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Document Title |
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4961390 |
Perforated plugs for air holes in a rotary combustor
Perforated plugs fitted into combustion air holes in a rotary combustor in which combustion air for burning municipal solid waste passes through the perforations to prevent molten aluminum and...
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4957434 |
Method and apparatus for treating asphaltic concrete paving materials
A method of heating reclaimed asphalt paving is shown and described. An air sorter removes fine materials from the reclaimed asphalt paving, and an air circulating dryer which utilizes high...
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4957433 |
Drum baffle
A plurality of variable pitch baffles for diffusing hot combustion gases flowing through an asphalt drum mixer is provided. Each baffle, which is internally mounted at an intermediate location...
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4953480 |
Rotary waterwall combustor with improved tire attachment
An improved attachment for positioning a rotary waterwall combustor within a tire so it rotational axis is fixed and the rotary waterwall combustor, the tire and the attachment linkage are free to...
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4948365 |
High-temperature, gas-burning furnace
A novel high-temperature, gas-burning furnace has a rotating porous-ceramic bed, which serves the integral functions of wall insulator, thermal regenerator, combustion chamber, and radiant heater....
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4889484 |
Portable soil decontamination kiln
In a thermal reductor unit for decontaminating soil of combustible and volatile fluids, as interior drum is mounted concentrically within a shell in surrounding relation to an ignition chamber. An...
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4861265 |
Apparatus and method for the heat treatment of fine-grained material
The invention relates to apparatus and to a method for the heat treatment of fine-grained material using a multi-stage cyclone preheater and a combustion chamber supplied with tertiary air from the...
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4836775 |
Air cooled rotary kiln collar
An air cooled rotary kiln collar for use in improving the delivery of preheated charge material from the rotary kiln to the second stage of a multi-stage heating process. Adjustable rate fans...
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4834648 |
Rotary calcining kiln
A calcining kiln for decontaminating and detoxifying materials, such as earth, contaminated by hazardous chemicals and substantially incapable of autogenous combustion, consisting of an elongated...
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4832598 |
Pulse combustion apparatus
A pulse combustion dehydration apparatus includes a pulse combustor designed to operate with a low pressure fuel gas supply and having valve means to stop the supply of gas to the combustion...
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4815969 |
Heat loss reduction in rotating drum dryers
A drum dryer for use in the manufacture of bituminous concrete asphalt is provided with a jacket including a layer of ceramic fiber insulation bonded to an outer sheath of aluminum, the jacket...
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4782769 |
Apparatus for preventing clogging of rotary combustors by low-melting temperature metal
A rotary combustor for incinerating solid waste material, such as municipal trash, includes a combustion barrel supplied by air through windboxes underneath the barrel. Molten metal, such as...
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4782768 |
Rotary combustor with efficient air distribution
An improved rotary combustor has side walls with slanted openings. Air used to support combustion passes through the slanted openings and is directed at an acute angle to a vector in the direction...
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4776788 |
Rotary kiln
A kiln is disclosed which includes an elongated housing formed by a plurality of interconnected longitudinally extending sections each forming an independent housing module. Each housing module has...
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4765255 |
Perfected system for pyrolysing and/or drying biological sludge or similar
A system for pyrolysing/drying biological sludge by indirectly heating the same by means of hot fumes, characterized by the fact that it incorporates a rotary furnace secured angularly to a cover...
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4759033 |
Temperature measurement of hot mineral product by induced fluorescence
The present invention is a method of measuring the temperature of a hot crystalline material. It is especially well adapted for measuring the temperature of mineral products within or being...
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4724778 |
Air control for combustor
A rotary combustor, in which material is burned in a gas porous cylinder, having a sectioned and compartmented wind box permitting selective delivery of air through the burning material, above the...
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4696116 |
Mounting structure for rotary drum dryer
A mounting structure for use in rotationally supporting a rotatable drum dryer is provided which prevents spauling, flaking and pitting of the dryer tracks, which supports the rotational movement...
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4684342 |
Method and apparatus for the thermal treatment of a batch of raw material
An apparatus for the thermal treatment of a batch of raw material has a casing and a drum rotatably mounted in the casing, the drum being made of good thermally conductive material and being...
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4676740 |
Heat exchange apparatus and process for rotary kilns
Heat exchange apparatus is provided for use in a rotary kiln having a bed therein for introducing thermal energy directly into central portions of the bed without lifting or tumbling thereof. In...
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4676739 |
Pre-expander for expandable polymer beads
A pre-expander for polymer beads is disclosed which includes a pre-expansion chamber having an agitator therein. The agitator is driven by an electric motor. The power requirements of the motor are...
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4642048 |
Apparatus for continuously preheating and charging raw materials for electric furnace
It is provided as shown in the drawing with a waste gas guiding duct, a rotating duct, an inserting duct, a connecting duct, a stationary duct, and a branch tube including a feed chute and a gas...
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4624576 |
Adjustment of drum mixer trunnions
In a mixer having an elongated rotatable drum surrounded by coaxial front and rear tires, the invention facilitates adjustment of the positions of the two trunnion units that supportingly and...
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4606904 |
Apparatus for the manufacture of calcined aluminum fluoride
The invention relates to a method of manufacturing calcined aluminum fluoride, AlF 3 , from aluminum fluoride hydrate, especially aluminum fluoride trihydrate, AlF 3 .3H 2 O, by drying and...
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4511266 |
Arrangement for mounting a bearing ring on a rotary cylinder
A rotary kiln construction of the type where a cylindrical kiln is supported for rotation on an annular bearing ring wherein the ring has an inner circumference larger than the outer circumference...
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4510369 |
Rotary furnace
The rotary furnace has a generally cylindrical rotatable outer member that is driven by a belt and pulley arrangement. An inner member that defines the confines of the heating chamber is freely...
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4507080 |
Laundry dryer
A commercial laundry dryer with a perforated drum for the laundry mounted in a housing to rotate on a horizontal axis and the drum is of the full width and length of the housing to maximize the...
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4500285 |
Arrangement for mounting a barrel ring on the casting of a rotary cylinder
A rotary kiln construction wherein the kiln cylinder has an annular bearing ring for supporting the kiln in rotation with spacer plates located between the ring and the outer surface of the...
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4459921 |
Method and apparatus for burning inerts, particularly flotation addles middlings, clarification ponds and/or domestic refuse as a firing material in a grate firing
Inerts, particularly flotation addles and/or middlings are burned as a fire material in a grate firing and form a solid slag which is mechanically comminuted during the firing process. Comminution...
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4451232 |
Nozzle block for rotary kilns
In order to reduce the wear and to facilitate the replacement, a nozzle block comprises a mounting plate which is connected to the kiln shell, a nozzle tube which extends in the mounting tube and...
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4443186 |
Solar heated rotary kiln
A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for...
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4437835 |
Method of and apparatus for measuring the rate at which gases are blown into a rotary kiln
Gases are blown into the kiln through its shell by means of shell pipes or nozzle blocks. The rates at which gases actually enter the kiln are ascertained in that the pressure in each supply duct...
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4431405 |
Gas pollution control apparatus and method and wood drying system employing same
Pollution control apparatus and method are disclosed in which hot exhaust gas containing pollutants including solid particles and hydrocarbon vapors is treated by transmitting such exhaust gas...
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4403952 |
Apparatus for driving a rotary drum, such as a rotary kiln
A substantially horizontal rotating drum mounted on roller pairs which drum is driven via some of the rollers, drive rollers, by means of a hydrostatic motor on each drive roller. In order to avoid...
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4400153 |
Indirectly heated rotary calciner having weighted cylindrical extensions
An indirectly heated rotary calciner or dryer for high temperature operation, whereby it is important to reduce cylinder stress to achieve a reasonable life expectancy of the heated section of a...
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4389252 |
Plant for manufacturing cement clinker
A plant for manufacturing cement clinker from cement raw material includes a preheater first stage separated by a wall into a first chamber and a second chamber. Only raw material is passed through...
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4353687 |
Rotary kiln
A rotary kiln having a plurality of outlets for passage of material from within the kiln to associated cooler tubes mounted in use in planetary fashion around the outlet end of the kiln. Each kiln...
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4345896 |
Methods and apparatus for calcining carbonaceous material
The rate of calcining carbonaceous material in a rotary kiln is increased by introducing oxygen into the inlet of air fans mounted on the kiln. The introduction of oxygen is effected during a...
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4344596 |
Adjustable roller support for a rotary drum
A rotary kiln having a live ring is supported by a pair of rollers on shafts. The ends of each shaft are supported by bearings carried at the ends of a weigh beam having a rocking bearing so that...
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4339999 |
Combination refuse pyrolysis and moisture reduction apparatus
An improved method and apparatus for pyrolyzing waste materials and recovering useful chemical and energy rich materials therefrom. The apparatus of the invention comprises a specially designed,...
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4320586 |
Rotary drum
A rotary drum comprising a bearing ring loosely arranged on the drum shell and spacer plates arranged between the ring and the shell, a pair of elements for axially holding a spacer plate in...
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4317291 |
Rotatable drum drive
A device for treating solid and/or liquid materials comprises a drum driven for rotation about a horizontal axis by means of an endless chain. An expensive toothed rim surrounding the drum is...
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4300292 |
Heated mill drive system
A rotatable drum apparatus for use with a drying kiln or a dry grinding mill has a large gear wheel secured to the periphery of the drum, the drum being heated. In order to minimize the generation...
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4288215 |
Method and apparatus for preheating a rotatable fluidizable bed
A method for preheating a rotatable fluidizable bed (106) comprises rotating the bed chamber (112) slowly to cause the particles (114) to slowly tumble and mix. During tumbling, one or more burners...
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4265031 |
Rotary drum mounted by means of running rings
A rotary drum for the heat treatment of bulk goods, with the drum being mounted by means of thrust rings. Wedges are arranged on the outer periphery of the shell of the rotary drum, the wedges...
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4260372 |
Rotary tube
In rotary tubes (1), an insert (4) which expands under the influence of heat can be moved in the radical direction in a cold outer casing (3) by means of an end plate (19) but is fixed in the axial...
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4258583 |
Drive mechanism for rotary drum
A drive mechanism for a rotary drum having a toothed ring which is disposed on the outer periphery thereof with a clearance in relation to the drum and which meshes with a drive pinion, the toothed...
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4249890 |
Production of heated bituminous mixes
A process for the production of heated aggregate mix, such as bituminous mix, and a reactor for carrying out the process. In one aspect, the process entails the control of gas flow through a...
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4236465 |
Material level checking apparatus for use in a rotary incinerating furnace
A freely oscillating moving element (12-14-16), according to a radial axis with respect to the furnace wall (1) and having an inner appendix (12) deviated from the axis and with an outer...
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4229138 |
Cable tension roller
A cable suspension system for a rotary drum is disclosed which includes cable tension adjustment features providing dynamic load equalization, traction control and variable load distribution. The...
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