An apparatus includes: a disposal unit; a control unit configured to stop operation of the disposal unit; and a metal detector coil and associated circuitry, the metal detector coil located such that waste passing into the disposal unit for shredding passes through the metal detector coil. The control unit is triggered to stop operation of the disposal unit upon the detection of metal passing through the metal detector coil.

Grinding mechanisms for food waste disposers, and food waste disposers having grinding mechanisms are disclosed herein. The grinding mechanisms include a stationary grinding ring that includes a plurality of grater teeth, and a rotating shredder plate that includes at least one lug. The at least one lug may have at least a portion that is movable with respect to the top surface of the rotating shredder plate, or may be fin shaped.

Food waste disposer systems and related systems for coupling food waste disposer systems to electrical power sources, and related coupling and configuration methods, are disclosed herein. In at least one example embodiment, a food waste disposer system includes a motor, a switch module, a housing, and an appliance inlet power cord connection structure supported at least indirectly upon the housing, where the connection structure is either connected to or integrally formed with the switch module. Further, the food waste disposer system also includes a power cord including a first end with a first plug and a second end with a second plug, where the first plug is configured to be coupled to the connection structure. Additionally, the food waste disposer includes an adapter or first lead wires that are coupled at least indirectly to the connection structure.

A food waste disposer includes a housing, a grinding device detachably mounted inside the housing to grind food waste, and a storage device disposed below the grinding device to store the ground food waste, the grinding device includes a grinding case in which the food waste is ground, and having a discharge portion and openable to transfer the food waste to the storage device, a valve assembly configured to open or close the discharge portion and to be separable to the outside of the housing together with the grinding case, a first grinder rotatably mounted inside the grinding case, and having a grinding blade, a second grinder including a grinding blade to mutually grind the food waste with the grinding blade of the first grinder and a transfer blade below the first grinder and the second grinder to transfer the ground food waste to the discharge portion.

The present invention relates to the field of garbage landfill. The present invention discloses a classified landfill device and method for garbage landfills, and the problem solved by the present invention is that the device proposed in the above background absorbs metals in the garbage using a magnet, but when the surface of the magnet has absorbed a large amount of metal, the device needs to be closed to treat the metal adsorbed on the surface of the magnet. The present invention comprises a screening mechanism, crushing mechanism and discharge mechanism. According to the classified landfill device and method for garbage landfill, the second crushing knife is set at an angle to divert the falling garbage to the front and rear sides, so that the two first crushing knives and the second crushing knife cooperate to crush the garbage respectively to avoid excessive accumulation of garbage.

A kitchen faucet with a garbage disposer includes a faucet unit, the garbage disposer, and a sensing unit. The faucet unit includes a water outlet passage unit, and the water outlet passage unit is disposed with a first control valve configured to control an opening and a closing of the water outlet passage unit. The garbage disposer is located under a water outlet of the water outlet passage unit of the faucet unit. The sensing unit is disposed on the faucet unit and is configured to generate a normal water outlet instruction and a garbage disposal instruction respectively according to a long sensing distance and a short sensing distance. The first control valve is configured to be opened and closed through the normal water outlet instruction, and the first control valve and the garbage disposer are respectively configured to be opened and closed through the garbage disposal instruction.

A well tool assembly, system, and method for handling well debris is described. The assembly includes an electric submersible pump (ESP) configured to be positioned within a wellbore and a well debris cutting tool configured to be positioned downhole relative to the ESP within the wellbore. The ESP is configured to rotate in a first direction to pump well fluid in an uphole direction. The well debris cutting tool is configured to rotate in a second direction opposite the first direction and to grind debris carried by the well fluid in the uphole direction.

A disposal system includes a sink; a disposal unit located under the sink and connected in fluid communication with a drain of the sink; a control unit configured to operate the disposal unit; and means for detecting an unintended object that passes through the drain of the sink and enters the disposal unit, resulting in stopping operation of the disposal unit. The means for detecting an unintended object that enters the disposal unit resulting in stopping operation of the disposal unit comprises a sensor and associated circuitry that detects an unintended object and triggers the control unit to stop operation. In different preferred embodiments the sensor respectively includes a capacitive sensor; a capacitive plate; magnetic shielding surrounding the disposal unit in the area of the sensor; a double D coil arrangement; a concentric detection coil for detecting magnetic ringdown; an ultrasonic sensor; a microphone; and combinations thereof.

In an apparatus and process described, an organic fraction of solid waste is separated from light contaminants such as plastics and heavy contaminants such as grit. The organic fraction is subsequently processed by anaerobic digestion, which converts volatile solids to gas. In a first stage of the process, the waste is processed through a separator such as a vertical mill, which removes light fraction contamination, reduces organics particle size and dilutes the waste to thereby produce a slurry. In a second stage of the process, the slurry passes through a grit removal system, which removes heavy and settleable material, for example by way of a hydrocyclone. The light and heavy fraction contaminants are not carried through to the digestion process. The particle size of the organics is also reduced to facilitate digestion and the slurry has a dry solids concentration suitable for anaerobic digestion.

A method for comminuting kitchen waste and/or food residues includes receiving kitchen waste and/or food residues in a funnel, a base of which is provided with a grinding unit for comminuting the kitchen waste and/or food residues and which is connected by the grinding unit via a product line to a pump for pumping away comminuted kitchen waste and/or food residues, and pumping away the kitchen waste and/or food residues comminuted by the grinding unit. Prior to the pumping-away step, precomminution of the kitchen waste and/or food residues located in the funnel is carried out in the funnel by means of a precomminution unit projecting into the funnel. A correspondingly designed device for implementing the method is also described.