JPS625847B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a conveyor belt for conveying high-temperature substances and the like.

(Problems to be solved by the prior art and the invention) Conveyor belts are manufactured by covering the core with a cover rubber made of heat-resistant and wear-resistant synthetic rubber, and heat-curing this. There is a so-called heat-resistant rubber belt. By the way, in this type of conveyor belt, when conveying high-temperature substances such as coke, cement clinker, and sintered ore, the belt is cooled by water spraying, etc., to prevent the belt from being damaged by the high heat of the high-temperature substances. However, the above-mentioned measures are not sufficient, and conventional methods have been used in cases where the temperature of the high-heat substance is 300 to 500 degrees Celsius, or when the high-heat substance is a red-hot lump and these are temporarily Under harsh conditions, such as when the cover rubber is continuously placed on a belt, the high heat of the high-temperature substance may cause damage such as burnt dents on the conveying side of the cover rubber, and the material may become uneven. There was a problem in that the cover rubber was also severely worn due to contact with the surface of the lump, which shortened the life of the belt.

An object of the present invention is to provide a conveyor belt that can solve the above problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized in that a plurality of block bodies are laid at least on the widthwise central part side on the belt conveying surface side, and the block bodies are The base is made of rubber and is vulcanized and bonded to the belt conveying surface side, and the base is regularly arranged in parallel on the base surface in a grid pattern in the belt length direction and width direction, and is vulcanized and bonded to the base. The belt has a large number of ceramic small pieces having a rectangular shape in plan view, and gaps are formed between the small pieces adjacent to each other in the length direction of the belt and between small pieces adjacent to the belt width direction, and each gap is filled with rubber. The point is that

(Embodiment) An embodiment of the present invention will be described below based on the drawings. FIG. 1 shows a belt conveyor device, in which a conveyor belt 1 is connected to a driving pulley 2 and a driven pulley 3.
A large number of small guide pulleys 4 are provided which are wound between the belt 1 and guide the back side of the belt 1 on the conveyance side, and guide the conveyance side of the belt 1 on the return side. Further, at the midway point in the length direction on the return side of the belt 1, there are a pair of upper guide large pulleys 5 in the front and rear that guide the conveying surface side of the belt 1, and both of these pulleys 5.
A large lower guide pulley 6 is provided below the belt 1 to guide the back side of the belt 1.

As shown in FIG. 2, a plurality of small guide pulleys 4 on the conveyance side are arranged in a trough shape in the width direction, so that the conveyance side of the belt 1 has a trough shape, and the belt 1 has one pair in the width direction. A bent portion 7 is formed. As shown in FIGS. 3 and 4, the belt 1 is composed of a belt body 8, a block body 9, and an intervening body 10.

The belt main body 8 has a core body 11 and a cushion rubber 12 arranged alternately on top of each other, and the entire surface of these is made of heat-resistant,
It is covered with a wear-resistant cover rubber 13. As the core body 11, canvas, cord coated with rubber, steel cord, etc. are used.

The block body 9 covers the entire surface of the cover rubber 13 on the conveying surface side or at least on the widthwise central part side (8 of the total width).
(approximately 10%) is covered through the intervening body 10,
Several to a large number of block bodies 9 are arranged in parallel in the length direction on the conveying side of the cover rubber 13, and
In the width direction, a single shape or a plurality of shapes are arranged side by side. The block body 9 consists of a base 14 and a number of small pieces 15. The base 14 is made of unvulcanized rubber and has a thickness of about 3 to 5 mm. small piece 15
has a rectangular shape of about 1 cm x 1 cm in plan view, and a thickness of about 3 mm, making the whole rectangular parallelepiped shape. A large number of small pieces 15 are regularly arranged side by side in the belt length direction and width direction on the surface of the base 14 in a grid pattern, and the small pieces 15 are vulcanized and bonded to the base 14 so that is covered with a small piece 15. The small piece 15 is made of various ceramics and has heat resistance and wear resistance. In the illustrated example, at the outer end of the belt 1, the outer end of the base 14 is substantially flush with the small piece 15.

Vulcanization adhesion of the small piece 15 to the base 14 is performed as follows. That is, as shown in FIG. 5, after applying adhesive 16 to both or one of the surface of the base 14 and the back surface of the small piece 15, the small pieces 15 are arranged in parallel on the surface of the base 14, and the surface of the base 14 is covered with the small pieces 15.
These are made into a covering shape and bonded by heat vulcanization.

In the above case, an adhesion aid may be used in combination with the adhesive 16 in order to enhance the adhesion effect. Below, use an adhesion aid as necessary.

The intervening body 10 is made of unvulcanized rubber,
It has a thin plate shape with a thickness of about 2 to 3 mm, and the entire surface of the cover rubber 13 on the conveying surface side, or at least the central part in the width direction where the block body 9 is disposed, is covered with a single or plural intervening bodies 10. It is said that and,
By vulcanizing and adhering the block body 9 to the cover rubber 13 via the intervening body 10, a large number of small pieces 15 are formed.
As a result, the entire conveying surface side of the cover rubber 13 or at least the central portion thereof in the width direction is covered.

The above-mentioned vulcanization bonding of the block body 9 is carried out as follows. That is, as shown in FIG. 6, an adhesive 16 is applied to both or one of the conveying surface side of the cover rubber 13 and the back surface of the intervening body 10, and both or one of the front surface of the intervening body 10 and the back surface of the block body 9. The back side of the base 14 of the block body 9 is placed on the conveying surface side of the cover rubber 13 via the intervening body 10, and these are bonded by heat vulcanization. Note that the block body 9 may be vulcanized and bonded to the cover rubber 13 via the intervening body 10 without using an adhesive.

By the way, in the illustrated example, a gap 17 is formed between the small pieces 15 adjacent in the width direction at the bending part 7 of the belt 1, and at the bending part 7, elastic deformation of the belt main body 8, the intervening body 10, and the base 14 occurs. As the surface side of the small piece 15 in the gap 17 is properly closed, the belt 1 is suitably bent, and the small piece 15 does not interfere with forming the belt 1 into a trough shape.

Also, in other parts of the belt 1, gaps are provided between the small pieces 15 adjacent in the belt length direction and between the small pieces 15 adjacent in the belt width direction, so that the belt 1 is When the belt 1 is bent in the width direction and the width direction, the small pieces 15 do not pose an obstacle, and the belt 1 can be bent easily and smoothly in each of the above-mentioned directions.

Further, in the gap 17 of the bent portion 7 and each gap between other adjacent small pieces 15, when the small pieces 15 are vulcanized and bonded to the base 14, the rubber of the base 14 and the adhesion auxiliary agent 16 are raised. Gap 17
I'm trying to fill it in.

By the way, as shown in FIG. 3, the parts of the belt 1 that are wrapped around the driving pulley 2, driven pulley 3, and large lower guide pulley 6 undergo elastic deformation of the belt main body 8, the intervening body 10, and the base 14. The surface sides of the small pieces 15 that are adjacent to each other in the belt length direction, that is, the conveyance surface sides are in an open state. Furthermore, as shown in FIG. 4, in the portion of the belt 1 wrapped around the upper guide large pulley 5, due to the elastic deformation of the belt body 8, intervening body 10, and base 14, small pieces 15 adjacent to each other in the length direction of the belt are The back side of the is open. In this way, the small piece 15 does not interfere with the bending of the belt 1 at the portion where the belt 1 is wound around the pulley.

According to the embodiment configured as described above, the entire surface of the conveying surface side of the cover rubber 13 of the belt 1, or at least the widthwise central portion thereof on which the transported objects are mainly placed, is covered with a large number of small pieces 15 made of ceramics. Therefore, when conveying high-temperature materials such as cement clinker and sintered ore using belt 1,
Even under severe conditions, such as when the temperature of the high-temperature substance is between 300 and 500 degrees, or when the high-temperature substance is a red-hot mass that is temporarily or continuously placed on the belt 1, the high-temperature substance belt 1 due to high heat.
The belt 1 will not suffer any damage such as dents, nor will severe abrasion occur due to contact with the uneven surface of the high-temperature material.
can have a longer lifespan than conventional ones. The belt 1 can transport high-temperature substances having a temperature of about 500 to 600 degrees.

In addition, if the surface finish of the small piece 15 made of ceramics is improved, it becomes difficult for dust etc. from the conveyed material to adhere to the small piece 15, so there is no need to equip the belt conveyor device with, for example, a chip-type belt cleaner, and it is also possible to prevent the belt from being damaged by metal objects. Since there is no cutting damage and the hardness of the small pieces 15 is high, there is no risk of damage to the belt 1 due to contact between the skirt rubber provided in the belt conveyor device and the conveying surface side of the belt 1.

Further, after configuring the block body 9 by vulcanizing and adhering a large number of small pieces 15 to the surface of the base 14 made of unvulcanized rubber, the block body 9 is bonded via an intervening body 10 made of unvulcanized rubber. By vulcanizing and adhering these to the conveying surface side of the cover rubber 13,
Since the large number of small pieces 15 cover the entire conveying surface side of the cover rubber 13 or at least the central part in the width direction, even when manufacturing various belts 1 with different widths and lengths, a single type of belt 1 can be manufactured. The belt 1 can be easily manufactured at low cost by simply manufacturing the block body 9 of 1, and the adhesive strength of the small piece 15 to the cover rubber 13 side can be increased. Furthermore, even when a commercially available belt is provided with the small pieces 15, the small pieces 15 can be easily removed.
can be provided.

(Effects of the Invention) As detailed above, according to the present invention, the ceramic pieces are arranged side by side at least on the widthwise center side of the belt conveying surface, so that the heat resistance and abrasion resistance of the belt can be greatly improved. When conveying high-temperature substances, it is possible to prevent damage such as burning dents to the belt due to the high heat of the high-temperature substances, and also to prevent severe wear due to contact with the uneven surface of the high-temperature substances. It can also be prevented. Furthermore, belt wear due to contact with skirts, etc. can be prevented.
The belt can have a long service life and can be used in the same way as before.

In addition, the small pieces are regularly arranged in parallel in the belt length direction and width direction, and are arranged in a checkerboard pattern,
Since gaps are formed between small pieces that are adjacent to each other in the length direction of the belt and between small pieces that are adjacent to each other in the width direction of the belt, the small pieces will not cause any hindrance when bending the belt in the length direction or width direction. Therefore, the belt can be easily and smoothly bent in each of the above directions.

Furthermore, since the gaps between adjacent small pieces are filled with rubber, fine powder from the conveyed material can enter the gaps between the small pieces, and when the belt is bent, etc., the fine powder that has entered can damage the sides of the small pieces. There is no fear that he will.

In addition, a plurality of blocks are placed on the belt conveying surface side and vulcanized and bonded, and since the block has a base and a large number of small pieces that are vulcanized and bonded to the base, it is necessary to prepare the blocks in advance. If you construct a block body and lay this block body on the belt conveying surface side, the work will be easier than laying small pieces one by one on the belt conveying surface side, and the width and length will be smaller. Even when manufacturing various belts of different sizes, it is possible to use a single block body, which improves workability, and also makes it easy to include small pieces in commercially available belts.

Furthermore, since there is a base made of rubber on the back side of the hard piece made of ceramics, the impact when a conveyed object falls onto the piece is absorbed by the base and is prevented from breaking or damaging the piece. There is little fear that it will.

The present invention has the above advantages and is of great practical benefit.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a simplified side view of a belt conveyor device, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and each of FIGS. 3 and 4. 5 is a longitudinal cross-sectional view showing a portion of the belt wound around different pulleys, and FIGS. 5 and 6 are explanatory diagrams for explaining the method of manufacturing the belt. DESCRIPTION OF SYMBOLS 1... Conveyor belt, 8... Belt main body, 9... Block body, 10... Intermediate body, 11... Core body, 12... Cushion rubber, 13... Cover rubber, 14... Base,
15...Small piece, 16...Adhesive.

Claims (1)

[Claims] 1. A plurality of blocks are laid at least on the widthwise center side of the belt conveying surface, and the blocks are
A base made of rubber and vulcanized and bonded to the belt conveying surface side, and a large number of bases that are regularly arranged in parallel on the base surface in a grid pattern in the belt length and width directions and vulcanized and bonded to the base. The belt has ceramic small pieces that are rectangular in plan view, and gaps are formed between the small pieces adjacent in the belt length direction and between the small pieces adjacent in the belt width direction, and each gap is filled with rubber. A conveyor belt featuring: