KR102149063 (B1)

CSA sub-materials for manufacturing CSA cement using waste by product

(22) 01.11.2019

(43) 28.08.2020

(57) The present invention relates to an auxiliary material for manufacturing CSA cement using waste by-products, and more particularly, as a waste sludge containing some or all of the components of CaO-Al2O3-SiO2-SO3-Fe2O3, which is a major component of CSA cement, silicon wafer sludge, desulfurization Waste by-products that are discarded while using fly ash and dyeing wastewater sludge, and by mixing at least one of waste lime and iron-making sludge as a moisture content control material and providing it as an auxiliary material for mixing with lime, the main raw material of CSA cement. In addition to solving environmental problems by the use of CSA, it is characterized by reducing the cost of raw materials for the production of CSA cement, and in particular, the cost of raw materials can be reduced because expensive Al-based raw materials can be used inexpensively and stably.

(71) Plus Env Co Ltd (KR)

x

Related articles:

Issue 5/2022 US 2022/0153642 A1

Wastewater treatment system and method for producing sludge for cement manufacturing

(22) 31.01.2022 (43) 19.05.2022 (57) A wastewater treatment system, including a wastewater phase-separation device, may be used to combine at least one primary treatment chemical and wastewater to...

more
Issue 5/2021 WO 2021/006155 A1

Sludge processing method and cement manufacturing system

(22) 01.07.2020 (43) 14.01.2021 (57) This cement manufacturing system comprises: a suspension pre-heater for pre-heating a cement raw material; a calcining furnace for calcining the pre-heated cement...

more
Issue 10/2019 WO 2019/142387 A1

Method for treating sludge and cement manufacturing system

(22) 27.08.2018 (43) 25.07.2019 (57) This method for treating sludge comprises: mixing dewatered sludge and cement raw material to make a mixture; drying the mixture with a dryer which brings the...

more
Issue 1/2021 EP 3 741 729 A1

Method for treating sludge and cement manufacturing system

(22) 27.08.2018 (43) 25.11.2020 (57) A sludge treatment method includes: preparing a mixture by mixing dehydrated sludge and cement raw meal; drying the mixture by a dryer that brings the mixture into...

more
Issue 3/2023 US 2023/0036356 A1

Integrated process for manufacturing hydraulically hardening building material

(22) 08.10.2020 (43) 02.02.2023 (57) A method for manufacturing hydraulically hardening build-ing materials, includes the steps of: providing concrete demolition waste with a maximum particle size of...

more