F23G2209/28

Method for burning solid or semi-solid fuel
20190330550 · 2019-10-31 ·

A mixed low-carbon alcohol ignition agent in a gel paste or a thin cake, and a cylindrical fire-leading coal and a cylindrical coal placed underneath having a high volatile content and honeycomb-like vent holes which are made from solid fuels such as bitumite, lignite, biomass fuels, polyolefin and waste plastics as well as nontoxic excipients, are vertically combined into a coal pile to be combusted in a furnace core, and the number of the pile may be increased. A firing slip of paper is thrown in to ignite the ignition agent from the top, a long-flame combustion is generated soon, and the fire-leading coal catches fire. A high-temperature zone ranging from 400 C. to 800 C. may be rapidly formed in a simple large combustion chamber between the top of the coal pile and the fire-gathering plate. The radiant heat plus the conductive heat is greater than the convective heat, and the red hot coal layer on the surface of the fire-leading coal will gradually move down at a rapid speed, which causes the coal placed underneath to catch fire. The three major components of the coal pile are elaborately formulated and prepared. The material of the furnace core must fit the coal pile. The high-temperature zone is in the upper portion and the low-temperature zone is in the lower portion, which produces an orderly, long-flame, complete combustion and a static combustion without an air blast, thus realizing a combustion with zero smog throughout the whole process starting from the moment of ignition. In addition, the sulfur-fixing rate is high, the cleanliness of the exhaust gas is close to that of natural gas, the exhaust gas may be discharged directly, the heat-generating efficiency is high, the cost is low, the slag is used as a fertilizer, and it is suitable for various small- and micro-sized stoves for heating and warming.

Rotary kiln for the evaporation of thermoplastic waste
11988382 · 2024-05-21 · ·

This invention relates to a rotary kiln (1) for cracking open and evaporating size-reduced plastic waste, consisting of a cylindrical kiln housing (2) the wall of which can be heated to the respective evaporation temperature. The kiln housing (2) is bearing mounted so as to be rotatable around a longitudinal axis (X-X). Within the kiln housing (2) a fixedly positioned feed device (5) for the size-reduced plastic waste is placed running in the longitudinal direction of the kiln housing. The feed device (5) at least one-sidedly protrudes with a loading section (6) through a feed opening at an end side of the kiln housing (2), which loading section (6) can be connected to a material feed device (7). At the end side situated opposite the feed opening a gas suction opening (20) is situated in the kiln housing (2). The feed device comprises a conveyor device (5) and a conveyor tube (8), extending along the full length of the kiln housing (2), in which the conveyor device (5) for the size-reduced plastic waste is arranged in such a way that the plastic waste is moved from the loading section (6) in longitudinal direction through the kiln housing (2). The conveyor tube (8) has an outer sleeve (10) configured such that in the interior of the conveyor tube (8) an operational temperature prevails that is below the melting temperature of the size-reduced plastic material. Outlet openings (16, 16a, 16b, 16c, 16d, 16e) for the size-reduced plastic material are positioned such in the conveyor tube (8) including the sleeve (10) that the size-reduced plastic material drops out of the outlet openings (16, 16a, 16b, 16c, 16d, 16e) directly onto the opposite interior side of the kiln housing (2).

ORGANIC POLYMER WASTE MATERIAL DISPOSAL DEVICE
20190218461 · 2019-07-18 ·

The present invention provides an organic polymer waste material disposal device, which is mainly composed of a flue gas circulation system, a poor-oxygen cycle de-polymerization device, an oil-gas separation system and a waste residue collection system. The poor oxygen cycle de-polymerization device is divided into an inner chamber and an outer chamber, the flue gas circulation system sends low-temperature poor-oxygen gas to the inner chamber for de-polymerization reaction, and sends high-temperature flue gas to the outer chamber for auxiliary heating, which re-enters the flue gas circulation system; when the waste is subjected to poor-oxygen de-polymerization reaction, and has reaction in the inner chamber, the waste respectively enters the oil-gas separation system, and the waste residue collection system, thus producing the efficient separation of oil, gas and residue.

Hand-held medication and electronic waste incinerator

A hand-held, disposable incinerator for medications and electronic storage media includes a body and a lid, a layer of insulation, and a chemical burn agent, which on ignition produces both heat and oxygen to destroy the contents. Exhaust gases pass through a non-combustible filter to remove most solid particles and contaminants, followed by a second, higher-efficiency filter. Hot gases exiting from the incinerator then desirably ignite again from their own heat, consuming remaining volatile organic matter distilled from the items being destroyed. An igniter, which may be a fuse, a pull-tab-activated pyrotechnic delay or an electronically remote-triggered igniter, provides a delay for the safety of the person using the incinerator. Heat generated within the burn chamber decomposes most organic materials, melts soft metals including aluminum and electronic solder, and renders data storage devices unreadable. At least an inner portion of the device may be safely discarded.

Reactor feed systems
12018213 · 2024-06-25 · ·

A feed system for a reactor, a reactor assembly comprising such a feed system, and a method of supplying a feed material to a reactor with a feed system are provided. The reactor may be a pyrolysis reactor, such as a fluidised bed pyrolysis reactor. A method of pyrolysing a feed material is also provided. The feed system may comprise a feed conduit extending from an inlet to an outlet, and may have a first section including the inlet and a second section including the outlet. The first section may accommodate an auger. The second section may comprise at least one plug forming zone in which feed material is compressed into a substantially gas-tight plug during operation. There may be a temperature regulator for controlling the temperature in the second section. The temperature regulator may comprise a cooling jacket.

COMBUSTIBLE WASTE TREATMENT METHOD
20240230083 · 2024-07-11 ·

Provided is a combustible waste treatment method capable of suppressing the falling rate of even combustible waste having relatively poor combustibility into a clinker during combustion.

The combustible waste treatment method includes: blowing first combustible waste having flammability into a kiln from a first waste burner disposed at a position vertically above a main burner blowing main fuel; and blowing second combustible waste having flame retardancy into the kiln from a second waste burner disposed at a position vertically above the first waste burner.

PROCESS FOR RECYCLING WASTE CONSISTING OF POLYMERIC, COMPOSITE AND INDUSTRIAL RUBBER MATERIALS
20240279552 · 2024-08-22 ·

This invention details a method and device for recycling polymeric, composite, and industrial rubber waste. It involves a bath of liquid-metal coolant, made by melting metals like lead, bismuth, zinc, aluminum, and copper. This coolant is heated to 50-150? C. above its melting point. A layer of melted salts of alkaline and alkaline-earth metals is formed on the coolant's surface, topped by a purifying layer of melted active alkaline or alkaline-earth metals. Waste is pre-loaded into perforated-wall containers with horizontal partitions and submerged in the coolant bath, then removed after processing. The device includes guide rails, an internal space with a hearth, side walls, roof, inlet and outlet sluices, and a reaction chamber. This process improves desulphurization and dichlorination of pyrolysis products, yielding a solid carbon-containing residue.

TEMPERATURE PROFILE IN AN ADVANCED THERMAL TREATMENT APPARATUS AND METHOD
20180237707 · 2018-08-23 ·

Applying heat from a heat source to a first region to cause a first pyrolysis process, the first pyrolysis process resulting in a gaseous mixture, and applying heat from the heat source to a second region to cause a second pyrolysis process, the second pyrolysis process being applied to the gaseous mixture, wherein the second region is located closer to the heat source than the first region. Pyrolysis is used to destroy oils, tars and/or PAHs in carbonaceous material.

Plastic Recycling Furnace System
20240367351 · 2024-11-07 ·

A plastic burning furnace system is disclosed. The system can accommodate different plastic waste sizes and is adaptable for both commercial and residential use. The system comprises an upright stainless-steel cylinder with a secure trap door for introducing plastic waste for recycling. A controllable burner initiates melting and burning at the bottom of the cylinder. Smoke resulting from the process is effectively filtered through a series of carbon filters positioned inside the cylinder, and a heat-safe extension cap safely releases the treated fumes into the atmosphere. The molten plastic is poured into color and size-varied disc molds for creating discs for reuse/discardment. The system also includes a smoke meter for providing real-time feedback on smoke levels and a protective boundary for the safety of users.

WASTE PROCESSING APPARATUS
20170159931 · 2017-06-08 · ·

A pyrolyser may include a rotary kiln configured to pyrolyse feedstock material received therein. The pyrolyser may also include a heating vessel surrounding the rotary kiln and defining a heating chamber for hot gases. The pyrolyser may further include an agitator disposed within the heating chamber. The agitator may be configured to agitate the hot gases. The agitator may be rotatable with the rotary kiln.