A system for disposing a high-moisture mixed waste composed of kitchen garbage and water-containing sludge is provided, including a mixed waste storage device, a mixed waste primary-drying device and a mixed waste incinerating device. The mixed waste primary-drying device includes a mixed waste primary-drying body, a primary-drying material inlet, a primary-dried material outlet, a drying gas inlet and a primary waste gas outlet. A discharging outlet of the mixed waste storage device is connected with the primary-drying material inlet through the first conveying belt. The mixed waste incinerating device includes an incinerator, an incineration material inlet, an incineration material outlet, a combustion-supporting gas inlet and a flue gas outlet. The incineration material inlet is connected with the primary-dried material outlet through the second conveying belt and the combustion-supporting gas inlet is connected with the primary waste gas outlet. The flue gas outlet is connected with the drying gas inlet.

The present invention provides methods and systems for processing raw wood fiber to stabilize the shape and dimensions of the wood produced from the raw wood fiber following processing, by heating the raw wood fiber in a substantially oxygen-free atmosphere with combustion gas and super heated steam. The combustion gas is generated by burning a wood fiber-based fuel.

The present invention relates to an improved food waste dryer utilizing waste heat, which includes a main frame, a dryer drum with an access door, to be positioned in the main frame, and an agitator positioned in the dryer drum. The improved food waste dryer comprises: a waste heat supply unit, a heating jacket positioned on the outer surface of the dryer drum, with a hot-air inlet to receive the waste heat from the waste heat supply unit and a hot-air outlet to discharge the waste heat inside the dryer drum, and a condensation system positioned in the main frame, to remove moisture included in the interior air of the dryer drum to increase the drying efficiency of the food waste dryer utilizing waste heat.

A heater (160) is provided for use in curing tobacco or other similar processes. The heater comprises: a furnace (211) having a chamber in which to burn fuel to generate heat; and a heat exchanger (230) for transferring heat from the heater to an airflow for use in curing the tobacco or other similar process. The airflow passes outside the heater. The heat exchanger has one or more pipes (220B-2,220A-2) that connect into the chamber of the furnace and is integrated into the furnace. For example, the heat exchanger may have a plurality of pipes (220B-2,220A-2) that connect into the chamber of the furnace, wherein the plurality of pipes (220B-2,220A-2) comprises two rows of pipes, one on each side of the furnace. The heat exchanger may further include a plenum (231B, 231A), wherein each of the pipes (220B-2,220A-2) leads upwards from the furnace chamber (211) to the plenum (231B, 231A). The heat exchanger may be integrated into the furnace by the use of one or more welded junctions.

Disclosed is a slurry drying plant (1) comprising a slurry extruder (3) including a slurry inlet (2) and conveying means (4) arranged to convey the slurry through the slurry extruder (3) and force the slurry out of a plurality of exit openings (5) of the slurry extruder (3) to form a plurality of slurry strings (7), wherein the slurry strings (7) are forced out into a drying chamber (8) in which the plurality of slurry strings (7) is dried. The slurry drying plant (1) further comprises slurry heating means (6) comprising flow means for passing superheated steam past the slurry strings (7) in the drying chamber (8), and inlet pressure detection means (9) for detecting a slurry inlet pressure at the slurry inlet (2). The slurry drying plant (1) also comprises control means (17) arranged to control the conveying speed of the conveying means (4) in response to the slurry inlet pressure. Furthermore, a method for drying slurry and use of a slurry drying plant (1) is disclosed.

The present invention relates to an improved food waste dryer utilizing waste heat, which includes a main frame, a dryer drum with an access door, to be positioned in the main frame, and an agitator positioned in the dryer drum. The improved food waste dryer comprises: a waste heat supply unit, a heating jacket positioned on the outer surface of the dryer drum, with a hot-air inlet to receive the waste heat from the waste heat supply unit and a hot-air outlet to discharge the waste heat inside the dryer drum, and a condensation system positioned in the main frame, to remove moisture included in the interior air of the dryer drum to increase the drying efficiency of the food waste dryer utilizing waste heat.

Systems and processes provide for a thermal process to transform sludge (and a variety of other natural waste materials) into electricity. Dewatered sludge and other materials containing a high amount of latent energy are dried into a powdered biofuel using a drying gas produced in the system. The drying gas is recirculated and is heated by the biofuel produced in the system, waste heat (from turbines or internal combustion engines), gas (including natural gas or digester gas) and/or oil. The biofuel is combusted in a boiler system that utilizes a burner operable to burn biofuel and produce heat utilized in a series of heat exchangers that heat the recirculating drying air and steam that powers the turbines for electricity production.

The present invention relates to methods and systems for processing sewage sludge using a gasification process. The gasification process takes place at high temperatures in an oxygen-starved environment, which enables carbon-containing materials in the sewage sludge to chemically react under the preferred temperature and oxygen levels, resulting in the formation of usable products, including ash, electricity, and syngasall of which are generally environmentally benign.

The present invention relates generally to systems and methods for drying and gasifying substances using the calorific value contained in the substances, and it more specifically relates to apparatus and methods for processing wet, pasty, sticky substances, such as municipal wastewater treatment sewage sludge, into a workable, powdered product.

A supercritical drying method for a semiconductor substrate is disclosed. The method may include introducing the semiconductor substrate into a chamber in a state, a surface of the semiconductor substrate being wet with alcohol, substituting the alcohol on the semiconductor substrate with a supercritical fluid of carbon dioxide by impregnating the semiconductor substrate to the supercritical fluid in the chamber, and discharging the supercritical fluid and the alcohol from the chamber and reducing a pressure inside the chamber. The method may also include performing a baking treatment by supplying an oxygen gas or an ozone gas to the chamber after the reduction of the pressure inside the chamber.