optimization of calcium carbide slag drying system in cement

Application technology of calcium carbide slag: a case ...

May 06, 2020  The process equipment optimization comprises the following modules, known as optimization of wet calcium carbide slag feeding system and drying system, improvement of batching and grinding system for calcium carbide slag, and the optimization of clinker calcination system. A detailed description for the three modules will be shown as the following.

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Study on Preparation and Performance of Calcium Carbide ...

Dec 05, 2020  Calcium carbide slag, silica micro-powder and cement were ground with a planetary ball mill, respectively. The results presented in Figs. 1, 2 and 3 suggest that the particle size distribution of raw materials. The raw materials dried in a vacuum drying oven at 40 ℃ for 48 h and then sealed with a sealing bag for later use.

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Using Calcium Carbide Slag as One of Calcium-Containing ...

Calcium carbide Slag is from CaC2 hydrolysis reaction and will do harm to land and make pollution. Calcium carbide slag can be a substitute for limestone to produce clinker with a high portion of CaO as an excellent calcium raw material. As a kind of industrial wastes, the properties of calcium carbide slag differentiate from that of natural limestone.

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Study of using Calcium Carbide Slag to Prepare Calcium ...

Study of using Calcium Carbide Slag to Prepare Calcium Oxide Briquettes by Molding and Calcination Processes through Taguchi Approach 182 Ç.Ü. Müh. Mim. Fak. Dergisi, 33(1), Mart 2018 2.3. Experimental Design The aim of this study was to The number of experiments conducted to obtain CaO briquettes with a high strength from CCS was

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(PDF) Effect of Calcium Carbide Wastes as Admixture in Mortar

This paper presents the results of an experimental study on the use of Calcium Carbide Wastes (CCW) as an admixture in a mortar. A mortar of ratio l:3 (cement to fine aggregate) at a constant ...

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Properties of Chemically Combusted Calcium Carbide Residue ...

Calcium carbide residue (CCR) is a waste by-product from acetylene gas production. The main component of CCR is Ca(OH)2, which can react with siliceous materials through pozzolanic reactions, resulting in a product similar to those obtained from the cement hydration process. Thus, it is possible to use CCR as a substitute for Portland cement in concrete.

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Volgograd cement production line processing ferrosilicon ...

Optimization of calcium carbide slag drying system in cement. lvssn group secondline 3000t d production line was put into production in December 2011 Calcium carbide slag produced by chemical plant dry production of acetylene was used as limestone raw material and the slag had less moisture about 6 which was directly used for raw material batching after drying in the drying the process of ...

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Materials Free Full-Text Effect of Portland Cement ...

Carbide slag is industrial residue of the hydrolysis of calcium carbide to produce acetylene (C 2 H 2), which is a raw material for the production of polyvinyl chloride (PVC) and some other industrial products [23,24], presented in Equation (2). About 1.5–1.9 t of calcium carbide slag are discharged in the production of 1.0 t of PVC .

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Evaluation and mitigation of cement CO 2 emissions ...

Jun 24, 2018  Carbide slag is the waste residue from the production of calcium carbide, whereby 1 t of calcium carbide can generate 1.2 t of carbide slag. Statistics from the calcium carbide industry reveal the carbide slag output to be greater than 10 Mt/a in China, and the cumulative amount of carbide slag has exceeded 100 Mt in recent years.

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Modeling and Optimization of Cement Raw Materials Blending ...

This paper focuses on modelling and solving the ingredient ratio optimization problem in cement raw material blending process. A general nonlinear time-varying (G-NLTV) model is established for cement raw material blending process via considering chemical composition, feed flow fluctuation, and various craft and production constraints. Different objective functions are presented to acquire ...

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Application of bacterial spores coated by a green ...

Oct 01, 2020  The bacterial spore powder used was a mineralized Bacillus cereus CS1 isolated in calcium carbide slag. The carbide slag that is not involved in hydration can provide a primitive environment for bacterial spores, further protecting bacterial spores against the severe environment in concrete and extending the service life of the concrete, which ...

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Orthogonal Experimental Studies on Preparation of Mine ...

Carbide slag purchased from Shandong Linzi Acetylene Gas Factory was calcined for 30 min at 1000°C. It was characterised by the calcium oxide mass fraction of 77.5%, calcium hydroxide mass fraction of 18.5%, density of 2.64 g/cm 3, and specific surface area of 419 m 2 /kg. The chemical composition of the utilised carbide slag is listed in Table 1.

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(PDF) Carbide lime and industrial hydrated lime ...

The remaining fraction of the calcium carbide is made up of 1-10% of calcium carbonate, 1-3% of carbon and silicates. Calcium carbide dissolves in water to produce calcium hydroxide and acetylene ...

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Evaluation of Dioxins and Dioxin-Like Compounds from a ...

Zhao et al. determined PCBs in stack gases produced by cement kilns co-processing chlor-alkali industry carbide slag, which contains large amounts of calcium compounds and can potentially be used ...

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一种基于电石渣的水泥联产工艺 Carbide slag-based cement co-production ...

【EN】1. a kind of cement joint production technique based on carbide slag, comprises the steps: The carbide slag that dry acetylene generation process is obtained, carries out electromagnetism except iron, send after being then dried using the remaining temperature of cement plant waste gas Entering CCS systems carries out COCircularly ...

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Performance of Extruded Particles from Calcium Hydroxide ...

Sep 30, 2011  The reversible reaction of CaO with CO2 can be used for CO2 capture. However, two challenging problems, i.e., loss-in-capacity and high attrition rate for CaO-based sorbents, must be solved before it can be practically applied. In this paper, sorbents with various CaO contents were prepared from calcium hydroxide and cement using a screw extruder and the physical and chemical properties of

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Optimum Blast Furnace Slag Composition for Hot Metal ...

Wet granulation, slag pelletizing and dry slag atomization technologies were compared to better understand the flexibility that each process has to treat a range of blast furnace compositions and produce by-product slag suitable for sale. Slag cement specifications are described and slag produced from European and North American blast furnaces ...

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B. Eco-materials

Typical External Insulation System Yao Li1, Xianzheng Gong1, Qinghua Zhang2, Chongqi ... The Research of Optimization for Blast Furnace Slag Dry Cooling Granulation Device Dazhan Sheng, Yali Wang, Ruiyun Wang ... Life Cycle Assessment of Beneficial Use of Calcium Carbide Sludge for Cement Production in China. Yu Liu Beijing University of Technology

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Introduction to the rotary kiln of lvssn group_cement ...

The rotary kiln consists of a tube made from steel plate, and lined with firebrick.The tube slopes slightly (1–4°) and slowly rotates on its axis at between 30 and 250 revolutions per hour. Rawmix is fed in at the upper end, and the rotation of the kiln causes it gradually to move downhill to the other end of the kiln.

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Evaluation and mitigation of cement CO 2 emissions ...

Jun 24, 2018  Carbide slag is the waste residue from the production of calcium carbide, whereby 1 t of calcium carbide can generate 1.2 t of carbide slag. Statistics from the calcium carbide industry reveal the carbide slag output to be greater than 10 Mt/a in China, and the cumulative amount of carbide slag has exceeded 100 Mt in recent years.

get price

Materials Free Full-Text Effect of Portland Cement ...

Carbide slag is industrial residue of the hydrolysis of calcium carbide to produce acetylene (C 2 H 2), which is a raw material for the production of polyvinyl chloride (PVC) and some other industrial products [23,24], presented in Equation (2). About 1.5–1.9 t of calcium carbide slag are discharged in the production of 1.0 t of PVC .

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Bugulma cement production line processing ferrosilicon ...

Optimization of calcium carbide slag drying system in cement. lvssn group secondline 3000t d production line was put into production in December 2011 Calcium carbide slag produced by chemical plant dry production of acetylene was used as limestone raw material and the slag had less moisture about 6 which was directly used for raw material batching after drying in the drying the process of ...

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calcium carbide grinding unit manufacturing process

11.4 Calcium Carbide Manufacturing. produce 1 megagram (Mg) (2,205 lb) of calcium carbide. The process for manufacturing calcium carbide is illustrated in Figure 11.4-1. Moisture is removed from coke in a coke dryer, while limestone is converted to lime in a lime kiln. Fines from coke drying and lime operations are removed and may be recycled.

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B. Eco-materials

Typical External Insulation System Yao Li1, Xianzheng Gong1, Qinghua Zhang2, Chongqi ... The Research of Optimization for Blast Furnace Slag Dry Cooling Granulation Device Dazhan Sheng, Yali Wang, Ruiyun Wang ... Life Cycle Assessment of Beneficial Use of Calcium Carbide Sludge for Cement Production in China. Yu Liu Beijing University of Technology

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Orthogonal Experimental Studies on Preparation of Mine ...

Carbide slag purchased from Shandong Linzi Acetylene Gas Factory was calcined for 30 min at 1000°C. It was characterised by the calcium oxide mass fraction of 77.5%, calcium hydroxide mass fraction of 18.5%, density of 2.64 g/cm 3, and specific surface area of 419 m 2 /kg. The chemical composition of the utilised carbide slag is listed in Table 1.

get price

一种基于电石渣的水泥联产工艺 Carbide slag-based cement co-production ...

【EN】1. a kind of cement joint production technique based on carbide slag, comprises the steps: The carbide slag that dry acetylene generation process is obtained, carries out electromagnetism except iron, send after being then dried using the remaining temperature of cement plant waste gas Entering CCS systems carries out COCircularly ...

get price

Performance of Extruded Particles from Calcium Hydroxide ...

Sep 30, 2011  The reversible reaction of CaO with CO2 can be used for CO2 capture. However, two challenging problems, i.e., loss-in-capacity and high attrition rate for CaO-based sorbents, must be solved before it can be practically applied. In this paper, sorbents with various CaO contents were prepared from calcium hydroxide and cement using a screw extruder and the physical and chemical properties of

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US20160168297A1 - Loop-Route Production Method and System ...

The present invention relates to a loop-route production method and system for polyvinyl chloride, and belongs to the intersecting fields of coal chemicals, polymer materials and chemical machinery. Limestone and carbon materials such as coal are reacted in an oxygen-enriched high temperature furnace to obtain calcium carbide and carbon monoxide, and then acetylene and carbon monoxide

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A Novel Formulation for the Compressive Strength of IBP ...

Apr 03, 2019  Ground-granulated blast-furnace slag (GGBS) as the binder was mixed by 4, 8, 12, 16, 20, 25, 30, 35, 40 and 50 percent of clayey soil dry weight. Additionally, six molar concentrations of alkali solution ( M ) of 4, 8, 10, 12, 14.5 and 15 were considered for each slag percentage, and alkali-to-binder ratios ( A / B ) of 0.45, 0.65 and 0.85 were ...

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Cement Building Materials The Artesia Companies

Cement is a finely ground, usually grey colored mineral powder. When mixed with water, cement acts as a glue to bind together the sand, gravel and crushed stone to form concrete, one of the most durable and widely used construction materials in the world. Cements used in construction are usually inorganic, often lime or calcium silicate based ...

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What is the use of a vertical roller mill to increase the ...

Vertical roller mill breaks through the bottleneck of low output, high energy consumption and high maintenance cost of ordinary mill. It has strong adaptability to high humidity, dry materials, hard to grind and easy to grind materials. It has a w...

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calcium carbide grinding unit manufacturing process

The process equipment optimization comprises the following modules known as optimization of wet calcium carbide slag feeding system and drying system improvement of batching and grinding system for calcium carbide slag and the optimization of clinker calcination system. A detailed description for the three modules will be shown as the following.

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(PDF) Metallurgical Furnaces andri kabarubun - Academia

These smelt- highly enriched air ing furnaces represent a modern approach of – A settling hearth with an area of intensive metal smelting under environmentally 120 – 160 m2 for collection of the droplets “clean” conditions. and separation of matte (metal) and slag – An off-take shaft for waste gas and flue dust. 4.1.

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