JPH05124720A - Chute for belt conveyor - Google Patents

Abstract

PURPOSE:To provide a chute of belt conveyor for powder/lump form material, with which the material is unlikely to attach, which is durable against abrasion, and belt is prevented from eccentric run. CONSTITUTION:A rotary body 20 is installed below a dropping path for a transport material released from a conveyor belt 11, situated upstream. The rotary body 20 has a drum 21 fitted with a shaft, and a number of projecting pieces 22 are provided on the outer surface of this drum 21 at a certain spacing in the drum axial direction, and the spaces between the projecting pieces 22 are allowed to work as sumps for the material, wherein the shaft is borne by dollies 25, 26 through bearings 27, 28. The rotary body 20 is rotated by a motor 29 fitted with a reduction gear and is movable fore and aft by power cylinders 31, 32 connected with the dollies. A chute is thereby precluded from wear, and attachment of the material is precluded. Even with alteration of the sort of material, eccentric run of a downstream conveyor can be prevented by changing the position of the rotary body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chute provided at a connecting portion of a conveyor belt conveyer for powder and lumpy raw materials.

[0002]

2. Description of the Related Art A chute provided at a connecting portion of a belt conveyor for transporting powdery and lumpy raw materials must consider the following points so as not to hinder the transportation. (1) It must be resistant to abrasion by the raw material being conveyed. (2) The sticky raw material easily adheres to the chute and causes the shoot to be clogged. Therefore, when the raw material is conveyed, the raw material is unlikely to adhere to the chute. (3) In order to prevent the deviation of the downstream belt conveyor, it is necessary to guide the raw material so that it is placed on the center of the downstream belt conveyor.

Therefore, the following measures have been taken. That is, as shown in FIG. 5, a chute that handles highly abradable raw materials is provided with one or more shelf-shaped stone boxes 2 projecting from the inner wall of the chute in the dropping path of the raw material of the chute 1. The raw material is deposited on the second raw material 2, and the chute is prevented from being worn by receiving the conveying raw material 4 falling on the surface of the deposited raw material 3. The raw material is guided to the downstream belt conveyor 5 while reducing the falling speed. As a patent document that has been published regarding wear prevention, there is an actual disclosure of Shokai 60.
There is a publication of -180217.

A chute for handling highly adherent raw materials is shown in FIG.
As shown in FIG. 3, a polymer resin liner 6 is attached to the raw material dropping path of the chute 1 to prevent the raw material from adhering.

When a plurality of different brands of raw materials are conveyed by a single conveyor system, the dropping path of the raw materials changes depending on the brand. In such a case, as shown in FIG. 7, a buffer plate 7 that is rotatable around a rotation shaft fixed to one end is provided in the raw material falling path of the chute 1 to adjust to the change of the raw material falling path. By adjusting the set angle θ of the buffer plate 7, the raw material is placed on the center of the downstream belt conveyor 5 to prevent the belt from being biased (or meandering). As a patent document relating to bias prevention, there is Japanese Utility Model Laid-Open No. 2-119420.

[0006]

The one provided with a stone box is excellent as a measure against wear, but when handling a sticky raw material, the raw material adheres to the stone box and grows, resulting in clogging of the chute. Therefore, there is a problem that a person must regularly remove the deposit.

The one fitted with a polymer resin liner is
Although it is possible to prevent the adhesion of the raw material, there are problems that it is weak against abrasion and the material is expensive (4 to 5 times that of the iron plate liner).

The buffer plate provided has a problem of wear or adhesion of the buffer plate. And, a chute that can solve the wear prevention, the adhesion prevention, and the bias prevention of the downstream conveyor together has not been proposed yet. An object of the present invention is to provide a shoot capable of solving the above three problems together.

[0009]

DISCLOSURE OF THE INVENTION The present invention is intended to achieve the above-mentioned object, and conveys powder or lump raw material conveyed by a belt conveyor to the inside of a chute for guiding it to the next belt conveyor, and conveys it to the outer periphery. It is a chute for a belt conveyor characterized in that a rotating body having a raw material reservoir is provided so as to be movable in the horizontal direction.

[0010]

Since the reservoir for the transported raw material is formed on the outer periphery of the rotating body, the raw material is accumulated in the reservoir at the portion for receiving the falling raw material, so that abrasion of the rotating body can be prevented.

When the rotating body is rotated, the raw material accumulated in the reservoir is discharged when the reservoir rotates downward, and the adherence of the raw material is prevented.

When the brand of the raw material to be conveyed changes and the dropping path changes, the raw material can be placed on the center of the downstream belt conveyor by moving the rotating body in the horizontal direction accordingly.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a belt conveyor chute of the present invention, and FIG. 2 is a partially cutaway side view of the belt conveyor chute of the present invention. In the figure, 11 is an upstream conveyor belt, and 12 is a head pulley. A rotating body 20 is provided below a path through which the feed material 4 discharged from the upstream conveyor belt 11 falls. The rotary body 20 has a large number of protruding pieces 22 mounted on the outer peripheral surface of the shaft-equipped drum 21 at intervals and in the body length direction, and the raw material reservoir 35 is provided between the protruding pieces 22.
I am trying. FIG. 3 shows another example in which a large number of ring-shaped projecting pieces 36 are provided on the outer periphery of the shaft-equipped drum 21 at intervals to form the reservoirs 35 in a grid pattern, and FIG. 4 is shown in FIG. Another example in which the reservoir 35 is formed by providing the above is shown.

Traveling rails 23 and 24 are laid on the outside of both side walls of the chute 1 along the traveling direction of the upstream belt conveyor 11, and a carriage 25 is laid on the rails 23 and 24.
26 is on board. The shaft of the shaft-equipped drum 21 is rotatably supported by bearings 27, 28 mounted on the carriages 25, 26 through an elongated hole formed in the side wall. Trolley 26
A motor 29 with a speed reducer is mounted on the top, and the shaft of the shaft-equipped drum 21 is connected to the motor shaft via a joint 30. Therefore, the shaft-equipped drum 21 is driven to rotate by the motor 29. Power cylinders (motor-driven ball screw cylinders) for trucks 25 and 26
Cylinder rods 33 and 34 of 31 and 32 are connected, and the cylinder rods 33 and 34 of the power cylinder are connected.
By expanding and contracting, the carriages 25 and 26 are moved to the rails 23 and 24.
Can move forward and backward. Expansion and contraction of the power cylinder rods 33 and 34 are performed in synchronization.

Shaft-equipped drum 2 when changing the brand of the material to be conveyed
The operation 1 is performed as follows. The horizontal discharge distance L (see FIG. 2) of the material 4 to be conveyed on the chute 1 changes depending on the particle size, specific gravity, etc. of the material. The horizontal discharge distance L of coal is larger than that of lump ore (in the case of coal transportation, the speed change gear is switched to increase the belt speed), so when the raw material to be transported is changed from lump ore to coal, The power cylinder is contracted by the difference between the horizontal discharge distance L of the ore and the coal L, and in the case of the opposite raw material change, the power cylinder is extended by the difference L to receive the raw material and drop it on the downstream conveyor.

The shaft-equipped drum 21 is rotated during the transportation of the raw material, and the rotation direction of the raw material is such that the raw material collides with the shaft-equipped drum 21 and is inverted and dropped. Rotate in the direction indicated.

[0017]

Since the present invention is configured as described above, it is possible to prevent the chute from being worn and preventing the raw materials from adhering. Further, even if the brand of the material to be conveyed is changed, the position of the shaft-equipped drum can be easily changed, and thus the deviation of the downstream belt conveyor can be prevented.

[Brief description of drawings]

FIG. 1 is a plan view of a belt conveyor chute according to the present invention.

FIG. 2 is a partially cutaway side view of the belt conveyor chute of the present invention.

FIG. 3 is a diagram showing a second embodiment of the reservoir portion of the drum with shaft according to the present invention.

FIG. 4 is a view showing a third embodiment of the reservoir portion of the drum with shaft according to the present invention.

FIG. 5 is an explanatory diagram of a conventional chute with wear prevention measures.

FIG. 6 is an explanatory view of a conventional chute with a measure for preventing adhesion.

FIG. 7 is an explanatory view of a conventional chute with a buffer plate attached.

[Explanation of symbols]

 1 Chute 11 Upstream Conveyor Belt 12 Head Pulley 20 Rotating Body 21 Shaft Drum 22 Projecting Piece 27 Bearing 28 Bearing 25 Carriage 26 Carriage 29 Motor with Deceleration 31 Power Cylinder 32 Power Cylinder 33 Cylinder Rod 34 Cylinder Rod 35 Reservoir

Claims (1)

[Claims] 1. A rotator having a reservoir for transporting raw material on its outer periphery is provided movably in a horizontal direction inside a chute that guides powder and lumpy raw material to be transported by a belt conveyor to the next belt conveyor. Characteristic belt conveyor chute.