JP5916428B2 - hopper - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a hopper installed on a belt conveyor in order to load an object to be conveyed such as coal, coke, and steel slag onto the belt conveyor.

  Conventionally, in order to load or ship a bulk material such as coal, coke, steel slag, etc., the material to be transported is transported to a desired point by a belt conveyor. Is placed on the belt conveyor (for example, Patent Documents 1 to 3).

  The object to be conveyed continuously supplied to the upper surface opening of the hopper is continuously discharged from the bottom surface opening of the hopper and conveyed on the belt conveyor.

JP 2009-234664 A JP 2011-84379 A Japanese Patent No. 3801382

  However, due to factors such as misalignment between the supply and discharge timings, such as the transported object continues to be thrown into the hopper despite the conveyor being stopped, the transported object is clogged in the hopper and is accumulated without being discharged. However, there is a case where it becomes a blocked state.

  When such a closed state occurs, the conveyed object overflows from the hopper and overload is applied to the belt conveyor. Therefore, the supply of the conveyed object to the hopper is temporarily stopped and the belt conveyor is The worker stopped, climbed on the belt conveyor, climbed over the wall of the hopper, entered the hopper, and manually discharged the conveyed object from the hopper using a scoop or the like. Such work involves the danger of ascending and descending, and there is a problem that the hopper has poor scaffolding and poor workability. Some hopper walls have a height of, for example, 1 m or more, and it requires considerable labor to scoop out the deposits in the hopper beyond the height of the wall.

  Then, this invention makes it the main objective to provide the hopper which can reduce an operator's labor and can eliminate the obstruction | occlusion state of the to-be-conveyed object in a hopper.

  In order to achieve the above object, a hopper according to the present invention is a hopper having a bottom opening that is installed on a belt conveyor, and opens and closes a preliminary discharge port formed on a rear wall of the hopper, and the preliminary discharge port. And an opening / closing door.

  It is preferable to include a hinge portion that swingably connects the opening / closing door to the outer surface of the rear wall of the hopper, and a lock unit that locks the opening / closing door in a closed position.

  The locking means includes a through hole formed in the open / close door, a bolt inserted into the through hole, and a screw hole formed in the rear wall of the hopper and into which the bolt is screwed. Is preferred.

  It is preferable that the hinge portion is disposed at a position away from the preliminary discharge port, and the through hole is formed in a lower portion of the open / close door.

  The preliminary discharge port is preferably formed in an arcuate cutout at the lower end of the rear wall.

  It is preferable that the through hole is a long hole so that the opening degree of the door can be adjusted by the degree of screwing of the bolt.

  According to the present invention, the deposit can be discharged by opening the open / close door on the rear wall of the hopper, so that the operator can enter the hopper and do not discharge the transferred object beyond the high wall of the hopper with a scoop. Therefore, labor can be reduced.

It is a top view which shows one Embodiment of the hopper which concerns on this invention. It is a side view of the hopper of FIG. It is a rear view of the hopper of FIG. It is a front view of the hopper of FIG. FIG. 4 is an enlarged view of FIG. 3. FIG. 6 is an exploded view of FIG. 5. FIG. 2 is an enlarged rear view showing a state where a tail skirt is attached to the hopper of FIG. 1. It is a principal part expanded side view of the hopper of FIG. It is an enlarged view which shows the example of a change of the opening / closing door which is a component of this invention. It is a side view which shows the state which installed the hopper of FIG. 1 on the conveyor belt.

  Hereinafter, a preferred embodiment of a hopper according to the present invention will be described with reference to FIGS. In addition, the same code | symbol was attached | subjected to the same component through the whole figure.

  As shown in FIGS. 1 to 4, the hopper 1 has a bottomed box shape with a bottom opening 2, and includes left and right side walls 3, 4, a front wall 5, and a rear wall 6. As shown, it is placed and attached to the rear end of the belt conveyor B in the transport direction. In addition, the belt conveyor B is a well-known thing, and may be a self-propelled type or a fixed type.

  The front wall 5 of the hopper 1 has an inverted trapezoidal shape, and the lower end 5a has a gently curved shape with an upward projection. As shown in FIG. 6, a preliminary discharge port 7 is formed in the rear wall 6 of the hopper 1. The preliminary discharge port 7 is for temporarily discharging the object to be transported in the hopper 1 to eliminate the closed state, and is normally closed by the open / close door 8.

  In the illustrated example, the open / close door 8 is swingably connected to the outer surface of the rear wall 6 of the hopper 1 by a hinge portion 9. If the door is attached to the inside of the rear wall 6 of the hopper 1, it may be difficult to open the door due to deposits in the hopper 1, but the door 8 should be disposed outside the rear wall 6. For example, the operation of opening the door 8 is not hindered by the deposit in the hopper 1.

  When the open / close door 8 is attached to the outer surface of the rear wall 6, a lock means for locking the open / close door 8 in the closed position is provided in order to close the open / close door 8 against pressure from deposits in the hopper. In the illustrated example, a bolt 10 inserted through a through hole 8 a formed in the open / close door 8 is screwed into a screw hole 11 (FIG. 6) formed in the rear wall 6 of the hopper 1.

  Since there is a risk that the opening / closing door will suddenly open and jump up due to the pressure of the deposits in the hopper 1 at the moment when the locking means is released, as shown in FIG. The opening degree of the open / close door 8 may be gradually adjusted according to the degree of screwing 10. In this case, in order to ensure the required degree of opening of the open / close door 8, a long bolt 10 corresponding to the opening degree can be used.

  It is preferable that the hinge part 9 is arrange | positioned in the position away from the preliminary discharge port in the upper position higher than the upper edge of the preliminary discharge port 7 like the example of illustration. If coal powder or the like that is the object to be conveyed enters the movable part of the hinge part 9, the hinge operation may be hindered, but if the hinge part 9 is arranged at a position away from the preliminary discharge port 7, Since coal powder or the like, which is a transported object discharged from the preliminary discharge port 7, does not directly hit the hinge part 9, it is possible to prevent an operation failure of the hinge part 9.

  As the shape of the preliminary discharge port 7, an arch shape as shown in FIG. 6 is preferable because stress concentration is small. The shape of the preliminary discharge port 7 may be an arc shape or a semicircular shape.

  A tail skirt 12 as shown in FIG. 7 can be further attached to the open / close door 8. The tail skirt 12 is formed in a substantially square shape with a plate-like hard rubber or the like. When the hopper 1 is installed on the belt conveyor B, the tail skirt 12 is slidably contacted with the belt of the belt conveyor B to be conveyed on the belt. Is to prevent leaking backward. The tail skirt 12 is formed with a hole 12 a through which the bolt 10 is inserted, and is screwed to an angle fitting 13 welded to the open / close door 8. The side walls 3 and 4 are provided with metal fittings 14 for fixing side skirts (not shown).

  According to the hopper 1 having the above-described configuration, when an object to be conveyed is clogged due to clogging in the hopper 1, the door 8 is opened to discharge the object to be deposited in the hopper 1. Therefore, it is not necessary for the operator to enter the hopper 1 to work.

  The operation of discharging the deposit from the open / close door 8 formed on the rear wall 6 of the hopper 1 is compared with the conventional operation of entering the hopper 1 and discharging the deposit beyond the hopper wall with a scoop. Therefore, it becomes much easier and the labor of the discharge work is reduced.

DESCRIPTION OF SYMBOLS 1 Hopper 2 Bottom face opening 3 Side wall 4 Side wall 5 Front wall 6 Rear wall 7 Preliminary discharge port 8 Opening lid 9 Hinge part 10 Bolt (locking means)

Claims (3)

A hopper with a bottom opening that is installed on a belt conveyor,
A preliminary discharge port formed in the rear wall of the hopper;
An opening and closing door for opening and closing the preliminary discharge port;
A hinge portion that swingably connects the open / close door to an outer side surface of the rear wall of the hopper, and a lock unit that locks the open / close door in a closed position.
The locking means includes a through hole formed in the vicinity of the end of the open / close door on the side away from the hinge portion, a bolt inserted into the through hole, and a bolt formed on the rear wall of the hopper. A screw hole to be screwed in,
The hopper has a screwing / removing direction along the opening / closing direction of the opening / closing door, the through hole is a long hole, and the opening degree of the opening / closing door can be adjusted according to the screwing degree of the bolt. 2. The hopper according to claim 1, wherein the hinge portion is disposed at a position away from the preliminary discharge port, and the through hole is formed in a lower portion of the opening / closing door. 3. The hopper according to claim 1, wherein the preliminary discharge port is notched in an arch shape at a lower end of the rear wall.

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