JP2005144246A - Garbage drying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage drying apparatus capable of enhancing heat generation efficiency of a heater without being affected by the temperature outside a treating machine main body and preventing malfunction of a check valve. <P>SOLUTION: The garbage treating machine is composed of: a storage container for storing garbage; and the treating machine main body which consists of a drying chamber of storing the storage container, an air circulation path for circulating air in the drying chamber, the heater for heating air in the air circulation path, a blower disposed on the air circulation path, a suction part for taking air outside the drying chamber into the drying chamber, a branching part for branching air in the air circulation path into the drying chamber and an exhaust part, the exhaust part which communicates with the division part and exhausts air flowing-in from the division part to a drain pipe, and a check valve which is disposed on the exhaust part, exhausts air in a treating machine main body to the outside, and intercepts air entering into the inside from the outside of the treating machine main body. Therein, the suction part is covered with a cover main body on which a suction port is disposed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a cocoon dryer for drying cocoons generated indoors such as a kitchen.

The conventional paddy dryer shown in FIGS. 5 to 6 is composed of a storage container and a processor main body described below.
The storage container is a box and stores the bag inside.
The processor main body includes a drying chamber, an air circulation path, a heater, a blower, an intake unit, a branch unit, an exhaust unit, and a backflow prevention valve described below.
The drying chamber is a box and stores the storage container.
The air circulation path is provided in communication with the drying chamber in order to circulate the air in the drying chamber.
The heater includes a main body part outside the main body of the processor, and includes a heat radiating plate that is suspended from the main body part and heats the air in the air circulation path.
The blower is provided in the air circulation path, and is composed of a fan motor unit that is activated when the power is turned on and stopped when the power is turned off, and a fan section provided in the air circulation path, and is arranged upstream of the heater. The
The intake section is provided in the drying chamber in order to take air outside the drying chamber into the drying chamber.
The branch part is arranged in the air circulation path, and branches the air sucked from the intake part into air going to the drying chamber and air going to the exhaust part described later, and is arranged downstream of the heater.
The exhaust part is arranged downstream of the branch part as shown in FIG. 6 and is for discharging the air flowing in from the branch part to the outside of the soot dryer, and is connected to the drain pipe through the hose body. The air in the processor body is discharged into the drain pipe. Further, the exhaust part is configured such that the middle part is bent upward and the exhaust port is located at a height equal to or higher than the drain trap.
A backflow prevention valve is provided at the inlet of the exhaust part, and is a member for discharging the air inside the processor main body to the outside and blocking the air entering the inside from the outside of the processor main body. The valve body is movable downstream from the valve seat, and includes a hinge that rotatably fixes the valve body. When the blower operates, the valve body rotates in the side direction and downstream from the valve seat to open the exhaust part. When the blower does not operate, the valve body rotates to the upstream side in the side direction. Sit to the side and close the exhaust.
Further, the air circulation path, the heater, the blower, the intake section, the branch section, and the exhaust section are configured to be integrated at the upper part of the processor main body.

When using the above-mentioned cocoon dryer, the following effects are obtained.
As shown in FIG. 5, when the soot is contained in the storage container, when the soot dryer is operated, the fan motor unit of the blower operates and the fan rotates to circulate the air inside the processor main body. At this time, the fan sucks the air in the drying chamber, and discharges the sucked air into the air circulation path. The air in the air circulation path is heated by the heat sink of the heater and the temperature rises. The air whose temperature has risen is branched into the exhaust section and the drying chamber at the branch section. The air branched into the drying chamber passes through the upper surface of the storage container, is sucked into the fan of the blower again, and again passes through the air circulation path and is sent into the drying chamber as described above. In addition, the air that has flowed out from the branch portion toward the exhaust portion is exhausted from the exhaust portion to the drain pipe through the hose body. Therefore, as described above, the air in the drying chamber is heated and circulated with increased temperature.

In the above-described soot dryer, air heated in the drying chamber is repeatedly circulated, so that the moisture of the soot in the storage container in the drying chamber is evaporated and dried. By doing so, the volume of the koji is reduced and soup from the koji is eliminated.
In addition, the air exhausted from the processor main body is exhausted to the drain pipe because the check valve disposed in the exhaust part is opened. Further, even when the power is turned off, the check valve of the exhaust unit closes the exhaust unit, so that malodor from the drain pipe does not flow back to the processor main body side.
JP 2001-153553 A

The conventional garbage dryer as described above has the following problems.
Since the intake port for drawing air into the processor main body is opened outside the processor main body, the circulating air in the processor main body is easily affected by the temperature and humidity of the outside air. For example, when the temperature is extremely low However, the heating efficiency of the heater deteriorated, and it took time to dry the soot in the drying chamber, and the drying was insufficient.
In addition, since the structure of the exhaust section has a structure in which the midway path is bent upward, the condensed water generated due to the temperature difference between the inside of the drain pipe and the outside air is bent upward from the exhaust section entrance in the exhaust section. There was a case where it accumulates in the part that is. Furthermore, since the backflow prevention valve rotates in the lateral direction and is provided at the exhaust section entrance, when the condensed water accumulates in the exhaust section, the valve body does not sit on the valve seat due to the condensed water, The exhaust part could not be closed, and the bad smell of the drain pipe sometimes flowed back into the main body of the processor.

From the above, the soot dryer of the present invention is not affected by the temperature outside the main body of the processor, and is intended to improve the heat generation efficiency of the heater and to eliminate the malfunction of the check valve. It was invented.

The bag dryer of the present invention includes a storage container (1) for storing bag, a box, a drying chamber (2) for storing the storage container (1), and a drying chamber (2 The air circulation path (3) for circulating the air in the air circulation path, the heater (4) for heating the air in the air circulation path (3) provided on the air circulation path (3), and the air circulation path (3) A blower (5) provided in the air circulation path (3) provided above, and air outside the drying chamber (2) provided on the air circulation path (3) in the drying chamber (2) And the air in the air circulation path (3) provided on the air circulation path (3) branches into the drying chamber (2) and the exhaust section (8) described later. Branching portion (7) that communicates with the branching portion (7) provided on the air circulation path (3), and drains the air flowing in from the branching portion (7) The exhaust unit (8) to be discharged is provided in the exhaust unit (8), and the air in the processor main body (10) is exhausted to the outside, and the air intruding from the outside to the inside of the processor main body (10) is blocked. In the soot processor composed of a processor main body (10) comprising a backflow prevention valve (9), the intake section (6) is covered with a cover main body (11) provided with an inlet (12). A cocoon dryer characterized by comprising.

The soot dryer according to the present invention is the soot dryer according to paragraph 0007, wherein the heater (4) is covered with the cover body (11).

The bag dryer according to the present invention is the bag dryer according to paragraph 0007 or 0008, wherein the cover body (11) includes a heat insulating material (13).

The straw dryer of the present invention is characterized in that the air circulation path (3) and the blower (5) are covered with the cover body (11), according to any one of the paragraphs 0007 to 0008, It is a cocoon dryer.

The bag dryer of the present invention is provided with a ridge (14) in the processor main body (10), and a groove (15) corresponding to the ridge (14) is provided in the cover main body (11). The groove (15) is slid on the ridge (14), and the cover body (11) can be attached to and detached from the processor main body (10) in a state where the groove (15) is disposed at the attachment position. The straw dryer according to any one of paragraphs 0007 to 0010.

In the soot dryer according to the present invention, the air circulation path (3), the heater (4), the blower (5), the intake section (6), and the exhaust section (8) are integrated on the upper surface portion of the processor main body (10). The straw dryer according to any one of paragraphs 0007 to 0011, wherein the dryer is configured as described above.

The cocoon dryer of the present invention is provided with a repellent net (16) in the air inlet (12) of the cover main body (11) for preventing harmful insects from entering the cover main body (11) from outside. It is a straw dryer as described in any one of said paragraph 0007 thru | or 0012 characterized by these.

In the soot dryer according to the present invention, the exhaust part (8) is provided with the backflow prevention valve (9) at the inlet of the exhaust part (8), and is substantially L-shaped with the midway of the exhaust part (8) facing downward. The rice cake drier according to any one of paragraphs 0007 to 0013, wherein the bag dryer is configured to be bent in a bent shape.

The soot dryer according to the present invention includes a backflow prevention valve (9) downstream of the bent portion of the exhaust part (8), and includes a valve seat (9c) and a valve body (9b). 5) When the valve body (9b) operates, the valve body (9b) rises above the valve seat (9c) and opens the exhaust part (8). When the blower (5) does not operate, the valve body (9b) descends and the valve The soot dryer according to paragraph 0014, characterized by comprising an electromagnetic solenoid valve (9a) that sits on the seat (9c) and closes the exhaust part (8).

In the soot dryer of the present invention, the backflow prevention valve (9) is normally closed, and when the blower (5) is operated, the pressure in the processor main body (10) becomes a positive pressure, so that the exhaust section ( 8) is opened, and the blower (5) is provided with an emergency valve (17) that closes the exhaust (8) by its own weight when the blower (5) is not operated. is there.

The straw dryer of the present invention has the following effects.
1. In the soot dryer according to the present invention, the air intake section is formed inside the cover body, so that the air outside the processor body is not directly taken in. For this reason, it is possible to make the intake air less susceptible to the influence of the outside air temperature.
2. Since the cover body is provided with a heat insulating material, the temperature inside the cover body does not escape to the outside. For this reason, the temperature inside the cover body is hardly affected by the temperature outside the cover body.
3. Since the heater is formed in the cover body, the air heated by the heater can be sucked again while keeping the temperature. For this reason, since the heated air is again heated by the heater of the air circulation path, the heat generation efficiency of the heater is greatly improved.
4). Since the air circulation path is configured in the cover body, the heated air circulating inside the air circulation path can be circulated while keeping warm.
5). Since the blower is configured in the cover body, the heat generated by the fan motor unit of the blower itself is also kept warm in the cover body, and the heat generation efficiency of the heater is further improved.
6). Since the cover main body is configured to be detachable with respect to the processing machine main body, maintenance and repair of the intake section, the heater, and the blower section can be performed.
7). An air circulation path, a blower, a heater, an exhaust port, and an intake port are integrated on the upper surface of the processor main body. Therefore, the air circulation path, the blower, and the heater can be kept warm, and the maintenance can be completed only by removing and attaching only the cover body.
8). By forming the groove portion in the cover main body and the ridge portion on the upper portion of the processor main body so that both are slidable, the cover main body can be easily removed simply by sliding the cover main body relative to the processor main body.
9. Since the insect net is detachably attached to the air inlet of the cover body, it is possible to clean the insects and garbage collected by the insect net simply by removing the insect net and washing it.
10. Even if the inside of the exhaust part is condensed, the condensed water is drained to the drain pipe without being stored in the exhaust part because the middle path of the exhaust part is formed in a substantially L shape. For this reason, the backflow prevention valve can operate smoothly without malfunctioning.
11. Since the electromagnetic solenoid valve opens and closes the valve body by an electric current, the exhaust part is always opened / closed by turning the power ON / OFF. For this reason, the air discharged from the processor main body can be smoothly drained into the drain pipe, and malodors and pests from the drain pipe do not flow back into the processor main body.
12 Since the solenoid solenoid valve is equipped with an emergency valve, even if the solenoid solenoid valve fails and does not operate, the emergency valve opens and closes the exhaust before it is repaired. Odors and pests from the tube do not flow backward.

1 to 4A of the present invention includes a storage container (1), a processor main body (10), and a cover main body (11) described below.
The storage container (1) is a box and stores the bag inside.
The processor main body (10) includes a drying chamber (2), an air circulation path (3), a heater (4), a blower (5), an intake part (6), a branch part (7), and an exhaust part, which will be described below. (8) Consists of a backflow prevention valve (9).
The drying chamber (2) is a box and stores the storage container (1).
The air circulation path (3) is a structure for circulating the air in the drying chamber (2), and both ends thereof are provided in communication with the drying chamber (2).
The heater (4) has a main body outside the processor main body (10), and a heat sink (4a) that is suspended from the main body and heats the air in the air circulation path (3) is provided in the air circulation path (3). To prepare for.
The blower (5) includes a fan motor unit (5b) provided in the processor main body (10) and a fan part (5a) provided in the air circulation path (3). The heater (4) It is arranged upstream.
The intake section (6) is a structure for taking air outside the drying chamber (2) into the drying chamber (2), and is provided in the drying chamber (2).
The branch part (7) is arranged in the air circulation path (3), and the air drawn from the intake part (6) is directed into the drying chamber (2) and the air is directed to the exhaust part (8) described later. And is arranged downstream of the heater (4).
The exhaust part (8) is disposed downstream of the branch part (7), and is for discharging the air flowing in from the branch part (7) to the drain pipe, and is provided via a hose body (not shown). Connected to a drain pipe (not shown), and the air in the processor main body (10) is discharged into the drain pipe. Further, the exhaust part (8) is formed by bending the middle part downward.
The backflow prevention valve (9) is provided at the inlet of the exhaust part (8) as shown in FIG. 4A, and the air in the processor main body (10) is discharged to the outside, and the processor main body (10 ) It is a member for blocking air that enters from the outside to the inside, and includes a valve seat (9c), a valve body (9b) and a valve body (9b) that are movable in the lateral direction downstream from the valve seat (9c). It consists of a hinge that is pivotably fixed. When the blower (5) is operated, the valve body (9b) is rotated in the lateral direction and downstream from the valve seat (9c) to open the exhaust part (8), and the blower (5) is not operated. The valve element (9b) rotates to the upstream side in the lateral direction and is seated on the valve seat (9c) side to close the exhaust part (8).
In addition, the air circulation path (3), the heater (4), the blower (5), the intake section (6), and the exhaust section (8) are configured to be integrated on the upper part of the processor main body (10). And the convex part (14) which is a convex-shaped groove | channel is comprised by the processor main body (10) upper part.
As shown in FIGS. 2 and 3, the cover main body (11) includes a box cover (11a) whose front surface is released, and a front panel (11b) attached to the cover (11a). 3) A member that covers the heater (4), the blower (5), the intake section (6), the branch section (7), and the exhaust section (8) from the upper surface of the processor main body (10).
On the inner surface of the cover (11a) shown in FIG. 2, a groove (15) corresponding to the ridge (14) of the processor main body (10) is configured. The cover (11a) has an inner surface provided with a heat insulating material (13) such as glass wool or urethane resin and an engaging recess (11d) that engages with an engaging claw (11c) of the front panel (11b) described later. Composed.
The front panel (11b) shown in FIG. 3 has a partially opened air inlet (12) and pests outside the processor main body (10) entering the cover (11a) from the air inlet (12). In order to prevent this, an insect net (16) is provided which is detachably attached to the air inlet (12). In addition, the intake port (12) is configured with a catch (12a) having a substantially L-shaped cross-section in three directions except for the upper surface of the intake port (12), and the insect net (16) is slidable and detachable from above. It is configured to be attached to.
The front panel (11b) includes an engaging claw (11c) that engages with the engaging recess (11d) of the cover (11a), and the front panel (11b) is attached to and detached from the cover (11a). It has a free configuration.
With the above configuration, the cover main body (11) can be attached to and detached from the processor main body (10) at a fixed position by removing the front panel (11b) and sliding the cover (11a) back and forth. Composed.

The above koji dryer can be used as follows.
When the basket is contained in the storage container (1), when the basket dryer is operated, the fan motor unit (5b) of the blower (5) is operated and the fan section (5a) is rotated to rotate the processor main body. Wind circulates inside (10). The operation of the individual members will be described. The fan part (5a) sucks the air in the drying chamber (2) and further releases it into the air circulation path (3). The air in the air circulation path (3) is heated by heat radiation from the heat radiating plate (4a) of the heater (4), and the temperature is raised and then sent to the branching section (7). It branches into the exhaust part (8) and the drying chamber (2). The air branched into the drying chamber (2) passes through the upper surface of the basket in the storage container (1), takes the moisture of the bottle, and is sucked into the fan part (5a) of the blower (5) again. As described above, it circulates in the air circulation path (3) again. Moreover, the air that has flowed out from the branch part (7) to the exhaust part (8) side is exhausted from the exhaust part (8) to the drain pipe through the hose body. At this time, the backflow prevention valve (9) is movable in the side surface direction because the inside of the processor main body (10) has a positive pressure, and the exhaust from the branching portion (7) can be exhausted to the drain pipe side. . As described above, the air in the drying chamber (2) has a configuration in which air heated to increase in temperature is circulated.

In the straw dryer, the air intake (6) is configured inside the cover body (11). For this reason, since the air in a cover main body (11) is inhaled and the air outside a processor main body (10) is not directly inhaled, it can make it difficult to receive the influence of external temperature.
Further, since the cover main body (11) is provided with the heat insulating material (13), the temperature in the cover main body (11) is not released to the outside. For this reason, the temperature inside the cover body (11) can be made less susceptible to the temperature outside the cover body (11).
Moreover, since the heater (4) is configured in the cover body (11), the heat generated by the heater (4) itself warms the air in the cover body (11), and this warmed air is retained. Further, the air is sucked again by the air intake section (6) in the cover main body (11). In this way, since the heated air is heated again by the heater (4) of the air circulation path (3), the heat generation efficiency of the heater (4) is greatly improved.
Further, since the air circulation path (3) is configured in the cover main body (11), the air circulating in the air circulation path (3) is circulated while being kept warm without being cooled by the outside air temperature. .
Further, since the blower (5) is configured in the cover main body (11), the heat generated by the fan motor unit (5b) itself of the blower (5) is also kept in the cover main body (11), and the thermal efficiency of the air circulation To improve.

Furthermore, since the cover body (11) is configured to be detachable with respect to the processor body (10), maintenance and repair of the intake section (6), the heater (4), and the blower (5) can be easily performed. I can do it.
In addition, an air circulation path (3), a blower (5), a heater (4), an exhaust part (8), and an intake part (6) are integrated on the upper surface of the processor main body (10). For this reason, the air circulation path (3), the blower (5), and the heater (4) can be kept warm only by providing one cover main body (11), and the maintenance thereof is also performed on the cover main body (11). It can be done just by attaching and detaching.
Further, the groove (15) is formed on the cover body (11) and the protrusion (14) is formed on the upper part of the processor main body (10) so that both are slidable. The cover body (11) can be easily removed by simply sliding the cover body (11).
In addition, the insect net (16) is detachably provided in the air inlet (12) of the cover body (11), so that the insect pests collected on the insect net (16) simply by removing the insect net (16) and washing. You can clean trash and garbage.

Moreover, even if the inside of the exhaust part (8) is condensed due to the middle path of the exhaust part (8) being directed downward, the condensed water is drained without accumulating in the exhaust part (8). Drained into the pipe. For this reason, the backflow prevention valve (9) can operate smoothly without malfunctioning.

As another embodiment, there is a soot dryer having the following configuration shown in FIG.
The configuration and operation other than the backflow prevention valve (9) are the same as the configurations described in the paragraphs 0018 to 0022.
The backflow prevention valve (9) includes an electromagnetic solenoid valve (9a) that is operated by an electromagnetic force provided downstream from the bending of the exhaust part (8). The electromagnetic solenoid valve (9a) is composed of a valve seat (9c) and a valve body (9b) that moves up and down on the valve seat (9c), and current flows when the blower (5) is operated. Thus, the valve body (9b) rises from the valve seat (9c) and always opens the exhaust part (8). When the blower (5) is not operated, no current flows and the valve body (9b) is lowered, the valve body (9b) is seated on the valve seat (9c), and the exhaust part (8) is closed.
In addition, the backflow prevention valve (9) is normally closed separately from the electromagnetic solenoid valve (9a), and the electromagnetic solenoid valve (9a) stops operating, and the pressure in the processor main body (10) is reduced. An emergency valve (17) that opens the exhaust part (8) only when an excessive positive pressure is applied.

Since the electromagnetic solenoid valve (9a) opens and closes the valve element (9b) with an electric current, the exhaust part (8) is always closed when the power is turned off. For this reason, malodors and pests from the drain pipe do not flow back into the processor main body (10). Further, since the exhaust section (8) is always released when the power is turned on, the air discharged from the processor main body (10) can be smoothly drained into the drain pipe. Therefore, when the electromagnetic solenoid valve (9a) is used, the malfunction of the check valve (9) is eliminated as in the conventional example.
In addition, since the emergency solenoid valve (17) is provided in the electromagnetic solenoid valve (9a), even if the electromagnetic solenoid valve (9a) fails and does not operate, the exhaust part (8) is released and closed before repairs are made. Is performed by the emergency valve (17), so that malodors and pests from the drain pipe do not flow back into the processor main body (10).

Moreover, the basket dryer of this invention is not limited to the said Example, A change is suitably possible in a claim.

It is a schematic sectional drawing which shows the air circulation inside the basket dryer of this invention. It is a perspective view at the time of attachment or detachment of the processor main body and cover main body of the basket dryer of the present invention. It is a perspective view of the front panel of the basket dryer of the present invention. (A) It is a schematic sectional drawing of the exhaust part of the soot dryer of this invention. (B) It is a schematic sectional drawing in case the backflow prevention valve of the soot dryer of this invention is an electromagnetic solenoid valve. It is a schematic sectional drawing which shows the flow of the air of the conventional drying machine. It is a schematic sectional drawing of the exhaust part of the soot dryer of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Storage container 2 Drying chamber 3 Air circulation path 4 Heater 4a Heat sink 5 Blower 5a Fan part 5b Fan motor unit part 6 Intake part 7 Branch part 8 Exhaust part 9 Backflow prevention valve 9a Electromagnetic solenoid valve 9b Valve body 9c Valve seat 10 Processor body 11 Cover body 11a Cover 11b Front panel 11c Engagement claw 11d Engagement recess 12 Inlet 12a Catch 13 Heat insulating material 14 Projection strip 15 Groove 16 Insect net 17 Emergency valve

Claims (10)

A storage container (1) for storing firewood;
A drying chamber (2) for storing the storage container (1),
An air circulation path (3) for communicating with the drying chamber and circulating the air in the drying chamber (2);
And a heater (4) for heating air in the air circulation path (3) provided on the air circulation path (3),
And a blower (5) provided in the air circulation path (3) provided on the air circulation path (3),
And an intake section (6) for taking air outside the drying chamber (2) provided on the air circulation path (3) into the drying chamber (2),
And a branch section (7) for branching the air in the air circulation path (3) provided on the air circulation path (3) into the drying chamber (2) and an exhaust section (8) described later,
And an exhaust part (8) that communicates with the branch part (7) provided on the air circulation path (3) and discharges the air flowing in from the branch part (7) to the drain pipe,
A backflow prevention valve (9) provided in the exhaust part (8), for discharging air inside the processor main body (10) to the outside and blocking air entering from the outside to the inside of the processor main body (10),
A processing machine body (10) comprising:
In the soot processing machine constructed from
A bag dryer, wherein the intake section (6) is covered with a cover body (11) provided with an intake port (12). The said dryer (4) is covered with the said cover main body (11), The straw dryer of Claim 1 characterized by the above-mentioned. The bag dryer according to claim 1 or 2, wherein the cover body (11) is provided with a heat insulating material (13). The bag dryer according to any one of claims 1 to 3, wherein the air circulation path (3) and the blower (5) are covered with the cover body (11). The processor main body (10) is provided with a ridge (14), and a groove (15) corresponding to the ridge (14) is provided in the cover main body (11), and the ridge (14). The cover main body (11) can be attached to and detached from the processing machine main body (10) in a state where the groove (15) is slid on the upper surface and disposed at the attachment position. The cocoon dryer as described in one. The air circulation path (3), the heater (4), the blower (5), the intake section (6), and the exhaust section (8) are configured to be integrated on the upper surface portion of the processor main body (10). The straw dryer according to any one of claims 1 to 5. The insect inlet (12) of the cover body (11) is provided with an insect repellent net (16) for preventing harmful insects from entering the cover body (11) from outside. The straw dryer according to any one of claims 6 to 6. The exhaust part (8) includes the backflow prevention valve (9) at the inlet of the exhaust part (8), and is configured by bending a midway path of the exhaust part (8) downward in a substantially L shape. The straw dryer according to any one of claims 1 to 7, wherein When the backflow prevention valve (9) is provided downstream from the bending of the exhaust part (8), and is composed of a valve seat (9c) and a valve body (9b), and when the blower (5) is operated The valve body (9b) rises above the valve seat (9c) to open the exhaust part (8). When the blower (5) does not operate, the valve body (9b) descends and sits on the valve seat (9c). The soot dryer according to claim 8, characterized in that it comprises an electromagnetic solenoid valve (9a) for closing the exhaust part (8). The backflow prevention valve (9) is normally closed, and when the blower (5) is in operation, the pressure in the processor main body (10) becomes positive, thereby opening the exhaust part (8), and the blower The firewood dryer according to claim 9, further comprising an emergency valve (17) that closes the exhaust (8) by its own weight when (5) does not operate.

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