A conveyor belt, in particular a pouch conveyor belt, with a first layer, which comprises a material with high flexibility, and to a conveying installation, in particular a pouch conveying installation, with such a conveyor belt.

A film for conveying in an industrial process, industrial fabrics made from the film, and methods of manufacture. The film has a plurality of protrusions separated by land areas. Each protrusion comprises a top member having opposing lateral edges and is supported by opposed compression resistant first and second end walls, which with at least one of the lateral edges define an aperture extending through the film to provide a flow path. The base edge of each end wall has a configuration selected from at least one of the base edge being convexly curved away from the protrusion body; and each end wall extending below at least a part of each of the first and second lateral edges and being connected to each of the first and second lateral edges. The film structure provides physical properties equivalent to a woven fabric, with improved strength, stability and compression resistance.

A film for conveying in an industrial process, industrial fabrics made from the film, and methods of manufacture. The film has a plurality of protrusions separated by land areas. Each protrusion comprises a top member having opposing lateral edges and is supported by opposed compression resistant first and second end walls, which with at least one of the lateral edges define an aperture extending through the film to provide a flow path. The base edge of each end wall has a configuration selected from at least one of the base edge being convexly curved away from the protrusion body; and each end wall extending below at least a part of each of the first and second lateral edges and being connected to each of the first and second lateral edges. The film structure provides physical properties equivalent to a woven fabric, with improved strength, stability and compression resistance.

A conveyor belt includes a first outer sheet disposed on a loadbearing side of the conveyor belt, a second outer sheet disposed on a drive side of the conveyor belt, and an embedded tension-member system disposed between the two sides, which is in the form of cords running parallel in the longitudinal direction of the conveyor belt. The tension-member system includes steel and, prior to vulcanization of the conveyor belt, an expandable coating which, after vulcanization of the conveyor belt, has a pore structure provided to at least portions of the tension-member system. The sheets are formed from a polymeric material with resilient properties. In some aspects, the volume of the coating after vulcanization is from 30 to 5000% higher than prior to vulcanization. The coating may contain at least one of a blowing agent and/or microbeads.

A conveyor belt includes a first outer sheet disposed on a loadbearing side of the conveyor belt, a second outer sheet disposed on a drive side of the conveyor belt, and an embedded tension-member system disposed between the two sides, which is in the form of cords running parallel in the longitudinal direction of the conveyor belt. The tension-member system includes steel and, prior to vulcanization of the conveyor belt, an expandable coating which, after vulcanization of the conveyor belt, has a pore structure provided to at least portions of the tension-member system. The sheets are formed from a polymeric material with resilient properties. In some aspects, the volume of the coating after vulcanization is from 30 to 5000% higher than prior to vulcanization. The coating may contain at least one of a blowing agent and/or microbeads.

Rubber composition for conveyor belts containing (A) a rubber component that contains a styrene-butadiene rubber mixture having a mean styrene content of from 28 to 35% by mass, which contains one or more types of styrene-butadiene rubber having a styrene content of from 20 to 25% by mass and one or more types of styrene-butadiene rubber having a styrene content of from more than 25 to 50% by mass, and at least one selected from butadiene rubber and natural rubber in a specific ratio, (B) silica, (C) resin, and (D) specific carbon black in a specific ratio; a rubber for conveyor belt covers, formed by using the rubber composition; and a conveyor belt cover provided by using the rubber composition.

Rubber composition for conveyor belts containing (A) a rubber component that contains a styrene-butadiene rubber mixture having a mean styrene content of from 28 to 35% by mass, which contains one or more types of styrene-butadiene rubber having a styrene content of from 20 to 25% by mass and one or more types of styrene-butadiene rubber having a styrene content of from more than 25 to 50% by mass, and at least one selected from butadiene rubber and natural rubber in a specific ratio, (B) silica, (C) resin, and (D) specific carbon black in a specific ratio; a rubber for conveyor belt covers, formed by using the rubber composition; and a conveyor belt cover provided by using the rubber composition.

A conveyor belt is formed by covering a belt core body with a cover rubber. The cover rubber has a fine ridged/grooved structure formed on at least a portion of a surface thereof, and has a surface roughness of 1 μm or more and 12 μm or less, a degree of sharpness of 2 or more and 9 or less, and a specular gloss at an angle of incidence of 60° of 0.1 or more and 10 or less due to the fine ridged/grooved structure. The surface roughness is preferably 2 μm or more and 5 μm or less, and the degree of sharpness is preferably 3 or more and 5 or less, and the specular gloss at an angle of incidence of 60° is preferably 0.1 or more and 3 or less. Such conveyor belt is less likely to have a poor appearance due to bloom.

A conveyor belt is formed by covering a belt core body with a cover rubber. The cover rubber has a fine ridged/grooved structure formed on at least a portion of a surface thereof, and has a surface roughness of 1 μm or more and 12 μm or less, a degree of sharpness of 2 or more and 9 or less, and a specular gloss at an angle of incidence of 60° of 0.1 or more and 10 or less due to the fine ridged/grooved structure. The surface roughness is preferably 2 μm or more and 5 μm or less, and the degree of sharpness is preferably 3 or more and 5 or less, and the specular gloss at an angle of incidence of 60° is preferably 0.1 or more and 3 or less. Such conveyor belt is less likely to have a poor appearance due to bloom.

A method for producing and/or recycling a conveyor belt, the conveyor belt having at least one belt layer, the at least one belt layer or one of the belt layers including a tension member, the tension member including a matrix material and filaments embedded in the matrix material, includes: providing a tension member starting material by: providing a recyclate, which already contains filaments or filament groups, or combining a recyclate, which already contains filaments or filament groups, with the matrix material and/or filaments, or combining the matrix material with filaments; producing an extrudable state of the tension member starting material by mixing the provided tension member starting material in a mechanically-aided manner and influencing a temperature on the provided tension member starting material; and extruding the tension member, forming the at least one belt layer of the conveyor belt, from the tension member starting material.