Patent application number | Description | Published |
20090250535 | Waste treatment vessel with two doors and environmental separation between doors - The present invention includes an apparatus for processing solid waste products, the apparatus comprising: (a) a rotatably mounted cylindrical vessel having a first end and a second end, a hatch at both the first end and the second end that may be opened to allow access to the interior of the vessel to a respective first and second environmental space outside the interior of the vessel, and sealably closed to allow pressurization of the vessel; (b) a steam inlet for injecting steam into at least one of the ends; and (c) an environmental barrier for at least partially separating the environments of the first and second environmental space. | 10-08-2009 |
20100074798 | Waste processing apparatus and method - The present invention includes an apparatus and method for processing solid waste products. The apparatus comprises a rotatably mounted cylindrical vessel having a first end, a second end and an interior surface, at least one end terminating in a hatch that may be opened to allow access to the interior of the vessel and sealably closed to allow pressurization of the vessel; a steam inlet for injecting stem disposed at one or both ends; a plurality of substantially straight blades protruding from the interior surface of the vessel, and each the blade extending substantially the entire length of the vessel, so as to be capable of transporting waste material from the bottom of the vessel toward the top of the vessel, and releasing the waste material to fall to the bottom of the vessel. The apparatus also includes one or more actuators for moving the vessel between a position wherein the first end is higher than the second end and a position wherein the second end is higher than the first end. | 03-25-2010 |
20100092356 | Solid waste compression loading and waste treatment apparatus and method - The invention includes an apparatus, system, waste treatment facility and method of autoclave loading and treatment that involves (a) receiving solid waste at a solid waste treatment facility; (b) compressing the waste into a plurality of compressed bales, the compressed bales bound by a binding material adapted to melt at a temperature at which an autoclave operates or otherwise break upon the operation of the autoclave; (c) loading the compressed bales into an autoclave; and (d) operating the autoclave so as to melt or break the binding material to allow the compressed bales of solid waste to be decompressed and treated in the autoclave. | 04-15-2010 |
20100129257 | Waste treatment vessel featuring tilt mechanism and associated door arrangement - The present invention includes an apparatus for processing solid waste products, the apparatus comprising: (a) a rotatably mounted cylindrical vessel having a first end and a second end, at least one of the ends terminating in an opening to allow access to the interior of the vessel and to sealably close the vessel to allow pressurization thereof, the vessel adapted to move between an operating position and loading-discharge position wherein the first end is higher than the second end; (b) at least one door adapted to sealably close the vessel at at least one end, the door adapted to be completely separated from the vessel; (c) a steam inlet for injecting steam into the vessel; (d) at least one actuator for moving the vessel between an operating position and a loading-discharge position wherein the first end is higher than the second end; and each opening provided with a door that is completely detachable from the vessel; and (e) a respective attachment portion adapted to attach each door to the vessel. | 05-27-2010 |
20100135851 | Waste treatment autoclave to provide for steam - assisted drying - An autoclave system provides a means of sterilizing municipal solid waste, hydrolyzing many of its components, and preparing the material for post-autoclave automated separations. The present apparatus provides a means of drying the solid waste in the vessel, while conserving the energy used to dry the vessel. Non-contact steam is recovered through separations of steam and water, with condensate steam pressure regenerated by mechanical vapor recompression and condensate water returned to the boiler/steam generator. Heat transfer to combustion air, by heat transfer via heat pump to generate additional steam, and/or by mechanical vapor recompression recovers the latent heat of loose contact steam condensate. The process design provides for in-vessel drying while reducing the energy cost of operating a waste autoclave, as compared to the current art. | 06-03-2010 |
20100163396 | Waste processing apparatus and method featuring power generation, water recycling and water use in steam generation - The present invention includes systems, apparatus and methods for processing solid waste products. The present invention includes an apparatus and method of processing solid waste products in an autoclave, comprising the steps: (a) loading the autoclave with a charge of solid waste products containing water; (b) sealing the autoclave; (c) rotating the autoclave while heating the autoclave such that the charge of solid waste products containing water creates steam in the autoclave, and whereby so waste liquid water or steam and cellulosic material are produced; (d) conducting liquid water or steam from the autoclave to a water cleaning system and then to a heat recovery steam generator so as to generate steam therefrom; and (d) reintroducing the steam generated by the heat recovery steam generator into the autoclave. The system preferably is a closed loop system to conserve water. The system also includes equipment to convert cellulose into fuels and energy, and some of the fuels and energy are directed to the production of electricity and steam to support the needs of the autoclave and the balance may be commercially sold. | 07-01-2010 |
20100200683 | METHOD AND APPARATUS FOR TREATING WASTE INVOLVING CONTROL OF ENERGY INPUT TO ASSURE STERILIZATION - The present invention is a method and apparatus for controlling the processing solid waste material in a vessel during a processing cycle, comprising: (1) loading the vessel with a charge of solid waste products, said vessel comprising: (a) a rotatably mounted cylindrical vessel having an interior surface and two ends, at least one end terminating in a hatch that may be opened to allow access to the interior of said vessel and sealably closed to allow pressurization of said vessel; (b) a vessel steam inlet for injecting steam into at least one of said ends so as to come into contact with waste material placed into said vessel; (c) a thermometer adapted to monitor the processing temperature of the waste material placed into said vessel during an operational cycle; (d) a timer adapted to monitor the processing time of an operational cycle for the waste material placed into said vessel; (e) a microprocessor having processing instructions adapted to calculate the required processing time by integrating the function of the said processing temperature versus the processing time so as to be able to determine whether a predetermined energy input to the waste material has been attained, and to issue a signal in response thereto; and (2) terminating said processing cycle in response to said signal. | 08-12-2010 |
20130146689 | PROCESS FOR RECYCLING ABSORBENT SANITARY PRODUCTS - A process for treating used absorbent sanitary products, comprising the steps of providing a rotary cylindrical autoclave having an inner surface and two ends, at least one of which terminates in a hatch that can be opened to enable access to said autoclave and sealably closed to enable pressurization of said autoclave; loading said autoclave with closed absorbent sanitary products; heating to a sterilization temperature and pressurizing said autoclave and at the same time driving the autoclave in rotation about a longitudinal axis thereof; and providing inside said autoclave a load of high-density tearing elements designed to facilitate thermal and physical destructuring of said absorbent sanitary products. | 06-13-2013 |
20130146690 | APPARATUS AND PROCESS FOR RECYCLING ABSORBENT SANITARY PRODUCTS - An apparatus for treating used absorbent sanitary products, comprising, a rotary cylindrical autoclave having an inner surface and two ends, at least one of which terminates in a hatch that can be opened to enable access to said autoclave and sealably closed to enable pressurization of said autoclave; and a circuit for heating and pressurizing the autoclave for heating the absorbent sanitary products to a sterilization temperature, wherein said autoclave comprises a sealing layer on said inner surface, designed to prevent adhesion on said inner surface of material coming from destructuring of said absorbent sanitary products. | 06-13-2013 |
20130153692 | PROCESS FOR RECYCLING ABSORBENT SANITARY PRODUCTS - A process for treating used absorbent sanitary products, comprising the steps of providing a rotary cylindrical autoclave having an inner surface and two ends, at least one of which terminates in a hatch that can be opened to enable access to said autoclave and sealably closed to enable pressurization of said autoclave; loading said autoclave with closed absorbent sanitary products; heating and pressurizing the autoclave to a sterilization temperature and at the same time driving the autoclave in rotation about a longitudinal axis thereof, wherein said step of heating and pressurizing the autoclave envisages a first temperature regime for the products contained in the autoclave and a second temperature regime, higher than the first temperature regime, for said inner surface. | 06-20-2013 |
20130153693 | APPARATUS AND PROCESS FOR RECYCLING ABSORBENT SANITARY PRODUCTS - An apparatus for treating used absorbent sanitary products, comprising a rotary cylindrical autoclave having a side wall and two ends, at least one of which terminates in a hatch that can be opened to enable access to said autoclave and sealably closed to enable pressurization of said autoclave; a circuit for heating and pressurizing the autoclave for heating the absorbent sanitary products to a sterilization temperature; and a plurality of cutting nozzles supplied by pressurized fluid, which are arranged for directing respective jets of pressurized fluid inside said autoclave. | 06-20-2013 |
20130309143 | SOLID WASTE COMPRESSION LOADING AND WASTE TREATMENT APPARATUS AND METHOD - The invention includes an apparatus, system, waste treatment facility and method of autoclave loading and treatment that involves (a) receiving solid waste at a solid waste treatment facility; (b) compressing the waste into a plurality of compressed bales, the compressed bales bound by a binding material adapted to melt at a temperature at which an autoclave operates or otherwise break upon the operation of the autoclave; (c) loading the compressed bales into an autoclave; and (d) operating the autoclave so as to melt or break the binding material to allow the compressed bales of solid waste to be decompressed and treated in the autoclave. | 11-21-2013 |