JPH0818632B2 - Mobile silos such as cement - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile silo of cement or the like which enables the amount of cement or the like remaining in a storage portion to be accurately grasped.

[0002]

2. Description of the Related Art It is used when cement is needed at a construction site where it is inconvenient for a mixer truck to pass, or when an appropriate amount of cement admixture is needed quickly. A mobile silo is known that is transported to a construction site by a truck or the like and installed there for a necessary period.

This type of silo is generally equipped with an accommodating section for accommodating cement and the like and an ejecting device for taking out the cement and the like contained therein (for example, Japanese Patent Publication No. 3). -9036 gazette), when used, the cement taken out by the discharge device is handled so as to be supplied to other devices only in a required amount by measuring with a measuring device incorporated in the silo or provided separately from the silo. Be done.

[0004]

In the above-mentioned conventional silo, the remaining amount of cement or the like in the accommodating portion cannot be accurately grasped, and therefore the cement or the like is fed to the weighing device in an attempt to be supplied. However, there is a slight shortage, and sometimes it is necessary to urgently get cement etc. from another place, or conversely, I think that it is a little remaining amount and supply it to other equipment with the intention of exhausting it, than I thought It is inconvenient because the amount is large and it may be difficult to dispose of it, and it is inconvenient when the amount of cement etc. to be supplied to the storage part is not clear, and it is necessary to change the type of cement etc. midway. In some cases, the cement before the change is not exhausted in many cases, and its treatment may require unplanned work.

It is an object of the present invention to provide a mobile silo, such as cement, whose residual quantity can be accurately grasped in order to solve the above problems.

[0006]

In order to achieve the above object, according to the present invention, an accommodating portion for cement or the like having a downward conical shape is formed in a cylindrical housing, and its discharging device is a horizontal screw conveying device and a vertical screw conveying device. It consists of a screw conveyor and
The horizontal screw conveying device is installed at the bottom bottom position of the accommodating portion so that the vertical screw conveying device is erected upward along the pipe wall in the housing, and a plurality of outwardly extending outwardly are formed on the housing wall face at different height positions. An outlet is provided, on the other hand, a plurality of load cells are attached to the lower part of the housing at equal intervals, and the load cells are placed on a mount via the load cells.
On the other hand, the housing and the gantry are suitably provided with a connecting means for fixing the load cell in an immovable state when the load cell becomes inoperative.

[0007]

[Function] The load cell or other measuring means accurately measures the total weight of the silo main body in which the cement or the like is contained, and the remaining amount of the cement or the like can be accurately grasped numerically.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing the use state of the product of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a side view of the same, and FIG. 4 is a front view showing the weighing means of the same. 5 is a perspective view showing the weighing means, FIG. 6 is a view showing a connecting means of the present invention, (a) is a view showing a connected state, and (b) is a view showing a separated state.

In the figure, reference numeral 1 denotes a silo main body, a housing 2 forming an outer shell, an accommodating portion 3 for accommodating cement or the like, a supply pipe 4 for supplying cement or the like into the accommodating portion 3, It is composed of a discharge device 5 for taking out the cement and the like in the containing portion 3 to the outside, an escape cylinder 6 for releasing the air in the containing portion 3 to the outside, and the like.

The housing 2 has a cylindrical shape, and reinforcing members 2a and 2b (see FIG. 5) are provided inside the lower edge.

The housing portion 3 has a body portion 3a which also serves as the housing 2 and upper and lower surface walls 3b and 3c in which plate members are formed in a conical shape.
In this case, the lower surface wall 3c has a steep slope in order to prevent a bridge phenomenon such as cement.

The lower end opening 4a of the supply pipe 4 communicates with the inside of the accommodating portion 3.

The discharge device 5 comprises a horizontal screw transport device 7 and a vertical screw transport device 8. In this case, the horizontal screw conveying device 7 has its inlet communicated with the opening formed at the bottom bottom position of the accommodating portion 3 via a shutter device 9 provided as necessary, and its outlet is connected to the vertical screw conveying device 8. The vertical screw transfer device 8 penetrates the upper surface wall 3b of the accommodating portion 3 and extends upward, and two outlets 8a and 8b having different heights are provided midway in the longitudinal direction. The outlet 8a is exposed to the outside by providing a recessed wall plate member 10 and forming a space s, and the other outlet 8b is provided at a position higher than the upper surface wall 3b of the accommodating portion 3 to the outside. Exposed, each exit 8
Butterfly valves 11a and 11b are fixed to the openings of a and 8b.

The escape cylinder 6 is communicated with an opening formed in the uppermost portion of the accommodating portion 3, and a filter bag (not shown) is provided in the air passage, and the air in the accommodating portion 3 passes through this bag. It is supposed to be released to the outside.

Reference numeral 12 is a pedestal for supporting the silo main body 1, and comprises a support member 12a having a circular shape in plan view and a floor plate 12b fixed to the support member 12a, as shown in FIGS.

Therefore, the weighing means 13 capable of weighing the entire weight of the accommodating portion 1 is provided between the gantry 12 and the silo main body portion 1, and is specifically as follows.

That is, as shown in FIG. 2, in order to provide a plurality of load cells as weighing means at equal intervals in the circumferential direction of the support member 12a, the support base 14 as shown in FIGS.
The three load cells 1 are provided on each of these stands 14
3 is mounted and the lower surface of the support 3 is fixed to the base 14 with bolts 15, while at the lower edge of the housing 2 the support base 14 is mounted.
A connecting base 16 is provided at a position corresponding to the above via a reinforcing member 2a, and the connecting base 16 is fixed to the upper surface of the load cell 13 by a bolt 17. In this example, three load cells 13 are shown, but the number of load cells 13 is not limited to this.

Each load cell 13 does not function as a load detector of a weighing display device (not shown), and the weighing display device calculates the total weight of the silo main body 1 from the detection signal of each load cell 13, and then this weight. The tare weight obtained in advance is subtracted from the above to calculate the weight of the cement or the like in the storage portion 3 and other necessary weights, and this is displayed on the display portion.

Reference numeral 18 denotes a connecting means for connecting the pedestal 12 and the silo main body 1 in a separable manner.
At least three or more are provided at equal intervals in the circumferential direction of a. In this case, each of the connecting means 18 can easily perform both the connecting operation and the separating operation.
In this example, the coupling member 18a is fixed to the reinforcing members 2a and 2b of the housing 2 in a hanging shape, and the supporting member 1 of the pedestal 12 is provided.
Another connecting member 18b is also fixed to 2a in a standing manner, and the vertical surface portions a1 and a2 of these connecting members 18a and 18b are opposed to each other in the presence of an appropriate gap, and an H-shaped member 19 is interposed in this gap. , One recessed portion 19a of this member 19
One coupling member is fitted to the other, and the other coupling member is fitted to the other recessed portion 19b.
A through hole (not shown) is formed in each of a and 18b and the H-shaped member 19 so as to form a straight line in the horizontal direction, and the bolt 20 is inserted into the hole and fastened.

Reference numerals 21a and 21b are latch members for holding the duct chute 22 in an inclined shape, 23 is a stabilizer for stabilizing the silo main body 1 in a horizontal position, 24 is an opening provided in the housing 9, and 25 is a manhole.

Explaining an example of use of the product of the present invention configured as described above, when cement is needed at a remote work site, the product of the present invention is loaded horizontally on a truck or the like to the site. Carry. The connecting means 18 ... Is brought into a connected state as shown in FIG. 6 (a), whereby the silo main body 1 and the pedestal 12 are integrally fixed and can be relatively moved by vibration during transportation. It will not be displaced, and damage to the load cells 13, etc. will be prevented. Further, the stabilizing table 23 is set so as to be stably brought into contact with the cargo bed surface of the truck, whereby the product of the present invention does not move in position and can be transported without collapse of the cargo. After being carried to the site in this way, the present invention product is made to stand on its own with the gantry 12 down, and then it is made to be in a state in which it is difficult to tip, and then the bolts 20 of the coupling means 18 ... and the H-shaped member 19 ... Is removed, or Fig. 6 (b)
After the H-shaped members 19 ... Are removed, only the bolts 20 ... are mounted again and the bolts 20 ...

After that, the lorry wheel is brought close to the product of the present invention, and then cement is supplied to the inside of the accommodating portion 3 through the supply pipe 4, and the cement is supplied by the air flow generated by the blower of the lorry wheel. Housing 3
After being conveyed to the inside, it is separated from the air by a filter bag (not shown) and dropped into the accommodating portion 3, and only the air is discharged from the escape cylinder 6 as shown by the arrow f.

Therefore, when the required amount of cement in the accommodating portion 3 is supplied to another device, for example, the mixer m (see FIG. 1) installed on site, the discharge device 5 is operated, whereby the cement is released. Through the shutter device 9 and flows into the entrance of the horizontal screw transport device 7, is laterally transported by this device 7 and reaches the entrance of the vertical screw transport device 8,
Further, it is conveyed in the vertical direction by this device 8. Assuming that the lower outlet 8a and the mixer m are connected by the duct chute 22 and the butterfly valve 11a is opened as shown in FIG. 1, the cement conveyed in this way is discharged from the outlet 8a.
Also, it is supplied into the mixer m through the duct chute 22. Thus, when the cement is taken out from the accommodating portion 3, the total weight of the silo main body 1 is reduced by the weight of the cement supplied to the mixer m, which is detected by the load cell 13 ... The device calculates the weight of the supplied cement based on the detection signals of the load cells 13 ... And also calculates the remaining amount of the cement in the accommodation section 3 and displays it numerically. When the required amount of cement has been taken out of the storage unit 3, the discharge device 5 is stopped, and the remaining amount of cement in the storage unit 3 at this time is also displayed numerically on the weighing display device. Subsequent supply of cement is also performed according to the above-mentioned conditions, and the operator can always know the remaining amount of cement by a numerical value.

[0024]

As described above, according to the present invention, the remaining cement amount in the accommodating portion can be accurately grasped with a numerical value whenever necessary, and the conventional problems can be solved.

[Brief description of drawings]

FIG. 1 is a front view showing a usage state of a product of the present invention.

FIG. 2 is a plan view of the same product.

FIG. 3 is a side view of the same product.

FIG. 4 is a front view showing a weighing unit of the same product.

FIG. 5 is a perspective view showing the weighing means.

6A and 6B are views showing a connecting state of the product of the present invention, and FIG. 6B is a view showing a separated state.

[Explanation of symbols]

 1 Silo main part 12 Stand 13 Load cell (measurement means)

Claims (1)

[Claims] 1. A container having a conical shape, such as cement, having a lower portion formed in a cylindrical housing is formed, and its discharging device comprises a horizontal screw conveying device and a vertical screw conveying device. The vertical screw conveying device is erected upward along the pipe wall in the housing at the bottom bottom position of the section, and a plurality of outlets are provided outward on the housing wall surface at different height positions, On the other hand, a plurality of load cells are attached to the lower part of the housing at equal intervals and are placed on the pedestal via the load cells. On the other hand, the housing and the pedestal are fixed in an immovable state where the above-mentioned load cells are in an inoperative relationship. A mobile silo such as cement, characterized in that it is provided with a connecting means for carrying out.