JPH0465484A - Device for producing smoked charcoal - Google Patents

Abstract

PURPOSE:To prevent smoked charcoal from attaching itself to a heat transfer face in the case of heating a trough from the outside and to check reduction in heat efficiency by installing a screw blade to transfer in the trough. CONSTITUTION:A screw 2 driven and rotated is installed in a trough 1 having a circular cross section laid in the lateral direction, a feed opening 15 of raw material such as firewood waste is set at one side of the trough 1, an outlet 16 of smoked charcoal at the other and a heater 36 such as burner is built below the trough. In the screw 2, a revolving shaft is equipped with a great number of chain supporting members 7 and 7-1 to 7-4 to reach a spiral chain so that chain supporting parts 7a-1 to 7a-4 exist on the spiral line around the revolving shaft as center and the chain supporting part of the supporting member is furnished with a chain 8 loosely attached to approximately along the spiral line.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention 1: "Industrial Application Field" The present invention relates to a charcoal production apparatus for producing charcoal by burning lawn mowing residue.

``Conventional technology j: Rice husks, sawdust, twigs (green leaves bones), wood residues, etc. are generated in large quantities, but only a small portion of them are used, and the remainder is discarded or incinerated.On the other hand, recently the number of golf courses has increased. As a result, a large amount of lawn mowing debris is generated.If all of these are disposed of, they will emit an intolerable odor over time and become a source of pest insects.Moreover, lawn mowing debris from golf courses, etc. In many cases, it is decided not to throw away or bury the lawn mowing waste due to agreements with local governments.As a solution to this problem, incinerators are being installed. Yes, it is possible to dry the lawn after mowing and before incineration, but drying requires a lot of space and labor under the sun, and the labor costs are so high that it is practically impossible.

There are many challenges involved in burning lawn mowing residue.
Providing incinerators at reasonable prices is a challenge. On the other hand, charcoal is produced using sawdust, rice husks, etc., rather than lawn mowing residue, and if the lawn mowing residue can be used for producing charcoal, then It can be used as fertilizer, snow melting material, and is effective in terms of resource utilization, and the overall cost of processing lawn mowing residue is low.

A conventional example of a charcoal production device is the Utility Model Opening Ceremony 62-1707.
There is the one shown in ``Automatic fire extinguishing system for charcoal kiln'' in Publication No. 45, and the ``Method for producing biogas and smoky charcoal'' in JP-A-61-209293.The former is the charcoal kiln body which is a container. The raw material is put into the tank, ignited from the top, and the main body is covered with a canopy. Smoke is exhausted from the chimney installed in the lid. The latter has a compression device that also serves as a feeder for the raw material, an indirect heating furnace, and a biogas collection unit. The raw material is supplied to a compression device, and after being compressed, it is sent to a pyrolysis cylinder of an indirect heating furnace.The charcoal is then discharged from the outlet end of the pyrolysis cylinder whose diameter has been reduced.

The Kun charcoal kiln disclosed in ``Kun charcoal kiln automatic fire extinguishing system'' in Japanese Utility Model Application Publication No. 62-170745 (1) uses only fairly dry raw materials because it self-combusts without using fuel. (2) It is batch production and cannot be produced continuously automatically. (3) The exhaust gas generated when burning the raw materials is directly released into the air, but the exhaust gas has drawbacks such as an extremely strong odor regardless of the raw material. The odor of the exhaust gas can be deodorized by a deodorizing device, but since the exhaust gas contains tar, sufficient tar must be removed before it can be sent to the deodorizing device, which requires a large-scale device. In addition, the activated carbon used in deodorizing equipment has an extremely short lifespan at high temperatures, so the exhaust gas fed into the deodorizing equipment must be sufficiently cooled, and the cooling equipment has a large capacity, making the entire equipment large-scale and expensive. It ends up.

In the "biogas and smoky charcoal production method" disclosed in JP-A-61-209293, the supplied raw material is compressed to reduce its volume. However, the volume of lawn mowing waste is particularly large, and there is a problem in how to feed the raw material to the compression device. The compression device also serves as a raw material feeding device. As the raw material progresses through the pyrolysis cylinder, it becomes carbonized further.

Reduce volume. Therefore, the raw material passing through the pyrolysis cylinder was kept in a compacted state with an appropriate pressure, and the outlet end was throttled to maintain a spring action. Compression load adjustment for such feeding and consolidation of raw materials is performed by controlling a compression load adjustment gate by a compression load control circuit.

Even if such control is added, the heating source and feed rate of the raw material are also related, and the overall control device becomes complicated. Furthermore, due to the structure of the outlet end of the pyrolysis cylinder, it may not work properly due to variations in the quality of the charcoal (which may turn the charcoal into powder or obstruct its discharge, and may result in insufficient compression). If this happens, there is a risk that the material will not be sealed and a large amount of air will enter from the outlet end and cause combustion.In addition, in this conventional example, the device for extracting exhaust gas is also complex, and the control of the suction fan is difficult. If proper gas suction is not performed, there is a risk that the charcoal will not be produced.As a result of the above, this second conventional example becomes expensive.

Therefore, the present inventor previously proposed the invention of Utility Application No. 1-85362. With the idea proposed earlier, the above first
, it was decided to solve the problems of the second conventional example and provide a simple charcoal production device that can continuously produce charcoal.

The invention of Utility Application No. 1-95362, which was previously proposed by the present inventor, uses a combustion device to heat the coal raw material in the trough, but in this case, the combustion device would have to be large to reach the firing temperature, so it would be difficult to make it smaller. In this case, the heating of the charcoal becomes uneven, making it difficult to create a compact device. In addition, a water jacket is installed to lower the temperature of the coal that has been released to extinguish the fire, but this requires a large amount of water to be supplied and discarded. In addition, the coal outlet passage must be made too long.In order to prevent the water temperature from rising inside the water jacket and limit the amount of water used, it is necessary to install a radiator in the middle of the cooling water piping that is circulated by a pump, or to use a fan for cooling. However, doing so would make the equipment complicated and expensive.Of course, the product (coal) coming out of the coal outlet must not ignite and must be sufficiently cooled.

Therefore, the present inventor proposed a device related to Utility Application No. 2-3788, and solved the problem of the coal extraction device of the coal production device proposed earlier. That is, the problem was solved by improving the trough, installing a heating device as an electric heating device on the underside of the trough to improve thermal efficiency, and supplying non-flammable gas to a container-shaped coal storage container that receives the released coal.

``Problem to be Solved by the Invention J'' Each of the above-mentioned charcoal production apparatuses proposed by the present inventors rotates with a horizontal axis parallel to both ends of a trough that has a rectangular cross section and is disposed laterally. A horizontal shaft that freely supports sprocket wheels and supports a pair of sprocket wheels at either one end or both ends is connected to a rotating prime mover, and an endless chain with an agbuk is hung between the sprocket wheels at both ends on the same side. The scrapers are arranged in parallel, and both ends of the scrapers are attached to each chain in a direction that intersects with the direction of movement of each chain, a raw material inlet is provided in one of the troughs and a charcoal outlet is provided in the other, and a heating device is arranged at the bottom of the trough. When this is operated, the scraper moves on the trough bottom plate, thereby moving the grass cuttings.The grass cuttings are heated by the heating device through the trough bottom plate, and are carbonized. It turns out that the thermal efficiency decreases over time.

The reason for this is that the trough bottom plate becomes wavy due to heating. Since the scraper has a linear shape that crosses the direction of travel, it tends to follow the undulations of the trough bottom plate to a certain extent. However, there may be a portion where the scraper and the trough bottom plate do not touch. The reason why the trough bottom plate and the scraper do not come into contact is a shallow recess formed in the trough bottom plate. Since charcoal does not move, when it is repeatedly heated with a heating device, it turns into extremely hard carbide and sticks to the trough bottom plate. Although this charcoal should burn if the temperature is increased, Therefore, the temperature inside the trough cannot rise to a temperature that burns the carbide.

The coal layer that is stuck to the trough bottom plate reduces the thermal efficiency of heating the inside of the trough from the heating device. Therefore, in order to prevent the heat transfer surface of the trough from undulating due to heating, the trough is made into a cylindrical shape and the screw is accommodated in the trough, and the trough is heated by a heating device while the processed material is fed by the screw, as shown in Figures 6 and 7. As shown in FIG. 2, it was observed that a solidified layer of charcoal 48 was formed in the gap between the screw blade 47 and the inner wall of the trough 1, resulting in a decrease in thermal efficiency. This gap is small (
Can not.

In the present invention, a screw blade is provided to move into the trough, and when the trough is heated from the outside, the trough and the means for transporting the processed material in the trough are prevented from forming undulating parts and causing the processed material to stick to the trough. It is an object of the present invention to provide an apparatus for producing charcoal in which charcoal does not stick to the heat transfer surface.

The second proposal solves the problem of the present applicant's first proposal in which the coal extraction device in the coal production apparatus is equipped with a water jacket, and a large amount of cooling water must be used.

In this second proposal, the coal production equipment uses a non-flammable gas that is heavier than air, such as carbon dioxide gas. Therefore, a carbon dioxide cylinder must be prepared, and the carbon dioxide gas is exhausted in the cylinder. There is a risk that the charcoal in the charcoal storage container will ignite and start burning, so constant care must be taken to manage the carbon dioxide gas cylinder. There is a hassle of attaching and detaching the supply pipe.

It is an object of the present invention to solve the above-mentioned problems and to provide a coal producing apparatus that can produce coal in a state of extinguishment by providing a control device for combustion without using a special coal producing device.

``Means for Solving the Problems'' The first aspect of the present invention is to provide a trough with a circular cross section and a trough that is disposed in a horizontal direction, and a screw that is rotatably driven, and a raw material inlet in one of the troughs and a charcoal inlet in the other. an outlet is provided, a heating device is provided below the trough, and the screw is provided with a number of chain support members reaching onto the spiral line on the rotating shaft so that the chain support portion is on a spiral line centered on the rotating shaft, and the supporting member This charcoal manufacturing apparatus is characterized in that a chain loosely arranged substantially following the spiral wire is attached to the chain support portion of the invention.

The second invention of the present invention is provided with a conveying means for moving the processed material in the trough, a raw material input port is provided on one side of the trough, a charcoal outlet is provided on the other side, and a heating device for the processed material in the trough is provided outside the trough. A charcoal production apparatus equipped with a blower for sucking gas generated from the processed material in a trough, and a discharge pipe for guiding and discharging the gas sucked by the blower to the vicinity of the heating device so that the gas sucked by the blower can be ignited and burned by the heating device. The charcoal production apparatus is characterized in that the blower is capable of sucking a part of the gas generated from the processed material.

A third aspect of the present invention is that the blower is connected to a variable speed electric motor, and a humidity sensor is provided at the trough inlet or upstream of the trough inlet with respect to raw material input, and the humidity sensor controls the variable speed electric motor via a control device. The charcoal manufacturing apparatus according to the second invention is characterized in that the charcoal manufacturing apparatus is controlled.

"Example" Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view showing the whole. The trough 1, which has a circular cross section and is arranged laterally, is provided with a screw 2 which is rotatably driven therein. End plates 3 are fixed to both ends of the trough 1. A bearing 4.5 is fitted into the end plate 3. The bearing 4 is attached to the end plate 3 so as not to move in the axial direction, and the bearing 5 is attached to the end plate 3 so as to be able to move in the axial direction. A screw shaft 6, which is a rotating shaft, is fixed to the bearings 4 and 5. A large number of chain support members 7 are fixed to the screw shaft 6 so that the chain support portions 7a are located on the spiral line centered on the screw shaft 6. A chain 8 is attached to the chain support portion 7a of the chain support member 7, which is arranged substantially following the spiral line. The chain 8 is stretched loosely, and it is desirable that the chain 8 be stretched loosely so that it can extend outside the spiral wire.

That is, when the chain 8 comes to the lowest position in the circumferential direction of the trough 1, it is desirable that the length of the chain 8 to be in contact with the inner wall of the trough 1 and to be in contact with the inner wall of the trough 1 is long.

FIG. 2 is a cross-sectional view showing the A-A cross section and the A'-A' cross section in FIG. Branch codes 1 to 4 are assigned depending on the position of the support member. Each chain support member 7-1 and 7-2. 7-2 and 7-3. 7-3 and 7-
4.7-4 and 7-1 are divided into four parts in the circumferential direction, and are sequentially arranged in quarter pitches in the axial direction, and are arranged at each pitch. However, 1. In this embodiment, the pitch is constant, but the pitch may be changed in response to a reduction in the volume of the processed material or other changes. To attach the chain support part 7a and the chain 8, as shown in FIG. 3 in the direction of arrow B in FIG. This is a combination of these.

As shown in FIG. 1, the chain 12 is hung on a sprocket wheel 11 fixed to the screw shaft 6, and the chain 12 is hung on a sprocket wheel 14 fixed on the shaft end of the variable speed electric motor 13.

A raw material supply port 15 is provided at one upper portion in the longitudinal direction of the trough l, and a charcoal outlet 16 is provided at the other lower portion. A raw material supply device 17 is attached to the raw material supply port 15 . In the raw material supply device 17, the hopper 18 and the raw material supply port 15 are communicated with each other by a conveyor case 19 having a rectangular cross section that ascends from a hopper 18 provided on the ground toward the raw material supply port 15 of the trough. A parallel shaft 21a rotatably supported from the bottom of the hopper 18 to the conveyor case 19;
21b, 21c are provided, each shaft 21a, 21b,
Sprocket foils 22a are provided at both ends of 21c, respectively.
22b and 22c are fixed. Sprocket wheel 22a with sprocket wheel 22b as an intermediate wheel;
A pair of left and right endless chains 23 are hung between the chains 22c, and scrapers 24 (only a portion of which is shown) are attached to the chains 23 at equally spaced corners. A drive motor (not shown) is connected to the shaft 21c.

(The edge of the outlet opening of the coal outlet 16 has a lower edge receding from the vertical plane, and is provided with a lid 26 that rotates around a pin shaft 25 provided at the top of the outlet 16. A weight 28 is fixed to the horizontal bar 27 so that its position can be adjusted in the longitudinal direction of the bar 27.

The middle part of the trough 1 is located in a furnace body 29, and the furnace body 29 is made up of front and rear furnace walls 31, side walls 32, and a ceiling wall 33. The ceiling wall 33 is semicircular, and the side walls 32 and ceiling wall 33 are Both Ills are sandwiched between iron plates with a heat insulating material 34 in between. Four gas burners 36 are arranged in parallel below the trough 1 in the furnace body 29. A chimney 37 is attached to the furnace body 29 by penetrating the ceiling wall 33.

A blower 39 driven by a variable speed electric motor 38 is provided,
A scorching gas delivery pipe 41 communicating with the inside of the trough 1 and the suction port of the blower 39 and a sintering gas feed pipe 43 communicating between the discharge port of the blower 39 and the sintering gas combustion burner 42 are provided. A part of the Kenyaki gas feed pipe 43 is a vertical pipe portion 43a.
The vertical pipe portion 43a extends downward from the branch portion 43b and opens into the removable tar receiving tank 40.

The smoked gas combustion burner 42 is located near the gas burner 36, and the heat of the gas burner 36 causes the gas released from the smoked gas combustion burner 42 to be combusted. Blower 39
By changing the speed of the combustion gas, the combustion gas is discharged from the trough 1 through the gas discharge pipe 41 (the ratio of the combustion gas to the total amount of the combustion gas is variable).

The operation of the present invention in the above configuration is as follows. Let's talk about the case where the raw material is lawn mowing waste. When the device starts operating, the shaft 21c of the raw material supply device 17 rotates counterclockwise, and the chain 23 moves in the direction of the arrow A in the figure.
When the drive electric motor 13 for the screw moves on the same wheel I, the sprocket wheel 14 rotates, and the sprocket wheel 11 rotates via the chain 12 to rotate the screw shaft 6, so that the screw 2 is supported by the bearing 45 and rotates.

The rotation direction is such that the processed material starts from the raw material supply port 15 side (n.
The direction is toward the 6th side. Also, variable speed electric motor 3 for blower
8 is energized and rotates the blower 39. Then, the gas burner 36 is ignited by an ignition device (not shown).

The grass clippings thrown in from the hopper 18 at the raw material input port are not tangled in short grass and are like loose grass, so when they are thrown in, they reach the bottom of the front part of the conveyor case 19 from the hopper 18. When the grass cuttings are put into the hopper 18 to a predetermined depth, the grass cuttings close the entrance of the conveyor case 19, and the entrance side of the conveyor case 19 is sealed, thereby creating a material seal. As the lower part of the chain 23 moves in the A direction, the scraper 24 moves and sends the grass cuttings in the A direction. As a result, the lawn mowing waste on the entrance side of the conveyor case 19 is sent to the raw material supply port 15 and enters the trough 1 from the raw material supply port 15. Between the chain support parts 7a of the chain support members 7 that are adjacent to each other, the chain 8 is not stretched but is attached so that it hangs down, so in the state shown in FIG. 1 and the support part ?a-17a-4 in the lateral direction leans close to the inner wall of the trough 1.Then, the chain support parts 7a-1 and 7a-4 in the lateral direction and the chain support part 7a-17a-4 in the upper direction 7a
-3, it hangs away from the inner wall of trough 1. When the screw 2 is rotated 45 degrees counterclockwise from the state shown in FIG. 2, it becomes the state shown in FIG. a-1,
When the chain 8 between 7a and 4 hangs down, it touches the lower quadrant of the trough 1 in the circumferential direction of the trough 1, and
When viewed in plan, the longitudinal direction is oblique, roughly following the spiral line centered on the screw shaft 6. And the chain support portions 7a-1, 7a-4 of the chain support member 7 facing downward and the chain support portions of the chain support member 7 facing upward? a-2 and 7a=3 are in the upper and lower positions, respectively, and the chains 8 between them are suspended from the upper chain support parts 7a-2 and 7a-3, respectively, and are connected to the lower chain support parts 7a-1 and 7a. It slackens around -4. The upper chain support portions 7a-2 and 7a-3 lean away from the inner wall of the trough 1. Chain 8 between each adjacent chain support part 78
changes its attitude as the screw 2 rotates, and assumes the above-mentioned attitude. Since the chain 8 substantially follows a spiral line centered on the screw shaft 6, the rotation of the screw 2 gives advancement. Therefore, the lawn mowing waste coming in from the raw material supply port 15 is sent by the chain 8. Then, the lawn mowing waste heated through the trough 1 by the gas burner 36 is burned and carbonized while the trough 1 moves toward the charcoal outlet 16. The carbonized lawn mowing waste moves at the bottom of the trough 1, and at the bottom of the trough 1, the die 8 sequentially moves in contact with the inner wall of the trough 1. Even if the trough 1 is deformed by heating, the chain 8 remains loosely stretched, so it will still move in contact with the lower inner wall of the trough 1.
It is sent without sticking to the inner wall of the lower part.

The blower 39 sucks in part of the gas generated by heating the lawn mowing waste. The gas generated by heating lawn mowing waste can be roughly divided into two types: water vapor released when the moisture contained in lawn mowing waste is dried by heating, and unburned flammable gas generated by incomplete combustion of lawn mowing waste. be. The gas in the trough 1 is sucked into the blower 39 through the scorched gas outlet pipe 41, and the discharged gas is sent to the scorched gas combustion burner 42 through the scorched gas introduction pipe 43, and the gas blown out from the burner 42 is It burns under the heated gas of the gas burner 36, heats the trough 1, completely burns the unburned gas itself, and the exhaust gas of the burner 36, 42 is discharged from the chimney 37. (The gas passing through the burnt gas feed pipe 43 is separated into tar components by the vertical pipe portion 43a, and the tar components are stored in the tar receiving tank 40.

The charcoal that has reached the charcoal outlet 16 fills the charcoal outlet 16, and its weight is applied to the outlet lid 26.

When the amount of coal at the coal outlet 16 increases, the weight of the coal pushes the outlet lid 26, opens the outlet lid 26 around the pin shaft 25 against the rotational force of the weight 28, and discharges the coal. Coal was released (
The coal enters a transport vehicle (not shown).

Here, the rotational speed of the variable speed electric motor 38 that drives the blower 39 is adjusted as follows. Trough the ability of Blower 39
The charcoal is designed to suck all the gas generated from the lawn mowing residue inside, and when operated at full capacity, the temperature of the charcoal is high, and if it is released outside, it will catch fire. Therefore, in the past, the temperature was lowered in advance by surrounding the air outlet with a water-cooling jacket, or the coal was discharged into a carbon dioxide atmosphere, and then the temperature was waited until the coal fell below the ignition temperature. Conventionally, the blower 39 is operated by a constant speed electric motor, and its ability is to suck all the gas generated from the lawn mowing debris in the trough 1.

When the speed of the variable speed electric motor 38 is gradually decreased, the blower 3
9, the amount of gas sucked decreases. As the amount of gas suctioned by the blower 39 is reduced, the charcoal coming out from the blower outlet 16 will eventually come out with water vapor dissipated. After a while, the moisture dissipates and dries at its own temperature, and at the same time, the temperature decreases as the moisture evaporates.

The diameter of the trough 1 was 300 mm, the external temperature of the trough 1 was 550°C, and the charcoal gas outlet pipe 41 was placed on the outlet side of the trough 1.
% is extracted with the blower 39, the extracted coal emits water vapor, and if left to stand, it will naturally dry in about 5 minutes. The gun charcoal production device previously proposed by the present inventor produces about 65 kg of charcoal when the charcoal is stuck to the bottom of the trough.
Firing could not be performed unless heated to 0° C., resulting in a significant decrease in thermal efficiency, or in this example, no charcoal was observed to adhere to the inside of the trough 1.

The amount of gas generated in the trough 1 varies depending on the moisture content of the raw material, the type of raw material, the feed rate of the raw material, the feed rate, the heating temperature, etc. Therefore, if the conditions are constant, the rotation speed of the blower 39 can be kept constant. , such things are exceptions, so
It is desirable that the blower 39 has variable suction capacity.

The speed of the variable speed electric motor 38 that drives the blower 39 can be controlled manually, but when carbonizing similar materials such as lawn mowing waste, a humidity sensor 44 installed in the conveyor case 19 is used as shown in FIG. The humidity around the lawn mowing waste is detected, and the variable speed electric motor 38 is controlled via the control device 45. That is, when the temperature detected by the temperature sensor 44 is high, the speed of the variable speed motor 38 is increased to increase the proportion of the amount of gas generated in the trough 1 sucked by the blower 39, and when the humidity is low, the variable speed motor 38 is slowed down and the blower 39, the proportion of trough l spontaneously generated gas to be sucked is reduced. In any case? The control is performed by giving a time lag between when the humidity sensor 44 detects the grass cuttings and the mowing debris at the humidity sensor 44 is transported into the trough 1.

The produced charcoal is used as fertilizer or snow melting agent. In addition, by diluting tar with water and using it as tar fertilizer,
It has become known that it also has the aftereffect of preventing moles from forming because worms do not form.

In the embodiment, the treated material is made of lawn mowing residue, but green twigs and the like can also be cut with a cutter.

[Effects of the Invention] The first aspect of the present invention is that (the trough of the coal manufacturing device is made circular in cross section, and the screw housed in the trough is arranged on the rotating shaft so that the chain support part is on a spiral line centered on the rotating shaft. A large number of chain support members reaching above the spiral wire are provided, and a chain loosely arranged approximately following the spiral wire is attached to the chain support portion of the support member, so that (the charcoal does not stick to the bottom of the trough where the charcoal moves). .Therefore, thermal efficiency does not decrease.

The second invention of the present invention is provided with a conveying means for moving the processed material in the trough, a raw material input port is provided on one side of the trough, a kun outlet is provided on the other side, and a heating device for the processed material in the trough is provided outside the trough. A charcoal manufacturing apparatus is provided with a blower that sucks gas generated from the processed material in the trough, and a burner that guides and burns the gas discharged from the blower is installed near the heating device, and the blower sucks gas generated from the processed material in the trough. Because some of the generated gas can be inhaled, the charcoal is extracted at high humidity and contains water vapor, so it does not catch fire and dries on its own in a short period of time. For this reason, there is no longer a need for a cold button device or a device for creating an atmosphere of non-flammable gas, which was required in the past to suppress the ignition of the coal that was released due to its high temperature and was likely to catch fire.

The third invention of the present invention is the second invention in which the humidity of the raw material can be detected and the capacity of the blower can be controlled. It can be controlled appropriately, and there is no need to check the moisture content of each raw material.

[Brief explanation of drawings]

Section 1: A vertical cross-sectional view of an embodiment of the present invention, FIG. 2 is A of FIG.
-A and A'-A' longitudinal cross-sectional views, Figure 3 is the 2nd
An enlarged view in the direction of arrow B in the figure, FIG. 4 is the same sectional view as FIG. 2 showing the action, Section 5 is a flow sheet showing another embodiment of the present invention,
FIG. 6 is a longitudinal sectional view of the conventional example, and FIG. 7 is a sectional view taken along line CC in FIG. ■...Trough 2...Screw 3...End plate 4,5
・・Bearing 6・・Screw shaft 77-1.7-2.7
-3.7-4--Chain support member 7a7a-1, 7a
-2, 7a-3, 7a-4...Chain support part 8...Chain 8a...-piece 9...Welding 1 Toss brocket foil 12...Chain 13...Variable speed electric motor 14...Sprocket wheel
15... Raw material supply port -16... Coal outlet 17...
Raw material supply device 18...Hopper 19--: Bear case 21a, 21b, 21c...Shaft 22a, 2
2b, 22c...Sprocket wheel 23...Chain 24...Scraper 25...Bin shaft 26...
M 27... Horizontal bar 28... Weight 29... Furnace body 31... Furnace wall 32... Side wall 33... Ceiling wall 3
4. Insulation material 36. Gas burner 37. Chimney 3
8...Variable speed electric motor 39...Blower 4o...Tar receiving tank 41...(Burning gas outlet pipe 42...(Burning gas combustion burner 43...Burning gas feed pipe 43a...
Vertical pipe part 43b... Branch part 44... Humidity sensor 45
- Control device 47... Screw blade 48... Opening layer.

Claims (1)

[Claims] 1. A rotatably driven screw is provided in a trough with a circular cross section and arranged laterally, a raw material inlet is provided on one side of the trough and a charcoal outlet is provided on the other side, and heating is provided below the trough. The screw has a plurality of chain support members on the rotating shaft that reach the spiral line so that the screw has a chain supporting member on the spiral line centered on the rotating shaft, and the chain supporting member of the supporting member has a chain supporting member on the spiral line. A charcoal manufacturing device characterized by a chain that is loosely arranged in almost the same way. 2. The trough is equipped with a transportation means for moving the processed material in the trough, a raw material input port is provided on one side of the trough, a charcoal outlet is provided on the other side, and a heating device for the processed material in the trough is provided outside the trough for charcoal production. The apparatus includes a blower that sucks gas generated from the processing material in the trough, and a discharge pipe that guides and discharges the suction gas of the blower to the vicinity of the heating device so that the gas sucked by the blower can be ignited and burned by the heating device, and the blower A charcoal manufacturing device that is characterized by being able to suck a part of the gas generated from objects. 3. A claim characterized in that the blower is connected to a variable speed electric motor, a humidity sensor is provided at the trough inlet or upstream of the trough inlet with respect to raw material input, and the variable speed electric motor is controlled by the humidity sensor via a control device. Item 2. The charcoal manufacturing device according to item 2.