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.

A multi-region twin-shaft cutting system for chopping material. The cutting system includes two shafts which are arranged in parallel and are driven in an opposed manner, each shaft is surrounded by a roll body. The system additionally includes a multiplicity of supporting elements, each supporting element is fitted radially around the roll body. The system further includes a multiplicity of severing elements which are of disc- and/or plate-like design and are each fitted symmetrically or asymmetrically tangentially to the circumferential region of the supporting elements.

A mill includes a generally vertical, rotatable shaft having at least one set of cutter blades driven thereby and a fan assembly mounted on the shaft below the cutter blades in position to receive output therefrom. The fan assembly includes a fan disc secured to the shaft and rotatable therewith. A plurality of fan blades is secured to the fan disc in a generally radial orientation. A terminal portion of the mill includes a gradually, radially expanding outer wall configured in a volute form. The expanded outer wall decreases wear and increases efficiency of discharge and airflow through the mill.

The comminution device (100) according to the invention comprises a feed opening (10) for feeding material to be comminuted, a comminution shaft (20) for comminuting the material fed to the device, and a cutting chamber (30), arranged between the feed opening (10) and the comminution shaft (20) and delimited by a cutting chamber wall (40a, 40b). The comminution device according to the invention is characterized in that the cutting chamber wall (40a) can be pivoted. The invention also relates to a corresponding method.

A food waste disposer includes: a housing; a grinding case positioned inside the housing and configured to be separable from inside of the housing to outside of the housing and treat food waste; a rotating grinder configured to treat the food waste by rotating inside the grinding case and rotatably coupled with respect to a bottom surface of the grinding case; a grinder rotating shaft inserted in the rotating grinder and configured to rotate together with the rotating grinder; and a driver positioned below the grinding case and configured to provide rotation power of the rotating grinder, wherein the driver includes: a driving motor configured to generate power; a shaft driving gear configured to rotate by receiving power of the driving motor; and a connecting shaft configured to be rotatable within a range of a first angle with respect to the shaft driving gear, wherein one end of the connecting shaft is inserted in the grinder rotating shaft and another end of the connecting shaft is inserted in the shaft driving gear to transfer power from the shaft driving gear to the grinder rotating shaft.

A food waste disposer includes a housing, a grinding case inside the housing to dispose of food waste, a valve assembly mounted to a lower portion of the grinding case, and a driving device arranged on one side of the valve assembly to operate the valve assembly. The grinding case includes a discharge hole formed on a bottom surface. The valve assembly includes a valve member configured to open or close the discharge hole. The driving device includes: a driving motor to generate power; a power transmission member connected to the driving motor and configured to be moved in a first direction and a second direction opposite to the first direction; a holding member that rotates based on the movement of the power transmission member and connects to the valve member to guide an open or closed state of the valve member; and a sensor in contact with the power transmission member.

A medical waste treatment system, comprising: (1) A main treatment unit comprising: a waste receiver cover comprising a UV lamp; a waste shredding unit comprising a shredding bin and at least two rotating shredding blades; a compression unit to push the medical waste towards the shredding blades; a separator to allow the passage of shredded medical waste of a predefined shape and diameter; and a disinfectant delivery unit comprising a plurality of nozzles. (2) A disinfection unit which comprises a disinfectant mixing bin and a mixing unit. (3) A main liquid management unit comprising a disinfectant delivery unit that comprises a plurality of nozzles interconnected to the main treatment unit. (4) A separator unit to separate the liquid from shredded waste; and a centrifuge to further remove liquid from the shredded waste.

A method for the reduction and/or removal of pathogenic agents and microorganisms contained in solids, comprising the steps of purification of the starting material to dispose of materials that combine a great size and extreme hardness and malleability; and the adjustment of the humidity degree of the material obtained in step of purification, and the grinding and heating of the material obtained in the step of adjusting the humidity, where the grinding and heating are carried out simultaneously by subjecting the material to a high pressure while at the same time its temperature is increased by means of an increase in the pressure on the material and the friction caused between the material and the grinding means. And A machine to carry out the method, comprising a front chamber for the entrance of the material; a contiguous rear chamber associated with the entrance chamber, by means of which the processed material is expelled; said contiguous rear chamber containing a grinding means that rotates when it is actuated by an engine; and a piston that enters into the front chamber running along said chamber into the rear chamber until it reaches a grinding means, where the grinding means consists of a solid, hard and heavy cylinder associated with a transverse axis, said cylinder being provided with a set of longitudinal slots from base to base that form edges with the cylinder surface.

[Object] To use fibrous dust or particulate dust which were simple wastes in the past as resources. To improve treatment capacity dramatically.

[Solving Means] Non-metal dust which is further pulverized into a small particle size in a pulverizing step S10 through a crushing step Si of crushing wastes such as waste automobiles, waste home appliances, and waste office furniture into a predetermined size, an iron component separation and collection step S3 of separating and collecting an iron component, a non-ferrous component separation and collection step S4 of separating and collecting a non-ferrous component, a metal component separation and collection step S5 of sorting a metal component, wind power sorting steps S2, S6, S8, and S9 of sorting floating fibrous dust and a settled crushed material by wind power, and a shredding step S7 of shredding the settled crushed material into a predetermined size is separated into metal scraps such as copper, aluminum, and iron, fibrous dust, and particulate dust in a separating step S11. Fibrous dust and particulate dust are separately collected and are used as various fuel resources for household, business, and industry.

A lead needle and lead slime separator for treating thin lead grid of waste lead-acid storage battery, includes: a barrel body, corrosion-resistant and wear-resistant balls, a feed device, a bracket device, a discharge device and a driver. A feed hole is arranged at one end of the barrel body, a discharge port is arranged at the other end of the barrel body. The feed device is mounted at the feed hole, and the discharge device is mounted at the discharge hole. The bracket device is connected to the barrel body, the driver is connected to the barrel body. The corrosion-resistant and wear-resistant balls are arranged in the barrel body. The separator can make the thin lead grid separation complete, clean and impurity-free. It does not need to be melted at high temperature in the melting furnace.