JPH06298331A - Dust removal device in belt conveyor - Google Patents

Abstract

PURPOSE:To provide a dust removal device in a belt conveyor, capable of preventing the sticking of dust effectively by means of a special way that is unresistant to the drive of a belt. CONSTITUTION:A lot of fins 2 receiving dust upon being flat down on the surface of a belt 1, are spread over this belt 1 to be installed in space between a driving pulley 5 at the front end and a driven pulley at the rear end, while they are reversibly installed in front and in the rear, and then each fin 2 is formed into such a length as being lapped on a base end of succeeding fins 2 so as to make the belt 1 coverable with the fins 2 over the full length, thereby constituting a dust removal device in a belt conveyor C. In addition, a friction gear 3 is installed beneath the driving pulley 5 so as to be rubber with the fin 2 as rotating in the same direction of the pulley. With this constitution, dust removal can be done completely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly applied to a belt conveyor for conveying dust such as mineral powder so that the dust is not discharged at the conveying end and remains attached to the belt. Of dust removal device of.

[0002]

2. Description of the Related Art A belt conveyor is one in which an endless belt is hung between a driving pulley and a driven pulley to convey articles by circulating the belt. Since a material protected by is used and dust easily adheres from the material, a dust removing device is generally provided.

A conventional device for removing dust on a belt conveyor is equipped with a scraping member such as a plate or a brush at the reversing destination of the belt. Energize, or
It is designed to adjust the contact state with screws.

[0004]

When dust adheres to the belt, it causes the belt to be cut,
Accidents of the belt conveyor are likely to occur due to wear of the rollers on the return side. Further, there is a disadvantage that dust falls on the return side, and a great deal of labor and cost are required for cleaning dust scattered below.

According to the conventional dust removing device, the removal of the residual dust is incomplete, and when the force of pressing the scraping member against the belt is increased, the removal of the residual dust is improved. Therefore, if the removal efficiency is increased, there is a problem that it becomes a resistance for driving the belt and is easily worn.

The present invention has been made in view of the above circumstances.
An object of the present invention is to provide a dust removing device for a belt conveyor, which can effectively prevent dust from adhering by a special means that does not resist the driving of the belt.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a belt installed between a drive pulley at a front end and a driven pulley at a rear end so as to face the surface thereof to receive dust. A number of fins are arranged in a row, and the fins are attached to each other so that the belt can be covered with the fins over the entire length. Configured dust removal device.

In addition, if a friction gear is provided under the drive pulley so as to rub against the fin while rotating in the same direction as that of the drive pulley, the dust is completely removed.

[0009]

When the belt is driven, the fins are laid down one after the other at the rear end inversion, so that the fins cover the surface of the belt in such a manner that the fins overlap one another. During the meantime, the dust does not come into contact with the belt because it is carried on the fin and conveyed and discharged at the front end.

When the belt is reversed at the front end, the fins are not only secondarily reversed around the mounting portion at the same time, but also the reversal is accelerated by the centrifugal force caused by the rotation of the drive pulley, and the dust is released by the momentum. As it is separated as described above, the dust hardly remains on the fin, and even if the dust remains, it is removed by rubbing with the next friction gear.

Since the friction gear rotates in the direction opposite to the movement of the fin, the dust can be removed efficiently. However, since it is merely rubbing, it does not act as a resistance for driving the belt.

[0012]

Embodiments of the present invention will now be described with reference to the drawings.

The dust eliminator on the belt conveyor has a large number of fins 2, 2, ...
Are provided at equal intervals, and a friction gear 3 for removing dust is provided below the tip of the inversion.

The belt conveyor C is provided with a driving pulley 5, a driven pulley 7, a driving motor 6 and the like on a frame 4, and a low roller 9 so that the belt 1 is lowered in the width center between both pulleys 5, 7. And the left and right tilt rollers 11 and 11 (see the chain line in FIG. 4). The belt 1 is received by the press roller 13 on the return side.

The belt 1 is made of flexible canvas protected by a rubber layer. However, the dust D is hardly directly contacted with the belt 1, and the dust D is carried on the layer 2A on which the fins 2, 2, ... Then, on the surface of the belt 1, the mounting base member 15 of the fin 2 is attached.
Is fixed.

The mounting base member 15 has a lengthy shape in the width direction of the belt 1, and its cross section is formed into a substantially isosceles triangle.
The mounting groove 17 of the fin 2 is provided with an opening at the apex. The mounting groove 17 is formed as a dovetail groove in which a circular cavity is opened, and both side surfaces 19 and 19 of the opening are formed in a curved shape.

The fin 2 is formed of a flexible and highly elastic material such as rubber or synthetic rubber in the form of a sheet, and has a circular bulge that fits in the mounting groove 17 of the mounting base member 15 at the base end. The output shaft 21 is formed. Therefore, the bulge shaft 2
There is no reversal at 1, and as shown in FIG. 3, the reversing operation is performed mainly by bending at the base end portion as a whole. Further, the fin 2 can be replaced by taking the bulging shaft 21 in and out of the mounting groove 17 from the end. Fin 2
About the size of, it is about the same width as belt 1,
When lying down on the belt 1, the distal end portion is formed to have a length overlapping the proximal end portion of the following fin 2.

When the belt 1 is turned up (in the P direction) at the rear end as the starting point of the belt conveyor C, the fins 2 which are dependent on the belt 1 are gradually laid down and laid down due to their weight and flexibility. Dust D is dropped on the top.

Since each fin 2 overlaps the succeeding fin 2, the dust D is conveyed without touching the belt 1, and when the belt 1 is turned downward (in the Q direction) at the front end, the force is generated. The fins 2 are secondarily inverted by centrifugal force so that the fins 2 are thrown, the dust D is thrown out by the momentum, and the dust D slightly left is scraped off by the next friction gear 3.

The friction gear 3 is formed by forming a plurality of ring-shaped frames 25 around the shaft 23 and alternately combining friction pipes 27 and friction bars 29 with each other. The residual dust D is rotated and rubbed by the rotation and the movement of the fin 2, and the residual dust D is wiped off.
At this time, since the fins 2 rub against the friction gear 3 in a supple manner, they do not act as a resistance for driving the belt 1.

Regarding rotation of the friction gear 3, a belt 30 is interposed between the friction gear 3 and the drive pulley 5. When the rotational speed of the friction gear 3 is synchronized with the speed of the belt 1 as described above, the dust removal effect is large. Incidentally, when the speed of the belt 1 was 40 m / min, it was effective that the rotation speed of the friction gear 3 was 35 to 40 rpm.

[0022]

As described above, according to the present invention, there are the following excellent effects.

Since the dust is placed on the fins and conveyed while the fins are continuously lying down, dust does not adhere to the belt covered with the fins, and the belt is not damaged due to the adhesion of the dust. It can be prevented, and dust can be reliably removed.

Regarding the dust removal, in addition to the temporary reversal of the belt at the front end of the belt conveyor, the fins are secondarily reversed and the dust is removed by the centrifugal force. Residue can be effectively prevented. As a result, not only the belt but also the rollers on the return side can be extended in life. Moreover, the labor and cost for cleaning the dust on the return side to prevent the dust from falling are reduced.

Since it is not necessary to scrape off the dust by pressure and no resistance is given to the driving of the belt as a sweeping operation, the belt conveyor can be operated smoothly and is suitable for energy saving. Also, the belt wear is eliminated.

When a friction gear is provided (claim 2),
Removal of dust remaining on the fins is ensured, and this also does not impede the drive of the belt conveyor.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a main part of the present invention as seen from a side surface of a front end portion of a belt conveyor.

FIG. 2 is an overall schematic view of a belt conveyor.

FIG. 3 is a cross-sectional explanatory view showing, in an enlarged manner, a fin mounting state and a lying state of the belt.

FIG. 4 is an explanatory view seen from the front showing the front end portion of the belt conveyor in a state where fins are removed.

[Explanation of symbols]

 C Belt Conveyor D Dust 1 Belt 2 Fin 3 Friction Gear 5 Drive Pulley 7 Driven Pulley

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B65G 39/073 45/10

Claims (2)

[Claims] 1. A belt, which is installed between a front-end drive pulley and a rear-end driven pulley, has a large number of fins which are laid down on its surface to receive dust and which are attached so as to be reversible in the front-rear direction. A dust-dispelling device for a belt conveyor, wherein each fin is formed to have a length overlapping with a base end of a succeeding fin so that the entire length of the fin can be covered with the fin. 2. The dust removing device for a belt conveyor according to claim 1, wherein a friction gear is provided below the drive pulley so as to rub against the fin while rotating in the same direction as the drive pulley.