JP6322460B2 - Solid fuel supply device - Google Patents

Description

  The present invention relates to a heating device for combustion for agriculture and the like, and relates to a solid fuel supply device for supplying solid fuel such as wood chips to a combustion device such as a stove or boiler.

  In the agricultural field, in general, when greenhouse cultivation is performed in an agricultural house such as a greenhouse or a plastic house, it is necessary to maintain the temperature in the house during winter or night at a temperature suitable for growing the crop. In this case, a stove, a boiler or the like using fossil fuel such as heavy oil is often used. However, the use of fossil fuels entails problems of price increases and resource depletion, and prevention of global warming due to carbon dioxide generated by the combustion of fossil fuels is a problem to be addressed immediately. For these problems, countermeasures by wind and hydropower and nuclear energy can be considered, but such countermeasures are not effective countermeasures for the demand for simple decentralized heat. Therefore, for simple thermal energy, it is necessary to promote the use of biomass energy that can be circulated and regenerated continuously.

  In recent years, a pellet boiler has been developed as a combustion apparatus using biomass energy and has been put to practical use. However, in the case of ordinary pellet fuel, it is considered that the production energy and cost spent on the pellets that are heated and molded after being chipped cannot yet find an advantage even when compared with the price of oil. In addition, wood and other fuels must be continuously supplied in preparation for the temperature drop in the morning house. For fuels with relatively large and varied shapes, such as wood chips, for example, continuous feeding by conventional screw conveyors is the focus. It is not easy because it is easily clogged, and it is easy to cause variations in the input amount, and there is an inconvenience that manpower is required. Recently, however, there has been disclosed a boiler that can burn inexpensive wood-based solid fuel in a batch system for a long period of time (see Patent Document 1). Expensive.

JP 2009-68817 A

The problem to be solved with regard to the solid fuel supply device such as wood chips is that the solid fuel such as wood chips, which are irregular in shape and larger than normal pellets, is continuously and automatically supplied to the combustion device such as boiler. And the apparatus which supplies appropriately, such as preventing dust, such as a fragment particle of solid fuel, scattering, is not proposed.
SUMMARY OF THE INVENTION An object of the present invention is to provide a solid fuel supply device that can automatically and rationally supply solid fuel, such as wood chips, which are irregular in shape and relatively large, into a combustion device.

The present invention has the following configuration in order to achieve the above object.
According to one aspect of the solid fuel supply device of the present invention, the solid fuel is inclined and connected to the communication port provided on the side surface of the combustion chamber so as to supply the solid fuel to the combustion chamber of the combustion device. Can be introduced into the combustion chamber obliquely from above through the communication port, and an inclined charging passage having a holding space capable of temporarily holding solid fuel, and the inclined so as to partition the holding space and the combustion space of the combustion chamber. A solid fuel supply device including a partition opening / closing lid that opens and closes a charging path, provided in a storage tank shape having a space in which solid fuel is stored, and a lower opening serving as an outlet for the solid fuel; A transfer cylinder for guiding the solid fuel to be transferred so as to introduce the solid fuel discharged from the lower opening of the hopper and send it to the inclined charging path side, and is inserted into the transfer cylinder. Sk A screw conveyor device including a screw, and a connection cover portion that connects the transfer cylinder and the inclined charging path so as to be continuously closed with respect to the outside, and opens and closes the inclined charging path. A partition opening / closing lid that is pivotably arranged in the inclined charging path can receive and temporarily hold solid fuel when the inclined charging path is closed, and when opening the inclined charging path In order to allow the solid fuel to be introduced into the combustion chamber obliquely from above, the front end side is provided so as to be an inclined surface that rotates downward to guide the introduction of the solid fuel.

  Moreover, according to one form of the solid fuel supply device of the present invention, the screw conveyor device may be characterized in that the screw is inserted into the transfer cylinder in a loosely fitted state. .

  Further, according to one aspect of the solid fuel supply device of the present invention, the solid fuel supply device is rotatably arranged so as to open and close the inclined charging path inside the inclined charging path above the partition opening / closing lid. When the charging passage is closed, the solid fuel is received and temporarily held, and when the fuel detection sensor detects that the solid fuel is held above a certain amount, the solid fuel is guided downward. A metering opening / closing lid that opens the inclined charging path is provided.

  Moreover, according to one form of the solid fuel supply apparatus concerning this invention, it is the edge part of the said cylinder for the transfer of the said screw conveyor apparatus, Comprising: The exit of the cylinder end arrange | positioned so that it may face the said connection cover part When the temperature sensor detects that the heater has been heated to a certain value or more, an emergency lid is provided to close the outlet of the cylindrical body end. .

  According to one aspect of the solid fuel supply device of the present invention, the solid fuel is clogged inside the hopper and above the solid fuel inlet in the transfer cylinder of the screw conveyor device. It is possible to provide a vibrating lattice material that is provided in a lattice shape and vibrates so as to prevent the light from passing therethrough.

  Further, according to one aspect of the solid fuel supply device according to the present invention, the hopper and the screw conveyor device are separated, and an upper portion of the solid fuel introduction port of the transfer cylinder, The solid fuel introduction port is in an enlarged form, and may be provided with a fuel receiving port provided so as to receive the solid fuel.

  According to the solid fuel supply device according to the present invention, the solid fuel such as wood chips having irregular shapes and large wood chips as compared with normal pellets is continuously and automatically supplied to the combustion device and dust such as debris particles of the solid fuel. There is a particularly advantageous effect that it can be appropriately introduced, for example, it can be prevented from scattering.

It is a schematic diagram which shows the form example of the supply apparatus of the solid fuel concerning this invention. It is a schematic diagram which shows the 2nd example of the supply apparatus of the solid fuel concerning this invention. It is a schematic diagram which shows the 3rd example of the supply apparatus of the solid fuel concerning this invention. It is the top view (a) and sectional drawing (b) which show the detail of the fuel receiving part concerning the screw conveyor apparatus of the form example of FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a solid fuel supply device according to the present invention will be described in detail below with reference to the accompanying drawings (FIGS. 1 to 3).
This solid fuel supply device is inclined and connected to the communication port 12 provided on the side surface of the combustion chamber 11 so as to supply the solid fuel W to the combustion chamber 11 of the combustion device 10. An inclined charging path 20 having a holding space 22 that can be charged into the combustion chamber 11 from above through the communication port 12 and can hold the solid fuel W temporarily, and inclined so as to partition the holding space 22 and the combustion space of the combustion chamber 11. A partition opening / closing lid 25 for opening and closing the charging path 20 is basically provided.

  Here, as the solid fuel W, for example, chips (wood chips) obtained by roughly crushing wood can be used. That is, the chip-like shape of the solid fuel W is, for example, an average size having a length of about 10 cm and a thickness of about 2 cm. For example, the waste fuel or thinned material is roughly crushed. Uneven things can be used. Such a solid fuel W is larger than ordinary wood pellets, and is simply coarsely crushed, so that the processing cost is low and can be supplied at low cost. On the other hand, when wood is made into chips by cutting, the sizes of the chips are uniform, but the cost tends to be high, such as requiring labor for maintenance of the cutting blade.

  A hopper 30 is provided in a storage tank shape having a space in which the solid fuel W is stored, and the lower opening 31 serves as an outlet for the solid fuel. According to the hopper 30 of the present embodiment example, the hopper 30 is provided with a slope so that the stored solid fuel W is successively discharged, and is formed in a funnel shape that squeezes toward the lower opening 31.

  A screw conveyor device 35 is a transfer cylinder that guides the solid fuel W to be transferred so that the solid fuel W discharged from the lower opening 31 of the hopper 30 is introduced and sent to the inclined charging path 20 side. 36 and a screw 37 arranged by being inserted into the transfer cylinder 36. Further, in the screw conveyor device 35 of this embodiment, the screw 37 is inserted into the transfer cylinder 36 in a loosely fitted state.

  Further, the screw conveyor device 35 of the present embodiment is provided so as to introduce the solid fuel W discharged from the lower opening 31 of the hopper 30 through the introduction port 36a and send it to the inclined charging path 20 side. In addition, it is an example of a conveyor device that is inclined and arranged so as to rise in the traveling direction. The screw conveyor device 35 can prevent the chip-shaped solid fuel W from being clogged in the transfer cylinder 36 because the screw 37 is loosely inserted into the transfer cylinder 36.

  As the screw conveyor device 35, for example, the transfer cylinder 36 can be configured by using a flexible steel pipe having a thin plate thickness, and the screw 37 can be configured by a metal material such as stainless steel. it can. According to this, the spread of fire can be prevented, and the safety of the apparatus can be improved. As the size of the screw conveyor device 35, for example, the inner diameter of the transfer cylinder 36 and the outer diameter of the screw 37 are set such that the inner diameter of the transfer cylinder 36 is 200 mm and the outer diameter of the screw 37 is 125 mm. The dimensional ratio with the diameter can be 3: 2. Thus, the screw 37 can be suitably prevented from being clogged with the chip-shaped solid fuel W because the screw 37 is inserted into the transfer cylinder 36 so as to be freely fitted and rotated. Moreover, the screw conveyor 35 is being fixed along the slope of the hopper 30, and is comprised compactly. Furthermore, the supply operation of the solid fuel W can be facilitated by placing the hopper 30 outside the room in which the combustion device is disposed.

  According to the screw conveyor device 35, since the screw 37 is loosely inserted into the transfer cylinder 36, a large eccentric gap is easily generated between the inner surface of the transfer cylinder 36 and the screw 37. It is difficult to send a certain amount of solid fuel W continuously and reliably in a certain time. However, a sensor such as a temperature sensor 80 (see FIG. 1) attached to the combustion apparatus 10 controls the length, frequency, timing, etc. of the operation time for supplying the desired amount of the solid fuel W to the combustion apparatus 10. By confirming this detection result, the solid fuel W can be appropriately supplied to the combustion chamber 11 of the combustion apparatus 10. For example, when the combustion temperature decreases, the solid fuel W may be supplied more frequently and control may be performed to increase the combustion temperature. Reference numeral 38 denotes an electric motor device which serves as a power source for rotationally driving the screw 37. For example, power can be transmitted through a chain. It should be noted that the present invention is not limited to such a chain drive, and it is needless to say that other known power sources and power transmission means can be used.

Reference numeral 40 denotes a connection cover part, which is a part that connects the transfer cylinder 36 and the inclined throwing path 20 so as to be continuous in a closed state with respect to the outside.
According to this connection cover portion, since the transfer path of the solid fuel W is not exposed to the outside, dust such as debris particles of the solid fuel W can be prevented from being scattered, and the solid fuel W can be prevented from flowing through the inclined charging path 20. Thus, it can be appropriately charged into the combustion chamber 11. That is, the screw conveyor device 35, the connection cover portion 40 connected to the screw conveyor device 35, and the inclined charging path 20 appropriately transfer the solid fuel W in the lateral direction (horizontal direction) toward the next process portion without being scattered. be able to. In addition, the installation angle of the screw conveyor apparatus 35 as a conveyor apparatus is not specifically limited, For example, the solid fuel W can be sent suitably also by the screw conveyor apparatus 35 distribute | arranged horizontally.

  A partition opening / closing lid 25 that opens and closes the inclined charging path 20 is rotatably arranged in the inclined charging path 20 and receives the solid fuel W and temporarily holds it when the inclined charging path 20 is closed. In order to allow the solid fuel W to be introduced into the combustion chamber 11 from obliquely upward when opening the inclined charging path 20, the front end side 25a is rotated downward to become an inclined surface that guides the injection of the solid fuel W. Is provided. According to the pivoting operation of the partition opening / closing lid 25, a vibration that shakes off the solid fuel W due to an impact generated when the downward pivoting operation is stopped is generated, and the solid fuel W is caught in the inclined charging path 20. And is preferably charged into the combustion chamber 11 via the inclined charging path 20. A rotation drive mechanism 27 is configured as a drive mechanism that rotates the partition opening / closing lid 25 around a rotation shaft 26 disposed below the inclined charging path 20. As this rotation drive mechanism 27, it can be comprised by the chain 27a, the sprocket 27b, and the electric motor apparatus 27c, for example. According to this, the rotation drive mechanism 27 can be configured simply and at low cost. The rotation drive mechanism 27 is not limited to this, and other known drive mechanisms such as a link mechanism constituted by a cylinder device and a link can be used.

  Inside the hopper 30 and above the solid fuel W introduction port 36a in the transfer cylinder 36 of the screw conveyor device 35, a vibration is provided in a grid so as to prevent the solid fuel W from passing and prevent it from passing therethrough. A vibrating grid member 45 is disposed. For example, the vibration lattice member 45 is placed on a shelf-like frame provided inside the hopper 30 and can be provided so as to be vibrated by a vibration motor device 46 that generates vibration. The vibrating grid material 45 may be formed by appropriately setting openings that are the meshes of the grid. For example, the vibrating grid material 45 may be about 13 cm square, and is formed by welding a metal rod having high strength and rigidity in a grid shape. be able to. According to this, it is possible to prevent the solid fuel W from being clogged in the hopper 30 by vibration and to drop the solid fuel W from the hopper 30 to the screw conveyor device 35. Can send.

Next, the embodiment of FIG. 2 will be described in detail with a focus on a configuration that is not in the embodiment of FIG.
Reference numeral 50 denotes a fuel weighing table, which is provided in front of the feed tip of the conveyor device 40 and corresponding to the connection cover 40, receives the sent solid fuel W, and measures the weight of the solid fuel W. For this purpose, the solid fuel W is provided so as to be able to be sent to the inclined charging path 20 side while rotating to the inclined charging path 20 side and measuring the weight. According to this, an appropriate amount of the solid fuel W can be introduced into the combustion chamber 11 and appropriate continuous combustion can be performed, and the amount of heat generated by the combustion can be appropriately controlled.

  Reference numeral 60 denotes a weight sensor device, which is provided to measure the weight of the solid fuel W mounted on the fuel measuring platform 50 and to send a signal so that the solid fuel W having a set required weight is supplied to the combustion chamber 11. It has been. According to this, since the continuous combustion of the solid fuel W and the amount of generated heat are controlled, the drive device can be automatically and appropriately controlled.

  In this embodiment, the fuel weighing platform 50 measures the weight of the solid fuel W and feeds it into the inclined charging path 20, so that it is intermittently charged. An amount of the solid fuel W can be suitably sent. That is, in the present embodiment, the conveyor device (screw conveyor device 35) is stopped in response to a signal from the weight sensor device 60 that is issued when the solid fuel W having a required weight set on the fuel weighing platform 50 is placed. Thereafter, the partition opening / closing lid 25 is rotated and opened so that the solid fuel W is introduced into the inclined charging path 20, and the rotation driving mechanism 52 that rotates the fuel metering base 50 and the rotation driving mechanism 52 are controlled. Drive control device (not shown). In the partition opening / closing lid 25 of the present embodiment, the rotation shaft 26 is below the inclined charging path 20 and the tip end side of the partition opening / closing lid 25 is rotated downward. Further, the rotating shaft 51 of the fuel metering base 50 is in the vicinity of the inlet 21 of the inclined charging path 20, and the solid fuel W is connected to the connecting cover portion by rotating the fuel measuring base 50 around the rotating shaft 51. It is in a form that can be introduced into the inclined introduction path 20 from 40. According to this, although it is a simple structure, a required amount of solid fuel W can be suitably sent to the combustion chamber 11 of the combustion apparatus 10 while preventing the spread of fire due to flashback and improving safety, Supply automation can be performed appropriately.

  In the drive control device (not shown) of the present embodiment, for example, with respect to the operation method applied to the screw conveyor device 35, for example, the screw 37 is normally rotated every predetermined time (for example, 5 seconds), for a predetermined time (for example, Reverse rotation every 1 second) can be operated as a routine (repeated operation). According to this, it is possible to prevent the chip-like solid fuel W from being clogged in the transfer cylinder 36 during the operation of the screw conveyor device 35 (while the screw 37 is rotating).

  Further, depending on the drive control device, a clogging prevention device such as a vibration device attached to the hopper 30 is controlled so as to prevent the chip-shaped solid fuel W from being clogged in the hopper 30. You can also. According to this, for example, the vibration device can be configured to control the hopper 30 to vibrate for a predetermined time (for example, 10 seconds) every predetermined time (for example, 30 seconds).

  As the weight sensor device 60, for example, an elastic member that receives the fuel weighing platform 50 in a state of receiving the solid fuel W so as to be able to rotate downward within a required range according to a change in weight, and an elastic force of the elastic member. In contrast, it can be constituted by a limit switch that operates when it rotates downward beyond a required position. According to this, the weight sensor device 60 can be configured simply and at low cost. As the elastic member, for example, a coil spring can be used as shown in FIG. Further, the configuration for operating the sensor function is not limited to the limit switch 62, and other known sensor devices can be used.

  In this embodiment, a fire barrier 70 is provided so as to isolate the hopper 30 side from the combustion chamber 11, and the conveyor device (screw conveyor device 35) sends the solid fuel W to the fire barrier 70. For this purpose, a communication opening 71 is provided. According to this, it is possible to prevent fire spread due to backfire and improve safety.

  Further, in the combustion chamber 11 of the combustion apparatus 10 of the present embodiment, the coarse rooster portion 13 provided with coarse eyes for holding and burning the charged solid fuel W in a state of being rich in air permeability, and the coarse thereof. A fine bonfire rooster for holding a bonfire dropped from the eye rooster 13 in a highly breathable state. According to this, it is possible to realize efficient operation of the combustion apparatus, such as improving the combustibility of the solid fuel W and preventing the generation of black smoke. In addition, 12a is a guide member, is comprised with the several rod-shaped material, can guide the solid fuel W which came out from the communicating port 12, and can be dropped suitably near the center of the combustion chamber 11. FIG.

  That is, in the present invention, it is assumed that the solid fuel W (chip fuel) has a long and narrow shape, for example, an average length of about 10 cm and a thickness of about 2 cm. In the case where the chip fuel is relatively large as described above, the shape of the coarse rooster portion 13 can be provided in a coarse lattice pattern or a net shape. According to the use of such a rough rooster portion 13, the combustion efficiency can be improved by increasing the air permeability of the combustion air, and the durability can be improved by providing a heavy structure.

  Reference numeral 90 denotes an ash box, which is disposed below the bonfire rooster part 14 of the combustion chamber 11 in order to store and take out the ash. In addition, it can also be set as the structure which drops ash to the ash box 90 effectively by providing the combustion chamber 11 with a mechanism for applying vibration when desired.

  In addition, as a configuration of the combustion apparatus of the present embodiment, an exhaust port 18 to which the intake port 15, the intake opening 16, the heat exchange flue portion 17 and the chimney 19 are connected is provided. According to the intake port 15 and the intake port 16 provided below the combustion chamber 11, fresh air can be appropriately introduced into the combustion chamber 11, and the combustibility of the solid fuel W can be improved. The heat exchange flue portion 17 extends the exhaust passage, and can efficiently transmit the amount of heat to the outside before exhaust is performed.

Below, the operation | movement which concerns on the combustion apparatus 10 of a present Example demonstrates the form example of FIG.
First, the solid fuel W is transferred to the inclined charging path 20 by the screw conveyor device 35. At this time, the partition opening / closing lid 25 is in a state of closing the inclined charging path 20, and the solid fuel W is held on the upper surface of the partition opening / closing lid 25.
The partition opening / closing lid 25 is rotated to open the inclined charging path 20, so that the solid fuel W is input into the combustion chamber 11 through the inclined charging path 20. As a result, the solid fuel W is in a state of being held and deposited in the coarse rooster portion 13. After the solid fuel W is dropped in this way, the partition opening / closing lid 25 returns to the position where the inclined charging path 20 is closed. At this time, since it is covered by the connection cover portion 40, combustion air containing smoke and flame does not leak out.

  Further, in the embodiment shown in FIG. 2, the solid fuel W is dropped onto the fuel weighing table 50 by the conveyor device 40. The screw conveyor device 35 is stopped by a signal from the weight sensor device 50 when the weight sensor device 60 can measure that the weight has been set in advance. The solid fuel W is introduced into the combustion chamber 11 through the inclined introduction path 20 by opening the partition opening / closing lid 25 in association with the rotation so that the fuel measuring platform 50 is kicked up. Is done.

Next, means for controlling the amount of heat generated by the combustion apparatus 10 according to the present invention will be described.
Reference numeral 80 denotes a temperature sensor, which is provided in this embodiment so that the temperature of the exhaust gas in the flue heat exchanger 17 can be measured as shown in FIG. It should be noted that the attachment position of the temperature sensor 80 is not limited to the state shown in FIG. As the temperature sensor 80, for example, a thermocouple can be used.

  Based on the information obtained by the temperature sensor 80, when the temperature is lower than the set temperature, the solid fuel supply mechanism and the drive control device described above make a single injection amount (weight) of the solid fuel W. A desired amount of heat generation can be generated by increasing the number of times or controlling to increase the number of times of charging by shortening the charging interval. Further, when the temperature is lower than the set temperature, it may be controlled to reduce the number of injections by reducing the injection amount (weight) of the solid fuel W once or by increasing the injection interval. Then, when the set temperature is reached, the input amount of the solid fuel W may be controlled so as to maintain the temperature. Needless to say, a known control method such as fuzzy control can be selectively used as the control method.

  In addition, the combustion state is controlled by feedback control based on detection information obtained by various sensors, such as detecting the combustion state with an optical sensor, etc., and determining the amount and timing of injection of the solid fuel W based on the detection information. Of course you can.

Next, another embodiment of the present invention will be described in detail with reference to FIG. In addition, about the structure equivalent to the structure demonstrated above, the same code | symbol is attached | subjected and description is abbreviate | omitted.
Reference numeral 55 denotes a weighing opening / closing lid, which is rotatably arranged so as to open and close the inclined charging path 20 above the partition opening / closing lid 25, and when the inclined charging path 20 is closed. The solid fuel W is received and temporarily held, and when the fuel detection sensor 56 detects that the solid fuel W is held in a certain amount or more, the inclined charging path 20 is opened so as to guide the solid fuel W downward. It is provided as follows. Reference numeral 55a denotes a rotation driving mechanism for the weighing opening / closing lid, which is constituted by, for example, an electric motor, a chain, or the like, similar to the rotation driving mechanism 27 described above.

  The fuel detection sensor 56 according to the present embodiment is disposed upstream of the metering opening / closing lid 55 facing the inside of the inclined charging path 20 and detects the volume of the solid fuel W blocked by the metering opening / closing lid 55. Is output. As the fuel detection sensor 56, an optical sensor that determines the presence or absence of light transmission can be used.

  According to this, when the fuel sensor 56 detects that the solid fuel W has been held in a certain amount or more, the supply of the solid fuel by the screw conveyor device 35 is controlled to be temporarily stopped. When it is determined that it is necessary to input the solid fuel W into the combustion chamber 11 by detecting the combustion temperature or the like, the metering opening / closing lid 55 is controlled to open. Then, after the solid fuel W is received by the partition opening / closing lid 25, the metering opening / closing lid 55 is closed, and then the partition opening / closing lid 25 is opened and the solid fuel W is introduced into the combustion chamber 11. Further, after being put into the combustion chamber 11 in such a manner, the partition opening / closing lid 25 is controlled to close as soon as possible. The above operation is controlled by a control device (not shown) and repeated as appropriate, so that a required amount of solid fuel W can be intermittently charged into the combustion chamber 11. As the control device, an existing control mechanism such as the configuration described above can be selectively used as appropriate.

  According to the configuration such as the metering opening / closing lid 55 and the fuel detection sensor 56, the required amount of solid fuel W can be intermittently supplied, and the inclined charging path 20 can be opened / closed together with the partition opening / closing lid 25. According to this, since the inclined charging path 20 is closed by at least the opening / closing lid of either the metering opening / closing lid 55 or the partition opening / closing lid 25, it is possible to effectively prevent a fire due to backfire, Safety can be increased.

  Reference numeral 65 denotes an emergency lid, which is arranged to open and close the outlet 36b at the end of the cylinder end that is arranged to face the connection cover 40 at the end of the transfer cylinder 36 of the screw conveyor device 35. When the temperature sensor 66 detects that the inclined charging path 20 has been heated as described above, the outlet 36b at the end of the cylinder is closed. The temperature sensor 66 according to the present embodiment is disposed on the lower side in the vicinity of the outlet 36b at the end of the cylinder so as to face the inside of the inclined charging path 20.

  An emergency lid stopper mechanism 65a is provided so that the stopper function is released upon receiving a signal output when the temperature sensor 66 detects an abnormally high temperature, and the emergency lid 65 closes the outlet 36b at the end of the cylinder. ing. In this embodiment, the emergency lid stopper mechanism 65a always holds the emergency lid 65 suspended upward by magnetism. In an emergency, the emergency lid stopper mechanism 65a is demagnetized and the emergency lid 65 rotates downward. By doing so, it is a mechanism that covers and closes the outlet 36b at the end of the cylindrical body. According to the configuration of the emergency lid 65 and the temperature sensor 66, it is possible to effectively prevent a fire due to backfire in an emergency, and to improve the safety of the apparatus.

  Further, when the emergency lid 65 of the present embodiment rotates downward and closes the outlet 36b at the end of the cylinder, the screw 37 rotates in the reverse direction, and the solid fuel W filled in the transfer cylinder 36 is obtained. Is controlled so as to be discharged downward and sent. According to this, it can divide | segment so that solid fuel W may exist continuously via the screw conveyor apparatus 35, the fire by backfire can be prevented effectively, and the safety | security of an apparatus can be improved. .

  In this embodiment, the hopper 30A and the screw conveyor device 35 are separated from each other, and the solid fuel W introduction port 36a is provided above the solid fuel W introduction port 36a of the transfer cylinder 36. The fuel receiving port 33 is provided so as to receive the solid fuel W in an enlarged form.

  According to the fuel receiving port 33, it is possible to receive the solid fuel W that has fallen from the hopper 30A, which is a separated fuel storage tank, and to receive the solid fuel W that has been reversed by reversing the screw 37. That is, the fuel receiving port 33 constitutes a space in which the solid fuel W can be prevented from overflowing from the screw conveyor device 35 and scattering to the surroundings and the backflow of the solid fuel W can be allowed. Further, since the hopper 30A and the screw conveyor device 35 are separated from each other, it is difficult for fire to be transmitted, it is possible to effectively prevent the expansion of the fire due to backfire, and the safety of the device can be improved.

In addition, 11a is a fireproof glass window, and is installed in the wall part of the combustion chamber 11 so that a combustion condition can be monitored.
In addition, by using a fire-resistant metal material such as steel for each structure including the hopper 30A and the screw conveyor device 35, it is possible to effectively prevent a fire due to backfire and increase the safety of the device. it can.

  As described above, the present invention has been described in various ways with preferred embodiments. However, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 10 Combustion apparatus 11 Combustion chamber 11a Refractory glass window 12 Communication port 12a Guide member 13 Rooster part 14 of coarse eyes Rooster part 15 for bonfire Intake port 16 Intake opening 17 Flue heat exchange part 18 Exhaust port 19 Chimney 20 Inclined inlet 21 Inlet 22 in the inclined charging path 22 Holding space 25 Partition opening / closing lid 25a Tip side 26 Turning shaft 27 Turning drive mechanism 27a Chain 27b Sprocket 27c Electric motor device 30 Hopper 30A Hopper 31 Lower opening 33 Fuel receiving portion 35 Screw conveyor device 36 Transfer Cylinder 36a inlet 36b outlet of cylinder end 37 screw 38 electric motor device 40 connection cover 45 vibration grid material 46 vibration generating motor device 50 fuel metering base 51 pivot shaft 52 pivot drive mechanism 55 metering opening / closing lid 55a metering Opening / closing lid rotation drive mechanism 56 Fuel detection sensor 60 Weight sensor Sir apparatus 65 very lid 65a very lid of the stopper mechanism 66 Temperature sensor 70 partition wall 71 communicating opening for fire 80 Temperature sensor 90 ash box W solid fuel

Claims (3)

In order to supply the solid fuel to the combustion chamber of the combustion apparatus, it is connected to the communication port provided on the side surface of the combustion chamber at an angle, and the solid fuel can be introduced into the combustion chamber through the communication port obliquely from above. And an inclined charging path having a holding space capable of temporarily holding the solid fuel, and a partition opening / closing lid for opening and closing the inclined charging path so as to partition the holding space and the combustion space of the combustion chamber. Because
A hopper provided in the shape of a storage tank having a space for storing solid fuel and having a lower opening serving as an outlet for the solid fuel;
A transfer cylinder for guiding the solid fuel to be transferred so as to introduce the solid fuel discharged from the lower opening of the hopper and send it to the inclined charging path side, and is inserted into the transfer cylinder. A screw conveyor device comprising:
A connecting cover portion for connecting the transfer cylinder and the inclined charging path so as to continue in a closed state with respect to the outside;
A partition opening / closing lid that opens and closes the inclined charging path is rotatably arranged in the inclined charging path, and can receive and hold solid fuel temporarily when the inclined charging path is closed. When opening the path, so that the solid fuel can be thrown into the combustion chamber obliquely from above, the tip side is provided to be an inclined surface that turns downward and guides the solid fuel to be introduced ,
The temperature of the end of the transfer cylinder of the screw conveyor device that is arranged to open and close the outlet of the cylinder end that is arranged to face the connection cover, and is heated to a predetermined value or more. A solid fuel supply device comprising an emergency lid for closing the outlet of the cylindrical body when detected by a sensor . In order to supply the solid fuel to the combustion chamber of the combustion apparatus, it is connected to the communication port provided on the side surface of the combustion chamber at an angle, and the solid fuel can be introduced into the combustion chamber through the communication port obliquely from above. And an inclined charging path having a holding space capable of temporarily holding the solid fuel, and a partition opening / closing lid for opening and closing the inclined charging path so as to partition the holding space and the combustion space of the combustion chamber. Because
A hopper provided in the shape of a storage tank having a space for storing solid fuel and having a lower opening serving as an outlet for the solid fuel;
A transfer cylinder for guiding the solid fuel to be transferred so as to introduce the solid fuel discharged from the lower opening of the hopper and send it to the inclined charging path side, and is inserted into the transfer cylinder. A screw conveyor device comprising:
A connecting cover portion for connecting the transfer cylinder and the inclined charging path so as to continue in a closed state with respect to the outside;
A partition opening / closing lid that opens and closes the inclined charging path is rotatably arranged in the inclined charging path, and can receive and hold solid fuel temporarily when the inclined charging path is closed. When opening the path, so that the solid fuel can be thrown into the combustion chamber obliquely from above, the tip side is provided to be an inclined surface that turns downward and guides the solid fuel to be introduced ,
An oscillating grid that vibrates inside the hopper and is provided in a grid so as to prevent clogging of the solid fuel and pass above the solid fuel inlet in the transfer cylinder of the screw conveyor device. A solid fuel supply device characterized in that a material is arranged . In order to supply the solid fuel to the combustion chamber of the combustion apparatus, it is connected to the communication port provided on the side surface of the combustion chamber at an angle, and the solid fuel can be introduced into the combustion chamber through the communication port obliquely from above. And an inclined charging path having a holding space capable of temporarily holding the solid fuel, and a partition opening / closing lid for opening and closing the inclined charging path so as to partition the holding space and the combustion space of the combustion chamber. Because
A hopper provided in the shape of a storage tank having a space for storing solid fuel and having a lower opening serving as an outlet for the solid fuel;
A transfer cylinder for guiding the solid fuel to be transferred so as to introduce the solid fuel discharged from the lower opening of the hopper and send it to the inclined charging path side, and is inserted into the transfer cylinder. A screw conveyor device comprising:
A connecting cover portion for connecting the transfer cylinder and the inclined charging path so as to continue in a closed state with respect to the outside;
A partition opening / closing lid that opens and closes the inclined charging path is rotatably arranged in the inclined charging path, and can receive and hold solid fuel temporarily when the inclined charging path is closed. When opening the path, so that the solid fuel can be thrown into the combustion chamber obliquely from above, the tip side is provided to be an inclined surface that turns downward and guides the solid fuel to be introduced ,
The hopper and the screw conveyor device are separated from each other, and the solid fuel inlet is expanded above the solid fuel inlet of the transfer cylinder and receives the solid fuel. A solid fuel supply device comprising a fuel receiving port provided so as to be able to perform the above operation .

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