JP4595033B1 - Double kiln for bamboo charcoal production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double kiln for producing bamboo charcoal, in which the bamboo material is uniformly baked to obtain uniform bamboo charcoal, and the charcoal baking operation is easy.
SOLUTION: A double kiln 1 for producing bamboo charcoal has a horizontal metal kiln body 2, a lid 3 with a combustion chamber attached to the front part of the kiln body 2 so as to be openable and closable, and a rear lower part of the kiln body 2. The chimney 5 provided in a connected manner, the iron floor raising grid 6 provided at the bottom inside the kiln body 2, and the kiln body 2 are put into and out of the kiln body 2, and when the bamboo material is baked, the bamboo material is housed inside. A plurality of iron cans 7 stacked on the grid base 6 and heated by the radiant heat and conduction heat of the combustion gas and high-temperature gas flowing inside the kiln body 2 are provided.
[Selection] Figure 1

Description

  The invention of the present application relates to a double kiln for producing bamboo charcoal, and more particularly to a double kiln for producing bamboo charcoal that is excellent in the uniformity and homogeneity of bamboo charcoal obtained by baking bamboo material and that is easy to perform charcoal burning.

  Conventionally, bamboo charcoal is produced by using a non-ferrous metal kiln or iron kiln made of bricks, concrete blocks, etc., and containing a desired amount of bamboo material cut into an appropriate size as it is inside. It is common to produce bamboo charcoal by baking at a temperature for a predetermined time. However, in such a kiln, the combustion gas and high-temperature gas do not reach the inside and every corner of the bamboo aggregate contained in the kiln sufficiently, and the bamboo does not bake up uniformly and a homogeneous product is produced. There was a drawback that it could not be obtained. In addition, the work requires skill, and there are problems such as the trouble of putting in and out of the kiln.

JP 2001-040361 A JP 2007-277395 A

  The invention of the present application solves the above-mentioned problems of conventional bamboo charcoal kilns, and the combustion gas and high-temperature gas are sufficiently distributed to the inside and every corner of the bamboo material collection housed in the kiln. It is an object of the present invention to provide a double kiln for producing bamboo charcoal, in which the bamboo material is uniformly baked to obtain a uniform bamboo charcoal, and the charcoal baking operation is easy.

The above-described problems can be solved by the following inventions described in the claims of the present application.
That is, according to the invention described in claim 1, the double kiln used for baking bamboo material to produce bamboo charcoal can be freely opened and closed at a horizontal metal kiln body and the front of the kiln body. A lid with a combustion chamber that is attached to the chimney, a chimney that is connected to the lower rear of the kiln main body, an iron floor raising grid that is provided at the bottom of the kiln main body, and a bamboo material that is taken in and out of the kiln main body. When baking, a plurality of iron cans that are stacked on the raised grid stand in a state in which the bamboo is housed therein and are heated by radiant heat and conduction heat of combustion gas and high-temperature gas flowing inside the kiln body And a double kiln for producing bamboo charcoal.

  Since the invention described in claim 1 is configured as described above, the bamboo material is housed separately in each of the plurality of cans, and is fired separately for each can. Combustion gas and high-temperature gas flowing in the interior are sewn between the stacked cans and between adjacent cans, and the innermost and corners of the stacked stacks of cans. In the meantime, each can is uniformly heated by the radiant heat and conduction heat, and the bamboo material in each can is uniformly heated and burned to be carbonized. Thereby, uniform and homogeneous bamboo charcoal can be obtained.

  Moreover, since the storage of the bamboo material into the kiln body and the removal of the finished bamboo charcoal can be performed in units of cans, the operation is easy and the work efficiency can be improved.

The invention described in claim 2 is a double kiln for manufacturing bamboo charcoal according to claim 1,
The lid with the combustion chamber is fixed to an inner side surface thereof with an edge of an iron combustion chamber wall defining the combustion chamber, and an upper edge side of the combustion chamber wall is cut out to a predetermined size to form a combustion gas outlet. An iron mesh grid is provided at the bottom of the combustion chamber, and a fuel inlet is provided at a relatively upper portion thereof so as to face the combustion chamber, and at a relatively lower portion thereof in a space below the mesh grid. It is characterized by an ash outlet opening.

  Since the invention described in claim 2 is configured as described above, the combustion chamber can be easily manufactured, its repair is easy, and the structure of the kiln as a whole is simplified. be able to.

  Further, the combustion gas and the high-temperature gas that have come out of the combustion chamber are directed from the upper front to the lower rear inside the main body of the kiln, and are sewn around the piles of stacked cans and between adjacent cans. It flows all the way to the deepest part and every corner of the mountain, and in the meantime, these cans are sufficiently heated with its radiant heat and conduction heat, then through the floor-raised grid stand, from the lower rear part inside the kiln body It flows into the chimney and is exhausted by the chimney. Therefore, there is little heat transfer loss and it is very excellent in thermal efficiency.

  Furthermore, the invention described in claim 3 is the double kiln for manufacturing bamboo charcoal according to claim 1 or 2, wherein the can is a rectangular or round vertical can, and bamboo material is put on one end wall surface. -An opening for taking out bamboo charcoal is provided, and a plurality of ventilation holes are provided at least on the other end wall surface.

  Since the invention described in claim 3 is configured as described above, some of the combustion gas and high-temperature gas flow through the inside of each can, and the bamboo material contained therein is more uniform. It is carbonized by heating and burning. Thereby, a more homogeneous bamboo charcoal can be obtained.

  Moreover, the invention described in Claims 4 and 5 is the bamboo in which the bamboo material is cut into a size that can be accommodated in the can in the double kiln for manufacturing bamboo charcoal according to any one of Claims 1 to 3. It is characterized by the fact that it is made of wood splitting material or bamboo chip material.

  Since the invention described in claims 4 and 5 is configured as described above, the size of the bamboo material is appropriate, the combustion and carbonization are easy, and the size of the obtained bamboo charcoal is also appropriate. And post-processing is easy. As a result, the working efficiency can be further improved.

  According to the invention of the present application, the bamboo material is housed separately in each of the plurality of cans, and is burned separately for each can. Therefore, the combustion gas and high-temperature gas flowing inside the kiln body are stacked. Sewed between the surrounding cans and between adjacent cans, and flowed all the way to the innermost part and corners of the piles of cans (stacks of cans). Each can is uniformly heated with heat, and the bamboo material in each can is uniformly heated and burned to be carbonized. Thereby, uniform and homogeneous bamboo charcoal can be obtained.

Moreover, since the storage of the bamboo material into the kiln body and the removal of the finished bamboo charcoal can be performed in units of cans, the operation is easy and the work efficiency can be improved.
Moreover, the size of the bamboo material is appropriate, the combustion and carbonization are easy, the size of the obtained bamboo charcoal is also appropriate, and the post-treatment is easy. As a result, the working efficiency can be further improved.

Further, the combustion chamber can be easily manufactured, and its repair is easy, and the structure of the entire kiln can be simplified.
In addition, various effects as described above can be achieved.

It is a longitudinal cross-sectional view of the double kiln for bamboo charcoal manufacture of one Example (Example 1) of invention of this application. It is the II-II sectional view taken on the line of FIG. It is a perspective view of the can in which the bamboo material is accommodated, (a) is a perspective view seen from one end surface side provided with an opening for taking in bamboo material and taking out bamboo charcoal, together with the accommodation state of the bamboo material (split material) (B) is a perspective view seen from the other end surface side provided with a plurality of vent holes. It is a longitudinal cross-sectional view of the double kiln for bamboo charcoal manufacture of the other Example (Example 2) of the invention of this application. FIG. 5 is a cross-sectional view taken along line VV in FIG. 4. It is a perspective view of the can in which the bamboo material is accommodated, (a) is a perspective view seen from one end surface side provided with an opening for taking in bamboo material and taking out bamboo charcoal, together with the accommodation state of the bamboo material (chip material) (B) is a perspective view seen from the other end surface side provided with a plurality of vent holes. It is a figure similar to FIG. 2 which shows the modification of a can. 1 is a front view of a double kiln for manufacturing bamboo charcoal of Example 1. FIG. FIG. 2 is a cross-sectional view taken along line IX-IX in FIG. 1. It is explanatory drawing which shows the state by which the fuel inlet provided in the cover with a combustion chamber with which the double kiln for bamboo charcoal manufacture of Example 1 is provided was opened.

Example 1
Next, an embodiment (Embodiment 1) of the present invention will be described.
In the following, the side where the lid is attached to the kiln body is the front part of the double kiln, and the side where the chimney is connected to the kiln body is the rear part of the double kiln.

  As shown in FIG. 1, the double kiln 1 for producing bamboo charcoal according to the first embodiment is generally opened and closed at the front of the kiln body 2 with a bottomed cylindrical body-shaped metal kiln body 2. A lid 3 with a combustion chamber that is freely attached, a chimney 5 that is connected to the lower part of the rear of the kiln body 2, an iron floor raising grid 6 that is provided horizontally at the bottom of the kiln body 2, and the kiln When the bamboo material is baked in and out of the main body 2, the bamboo material is stacked on the floor raising grid stand 6 in a state in which the bamboo material is accommodated therein, and the radiant heat of the combustion gas and the high-temperature gas flowing inside the kiln main body 2. It comprises a plurality of iron cans 7 heated by conduction heat.

  The lid 3 is attached to the front end face of the kiln body 2 by a hinge 20 (see FIG. 8) so as to be freely opened and closed, and is formed to have a size slightly smaller than the kiln body 2 diameter. On the inner side surface, the opening side edge of the bottomed cylindrical iron combustion chamber wall 8 defining the combustion chamber 4 is fixed by welding, and the upper edge side of the combustion chamber wall 8 is fixed. Is cut out in a circular arc when viewed from the front, and a combustion gas outlet 9 is formed there. An iron mesh grid 10 is disposed horizontally at the bottom of the combustion chamber 4. A fuel inlet 11 (see FIGS. 1, 9, and 10) is provided at a relatively upper portion of the lid 3 so as to face the combustion chamber 4, and a mesh lattice 10 is disposed at a relatively lower portion of the lid 3. An ash outlet 13 (see FIGS. 1 and 9) is provided so as to face the lower space. The fuel input port 11 and the ash take-out port 13 are respectively provided with lids 12 and 14 for closing them openably and closably.

  The can 7 may be an empty can such as an oil can. As shown in FIG. 3, the can 7 is composed of a rectangular vertically long can, and an opening 15 for taking in bamboo material and taking out bamboo charcoal is formed on one wall surface in the longitudinal direction. A plurality of vent holes 16 are formed on the other wall surface in the longitudinal direction. The required number of the vent holes 16 may be provided not only on the other end wall surface but also on the peripheral wall surface.

  The bamboo material accommodated in the can 7 is composed of a bamboo split material 17 cut into a size that can be accommodated in the can 7, particularly a size that fits in a can dimension in a direction perpendicular to the length direction of the can 7. Yes. A large number of bamboo splits 17 thus obtained are accommodated in the can 7 through the opening 15. In this way, a plurality of the cans 7 in which the bamboo splitting material 17 is fully accommodated are placed horizontally on the raised grid base 6 in the kiln body 2 as shown in FIGS. 1 and 2. Stacked. Note that this stacking method is not necessarily horizontal, but may be vertical.

  The can 7 is not necessarily limited to a rectangular vertical can, and may be a round vertical can. In this case, the bamboo material cut into a length of about 2/3 to 4/5 of the inner diameter of the can 7 is used as the bamboo material to be accommodated in the can 7, and this is first placed horizontally. The cans are arranged vertically in the cans 7 and then horizontally in the generated gaps, and this operation is repeated a plurality of times in the length direction of the cans so as to be packed without any gaps. In this way, a plurality of the cans 7 in which the bamboo splitting material 17 is fully accommodated are stacked horizontally on the floor raising grid base 6 in the kiln body 2 as shown in FIG.

Next, the operation of the double kiln 1 for manufacturing bamboo charcoal of the first embodiment configured as described above will be described.
First, the lid 3 is opened, and a plurality of cans 7 containing bamboo materials are placed horizontally on the floor raising lattice base 6 in the kiln body 2 and stacked. Next, the lid 3 is closed, and fuel such as old building materials and bamboo is introduced from the fuel inlet 11 onto the mesh lattice 10 in the combustion chamber 4. Next, when this fuel is ignited, the combustion gas is blown up from the combustion gas outlet 9 to the front upper part inside the kiln body 2, reversed from there and directed toward the rear lower part inside the kiln body 2, and stacked with the hot gas. The circumference of the piles of the plurality of cans 7 (stacked piles of cans 7) and between the adjacent cans 7 are sewed to flow all the way to the innermost part and corners of the cans 7, These cans 7 are sufficiently heated by the radiant heat and conduction heat. Thereafter, the combustion gas and the high-temperature gas pass through the floor raising grid base 7 and flow into the chimney 5 from the outlet 19 below the rear part of the kiln body 2. The chimney 7 exhausts the air.

  Of the plurality of cans 7 stacked at the closest position to the combustion chamber 4, the cans 7 located in the middle to lower stages are not easily heated by the combustion gas or the high-temperature gas, but the vertical wall portion of the combustion chamber wall 8. Since the radiant heat radiated from the bottomed cylindrical body-like combustion chamber wall 8 is received, these cans 7 can also receive sufficient heating.

The double kiln for manufacturing bamboo charcoal of the first embodiment is configured as described above and operates as described above, so that the following effects can be achieved.
The bamboo material (bamboo split material 17) is housed separately in each of the plurality of cans 7, and is fired separately for each can 7, so that the combustion gas and hot gas flowing inside the kiln body 2 are burned. Sews around the plurality of stacked cans 7 and between adjacent cans 7 and flows all the way to the innermost part and corners of the piles of stacked multiple cans 7 (stack of cans 7). In the meantime, each can 7 is uniformly heated by the radiant heat and conduction heat, and the bamboo material in each can 7 is uniformly heated and burned to be carbonized, so that uniform and homogeneous bamboo charcoal can be obtained. it can.

Moreover, since the storage of the bamboo material in the kiln body 2 and the removal of the finished bamboo charcoal can be performed in units of each can 7, the operation is easy and the work efficiency can be improved.
Moreover, since the bamboo material is composed of the bamboo split material 17 cut into a size that can be accommodated in the can 7, the size of the bamboo material is appropriate, combustion and carbonization are easy, and the size of the obtained bamboo charcoal is uniform. And post-processing is easy. As a result, the working efficiency can be further improved.

  Further, the combustion chamber 4 can be easily manufactured, and by opening the lid 3, the repair can be easily performed, and the structure of the kiln as a whole can be simplified.

  In addition, the combustion gas and the high-temperature gas that have come out of the combustion chamber 4 are directed from the front upper portion to the rear lower portion inside the kiln body 2, and around the piles of the stacked cans 7 and between the adjacent cans 7. Sew and flow all the way to the deepest part and every corner of the can 7, during which the can 7 is sufficiently heated by the radiant heat and conduction heat, Since it flows into the chimney 5 from the rear lower part of the kiln body 2, there is little heat transfer loss and it is very excellent in thermal efficiency.

  In addition, some of the combustion gas and high-temperature gas flow inside each can 7 and the bamboo material contained therein is heated and burned more uniformly and carbonized to obtain a more uniform bamboo charcoal. Can do.

  In addition, since the structure is simple, the work is easy, the thermal efficiency is excellent, and a uniform and homogeneous bamboo charcoal can be obtained, anyone can use the kiln without much skill. Driving operation can be performed.

(Example 2)
Next, another embodiment (embodiment 2) of the present invention will be described.
FIG. 4 shows a double kiln 1 for producing bamboo charcoal of Example 2 in a longitudinal sectional view. Compared with the double kiln 1 for manufacturing bamboo charcoal 1 of Example 1, the double kiln 1 for manufacturing bamboo charcoal differs in that the bamboo material used as the material for bamboo charcoal is made of bamboo chip material 18. ing. This chip material 18 is made of a small piece of bamboo cut to a size of several centimeters to 10 centimeters.

  When the bamboo chip material 18 is used as the bamboo material, as shown in FIG. 6, the bamboo chip material 18 is loosely packed in the can 7 to fill it up, and then the bamboo chip material 18 is filled up in this way. As shown in FIGS. 4 and 5, a plurality of accommodated cans 7 are stacked vertically or diagonally on the floor raising grid 6 in the kiln body 2. If stacked in this way, the chip material 18 in the can 7 will not spill out.

  The double kiln 1 for producing bamboo charcoal of the second embodiment is different from the double kiln 1 for producing bamboo charcoal 1 of the first embodiment in the above points, but there are no other differences, and the operation thereof is also a combustion gas. And the flow pattern of the high-temperature gas is slightly different, and there is no difference from the double kiln 1 for manufacturing bamboo charcoal of Example 1 except that the heating pattern of the can 7 is slightly different. Omitted.

  Since the double kiln 1 for manufacturing bamboo charcoal of the second embodiment is configured as described above and operates as described above, the same effects as the double kiln 1 for manufacturing bamboo charcoal 1 of the first embodiment can be obtained. it can.

  The invention of the present application is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention.

DESCRIPTION OF SYMBOLS 1 ... Bamboo charcoal double kiln, 2 ... Kiln body, 3 ... Cover with combustion chamber, 4 ... Combustion chamber, 5 ... Chimney, 6 ... Floor raising lattice stand, 7 ... Can, 8 ... Combustion chamber wall, 9 ... Combustion gas Outlet, 10 ... Mesh lattice, 11 ... Fuel inlet, 12 ... Lid, 13 ... Ash outlet, 14 ... Lid, 15 ... Opening, 16 ... Vent, 17 ... Bamboo split material, 18 ... Bamboo chip material, 19 ... Outlet, 20 ... Hinge.

Claims (5)

A double kiln used to make bamboo charcoal by burning bamboo
Horizontal metal kiln body,
A lid with a combustion chamber attached to the front of the kiln body so as to be freely opened and closed;
A chimney provided connected to the lower rear of the kiln body;
An iron floor raising lattice stand provided at the bottom inside the kiln body;
When the bamboo material is baked in and out of the kiln body, the bamboo material is stacked on the floor-raising grid with the bamboo material housed inside, and the radiant heat and conduction of combustion gas and hot gas flowing inside the kiln body A plurality of iron cans heated by heat,
A double kiln for producing bamboo charcoal characterized by comprising: The lid with the combustion chamber is
The inner edge of the iron combustion chamber wall defining the combustion chamber is fixed to the inner surface, and the upper edge side of the combustion chamber wall is cut out to a predetermined size to form a combustion gas outlet. An iron net lattice is provided at the bottom,
A fuel inlet is provided at a relatively upper portion so as to face the combustion chamber,
2. The double kiln for producing bamboo charcoal according to claim 1, wherein an ash outlet is provided at a relatively lower portion so as to face a lower space of the mesh lattice.   The can is a rectangular or round vertically long can, and one end wall surface is provided with an opening for charging bamboo material and taking out bamboo charcoal, and at least the other end wall surface is provided with a plurality of vent holes. The double kiln for bamboo charcoal manufacture according to claim 1 or 2.   4. The double kiln for producing bamboo charcoal according to claim 1, wherein the bamboo material is made of a split material of bamboo cut to a size that can be accommodated in the can.   4. The double kiln for producing bamboo charcoal according to claim 1, wherein the bamboo material is made of bamboo chip material.

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