Ideal for slag processors and steel mills, this bucket handles severe molten slag (1200° and above) as if it were light material. From its cutting edge to spill guards, this bucket has a thick shell for extra strength and extra-thick end plates that absorb heat and eliminates the worry of distortion. Optional hardfacing, extended spill guards ...

 — 1. Introduction. Coal gasification generally refers to an incomplete reaction between various coal (coke) and oxygen-carrying gasification agents (O 2, H 2 O, CO 2), and finally produces a gas composed of CO, H 2, CO 2, CH 4, N 2, H 2 S, COS etc (Fan et al., 2019).Coal gasification technology is the core of clean and efficient conversion of …

 — The viscosity-temperature characteristics of slag were key factors in selecting the candidate coal types and the operation conditions of the entrained flow gasifier.

Most components of the coal mill will be supplied by Gebr. Pfeiffer India. ... Ecocem France has ordered a Loesche type LM 46.2+2 CS mill for a slag cement grinding plant that it is building in Dunkirk. It follows a previous order by Ecocem of a LM 46.2+2 CS mill for the dry grinding of ground granulated blast furnace slag (GGBFS) at its plant ...

 — The blast furnace (BF) slag waste heat was recovered by an integrated system stage by stage, which combined a physical and chemical method. The water and coal gasification reactions were used to recover the heat in the system. Based on the first and second law of thermodynamics, the thermodynamic analysis of the system was …

 — No discharge of cargo residues should occur less than 12 nautical miles from the nearest land, or the nearest ice shelf. No discharge of cargo residues should occur within the six MARPOL defined 'Special Areas'. No discharge of any cargo residues specified as HME. Hold wash water should be discharged to a suitable reception facility …

Semantic Scholar extracted view of "The study of slag discharge behavior of entrained-flow gasifier based on the viscosity-temperature characteristics of different types of coals" by Kuo Lin et al. ... The internal and external factor on coal ash slag viscosity at high temperatures, Part 1: Effect of cooling rate on slag viscosity, measured ...

 — Steel slag could be valuable for promoting a sustainable relationship between the concrete and steel industries. C 2 S, C 3 S, C 4 AF, and C 3 A in steel slags are typical mineral phases of Portland cement, indicating the potential of steel slags to function as hydraulic materials. Therefore, one recycling option is to grind steel slags …

 — The results show that the prismatic grooved drill pipe forms three slag discharge channels in the borehole collapse area: fluid dynamic slag discharge (F), …

the slag discharge eect from high to low are the pressure of the slag discharge channel, aperture of the water inlet channel, length of the machine, pressure of the water inlet channel, and ...

 — The dissolution of CO 2 in the aqueous ammonium salt solution is the speed-control part of the Slag2PCC process (c.f., Equation 2). Results reported that 4–5 mm CO 2 bubbles dissolved when they rose ~1.6–1.9 m in an unmixed water column (Legendre and Zevenhoven, 2016, 2017).Recently, Zevenhoven et al. (2019) proposed that properly …

 — The only documented study on recovery of slag heat through coal gasification is a materials-energy balance analysis by Li et al. [69] in China. In the proposed coal gasification system, CO 2 is injected together with coal into a molten BF slag bath, generating carbon monoxide through Reaction (1). The sensible heat of off-gas is …

 — SEM, particle size analysis, and contaminant content of coarse coal gasification slag (CCGS) produced by Shenhua Xinjiang Chemical Co., Ltd. were measured, respectively, and the physicochemical properties of the soil after improvement using gasification slag were investigated in this paper. The results showed that the slag …

 — Article. Multiscale analysis of fine slag from pulverized coal gasification in entrained-flow bed. Research. Open access. Published: 03 February 2024. Volume 11, …

Fig.ismatic grooved drill pipe 1 Pr grooved drill pipe forms three slag discharge functions: uid Fig. 2 Principle for overcoming borehole collapse area. a Radial slag discharge principle. b Slag discharge route (a) Radial slag discharge principle (b) Slag discharge route 141 Page 2 of 9 Arab J Geosci (2022) 15: 141

 — The prismatic grooved drill pipe was used in the Xinyuan Coal Mine. The field test results show that (1) the slag discharge effect was good, (2) the drill pipe did not get stuck or broken during drilling, (3) the average borehole depth attained a design depth of 130 m, and (4) the deepest borehole was 200 m. ... This paper proposes a prismatic ...

 — To investigate the movement law of the multiphase flow field in the gas-lift reverse circulation slag discharge during drilling shaft sinking, a simulation experimental …

 — Application of electromotive force between molten iron–carbon and slag is shown to decarburize iron. Electrorefining decarburizes by direct interfacial electrochemical reaction, resulting in low ...

Cite this article: PEI Hongchen. Renovation and Automatic Control of Coal Mill Slag Discharge System[J]. Cement Technology, 2021, 1(4): 71-72.

 — This paper focuses on the Jinhua furnace coal gasification slag (fine slag, FS; coarse slag, CS) as the research subject, analyzing its composition and structural characteristics, and discussing the …

CONTROL SYSTEMS Generally worthwhile replacing control and instrumentation systems in older plant to increase efficiency and flexibility Such retrofits can give faster ramp …

 — Fig. 1 shows the liquid flowing slag and granulated slag at the production site of a liquid slag discharge furnace in a coal-fired power plant. Download ... before the tests. Before the characterization, the samples of three coal slags were ground (75 μm) with a ball mill and then dried in an oven at 105 °C for 24 h to remove moisture on the ...

 — However, carbide slag, a waste product rich in Ca(OH) 2 and possessing a low decomposition temperature, can be an economically viable alternative to limestone. In this study, the desulfurization characteristics during coal combustion with carbide slag addition were studied both in a fixed-bed reactor and a 30 kW CFB reactor. The effect of ...

The crystal growth process has an important influence on the viscosity of the slag, which affects the characteristics of the slag layer on the wall of the gasifier. The slag flow and heat transfer model based on temperature–time–viscosity of crystalline slag were established, to predict the slag behaviors and protect gasifier. The results showed the overall viscosity …

 — This study employs low field nuclear magnetic resonance (LF-NMR) analysis to investigate the water occurrence states in a filter cake with 70.7% moisture content …

Cement and granulated blast-furnace slag; Coal and petcoke; Gypsum; Clay; Limestone; Quicklime and lime hydrate; Mining/Ores/Minerals; Other materials; ... Discharge of adverse ingredients as an option: 5: Maintenance door with Lift-and-Swing System: 6: ... MPS 200 BK coal mill, Krimzement Bakhchisarayski, Ukraine. MPS 3070 BK coal mill, Jaypee ...

 — To elucidate the distribution law of the multiphase coupling slag discharge flow field in gas-lift reverse circulation during drilling shaft sinking, a numerical analysis model of gas-liquid-solid multiphase coupling slag discharge was established by CFD-DEM (Coupling of computational fluid dynamics and discrete element method) method, taking …

an important influence on the slag discharge behaviors both in steady state and unsteady state.28,29 The slag was regarded as bubble-containing heterogeneous matter, which would affect ... generation and growth of crystals in coal slag under cooling process. The results showed that low cooling rate and long residence time promoted the growth ...

 — Coal gasification technology has led to a significant discharge of solid waste known as coal gasification slag (CGS). However, the high composition of Si and Al in CGS, along with its high carbon content, offers opportunities for potential resource utilization.

 — Through the slag dynamic flow model, the slag discharge behavior of the Shell gasifier was studied. According to several typical virtually constructed viscosity-temperature curves, the effects of slag type, critical viscosity and temperature of critical viscosity on the slag discharge process were studied.