JPS6032023Y2 - Cleaning device for ore conveyor belt - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cleaning device for a conveyor belt for conveying ore for conveying lumps and powder particles such as iron ore, coal, ore slag, and in particular, the present invention relates to a cleaning device for a conveyor belt for conveying ore, and in particular, fine particles of the ore conveyed by an endless conveyor belt. In order to prevent particles from reaching the return path while remaining attached to the belt and falling and scattering around the conveyor belt installation position, the above-mentioned fine particles attached to the belt are reliably removed and cleaned on the conveyor side of the belt. A scraper for peeling and dropping coarse particles is provided in the ore inputting chute, and a water washing chute is provided behind the scraper, and a watering nozzle, a draining roller, and a pressing roller are provided on the chute.

An endless belt conveyor is used to transport the ores and the like.

As the conveyor belt, a rubberized flat belt with a core made of steel cord or nylon canvas is commonly used.

In addition, when conveying ore, etc., fine powder particles tend to adhere to the belt, and these can be detached due to vibrations during the return route and become fallen ore, or they can be scattered and cause a negative environment in the belt conveyor installation area. There is.

For this reason, a special hood is installed on the ore conveyor, or a cleaning device is used to remove these deposits.

These cleaning devices include a contact type that directly wipes the belt, a compressed air blowing type, and a water washing method that uses a water stream.However, in the contact type, the contact members are subject to severe wear and require a lot of adjustment and replacement. This method has the disadvantage that it requires a lot of expense and labor, and it is not always possible to remove deposits reliably.

In addition, the air blowing type requires large equipment and also causes noise pollution, making it unreasonable, so a flushing type is recommended.

However, with the conventional water washing method, the belt is not drained sufficiently after watering, and the fine ore particles remain attached to the belt along with ice, causing ore falls near the belt guide rollers. It costs money.

The present invention was developed with attention to these points, and was arrived at as a result of adopting a water-washing method in particular and conducting various studies regarding the arrangement and configuration of these devices.

That is, at a position facing the inside of the ore input chute provided on the delivery side, a scraper is brought into contact with the belt that has reached the return route side to peel off the ore adhering to the belt, and a water washing chute is provided following the chute, and the chute is A plurality of draining rollers are provided on the chute to be inclined low in the direction of belt movement, and a plurality of draining rollers are provided on the chute in contact with the belt surface, and a plurality of presser rollers are also provided to tension the belt from the back side of the belt, and the presser roller is The rollers are arranged to sandwich the draining rollers, and nozzles are provided before and after the first draining roller or on the belt introduction side so as to spray water toward the belt surface.

The present invention will be explained in detail below based on the drawings, but the drawings show one example of specific implementation, and the present invention is not limited to these illustrated examples. Even if the shape or design is changed, the same implementation is possible.

FIG. 1 is an interrupted side view of the cleaning device of the present invention, and FIG. 2 is a sketch with main parts cut away.

FIG. 3 is a sketch of the sprinkler pipe, and FIG. 4 is a partial sketch of the structure of the scraper.

In these figures, reference numeral 1 indicates a belt of an ore transport conveyor, and the above-mentioned flat belt is employed as the belt.

Reference numeral 2 is a tension roller installed on the ore delivery side and supported by a suitable support frame, etc. (not shown).

Further, the tension roller 2 may be used as a driving roller if necessary.

Reference numeral 4 exemplifies an ore inputting chute, and a conveying device or ore supply port 3 is provided at the bottom of the chute 4 .

On the other hand, the belt 1 runs as shown by the arrow and carries the ore 3'
is dropped into the chute 4, goes around the tension roller 2, reaches the return route, and then reaches the loading section again.

Further, although the belt 1 is illustrated as being formed flat in the width direction, it may be used as a groove with inclined rollers arranged on both sides on the conveying side.

In addition, on the return route side, the train runs flat.

Reference numeral 5 denotes a scraper, and the scraper 5 is a channel-shaped member, and is configured to extend on both sides of the belt 1 so as to come into contact with the belt 1.

Although the figure shows the scraper 5 disposed perpendicular to the running direction of the belt 1, it can also be disposed at an appropriate inclination.

The channel type scraper 5 has an inlet side wall 17.
, formed by the outlet side wall 17 and the groove portion 18 (Fig. 4),
When installing it opposite to the belt 1, it is recommended that a slight gap be formed between the top surface of the inlet side wall 17' and the belt 1, and the top surface of the other side wall 17 be placed in contact with the belt 1. be done.

With this arrangement, among the coarse particles of ore attached to the belt 1, those that cannot pass through the gap are scraped off from the front side of the scraper 5 and fall into the chute 4.
The deposits that entered through the gap are scraped off by the outlet side wall 17 and deposited in the groove 18 of the channel scraper 5.

The accumulated ore acts as a scraper to remove the fine ore adhering to the belt surface, and the accumulated fine ore falls into the chute 4 from one or both sides of the scraper 5.

By the way, such a scraper 5 is suitable for a belt with a flat surface, but it is not sufficient for a belt that forms grooves or uneven portions on the belt surface.

Therefore, the present invention not only provides these scrapers but also uses a water washing device to clean the belt and prevent ore from falling.

Reference numeral 6 denotes a water washing chute whose bottom wall is arranged so as to be lower in the direction of belt movement, and side walls are formed around it.

Further, a substantially horizontal bottom portion is formed at the lowest part of the bottom wall, and a discharge lower is formed by a projecting wall 8 on the bottom portion.

A plurality of draining rollers 9 are provided at the top of the washing chute 6.
, 9.9 are provided so as to be in contact with one surface of the belt, and the draining roller is recommended to be one whose surfaces are coated with an elastic material so as to be in contact with the belt surface and to be able to rotate freely.

Further, these draining rollers 9 are supported by the side wall of the washing chute 6 or another frame.

A pressing roller 10 that acts to tension the belt 1 from the back side of the belt 1 is disposed approximately at the center of the distance between the draining rollers 9 and 9.

As the presser roller 10, a self-weight roller that is supported so as to be able to rise and fall freely, or a roller that is pressed by a spring or the like is used. be supported.

Note that although the figure shows a configuration with three draining rollers 9 and two presser rollers 10, the number can be increased or decreased depending on the type of belt, surface shape, etc.

Water sprinkling pipes 11 are disposed in parallel to the drain roller 9 before and after the first drain roller 9 provided on the drain discharge side.

In addition, these water sprinkling pipes 11 can be provided only on the side of the belt introducing direction of the draining roller 9, or can be provided in front of the second draining roller 9, depending on the type of ore and the shape of the belt. Can be increased or decreased.

As the water sprinkling pipe 11, it is preferable to use a cylindrical pipe 16 with narrow diameter parts 13, 13 formed on both sides, a long groove hole 14 formed in the center, and round holes 15 formed on both sides (Fig. 3). The long groove holes 14 and the round holes 15 are arranged parallel to the axis of the cylindrical tube 16, and their arrangement width is approximately 1/2 the width of the belt 1, and they are oriented toward the center of the belt.

Pressure is introduced into the cylindrical pipe 16 from one or both sides, and the water fountain 12 is ejected from the elongated hole 14 and the round hole 15 at an angle in the belt running direction.

(Figure 1). Note that these water sprinkling pipes 11 are also attached to the side wall or frame of the washing chute 6.

The water fountain 12 of the water sprinkling pipe 11 configured in this way washes away the deposits that have adhered to the surface of the belt 1 and cannot be removed by the scraper 5, and drops them into the chute 6, while being pressed against the belt 1 by the draining roller 9 and trying to transfer. It also guides deposits and water into the chute, and since the pressure roller 10 brings the surface of the belt into contact with the draining roller 9, the draining roller 9 acts like a squeezing roller and improves the draining of the belt. Since the water fountain of the water sprinkling pipe 11 sprinkles water on the belt 1 except for both sides, the spray water does not enter the back side of the belt.

Note that the inclination of the fountain and the fountain hole are appropriately selected.

The fallen ore flowed down by these water sprinklings flows into the chute 6 together with water and is discharged from the discharge lower into a suitable pit.

In order to prevent abrasion caused by these falling ores, it is recommended that the chute 6 be formed in a self-lining system in which the opening of the discharge lower is formed by a projecting wall 8 and the falling ores are deposited around the chute.

Since the apparatus for cleaning the ore conveying hair belt of the present invention is configured as described above, (1) it is possible to eliminate ore fall during conveyor installation and improve the environment;

(2) Not only is there no need for processing of fallen ore, cleaning, etc., there is also almost no need to adjust the cleaning device or replace parts, and maintenance can be made at low cost.

You can enjoy benefits such as:

[Brief explanation of drawings]

FIG. 1 is an interrupted side view of the device of the present invention, FIG. 2 is a sketch, FIG. 3 is a sketch of the water pipe, and FIG. 4 is a partial sketch of the scraper. 1...◆...Conveyor belt, 2...Tension roller, 3'...Ore, 4...Input chute, 5...Scraper, 6... ...Washing chute, 7...Discharge port, butt...Protrusion wall, 9
... Draining roller, 10 ... Pressing roller, 11 ... Watering pipe, 12 ... Fountain, 13 ... Narrow diameter part, 14 ...long slot,
15... Round hole, 16... Cylindrical pipe, 17.
...Channel side wall, 18...Groove section.

Claims (1)

[Scope of utility model registration request] This is a cleaning device for an endless conveyor belt for conveying ore, in which an ore input chute is provided on the conveyance side, and the ore input chute is placed on the lower surface side of the return side belt at a position facing the inside of the ore input chute, and is lowered along the return side belt on the carry-in side than the input chute. In addition to providing an inclined water washing chute, the ore discharge wall at the discharge port of the washing chute is shaped higher than the bottom surface of the chute, and the open surface side of a channel-shaped scraper having a concave cross section is placed on the lower surface side of the return road side belt. In addition to facing the outer surface of the belt, the outlet side walls on the rear side of the channel-type scraper are brought into contact with the outer surface of the belt along the belt traveling direction, and the inner surface of the belt on the input chute side from the contact position of the scraper is placed in contact with the outer surface of the belt. A plurality of presser rollers are placed on the side of the belt, and a plurality of draining rollers are placed on the outer side of the belt, which are arranged alternately so as to press the inner and outer surfaces of the belt. A conveying belt cleaning device for ore, characterized in that water sprinkling pipes are disposed on the front and rear sides in the belt running direction and are provided with nozzles that spray water oriented toward the belt surface.