot air are controlled (carbonization condition adjusting means).

The carbonization equipment 1 is provided with a control means 21 that outputs an operation instruction to the carbonization status adjusting means so that the woody biomass has a desired carbonization status (chlorine removal rate). That is, information on the desired chlorine removal rate, information on the chlorine content of woody biomass (raw material information), and the like are input to the control means 21, and the carbonization treatment detected by the temperature detecting means 13 is performed as necessary. Temperature information is entered.

The control means 21 outputs a drive command to the motors 5a and 5b, and outputs a control command to the flow rate adjusting means 18a and 18b. That is, the supply speed of the woody biomass by the conveyor 6 is controlled, and the rotation speed of the heating main body 2 is controlled to control the transport speed of the woody biomass. Then, the state of the fuel amount in the fuel supply path 16 and the state of the air flow rate for combustion in the air supply path 17 are controlled, and the temperature and the flow rate of the hot air from the hot air furnace 15 are controlled. By controlling the temperature and flow rate of hot air from the hot air furnace 15, the treatment temperature of carbonization treatment is controlled, and the chlorine content of carbonized fuel 8 carbonized according to the treatment temperature (chlorine removal rate of carbonized fuel). ) Is adjusted.

As shown in FIG. 2, the control means 21 stores the relationship between the chlorine removal rate (chlorine removal status) and the predetermined treatment temperature (carbonization status) as the temperature-removal rate map 22 (chlorine information). In the control means 21, the temperature with respect to the input desired chlorine removal rate is derived from the temperature-removal rate map 22, and the temperature and flow rate of the hot air are adjusted by the temperature control means 23 so as to be the derived temperature. The control means 21 outputs a control command to the air supply path 17 (carbonization equipment 1) so that the temperature and flow rate of the hot air adjusted by the temperature control means 23 are reached.

As shown in FIG. 3, the temperature-removal rate map 22 maps the relationship between the chlorine removal rate and the treatment temperature. For example, when the treatment temperature for carbonizing woody biomass reaches a certain temperature T1 (for example, 360 ° C to 380 ° C), the chlorine removal rate gradually increases and a large amount of chlorine is removed (for example, removal). Rate 80% to 90%).

When the treatment temperature exceeds T1, which is a certain temperature, the increase in the chlorine removal rate almost disappears, and when the treatment temperature reaches TS (for example, 400 ° C.), which is a temperature higher than a certain temperature, the temperature becomes higher. However, the chlorine removal rate does not change (for example, 90% is the upper limit).

For example, if a chlorine treatment facility is not provided, the desired chlorine removal rate of the required carbonized fuel is high (close to 100%), so the treatment temperature for carbonizing woody biomass is set to T1. By adjusting and operating the carbonization facility 1, it is possible to obtain the carbonized fuel 8 from which chlorine has been removed at the maximum removal rate.

Further, for example, if a smoke exhaust facility capable of removing chlorine at a high level is provided, the desired chlorine removal rate of the required carbonized fuel does not have to be high (about 70%), so that woody biomass is carbonized. By adjusting the processing temperature to a temperature lower than T1 and operating the carbonization facility 1, it is possible to obtain the carbonized fuel 8 from which chlorine has been removed at a desired removal rate with the minimum energy consumption. ..

As a result, by controlling the treatment temperature when carbonizing woody biomass, it becomes possible to produce carbonized fuel 8 (solid fuel) having an arbitrary chlorine removal rate (desired chlorine removal rate).

In other words, it is possible to adjust the treatment temperature when carbonizing woody biomass to adjust the chlorine removal rate (removal status) to produce carbonized fuel 8 (solid fuel), and it is possible to produce chlorine in the woody biomass used. Arbitrary (cheap and inexpensive chlorine is contained) based on the cost and the purification performance of the exhaust gas, depending on the situation such as the chlorine purification system on the side where the carbonized fuel 8 (solid fuel) is used, without being restricted by the content situation. It will be possible to select woody biomass (in the current situation).

The above-mentioned solid fuel production apparatus can adjust the chlorine removal rate by adjusting the treatment temperature when carbonizing woody biomass to obtain carbides (solid fuel).

An embodiment of the present invention will be described with reference to FIGS. 1, 4, and 5. In this embodiment, the chlorine removal rate of the carbonized fuel 8 is adjusted according to the carbonization rate of the carbonized fuel 8.

A drive command is output from the control means 21 to the motor 5, and a control command is output to the flow rate adjusting means 18. That is, the transport speed by the conveyor 6 is controlled to adjust the carbonization time of the woody biomass. By adjusting the carbonization time, the carbonization rate of the carbonized fuel 8 (the weight ratio of the fixed carbon amount in the carbonized fuel that has been carbonized) is controlled, and the chlorine of the carbonized fuel 8 carbonized according to the carbonization rate is controlled. Content (removal rate of carbonization of carbonized fuel 8) is adjusted.

The control means 21 is provided with a carbonization rate derivation means for obtaining the carbonization rate (the weight ratio of the fixed carbon content in the carbonized fuel subjected to the carbonization treatment) of the carbonized fuel 8 carbonized by the heating main body 2, and the carbonization rate is derived. The relationship between the carbonization rate (carbonization status) obtained by the means and the chlorine removal rate (chlorination status) is stored as the carbonization rate-removal rate map 25.

In the control means 21, the carbonization rate with respect to the input desired chlorine removal rate is derived from the carbonization rate-removal rate map 25, and the temperature, flow rate, and transfer speed of the hot air are set so as to be the derived carbonization rate. It is controlled, and the carbonization temperature and carbonization time of the woody biomass are adjusted by the carbonization rate controlling means 26 (the carbonization rate is adjusted).

The control means 21 gives a control command to the air supply path 17 (carbonization equipment 1) and the motor 5 (carbonization equipment 1) so that the temperature, flow rate, and transport speed of the hot air adjusted by the carbonization rate control means 26 are obtained. Is output.

As shown in FIG. 5, the carbonization rate-removal rate map 25 maps the relationship between the chlorine removal rate and the ratio of fixed carbon (fixed carbon amount: carbonization rate). For example, when the ratio of fixed carbon in carbonized fuel exceeds a certain ratio, for example, from 20 wt% to 30 wt%, the chlorine removal rate rises sharply and a large amount of chlorine is removed (for example). , Removal rate 80% to 90%).

When the ratio of fixed carbon in the carbonized fuel exceeds a certain ratio, for example, when it exceeds 30 wt%, the increase in the chlorine removal rate almost disappears, and even if the ratio of fixed carbon becomes higher than this, the chlorine removal rate Does not change (for example, 90% is the upper limit).

For example, if a carbonization facility is not provided, the desired carbonization rate of the required carbonized fuel will be high (close to 100%), so the proportion of fixed carbon when carbonizing woody biomass (close to 100%). By adjusting the operation of the carbonization facility 1 so that the carbonization rate) is, for example, 30 wt%, the carbonized fuel 8 from which chlorine has been removed with the maximum removal rate can be obtained.

Further, for example, if a smoke exhaust facility capable of removing chlorine at a high level is provided, the desired carbonization rate of the required carbonized fuel does not have to be high (about 70%), so that woody biomass is carbonized. By adjusting the ratio of fixed carbon (carbonization rate) to a state lower than 30 wt% and adjusting the operation of the carbonization facility 1, chlorine is removed at the desired removal rate with the minimum energy consumption. Carbonized fuel 8 can be obtained.

As a result, by controlling the carbonization rate when woody biomass is carbonized, it becomes possible to produce a carbonized fuel 8 (solid fuel) having an arbitrary chlorine removal rate (desired chlorine removal rate).

In other words, it is possible to adjust the carbonization rate when carbonizing woody biomass to adjust the chlorine removal rate (removal status) to produce carbonized fuel 8 (solid fuel), and it is possible to produce chlorine in the woody biomass used. Arbitrary (cheap and inexpensive chlorine is contained) based on the cost and the purification performance of the exhaust gas, depending on the situation such as the chlorine purification system on the side where the carbonized fuel 8 (solid fuel) is used, without being restricted by the content situation. It will be possible to select woody biomass (in the current situation).

The above-mentioned solid fuel production apparatus can adjust the removal rate of chlorine by adjusting the carbonization rate when carbonizing woody biomass to obtain carbonized material (solid fuel).

INDUSTRIAL APPLICABILITY The present invention can be used in the industrial field of a method for adjusting the chlorine removal status of a solid fuel and a solid fuel manufacturing apparatus.

1 Carbonization equipment 2 Heating body 3 Inlet part 4 Exit part 5a, 5b Motor 6 Conveyor 8 Carbonized fuel 11 Heating drum 12 Cooling means 13 Temperature detection means 15 Hot air furnace 16 Fuel supply path 17 Air supply path 18a, 18b Flow control means 21 Control Means 22 Temperature-removal rate map 23 Temperature control means 25 Carbonization rate-removal rate map 26 Carbonization rate control means

Claims (2)

Carbonization means that carbonizes raw materials into solid fuel,
A carbonization status adjusting means for controlling the carbonization status by the carbonization means,
The carbonization status adjusting means is provided with a control means for outputting an operation command.
The control means is
A carbonization rate derivation means for determining the carbonization rate as the carbonization status of the solid fuel carbonized by the carbonization means is provided, and the carbonization rate is derived.
The control means is
The relationship between the chlorine removal rate and the predetermined carbonization rate is stored as chlorine information, the desired chlorine removal rate is input, and the carbonization status is adjusted so as to be the desired carbonization rate derived with respect to the input chlorine removal rate. A solid fuel production device characterized by outputting operation instructions to means. In the solid fuel manufacturing apparatus according to claim 1 ,
A solid fuel manufacturing apparatus characterized in that the raw material of the solid fuel is biomass.

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