JPS6221687B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a discharge device for discharging granular materials such as cement and fertilizer packed into a tank.

Traditionally, cement has been transported in bags,
There are two ways to transport the cement: one is to transport it in a tanker truck, but in the first case, it is packed in bags at the cement factory (base) and then the bags are opened at the work site to take out the cement, which requires manpower and reduces labor costs. In addition to being expensive, the bags are disposable and are very uneconomical.

In addition, in the latter case, the cement transported by tanker truck is pumped with air and refilled into a large cement silo (approximately 20 tons to 100 tons) installed at the work site. It is extremely expensive, costing several million yen, and cannot be used in small work sites.

Therefore, transportation of powder and granules in small tanks (approximately 2 tons) was considered as an intermediate method between bagging and large cement silos, but it was possible to transport powder and granules in small tanks safely and easily on site. The company has developed a device that discharges powder and granular materials.

Such a device for discharging powder and granules stored in a small tank for transporting powder and granules has a filling port on one side and a discharge port on the other side, and at least two annular protrusions on the outer peripheral surface of the body. A fixed pedestal with a mounting surface for rollingly guiding silo-shaped small tanks for transporting powder and granular materials arranged side by side is gently sloped downward toward the transfer direction, and a fixed pedestal connected to the fixed pedestal to load one tank. The tank receiving stand attached to the movable stand can be raised and moved in a direction perpendicular to the tank transport direction, and the tank is vertically erected on the side of the movable stand. The gist is that a support base is installed to engage and hold the

The discharge device of the present invention unloads the tank loaded on the loading platform of a truck and transported at the work site and discharges the powder and granules inside the tank. The tank is placed on its side and rolled on a gentle downward slope toward the movable pedestal. It rolls on a guide rail.

The tank transferred from the fixed pedestal to the movable pedestal is fixed and held on the tank cradle on the movable pedestal by a load tightening jack, etc., and the tank pedestal is moved by a hydraulic cylinder or an air cylinder in a direction perpendicular to the tank transfer direction. The powder and granular material can be discharged by raising the tank upright, moving the tank from a horizontal position to a vertical position, and opening the discharge port in this state.

Hereinafter, one embodiment of the present invention will be described based on the drawings. A is a fixed pedestal, B is a movable pedestal, and C is a small tank for transporting powder and granular materials. The movable pedestal B is connected to the tip of the fixed pedestal A. It is installed without.

The fixed frame A is formed using a metal L-shaped angle or square pipe to a desired length (for example, a length that allows three tanks to be placed side by side) at a height that allows smooth transfer from the truck bed. On the top surface is a metal pipe 22 of a small tank C for transporting powder and granular materials.
The arc-shaped guide rails 1 and 1' into which the tank is fitted are fixed and tilted gently downward in the transport direction, so that the tank mounted thereon can freely roll.

Further, on the sides of the guide rails 1 and 1' of the fixed frame A, stopper plates 2, 2', and 2'', which lock and hold small tanks C for transporting powder and granular materials one by one, rotate at predetermined intervals. The stopper plate 2,
A spring 4 is stretched across the pedestal A and the protruding piece 3 connected to the stopper plates 2' and 2''.
2', 2'' are always elastically biased in the direction of contact with the tank wall surface, and the opposing front and rear stopper plates 2, 2, 2', 2', 2'', 2'' are stopper plates on the pedestal side. 5 and the stopper plate 2,
A locking pin 8 is inserted across the through hole 7 opened at 2′, 2″.
By fitting and engaging the stopper plates 2, 2,
2', 2', 2'', 2'' are locked to support the tank and prevent the tank from rolling.
In addition, the opposing stopper plates 2, 2, 2', 2',
The locking pins 8 can be engaged and disengaged from the latching pins 2'' and 2'' independently in the front and rear, or as shown in the figure,
It is of course better to connect the front and rear latching pins 8, 8 with a single motion.

The movable pedestal B, which is installed in a connected manner at the tip of the fixed pedestal A, is made of a metal L-shaped angle or square pipe, etc., and has the same width as the fixed pedestal A, and can accommodate only one tank A, just like the fixed pedestal A. It is formed to a length that can be mounted and held, and a tank holder 10 is mounted on the upper part with a bearing 11.
The tank holder 10 is horizontally supported by a rod 12 of a hydraulic cylinder 12, and when the hydraulic cylinder 12 is actuated, the tank holder 10 moves up and down about a shaft 13 that can be inserted into a bearing 11.

Guide rails 1, 1' curved in an arc like the guide rails 1, 1' provided on the fixed frame A are fixed to the tank holder 10, and stopper plates are provided on the sides of the guide rails 1, 1'. 2 and 2 are rotatably attached, and are elastically biased by a spring 4 in the direction of abutting and engaging with the tank C, and furthermore, a hole 6 of a stopper plate 5 on the pedestal side and a hole formed in the stopper plate 2 are connected to each other. The stopper plate 2 is locked in a state in which it cannot rotate by fitting and engaging the locking pin 8 across the hole 7, and the front and rear locking pins 8, 8 are connected by a connecting rod 9, and one side It is made operable.

Further, a support plate 14 that abuts and engages with the edge of the cylindrical portion of the tank A is fixed to the center of the rotating side edge of the tank holder 10, and a load tightening jack is provided at the middle of the holder in the width direction. 15 is installed, tank holder 1
When the tank mounted on the cradle 10 is erected, it is designed to prevent the tank from falling off the pedestal 10.

Further, on the rotating side of the tank holder 10 in the movable pedestal B, a support pedestal 16 assembled into a substantially square plane is installed, and a small tank C for transportation that can be erected vertically by the operation of a hydraulic cylinder 12 is installed. It is something to receive and hold.

The small tank C for transporting powder and granular materials has a cylindrical tank body 17 with one side formed in a truncated conical shape, with a small diameter opening serving as a discharge port 18, and a large diameter opening on the other side serving as a filling port 19. , and a washer 20 is wound and fixed in parallel at intervals on the outer peripheral surface of the tank body 17, and a metal pipe 2 is mounted on the washer 20 via a reinforcing rib 21.
2 is wound and fixed, and this metal pipe 22 fits into the guide rails 1, 1' of the fixed pedestal A and the guide rails 1, 1' of the movable pedestal B, and is mounted and held there. .

Further, the discharge port 18 and the filling port 19 are provided with lids 2, respectively.
3 and 24 are attached. In the figure, 25 is a screw conveyor that conveys powder such as cement discharged from a small tank C for transporting powder and granules to a mixer, etc., 26 is a carry-out platform for carrying out the tank from movable platform B, and 27 is a truck. be.

With the above configuration, the small tank C for transporting powder and granular materials loaded on the truck 27 and transported to the work site is
Lower them from the truck loading platform onto the fixed frame A, and engage and hold them one by one at predetermined intervals with the stopper plates 2, 2', 2''. Pull out the latching pin 8 from each stopper plate 2, 2', 2''. This makes it possible to rotate, and the tank rolls under its own weight and is transferred onto the movable frame B. The tank C, which is mounted and held on the guide rails 1 and 1' of the tank holder 10 on the movable frame B, is tightened and fixed to the tank holder 10 with the load tightening jack 15, and then the hydraulic cylinder 12 is operated to tighten the tank C. When the pedestal 10 is pushed up, the tank C shifts from a horizontal state to a vertical state, and can be held vertically upright with the discharge port 18 on the lower side by the support 16 on the side of the movable pedestal B. After standing up the small transport tank C, the powder a can be discharged by removing the lid 23 of the discharge port 18 and opening it. After discharge, the tank holder 10 is moved horizontally by operating the hydraulic cylinder 12. When the tank C is returned to its original position, the tank C is placed on its side, and the used empty tank can be discharged by removing the cargo tightening jack 15 and transporting the tank C to the unloading platform 26. Incidentally, the used empty tank can be used by transporting it to the powder manufacturing base and refilling it.

Since the discharging device for tank-packed powder and granular material of the present invention has the above-described structure, it can be safely and easily discharged smoothly, and since the structure is simple, it can be manufactured at a low cost. It is very convenient for small-scale work sites.

[Brief explanation of the drawing]

The drawings show an embodiment of the device of the present invention, in which Fig. 1 is a front view, Fig. 2 is a plan view of the same, Fig. 3 is an enlarged front view of main parts, and Fig. 4 is a view taken from 4-4 in Fig. 3. FIG. 5 is a partially cutaway side view showing the stopper structure of the tank holder of the movable frame, and FIG. 6 is an enlarged view of the circled part in FIG. 4. In the figure, A: Fixed pedestal, B: Movable pedestal, C: Small tank for transporting powder and granular materials, 1, 1': Guide rail,
10: Tank holder, 12: Hydraulic cylinder, 1
6: Support stand.

Claims (1)

[Claims] 1. A guide rail for rollingly guiding a small silo-shaped tank for transporting powder and granular materials, which has a filling port on one side and a discharge port on the other side, and has at least two annular protrusions arranged in parallel on the outer peripheral surface of the body. It consists of a fixed pedestal that is gently tilted downward in the direction of transfer, and a movable pedestal that is connected to the fixed pedestal and holds a single tank. It can be raised freely in the direction perpendicular to the direction,
A discharging device for tank-packed powder and granular material is provided with a supporting stand that engages and holds a vertically erected tank on the side of the movable stand.