JP4494957B2 - Organic fuel gasification furnace and method for preventing unburned matter generation in gasification furnace - Google Patents

Description

  The present invention relates to an organic fuel gasification furnace that efficiently burns an organic fuel having a relatively low melting point of ash produced by combustion without producing unburned material, and an unburned fuel in the gasification furnace. The present invention relates to an object generation prevention method.

  Various gasification furnaces using fossil fuels such as petroleum and coal, wastes, and combustible substances (organic fuels) such as biomass have been developed. Its typical configuration is shown in FIG. This conventional gasification furnace is a furnace referred to as a spouted-bed type vertical furnace (see, for example, Patent Document 1).

  The gasification furnace has a diameter that gradually decreases from the upper gas generating part 2 having a large diameter of the furnace body 1 to the lower part to form a straight tubular neck 3 having a small diameter, and an ash reservoir 4 is formed at the lower part thereof. It has a structure. A generated gas discharge port 5 is formed in the upper part of the gas generating unit 2, and a burner nozzle 6 for supplying an organic fuel is attached to the lower part of the gas generating unit 2. The neck 3 is formed with an inlet 7 for a gasifying agent.

  In the organic fuel gasification furnace having the above-described configuration, a gasifying agent such as air is injected from the inlet 7 of the neck portion 3 toward the upper portion of the furnace, and the organic fuel is conveyed to the gasifying agent to be burner nozzles. 6 is supplied into the furnace and burned. The organic fuel supplied into the furnace is combusted while being floated by a gasifying agent blown from below and an upward flow caused by combustion heat, and generates a product gas. The ash produced by the combustion falls on the neck portion 3, accumulates in the ash reservoir portion 4 below the neck portion 3, and is collected outside the system.

JP 2001-348578 A

  However, the following problems have been pointed out in the gasifier having the above configuration. That is, organic fuel is used that has been pulverized into particles, but among them, fuel particles having a relatively large particle size are difficult to maintain in a floating state after being supplied into the furnace. In an unburned state, it falls together with the fuel ash of other particles and passes through the neck portion 3 and accumulates in the ash reservoir portion 5. As described above, a part of the organic fuel supplied into the furnace is removed from the combustion region as unburned matter, and the gasification efficiency and the improvement of the generated gas composition are hindered. Furthermore, since the ash in the ash reservoir 4 is still hot, if unburned organic fuel accumulates with such hot ash, combustion may occur all at once, which is dangerous.

  The present invention has been made in view of the above-described conventional problems, and the organic fuel supplied into the furnace does not accumulate in an unburned state and the unburned material in the gasification furnace. The object is to provide an occurrence prevention method.

In order to solve the above-described problems and achieve the object, a gasification furnace for organic fuel according to claim [1] of the present invention includes a gasifying agent inlet below the organic fuel charging position of the furnace body. In a gasification furnace in which the organic fuel mixed with the gasifying agent is burned in a floating state to generate a product gas, unburned organic fuel is generated in a grate structure An unburned matter generation preventing means by a grate to prevent using the grate is provided, and the unburned matter generation preventing means by the grate is rotated to the upper part of the gasifying agent inlet provided at the neck of the furnace body. Or it is comprised from the rotating grate provided rotatably .

The organic fuel gasification furnace according to claim [ 2 ] of the present invention is provided with a gasifying agent injection port below the organic fuel charging position of the furnace body, and mixed with the gasifying agent therein. In a gasification furnace that burns organic fuel to generate product gas, an unburned matter generation preventing means by a grate is provided that prevents unburned matter of the organic fuel from being generated using a grate structure, The unburned matter generation preventing means by the grate is composed of a rotary grate rotatably or rotatably provided at an upper part of a gasifying agent injection port provided at a neck portion of the furnace body, and the rotary grate And a grate opening / closing control means for controlling the rotation or rotation of the rotary grate based on the measured value of the temperature sensor.

The organic fuel gasification furnace according to claim [ 3 ] of the present invention is provided with a gasifying agent injection port below the organic fuel charging position of the furnace main body, and mixed with the gasifying agent therein. In a gasification furnace that burns organic fuel to generate product gas, an unburned matter generation preventing means by a grate is provided that prevents unburned matter of the organic fuel from being generated using a grate structure, The unburned matter generation preventing means by the grate is composed of a rotary grate rotatably or rotatably provided at an upper part of a gasifying agent injection port provided at a neck portion of the furnace body, and the rotary grate Grate open / close control means for controlling the rotation or rotation of the rotary grate based on the difference between the measured values of the two upper and lower temperature sensors. That is provided And butterflies.

The organic fuel gasification furnace according to claim [ 4 ] of the present invention is provided with a gasifying agent injection port below the organic fuel charging position of the furnace body, and mixed with the gasifying agent therein. In a gasification furnace that burns organic fuel to generate product gas, an unburned matter generation preventing means by a grate is provided that prevents unburned matter of the organic fuel from being generated using a grate structure, Means for preventing the generation of unburned matter by the grate is provided at two positions above and below the gasifying agent inlet provided at the neck of the furnace body so that the open / close state can be reversed. It is characterized by comprising two rotating grate.

The organic fuel gasification furnace according to claim [ 5 ] of the present invention is provided with a gasifying agent inlet provided below the organic fuel charging position of the furnace body, and mixed with the gasifying agent therein. In a gasification furnace that burns organic fuel to generate product gas, an unburned matter generation preventing means by a grate is provided that prevents unburned matter of the organic fuel from being generated using a grate structure, The unburned matter prevention means by the grate includes an annular gasifying agent injection header provided at the neck of the furnace body, and a rotary fire provided rotatably or rotatably at the lower part of the gasifying agent header. It is composed of a lattice.

The organic fuel gasification furnace according to claim [ 6 ] of the present invention is provided with a gasifying agent injection port below the organic fuel charging position of the furnace main body, and mixed with the gasifying agent therein. In a gasification furnace that burns organic fuel to generate product gas, an unburned matter generation preventing means by a grate is provided that prevents unburned matter of the organic fuel from being generated using a grate structure, The means for preventing the occurrence of unburned matter by the grate is a hollow disk-shaped rotary grate provided at the neck of the furnace body so as to be rotatable or rotatable. A gas having a structure in which a plurality of jetting nozzles are provided, and the rotating grate supplies gasifying agent from the jetting nozzle into the gasification furnace when gasifying agent is supplied therein. It also serves as an agent inlet.

The organic fuel gasification furnace according to claim [ 7 ] of the present invention is the organic fuel gasification furnace according to claim [ 6 ], wherein a protective cap is loosely provided at the ejection orifice on the upper surface of the rotary grate. It is fitted, and clogging of the ejection orifice and blowing of the gasifying agent onto the upper surface of the rotating grate are realized.

Claim [ 8 ] of the present invention relates to a method for preventing unburned matter generation in an organic fuel gasification furnace. The method for preventing unburned matter generation in an organic fuel gasification furnace includes In a gasification furnace in which a gasifying agent injection port is provided below the charging position and burns the organic fuel mixed therein with the gasifying agent to generate a generated gas, the organic fuel is unburned A method for preventing unburned matter generation in an organic fuel gasification furnace, which comprises a rotating grate that can be opened and closed in the vicinity of the gasifying agent inlet in the furnace body. A rotating grate structure is provided, and the organic fuel unburned material falling toward the furnace bottom is captured by the rotating grate structure, and the captured unburned material is sufficiently burned. The rotating grate is held in a closed state To.

An unburned matter generation preventing method in an organic fuel gasification furnace according to claim [ 9 ] of the present invention is the unburned matter generation preventing method in an organic fuel gasification furnace according to claim [ 8 ]. As the grate structure, a structure in which a rotary grate is rotatably or rotatably provided on an upper portion of a gasifying agent inlet provided in a neck portion of the furnace body is used.

The method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 10 ] of the present invention is the method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 9 ]. A temperature sensor is provided above the grate, and the rotation or rotation of the rotating grate is controlled based on the measured value of the temperature sensor.

The method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 11 ] of the present invention is the method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 9 ]. A temperature sensor is provided at each of two upper and lower portions of the grate, and the rotation or rotation operation of the rotating grate is controlled based on a difference value between measured values of the two upper and lower temperature sensors. .

The method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 12 ] of the present invention is the method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 8 ]. As a grate structure, a structure in which a rotating grate is rotatably or rotatably provided at two positions above and below the gasifying agent inlet provided at the neck of the furnace body so that the respective open / close states are reversed. It is characterized by using.

The method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 13 ] of the present invention is the method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 8 ]. As the grate structure, an annular gasifying agent injection header is provided at the neck of the furnace body, and a rotating grate is provided at the lower part of the gasifying agent header. To do.

The method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 14 ] of the present invention is the method for preventing unburned matter generation in an organic fuel gasification furnace according to claim [ 8 ]. As a grate structure, a rotary grate provided at the neck of the furnace body to be rotatable or rotatable is formed in a hollow disk shape, and a plurality of jetting nozzles communicating with the hollow inside are provided on the upper surface of the rotary grate. A structure that also serves as a gasifying agent injection mechanism that supplies a gasifying agent into the furnace main body from the ejection nozzle by supplying a gasifying agent to the inside is used.

An unburned matter generation preventing method in an organic fuel gasification furnace according to claim [ 15 ] of the present invention is the unburned matter generation preventing method in an organic fuel gasification furnace according to claim [ 14 ]. A protective cap is loosely fitted to the ejection orifice on the upper surface of the grate to realize clogging of the ejection projection and blowing of the gasifying agent onto the upper surface of the grate.

  The organic fuel gasification furnace according to the present invention and the method for preventing the generation of unburned substances in the gasification furnace allow the organic fuel supplied into the furnace to be burned sufficiently without being deposited in an unburned state. Therefore, it is possible to efficiently burn and dispose of various organic fuels and to efficiently generate a product gas suitable for synthesizing organic fuels such as alcohol.

  Embodiments of an organic fuel gasification furnace and a method for preventing unburned matter generation in the gasification furnace according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  FIG. 1 is a diagram showing a first embodiment of an organic fuel gasification furnace according to the present invention. In the figure, the same components as those in FIG. As described above, the gasification furnace according to the present invention is characterized in that the gasifying agent injection port 7 is provided below the organic fuel charging position (burner nozzle 6) of the furnace main body 1, and the gasifying agent is provided therein. In the gasification furnace that generates the product gas by burning the organic fuel mixed with the unburned matter generation by the grate that prevents the unburned matter of the organic fuel from being generated using the grate structure Means are provided.

  In the first embodiment, the unburned material generation preventing means by the grate is provided at the upper part of the gasifying agent injection port 7 provided at the neck 3 of the furnace body 1 so as to be rotatable or rotatable. It is characterized by comprising a rotating grate 10. The rotary grate 10 is a rotary grate rotated 90 ° or inverted 180 ° by a motor 11. As shown in FIG. 2, the rotary grate 10 has a large number of holes 12 that form a lattice. These holes 12 are formed so as to penetrate in a direction perpendicular to the plane direction of the rotary grate 10 and simultaneously serve as a nozzle for the gasifying agent rising from below.

  In the above configuration, the relatively coarse particles of the organic fuel charged into the furnace body 1 cause a drop motion earlier than being burned, and thus fall in an unburned state. However, in this embodiment, the rotating grate 10 is provided at the upper part of the gasifying agent injection port 7 and is normally placed in a closed state, so that the unburned matter 13 falls to the ash reservoir 4. Instead, it is held by the rotating grate 10. Since the position where the rotary grate 10 is attached is in the combustion zone sufficiently in terms of temperature, the unburned matter held in the rotary grate 10 burns after a while and becomes ash. The time from when the unburned matter is captured by the rotary grate 10 until it is completely burned varies depending on the type of organic fuel used, but can be obtained on average, so when that time has passed, As shown in FIG. 3, the motor 11 is driven to rotate the rotary grate 10 by 90 ° or reverse 180 ° to screen the combustion ash in the ash reservoir 4.

  In this embodiment, the entire rotating grate is rotated or reversed. However, it is also possible to provide a looper (rotary blade) for each term of the grate and to open and close these loopers all at once. Effects can be obtained.

  FIG. 4 is a view showing a second embodiment of the gasifier for organic fuel according to the present invention. In the figure, the same components as those in FIG. The feature of the second embodiment is that, in the configuration of the first embodiment, a temperature sensor 20 for detecting the gas temperature above the rotary grate 10 is installed, and the rotary grate 10 is received by receiving the output of the temperature sensor 20. This is because a controller 21 for opening and closing is provided.

  In the configuration of the first embodiment, the time for completing the combustion of the unburned matter on the rotary grate 10 is obtained empirically, and when the time has elapsed, the rotary grate 10 is rotated or rotated by the motor 11. A process is carried out to screen out the ash produced by inversion. On the other hand, in this embodiment, it can be determined from the temperature rise profile of the part that the unburned matter has been sufficiently burned. Therefore, when the temperature range is reached, the rotary grate 10 is rotated or inverted. And completely ashed fuel can be screened out. When the unburned material is sufficiently burned, the temperature of the portion reaches 700 ° C. to 900 ° C., and after the combustion is completed, the temperature is lowered. Therefore, the temperature sensor 20 may be set to output a detection signal when it detects a temperature in this range. Thereby, the unburned matter generation prevention process by the grate structure from the capture of unburned matter through complete combustion to ash sieving can be automated.

  FIG. 5 shows a third embodiment of the present invention. The feature of the third embodiment is that a single temperature sensor is used in the second embodiment, but a total of two temperature sensors 30 and 31 are provided one above the other. The outputs of these temperature sensors 30 and 31 are input to a difference meter 32 and the difference is input to the controller 21. The position of the upper temperature sensor 30 is located in a higher temperature region than the position of the temperature sensor 20 installed in the second embodiment. That is, it is a position where there is a high temperature region existing on the so-called combustion region, and the temperature here reaches a temperature higher than 700 ° C. to 900 ° C. when the unburned material is completely burned. On the other hand, the position of the lower temperature sensor 31 is a position where a deposited layer exists on the rotary grate 10. Since this deposit is not burned sufficiently, it is in a temperature range lower than the temperature range of 700 ° C. to 900 ° C. during the complete combustion. The temperature range reaches 300 ° C. to 500 ° C. as the deposition layer burns. FIG. 6 shows the relationship in a graph. The temperature range detected by the temperature sensor 31 indicated by T1 is 300 ° to less than 500 °, and the time for reaching the peak is earlier than the time for the temperature rising profile detected by the temperature sensor 30 indicated by T2 to reach the peak. As a result of various experiments, it has been confirmed that the time when the difference between T2 and T1 becomes 500 ° C. to 700 ° C. can be judged as the time when the combustion of the deposit is completed. The temperature T1 detected by the temperature sensor 31 indicates the condition in which the combustion layer on the grate 10 has shifted to the ash layer, that is, indicates the completion of combustion, and the differential temperature (T2-T1) is the temperature of the combustion layer on the grate 10 This indicates that the bed height has reached the installation level of the temperature sensor 31.

  The deposited layer on the rotary grate 10 is roughly divided into two layers as shown in FIG. 7 from the combustion state. The layer immediately above the rotary grate 10 is a layer that is moving from the combustion layer to the ash layer, and on that is a combustion layer that is burning, and even a gasification layer that is gasified with combustion. is there.

  As described above, there is a temperature difference between the burning deposition layer on the rotary grate 10 and the combustion region thereabove, and the peak position of the temperature rising profile is shifted with time. By detecting this, it is possible to more accurately detect the time when the combustion of the unburned material is completed, rotate the grate 10 at an appropriate time, and remove the combustion ash. As a result, the unburned matter falling into the ash reservoir 4 can be greatly reduced.

  FIG. 8 is a diagram showing a fourth embodiment of the organic fuel gasification furnace according to the present invention. In the figure, the same components as those in FIG. The feature of the fourth embodiment resides in that another rotary grate 40 is provided above the rotary grate 10 in the configuration of the second embodiment shown in FIG. The rotating grate 40 is rotated or inverted by a motor 41. Both the rotary grate 10 and the rotary grate 40 are controlled to be opened and closed by the controller 21, and as shown in FIG. 9, the upper rotary grate 40 is normally placed in an open state, and the lower rotary grate 40 10 is placed in the closed state.

  In the above configuration, the upper rotary grate 40 is normally in the open state, and the lower rotary grate 10 is in the closed state. When the indicated value of the temperature sensor 20 exceeds a certain temperature (700 to 900 ° C.), the upper rotary grate 40 is closed, and the falling particles to the lower rotary grate 10 are once blocked. Thereby, the deposited layer on the rotary grate 10 is completely burned. Subsequently, when the indicated value of the temperature sensor 20 reaches a constant temperature (300 to 500 ° C.), it is determined that the combustion is completed, the lower rotary grate 10 is opened, and the combustion ash is dropped into the ash reservoir 4. Thereafter, the lower rotary grate 10 is closed again, and the upper rotary grate 40 is opened. With such a configuration and operation method, it is possible to improve the combustion efficiency of the organic fuel, particularly its coarse particles.

  FIG. 10 is a view showing a fifth embodiment of the organic fuel gasification furnace according to the present invention. In the figure, the same components as those shown in FIG. The feature of the fifth embodiment is that in the configuration of the second embodiment shown in FIG. 4, instead of the gasifying agent injection port 7, an annular gasifying agent as shown in FIG. The injection header 50 is provided. The annular header 50 is formed with a plurality (four in the drawing) of nozzles 50a toward the center. Accordingly, the gasifying agent is sufficiently blown into the deposited layer containing the unburned material 13 on the rotary grate 10.

  When the gasifying agent is supplied from under the rotary grate 10, the unburned material 13 on the rotary grate 10 falls into the ash reservoir 4 with the opening / closing operation of the rotary grate 10. Since the gasifying agent is rich in an atmosphere (in some cases, an oxidizing atmosphere), the unburned portion that has fallen and the gasifying agent may react at a stretch and the gasification state may become unstable. Further, due to the structure of the rotary grate, it is necessary to provide a certain gap in the sliding portion of the grate body, and the presence of the gap limits the differential pressure of the gasifying agent. That is, the gasifying agent cannot be supplied uniformly.

  On the other hand, in the configuration of the fifth embodiment, the gasifying agent is prevented from diffusing into the ash reservoir 4 by disposing the gasifying agent charging position immediately above the rotary grate 10, Since the gasification state is stabilized and the differential pressure of the gasifying agent can be sufficiently secured, the combustibility can be improved regardless of the layer height of the unburned matter 13 on the rotary grate 10.

  FIG. 12 is a diagram showing a sixth embodiment of the organic fuel gasification furnace according to the present invention. The feature of the sixth embodiment resides in the internal structure of a rotary grate 60 provided on the neck 3 of the furnace body 1 so as to be rotatable or rotatable. The rotary grate 60 is formed in a hollow disk shape as shown in FIGS. 13 and 14. The upper surface of the rotary grate 60 is provided with a plurality of jetting nozzles 61 communicating with the hollow inside thereof, and a gasifying agent is supplied to the inside, so that the gas jetting nozzles 61 are fed into the furnace body 1. A gasifying agent is supplied. That is, the rotary grate 60 has a structure that also serves as a gasifying agent injection mechanism. The rotating grate 60 is opened and closed by rotating or rotating its rotating shaft 62 by a motor 63. The rotating shaft 62 also has a hollow structure, and the gasifying agent is supplied through the rotating shaft 62.

  A protective cap 61 a is loosely fitted to each ejection protrusion 61 on the upper surface of the rotary grate 60, and clogging of each ejection protrusion 61 and blowing of the gasifying agent onto the upper surface of the rotary grate 60. It has been realized. With this structure, even if the unburned matter 13 is deposited on the rotary grate 60 at a high level, the ejection orifice 61 is not clogged, and the gasifying agent can be blown evenly and sufficiently into the deposited layer. Thereby, the combustibility of the deposited layer on the rotary grate 60 can be improved.

  As described above, the organic fuel gasification furnace and the method for preventing unburned matter generation in the gasification furnace according to the present invention have a large particle size among organic fuels supplied into the gasification furnace and fall early. As a result, it is possible to effectively capture and burn unburnt substances, so that a large amount of various organic fuels can be used to ash efficiently and generate useful product gas. Can easily be realized.

It is a schematic block diagram which shows the 1st Example of the gasification furnace of the organic fuel concerning this invention. It is a top view of the rotary grate used for the gasification furnace shown in FIG. It is a figure which shows the opening / closing operation | movement of the rotary grate used for the gasification furnace shown in FIG. It is a schematic block diagram which shows the 2nd Example of the gasification furnace of the organic fuel concerning this invention. It is a schematic block diagram which shows the 3rd Example of the gasification furnace of the organic fuel concerning this invention. It is the figure which showed the measured temperature profile by the two temperature sensors used for the gasification furnace shown in FIG. 5 with the graph. It is a figure which shows the lamination composition of the deposition layer on the rotary grate used for the gasification furnace shown in FIG. It is a schematic block diagram which shows the 4th Example of the gasification furnace of the organic fuel concerning this invention. It is a figure which shows the opening / closing operation | movement of the two rotary grate used for the gasification furnace shown in FIG. It is a schematic block diagram which shows the 5th Example of the gasification furnace of the organic fuel concerning this invention. It is a figure which shows the planar shape of the cyclic | annular gasification agent header used for the gasification furnace shown in FIG. It is a schematic block diagram which shows the 6th Example of the gasification furnace of the organic fuel concerning this invention. It is principal part sectional drawing of the rotary grate used for the gasification furnace shown in FIG. It is a side block diagram of the rotary grate used for the gasification furnace shown in FIG. It is a schematic block diagram of the conventional gasifier.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Furnace body 2 Gas generation part 3 Neck part 4 Ash accumulation part 5 Generated gas discharge port 6 Burner nozzle 7 Gasifying agent injection port 10,40 Rotary grate 11, 41, 63 Motor 12 Hole 13 Unburned material 20, 30, 31 Temperature sensor 21 Controller for opening and closing the rotating grate 32 Difference meter 50 Gasifying agent injection header 50a Nozzle 50
60 Rotating Grate with Hollow Structure 61 Ejection Protrusion 61a Protection Cap 62 Rotating Shaft

Claims (15)

A gasification furnace in which a gasifying agent inlet is provided below an organic fuel charging position in a furnace body, and the organic fuel mixed with the gasifying agent is burned in a floating state to generate a generated gas. In
An unburned matter generation preventing means by a grate for preventing unburned matter of the organic fuel from being generated using a grate structure is provided ,
The unburned matter generation preventing means by the grate is constituted by a rotating grate provided rotatably or rotatable at an upper part of a gasifying agent inlet provided at a neck portion of the furnace body. An organic fuel gasifier. In a gasification furnace in which a gasifying agent injection port is provided below the charging position of the organic fuel in the main body of the furnace, and the organic fuel mixed with the gasifying agent is burned to generate a generated gas.
An unburned matter generation preventing means by a grate for preventing unburned matter of the organic fuel from being generated using a grate structure is provided,
The unburned matter generation preventing means by the grate is composed of a rotating grate provided rotatably or freely at the upper part of the gasifying agent inlet provided at the neck of the furnace body,
A temperature sensor is provided above the rotary grate, and a grate opening / closing control means for controlling the rotation or rotation of the rotary grate based on a measurement value of the temperature sensor is provided. An organic fuel gasifier. In a gasification furnace in which a gasifying agent injection port is provided below the charging position of the organic fuel in the main body of the furnace, and the organic fuel mixed with the gasifying agent is burned to generate a generated gas.
An unburned matter generation preventing means by a grate for preventing unburned matter of the organic fuel from being generated using a grate structure is provided,
The unburned matter generation preventing means by the grate is composed of a rotating grate provided rotatably or freely at the upper part of the gasifying agent inlet provided at the neck of the furnace body,
Temperature sensors are provided at two locations above and below the rotating grate, respectively, and a fire that controls the rotation or rotation of the rotating grate based on the difference between the measured values of the two upper and lower temperature sensors. A gasification furnace for organic fuel, characterized in that a grid open / close control means is provided. In a gasification furnace in which a gasifying agent injection port is provided below the charging position of the organic fuel in the main body of the furnace, and the organic fuel mixed with the gasifying agent is burned to generate a generated gas.
An unburned matter generation preventing means by a grate for preventing unburned matter of the organic fuel from being generated using a grate structure is provided,
Means for preventing the generation of unburned matter by the grate is provided at two positions above and below the gasifying agent inlet provided at the neck of the furnace body so that the open / close state can be reversed. An organic fuel gasification furnace characterized by comprising two rotating grate. In a gasification furnace in which a gasifying agent injection port is provided below the charging position of the organic fuel in the main body of the furnace, and the organic fuel mixed with the gasifying agent is burned to generate a generated gas.
An unburned matter generation preventing means by a grate for preventing unburned matter of the organic fuel from being generated using a grate structure is provided,
The unburned matter prevention means by the grate includes an annular gasifying agent injection header provided at the neck of the furnace body, and a rotary fire provided rotatably or rotatably at the lower part of the gasifying agent header. An organic fuel gasification furnace comprising a lattice. In a gasification furnace in which a gasifying agent injection port is provided below the charging position of the organic fuel in the main body of the furnace, and the organic fuel mixed with the gasifying agent is burned to generate a generated gas.
An unburned matter generation preventing means by a grate for preventing unburned matter of the organic fuel from being generated using a grate structure is provided,
The means for preventing the occurrence of unburned matter by the grate is a hollow disk-shaped rotary grate provided at the neck of the furnace body so as to be rotatable or rotatable. A gas having a structure in which a plurality of jetting nozzles are provided, and the rotating grate supplies gasifying agent from the jetting nozzle into the gasification furnace when gasifying agent is supplied therein. A gasifier for organic fuel, which also serves as an agent inlet. A protective cap is loosely fitted to the ejection protrusion on the upper surface of the rotating grate, and the clogging of the ejection protrusion and the spraying of the gasifying agent onto the upper surface of the grate are realized. An organic fuel gasifier according to claim 6 . In the gasification furnace in which a gasifying agent injection port is provided below the charging position of the organic fuel in the furnace body, and the organic fuel mixed with the gasifying agent is burned to generate a generated gas. An organic fuel gasification furnace that prevents organic fuel from accumulating as unburned material,
Provided in the vicinity of the gasifying agent inlet in the furnace body a rotary grate structure composed of a freely openable / closable rotary grate, and the organic fuel unburned material falling toward the furnace bottom by the rotary grate structure The unburned matter in the gasifier of the organic fuel is characterized in that the trapped unburned matter is held in a closed state until the unburned matter is sufficiently burned. Occurrence prevention method. 9. The structure according to claim 8 , wherein the rotating grate structure is a structure in which a rotating grate is rotatably or rotatably provided on an upper portion of a gasifying agent inlet provided in a neck portion of the furnace main body. For preventing unburned matter in gasification furnaces for organic fuels. 10. The organic fuel according to claim 9 , wherein a temperature sensor is provided on an upper portion of the rotating grate, and the rotation or rotating operation of the rotating grate is controlled based on a measurement value of the temperature sensor. A method for preventing the generation of unburned substances in gasifiers. Temperature sensors are provided at two locations above and below the rotating grate, respectively, and the rotating or rotating operation of the rotating grate is controlled based on the difference between the measured values of the two upper and lower temperature sensors. The method for preventing unburned matter from being generated in an organic fuel gasifier according to claim 9 . As the rotary grate structure, rotary grate is provided at two locations above and below the gasifying agent inlet provided at the neck of the furnace body so that the open / close state of each is reversed or rotatable. The method for preventing unburned matter from being generated in an organic fuel gasifier according to claim 8 , wherein: As the rotary grate structure, an annular gasifying agent injection header is provided at the neck of the furnace main body, and a structure in which a rotary grate is rotatably or freely provided at the lower part of the gasifying agent header is used. The method for preventing unburned matter from being generated in an organic fuel gasifier according to claim 8 . As the rotary grate structure, a rotary grate provided at the neck of the furnace body so as to be rotatable or rotatable is formed in a hollow disk shape, and a plurality of jetting nozzles communicating with the inside hollow on the upper surface of the rotary grate the provided, by supplying a gasifying agent therein to claim 8, characterized by using a structure which also serves as a gasifying agent injection mechanism for supplying gasifying agent into the furnace body from the jet突口The method for preventing the occurrence of unburned matter in a gasification furnace for organic fuels as described. A protective cap is loosely fitted to the ejection protrusion on the upper surface of the rotating grate, and the clogging of the ejection protrusion and the spraying of the gasifying agent onto the upper surface of the grate are realized. 14. A method for preventing the occurrence of unburned matter in a gasification furnace for organic fuels according to 14 .

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