JP3103809U - Improved equipment for time difference charcoal kiln - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an improved apparatus for a staggered coal making type kiln, which can directly see the degree of carbonization of wood burnt in a charcoal kiln and can grasp timing of opening / closing control of a smoke control chimney.
SOLUTION: In a time difference coal making type kiln 1 in which a smoke control chimney 5 provided at a plurality of regular intervals in a length direction of a lower portion of an outer side wall is sequentially closed with a time difference therebetween to produce coal, an outer wall of the charcoal kiln 1 is provided. The bottom of the smoke control chimney 5 provided at a plurality of regular intervals in the length direction of the lower part is formed in an inverted T-shaped cylinder, and an opening 5a at one end thereof is connected to an intake and exhaust port 6 provided on the outer wall of the charcoal kiln 1. Inspection lid 7 is provided at opening 5b at the other end. Further, an open / close valve 19 is provided in the middle of the inverted T-shaped cylinder so that the smoke entering each of the smoke control chimneys 5 can be discharged to the chimney, and the upper end is connected to the chimney via a discharge pipe 23. Then, by opening the inspection lid 7 and directly observing the carbonization state of the wood in the kiln, the timing for opening and closing the on-off valve 19 of the smoke control chimney 5 can be reliably grasped.
[Selection] Figure 2

Description

  The present invention relates to an improved apparatus for a charcoal kiln of the time difference type.

First, a charcoal kiln (Patent Literature 1) is proposed for carbonizing long wood such as building waste wood and thinned wood used for pillars and beams, etc., into a kiln with the same length without cutting it shortly. Have been.
The charcoal kiln has a difference in carbonization because it is longer from the mouth in front of the kiln to the back, so that it is possible to make charcoal with a time lag to increase the carbonization efficiency.
The charcoal kiln has a plurality of smoke control chimneys with open / close valves on the lower side wall at regular intervals, and the shutoff valves are closed in order from the front of the kiln to the back with a time lag. Is
The timing of closing the shut-off valve was determined based on the color of the flame spouting from the smoke control chimney and the state of spouting.However, the judgment of the color of the flame and the confirmation of the transition from the spouting state to the air suction state were made. was difficult.
Furthermore, the smoke discharged without treatment from the smoke control chimney contains a large amount of soot, and there is also a risk of soot pollution.

In addition, since the wood vinegar liquid sampling device used in this charcoal kiln is a large kiln that can handle whole building wood waste and thinned wood, the amount of smoke emitted is extremely large. There is a problem that the minute amount accumulates in a short period of time, and the function is reduced and the device becomes unusable.
Furthermore, a conventional smoke exhaust treatment device using a filter or an attachment plate cannot process a large amount of soot and scatters dust around, and there is no device suitable for this charcoal kiln.
JP 2001-181646 A

  The present invention has been made in view of the above-mentioned circumstances, and reliably grasps the timing of opening / closing control of a smoke control chimney by directly seeing the degree of carbonization of wood that has been burned in a conventional time-lag coal-fired charcoal kiln. An improved type equipped with a wood vinegar liquid sampling device and a smoke exhaust treatment device capable of preventing the emission of smoke from the smoke control chimney and simultaneously coping with the large amount of smoke emitted This is to provide a charcoal kiln with time difference.

In order to solve the above-mentioned problems, the improved apparatus of the time-lag coal-making type charcoal kiln of the present invention is provided with a wood vinegar liquid sampling device and a smoke exhaust treatment device in a chimney attached to a smoke exhaust port, and a longitudinal direction of a lower portion of an outer wall. This is a time difference coal production type charcoal kiln in which a plurality of smoke stacks provided at regular intervals are sequentially closed with a time difference therebetween to produce coal.
In the improved apparatus, the bottom of the smoke control chimney is formed in an inverted T-shaped tube so that the inside of the kiln can be directly seen, and an opening at one end of the bottom of the inverted T-shaped tube is provided on the outer wall of the charcoal kiln. An inspection lid is provided at the opening at the other end of the bottom, connected to the intake and exhaust ports, and an open / close valve is provided in the middle of the inverted T-shaped cylinder so that smoke entering each of the smoke control chimneys can be discharged to the chimney. The upper end is connected to the chimney via a discharge pipe.

According to a second aspect of the present invention, in the above configuration, the wood vinegar liquid collecting device is provided with a drain port at a bottom portion, and is connected to a chimney that guides exhaust gas from a charcoal kiln to a peripheral wall. And a smoke exhaust box provided with a smoke outlet for discharging the internal smoke exhaust to a chimney, and a water exchange pipe installed at the center of the space inside the smoke exhaust box with a water supply pipe and a drain pipe from outside. And a cooling water tank for heat exchange.
Then, the high-temperature smoke discharged from the charcoal kiln is cooled in a cooling water tank to extract the wood vinegar.

  Further, in the invention according to claim 3, in the above configuration, a bypass pipe bypassing the wood vinegar liquid collecting device is connected to a chimney on the smoke inlet side and a smoke stack on the smoke exhaust port side of the wood vinegar liquid collecting device, At the connection between the chimney on the smoke inlet side of the wood vinegar liquid collecting device and the bypass pipe, open / close switching means for opening only one of the wood vinegar liquid collecting device side and the bypass pipe side is provided.

Furthermore, in the invention according to claim 4, in the above configuration, the smoke exhaust treatment device is connected to a chimney for introducing smoke exhaust from the wood vinegar liquid collecting device, and an exhaust gas that exhausts the internal smoke exhaust. A combustion furnace having a chimney, a high-temperature burner provided facing the smoke intake of the combustion furnace, a temperature sensor provided in the combustion furnace, and a furnace temperature of 800 based on the temperature detected by the temperature sensor. And a temperature control unit for controlling the output of the high-temperature burner so that the temperature becomes not less than ° C.
Then, the flue gas in the combustion furnace introduced can be burned at a high temperature.

The improved apparatus of the time difference coal making type charcoal kiln of the present invention has the above-described configuration, and by improving the above-mentioned smoked chimney, if the inspection lid in which the bottom of the smoked chimney is provided in the inverted T-shaped tube is opened, the charcoal burning is opened. The inside of the kiln can be directly seen, and the degree of carbonization of the wood can be known from the color of the burning flame, and the timing of the opening / closing control of the on-off valve provided in the smoking chimney can be reliably grasped. For this reason, the carbonization efficiency can be further increased.
And, since the smoke entering each smoked chimney can be discharged to the chimney by the exhaust pipe provided at the upper end of each smoked chimney, the smoke is discharged to the outside from each smoked chimney. Is gone.

Moreover, in the above-mentioned wood vinegar liquid collecting apparatus, the tar component adhering to the surface of the cooling water tank can be easily removed because it melts and flows down when the temperature is temporarily increased, and thus the tar component is short. Even if a large amount accumulates in a long time, the removal processing can be easily performed, so that there is no possibility of being unusable.
And, by connecting the bypass pipe bypassing the wood vinegar liquid collecting device through the opening / closing switching means, when it is desired to avoid the collection due to the risk that the harmful substances contained in the waste material are mixed and the quality of the wood vinegar liquid is reduced, By operating the switching means, the smoke exhaust can be sent to the smoke exhaust treatment device bypassing the wood vinegar liquid collecting device.

  Furthermore, in the above-mentioned smoke exhaust treatment device, dust discharged together with the combustion gas generated in the carbonization process of wood in the time-lag coal-making type charcoal kiln is subjected to combustion treatment at a high temperature of 800 ° C. or more, so that the dust The amount of dust to be discharged to the vehicle can be greatly reduced. In addition, harmful chemical substances generated can be made harmless by combustion decomposition at the same time.

  The following description is based on the drawings showing the embodiment of the present invention.

As shown in Fig. 1, the present invention is a time-shift coal-making type charcoal kiln in which a long piece of wood is carbonized with a time difference from the front mouth to the back so that it can be carbonized without cutting it. It is an improved device.
A plurality of smoke control chimneys 5 are provided at a plurality of regular intervals on the low side wall surface of the charcoal kiln, and an on-off valve 19 provided on the smoke control chimney 5 sets a time difference from the front mouth to the back while observing the carbonized state of the wood W. It can be placed and closed for coal production.
A chimney 2 attached to the smoke outlet 1a of the charcoal kiln 1 is provided with a wood vinegar liquid collecting device 3 for collecting wood vinegar from smoke and a flue gas treatment device 4 for reducing the emission of soot.

One of the improved devices of the present invention is in the smoke control chimney 5.
As shown in FIG. 1, the smoke control chimneys 5 are provided at a plurality of regular intervals in the length direction of the lower portion of the outer wall of the coal stove kiln 1 with a time difference.
2 and 3, the bottom of the chimney 5 is formed in an inverted T-shape so that the inside of the kiln can be directly viewed. An opening 5a at one end of the bottom is connected to a suction / exhaust port 6 provided on the outer wall of the charcoal kiln 1, and an inspection lid 7 is provided at an opening 5b at the other end of the bottom.
With this improvement, as shown in FIG. 2, it is possible to open the inspection lid 7 and directly see the burning wood W in the kiln 1.

  In conventional smoke-controlled chimneys, the timing of opening and closing the shut-off valve is determined by estimating the degree of carbonization in the charcoal kiln based on the color of the flame spouting from the exhaust port of the smoke-controlled chimney and based on the indirect phenomenon. It had to be, so the color of the flame was so subtle that the judgment was difficult. On the other hand, in the present invention, if the inspection lid 7 is opened, the degree of carbonization of the wood W can be directly seen by looking into the kiln 1, so that the opening and closing valve 19 of the chimney 5 is opened and closed. The timing of the operation can be reliably determined.

Also, as shown in FIG. 1, an open / close valve 19 is provided in the middle of the inverted T-shaped cylinder so that smoke entering each of the smoke control chimneys 5 can be discharged to the chimney 2, and a discharge pipe 23 is provided at the upper end. To the chimney 2.
With this improvement, the smoke entering each smoke control chimney 5 can be discharged to the chimney 2, and the smoke is not discharged from the smoke control chimney 5 to the outside.

Another embodiment of the improved device of the present invention is a device for collecting wood vinegar liquid 3.
As shown in FIG. 4, the wood vinegar liquid collecting device 3 is provided with a drain port 15 at the bottom, and is connected to a chimney 2 through which smoke from the charcoal kiln 1 is introduced. A smoke exhaust box 9 provided with a smoke exhaust port 14 for exhausting air.
Then, a cooling water tank 3 having a water supply pipe 10 from outside and a drain pipe 11 for exchanging water and exchanging heat is installed at the center of the space S in the smoke exhaust box 9.
Then, the high-temperature flue gas introduced from the charcoal kiln 1 is cooled in the cooling water tank 8, and the wood vinegar liquid M is extracted from the flue gas. The extracted wood vinegar liquid M is made to flow out of the smoke exhaust box 9 through a drain pipe provided at a drain port 15 at the bottom of the box.
Then, a container is placed under the discharge pipe to temporarily store the flowed wood vinegar liquid M, and further divided into bottles so that the wood vinegar liquid can be sold as it is.

As shown in FIG. 1, a bypass pipe 24 that bypasses the wood vinegar liquid collecting device 3 is connected to the chimney 2 on the smoke inlet 13 side and the chimney 12 on the smoke exhaust port side of the wood vinegar liquid collecting device 3.
Further, at the connection between the chimney 2 on the smoke inlet 13 side of the wood vinegar liquid collecting device 3 and the bypass pipe 24, an open / close switching means by a lever that opens only one of the wood vinegar liquid collecting apparatus 3 side and the bypass pipe 24 side. 25 are provided.
When it is desired to avoid the collection due to the risk that the harmful substances contained in the waste material are mixed and the quality of the wood vinegar is deteriorated by operating the lever, the opening and closing switching means opens the bypass pipe 24 to remove the smoke from the wood vinegar collection device. By bypassing 3, it can be sent to the next flue gas treatment device, so that harmful substances are not mixed into the wood vinegar.

Still another embodiment of the improved device of the present invention is in a flue gas treatment device.
As shown in FIG. 5, the combustion furnace 16 has a smoke inlet 17 connected to a chimney 12 for introducing smoke from the wood vinegar liquid collecting device 3 and a smoke outlet 20 for discharging smoke inside. A high-temperature burner 18 is provided to face the smoke inlet 17.
A temperature sensor 22 is provided in the combustion furnace 16, and the output of the high-temperature burner 18 is set to 800 to 1100 ° C based on the temperature detected by the temperature sensor 22 so that the furnace temperature becomes 800 ° C or more. A temperature controller 21 for controlling the temperature in a range is provided.
Then, the flue gas in the combustion furnace 16 introduced is burned at a high temperature of 800 ° C. or more.

  The present invention is an improved version of the previously proposed staggered charcoal kiln, and is used in the staggered charcoal kiln.

It is a perspective view which shows each improvement apparatus with which a time difference coal making type charcoal kiln is equipped. This is a vertical side view showing a state in which the inspection lid of the main part of the smoke control chimney is opened and looking into the kiln. It is a vertical side surface which shows the state which closed the inspection lid of the principal part of the smoke control chimney. It is a perspective view which shows the state which the main part of the wood vinegar liquid collection apparatus was partially notched. It is a perspective view which shows the principal part of a smoke exhaust treatment apparatus.

Explanation of reference numerals

Reference Signs List 1 carbonization kiln 1a carbonization kiln exhaust outlet 2 chimney 3 wood vinegar liquid collecting device 4 smoke exhaust treatment device 5 smoke control chimney 5a opening at one end 5b opening at the other end 6 suction and exhaust port 7 inspection lid 8 cooling water tank 9 exhaust smoke retention Box 10 Water supply pipe 11 Drain pipe 12 Chimney 13 Smoke port 14 Smoke port 15 Drain port 16 Combustion furnace 17 Smoke port 18 High temperature burner 19 Open / close valve 20 Chimney 21 High temperature burner temperature control section 22 Temperature sensor 23 Drain pipe 24 Detour pipe 25 Opening / closing switching means M Wood vinegar liquid S Smoke stagnation space W Wood

Claims (4)

The chimney attached to the smoke exhaust outlet is equipped with a wood vinegar liquid collecting device and a smoke exhaust treatment device, and the smoke difference between the smoke control chimneys provided at a plurality of regular intervals in the length direction of the lower portion of the outer wall is sequentially closed with a time lag to produce coal. In a charcoal-making charcoal kiln,
The bottom of the smoke control chimney is formed in an inverted T-shaped tube so that the inside of the kiln can be directly viewed, and an opening at one end of the bottom of the inverted T-shaped tube is connected to an intake and exhaust port provided on the outer wall of the charcoal kiln. In addition, an inspection lid is provided at the opening at the other end of the bottom, and an opening / closing valve is provided in the middle of the inverted T-shaped cylinder so that the smoke entering each of the smoked chimneys can be discharged to the chimney, and a discharge pipe is provided at the upper end. An improved apparatus for a staggered coal-making type charcoal kiln, wherein the apparatus is connected to the chimney via a stove. Wood vinegar liquid collecting device,
A smoke exhaust box provided with a drain outlet at the bottom, a smoke inlet connected to a chimney that guides smoke from the charcoal kiln to the surrounding wall, and a smoke exhaust outlet that discharges internal smoke to the chimney,
A cooling water tank that is installed at the center of the space inside the smoke exhaust box and includes a water supply pipe from the outside and a drain pipe to exchange water and perform heat exchange,
The improved apparatus for a staggered coal making kiln according to claim 1, wherein the high temperature smoke discharged from the charcoal kiln is cooled in a cooling water tank to extract wood vinegar. A bypass pipe that bypasses the wood vinegar liquid collecting device is connected to the chimney on the smoke inlet side and the chimney on the smoke exhaust port side of the wood vinegar liquid collecting device, and the chimney on the smoke inlet side of the wood vinegar liquid collecting device is connected to the bypass pipe. 3. The improvement device of the time-lag coal making type charcoal kiln according to claim 2, wherein the portion is provided with opening / closing switching means for opening only one of the wood vinegar liquid collecting device side and the bypass pipe side. The flue gas treatment device
A combustion furnace having a smoke inlet connected to a chimney for introducing smoke from the wood vinegar liquid collecting device and a smoke exhaust for discharging the internal smoke;
A high temperature burner provided facing the smoke inlet of the combustion furnace,
A temperature sensor provided in the combustion furnace,
A temperature control unit that controls the output of the high-temperature burner so that the furnace temperature is 800 ° C. or higher based on the temperature detected by the temperature sensor,
4. The improved apparatus for a staggered coal making type kiln according to any one of claims 1 to 3, wherein the introduced flue gas in the combustion furnace can be burned at a high temperature.

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