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Producing cement

Abstract

A process and apparatus are described for producing Portland cement in which pulverized shale is successively heated in a series of inclined rotary retorts having internal stirrers and oil gas outlets, which are connected to condensers. The partially treated shale is removed from the lowermost retort by a conveyor, then fed separately or conjointly into pipes and thence into a number of vertically disposed retorts. Each of these retorts may be fitted interiorly with vertical arranged conveyors which elevate the shale and discharge it over a lip, from whence it falls to the bottom of the retorts. The lower end of each casing is furnished with an adjustable discharge door through which the spent shale is fed to a hopper, thence into separate trucks. The oil gases generated in the retorts are exhausted through pipes to condensers. The spent shale is conveyed to a bin and mixed while hot with ground limestone. The admixed materials are then ground and fed to a rotary kiln which is fired by the incondensible gases derived from the oil gases obtained in the previous retorting of the shale. The calcined materials are then delivered from the rotary kiln to rotary coolers. The waste gases  More>>
Authors:
Publication Date:
Sep 12, 1923
Product Type:
Patent
Report Number:
AU 14300
Reference Number:
EDB-81-097454
Subject:
04 OIL SHALES AND TAR SANDS; PORTLAND CEMENT; PRODUCTION; SHALES; BY-PRODUCTS; AUSTRALIA; DESIGN; EQUIPMENT; HEATING; HYDROCARBONS; KILNS; LIMESTONE; RETORTS; TASMANIA; AUSTRALASIA; BUILDING MATERIALS; CARBONATE ROCKS; CEMENTS; CHEMICAL REACTORS; DISTILLATION EQUIPMENT; ISLANDS; MATERIALS; ORGANIC COMPOUNDS; ROCKS; SEDIMENTARY ROCKS; 040600* - Oil Shales & Tar Sands- Products & By-Products
OSTI ID:
6170154
Country of Origin:
Australia
Language:
English
Submitting Site:
TIC
Size:
Pages: v
Announcement Date:

Citation Formats

Stone, E G. Producing cement. Australia: N. p., 1923. Web.
Stone, E G. Producing cement. Australia.
Stone, E G. 1923. "Producing cement." Australia.
@misc{etde_6170154,
title = {Producing cement}
author = {Stone, E G}
abstractNote = {A process and apparatus are described for producing Portland cement in which pulverized shale is successively heated in a series of inclined rotary retorts having internal stirrers and oil gas outlets, which are connected to condensers. The partially treated shale is removed from the lowermost retort by a conveyor, then fed separately or conjointly into pipes and thence into a number of vertically disposed retorts. Each of these retorts may be fitted interiorly with vertical arranged conveyors which elevate the shale and discharge it over a lip, from whence it falls to the bottom of the retorts. The lower end of each casing is furnished with an adjustable discharge door through which the spent shale is fed to a hopper, thence into separate trucks. The oil gases generated in the retorts are exhausted through pipes to condensers. The spent shale is conveyed to a bin and mixed while hot with ground limestone. The admixed materials are then ground and fed to a rotary kiln which is fired by the incondensible gases derived from the oil gases obtained in the previous retorting of the shale. The calcined materials are then delivered from the rotary kiln to rotary coolers. The waste gases from the kiln are utilized for heating the retorts in which the ground shale is heated for the purpose of extracting therefrom the contained hydrocarbon oils and gases.}
place = {Australia}
year = {1923}
month = {Sep}
}