MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Calcium carbide mud, Bainijian City, Lanjie dust removal and desulfurization equipment factory
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Recycling and utilization of calcium carbide slag ScienceDirect
2022年5月1日 For the chloralkali industry, CCS can regenerate massive CaO through purification, molding, calcination Thus, CCS can be used as raw material for CaC2 2014年5月1日 Calcium carbide furnace offgas can be recycled by dust removal and purification The content of dust decreases significantly from 150,000 to 20 mg/m 3 by dedusting The Dust removal and purification of calcium carbide furnace offgas2014年5月1日 Aiming to make full use of three kinds of solid wastes from calcium carbide industry, this paper first investigated elements and mineral compounds of them through Dust removal and purification of calcium carbide furnace offgas2022年7月14日 The test results show that carbide slag and limestone have almost the same desulfurization effect The kinetics of carbide slag desulfurization process conforms to pseudo Desulphurization mechanism and engineering practice of carbide
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Treating waste with waste: Facile KHCO3modified calcium carbide
2023年11月1日 A recycling strategy for solid waste (calcium carbide slag) is provided • KHCO 3modified calcium carbide slag can simultaneously remove NO and SO 2 • Synergistic effect 2019年5月23日 Carbide slag (acetylene sludge) is the industrial residue, which is discharged when the hydrolysis of calcium carbide is undertaken to prepare acetylene The slag mainly Comprehensive Utilization of Carbide Slag SpringerLink2019年11月27日 This paper investigates the characteristics of solid wastes in calcium carbide factory by ICP, XRD and TG–FTIR, aiming to find an available utilization process of solid Fundamental characteristics of solid wastes from calcium carbide The huge production capacity of calcium carbide is accompanied by a large number of solid waste carbide slag Due to the immature treatment technology of carbide slag, a large number of Resource utilization of solid waste carbide slag: a brief review of
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Evaluation of calcium carbide residue and fly ash as sustainable
2024年1月5日 This study presents an indepth evaluation of calcium carbide residue and coal fly ash as alternative binders The assessment of raw materials emphasized their chemical This study provides basic guidance for the diversified development of efficient resource utilization of carbide slag Diversified development of calcium carbide industry, resource utilization of Resource utilization of solid waste carbide slag: a brief review of 2009年5月21日 To recycle industrial wastes and reduce SO2 pollutant emission in coal combustion, the mineralogical compositions, porosity structures, surface morphologies, and desulfurization properties of Physicochemical Characterizations and Desulfurization Properties Calcium carbide in a dry state is noncombustible Dusts of calcium carbide are classified as nuisance dusts and do not constitute a fire or explosion hazard except in the presence of moisture or at temperatures in excess of 1,000°C Calcium carbide will react with ANY form of CALCIUM CARBIDE HOT METAL DESULFURIZATION GRADE
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Summary of research progress on industrial flue gas desulfurization
2022年1月15日 In the industrial production of China, the processing of phosphate rock, volcanic eruptions, kerosene combustion and aluminum smelting will lead to flue gas emissions containing a large amount of SO 2SO 2 is a highly irritating gas Because SO 2 is freely soluble in water and enters the respiratory tract, it can generate corrosive sulfurous acid, sulfuric acid, and sulfate 2014年5月1日 Calcium carbide is a basic raw material for producing acetylene gas, using the following reaction [2]: CaC 2 + 2 H 2 O → C 2 H 2 + Ca (OH) 2 Calcium carbide is manufactured from lime (CaO) and carbonaceous material (petroleum coke or metallurgical coke) in a electric arc furnace at 1800–2200 °C, according to the following equation [3]: CaO + 3 C 1800 – 2200 Dust removal and purification of calcium carbide furnace offgas2022年3月21日 In this study, we used a vacuum centrifugal suction filtration technology to develop ceramic fiber filter tubes with a high strength and low pressure drop The V, Mo nanocatalyst slurry with metatitanic acid as the carrier precursor was implanted into a ceramic fiber filter tube By injecting NaHCO3 upstream, the desulfurization, denitrification, and dust Experimental Study on the Desulfurization, Denitration, and Dust 2019年3月30日 equipment has been difficult to meet the desulfurization requirements, and the total dust of flue gas after desulfurization exceeds the standard (3) Dualalkali flue gas desulfurization technology(PDF) Progress of Desulfurization and Denitration Technology of
Desulphurization mechanism and engineering practice of carbide
2022年7月14日 In the formula, η SO2 is SO 2 removal efficiency; C in is that concentration of SO 2 at the gas inlet, ppm; C out is the SO 2 concentration at the gas outlet, ppm The properties of carbide slag before and after the experiment were characterized and analyzed The equipment and test conditions were as follows: Xray fluorescence spectrometer (XRF, PANalytical Axios) Carbide slag (CS) is the main byproduct of acetylene production by calcium carbide With the rapid development of polyvinyl chloride (PVC) industry, the output of calcium carbide slag increases sharply When 1 ton PVC is produced, about 15 ~ 19 tons of calcium carbide slag is produced (Yang et al 2014) In 2013, the annual output of carbideDesulphurization mechanism and engineering practice of carbide 2023年11月1日 The simultaneous removal of nitric oxide (NO) and sulfur dioxide (SO 2) in a costeffective and environmentally friendly method is a major challenge in the field of industrial tail gas purificationIn this study, the solid waste calcium carbide slag (CS) was modified by potassium bicarbonate (KHCO 3) to achieve simultaneous removal of NO and SO 2 under low Treating waste with waste: Facile KHCO3modified calcium carbide This is due to the fact that unlike the other materials, calcium carbide produces CO gas which uniformly distributes and mixes the carbide while foaming the slag; does not require a balancing lime addition as do siliconbased additives (in fact every pound of carbide adds about one pound of lime); reacts exothermically (producing heat) to not chill the slag; and under typical Calcium Carbide Applications Carbide Industries LLC
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Fundamental characteristics of solid wastes from calcium carbide
2019年11月27日 Aiming to make full use of three kinds of solid wastes from calcium carbide industry, this paper first investigated elements and mineral compounds of them through inductively coupled plasma and Xray diffraction (XRD) The three solid waste samples, removed dust (RD), coke dust (CD) and purified dust (PD), have higher Ca/S molar ratios than 摘要： Pollutants discharge from coal combustion is one of the main causes of smog and haze Many countries focus on research and development of clean combustion, waste heat utilization and removal of pollutants (eg Dust, NOx and SOx) and other key technology and equipment considering the whole process of coalfired industrial boiler emissions and energy efficiencyProgress on Dust Removal, Denitrification and Desulfurization 2022年10月18日 The commonly used calcium desulfurizers have low desulfurization efficiency NaHCO3 desulfurizers can meet the requirements of desulfurization efficiency, but the high price and the difficulty in handling desulfurization products make dry flue desulfurization technology quite difficult to realize the largescale application Preliminary research found a new calcium Study on the desulfurization performance of calciumbased Calcium oxide PNEC 037 mg/l aquatic organisms freshwater shortterm (single instance) Calcium oxide PNEC 024 mg/l aquatic organisms marine water shortterm (single instance) Calcium oxide PNEC 227 mg/l aquatic organisms sewage treatment plant (STP) shortterm (single instance) Calcium oxide PNEC 817 Safety Data Sheet: Calcium carbide
Mechanical and Microscopic Properties of Coppercontaminated
Solidified with Calcium Carbide Residue, Metakaolin, and Desulfurization Gypsum under Freezethaw Cycles Qiang Wang a,b, Dandan Ge a, Guojun Cai c, Man Li d desulfurization gypsum was used to solidify and stabilize coppercontaminated soil subjected to freezethaw (FT) cycles The unconfined compressive strength 2024年2月12日 In this paper, TiO2 catalysts doped with different Fe contents (FeTiO2 catalysts) were prepared by coprecipitation method and the Fe loading capacity was optimized, and then the integrated Experimental study on integrated desulfurization and Nature2023年6月15日 Coalfired power generation is an important approach to supply energy [1]And Coalfired power stations supply over 70 % of the electricity in China [2]However, large amounts of pollutants (eg, particulate matter (PM), nitrogen oxides (NO x), and sulfur oxides (SO x)) are generated by combustion in coalfired boilersThus, flue gas purification systems are installed Integrated technology for dust removal and denitration of high 2021年3月1日 Efficient Coordinated Dust Removal Technology and Economic Analysis of Desulfurization System Under UltraLow Emission Situation(PDF) Efficient Coordinated Dust Removal Technology and
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Calcium Carbide an overview ScienceDirect Topics
Calcium carbide has the nominal formula of CaC 2 and the molecular weight of 640992 g/mol The pure material is colorless, but most samples have a color ranging from black to grayishwhite, depending on the grade Its density is 222 g/cc and it melts at 2160 °C with a boiling point (under an inert atmosphere) of 2300 °C, where it decomposesIts main use industrially is in the 2022年7月11日 Desulfurization techniques process and future challenges for commercial of crude oil products: Review(PDF) Desulfurization techniques process and future challenges Monitoring the desulfurization and dust removal system to control the amount of absorbent Continuous online monitoring system for flue gas would be installed around the island of desulfurization and dust removal, the desulfurization efficiency can be got by testing the concentration of SO 2 in flue gas at inletLQLUFXODWLQJ)OXLGL]HG%HG%RLOHUV IOPscience2017年3月22日 Calcium carbide For the reaction of sulphur with calcium carbide (reaction (4)) it is assumed that the formed carbon does not dissolve in already carbonsaturated HM Citation 16 When CaC 2 is used in steel Sulphur removal in ironmaking and oxygen
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Recycling and utilization of calcium carbide slag ScienceDirect
2022年5月1日 Coal is the dominant fuel in China to provide primary energy, and 70% of polyvinyl chloride is produced from coalbased CaC 2CaC 2 reacts with water to produce acetylene and calcium carbide slag (CCS) as a solid waste for polyvinyl chloride production Approximate 40 million tons of dry CCS are generated annually in China, among which only a 2022年11月1日 A novel binder comprising calcium carbide residue, metakaolin, and desulfurization gypsum was used to solidify and stabilize coppercontaminated soil subjected to freezethaw (FT) cyclesMechanical and Microscopic Properties of Coppercontaminated 2022年12月27日 This study explores the synergistic removal effect of various schemes based on demisters on boiler flue gas dust on a pilotscale experimental bench The results show that the dust removal efficiency is 2843–5130% when demisters are put into operation alone; the larger the inlet dust concentration of demisters is, the higher the dust removal efficiency will Pilot study on demisterbased dust removal methods forCurrently, desulfurization technologies can be categorized into three main types: wet flue gas desulfurization (FGD) [11], [12], [13], semidry desulfurization [14] and dry desulfurization [15]Wet flue gas desulfurization is widely employed in largescale desulfurization processes due to its high efficiency and low energy consumption [16]However, it poses a significant environmental Recent advances in process and materials for dry desulfurization
Desulphurization mechanism and engineering practice of carbide
2022年7月14日 The kinetics of carbide slag desulfurization process conforms to pseudofirstorder kinetics, and the sulfur content of calcium carbide slag reaches to 1000 mgSO2g1equipment investment and operating costs The ceramic catalytic filter tubes (CCFTs) are made of dust removal filter tubes combined with denitration catalysts The ceramic fiber filter tube can realize the integrated removal of hightemperature particulate matter, NO x, and SO x The main structure of the CCFT is shown in Figure 1 The Experimental Study on the Desulfurization, Denitration, and Dust Calcium carbide 09 07 SECTION 1: Identification of the substance/mixture and of the company/undertaking 11 Product identifier Identification of the substance Calcium carbide Registration number (REACH) 01180000 EC number 2008483 Index number in CLP Annex VI 006004009 CAS number 75207Safety Data Sheet: Calcium carbide Radtke Messtechnik2023年7月29日 The semidry flue gas desulfurization ash (SFGDA) is an industrial waste generated by the semidry desulfurization process, and its resources have been continuously attracted attention Through the method of heat decomposition, the SFGDA decomposed into CaO and SO2 has emerged as a prominent research topic This paper summarizes various of Advances on resource utilization of semidry desulfurization ash
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Treating waste with waste: Facile KHCO3modified calcium carbide
2023年11月1日 Manganese cobalt oxide catalysts prepared by the lowtemperature solid phase reaction were modified by potassiumprecursor promoters and used for the oxidation of nitric oxide at low temperature2016年7月25日 In both cases, the spectrograms were rather similar, presen ogous absorption bands The wide bands around 3624 cm −1 and 3427 cm −1 are with the vibration of OHgroups in water, whereas the Characteristics of hydration and hardening of red mud of Bayer 2014年9月25日 L ime and calcium carbide are two of the most commonly used agents for hot metal desulfurization It is important to have a good understanding of their kinetics and reaction mechanisms to optimize material utilization Although a number of studies[1–11] have been carried out, it is still difficult to compare the efficiencies of desulfurization using CaO and CaC 2Kinetic Study on Desulfurization of Hot Metal Using CaO and CaCCalcium Carbide (CaC2) Calcium Carbide is a colorless and odorless solid Calcium Carbide is the chemical name of CaC2 For an indepth knowledge on the uses, physical and chemical properties, structure of Calcium Carbide (CaC2) visit BYJU’SCalcium Carbide Structure, Properties, and Uses of CaC2
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Calcination and desulfurization characteristics of calcium
2022年12月15日 The calcium carbonate powder used in this experiment is light calcium carbonate manufactured by Henan Yixiang New Material Co, Ltd The process begins with the calcination of limestone into CaO, followed by the addition of water to digest it and form calcium hydroxide, and finally the addition of CO 2 to produce calcium carbonate It was created 2022年5月1日 Request PDF Recycling and utilization of calcium carbide slag current status and new opportunities Coal is the dominant fuel in China to provide primary energy, and 70% of polyvinyl chloride Recycling and utilization of calcium carbide slag ResearchGate2024年1月12日 The extensive accumulation of phosphorus slag (PS) not only occupies land but also pollutes the environment In the present study, calcium carbide slag (CS) and desulfurization gypsum (DG) were used to synergistically activate PS, and metakaolin (MK) was added to provide additional Al 2 O 3 for the cementitious systemThe setting time, pH development, Preparation and characterization of quaternary clinkerfree The results show that the dust removal eciency is 2843–5130% when demisters are put into operation alone; the larger the inlet dust concentration of demisters is, the higher the dust removal eciency will be; but it still cannot reach the 10 mg/Nm 3 ultralow emission standard The dust removal eciency is 9313% when wet electrostaticPilot study on demisterbased dust removal methods for
Hot‐Metal Desulfurization Using Calcium Carbide and Calcium
2023年10月28日 Request PDF Hot‐Metal Desulfurization Using Calcium Carbide and Calcium Oxide in Transfer Ladle: A Computational Fluid Dynamics Investigation This study presents a 3D transient Computational Hot metal desulfurization is commonly conducted in a ladle or a torpedo car, 1 using a desulfurization reagent that is either injected into the metal bath or added on top of it 2 From the thermodynamic point of view, the fundamental requirement for the desulfurization reagent is to be able to donate electrons and form a new sulfidebinding phase 3 Typical reagents used in the A Review of Modeling Hot Metal Desulfurization