JP7430496B2 - Loading device for silo - Google Patents

Description

The present invention relates to a loading device for a silo.

For example, in cold regions, silos are installed outdoors to store wood pellets used as a heat source for heating devices. Generally, such a silo includes an input port formed at the upper end and an openable and closable outlet formed at the lower end. Thereby, the pellets are stored in the silo by being input from the input port, and are taken out to the outside by opening the output port (see, for example, Patent Document 1).

When loading pellets into the above silo, a crane lifts the flexible container bag containing a predetermined amount of pellets to just above the silo's input port, and in this state, the pellets inside the flexible container bag are loaded from the input port into the silo. A dropping method is used in which the material is dropped into the interior.

Utility model registration No. 3157953

In addition to the above-mentioned drop-in method, there is an air conveyance method as a method for introducing pellets into the silo. In the air conveyance method, for example, the blast pipe of an air conveyance device installed on the ground side is connected to the input port of the silo with a hose, and the pellets introduced into the air conveyance device are transferred by air to the silo through the hose. This is a method of putting it inside. However, in this case, it is necessary to provide a charging pipe to connect the hose to the upper end of the silo, so in the case of a silo that uses the conventional drop charging method, pellets are charged into the silo using an air conveyance method. I can't.

The present invention has been made in view of these circumstances, and it is possible to temporarily introduce stored materials into the silo using an air conveyance method even if the stored materials are introduced into the silo using a drop-in method. With the goal.

(1) The present invention provides a mounting body that is removably attached to a silo that is placed on the upper end side of the silo and has an input port formed at the upper end into which stored materials can be dropped. A conveying pipe is provided on the mounting body so as to communicate between the inside and outside of the silo through the input port, and a conveying pipe for conveying the stored material by air conveying is connected to an open end disposed outside the silo. The silo charging device includes a charging path, and a protrusion provided on the mounting body and extending vertically in the silo.

According to the present invention, a mounting body is mounted on the top end of a silo having an input port formed at the top end into which stored materials can be dropped, and the mounting body is provided with a By connecting a transfer pipe that transports stored materials by air transport to the open end of the input path section located outside the silo, the stored materials transported by air transport can be thrown into the silo from the input path section. be able to. Furthermore, by removing the attachment body from the silo, the stored material can be returned to a state where it can be dropped into the silo from the input port. As a result, even in the case of a silo in which stored materials are introduced using the drop-in method, the stored materials can be temporarily introduced into the silo using the air conveyance method.

In addition, when the mounting body is placed on the upper end side of the silo, the protruding body provided on the mounting body is arranged to extend vertically within the silo. Even if the mounting body tends to tilt with respect to the upper end of the silo due to the weight, the protrusion comes into contact with the inner surface of the inlet, thereby preventing the mounting body from tilting. Thereby, it is possible to suppress the attachment body from falling off from the upper end side of the silo.

(2) It is preferable that the input path portion has a vertical path portion that is arranged to extend in the vertical direction within the silo, and that the vertical path portion also serves as the protrusion.
In this case, since the vertical path portion of the charging path portion also serves as a protruding body, the number of parts is reduced and a cost-effective silo charging device can be constructed.

(3) At least three of the protrusions are provided on the attachment body, and the at least three protrusions are preferably arranged in a triangular shape with each protrusion as an apex in plan view.
In this case, when the silo loading device is not in use, the device can be stored in a stable state by grounding the lower ends of at least three protruding bodies and placing the mounting body on the ground or the like.

(4) It is preferable that the protruding body is provided on the mounting body in a form that allows it to be easily inserted into the inlet.
In this case, when the mounting body is placed on the upper end side of the silo, the protruding body can be easily inserted into the input port.

According to the present invention, even in the case of a silo in which stored materials are introduced by the drop-in method, the stored materials can be temporarily introduced into the silo using the air conveyance method.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of the silo loading system according to the first embodiment of the present invention, showing a state in which pellets are being loaded into the silo using a drop loading method. It is a side view showing a loading system for a silo, and shows a state in which pellets are being loaded into a silo using an air conveyance method. FIG. 3 is a plan view of the silo loading device seen from above. 4 is a sectional view taken along the line II in FIG. 3. FIG. 4 is a sectional view taken along the line II-II in FIG. 3. FIG. FIG. 3 is a plan view of the silo loading device seen from below. It is a side view which shows the 1st modification of a restriction means. It is a side view which shows the 2nd modification of a restriction means. It is a side view which shows the 3rd modification of a restriction means. A fourth modification of the regulating means is shown, in which (a) is a side view and (b) is a plan view seen from below. It is a side view showing the loading device for silos concerning a 2nd embodiment of the present invention. 12 is a view taken in the direction of arrow III in FIG. 11. FIG. FIG. 12 is a plan view of the silo charging device of FIG. 11 viewed from below.

Embodiments of the present invention will be described below with reference to the drawings. Note that at least some of the embodiments (including modifications) described below may be combined as desired.
[First embodiment]
<Feeding system for silos>
FIG. 1 is a side view showing a silo loading system including a silo loading device 1 and an air conveyance device 2 according to a first embodiment of the present invention. In FIG. 1, the silo charging system of this embodiment charges and stores wood pellets (stored material) used as a heat source for a heating device (not shown) in a silo 3 installed outdoors in a cold region. Occasionally used.

The silo 3 is formed into a vertically elongated cylindrical shape, and is supported at a predetermined height from the ground by a lattice-shaped pedestal 4 installed on the ground. The silo 3 has a cylindrical portion 3a at its upper end. An input port 3b for dropping pellets is formed at the upper end of the cylindrical portion 3a. That is, the silo 3 is one into which pellets are thrown in by a drop-throwing method.

The lower part of the silo 3 is formed into a conical cylindrical shape, and the lower end of the silo 3 is formed with an openable and closable outlet 3c. Thereby, the silo 3 stores the pellets input into the interior through the input port 3b, and by opening the output port 3c, the pellets stored inside can be taken out to the outside.

A predetermined amount of pellets to be fed into the silo 3 are stored in a plurality of flexible container bags 5. The flexible container bag 5 includes a container bag body 5a in which pellets are accommodated, and a hook portion 5b fixed to the container bag body 5a. The container bag main body 5a is formed in a substantially rectangular parallelepiped shape, and a discharge port 5c is provided on the bottom surface of the container bag main body 5a so as to be openable and closable.

The plurality of flexible container bags 5 are loaded onto the loading platform 6a of the truck 6 and transported to the installation location of the silo 3. A crane 7 is mounted on the truck 6 and includes a multistage boom 7a and a hanging hook 7b provided at the tip of the boom 7a. The crane 7 is capable of lifting the flexible container bag 5 by hooking the hook portion 5b of the flexible container bag 5 onto the hanging hook 7b.

As a result, as shown in FIG. 1, the flexible container bag 5 is lifted by the crane 7 of the truck 6 to just above the input port 3b of the silo 3, and in that state, the discharge port 5c of the flexible container bag 5 is opened. The pellets in the flexible container bag 5 are dropped into the silo 3 through the input port 3b.

<Silo loading device>
FIG. 2 is a side view of the silo loading system, showing a state in which the silo loading device 1 is used. In FIG. 2, a silo charging device 1 is removably installed in a cylindrical portion 3a of a silo 3, and allows pellets to be charged into the silo 3 using an air conveyance method.

In the air conveyance method using the silo loading device 1, for example, a connecting hose (conveying pipe) 8 extending from a blower pipe (not shown) of the air conveying device 2 mounted on the loading platform 6a of the truck 6 is connected to the silo loading device 1. While connected to the charging pipe 12 (described later) of the device 1, the silo charging device 1 is lifted up by the crane 7 and installed in the cylindrical portion 3a of the silo 3.

In the silo feeding device 1, the feeding end of the air conveyance path is located at the feeding port 3b in order to prevent pellets from being thrown into the silo 3 due to the connection hose 8 becoming unruly and coming off the feeding port 3b. It has the function of maintaining the state. The air conveyance path is constituted by a connection hose 8 and an input path section (described later). The input end of the air conveyance path is the other end of the input path section opposite to the one end to which the connection hose 8 is connected. The expression that the input end of the air conveyance path is "located at the input port" also means that the input end of the air conveyance path is located in an area above or below the input port 3b of the silo 3. In addition, "holding" the input end of the air conveyance path at the input port 3b means that the input end of the air conveyance path is positioned at the input port 3b of the silo 3, regardless of where the air conveyance path is fixed. It means to keep it in that state.

Next, the flexible container bag 5 is lifted up by the crane 7 and moved to just above the hopper (not shown) of the air conveyance device 2, and the discharge port 5c of the flexible container bag 5 is opened. As a result, by driving the air conveyance device 2, the pellets in the flexible container bag 5 are introduced into the air conveyance device 2, and then introduced into the silo 3 via the connection hose 8 and the silo input device 1 by air conveyance. be done.

FIG. 3 is a plan view of the silo loading device 1 viewed from above. FIG. 4 is a sectional view taken along the line II in FIG. 3. In FIGS. 3 and 4, the silo charging device 1 includes a mounting body 11, a charging pipe (input path section) 12, a discharge pipe (discharge path section) 13, a blower 14, and a regulating means 15. There is. Note that in FIG. 4, illustration of the discharge pipe 13 and the blower 14 is omitted.

<Mounting body>
The attachment body 11 holds the input channel section (in this embodiment, the input pipe 12) in a state where it is located on the upper end side of the silo 3. The attachment body 11 includes a disk-shaped attachment body 111 and a rectangular support base 112 fixed to the upper surface of the attachment body 111. The outer diameter of the attachment body 111 is larger than the outer diameter of the cylindrical portion 3a of the silo 3. Thereby, the attachment main body 111 is placed on the upper end surface of the cylindrical portion 3a (the edge of the input port 3b), thereby closing the input port 3b. As described above, the mounting body 11 is placed on the upper end side of the silo 3.

Here, the "upper end side" of the silo 3 refers not only to the upper end of the silo 3 (the part above the vertical center of the silo) but also to the pedestal 4 etc. arranged around the upper end of the silo 3. This also includes a separate member on the silo 3 side. Moreover, "placing" on the upper end side of the silo 3 means that at least a part of the load of the mounting body 11 is placed on the upper end side of the silo 3, and includes direct mounting and indirect mounting.

"Directly" in direct placement means that the mounting body 11 contacts the upper end side of the silo 3 (the upper end of the silo 3 or another member on the silo 3 side) without using any other members. "Indirect" in indirect mounting means that at least a part of the mounting body 11 is in contact with the upper end side of the silo 3 via another member, and a part of the mounting body 11 is in contact with the upper end side of the silo 3. This also includes cases where other parts of the mounting body 11 come into contact with the upper end side of the silo 3 via other members.
In this embodiment, the attachment main body 111 is placed directly on the upper end surface of the cylindrical portion 3a without being fixed to the cylindrical portion 3a, thereby being removably attached to the cylindrical portion 3a. As a result, the mounting body 11 is placed directly on the upper end of the silo 3 with its entire load placed on the upper end.

A plurality of intake holes 115 are formed in the attachment main body 111 so as to penetrate in the vertical direction. These intake holes 115 have the function of drawing air from the atmosphere into the silo 3 when the conveyance air introduced into the silo 3 together with the pellets is forcibly discharged outside the silo 3 by the blower 14, as will be described later. have. Thereby, it is possible to suppress the inside of the silo 3 from becoming excessively negative pressure.

<Input tube>
The input pipe 12 is connected to the connecting hose 8 and guides the pellets air-transported by the connecting hose 8 into the silo 3. The input pipe 12 includes a vertical pipe part 12a extending in the vertical direction, an elbow pipe 12b having one end connected to the upper end of the vertical pipe part 12a and bent, and a horizontal pipe part 12b connected to the other end of the elbow pipe 12b. A horizontal tube portion 12c is provided. In this embodiment, the vertical tube portion 12a, the elbow tube 12b, and the horizontal tube portion 12c are all formed of circular tube members.

The upper end portion of the vertical tube portion 12a passes through a first attachment hole 113 formed in the attachment body 111 and is fixed to the attachment body 111. As a result, when the mounting body 111 is placed on the upper end surface of the cylindrical portion 3a, the portion of the vertical tube portion 12a that protrudes below the mounting body 111 is arranged to extend in the vertical direction within the silo 3, and the mounting The elbow pipe 12b and the horizontal pipe portion 12c located above the main body 111 are arranged outside the silo 3. Therefore, the input pipe 12 is provided on the attachment main body 111 so as to communicate between the inside and outside of the silo 3 via the input port 3b.

The open end 12c1 of the horizontal pipe portion 12c is a connection port to which the connection hose 8 is connected. As a result, the pellets air-transported by the connecting hose 8 pass through the horizontal pipe section 12c, the elbow pipe 12b, and the vertical pipe section 12a, and are thrown into the silo 3. At this time, the pellets are separated from the conveying air by inertial force (gravity). Therefore, the silo charging device 1 also has the function of a separation device that separates pellets and conveyance air.

The vertical tube portion 12a of this embodiment is a metal steel tube, and its longitudinal intermediate portion is fixed to the attachment main body 111. As a result, the relative position of the portion of the vertical tube portion 12a that protrudes below the mounting body 11 relative to the mounting body 11 does not move. Therefore, the input end of the air conveyance path (the lower end of the vertical tube portion 12a) is held within the silo 3. Note that even if the vertical tube section 12a is a flexible tube, the input port 3b of the silo 3 is covered by the mounting body 11, so even if the lower end of the vertical tube section 12a bends and moves, the air conveyance path will not be charged. The end is held in position within the silo 3.

<Exhaust pipe>
FIG. 5 is a sectional view taken along the line II-II in FIG. 3. 3 and 5, the discharge pipe 13 includes a vertical pipe portion 13a extending in the vertical direction, and a horizontal pipe portion 13b projecting horizontally from the upper end of the vertical pipe portion 13a. The vertical tube part 13a of this embodiment is formed in a box shape, and is fixed while being placed on the upper surface of the attachment main body 111.

A communication port 13a1 communicating with the horizontal tube portion 13b is formed at the upper end of one side of the vertical tube portion 13a (the side facing toward the center of the attachment body 111). An open end portion 13a2 is formed at the lower end of the vertical tube portion 13a, and a second attachment hole 114 is formed in the attachment body 111 directly below the open end portion 13a2.

As a result, when the attachment body 111 is placed on the upper end surface of the cylindrical portion 3a, the open end 13a2 of the vertical tube portion 13a passes through the second attachment hole 114 of the attachment body 111 to the input port 3b of the cylindrical portion 3a. The open end portion 13b1 of the horizontal pipe portion 13b is arranged outside the silo 3. Therefore, the discharge pipe 13 is provided in the mounting body 111 so as to communicate between the inside and outside of the silo 3 via the input port 3b.

<Blower>
The blower 14 forcibly discharges the conveying air, which has been introduced into the silo 3 from the input pipe 12 together with the pellets and has been separated as described above, out of the silo 3 through the discharge pipe 13. The blower 14 of this embodiment is placed and fixed on the upper surface of the support base 112 of the mounting body 11, and is placed outside the silo 3 with the mounting body 111 placed on the upper end surface of the cylindrical portion 3a. be done.

The blower 14 has an intake port 14a that sucks in conveyance air, and an exhaust port 14b that discharges the conveyance air to the outside. The intake port 14a of the blower 14 is connected to an open end (one end) 13b1 of the horizontal pipe portion 13b of the discharge pipe 13 via, for example, a pipe joint 17. Note that in FIG. 3, illustration of the pipe joint 17 is omitted.

A bag filter (not shown) is connected to the exhaust port 14b of the blower 14 for removing dust and the like contained in the conveying air exhausted from the exhaust port 14b. As a result, the conveying air that has been injected into the silo 3 together with the pellets from the input pipe 12 and separated is sucked by the blower 14 through the discharge pipe 13 and the pipe fitting 17, and is forced out of the silo 3 through the bag filter. is discharged.

With the above configuration, in the silo 3 in which the input port 3b into which pellets can be dropped is formed in the upper end (cylindrical part 3a), the mounting body 11 (mounting body 111) is placed on the upper end surface of the cylinder part 3a. In this state, the connection hose 8 for transporting the pellets by air transport is connected to the open end 12c1 of the input pipe 12 provided on the mounting body 11, which is disposed outside the silo 3, so that the pellets are transported by air transport. Pellets can be introduced into the silo 3 from the input pipe 12. Moreover, by removing the attachment body 11 from the silo 3, pellets can be returned to a state where they can be dropped into the silo 3 from the input port 3b. Thereby, even in the case of a silo 3 in which pellets are introduced by the drop-in method, the pellets can be temporarily introduced into the silo 3 by the air conveyance method.

Furthermore, since the mounting body 11 is placed directly on the upper end surface of the cylindrical portion 3a, it is easier to attach the mounting body 11 to the silo 3 than when the mounting body 11 is placed indirectly on the upper end surface of the cylindrical portion 3a. Work can be done easily.
Moreover, since the attachment body 11 is placed without being fixed on the upper end surface of the cylindrical portion 3a, the work of attaching the attachment body 11 to the silo 3 can be performed even more easily.

Furthermore, if the drop loading method is used, for example, when a single worker is loading pellets in a plurality of flexible container bags 5 into the silo 3, the operator operates the crane 7 on the ground to load pellets into each flexible container bag 5. While lifting the container to just above the input port 3b of the silo 3, climb up to the upper end of the silo 3 and open the discharge port 5c of the flexible container bag 5 (see FIG. 1). Thereafter, the worker descends from the silo 3 to the ground, operates the crane 7 again, and lowers the flexible container bag 5 from which the pellets have been discharged to the ground. Therefore, in the drop-in method, the number of times the worker moves up and down the silo 3 is the same number of times as the number of flexible container bags 5.

On the other hand, when the air conveyance method using the silo loading device 1 of this embodiment is used, the number of times the silo 3 is climbed up and down is the same as when the silo loading device 1 is first installed at the upper end of the silo 3. It is only necessary to remove the silo charging device 1 twice from the upper end of the silo 3 after all the pellets in the flexible container bag 5 are air-transported to the silo 3. Therefore, when one worker is loading three or more pellets in the flexible container bag 5 into the silo 3, using the air conveyance method using the silo loading device 1 is better than using the drop loading method. Since the number of times of climbing up and down the silo 3 can be reduced, the burden on the worker can be reduced.

Further, a blower 14 for forcibly discharging the conveying air introduced into the silo 3 together with the pellets out of the silo 3 is fixed to the mounting body 11 and is attached to one end of a discharge pipe 13 provided on the mounting body 11. (open end 13b1). As a result, the silo charging device 1 can be installed in the silo 3 by simply attaching the mounting body 11 provided with the blower 14 and the discharge pipe 13 to the upper end of the silo 3. There is no need to connect with Therefore, the number of man-hours required for installing the silo charging device 1 in the silo 3 can be reduced. Furthermore, when installing the silo charging device 1 in the silo 3, only the connection hose 8 is connected to the silo charging device 1 (charging pipe 12), and no hose is connected to the discharge pipe 13, so the crane 7 It is easy to balance the feeding device 1 in a lifted state.

In addition, the blower 14 discharges the conveying air inside the silo 3 to the outside of the silo 3 through the discharge pipe 13, creating a negative pressure inside the silo 3. This negative pressure causes the mounting body 11 to move toward the upper end of the silo 3. (the upper end surface of the cylindrical portion 3a). Thereby, the attachment body 11 can be prevented from falling off from the upper end of the silo 3.

That is, unless the inside of the silo 3 is made to have a negative pressure by the blower 14, the mounting body 11, which is not fixed on the upper end surface of the cylindrical part 3a, will tilt due to the blowing force (positive pressure) of the air inside the silo 3. Although the mounting body 11 may fall down from the upper end surface of the cylindrical portion 3a, by creating a negative pressure inside the silo 3, it is possible to prevent the mounting body 11 from falling down. Furthermore, when the mounting body 11 is fixed to the upper end of the silo 3 by means of a fixing means, the constituent members of the fixing means may be pulled by the above-mentioned blow-up force and come off or break, causing the mounting body 11 to fall down. Even in such a case, by creating a negative pressure inside the silo 3, it is possible to prevent the attachment body 11 from falling.

Furthermore, since the blower 14 is placed outside the silo 3 while the mounting body 11 is attached to the upper end of the silo 3, pellets thrown into the silo 3 are prevented from entering the blower 14. Can be done. In addition, the conveying air introduced into the silo 3 together with the pellets is sucked into the intake port 14a of the blower 14 arranged outside the silo 3 via the discharge pipe 13, and is discharged from the exhaust port 14b of the blower 14 to the outside of the silo 3. Therefore, the function of discharging the conveying air by the blower 14 is not impaired.

<Regulatory measures>
FIG. 6 is a plan view of the silo charging device 1 viewed from below. In FIGS. 4 and 6, the restricting means 15 has a function of restricting horizontal movement of the mounting body 111 placed on the upper end surface of the cylindrical portion 3a. The regulating means 15 of this embodiment is composed of three protrusions 151, 152, 153 that protrude downward from the lower surface of the attachment main body 111. A portion of the tube portion 12a below the lower surface of the attachment body 111 also serves as the tube portion 12a. The remaining two protrusions 151 and 152 are made of cylindrical members having a diameter smaller than that of the vertical tube portion 12a, and the upper ends of each protrusions 151 and 152 are fixed to the lower surface of the attachment body 111.

The three protrusions 151 to 153 are all formed to extend straight in the vertical direction, and the lengths of the protrusions 151 to 153 in the vertical direction are all the same length L1. Each of the protrusions 151 to 153 is arranged on the lower surface of the mounting body 111 so as to be disposed close to the inner surface of the input port 3b within the cylindrical portion 3a with the mounting body 111 placed on the upper end surface of the cylindrical portion 3a. are placed on the outer periphery of each. Further, the three protrusions 151 to 153 are arranged in a triangular shape with each protrusion 151, 152, 153 as the apex in plan view.

The lower ends of the protrusions 151 and 152 are connected and reinforced by a horizontally extending reinforcing member 154A. Similarly, the lower ends of the protrusions 152, 153 and the lower ends of the protrusions 153, 151 are connected and reinforced by horizontally extending reinforcing members 154B, 154C, respectively.

With the above configuration, when the mounting body 111 placed on the upper end surface of the cylindrical portion 3a attempts to move in the horizontal direction, any of the protrusions 151 to 153 of the regulating means 15 will come into contact with the inner surface of the input port 3b. Thus, movement of the attachment body 111 in the horizontal direction is restricted. Furthermore, even if the mounting body 111 tends to tilt with respect to the upper end surface of the cylindrical portion 3a due to the weight of the connection hose 8 connected to the input pipe 12, one of the protrusions 151 to 153 will come into contact with the inner surface of the input port 3b. This makes it possible to prevent the mounting body 111 from tilting. Thereby, the attachment body 11 can be prevented from falling off from the upper end of the silo 3.

Furthermore, since the vertical tube portion 12a of the charging pipe 12 also serves as the protruding body 153, the number of parts is reduced, and the silo charging device 1 can be constructed at low cost.
Furthermore, when the silo loading device 1 is not in use, the lower ends of the three protruding bodies 151 to 153 arranged in a triangular shape in plan view as described above are grounded and the mounting body 11 is placed on the ground or the like. The silo charging device 1 can be stored in a stable state.

<Variations of regulatory measures>
FIG. 7 is a side view showing a first modification of the regulating means 15. In FIG. 7, the regulating means 15 of this modification is constituted by a plurality of protrusions 155 extending in the vertical direction. Each protruding body 155 is the same member as the protruding bodies 151 and 152 of the above embodiment, but is provided on the attachment main body 111 in a form that is easily inserted into the input port 3b of the cylindrical portion 3a.

Here, in the present invention, the "form that is easy to insert" of the protrusion means that when the protrusion is inserted from the input port, the side surface portion of the protrusion that faces closest to the inner peripheral edge of the input port is This refers to a configuration in which the inner peripheral edge is moved away from the inner peripheral edge toward the center of the input port in a continuous or stepwise manner as it goes from an arbitrary position above the lower end toward the lower end.

In this modification, each protrusion 155 is attached to the mounting body 111 in a state where the side surface thereof is inclined so as to continuously move away from the inner peripheral edge of the input port 3b toward the center line C side of the input port 3b as it goes from the upper end to the lower end. is fixed. Thereby, when placing the attachment main body 111 on the upper end surface of the cylindrical portion 3a, the plurality of protrusions 155 can be easily inserted into the input port 3b.

FIG. 8 is a side view showing a second modification of the regulating means 15. In FIG. 8, the regulating means 15 of this modification is constituted by a single flat plate-shaped protrusion 156 extending in the vertical and horizontal directions. This protrusion 156 is also provided on the attachment main body 111 in a form that allows it to be easily inserted into the input port 3b of the cylindrical portion 3a.

Specifically, the upper surface 156a of the protrusion 156 is fixed to the lower surface of the mounting body 111, and the side surfaces 156b on both sides of the protrusion 156 in the horizontal direction (the side surfaces closest to the inner peripheral edge of the input port 3b) ) is formed so as to be inclined so as to continuously move away from the inner peripheral edge of the input port 3b toward the center line C as it goes from the upper end to the lower end. Thereby, also in this modification, when mounting main body 111 is placed on the upper end surface of cylindrical portion 3a, protrusion 156 can be easily inserted into input port 3b.

FIG. 9 is a side view showing a third modification of the regulating means 15. In FIG. 9, the regulating means 15 of this modification is constituted by a plurality of regulating members 157 that protrude downward from the lower surface of the attachment main body 111. Each regulating member 157 is the same member as the protrusions 151, 152 of the above embodiment, but when the mounting body 111 is placed on the upper end surface of the cylindrical portion 3a, They are respectively fixed to the outer circumferential portion of the lower surface of the attachment body 111 so as to be disposed close to the outer circumferential surface. As a result, when the mounting body 111 placed on the upper end surface of the cylindrical portion 3a attempts to move in the horizontal direction, any one of the plurality of regulating members 157 comes into contact with the outer circumferential surface of the cylindrical portion 3a, and the mounting body 111 horizontal movement is restricted.

FIG. 10 shows a fourth modification of the regulating means 15, in which (a) is a side view and (b) is a plan view seen from below. In FIGS. 10(a) and (b), the regulating means 15 of this modification has the function of regulating the vertical and horizontal movement of the mounting body 111 placed on the upper end surface of the cylindrical portion 3a. are doing. The regulating means 15 includes a plurality of abutting members 158 (two in the illustrated example) fixed to the outer circumference of the lower surface of the mounting body 111, and an abutted member 159 fixed to the outer circumference of the cylindrical portion 3a. has been done.

The two contact members 158 are arranged on the lower surface of the attachment main body 111 at an interval of 180° in the circumferential direction. Each contact member 158 is formed into an L-shape in side view, and includes a vertical plate portion 158a whose upper end is fixed to the lower surface of the mounting body 111, and a vertical plate portion 158a that extends from the lower end of the vertical plate portion 158a to the center side of the mounting body 111. It has a horizontal plate portion 158b extending in the horizontal direction.

The abutted member 159 includes an annular band portion 159a that is tightened and fixed to the outer peripheral surface of the cylindrical portion 3a, and a plurality of (two in the illustrated example) flat plates that are fixed to the outer peripheral surface of the band portion 159a and protrude in the horizontal direction. It has a shaped protrusion 159b. The two protrusions 159b are arranged at an interval of 180° in the circumferential direction of the band portion 159a. The abutted member 159 is arranged on the cylindrical portion 3a such that the protruding portion 159b is disposed above the horizontal plate portion 158b of the abutting member 158 with the mounting body 111 placed on the upper end surface of the cylindrical portion 3a. Fixed to the outer circumferential surface.

With the above configuration, the attachment main body 111 is placed on the upper end surface of the cylindrical portion 3a with the abutted member 159 fixed to the outer peripheral surface of the cylindrical portion 3a. At that time, with the abutting member 158 shifted in the circumferential direction with respect to the protrusion 159b, the mounting body 111 is placed on the upper end surface of the cylindrical portion 3a and rotated in the horizontal direction, as shown in FIG. 10(a). And the state shown in (b) can be achieved.

In the state shown in FIGS. 10(a) and 10(b), when the mounting main body 111 attempts to move in the horizontal direction (left-right direction in FIG. 10(a)), the vertical plate portion 158a of the abutment member 158 By coming into contact with the tip of the protrusion 159b of 159, movement of the attachment main body 111 in the horizontal direction is restricted. Furthermore, when the mounting body 111 attempts to move in the vertical direction, the horizontal plate portion 158b of the abutting member 158 comes into contact with the lower surface of the protruding portion 159b of the abutted member 159, thereby causing the mounting body 111 to move in the vertical direction. is regulated.

[Second embodiment]
FIG. 11 is a side view showing a silo charging device 1 according to a second embodiment of the present invention. FIG. 12 is a view taken along arrow III in FIG. 11. 11 and 12, the silo loading device 1 of this embodiment differs from the first embodiment mainly in the arrangement of the blower 14.

In this embodiment, the mounting body 11 is comprised only of the mounting body 111 formed in the shape of a disk. The discharge pipe 13 has a pipe main body 13c formed of a circular pipe member, and an annular flange portion 13d projecting radially outward from the lower end of the pipe main body 13c. The tube body 13c is passed through the second attachment hole 114 of the attachment body 111 from below, and the upper surface of the flange portion 13d is in contact with the lower surface of the attachment body 111. In this state, the flange portion 13d and the flange portion 14c of the blower 14, which will be described later, are fixed to the mounting body 111 with bolts or the like.

As a result, when the attachment body 111 is placed on the upper end surface of the tube body 3a, the upper open end 13c1 of the tube body 13c is placed outside the silo 3, and the lower open end 13c2 of the tube body 13c is placed outside the silo 3. Located in silo 3. Therefore, the discharge pipe 13 is provided in the mounting body 111 so as to communicate between the inside and outside of the silo 3 via the input port 3b. A bag filter (not shown) arranged above the attachment body 111 is connected to the upper open end 13c1 of the tube body 13c.

The blower 14 is arranged below the attachment main body 111. An annular flange portion 14c is formed at the edge of the exhaust port 14b of the blower 14, and the flange portion 14c is fixed to the mounting body 111 together with the flange portion 13d of the exhaust pipe 13 as described above. Thereby, the exhaust port 14b of the blower 14 is connected to the open end 13c2 (one end) of the exhaust pipe 13 disposed inside the silo 3.

The outer shape of the blower 14 is smaller than the inner diameter of the cylindrical portion 3a, and is placed below the mounting body 111 at a position where it can be inserted into the cylindrical portion 3a from the inlet 3b (see also FIG. 13). . As a result, the blower 14 is placed in the silo 3 by placing the attachment body 111 on the upper end surface of the cylindrical portion 3a.

The intake port 14a of the blower 14 is formed at a position facing the inner surface of the input port 3b with the mounting main body 111 placed on the upper end surface of the cylindrical portion 3a. A mesh screen (not shown) is provided at the intake port 14a of the blower 14 so that the pellets in the silo 3 are not sucked into the blower 14.

With the above configuration, the blower 14 is disposed inside the silo 3 with the mounting body 11 attached to the upper end of the silo 3, so the center of gravity of the silo charging device 1 can be lowered. Thereby, the silo charging device 1 can be installed in the silo 3 in a stable state. Further, the conveying air that is injected into the silo 3 together with the pellets from the input pipe 12 is sucked into the intake port 14a of the blower 14 disposed in the silo 3, and is passed through the exhaust port 14b of the blower 14 to the discharge pipe 13 and the bag filter. Since the air passes through and is discharged outside the silo 3, the function of discharging the conveying air by the blower 14 is not impaired.

The regulating means 15 is composed of three protrusions 161, 162, 163 that protrude downward from the lower surface of the attachment main body 111, and one of the protrusions 163 is inserted into the vertical pipe portion 12a of the input pipe 12. A portion below the bottom surface of the attachment body 111 also serves as the attachment body 111 . The remaining two protrusions 161 and 162 are formed by bending a cylindrical member having a smaller diameter than the vertical tube portion 12a into a U-shape when viewed from the side.

That is, the protruding body 161 has a pair of contact parts 161a extending in the vertical direction and a mounting part 161b extending in the horizontal direction between these contact parts 161a. Similarly, the protruding body 162 has a pair of abutting portions 162a extending in the vertical direction, and a mounting portion 162b extending in the horizontal direction between these abutting portions 162a. The upper end of each contact portion 161a of the protrusion 161 and the upper end of each contact portion 162a of the protrusion 162 are fixed to the lower surface of the attachment body 111.

The length L2 in the vertical direction of each protruding body 161, 162 is longer than the length L3 in the vertical direction of the protruding body 163 and the length L4 from the lower surface of the mounting body 111 to the lowest end of the blower 14. . In the side view of FIG. 12, the contact portion 161a of the protrusion 161 is formed in a straight line, and the contact portion 162a of the protrusion 162 is bent into an L-shape.

FIG. 13 is a plan view of the silo loading device 1 of FIG. 11 viewed from below. As shown in FIG. 13, the mounting portion 161b of the protrusion 161 is disposed on one end side (the upper end side in the figure) of the blower 14, and is formed linearly in a plan view. The mounting portion 162b of the protruding body 162 is disposed on the other end side of the blower 14 (lower end side in the figure), and is bent into an arch shape in a plan view, so that it can be bent in two directions in the longitudinal direction. It has bent portions 162b1 at certain locations.

With the mounting body 111 placed on the upper end surface of the cylindrical portion 3a, the abutment portion 161a on one side (left side in the figure) of the protrusion 161, the pair of abutment portions 161a and the mounting portion 162a on the protrusion 162, Each of the bent portions 162b1 and the protruding body 163 are arranged close to the inner surface of the input port 3b within the cylindrical portion 3a. The other configurations of this embodiment are the same as those of the first embodiment, so their description will be omitted.

With the above configuration, when the attachment main body 111 placed on the upper end surface of the cylindrical portion 3a tries to move in the horizontal direction, either the abutment portions 161a, 162a of the protrusions 161, 162 or the protrusion 163 By coming into contact with the inner surface of 3b, movement of the attachment main body 111 in the horizontal direction is restricted. Furthermore, even if the attachment main body 111 tends to tilt with respect to the upper end surface of the cylindrical portion 3a due to the weight of the connection hose 8 connected to the input pipe 12, the contact portions 161a, 162a of the protrusions 161, 162 and the protrusion 163 When either of them comes into contact with the inner surface of the input port 3b, it is possible to prevent the mounting body 111 from tilting. Thereby, the attachment body 11 can be prevented from falling off from the upper end of the silo 3.

Moreover, since the vertical pipe portion 12a of the charging pipe 12 also serves as the protruding body 163, the number of parts is reduced, and the silo charging device 1 can be constructed at low cost.
In addition, when the silo loading device 1 is not used, the mounting parts 161b and 162b of the two protruding bodies 161 and 162 are grounded and the mounting body 11 is placed on the ground, etc., so that the silo loading device 1 can be stabilized. Can be stored in good condition. In addition, since the mounting parts 161b and 162b protrude downward from the respective lower ends of the charging pipe 12 and the blower 14, when the mounting body 11 is placed on the ground, the charging pipe 12 and the blower 14 are placed on the ground, etc. This can prevent damage caused by contact.

[others]
In the above embodiment, wood pellets have been described as the stored material in the silo 3, but pellets other than wood, livestock feed, etc. may be used as the stored material in the silo 3. Further, although the silo charging device 1 of the above embodiment separates the pellets and the conveyance air by inertia force, the pellets and the conveyance air may be separated by a cyclone.

In the mounting body 11 of the above embodiment, the lower surface of the mounting body 111 is placed directly on the upper end of the silo 3, but other members constituting the mounting body 11 are placed directly on the upper end of the silo 3. Good too. For example, if the mounting body 11 is equipped with a sealing member that seals between it and the input port 3b of the silo 3, the sealing member is fixed to the lower surface of the mounting body 111, and the sealing member is attached to the upper end of the silo 3. It may also be placed directly. Further, when the mounting body 11 includes a cylindrical member fixed to the lower surface of the mounting main body 111, the inner diameter of the cylindrical member is formed larger than the outer diameter of the cylindrical portion 3a of the silo 3, and the cylindrical member is used to form the cylindrical member. The lower end of the cylindrical member may be placed directly on the shoulder portion of the silo 3 extending radially outward from the lower end of the cylindrical portion 3a, with the outer periphery of the cylindrical portion 3a covered.

The attachment body 11 may be composed of a plurality of members. For example, the mounting body 11 includes a first member placed on the shoulder portion of the silo 3 and a second member placed on the edge of the input port 3b of the silo 3, and is fixed to the first member. The input pipe 12 may be connected to a flexible hose fixed to the second member to form the input path.

Although the mounting body 11 in the above embodiment is attached to the upper end of the silo 3, it may be attached to another member on the silo 3 side that is arranged around the upper end of the silo 3 as described above. Examples of the separate members include the pedestal 4, a frame other than the pedestal 4 that reinforces the silo 3, a ladder, a built-in crane device for lifting the flexible container bag 5 and dropping pellets into the container, and these ladders and crane devices. Examples include buildings, etc.

Although the mounting body 11 of the above embodiment is placed directly on the upper end side of the silo 3, it may be placed indirectly on the upper end side of the silo 3. For example, an annular pedestal may be fastened and fixed to the outer peripheral surface of the cylindrical portion 3a of the silo 3, and the mounting body 11 may be placed on the pedestal. For example, a sealing member separate from the mounting body 11 and the silo 3 may be placed on the upper end of the silo 3, and the mounting body 11 may be placed on the sealing member.

Although the mounting body 11 of the above embodiment closes the input port 3b while being placed on the upper end side of the silo 3, it is not necessarily necessary to close the input port 3b. At that time, if the mounting body 11 is separated upward from the input port 3b and the lower end of the flexible input tube 12 is separated upward from the input port 3b, the maximum deflection position of the lower end of the input tube 12 is the input It is sufficient that it is attached to the mounting body 11 so as to be located within the area above the opening 3b.
Further, when the mounting body 11 closes the input port 3b, it may be placed on the upper end side of the silo 3 and removably fixed to the upper end side by a fixing means. At this time, the mounting body 11 may be fixed to the upper end side of the silo 3 with the space between it and the input port 3b being sealed with a sealing member, etc. It may be fixed to the upper end side of the silo 3 in a closed state.

The specific configurations of the attachment body 11, the input path section, and the discharge path section are not limited to those in the above embodiment. For example, in the embodiment described above, the input pipe 12 is used as the input passage, but the input pipe 12 may not be used and the first attachment hole 113 formed in the attachment body 111 may be used as the input passage. In this case, by fixing one end of the connection hose 8 to the first attachment hole 113, the relative positions of the first attachment hole 113 and one end of the connection hose 8 with respect to the attachment body 11 do not move. Therefore, the input end of the air conveyance path (the lower end of the first attachment hole 113 or one end of the connection hose 8) is held in the area above the input port 3b of the silo 3.

Further, in the embodiment described above, the discharge pipe 13 is used as the discharge passage, but the second attachment hole 114 formed in the attachment body 111 may be used as the discharge passage without using the discharge pipe 13.
In the embodiment described above, the connection hose 8 is used as the conveyance pipe connected to the input path section (the input pipe 12), but the present invention is not limited to this, and piping or the like may be used.

Although the blower 14 in the embodiment described above is connected to one end of the discharge pipe 13, it may be provided within the discharge pipe 13. Moreover, although the blower 14 is provided in the discharge pipe 13, it may be installed on the ground. In that case, the discharge pipe 13 and the blower 14 may be connected with a hose or the like. Further, the silo loading device 1 does not necessarily need to include the blower 14. Moreover, if the silo 3 itself is provided with a mechanism for discharging the conveyance air introduced into the inside to the outside of the silo 3, the silo charging device 1 does not need to include the discharge pipe 13.

The number of protrusions constituting the regulating means 15 of the above embodiment is not limited to three, and may be two or less, or four or more. In the above embodiment, the vertical tube portion 12a of the input tube 12 also serves as a protrusion, but a dedicated protrusion may be provided separately from the vertical tube portion 12a. Further, the specific configuration of the protruding body is not limited to the above embodiment. For example, the protrusion may be fixed to the center of the lower surface of the attachment body 111.

In the first modification (see FIG. 7), the side surface of the protrusion 155 is formed so as to be continuously separated from the inner peripheral edge of the input port 3b toward the center, but it is not formed so as to be separated in stages. You can. Further, although the entire circumferential direction of the side surface of the protruding body 155 is inclined so as to be continuously separated, only the side surface portion of the protruding body 155 that is closest to the inner peripheral edge of the input port 3b is inclined. You may let them.
Further, in the first modification, the entire side surface of the protruding body 155 is inclined in the vertical direction, but only a portion of the side surface of the protruding body 155 in the vertical direction including the lower end may be inclined. In this case, the other portion of the side surface of the protrusion 155 may be formed farther from the inner circumferential edge of the input port 3b than the portion.

In the second modification (see FIG. 8), the side surface 156b of the protrusion 156 is formed so as to be continuously separated from the inner peripheral edge of the input port 3b toward the center, but it is formed so as to be separated in stages. You can leave it there. In this case, the side surface 156b may be formed in a step-like manner by alternately connecting horizontal surfaces and vertical surfaces, or a portion of the plurality of horizontal surfaces or a portion of the plurality of vertical surfaces may be connected to the input port 3b. It may be inclined so as to continuously move away from the inner peripheral edge toward the center.

The regulating means 15 of the fourth modification (see FIG. 10) regulates vertical and horizontal movement of the mounting body 11 placed on the upper end of the silo 3. It may be possible to restrict movement only in the vertical direction.

The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above-mentioned meaning, and is intended to include meanings equivalent to the claims and all changes within the scope.

1 Silo charging device 3 Silo 3b Input port 8 Connection hose (transport pipe)
11 Mounting body 12 Input pipe (input channel)
12a Vertical pipe section (vertical passage section)
12c1 Open end 151-153 Projection body 155, 156 Projection body 161-163 Projection body

Claims (4)

A mounting body that is removably attached to a silo that is placed on the upper end side of the silo, the silo having an input port formed at the upper end into which stored material can be dropped;
an input channel that is provided on the mounting body so as to communicate between the inside and outside of the silo through the input port, and to which an open end located outside the silo is connected to a conveyance pipe that conveys the stored material by air conveyance; Department and
a discharge passage provided in the mounting body so as to communicate between the inside and outside of the silo through the input port;
a protruding body provided on the mounting body and arranged to extend in the vertical direction within the silo;
The protruding body is arranged such that the mounting body placed on the upper end side is in contact with the inner surface of the input port even if the mounting body placed on the upper end side is tilted in any direction around its entire circumference with respect to the upper end part. There are multiple loading devices for silos. A mounting body that is removably attached to a silo that is placed on the upper end side of the silo, the silo having an input port formed at the upper end into which stored material can be dropped;
an input channel that is provided on the mounting body so as to communicate between the inside and outside of the silo through the input port, and to which an open end located outside the silo is connected to a conveyance pipe that conveys the stored material by air conveyance; Department and
a protruding body provided on the mounting body and arranged to extend in the vertical direction within the silo;
At least three of the protrusions are provided on the mounting body,
In the silo loading device, the at least three protrusions are arranged in a triangular shape with each protrusion serving as an apex in a plan view. The input path section has a vertical path section arranged to extend in the vertical direction within the silo,
The silo charging device according to claim 1 or 2, wherein the vertical passage portion also serves as the protrusion. The silo loading device according to any one of claims 1 to 3, wherein the protruding body is provided on the mounting body in a form that allows it to be easily inserted into the loading port.

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