Analysis of the breakage rate function for selected process parameters in quartzite milling

Olejnik, Tomasz P.

doi:10.2478/v10176-012-0011-4

Cited by 15 publications

(10 citation statements)

References 9 publications

(12 reference statements)

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“…The current main drive of the new rotary kiln is 261 kW [24]. Electricity consumption data before and after modernization are counted data and are collected and analysed by the internal services of the cement plant [25]. The devices that are part of the furnace system have an ION 7330 meter.…”

Section: Saving Final Energy In Electricitymentioning

confidence: 99%

Energy Efficiency – Ecological and Economic Profitability

Hawrylak¹

2020

Architecture, Civil Engineering, Environment

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The aim of the paper is to draw attention to both the average annual savings in the costs of consumed fuels and energy, as well as the possibility of obtaining additional funds in the case of implementing projects aimed at improving energy efficiency. On the example of an implemented investment in a cement industry company, the achieved energy savings and obtained economic savings in the form of reduction of fuel and energy costs were analysed. Moreover, it was shown what additional support can be obtained in the form of energy efficiency certificates, the so-called “White certificates”, issued by the President of the Energy Regulatory Office, and the resulting property rights become an exchange commodity and are traded on Towarowa Giełda Energii SA. The purpose of this paper is to estimate how much money will be financed from the certificates.

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Section: Saving Final Energy In Electricitymentioning

confidence: 99%

Energy Efficiency – Ecological and Economic Profitability

Hawrylak¹

2020

Architecture, Civil Engineering, Environment

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“…Such material usually requires additional technological operations adjusting its properties to the non-pressure agglomeration process. In the case of granular materials, it must have an appropriate granulometric composition, moisture, bulk density, and chemical composition, while it should be remembered that the waste materials used in the granulation process can be either loose materials or those that can be crushed [10,11] and sieved [12,13] to a preferred form, and liquids that serve as binders [14]. Examples of waste bulk materials that can be used in the granulation of agricultural fertilizers are phosphogypsum [15] and sulfogypsum [16], post-saturation mud [17] and ashes resulting from biomass combustion [18], as well as maize straw [19], millet and cane [20], and coal ashes [21].…”

Section: Introductionmentioning

confidence: 99%

Industrial Verification and Research Development of Lime–Gypsum Fertilizer Granulation Method

et al. 2021

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This work concerns non-pressure granulation of mineral materials used for the production of agricultural fertilizers for soil deacidification. In order to expand the product range of Nordkalk Poland sp. z o. o. located in Poland, the granulation conditions of the gypsum–lime mix were examined with the use of various granulation methods. The processed mixture was Jurassic lime flour mined in the Sławno mine (Poland) and waste gypsum (sulfogypsum) obtained from the largest coal-fired power plant in the EU, Bełchatów Power Plant (Poland). This paper presents the results of the optimization of the gypsum–lime fertilizer granulation process. The results of the study of granulation of gypsum–lime mixture realized in one-stage technology in a disc granulator were compared with the effects of two-stage agglomeration. During the research, a mixture (in a 1:1 ratio) of waste sulfogypsum and lime flour was used. Such a weight ratio provides maximum use of the sulfogypsum waste while maintaining good mechanical properties of the granulate. The granulated bed was moistened with a lignosulfonate solution. The process was carried out periodically. After the experiment, the grain composition of the granulate obtained was determined and tests were performed to determine the strength of the product. The test results were compared with analogous ones obtained during granulation with the use of molasses (waste from sugar production). The results obtained were verified during a trial carried out on an industrial scale.

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“…At the same time, during disc or drum granulation, apart from the agglomeration process, an impact effect of granules takes place, leading to the disintegration of the newly formed granules. The destructive impact effect of the granulated raw material slows down the kinetics of the process, increasing the unit energy inputs [ 31 , 32 , 33 ]. The work of the disc granulator consists of rotating the disc, inclined at an angle of 40–60 degrees, around its axis, which is mounted on a disc rigidly mounted on a rotating drive shaft.…”

Section: Introductionmentioning

confidence: 99%

Obtaining Granules from Waste Tannery Shavings and Mineral Additives by Wet Pulp Granulation

et al. 2020

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This paper presents the results of research on the granulation process of leather industry waste, i.e., tanning shavings. It is economically justified to granulate this waste together with mineral additives that are useful in the processes of their further processing. Unfortunately, the granulation of raw, unsorted shavings does not obtain desired results due to their unusual properties. In this study, the possibilities of agglomeration of this waste were examined by a new method consisting of the production and then the granulation of wet pulp. During granulation, no additional binding liquid is added to the granulated bed. As part of this work, the specific surface of granulated shavings, the granulometric composition of the obtained agglomerates, and their strength parameters were determined. The use of a vibrating disc granulator, the addition of a water glass solution (in the pulp), dolomite, and gypsum made it possible to obtain durable, mechanically stable granules.

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Analysis of the breakage rate function for selected process parameters in quartzite milling

Cited by 15 publications

References 9 publications

Energy Efficiency – Ecological and Economic Profitability

Energy Efficiency – Ecological and Economic Profitability

Industrial Verification and Research Development of Lime–Gypsum Fertilizer Granulation Method

Obtaining Granules from Waste Tannery Shavings and Mineral Additives by Wet Pulp Granulation

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