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@article{osti_7233778, title = {Rotary kiln seal}, author = {Drexler, R L}, abstractNote = {This patent describes a rotary seal apparatus to provide a positive seal between a rotating member and a non-rotating member. It comprises: a rotating disc plate attached to the rotating member; a nonrotating housing with an interior and an exterior surface, a plurality of …


US6309210B1 - Kiln universal oxygen enrichment - Google Patents A kiln is provided with oxidant injection locations upstream of air blowers which …


Magnesium rotary kiln is mainly compose of driving device, supporting roller, catching roller, cylinder, kiln inlet, kiln outlet and sealing device. 1. 2-3 supporting points can guarantee the contacting surface between supporting roller and tyre is …


Rotary kilns work by processing material in a rotating drum at high temperatures for a specified retention time to cause a physical change or chemical reaction in the material being processed. The kiln is set at a slight slope to assist in moving material through the drum. Direct-fired kilns utilize direct contact between the material and ...


As shown in the FIGURE, the rotary kiln 10 comprises a furnace core tube 12 and a heating furnace 14 surrounding a certain part of the furnace core tube 12 in the axial direction, as a basic configuration. An inlet hood 22 is provided at one end 12a side of the furnace core tube 12, and an outlet hood 24 is provided on the other end 12b side.


The object of the invention is to provide a rotary kiln inlet which is distinguished by a particularly resistant construction of the material inlet trough and the base of the trough, and in which in particular a relatively simple installation (and thus also removal) of the trough base should be possible. SUMMARY OF THE INVENTION


Patent Application Drexler, R. A rotary seal used to prevent the escape of contaminants from a rotating kiln incinerator. The rotating seal combines a rotating disc plate which is attached to the rotating kiln shell and four sets of non-rotating carbon seal bars housed in a primary and secondary housing and which rub on the sides of the disc.


United States Patent 5371583 . Abstract: Light projectors are located outside of a kiln inlet and at positions below the axis of a roller array for generating optical signals in the lengthwise direction. Light receptors are located outside of a kiln outlet and at positions below the axis of a roller array for independently receiving the optical ...


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KILN SEAL - TREADWELL CORP,US

Inlet and outlet housings 18 and 18' enclose respective feed and outlet transport mechanisms (not shown) for supplying the kiln with raw material and for withdrawing processed material therefrom. Seals 19 constructed according to the present invention are located about both the inlet and outlet of the kiln, the construction and function of ...


Justia Patents US Patent Application for DUAL PATH KILN AND METHOD OF OPERATING A DUAL PATH KILN TO CONTINUOUSLY DRY LUMBER Patent Application (Application #20190234686) ... The fan 40 is preferably …


United States Patent 5871348 ... Clinker cooler 20 is arranged beneath kiln discharge 10, and receives hot clinker 12 and fines 14 from a kiln (unshown) at a cooler inlet portion 16. The clinker 12 and fines 14 which enter clinker cooler 20 are supported above a cooler inlet grate 22. The cooler inlet grate 22 slopes downwardly from high end 17 ...


WO-2013167477-A1 chemical patent summary.


UNlTED STATES PATENTS 2,352,738 2 Claims, 7 Drawing Figures APPARATUS FOR BURNING MATERIALS OF CEMENT AND THE LIKE The so-called suspension preheater type rotary kilns have been widely used for...


Re: kiln inlet material flushing. What we have observed two main reasons for material leakage from inlet seal. Either your inlet trough plates or tounge plates are wear OR inlet seal pneumetic jacks are not working properly. If so, try to run kiln with maximum possible speed or you will face more flushing with low speed in such condition.


A clinker inlet distribution grate for feeding a conveyor grate with clinker, previously discharged from a kiln onto the clinker inlet distribution grate wherein the clinker inlet distribution grate comprises at least a chute with at least two grate elements being arranged one besides the other providing a chute enables to easily remove clinker agglomerations, so called …


Re: Kiln Inlet Coating. Usually coatings or buildups in this area are due to an elevated sulphur cycle caused by either poor combustion in the main flame, or use of high SO3 fuels such as petcoke. The key is to ensure enough O2 at the kiln inlet to control excessive SO3 recirculation. High sulphur levels in the raw materials can also be a cause.


In the cement clinker facility shown in European patent stage EP-B-0 497 937 issued May 10, 1995 to A. Wooten et al, the rotary kiln off-gas riser is supplied with fuel and preheated raw meal. ... The fuel inlet to the rotary kiln off-gas riser is burned in richer than stoichiometric fashion, that is, with a deficiency of oxygen, ...


Patents: Publication Country: KR. Inventor: PARK Duk Ja. Year: 2013. ... the burner installed in the inlet in which the bamboo charcoal of the rotary kiln furnace; the rotary kiln furnace which is rotatable is supported by the support roller is loaded with the blower and includes the carbon monoxide to the rotary kiln furnace inner portion is ...


Material Spillage from Kiln Inlet. Dear Experts, What can be the reasons of material spillage from kiln inlet seal? Our kiln many times even running under capacity start spilling material from the seal. The system has bypass circuit which is running always but still we fce this problem. Kiln is 5 Stage, ILC, single string.


COOLING ARRANGEMENT FOR ROTARY KILN ABSTRACT OF DISCLOSURE An arrangement for mounting a cooling cowl on the discharge end of a rotary kiln which allows for radial and axial differential expansion between the kiln shell and the cooling cowl. The cooling cowl is mounted on the kiln contiguous the discharge end of the kiln, with the cowl being …


field of the invention this invention relates to that kind of rotary kiln which has a number of cylindrical-cooler tubes mounted in planetary fashion around the outlet end of the kiln with their...


The inlet chamber is the connection between rotary kiln and preheater (in general) or the calciner (specifically). This part of the plant is designed to ensure a possibly dust-free transfer of raw material from the static preheater to the dynamic kiln, and also guides the hot kiln exhaust gases into the calciner.


OSTI.GOV Patent: Kiln for waste disposal. Kiln for waste disposal. Full Record; ... for internal combustion engines utilizing a fuel pump and an air supply and including a base housing having a fuel inlet and a fuel outlet with a regulator valve opening interposed therebetween, and a closure housing secured to the base housing. ...


OSTI.GOV Patent Application: A method and system including a double rotary kiln pyrolysis or gasification of waste material


United States Patent 4767323 ... 17. A method of retarding the formation of a solid residue ring on the inner wall of a rotary calcining lime kiln having an inlet end for limestone and an outlet end for lime formed therein, during the calcination of limestone to form lime, wherein heat is applied to said kiln by combustion of coal, which ...


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Rotary Kiln – IspatGuru

The first proposal for using a furnace defined in this way is perhaps that found in an English patent of 1865. The first rotary kiln was manufactured around 1885, but not until 1895 was the rotary type considered a success. ... Kiln inlet head – The Kiln inlet head has exhaust gas system which is typically much larger when working with a ...


Kiln inlet temperature will start to increase, but this is undesirable, since this temperature should be held within 20C. Reducing the I.D. fan speed will help reducing this increase in temperature of the kiln inlet. Reducing kiln draft resulting from I.D. fan speed decrease, will make the oxygen content less in the kiln exit gas and there will ...


United States Patent 4101268 ... having a number of satellite cooling tubes distributed uniformly round the rotary kiln periphery at the exit end of the kiln, the inlet ends of these tubes being connected by short inlet pipes to the interior of the rotary kiln, and each tube being supported on the rotary kiln casing by two support bearings ...


50 The kiln has an inclined barrel 1, and an inlet chamber 2 with an associated disentrainment section 10. The inlet chamber connect wits h the upper end ofthe barrel 1 and is provided with an inlet jet 5 for gaseous reactants. At the lower end 55 ofthe barrel 1 is a discharge hopper 3 through which extends another reactant inlet 6. A further


US4457520A - Device for sealing the gap between a rotary kiln and an inlet housing - Google Patents A device for sealing the gap between the inlet end …


Patents for F27B 7 - Rotary-drum furnaces, i.e. horizontal or slightly inclined (5,396) 03/2015: ... CN104251619A One kind of rotary kiln inlet device :


the calciner is placed in the riser duct from kiln inlet to bottom stage cyclone and combustion takes place in a mixture of kiln exhaust gas and tertiary air. 2. FLS Separate-Line Downdraft (SLC-D) Calciner is similar to Off-Line Calciner in your definition. 3. FLS Separate-Line calciner (SLC) is similar to Separate-Line Calciner in


United States Patent 6419481 . Abstract: The present invention relates to a cooler (2) for a rotary drum kiln (1). The cooler ... It is supported to the kiln shell stationary at its inlet end and by way of motion joint at its discharge end. The object of the cooler is the cooling of hot material passing from the kiln, such as burnt lime ...


The Kiln Inlet Seal provides an interface between the kiln and preheater, while the Kiln Outlet Seal creates an interface between the kiln and the cooler. Efficient seal against the outer air casing Both of these highly efficient kiln seals use carbon graphite to create a staggered arrangement of overlapping blocks, held in place by a wire rope ...


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Cement kiln - Wikipedia

Cement kilns are used for the pyroprocessing stage of manufacture of portland and other types of hydraulic cement, in which calcium carbonate reacts with silica-bearing minerals to form a mixture of calcium silicates.Over a billion tonnes of cement are made per year, and cement kilns are the heart of this production process: their capacity usually defines the capacity of the cement plant.


Patent Number(s): 5106105 Assignee: ... of destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being ...


We claim: 1. A rotary kiln with planetary coolers for material discharged from the kiln, comprising a plurality of cooling tubes for contacting the material with incoming air, which are arranged in planetary fashion about the periphery of the kiln, and an air-inlet tube of elliptical cross-section extending from the periphery of the kiln at one end of each of said cooling …


A rotary kiln has a tubular kiln body 2 being rotated and stationary hoods 3 at either end. A sealing structure is provided arranged between the kiln body and the stationary hood. The sealing structure comprises a first annular seal ring 72 formed on the outer circumference of the of the kiln body, and a second seal ring 71 arranged outside and spaced apart from the first seal ring …