Abstract:
A method of treating municipal solid waste comprising the steps of: shredding the waste to a first particle size,—storing the shredded waste in an aerated storage bay (14) for a first period time; shredding at least some of the waste to a second particle size,—and agitating the shredded waste in a rotating drum (19) for a second period of time and then outputting the treated waste; wherein biological decomposition under aerobic conditions takes place in the aerated storage bay and the rotating drum.
Abstract:
A recycling plant comprises a main conveyor that rotates horizontally near ground level. Collected mixed refuse is brought in by trucks on a driveway surrounding the main conveyer. Loaders or dozers are used to move the refuse onto the main conveyer where it will enter a processing unit straddling the main conveyer. Two or more such processing units can be positioned around the circle formed by the main conveyer. An adjustable height conveyer rides on top of the heaps of refuse entering on the main conveyor and compresses the mass so it can enter a first grinding mill. The refuse is ground and torn into small pieces. A second grinding mill further reduces the size of the pieces. A magnetic pickup uses electromagnets to levitate out bits of iron and steel which are carried away and put in a salvage bin. A manual sorting and picking station with takeaway conveyors and salvage bins allows personnel to manually pick paper, plastic, and glass for recycling. A third grinding mill reduces the remainders to particle suitable for incineration. A vacuum sweeper lifts these particles up and through a flue to a surge bin. A screw feed carries material into a combustion chamber. The combustion products precipitate slag which is carried away and gases that move on to a dilution chamber.
Abstract:
A waste disposer safety device comprises a first member positionable adjacent access to a waste disposer and a second member with access restriction, the first and second members being rotatable with respect with one another to achieve an "off" position and an "on" position whereby in the "on" position, in which operation of the waste disposer is enabled, there is no hazardous access to the grinding chamber thereof, and an "off" position in which the second member can be removed for access to the grinding chamber whereby in that position the grinder motor is inoperable. Switches for accomplishing the on/off condition of the first member and second member and of the waste disposer may be electromechanical or magnetic, among other types of switches.
Abstract:
An impact reactor for comminuting composite materials having a rotor with impact elements is arranged in a cylindrical casing. An end face of the impact reactor, remote from the rotor, is closed by a cover. A suction opening is assigned to the cover and a classifying device is assigned to the suction opening. Such an impact reactor may be used to process, by way of example, accumulator batteries, mineral wool and raw material.
Abstract:
A plant for shredding metal waste, comprising at least one working chamber, means for shredding metal waste and motor means operatively connected to the shredding means. The plant further comprising sensor means operatively associated with the motor means and/or shredding means for monitoring at predetermined time intervals at least one working parameter connected to the wear thereof, and at least one data processing unit operatively connected to the sensor means. The data processing unit including: data storage means for storing for a predetermined period of time the values of said at least one working parameter detected by said sensor means and an an artificial intelligence software program so as to allow the plant manager to plan the maintenance of the motor means and/or shredding means.
Abstract:
An apparatus for the separate collection of rubbish includes a containing structure provided with an internal compartment in which there are a plurality of rubbish collection containers and at least a first and a second aperture for access to the internal compartment from the outside, in order to introduce the rubbish.
Abstract:
A carpet recycling method is disclosed. In a toroidal flow pulper, pieces of carpet are disintegrated in a quantity of liquid to form a slurry of fibrous carpet materials and carpet ash. At least a portion of the fibrous carpet materials are separated from the slurry, and the separated fibrous carpet materials are dried. At least a portion of the carpet ash is isolated from the slurry, and the isolated carpet ash is dried. Thus, a first output comprising dried separated fibrous carpet materials is produced, and a second output comprising dried carpet ash is produced.
Abstract:
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.
Abstract:
An aggregate production method includes procuring stone waste by-products, sorting the stone waste by-products by type and color, and subjecting the sorted stone waste by-products to a two-stage crushing process to produce aggregate. The aggregate is screened into different sizes and placed according to size into a bag or container.
Abstract:
Disclosed herein are systems and methods for processing waste egg shells into (i) a first product including calcified egg shell particles having diameters of 3 μ or less, and (ii) a second product including calcified egg shell particles having diameters in a range from about 3 μ to about 7 μ. The first product may be used as a CaCO3 substitute for paint compositions and plastics compositions. The second product may be used as a CaCO3 blasting media substitute for use with abrasive blasting equipment.