Crushing mechanism plays a vital role in liberation of coal macerals (organic constituents), which aid in coke making. Due to the use of impact mills, vitrinite maceral grains shatter and participation in coke making is reduced. To address this issue, a new crushing machine based on a shear fracture mechanism has been developed and …
coke ovens must be crushed, usually to a top size of about 314-inch. Very small sizes must be screened from the crushed coke, leaving an acceptable size of about 3/4" ~1/8". …
which explain coke formation in coke drums. Knowledge of commercial delayed coking units as well as that of the GLC Pilot Delayed Coker is used in this tutorial paper to describe the formation and uses of the three types of structures of delayed petroleum coke: needle, sponge, and shot.
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Production of petroleum coke (sponge coke) Sponge coke, also known as petroleum coke or petcoke, is a carbon-rich solid material derived from the refining process of crude oil. It is produced when heavy residual oil undergoes thermal decomposition in a delayed coking unit. The resulting sponge coke has a porous and sponge-like structure, which gives […]
Results show that the crushing strength of coke is improved greatly when the hot pressing is conducted at 420 ℃∼440 ℃ for the 1/3 coking coal. Coke's crushing strength is mainly affected by porosity and pores' spatial distribution. For the high porosity, the coke has thin pore walls and the cracks could easily penetrate the entire coke.
The hot pressing operation could change the pore structure of coke significantly. Therefore, hot pressing coking is an effective technique to improve the …
The mean value is adopted as the final test result. The influence of the composition, structure, and properties of the coal used at Ukrainian coke plants on the crushing properties of coal—in the present case, specifically, the Protod'yakonov strength coefficient—is determined by analogy with [].In the present work, we investigate 14 coal …
Here we mainly introduce two coke crushing equipment (roller crusher, hammer crusher) with high customer praise rate, so that you can choose and buy for reference. ... the integrated structure of the motor base and the main machine makes installation easy and saves space. Currently, it is mainly used in coal mines, cement, metallurgy, chemicals ...
structure and composition of petcoke grains directly define the main product properties [4, 6, 7]. High electrical conductivity is obligatory for electrode coke to be used in non-ferrous metallurgy, especially in the aluminum production industry. Green coke initially has a rather high internal electric resistance.
The hot pressing operation could change the pore structure of coke significantly. Therefore, hot pressing coking is an effective technique to improve the coke quality. ... However, the coke crushing strength is lower when the coal is pressed with 6.0 MPa. The coke porosity and pores distribution are two main factors that affect the …
Changes in the equipment design improve its engineering quality and its performance: productivity, durability, precision, operational safety, and ease of maintenance. ... a bent structure in suspension, consists of linear components fixed at the ends. ... Operation of the four coke batteries and the crushing department for 17 h …
Usually coke sized over 75mm has loose structure and more primary crack. The broken coke resulting from feeding and falling in blast furnace will directly affect permeability of stock column. ... Solution to crushing & sizing equipment and system Sichuan Desheng Iron and Steel Co., Ltd. purchased a CQD-80 ring gear double-roll coke cutting ...
Compact structure, lightweight, small size, for the same production capacity requirements of the crushing system, equipped with a roller crusher can significantly save investment. The width of the discharge …
Crushing equipment is the equipment that realizes material crushing by mechanical ways such as extrusion, breaking, splitting, shearing, impact, and grinding. ... chemical industry, food, and other industries. According to the structure and working principle, the commonly used crushing equipment can be divided into jaw crushers, …
Abstract The correlations of the composition, structure, and properties of coal from Ukraine, Russia, Canada, Australia, the Czech Republic, Poland, and Indonesia with its Hardgrove grindability index are investigated. It is found that the Hardgrove grindability increases with increase in total carbon content Cdaf and aromatic carbon …
The conventional wet coke quenching system (Fig. 1) consists of the coke quenching tower, coke powder settling pond, clean water tank, dehydration bench, coke quenching pump house, coke powder grab bucket crane, dust collector, and coke quenching pipe.The coke quenching tower contains a water spray pipe. A drainage ditch …
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The Hardgrove grindability index HGI is closely related to the power consumed in crushing coal and may be used to optimize crushing in the coal-preparation shops at coke plants, as shown in [1–7].The factors affecting HGI for Ukrainian and imported coal were studied in [].The results showed that HGI depends on the carbon …
The petroleum coke crusher can crush 200-300 pieces of petroleum coke into 70-80 pieces, ensuring the combustion particle size. ... Crushing Equipment; Solution. Food …
The pore structure of coke under CO2 atmosphere was investigated by the carbon solution-loss reaction experiment. The results show that the pore size distribution of coke gradually changes from dispersion to relative concentration with the increase in carbon loss rate, but it tends to be dispersed again in the late stage of the reaction, and …
In order to study the mechanism of selective catalytic reduction of activated coke to remove NO in low-temperature flue gas and provide some theoretical basis for the development of related technologies. The pore …
The influence of grinding equipment on the contamination of the initial material is investigated. In particular, coke of different structure is ground using a drum-type ball mill, a roller mill, and a jet mill. Conclusions are stated regarding the strength of coke as a function of the microstructure (point score) and the increase in impurity …
Download Citation | Influence of crushing equipment on the elementary composition of coke | The influence of grinding equipment on the contamination of the initial material is investigated. In ...
Introduction. This impact crusher for sale is a kind of high-efficiency and energy-saving crushing equipment among multiple types of crushers for sale.The crushing compressive strength of ore and limestone, slag, coke and coal should not exceed 350 Mpa.
The correlations of the composition, structure, and properties of coal from Ukraine, Russia, Canada, Australia, the Czech Republic, Poland, and Indonesia with its Hardgrove grindability index are investigated. It is found that the Hardgrove grindability increases with increase in total carbon content Cdaf and aromatic carbon content Car, …
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Petroleum coke crushing solution. The vacuum residue of petroleum is cracked and coked by a coking device at 500 to 550°C to produce black solid coke. Its appearance is a black or dark gray honeycomb structure, and the pores in the coke block are mostly oval and interconnected. Related Products. Two Roller Coarse Crusher
American Pulverizer's Double Roll Crushers and Reversible Shredders are ideal for crushing and processing petroleum coke. They are designed for high production with minimal maintenance. ... Contact Us For questions or other information about pet coke crusher equipment. 1319 Macklind Ave, St. Louis, MO 63110 Ph: 314‑781‑6100 | Fax: …
All equipment including the Coke Cutting Systems have to meet these requirements. The requirements are summarized as a) Ambient and Design conditions in warm areas – temperature ranges from -3°C to +50°C, wetted parts 3°C to 120°C – sun, wind, rain, dust, humidity Humidity above 90%, often
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During the microstructure analysis, three kinds of structures were observed. Figure 4 shows the optical microstructures of needle,sponge, and shot coke particles whereas Fig. 5 shows a mix of all three structures present in one particle. Figure 4a shows the anisotropic microstructure of needle coke particles which has large laminar porosities ...
This paper describes some of the bulk density tests currently used and their short-comings. Effects of crushing equipment and strategy are shown. In most coke bulk density tests, mechanical action such as vibration is used to increase sample compaction. Selection and calibration of a vibrator and ancillary equipment are discussed.
During our presentation we will highlight these unique features of the system, the benefits, and the many years of experience with extremely good results in an operating unit in …
To prepare the cold empty coke receive the hot feed, hot vapors from the on-line 415 °C (780 °F) vapors condense in the cold drum, °C heating (650 °F). While the drum is …
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This study investigated influences of the open/close states of pores and porosity distribution of activated coke on the mechanical strength of common activated coke for the purification of coal-fired flue gas by analyzing pore structure, abrasive resistance, and compression strengths of 9 types of desulfurization and denitration …