JP4348658B2 - Particulate material discharge device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a discharge device for discharging and transferring a powdered granular material filled and sealed in a flexible container bag to another container.
[0002]
[Prior art]
In a wide range of industrial fields such as foods, pharmaceuticals, and chemicals, many types of powdered and granular materials are used as raw materials for manufacturing and processing products.
The granular material is filled in a suitable bag and sealed and shipped by a manufacturer, and a flexible container bag (commonly called a flexible container bag) is used as a convenient container for transportation and storage.
[0003]
The flexible container bag is provided with a pair of annular hanging straps on both shoulders so that it is convenient to hang and transport, and the lower opening that can be opened is bound with a strap. Usually, the flexible container bag has a double structure, and the discharge part of the inner bag is tied with a string and the outer bag is also tied with a string so that the entire discharge port is tightly closed.
[0004]
[Problems to be solved by the invention]
To discharge the particulate matter from such a flexible container bag, hang the hanging strap on a hoist crane, transport it above the large container on the receiving side, position the outlet of the flexible container bag in the container, The strap was unfastened, the outlet was opened, and the particulate matter was put into the container by its own weight.
[0005]
In such a discharge means, the powdered particulate matter as the contents is discharged from the discharge port at once by releasing the tie, and a large amount of dust is generated. However, it contaminated the surrounding area and caused the work environment to deteriorate. In addition, due to the shape characteristics of the flexible container bag, it is easy for the granular material to remain in the slack portion at the bottom, and during the charging operation, the worker extends the slack portion of the flexible container bag and discharges the remaining granular material by hitting it. It was difficult to automate and save labor for discharging particulate matter.
[0006]
In particular, since the flexible container bag is usually stored in a stacked state in a factory, dust or dust adheres to the surface of the bag. The dust in the container may enter the container together with the particulate matter. Impurities are mixed in the particulate matter and cannot be used as a raw material for the product. there were.
[0007]
Japanese Patent Application Laid-Open No. 10-114317 discloses a technique for fusing the bottom of the flexible container bag and automatically discharging the load. However, in order to melt the fusing, it is necessary to heat the flexible container bag with a heater. However, some of the contents of the flexible container bag may be altered by heating, and cannot be applied to all flexible container bags.
[0008]
In view of the various problems of the prior art described above, the present invention automatically performs the discharge operation when transferring the granular material, which is the filling in the flexible container bag, to a large container, without generating dust, And it aims at providing the discharge apparatus of the granular material which an impurity does not mix.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a container main body formed of a rectangular frame having an open upper surface and at least two symmetrical side surfaces, and a suspension formed by a cross-shaped frame that can be placed on the upper surface of the container main body. The bottom of the container body is provided with a chute, suspended by a lifting tool, filled with a granular material that can be placed in the container body, and tightly connected to the discharge port of the sealed flexible container bag and the chute. , The container provided in the container body with a mounting part provided in two directions located symmetrically of the hanging tool, projecting outward from the frame body, and hanging a flexible container bag below the placing part on the side of the container body An actuator that can be moved up and down is provided.
[0010]
Further, the present invention comprises a container body composed of a rectangular frame having an open top surface and at least two symmetrical side surfaces, and a hanging tool formed by a cross-shaped frame body that can be placed on the top surface of the container body. The chute is provided with a chute, suspended by a hanger, filled with a granular material that can be placed in the container body, and tightly connected to the discharge port of the sealed flexible container bag and the chute to make the hanger symmetrical. The placement part provided in the two directions located is protruded outward from the frame body, and on the side surface of the container main body, a suspension device with a flexible container bag suspended below the placement part can be raised and lowered above the container main body. Provided with an actuator and a vibration generator that gives vibration to the side of the flexible container bag facing the open side of the container body A.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1, FIG. 2 and FIG. 3 show a discharge device according to the present invention. A container 1 constituting the discharge device shown in each figure includes a container main body 2 made of a vertically long rectangular frame, a container It consists of a cross-shaped hanger 3 that can be placed on the upper surface of the main body 2.
[0012]
As shown in FIG. 3, the container body 2 is formed by a rectangular frame 2a. As shown in FIGS. 1 and 2, the container body 2 has four pillars in the lower part of the frame 2a toward the center of the diagonal line. A protruding plate-like or bar-like mounting member 4 is provided, and a discharge space 5 is formed between the tips of the mounting members 4. Further, a powder material discharger 6 is provided at the bottom of the container body 2 below the mounting member 4. The discharge tool 6 includes a cylindrical chute 7 and a discharge valve 8. The chute 7 located above the valve 8 is directed toward the center of the circular space 5. In addition, although the case where the upper surface and four side surfaces open | release is shown in the drawing, the frame 2a should just open at least two symmetrical side surfaces.
[0013]
In order to install the discharge tool 6, the bottom of the container body 2 is a plate, and the discharge tool 6 is incorporated into the plate, or a plurality of plates or rods are supported in the horizontal direction from the bottom of the frame 2a. You may make it project a member and to support the discharge tool 6 with this support member.
A known choke valve, gate valve, butterfly valve or the like can be used as the valve 8. The valve 8 has a built-in sleeve valve, and a lever 9 for opening and closing the sleeve valve is provided in the horizontal direction. It is.
[0014]
The lifting tool 3 formed by the cross-shaped frame 3a is bent at the front end of the frame 3a at a right angle downward to form support legs 10, and the lower ends of the support legs 10 are on the upper surfaces of the upper four sides of the frame 2a. It is supposed to be listed. The lower end of the support leg 10 is bent outward in the horizontal direction to form a placement portion 10a. When the lower end of the support leg 10 is placed on the frame 2a, the placement portion 10a protrudes outward from the frame 2a. It becomes the shape to do. Then, when the hanger 3 is placed on the frame body 2a, a holding tool 11 capable of sandwiching both sides of the support leg 10 is provided at the center of the four sides of the frame body 2a so as not to be displaced in the horizontal direction of the front, rear, left and right. Projected.
[0015]
The container 1 has the above configuration, and the usage state will be described next.
A large number of containers 1 are installed in a site such as a factory, and each container 1 accommodates a flexible container bag filled with a granular material and sealed. For that purpose, a number of flexible container bags 12 stacked in a stacking area on the same site are transported to and stored in each container 1 using a hoist crane. At that time, a lifting tool 3 attached to each container 1 is used. Is done.
[0016]
For example, as shown in FIG. 4, the hoist 3 is connected to a hoist crane 13, the hoist 3 is transferred to an unillustrated accumulation place, and a hanging string of the flexible container bag 12 is hooked on the lower center surface of the hoist 3. 14, the flexible container bag 12 is carried to the container 1 by the hoist crane 13 and accommodated in the container main body 2.
[0017]
When the flexible container bag 12 is accommodated in the container body 2 and the support leg 10 of the hanger 3 is placed on the frame 2a, the flexible container bag 12 is placed on the mounting member 4 as shown by the chain line in FIG. Thus, the load of the entire flexible container bag 12 is supported, but the hanging strap 14 remains hooked on the hanging tool 3.
[0018]
When the flexible container bag 12 is accommodated in the container main body 2 as described above, the bundled discharge port hangs downward through the discharge space 5, and first, the double-structured bag The string that binds the outer bag 15 is unwound and spread, and the outlet of the inner bag 16 is pulled out (see FIG. 5). Then, the lower portion of the discharge port of the inner bag 16 is spread so as to wrap the chute 7, and the inner bag 16 is tightened around the chute 7 using the clamp 17 and fixed.
[0019]
After tightly fixing the outlet of the flexible container bag 12 and the chute 7 in this way, if the binding string closing the outlet of the inner bag 16 is released, the outlet of the flexible container bag 12 as shown in FIG. Is opened, the granular material in the flexible container bag 12 flows down by its own weight, fills up to the outlet of the valve 8 through the chute 7, and the granular material can be discharged. In addition, as shown in FIG. 7, the clamp 17 can use the well-known thing which can connect the pair of clamping body 18 which can be opened and closed in the left-right direction. Alternatively, an appropriate string may be used in place of the clamp 17 and the discharge port of the flexible container bag 12 enclosing the chute 7 may be tied with a string.
[0020]
After making the granular material in the flexible container bag 12 dischargeable in the container 1 as described above, for example, a known large container inlet is closely connected to the lower surface of the valve 8 and the lever 9 is operated. When the valve 8 is opened, the granular material in the flexible container bag 12 is introduced into the container through the chute 7 and the valve 8.
[0021]
FIG. 4 shows a case where the discharging operation is automatically performed. After the flexible container bag 12 is accommodated in the container 1 as described above and the particulate material can be discharged, the chain conveyor for transporting is shown. Then, the container 1 is fed into the discharge part of the granular material. For example, as shown in FIG. 4, the container 1 is sent to the elevator 20 by the conveyor 19, the container 1 is transferred to the upper part of the discharge unit by the elevator 20, and the container 1 is moved to the upper part of the large container 22 by using the upper conveyor 21. To place.
[0022]
As the large container 22, a simple hopper may be used, or a known hopper having a screw conveyor capable of cutting out the granular material in the lower part can be used, and a mixing tank or a dissolving tank can also be used. is there. As shown in detail in FIGS. 8 and 10, for example, as shown in detail in FIGS. 8 and 10, a chute 24 that can be moved up and down by a pair of raising and lowering actuators 23 that are cylinder mechanisms is connected. Is brought into close contact with the lower surface of the valve 8 attached to the lower part of the container 1. The chute 24 has a structure that can expand and contract in the lower part. The pair of actuators 23 are connected to and supported by a gantry 25 of a chain conveyor 21 that transports the container 1 shown in FIG.
[0023]
As shown by a chain line in FIG. 10, an opening / closing actuator 26 such as a cylinder mechanism used for operating the opening / closing lever 9 of the valve 8 is horizontally attached to the chute 24. A jig 27 that can be connected to the lever 9 of the valve 8 protrudes upward from the tip of the actuator 26, and the jig 27 can be moved in the horizontal direction by the actuator 26. ing. When the chute 24 is brought into close contact with the valve 8 as described above, the jig 27 is automatically connected to the lever 9.
[0024]
The container 1 is placed on the top of the container 22, the chute 24 connected to the container 22 is raised to bring the chute 24 into close contact with the lower surface of the valve 8, and the jig 27 at the tip of the actuator 26 is connected to the lever 9 of the valve 8. Then, by pulling the jig 27 to the left in FIG. 8 and FIG. 10 by the actuator 26, the lever 9 is rotated in the horizontal direction, the valve 8 is opened, and the granular material in the flexible container bag 12 has its own weight. And flows into the container 22 through the chute 7, the valve 8 and the chute 24.
[0025]
Since the flexible container bag 12 is placed on the mounting member 4, the powdery granular material remains in the portion of the flexible container bag 12 placed on the mounting member 4 after most of the granular material is charged. In this state, the remaining granular material cannot be discharged.
8 and 9 show another embodiment of the discharge device of the present invention, and the same reference numerals are used for the same parts as those in the previous embodiment.
In this embodiment, the lifting / lowering actuator 28 such as a cylinder mechanism for lifting / lowering the lifting tool 3 is installed at least on both sides of the container 1 at the lower side of the mounting portion 10a of the lifting tool 3. It is a feature.
[0026]
The raising / lowering actuator 28 constituted by the cylinder mechanism is installed upright on the floor of the discharge part, and the support part 29 provided at the upper end can be connected to the placement part 10a of the support leg 10 of the hanger 3. In general, the mounting portion 10 a is fitted in the support portion 29.
[0027]
When the hoisting tool 3 is raised by the actuator 28, the flexible container bag 12 on which the hoisting strap 14 is hooked on the hoisting tool 3 is also lifted upward (see FIG. 9). Thus, the particulate matter remaining around the bottom of the flexible container bag 12 will naturally flow down into the container 22. Note that if the actuator 28 is caused to vibrate by moving the actuator 28 up and down several times, the particulate matter adhering to the inner surface of the flexible container bag 12 can be dropped.
[0028]
FIG. 11 shows still another embodiment of the discharge device of the present invention, and the same reference numerals are used for the same parts as those of the above-described embodiments.
This embodiment is characterized in that one or two vibration generators are provided on the outer side facing the open side surface of the container 1. As the vibration generator, a striking actuator 30 as shown in the figure can be used, and a circular or square plate member 31 is provided at the tip of the actuator 30.
[0029]
By reciprocating the striking actuator 30 constituted by the cylinder mechanism, the plate-shaped member 31 repeatedly strikes the side surface of the flexible container bag 12 and gives vibration, thereby facilitating the discharge of the particulate matter inside. In addition to the state where the flexible container bag 12 is pulled up vertically by the actuator 28 as described above, the flexible container bag 12 is struck with the flexible container bag 12 placed on the mounting member 4 as shown in FIG. It may be.
[0030]
In the above description, the lifting tool 3 on the container 1 is a case where the support legs 10 are provided on the four frame bodies 3a. This is a height for holding the flexible container bag 12 by being suspended in the container body 2. This is to maintain the thickness. The flexible container bag 12 has various sizes, and the suspension tool 3 corresponding to the size of the flexible container bag 12 can be used by preparing the suspension tool 3 having different support leg 10 heights.
[0031]
In addition, when the size of the flexible container bag 12 is small, the support leg 10 of the hanger 3 can be omitted. In this case, the tips of the four frame bodies 3a may be projected horizontally from the four sides of the container body 2 to form the placement portion 10a, and the placement portion 10a may be placed on the support portion 29 of the actuator 28. . The placement portion 10a does not have to be provided in four directions, and may be provided only in two directions at symmetrical positions corresponding to the lifting / lowering actuator 28.
[0032]
Further, instead of the striking actuator 30, vibration may be applied to the flexible container bag 12 by a known vibration device so that the particulate matter is removed.
In the above description, the lifting / lowering actuator 23, the opening / closing actuator 26, the lifting / lowering actuator 28, the striking actuator 30 and the like have been described as being a cylinder mechanism. However, the present invention is not limited to this, and a known screw ball mechanism is known. Can also be used.
[0033]
【The invention's effect】
As described above, according to the present invention described above, the container body 2 is formed by the rectangular frame body 2a having an open top surface and at least two side surfaces, and the bottom portion is provided with the discharge tool 6 including the chute 7 and the valve 8. 2, it is possible to place a cross-shaped suspender 3 capable of suspending a flexible container bag (flexible bag) 12 filled and sealed with a granular material, and the flexible container bag 12 is placed in the container body 2. Since the outlet of the flexible container bag 12 and the chute 7 are closely connected, the opening of the valve 8 is opened by bringing the inlet of the container for putting the particulate material into close contact with the lower surface of the valve 8. The particulate material can be put into the container, dust is not generated, and impurities are not mixed in the particulate material.
[0034]
In particular, a chute 24 that can be moved up and down is connected to the inlet of the container so that the chute 24 is in close contact with the lower surface of the valve 8, and a jig 27 that can operate the opening / closing lever 9 of the valve 8 is horizontally attached to the chute 24. By attaching the valve 8 in a movable manner, the connection between the valve 8 and the chute 24 and the release of the lever 9 by the jig 27 can be automatically performed, and the discharge and charging of the particulate matter can be easily performed. In addition, generation of dust and mixing of impurities can be prevented.
[0035]
Further, a device capable of raising and lowering the hanger 3 is installed on the side surface of the container main body 2, and the flexible container bag 12 is lifted vertically by lifting the hanger 3 so that the flexible container bag is lifted vertically. 12 has no stepped portion, and all the particulate matter remaining or adhering to the inside can be discharged.
[0036]
Furthermore, a vibration generating device is provided facing the open side surface of the container body 2, and the granular material adhering in the flexible container bag 12 can be wiped off by applying vibration to the flexible container bag 12 from the outside. Economic waste treatment is possible without wasting the particulate matter.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a discharge device of the present invention.
FIG. 2 is a plan view showing an embodiment of the discharge device of the present invention.
FIG. 3 is a perspective view showing an embodiment of the discharge device of the present invention.
FIG. 4 is a front view of the entire apparatus that automatically discharges particulate matter.
FIG. 5 is an enlarged front view of a main part in a state where an inner bag of a flexible container bag is connected to a chute.
FIG. 6 is an enlarged front view of the main part in which the discharge port of the flexible container bag and the chute are connected to enable the particulate matter to be discharged.
FIG. 7 is a plan view of the clamp.
FIG. 8 is a front view showing another embodiment of the discharge device of the present invention.
FIG. 9 is a front view showing a discharged state of particulate matter by hanging the flexible container bag upward in another embodiment of the discharge device of the present invention.
FIG. 10 is a perspective view of a chute portion of a container that receives a granular material.
FIG. 11 is a front view showing still another embodiment for discharging particulate matter of the discharge device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container 2 Container main body 3 Lifting tool 4 Mounting member 5 Discharge space 6 Discharge tool 7 Chute 8 Discharge valve 9 Opening / closing lever 10 Support leg 10a Mounting part 11 Clamping tool 12 Flexible container 13 Hoist crane 14 Suspension string 15 Outer bag DESCRIPTION OF SYMBOLS 16 Inner bag 17 Clamp 18 Clamping body 19 Chain conveyor 20 Elevator 21 Chain conveyor 22 Large container 23 Lifting actuator 24 Chute 25 Mount 26 Opening / closing actuator 27 Jig 28 Lifting actuator 29 Support part 30 Strike actuator 31 Strike plate shape Element

Claims (2)

Consists of a container body consisting of a rectangular frame with the upper surface and at least two symmetrical sides open, and a hanger formed by a cross-shaped frame that can be placed on the upper surface of the container body, and a chute is provided at the bottom of the container body, A flexible container bag that is suspended by a hanging tool, filled with a granular material that can be placed in the container body, and sealed is tightly connected to the discharge port of the flexible container bag and provided in two directions symmetrically to the hanging tool. The mounting portion is projected outward from the frame body, and an actuator is provided on the side surface of the container body so that a lifting tool that suspends the flexible container bag can be moved up and down above the container body. Discharge device for powdered granular material. Consists of a container body consisting of a rectangular frame with the upper surface and at least two symmetrical sides open, and a hanger formed by a cross-shaped frame that can be placed on the upper surface of the container body, and a chute is provided at the bottom of the container body, A flexible container bag that is suspended by a hanging tool, filled with a granular material that can be placed in the container body, and sealed is tightly connected to the discharge port of the flexible container bag and provided in two directions symmetrically to the hanging tool. The container is protruded outward from the frame, and an actuator is provided on the side surface of the container main body below the placement section so that a lifting tool that suspends the flexible container bag can be raised and lowered above the container main body. A vibration generating device is provided to apply vibration to the side surface of the flexible container bag facing the open side surface of the main body. Discharge device for particulate material.

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