A shredding device is provided comprising two shredding shafts arranged parallel to each other with shredding elements arranged thereon, wherein the shredding shafts are preferably rotatable mechanically synchronized to each other. A shaft-side coupling element is connected to a respective first end of the shredding shafts. The shredding device includes a housing with a housing-side coupling element is provided that can be coupled to the shaft-side coupling element. The shredding device includes a displacement device enabling displacement of the shredding shafts for decoupling and coupling the shaft-side coupling element from or to the housing-side coupling element.

A waste management system for plastic or other material floating on the surface and in the subsurface of a body of water. A shredding device will reduce the size of the particles of waste. Ocean water is removed by a drying device. The dried waste material is frozen to a temperature at or below minus fifty degrees Fahrenheit, using liquid nitrogen or other suitable means. The frozen waste material is then pulverized and ground into a powder. The powder may then be sprayed into a gas-filled chamber and heated. Temperature, pressure and humidity are maintained within the chamber for more than one minute. Microwave or other radiation and catalysts may be used to enhance the process of extraction. The processed material is then removed from the chamber. Carbon may be recycled or used as fuel by the ship. Water may be used by the ship or returned to the ocean.

The present invention relate to a waste mask treatment device using a sterilizing material, and more particularly, to a waste mask treatment device including: a body with an inlet adapted to insert a waste mask thereinto; a pulverization part located inside the body to pulverize the waste mask into pieces of mask; a sterilization part for emitting a sterilizing material for sterilizing the pieces of mask; and a collection part for collecting the pieces of mask. Accordingly, the waste mask treatment device is capable of being conveniently movable, being compact in size, and eliminating more than 99.99% of harmful bacteria living on the disposable mask through the sterilizing material.

A cooking apparatus can include an enclosure defining a heating chamber configured to be heated and used for cooking food, a burn box proximate to the enclosure and which is configured to provide heat to the heating chamber, a hopper fluidly coupled to the burn box and configured to hold fuel, and a fuel conditioner disposed between the hopper and the burner to condition the fuel prior to burning in the burner. The fuel conditioner can be, for example, a wood chipper configured to reduce the size of the fuel.

A comminuting device for solids-conducting liquids includes a housing with an inlet opening, an outlet opening and a housing interior space which extends from the inlet opening to the outlet opening. A first comminuting shaft arranged for rotation about a first comminuting shaft axis, and a second comminuting shaft arranged for rotation about a second comminuting shaft axis through the housing interior space. A first screen device is arranged in the housing interior space adjacently with respect to the first comminuting shaft with a first screen wall having a multiplicity of slots. A first evacuating device with a plurality of evacuating elements which can be moved along a movement path relative to the screen wall extends through the plurality of slots on at least one portion of the movement path.

A waste management system, primarily intended to be for waste floating in water, though it can also be used on land. A shredding device will reduce the size of the particles of waste. Ocean water is removed by a drying device. The dried waste material is cryogenically frozen using liquid nitrogen or other suitable means. The frozen waste material is then pulverized and ground into a powder. The powder may then be sprayed into a gas-filled chamber and heated. Temperature, pressure and humidity are maintained within the chamber for more than one minute. Microwave or other radiation and catalysts may be used to enhance the process of extraction. The processed material is then removed from the chamber. Carbon and water may be recycled. The carbon may be used as fuel by the ship. Water may also be used by the ship or returned to the ocean in a non-toxic condition.

A coarse crusher includes a coarsely crushing unit configured to coarsely crush a sheet piece having an elongated shape, a hopper having a feed opening through which the sheet piece is fed to the coarsely crushing unit, the hopper being configured to feed the sheet piece putted into the hopper to the coarsely crushing unit through the feed opening, and a posture adjuster configured to adjust posture of the sheet piece. The hopper includes two guide plates facing each other with the feed opening therebetween and configured to guide the sheet piece to the coarsely crushing unit and two coupling plates coupling the two guide plates to each other. The posture adjuster includes a protrusion disposed on at least one of the coupling plates and protruding toward an inner side of the hopper. The posture adjuster is configured to come in contact with the sheet piece being coarsely crushed by the coarsely crushing unit to adjust the posture of a portion of the sheet piece that is remote from the coarsely crushing unit.

An automatic shredder comprises an upper shredder cover, a lower shredder cover, a first paper box, a second paper box, a shredder cover plate, a paper pressing plate, a paper pressing roller set, a paper pick-up roller set, a paper inlet, a cutter shaft set, a drive motor, a shell and a waste paper barrel. The automatic shredder adopts a bent paper box to change the length of to-be-shredded paper by means of the flexibility and bendability of paper and the features of paper pick-up rollers on one side, is extremely simple and economical, and changes the flat paper placement structure of existing automatic shredders.

An apparatus and method for automatically preparing a mixture of particles of two or more substances such as but not limited to raw tobacco and raw medical cannabis flowers in one or more receptacle where the mixture proportion is predefined, is disclosed. The apparatus of the invention can be used for mixing any types of herbal substances. Moreover, the apparatus of the invention can be used for mixing one or more kinds of the same substance, for example mixing two or more kinds of marijuana strains. The apparatus includes one or more compartments for inserting each of the substances separately. In some variations of the present invention the size of at least one of the compartments is smaller for predefined smaller quantities of raw herbal material for example, a single marijuana flower.

An illustrated view of an exemplary cardboard shredder for compressing and shredding cardboard is presented. The cardboard shredder provides a shredder for cardboard to facilitate recycling while reducing storage space needed before cardboard enters a recycling stream and cutting out the middleman, thus the recycler receives uncontaminated cardboard since it is not mixed in with other materials. The manufacturer receives clean shredded cardboard for reuse, reducing headcount for the plant by reducing and eliminating their shredders being jammed with plastic. The cardboard shredder further saves space in residential and commercial spaces and increases intervals between container emptying, thus making recycling of cardboard easier while saving time and money. The carboard shredder is designed to fit over standing large garbage cans to eliminate double handling of the cardboard prior to recycling. The cardboard shredder further accommodates larger sizes of product to be shredded than a conventional paper shredder encouraging recycling of cardboard.