Systems, devices, apparatus and methods for cleaning contaminated tanks without introducing large amounts of free water or liquefier into the tanks. A gathering arm assembly and a bucket assembly is used to remove and break up waste debris from a contaminated tank.

A waste disposer comprising a primary dehydrating chamber, a grinding device, a secondary dehydrating chamber, and a storage chamber. The primary dehydrating chamber is adapted to allow waste to be heated therein to partly dehydrate the waste. The primary dehydrating chamber has: a first waste inlet for receiving the waste, a first vapor outlet for exhausting vapor from the waste, a drainage outlet for draining free liquid from the waste, and a first waste outlet for outputting the partly dehydrated waste. The grinding device is adapted to receive the waste from the first waste outlet and grind the waste to reduce the size thereof. The secondary dehydrating chamber is adapted to allow the ground waste to be heated therein to further dehydrate the waste. The secondary dehydrating chamber has a second waste inlet for receiving the ground waste, a second vapor outlet for exhausting vapor from the waste, and a second waste outlet for outputting the further dehydrated waste. The storage chamber is adapted to receive the waste from the second waste outlet and store the waste in the storage chamber.

A two-shaft shredder includes a shredder housing, a first cutter disc unit, and a second cutter disc unit. The first cutter disc unit has at a first axial end a first bearing unit (80) with a first bearing housing and at a second axial end a second bearing unit with a second bearing housing. A first cutter disc block is rotatably mounted about a first axis of rotation. The second cutter disc unit has at a first axial end a third bearing unit with a third bearing housing and at a second axial end a fourth bearing unit with a fourth bearing housing A second cutter disc block is rotatably mounted about a second axis of rotation. The shredder housing has a first maintenance hatch cover which, in a release position, permits removal of the first cutter disc unit together with the first and second bearing units.

Disclosed are a kitchen waste treatment system and a method thereof. The kitchen waste treatment system includes a control module, a drying module, an air extraction module, a grinding module and a temperature sensor all connected with the control module. The control module is for sending a first control signal, a second control signal and a third control signal according to a current working process in a determination that it is turned on normally. The drying module is for drying kitchen waste. The air extraction module is for extracting air from the kitchen waste. The grinding module is for grinding the kitchen waste. The temperature sensor is for detecting a temperature of the drying module. The control module is further for sending a stop command to the drying module in a determination that the temperature is higher than a preset temperature threshold.

Baffles for food waste disposers, systems employing such baffles, and methods of assembling, manufacturing, fabricating, or operating such baffles or baffle systems are disclosed herein. In one example embodiment, a baffle for implementation in connection with a food waste disposer includes a rim portion, a plurality of flaps, and a plurality of living hinges, wherein the rim portion, living hinges, and flaps constitute a single integrally-formed structure. The respective living hinges permit the respective flaps to be rotatable about respective axes that respectively are substantially tangent to respective locations along or proximate to the rim portion, so that the respective flaps can be rotated to respective closed positions. Either the living hinges or at least one additional component tend to cause the respective flaps to remain at the respective closed positions or to return to the respective closed positions when not at the respective closed positions.

A food recycler can include a housing defining an interior and an access opening to the interior. A mixing bin can be located within the interior and can have an inlet and an outlet. The food recycler can further include an output bin, the output bin having an inlet. The outlet of the mixing bin can couple or connect to the inlet of the output bin. The food recycler further has a transfer assembly for transferring food waste from the mixing bin to the output bin. The transfer assembly includes a chute mounted to the housing and operably coupling the first outlet of the mixing bin to the second inlet of the output bin, and at least one vibration damper positioned between the housing and the chute configured to allow flexibility of the chute to vibrate relative to the housing.

Baffles for food waste disposers, systems employing such baffles, and methods of assembling, manufacturing, fabricating, or operating such baffles or baffle systems are disclosed herein. In one example embodiment, a baffle for implementation in connection with a waste disposer includes a rim portion, a plurality of flaps, and a plurality of living hinges, where the rim portion, living hinges, and flaps constitute a single integrally-formed structure. The respective living hinges permit the respective flaps to be rotatable about respective axes that respectively are substantially tangent to respective locations along or proximate to the rim portion, so that the respective flaps can be rotated to respective closed positions. Either the living hinges or at least one additional component tend to cause the respective flaps to remain at the respective closed positions when already at those respective positions, or to return to those respective positions when not at those respective positions.

Food waste disposers include a housing, a grinding apparatus mounted inside the housing and configured to grind food waste, and a storage device arranged to store ground food waste. The grinding apparatus includes a grinding case including a discharge hole to allow ground food waste to be transferred to the storage device, a stationary grinder including a plurality of stationary blades coupled to a side wall of the grinding case, a rotary body rotatably coupled to a bottom surface of the grinding case, a first blade extending from the rotary body, the first blade having a first member on a front side and a second member on a rear side with a different shape from each other, and a second blade extending from the rotary body, the second blade having a shape different from a shape of the first blade.

A system for comminuting solid waste material including a shredding device disposed within the casing and comprising parallel first and second shredding stacks that include first and second parallel shafts rotatably mounted between an upper shredding device housing and a lower shredding device housing and a rotating screening drum disposed within the casing and mounted between an upper screening drum housing and a lower screening drum housing, the rotating screening drum configured to permit fluid to pass therethrough while capturing solids on an outer surface for delivery to shredding device, an upstream portion of the rotating screening drum disposed upstream of an upstream portion of the shredding device. The upper shredding device housing and the lower screening device housing are separate members from the upper screening drum housing and the lower screening drum housing to permit interchangeability of different sizes of these components to meet system needs.

Grinding sections for food waste disposers, food waste disposers having grinding sections, and methods of manufacturing food waste disposers having grinding sections are disclosed herein. The grinding sections include an internal wall having a plurality of projections extending into the food receiving area. Grinding inserts are attached to each projection. The grinding sections may be made by molding the grinding section housing with the projections and attaching the grinding inserts into the projections.