RU2593396 (C1)

Method of obtaining lime

(22) 17.03.2015

(43) 10.08.2016

(57) Field: technological processes. Substance: invention relates to production of lime for various purposes, including production of construction materials, and is recommended for enterprises with capacity from 10 to 300 thousand t per year. Method of obtaining lime involves complete preliminary grinding of all limestone to particle size of less than 100 mcr, oil coke in charge composition with size of not more than 0.6 mm, and size of used particles of limestone underlayer is 15-20 mm, then charge granules with diameter 10-12 mm are used with acceleration of their granulation by inclusion of limestone underlayer, extracted from product, into limestone, supplied to grinding, then after ignition of charge air supplied into layer of charge is diluted with gas fuel in conditions providing low coefficient of air flow rate in gas-air mixture from 5 to 3; in process of burning mixture in reactor is subjected to vibration by means of built-in vibrator. Effect: ­higher chemical activity, improved technical and consumer properties of lime, reduced length of technological production cycles using lime as binder.1 cl, 1tbl

(73) Federalnoe gosudarstvennoe avtonomnoe obrazovatelnoe uchrezhdenie vysshego obrazovaniya “Uralskij federalnyj universitet imeni pervogo Prezidenta Rossii B.N. ltsina” (RU)

Related articles:

Issue 4/2019 RU 2 677 724 (C1)

Method of obtaining lime

(22) 06.04.2018(45) 21.01.2019(57) Field: construction. Substance: invention relates to the construction industry and can be used in the production of lime by burning limestone in special kilns....

more
Issue 11/2018 KAZAN STATE UNIVERSITY OF ARCHITECTURE AND ENGINEERING

Calcined mixture of clay and limestone as a complex additive for blended Portland cement

Today, the main direction in the cement industry for saving both resources and energy is the development of low-clinker or blended cements using one-component and complex mineral additives. Promising...

more
Issue 10/2013

Use of marginal grade limestone for cement manufacture in India

In India, almost all the available cement grade limestone reserves suitable for the production of cement have been acquired under mineral...

more
Issue 8/2021 MAERZ OFENBAU AG

New PFR lime kiln process with blast furnace gas and oxygen

Production of high reactive lime is now possible with inexpensive blast furnace gas. A new and innovative Parallel Flow Regenerative lime kiln process using 100% blast furnace gas achieves the same...

more