Provided is a raw material supply device and a device for processing electronic and electrical device part scraps, which can control dropping positions of a raw material containing substances having different shapes and specific gravities, as well as a method for processing electronic and electrical device part scraps using those devices. A raw material supply device 4 includes an accommodating portion 41 for feeding a raw material 100 to a predetermined position, wherein the raw material supply device 4 includes: a receiving port 43 having a first opening 433 for receiving the raw material 100 on a top surface of the accommodation portion 41; a discharge port 42 having a second opening 422 for discharging the raw material 100 on a bottom surface of the accommodating portion 41, the second opening 422 having a cross-sectional area lower than that of the first opening 433; a first guide surface 412 in a front of a side surface of the accommodating portion 41, the first guide surface 412 extending in a vertical direction through the discharge port 42 from the receiving port 43 so as to be contacted with the raw material 100 dropped toward a front of a conveying unit 2 to guide the raw material 100 downward; and a second guide surface 411 on a surface opposing to the first guide surface 412, of the side surface of the accommodating portion 41, the second guide surface 411 being provided with an inclined surface 411a that is continuous with the discharge port 42 and is inclined with respect to a horizontal plane, and wherein the first guide surface 412 extends such that a lowermost end portion of the first guide surface 412 is located below an intersection P of an extended line extending in an inclination direction of the second guide surface 411 with the first guide surface 412.

Examples of automated gemstone feeding are described. According to an example, a gemstone feeding machine includes a conveyor belt assembly to feed holders carrying gemstones. The conveyor belt assembly can include a plurality of conveyor belts in two sets positioned parallel to each other and the two sets can move in opposite directions. Each belt in one set can be positioned alternately with respect to each belt in the other set. The assembly can include a fixed guiding plate at a first end of the conveyor belts and a detachable guiding plate adjacent to the loading assembly at a second end of the conveyor belts. The fixed guiding plate and the detachable guiding plate each comprises a plurality of transition profiles in alignment with immediately adjacent conveyor belts.

Examples of automated gemstone feeding are described. According to an example, a gemstone feeding machine includes a conveyor belt assembly to feed holders carrying gemstones. The conveyor belt assembly can include a plurality of conveyor belts in two sets positioned parallel to each other and the two sets can move in opposite directions. Each belt in one set can be positioned alternately with respect to each belt in the other set. The assembly can include a fixed guiding plate at a first end of the conveyor belts and a detachable guiding plate adjacent to the loading assembly at a second end of the conveyor belts. The fixed guiding plate and the detachable guiding plate each comprises a plurality of transition profiles in alignment with immediately adjacent conveyor belts.

In accordance with presently disclosed embodiments, systems and methods for efficiently managing bulk material are provided. The disclosure is directed to systems and methods for efficiently combining additives into bulk material being transferred about a job site. The systems may include a support structure used to receive one or more portable containers of bulk material, and a mulling device disposed beneath the support structure to provide bulk material treatment capabilities. Specifically, the mulling device may facilitate mixing of coatings or other additives with bulk material that is released from the portable containers, as well as transfer of the mixture to an outlet location.

In accordance with presently disclosed embodiments, systems and methods for efficiently managing bulk material are provided. The disclosure is directed to systems and methods for efficiently combining additives into bulk material being transferred about a job site. The systems may include a support structure used to receive one or more portable containers of bulk material, and a mulling device disposed beneath the support structure to provide bulk material treatment capabilities. Specifically, the mulling device may facilitate mixing of coatings or other additives with bulk material that is released from the portable containers, as well as transfer of the mixture to an outlet location.

An industrial metering apparatus includes a hopper, a metering mechanism, a discharge opening, a window, a hinge, and a locking mechanism. The hopper includes a housing to contain a bulk material. The metering mechanism is coupled to the hopper and meters a quantity of the bulk material leaving the hopper. The discharge opening is coupled to the metering mechanism and discharges the metered quantity of the bulk material. The window covers an opening through the side of the housing. The hinge couples the window to the housing such that the hinge allows the window to hingedly open to allow access to the opening through the side of the housing and hingedly close to substantially prevent the bulk material from escaping from the hopper. The locking mechanism locks the window in a closed position to substantially prevent the bulk material from escaping from the housing of the hopper.

An industrial metering apparatus includes a hopper, a metering mechanism, a discharge opening, a window, a hinge, and a locking mechanism. The hopper includes a housing to contain a bulk material. The metering mechanism is coupled to the hopper and meters a quantity of the bulk material leaving the hopper. The discharge opening is coupled to the metering mechanism and discharges the metered quantity of the bulk material. The window covers an opening through the side of the housing. The hinge couples the window to the housing such that the hinge allows the window to hingedly open to allow access to the opening through the side of the housing and hingedly close to substantially prevent the bulk material from escaping from the hopper. The locking mechanism locks the window in a closed position to substantially prevent the bulk material from escaping from the housing of the hopper.

A distribution system for storing and conveying a supply of material is described. The distribution system includes a bin for storing and conveying a supply of material. The bin includes a housing defining an internal chamber configured to receive the material, at least one outlet configured to direct the material from the bin, a plate defining a lower end of the internal chamber and supporting and directing the material to the at least one outlet, an agitation device attached to the plate, and a gasket disposed between the plate and the housing.

A distribution system for storing and conveying a supply of material is described. The distribution system includes a bin for storing and conveying a supply of material. The bin includes a housing defining an internal chamber configured to receive the material, at least one outlet configured to direct the material from the bin, a plate defining a lower end of the internal chamber and supporting and directing the material to the at least one outlet, an agitation device attached to the plate, and a gasket disposed between the plate and the housing.

An apparatus that conveys pellet-shaped articles may include a hopper that receives a quantity of the pellet-shaped articles. The hopper may include one or more openings to direct a flow of air into the hopper to dislodge jamming or bridging of pellet-shaped articles within the hopper.