JPH0825615B2 - Conveyor belt equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor belt device, and more particularly to a conveyor belt device suitable for conveying a substance having a high wettability, for example, it is possible to suppress the adhesion of powdery and granular wet matter to the belt surface as much as possible and to efficiently It relates to a conveyor belt device intended for the transport of wettable goods.

[0002]

2. Description of the Related Art Conventionally, in order to prevent spillage and spillage of a package during transportation, when a package is received, a flat conveyor belt becomes a circular pipe shape. By returning to the flat belt again, the transported goods are directly sealed by the belt, and a cylindrical portion is forcibly formed by a part of the flat belt so that the transported goods are not scattered and spilled, and the conveyor belt is formed. There are many conveyor belts that have been appropriately modified according to the goods to be transported. For example, recently, JP-A-3-3808 is one of the suitable examples.

The conveyor belt device according to the present invention employs a step of forcibly deforming a part of the conveyor belt into a cylindrical shape during operation, but the conveyor belt device itself has a high moisture-containing wettability, for example. When transporting powdery or granular materials, a large amount of water during mining, rain, or mining during snowfall, or even when a large amount of water is accumulated in the transported product due to water content due to water sprinkling, a large amount of water is naturally present on the belt surface. Moisture adheres and remains, and as a result, a large amount of conveyed substances partially adheres and remains on the belt conveying surface, which requires strong scraping work with a cleaner or scraper.

[0004]

In the course of transportation, a large amount of transported material naturally adheres to and solidifies on the return roller and the cleaner portion, which causes belt meandering, belt ear wear, edge cracking, and vertical lengthening. Tear may occur, which may cause major troubles during operation. Furthermore, while the belt is running, there is falling powder on the floor surface of the return side of the belt, so cleaning,
The safety and dust scattering after drying with time deteriorated the environment of the work site and left a big problem in terms of maintenance including the work environment.

As a typical example of the conventional knowledge, if a cleaner is pressed against the belt conveying surface side under a strong pressure and the adhered powdery particles are scraped off, the adhered materials can be removed by 60 to 70%. However, considering the wear of the belt and increasing the thickness of the cover on the surface side in order to cope with this, not only the cost of the belt itself is increased, but also the weight of the belt is increased and the required power and power consumption are also increased. The result is a significant increase.

According to the present invention, a hot air flow passage for drying is formed by a part of the conveyor belt itself, and in the process of the hot air flow, adhered materials are separated from the belt and forcedly dried on the surface of the belt, so that the product conveyed by moisture is transported. It is an object of the present invention to provide a conveyor belt device aiming at reduction of sticking and adhesion, facilitating maintenance of a belt and improving an operation rate of the belt.

[0007]

In order to achieve the above object, the conveyor belt device according to the present invention has the following construction. A wide and flexible endless conveyor belt wrapped around a pair of pulleys consisting of a head pulley and a tail pulley, the carrier side with the transport surface of the object facing the surface is trough-shaped, while the return side is forcibly wound. By using the trapping means, the transporting material transport surface of the belt is arranged inside and each is formed into a cylindrical shape, and hot air for drying is blown out toward the end of the cylindrical portion formed on the belt return side. The apparatus is characterized in that the apparatus is installed in the cylindrical body with its ejection port facing the belt running direction. Further, a drying heater device is installed in the article carry-in zone portion above the trough-shaped carrier surface side of the belt.

[0008]

[Operation] Although most of the wettable goods fall from the conveyor belt, the wetness of some of them drops positively, and the belt rotates while being attached to the return side of the belt. continue. The folding, cylindrical tunnel
5 in the belt return side belt already formed in shape
Hot air for drying at 0 to 100 ° C. is jetted. Some transport material in the attachment state in the course of physical deformation to the rounding of the cylindrical more deep belt itself, the wind pressure is heated jetted applied, adhered transport was with dry, physical The belt is forcibly transported due to the belt deformation
The deposits that have peeled off from the surface and have progressed further in the drying operation are scraped off the belt surface by a scraper, and the cleaning of the belt surface by the cleaner is further promoted.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of the conveyor belt device according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of a conveyor belt device embodying the present invention.
(1) is a wide and flexible conveyor belt,
A tensile body made of multi-layered canvas or steel cord is embedded inside the belt. The conveyor belt (1) is wound endlessly between a pair of pulleys, that is, a head driving pulley (3) and a tail driven pulley (4), and a carrier side (a side of the belt which is a conveyance side of a transported object (a)). 5) The lower surface of the traflora (6) over the entire length
A hopper (7) for loading a transported object is installed on a portion of the belt (1) closer to the tail driven pulley (4) on the carrier side (5) side supported by the group and formed in a trough shape. .

On the other hand, the return side (9) of the belt (1)
Is a member that forcibly forms the return side of the belt into a cylindrical shape by winding the conveying surface of the belt inward over substantially the entire length thereof, specifically, the shape-retaining pipe (10 shown in FIGS. 1 and 3. ), Or a support roller (11) as shown in FIG.
By assembling the group into a substantially cylindrical shape in the circumferential direction and introducing the return side portion of the belt into the shape-keeping pipe (10) and the supporting roller (11) group, the conveyor belt (1)
Return side (9) forcibly deform the cylindrical (12) in to form a single tunnel. As described above, when the cylindrical portion (12) is formed in a part of the belt and the shape-retaining pipe (10) and the lower surface of the belt repeatedly make strong contact, it is desirable that the lower surface constituent member of the belt has a small friction coefficient. It is desirable to be configured as follows. Alternatively, the shape-retaining pipe (10) and the supporting roller (11) themselves may be formed of a member having a small friction coefficient.

[0011] folding the cylindrical winding operations return side portion of the belt, by the side edge portions of the endless swash incisal edges which are beveled in different directions (2) (2) is formed, a cylindrical Jomakikomi folding of body, both oblique truncated edges superimposed (2) (2) is a high sealability maintaining the contact state is maintained, a part of the transport material adhering remaining on the belt conveying surface (a) ' It suppresses the drop-off at unexpected places (see FIGS. 3 and 4). Of course, folding polymerization or abutment of the both side edges at the return side of the belt, the shape retaining pipe (10) or supporting rollers (11) group, tight closing of the cylindrical shape at both side edges to be joined are sufficiently retained In the folding, there is no direct limitation on the shape of the beveled edge (2) (2).

A hot air blowing device (14) for drying composed of a combination of a heater and a fan at 50 to 100 ° C. is provided near one end of the cylindrical portion (12) formed on the belt return side.
However, the jet outlet is inserted into the cylindrical portion (12) and is installed so as to match the traveling direction on the return side of the belt.

A cleaner (15) also serves as a cleaner for the pulley (3) and the belt (1) just below the head drive pulley (3) for discharging the transported material, and a belt cylindrical portion on the return side of the belt. A V-shaped scraper (16) is installed immediately after the opening of (12), and a cleaner (17) which also functions as a pulley and a belt is installed on the surface of the tail driven pulley (4). Further, a heater (18) is installed at a rear portion of the carrier-side (5) of the belt (1), which is a hopper (7) for inputting a transported object (a side of a traveling transported object in a direction opposite to the traveling direction), to constantly heat the belt surface. , Aids in the transpiration of moisture-containing transport products.

[0014]

[Effects of the Invention] Even after transporting a highly wetted package to a predetermined place, a part of the packaged product unexpectedly adheres to the return side of the conveyor belt. The higher the wettability, the more remarkable. The return side of the present invention is the conveyor belt, in the comparison between the carrier side during transport conveying belt, rapidly deform than substantially flat shape to a cylindrical shape, those of the forced belt
At the same time deposits caused peeling at physical deformation, by allowed to collide jet stream of air hot for the deposit of this unstable state, falling becomes promoted significant further deposits . The belt deformed into a cylindrical shape is attached
At the end of the return side where the kimono is discharged,
In the process of physical deformation to return to the shape
Delamination from the surface is promoted. Thus the cylindrical shape of the belt
To the inside of the cylinder and the jet flow of hot air into the cylinder
Exhibits a riding effect and prevents adhered matter from peeling off from the belt surface.
Be encouraged.

Further, the evaporation effect of the water of the hot air and the heat retention effect of the belt itself act synergistically, and the effect of suppressing the adhesion of the wettable powdery substance can be made more remarkable. In addition, effective removal of deposits can suppress belt meandering and uneven wear of the belt, which contributes to improved safety at the work site. The face also showed a remarkable decrease. Along with this, it was also confirmed that the operating rate of the conveyor belt itself improved. Specifically, the surface of the conveyor belt is about 50 ~
By raising the temperature to 60 ° C., compared with a conventional conveyor belt that does not carry out the present invention, the amount of clay adhering to the belt return side during the conveying of clay is reduced to 1/4 to 1/5, and a remarkable effect is confirmed. Was done. Also, the belt surface
The adhered matter that has peeled off is scattered to the outside from the cylindrical belt,
It is prevented from falling and deteriorates the environment around the work site.
It is possible to prevent tightening.

[Brief description of drawings]

FIG. 1 is a front view of a conveyor belt device embodying the present invention.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is an enlarged sectional view taken along line BB of FIG.

FIG. 4 is a view corresponding to FIG. 3 showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyor belt 2 2 Beveled edge 3 Head drive pulley 4 Tail driven pulley 5 Carrier side 9 Return side 10 Shape retention pipe 11 Support roller 12 Cylindrical part 14 Dry air blowing device 18 Heater

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Asazuma 2-chome, Suganodai 18-301, Suma-ku, Kobe-shi, Hyogo 18-301 (56) References JP-A-62-74812 (JP, A) JP-B-42-18773 (JP, B1) Actual public Sho 53-9100 (JP, Y2)

Claims (4)

[Claims] 1. A carrier side and a return side, which are formed by endlessly winding a conveyor belt between a pair of pulleys and are a transport side of a transported object, and a return side of the belt is forcibly forced to the belt side. It is formed in a cylindrical tunnel shape with the conveying surface inside, and a drying hot air jetting device having its jet outlet inserted in the running direction of the return side of the belt is arranged near the end of the cylindrical tunnel. Characteristic conveyor belt device. 2. The conveyor belt device according to claim 1, wherein a heater for drying is installed at a position of the conveyor belt near the carrier input portion on the carrier side. 3. The conveyor belt device according to claim 1, wherein both side edges of the endless conveyor belt are formed with side edges that are obliquely cut in different directions. 4. The conveyor belt device according to claim 1, wherein the drying hot air blowing device has a temperature of 50 to 100 ° C.