JP2652472B2 - Device for embedding powder volume in on-board powder tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for loading powder into a vehicle-mounted powder tank, and more particularly to a method for loading powder such as cement from a silo at a loading base into a powder tank mounted on a vehicle. The present invention relates to an apparatus capable of automatically loading granules.

[0002]

2. Description of the Related Art When loading granular material from a silo at a loading base into a vehicle, a plurality of manholes provided on an upper portion of a granular material tank mounted on the vehicle and a plurality of discharge pipes attached to a silo side. Are connected respectively. Usually, the granular material tank is partitioned by a partition so that three or four storage chambers are formed therein, but a space communicating with an adjacent storage chamber is secured at the top of each storage chamber. I have. This is to make it easier to exhaust the air in the tank when loading the granular material. In such a powder tank,
In the loading operation, the granular material is loaded from the upper manhole, but at the unloading base at the destination, pressurized gas is introduced into each chamber of the granular material tank, and the pressing force causes the granular material to move to the bottom. Is discharged to a silo or the like by air flow.

[0003]

By the way, in a conventional powder-volume loading device, when loading a powder into a powder tank, an operator manually opens a manhole or manually discharges a manhole. Troublesome work, such as connection with the vehicle and opening and closing various valves for loading. Therefore, it is necessary to repeat such an operation by the number of manholes, and the efficiency of the loading operation of the granular material is extremely low. Not only that, even if the vehicle is stopped at the correct position with respect to the silo, a slight alignment is required to connect the manhole and the silo side discharge port, and each time is required. There were also inconveniences. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object to automatically and efficiently supply powder and granular materials through a plurality of manholes provided at an upper portion of a vehicle-mounted powder and granular material tank from a discharge port on a silo side. To the on-board type powder / granule tank that realizes that even if there is a slight shift between the discharge port and the manhole during loading, it can be easily and automatically aligned and connected. It is an object of the present invention to provide a device for incorporating a volume of powder.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a granular material is loaded from a silo at a loading base through a manhole located above a granular material tank mounted on a vehicle and opened for loading the granular material. Applicable to a device for embedding powder and particles. Its features are:
As shown in FIG. 1, loading opening / closing bodies 5A to open / close the loading ports 4A to 4D are provided at upper portions of the manholes 3A to 3D.
5D is provided, an actuator 7 for operating the loading opening / closing bodies 5A to 5D is mounted, and a manhole opening / closing detection switch 8 for detecting the opening / closing is provided. A flexible telescopic tube 12 is connected to the outlet 11A of the hopper H provided at the lower end of the silo,
At the lower end of the telescopic tube 12, loading tubes 13A to 13D fitted to the manholes 3A to 3D are attached. Discharge control valves A2, B2, C2, D2 for controlling the discharge of the loaded granules are provided in a discharge pipe 11 having the discharge port 11A.
(See FIG. 7), and a valve open / close switch 17 for detecting the opening / closing of the discharge control valves A2 to D2 is provided. The hopper H side and the loading pipes 13A to 13D are connected by a loading cylinder 14, and a cylinder expansion / contraction detection switch 16 for detecting the maximum extension and the maximum contraction of the loading cylinder 14 is provided. Powder tank 2
Are mounted with level meters L1 to L4 (see FIG. 3) for detecting that the loaded granular material 1a has reached a predetermined accumulation amount. When the manhole opening / closing detection switch 8 detects that the loading opening / closing members 5A to 5D are completely opened, the loading cylinder 14 extends the telescopic tube 12, and
When the maximum extension state of the loading cylinder 14 is detected by the cylinder expansion / contraction detection switch 16, the discharge control valves A2 and B
2, C2 and D2 are opened, and when the level meters L1 to L4 detect the completion of loading of a predetermined amount of the granular material, the discharge control valves A2, B2, C2 and D2 are closed, and the discharge control valves A
When the valve opening / closing switch 17 detects that the valves 2, B2, C2, and D2 are closed, the telescopic tube 12 is contracted by the loading cylinder 14, and the maximum contraction of the loading cylinder 14 is detected by the cylinder telescopic detection switch 16. Then, loading control means 9 (see FIG. 5) for issuing a command to close the loading opening / closing bodies 5A to 5D by the actuator 7 is provided. A hopper H provided at the lower end of the silo
A flexible telescopic tube 12 is attached to the outlet 11A of the manhole 3A.
Inverted conical loading pipes 13A to 13D having an outlet outer diameter smaller than the opening diameter of the 3D and increasing in diameter upward are connected. Hopper H side and inverted conical loading tube 13A-1
The 3D is connected to a pair of loading cylinders 14, 14, and both ends of the loading cylinders 14, 14 are attached via rotatable joints 15. Loading cylinders 14 and 1 in open manholes 3A to 3D
4, when the inverted conical loading pipes 13A to 13D are fitted, the stop position of the vehicle 1 (see FIG. 2) is shifted and the longitudinal axis N1 of the manholes 3A to 3D and the inverted conical loading pipes 13A to 13D.
Even if the longitudinal axis N2 of 13D does not coincide, the inverted conical surfaces 13b of the inverted conical loading pipes 13A to 13D are connected to the manhole 3.
The inverted conical loading pipes 13A to 13D are lowered into the manholes 3A to 3D by being lowered while being guided by the opening edge 4a on the A to 3D side and allowing the loading cylinders 14 and 14 to tilt in a vertical posture. Both longitudinal lines N1 and N2 can be fitted together.

[0005]

The vehicle 1 has the hopper outlet 1 on the silo side.
Stops just below 1A and starts loading.
1 to L4 are driven and the actuator 7 is reduced, and the loading opening / closing bodies 5A to 5D are opened. When the manhole opening / closing detection switch 8 is operated, each loading cylinder 14 is extended by a command from the loading control means 9 and the loading pipe 13A is extended.
13D descends while extending the telescopic tube 12, and the loading port 4
A to 4D. The cylinder expansion / contraction detection switch 16 is operated by the maximum extension of the loading cylinder 14, and the discharge control valve A provided in the discharge pipe 11 having the discharge port 11A.
2, B2, C2, and D2 are opened. With the opening, the valve open / close switch 17 operates, and an opening signal is input to the loading control means 9. Thus, the discharge control valves A2, B2, C2,
When D2 is opened, the granular material is loaded into the granular material tank 2 from the hopper H of the silo. When full, the granular material 1a stops the rotation of the level meters L1 to L4. Upon receiving the stop signal, the discharge control valves A2, B2, C2, and D2 are closed, and the loading of the granular material from the silo is stopped. When the valve open / close switch 17 is operated, the discharge control valves A2, B
2, the closing signals of C2 and D2 are input to the loading control means 9, and the loading cylinder 14 is reduced based on it. The loading pipes 13A to 13D rise while contracting the telescopic pipe 12 and separate from the loading ports 4A to 4D, and the loading cylinders 14 are in the maximum contracted state. At that time, the cylinder expansion / contraction detection switch 16 is operated, the actuator 7 is extended, the loading opening / closing members 5A to 5D are closed, and the inside of the powder tank 2 is shut off from the outside, and the automatic loading operation of the powder is performed. Is completed. In the invention having a different configuration, when the loading opening / closing bodies 5A to 5D are opened as described above, each loading cylinder 14 is extended, and the hopper H in the silo is opened.
Inverted conical loading pipes 13A to 13D connected to the discharge port 11A through the telescopic pipe 12 descend, and the manhole 3A
~ 3D. Inverted conical loading pipes 13A to 13D
Is formed smaller than the opening diameter of the manholes 3A to 3D and the diameter is increased upward, so that the stop position of the vehicle 1 is shifted and the vertical axis N1 of the manholes 3A to 3D is inverted conical. Vertical axis N of loading pipes 13A to 13D
2 does not match, the inverted conical loading tubes 13A-1A
The 3D inverted conical surface 13a is fitted down while being guided by the opening edges 4a on the manholes 3A to 3D side. that time,
The pivotable joints 15 provided at both ends of each loading cylinder 14 allow the paired loading cylinders 14 to tilt, so that the inverted conical loading tubes 13A to 13D are connected to the manholes 3A to 3D. The connection is ensured, and the leakage of the granular material does not occur.

[0006]

According to the present invention, the powder particles are transferred from the outlet of the hopper of the silo at the loading terminal, through the loading pipe, the tank-side loading pipe, and the manhole, into the powder tank mounted on the vehicle. When the body is loaded, devices such as a discharge control valve and a loading opening / closing body are automatically operated according to a command from the loading control means, and the loading operation is performed efficiently without requiring any manpower. Also,
An inverted conical loading tube connected to the hopper outlet via a telescopic tube allows paired loading even if there is a displacement between the vehicle side manhole and the loading base side outlet. In combination with the tilting of the cylinder, the inverted conical loading tube is easily fitted into the manhole, and the efficiency of preparation in the operation of loading the powder and the volume and the reliable connection operation are smoothly performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings of the embodiments. As shown in FIG. 2, a granular material tank 2 on which the granular material is loaded is mounted on a truck or a transport trailer 1, and the granular material tank 2 contains a granular material 1a as shown in FIG. First room R1, second room R2
Partition wall 2 to form third chamber R3 and fourth chamber R4
b, 2b, each accommodation room R1, R2, R
The upper portions of 3, R4 communicate with each other. Manholes 3A to 3D are provided on the ceiling of each of these accommodation rooms, and cylindrical short tank-side loading pipes 4 and 4 forming loading ports 4A to 4D at the upper portion and attached to the lower portion. Tank-side loading valves A1, B1, C1, and D1 and lids that are loading opening / closing bodies 5A to 5D that open and close the loading ports 4A to 4D. Tank side loading valves A1, B1, C1, D interposed between each manhole 3A-3D and tank side loading pipes 4, 4
Reference numeral 1 denotes a butterfly valve as shown in FIG. 4, which is a tank-side loading valve A1 even when the loading opening / closing members 5A to 5D are opened at the start of loading of the granular material or before the loading is completed.
By closing the valve body 10A of D1 to D1 as shown by a dashed line, the inside of the powder tank 2 and the hopper H side installed below the silo (not shown) can be shut off. In addition,
The tank-side loading valves A1, B1, C1, and D1 are connected to lower flanges of the tank-side loading pipes 4 and 4 and manholes 3A to 3D.
It is fixed to the upper flange by bolts. Each of the loading / unloading bodies 5A to 5D includes a disk portion 5a and a short cylindrical portion 5b extending downward from the disk portion 5a. A packing 5c is attached to an outer periphery of a lower surface of the disk portion 5a.
When 5D closes loading ports 4A to 4D, packing 5c
Abuts against the upper surface of the opening of the tank-side loading pipe 4 to maintain airtightness.

A bracket 6 is provided on the side of the tank-side loading pipe 4.
b is fixed, and one end of the L-shaped lever 6 is pivotally supported by a pin 6a. The bent portion of the lever 6 is connected to the tip of the piston rod 7a, and the other end is integrated with the disk portion 5a and the cylindrical portion 5b of the loading opening / closing members 5A to 5D by welding or the like. On the other hand, an air cylinder 7 as an actuator is swingably attached at its base to a bracket 7c on the outer surface of the granular material tank 2.
A to prevent dust from adhering. The air cylinder 7 is operated by compressed air supplied / discharged through electromagnetic control valves E1 to E4 (see FIG. 3). When the air cylinder 7 is reduced, the lever 6 rotates about the pin 6a to move the loading opening / closing bodies 5A to 5D. The loading ports 4A to 4D are closed when opened and extended as indicated by a two-dot chain line. Each of the air cylinders 7 is provided with a manhole opening / closing detection switch 8 for detecting opening / closing of the loading opening / closing members 5A to 5D.
The opening / closing signal of D is output to the loading control means 9 (see FIG. 5) composed of a microcomputer or the like, so that the operation of loading the powder and particles is sequence-controlled. As shown in FIG. 6, the tank side loading valves A1, B1, C1, D
1 is a valve element 1 that is opened and closed by a cylinder type opening and closing mechanism 10B.
0A, and the compressed air from the compressor 10 supplied and discharged through the electromagnetic control valves G1 to G4.
0a can be operated to open and close the valve body 10A.
The electromagnetic control valves G1 to G4 are operated by a command signal from the loading control means 9 (see FIG. 5). For the control operation, the air cylinder 10a is provided with a fully closed or fully opened valve body 10A. Limit switches 10c and 10d for detecting
Is provided. In the figure, 10e is a bypass speed control compound valve, and 10f is a pressure setting device. FIG. 1 is an overall configuration diagram of a powder volume loading device 30, and a discharge port 1 of a hopper H provided at a lower end portion of a silo (not shown).
A flexible telescopic tube 12 is attached to a lower portion of the discharge tube 11 forming 1A via a band 12a for binding. At the lower end of the telescopic tube 12, loading ports 4A to 4D
Inverted conical loading pipes 13A to 13E having an outlet outer diameter smaller than the inner diameter and having a portion whose diameter increases upward.
13D is attached using a fastening band 12b. The inverted conical loading tubes 13A to 13D and the hopper H
The sides are connected by two pairs of loading cylinders 14, 14, so that the inverted conical loading tubes 13A to 13D can be moved up and down. Therefore, the upper end of each loading cylinder 14 is connected to the lower part of the hopper H via a rotatable joint 15 such as a ball joint, and the lower end of the piston rod 14b is inverted cone-shaped via the rotatable joint 15. It is connected to a holding member 13a fixed to the center of the loading tubes 13A to 13D. Therefore, when the loading cylinders 14, 14 are extended by the operation of the electromagnetic control valves F1 to F4 (see FIG. 7), the inverted conical loading pipes 13A to 13D are lowered as shown in FIG. Loading tube 4A-4
D. At that time, vehicle 1
Even if the stop position of (see FIG. 2) is slightly shifted and the longitudinal axis N1 of the tank-side loading pipe 4 does not coincide with the longitudinal axis N2 of the inverted conical loading pipes 13A to 13D, the ball joint 15 is not moved. While allowing the loading cylinder 14 to tilt by the above movement, the inverted conical surfaces 13b of the inverted conical loading pipes 13A to 13D are guided by the opening edge 4a of the tank-side loading pipe 4 and smoothly lowered, and both vertical The fitting can be performed with the axes N1 and N2 aligned. In addition, the loading tube up / down detection switch 16 for detecting the rising and falling positions of the loading tubes 13A to 13D from the maximum extension and the maximum contraction of the loading cylinders 14, 14.
Is attached to each loading cylinder 14.

As shown in FIG. 7, discharge control valves A2, B2, C2 and D2 for controlling the discharge of the granular material are mounted in the discharge pipe 11 hanging from the hopper. Further, a valve opening / closing switch 17 for detecting the opening / closing of each of the discharge control valves A2 to D2 is provided. In this example, since the discharge control valves A2 to D2 are rotary valves, the above-described valve open / close switch 17 is a switch for detecting rotation or stop of the rotor in each rotary valve. However, when another type of valve is adopted as the discharge control valve, or when a function similar to the discharge valve described below is provided instead, a valve open / close switch 17 for that purpose is provided as follows.
What is necessary is just to be able to detect the opening and closing of the valve element. In this example, the rotary valves A2, B2,
Discharge valves A3, B3, C3, D further above C2, D2
3 is provided, which is of a butterfly valve type. The discharge valves A3 to D3 are opened and closed by a cylinder type opening / closing mechanism (see FIG. 6) having the same configuration as that of the above-described tank side loading valves A1, B1, C1, and D1. As shown in FIG. 8, the upper part of the granular material tank 2 on the side of the manholes 3A to 3D detects that the granular material 1a loaded in the granular material tank 2 has reached a predetermined level. Level meters L1 to L4 are mounted. These level meters L1
L4 is a level meter main body 19A having a built-in drive motor (not shown) and a cylindrical body 19 penetrating the upper wall of the granular material tank 2.
and a mount 19B to which a protective cylinder 19d surrounding the rotary shaft 19c connected to the motor shaft 19b is mounted, and a flat blade type detector 20 mounted to the lower end of the rotary shaft 19c and rotating. The cylindrical body 19a is vertically fixed at the penetrating portion of the upper wall of the powdery granular material tank 2, and the upper flange 19e is fixed to the base 19 with bolts 19g.
The level meter main body 19A fixed to the flange 19f of B and mounted on the gantry 19B is held in a vertical state.
The level meter main body 19A is covered with a casing 19C outside the granular material tank 2 to prevent dust or the like from adhering. The above-described detector 20 is rotated by the drive motor. However, as the loading of the granular material 1a progresses, the accumulation surface 21 of the granular material rises, and when it touches the detector 20, the drive motor is stopped by the resistance thereof. The stop signal is output to the loading control means 9 (see FIG. 5).
As shown in FIG. 5, an air vent valve 22 is installed at the upper part of the granular material tank 2, and a drain valve 23 is installed at the bottom of each of the storage chambers R1 to R4. Air release valve 2
Reference numeral 2 denotes a valve which is opened when the granular material is loaded in the manholes 3A to 3D, the drain valve 23 is opened before loading to exhaust the internal air, and then closed. Note that both the air release valve 22 and the drain valve 23 are driven to open and close by a cylinder type opening / closing mechanism having the same configuration as that of the above-described tank-side loading valve A1 and the like (see FIG. 6).

The loading device 30 for powder and granules having such a structure operates as follows, and the discharge port 11A on the silo side is provided.
Can be loaded into the powder tank 2. The control will be described with reference to the flowcharts of FIGS. 10 and 11 and the time charts of FIGS. 12 and 13. The vehicle 1 (see FIG. 2) arriving at the loading base is placed in the manhole 3 of the granular material tank 2 mounted thereon.
The vehicle is stopped so that the positions of the loading ports 4A to 4D (see FIG. 1) in A to 3D are directly below the discharge ports 11A on the hopper H side of the silo. Each control device mounted on the granular material tank 2 is electrically connected to the loading control means 9 mounted on the vehicle 1 in advance, but when the vehicle stops, as shown in FIG. The control device on the silo side at the base is electrically connected to the loading control means 9 via each connector 24. When a command to start loading is given, as shown in FIG. 5, the detectors 20 (see FIG. 8) of the level meters L1 to L4 are rotated by a command signal from the loading control means 9 (step 1, hereinafter). , S1, etc.), the air vent valve 22 and the drain valve 23 (see FIG. 3) are opened, and the inside of the powder tank 2 is brought to atmospheric pressure. Air release valve 22 and drain valve 2
3 is immediately closed, and the loading opening / closing bodies 5A to 5D in the loading ports 4A to 4D of the granular material tank 2 are opened by a command signal from the loading control means 9 (S2). When it is confirmed from the signal from the manhole opening / closing detection switch 8 that the loading opening / closing bodies 5A to 5D are open (S3), each loading cylinder 14 is extended, the telescopic tube 12 is extended, and the inverted conical stacking is performed. The loading pipes 13A to 13D are lowered toward the loading ports 4A to 4D (S4). In the meantime, if the loading tube lifting / lowering detection switch 16 does not operate, the extension operation of the loading cylinder 14 is continued. The stop position of the vehicle 1 is shifted and the longitudinal axis N1 of the manholes 3A to 3D and the inverted conical loading pipe 13A to 13D.
Even if the vertical axis N2 of 13D does not match,
The inverted conical surface 13b is the opening edge 4a of the loading ports 4A to 4D.
While being guided by (see FIG. 1), the link mechanism including the paired loading cylinders 14 and the holding member 13a can be transformed from a rectangle into a parallelogram by the rotatable joint 15, The axis N1 coincides with the vertical axis N2. Therefore, the inverted conical loading tubes 13A to 13D
Is easily fitted to the loading ports 4A to 4D. When the fitting operation is completed, the extension of the loading cylinder 14 is maximized, and this is detected by the loading pipe lifting / lowering detection switch 16 (S
5). In response to a command signal from the loading control means 9, the tank-side loading valves A1, B1, C1, and D1 that shut off the loading ports 4A to 4D of the tank-side loading pipes 4 and the inside of the granular material tank 2 are opened. At the same time as the opening (S6), the air release valve 22 is opened again. Next, a rotary valve A which is a discharge control valve on the hopper H side.
2, B2, C2 and D2 are rotated (S7), and the discharge valves A3, B3, C3 and D3 are opened with a slight time delay,
A timer built in the loading control means 9 operates (S8).
When the discharge valves A3 to D3 are opened in this way, the cement or the like stored in the silo falls down the discharge pipe 11 connected to the hopper H, and the inverted conical loading pipes 13A to 13D.
And, through the manholes 3A to 3D, they are loaded into the respective accommodation chambers R1, R2, R3, R4 of the granular material tank 2. Since the time required for this loading is generally 10 minutes to 15 minutes, the time set in the timer is, for example, 5 minutes to 13 minutes. Then, when the level meters L1 to L4 provided in the accommodation rooms R1 to R4 independently detect the fullness of the granular material 1a within a predetermined time (S9).
A, S9B, S9C, S9D), the discharge valves A3 to D3 are closed for each manhole (S10 to S13), and the rotation of the rotary valves A2 to D2 is stopped with a slight time delay (S14). If the drive motor that is rotating the sensing element 20 is stopped before the lapse of 5 minutes, or if the rotation is continued and the full state is not detected even after the lapse of 13 minutes or more, for example, the level meters L1 to L4 fail. It is determined that there is, and it is determined whether or not the worker checks and continues the loading operation. When each of the storage chambers R1, R2, R3, and R4 is fully loaded with the granular material 1a, the air release valve 22 is closed,
An operation end signal of the valve opening / closing switch 17 is input to the loading control means 9. Further, in response to a command from the loading control means 9, the tank-side loading valves A1, B1, C1, and D1 are simultaneously closed (S15), and the communication between the inside of the granular material tank 2 and the discharge pipe 11 is cut off. By the operation of the limit switch 10c, the closing signals of the tank side loading valves A1 to D1 are input to the loading control means 9. In response to the next command signal, each loading cylinder 14 is contracted, and the inverted conical loading pipes 13A to 13D rise and separate from the loading ports 4A to 4D (S16). Subsequently, each air cylinder 7 is extended to close the loading opening / closing bodies 5A to 5D (S17), and further, each manhole opening / closing detection switch 8 is operated, and a closing signal is input to the loading control means 9. . On the other hand, when the loading tube lifting / lowering detection switch 16 detects that the loading cylinder 14 has been completely contracted, the loading operation to the granular material tank 2 is completed.

As can be understood from the above description, according to the powder and grain volume loading device of the present invention, the operation of the loading control means makes it possible to operate the loading / unloading base at the loading station with almost no need for individual manual operation by the operator. The operation of loading the granular material such as cement into the granular material tank is automatically performed, and the efficiency of the loading operation can be improved.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a powder / volume loading device of the present invention.

FIG. 2 is an overall view in which a granular material tank to which the present invention is applied is mounted on a vehicle.

FIG. 3 is an operation system diagram of a tank-side control device including an actuator drive system for a loading opening / closing body.

FIG. 4 is a structural explanatory view of a tank-side loading pipe and associated equipment.

FIG. 5 is an overall configuration and control system diagram on the powder tank side according to the present invention.

FIG. 6 is a configuration diagram of an operation control system of a tank side loading valve.

FIG. 7 is an operation system diagram of a silo-side control device including a discharge control valve and a drive system of a loading cylinder.

FIG. 8 is an explanatory view of a mounted state of a level meter in the powdery material tank.

FIG. 9 is a control system diagram of a silo-side device.

FIG. 10 is a first half of a flowchart for controlling a loading operation.

FIG. 11 is the latter half of the flowchart for controlling the loading operation.

FIG. 12 is a part of a time chart illustrating an operation of each control device.

FIG. 13 is a remaining part of the time chart explaining the operation of each control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vehicle (transportation trailer), 1a ... Granular material, 2 ... Granular material tank, 3A-3D ... Manhole, 4A-4D ... Loading port, 4a ... Opening edge, 5A-5D ... Loading opening / closing body (lid) body),
7 Actuator (air cylinder), 8 Manhole opening / closing detection switch, 9 Loading control means, 11 Discharge pipe, 11A Discharge port, 12 Telescopic pipe, 13A to 13D
Inverted conical loading pipe (loading pipe), 13b ... inverted conical surface, 14 ...
Loading cylinder, 15: Swivel joint (ball joint), 16: Cylinder expansion / contraction detection switch, 17: Valve open / close switch, A2, B2, C2, D2: Discharge control valve (rotary valve), H: Hopper, L1 L4: level meter, N1, N2: vertical axis.

Claims (2)

(57) [Claims] 1. A granular material can be loaded from a silo at a loading base through a manhole at an upper portion of a granular material tank mounted on a vehicle and opened for loading the granular material. In the powder volume loading device, a loading opening / closing body that opens and closes the loading opening is provided in an upper portion of the manhole, and an actuator for operating the loading opening / closing body is mounted, and the opening / closing is performed. A manhole open / close detection switch for detecting is provided, and a flexible telescopic tube is connected to a discharge port of a hopper provided at a lower end of the silo, and a lower end of the telescopic tube is fitted to the manhole. A loading pipe to be attached is attached,
The discharge pipe having the discharge port is provided with a discharge control valve for controlling the discharge of the loaded granular material, and a valve open / close switch for detecting the open / close of the discharge control valve is provided. The pipe is connected to the loading cylinder, and a cylinder expansion / contraction detection switch for detecting the maximum extension and the maximum contraction of the loading cylinder is provided. When the manhole open / close detection switch detects that the loading opening / closing body is completely opened, the loading cylinder extends the telescopic tube, and the loading cylinder is mounted. When the maximum extension state of the cylinder is detected by the cylinder expansion / contraction detection switch, the discharge control valve is opened, and the level meter completes the loading of the predetermined amount of the granular material. When the discharge control valve is released, the discharge control valve is closed, and when the close of the discharge control valve is detected by the valve opening / closing switch, the telescopic tube is contracted by the loading cylinder, and the maximum contraction of the loading cylinder is caused by the cylinder expansion and contraction. A loading control means for issuing a command to close the loading opening / closing body by an actuator when detected by a detection switch is provided. 2. A granular material can be loaded from a silo at a loading base through a manhole which is located above a granular material tank mounted on a vehicle and is opened for loading the granular material. In the powder and grain loading device, a discharge port of a hopper provided at a lower end portion of the silo includes:
A flexible telescopic tube is attached, and at the lower end of the telescopic tube, an inverted conical loading pipe having an outlet outer diameter smaller than the opening diameter of the manhole and having a diameter increasing upward is connected. The hopper side and the inverted conical loading pipe,
The loading cylinder is connected by a pair of loading cylinders, and both ends of the loading cylinder are attached via a rotatable joint, and the loading cylinder is extended into the open manhole to form an inverted conical loading. When fitting the pipe, even if the vertical position of the manhole does not coincide with the vertical axis of the inverted conical loading pipe due to the shift of the stop position of the vehicle body, the inverted conical loading pipe of the inverted conical loading pipe is manhole shaped. By lowering while guiding to the side opening edge, and allowing the loading cylinder to tilt in a vertical position, the inverted conical loading pipe can be fitted to the manhole with both longitudinal lines aligned. An apparatus for embedding powder particles in an on-vehicle powder tank, characterized in that it is made possible.