Despite the current difficult world situation, Energosteel Company is continuing its work on the upgrading grinding process at its customers’ enterprises. Thus, the industrial tests of Energosteel’s production grinding balls began in early March 2020, at the largest mining and processing plant in Georgia. Specific nature of the tests was as follows: the substitution of steel grinding balls used earlier must be pursued simultaneously into all nine ball mills working in the first and second grinding phase. The steel grinding balls 100 mm and 60 mm in diameter and 60 HRC used earlier according to the DSTU 8538-2015. The steel grinding balls 100 mm and 60 mm in diameter and 65 HRC were delivered as a pilot batch (according to the DSTU 8538-2015.). This is our first industrial test of high hardness grinding balls of large diameters. Therefore, our representative was on the scene of experimentation. We have done the following: The visual inspection and the measurement of mill occupancy rate was conducted. The all technical and technological specifications of mill performance were collected and analyzed. The Methodology for conducting tests was developed. The loading of test grinding balls into all mills was carried out. Re-inspection of several mills was […]
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The F. Bond rod mill Currently, the use of grinding rods is not very widespread among the Ukrainian producers. Still, this type of grinding media is used and we consider it appropriate to consider the F. Bond calculation, which we are talking about in series of articles. RWi is the rods grinding work index. It is applied for the energy input calculation (kW*h/t), that is needed to grind one ton of material in the rod mill. Rod mills are used in the grinding of material (on the whole, the ore), the size of which is -13,2 +3,2 mm. In practice, this method is applied for the energy input calculation to engineer first grinding stage in the ball mills at the ore mining and processing enterprises. The formula used for calculation the RWi index is as follows: where D is the size hole of classification sieve (µm); Gc – material grindability at the rod mill (g/r); F80 and Р80 – the mesh size whereby 80% of material is sieved in starting material and industrial product, respectively. Grindability (Gc) means the quantity of sieved material, that is reseived during one rotation of the F. Bond mill. As in crush process engineering, the […]
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We’ve been waiting for this film for a long time. And today, we are pleased to share it with all of you!!! Are you intrigued? We are glad to present you the movie about our company. Hurry and hit the «PLAY» and plunge into the atmosphere in Energosteel style.
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The F. Bond Pendulum crusher Carring on with a theme that we’ve already touched in the previous publication, we will consider the methodology of the F. Bond index calculating. As you know, there are three calculation methods. The method selection depends on the crushing/grinding stage (the power size and the necessary finished class). The crushing work index (CWi) is an indicator characterizing the energy amount (kW * h / t) needed to destroy single pieces of material with a relatively large size range (-75 + 50mm). The impact on such material generally is provided by using impact energy (crushing process), that is formed by collision of two oncoming pendulums. The difficulty in calculating the CWi index is that each single piece of material (depending on its size) has its own specific fracture energy index. Therefore, the general index CWi is no more than the average of separately calculated indices. The greater number of destroyed pieces of material, the more accurate the final calculations. Calculations are made for 20-30 pieces generally. The piece sizes are included in the previously indicated range. where n – is the number of test samples (not less than 20 pcs.). The formula for calculating the CWi […]
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The nominal UAH revaluation in 2019 triggered a vigorous debate among stakeholders on the effect of currency appreciation on the economy. Therefore the ENERGOSTEEL Company representatives took part in the EVA event “Volatile currency exchange rate: how to mitigate the risks?” in February 2020. The key challenges and opportunities of this situation have been considered and provided a forum for further discussion with market players during the expert discussion. The debate revealed the arguments of NBU Board, Government, exporting and importing business as well as domestic manufacturers. ENERGOSTEEL Company thanks to EBA for the excellent organization of the event, the interesting presentation of information and answers to pressing questions.
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The standard DSTU 8538: 2015 “Steel grinding balls for ball mills” was put at 01.07.2016 and is the main regulatory document governs the quality of our products. Earlier we wrote about the standard DSTU 8538: 2015 here, here and here. This article will discuss what changes have been made to the standard for 3 years from the date of its operation. The first “amendment” to DSTU 8538: 2015 appeared in 2016, a typo was corrected in it as an example of the balls symbol in paragraph 4.2, where there was originally a link to the old DSTU 3499-97. The State Enterprise “UkrNIUTS” by Decree No. 141 of 08/08/2017 was amended by amendment No. 1 from 08/15/2017. In this change, typos are again removed in clause 4.2. and made changes to clause 5.1.4 table 2 note 3. Previously, the note looked like this: “The same determination method shall be applied during the hardness control by the manufacturer and the consumer” Taking into account the changes made, it now looks like this: “In the case of the hardness control the grinding balls, the consumer must apply the same method by which the manufacturer determined the hardness of the finished product.” We never […]
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Technical supervision of a certified quality management system in the steel grinding balls production for compliance to DSTU ISO 9001: 2015 “Quality Management System” was held at Energosteel Plant from November 2019 till January 2020 Recall, the ISO 9001: 2015 standard “Quality Management System” is the best-recognized safety mechanism in the world ensures the quality of products (steel grinding balls) at all stages of the production cycle and helps to increase the productivity of consumer enterprises. Technical supervision has been provided by the State Enterprise “Kharkivstandartmetrologiya”. Energosteel Plant, LLC confirmed the validity of certificate No.UA 8O072.33671383.1-2018 without comments and recommendations. Summing up, we would like to note, the regular conduct of such audits is one of the most important components of the Energosteel Company quality management system. The certificates obtained by us indicate the quality management system of our enterprise not only functions effectively but also is constantly checked, analyzed and improved.
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Last year, we affected one rather interesting topic – use of the energy indices in the grinding process design. We had planned to consider three calculation methods. Having studied this issue in more detail, we’ve decided to cover this topic in more detail. We will try to briefly, but as informative as possible, describe the methodology for providing the fifteen generally accepted laboratory tests types. All those methods based on the F. Bond works, who as early as the 1950s put forward his famous theory (in narrow circles it is called the “third theory”). F. Bond claimed, during the grinding process designing, it is necessary to calculate the specific energy spent on reducing the material initial particles size to the required size after grinding. General view of the Bond theory equation has the following form: Where: E is the specific energy of particle size reduction for 1 ton of material, kW * h / t; Wi – Bond’s working index; P_80 – the mill feed size, 80% passes the control sieve; F_80 – the product size at the output, 80% passes the control sieve. What does the term “F. Bond’s Working Index” mean? The “F. Bond’s Working Index” is a […]
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In January 2020 the testing laboratory of Energosteel Company expanded the scope of the measurements and added radiation control to own type of activity, as evidenced by Supplement No. 1 of January 24, 2020. to certificate No. 01-0043 / 2019. according to DSTU ISO10012: 2005 “Measurement management systems. Requirements for measurement processes and measuring equipment.” The audit has been conducted by the State Enterprise “Kharkiv Regional Scientific and Production Center for Standardization, Metrology and Certification”. The process of implementing radiation monitoring took a long time from September 2019 to January 2020 and included the following stages: The study of regulatory documents governing this type of measurement in Ukraine Training and education of employees Instrument purchase for measurements and its verification Drafting instructions and methods for taking measurements. Radiation monitoring will allow Energosteel Company not only to accept the billet for the steel grinding balls production but also will guarantee our consumers that our products are explosion safe, chemically safe and radiation safe.
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January is the month of summing up the work done for the previous year. We would like to share the SEO-promotion results of our corporate website for 2019. The total traffic to our site increased by 23%, and the visitor’s quantity is over 40,000 users in 2019!! The top 10 popular site pages for the year look like this: About us The system of a ball mill Contacts Ukrainian mining & processing enterprises The material science and steels heat treatment. Investigation methods the metals and alloys structure Russian version of point 7. The operating principle of the ball mill Manufacturing News Producs In total for 2019, we published 57 articles available in 3 main languages – Ukrainian, Russian and English. The topics of our articles are company news, industrial test results, exhibitions, business trips, the geography of our grinding balls supplies, and a lot of useful information for all industry experts. Describing the results of the industrial tests in our articles, we have proved in practice a more efficient use the steel grinding balls as a grinding medium than cast iron alloyed with chromium cylpebs. Twice (!) in the last year. Links for article 1 and article 2 The top […]
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The Energosteel Company aimed not only at the highest quality steel grinding balls production but also tries to be as useful as possible for the client. That’s why, we launched a new service on our website – “Calculation Of The Filling Degree The Ball Mill with Grinding Media” Link to the service – https://energosteel.com/en/calculation-of-the-filling-degree-the-ball-mill-with-grinding-media/ You just need to fill out the form on the page and you guaranteed to receive an accurate calculation of the filling degree the ball mill with steel grinding balls from our technical support specialists in the shortest possible time.
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In this article, we want to summarize the activities of ENERGOSTEEL Company in the social networks for 2019. Earlier we mentioned resources we can be found in addition to the official site energosteel.com: Facebook Instagram LinkedIn Youtube The 57 publications were posted on the ENERGOSTEEL Facebook page in 2019. The most popular was the video – ENERGOSTEEL Company’s Dynamic Life. ENERGOSTEEL Company published 82 posts in the corporate Instagram account and collected 2066 likes in 2019!! The most popular post on expanding the steel grinding balls range and production launching the 35mm grinding balls – https://www.instagram.com/p/BxkFvTSCQJ4/ The first vlog appeared on our Youtube channel in 2019 – ENERGOSTEEL Company provides industrial tests In general, we are pleased with our performance in the social networks. We are focused on further development in this direction in 2020. This means we will more often please you with even more useful and interesting content.
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“Repetitio est mater studiorum”, the famous proverb “Repetition is the mother of learning” sounds in Latin. This adage is especially relevant after the Xmass holidays. Therefore, we decided to remind you very useful section of our site – Wikipedia, which contains all terms of the industry. To view the Wikipedia Section, you need to go to the Library menu item and select the Wikipedia section from the pop-up list, or just click on the link – https://energosteel.com/en/library/wikipedia/ . All terms are available in 3 main languages - Ukrainian, Russian and English. ENERGOSTEEL always cares about you, dear partners!
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Dear partners! Merry Christmas and Happy New Year! Let all plans be achieved, dreams and desires come true, and let miracles happen not only on New Year’s Eve! Let the business grow and make you happy with new successes and achievements. May success accompany all your undertakings and may all your affairs end in success! Happiness to you and your loved ones! Best wishes, ENERGOSTEEL Team
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Mastering the foreign markets for the grinding media supply, the ENERGOSTEEL company specialists have noted one peculiarity for themselves. Many foreign enterprises use SAG mills (self-grinding and semi-self-grinding mills) in their grinding scheme. Recall, a SAG mill is a mill type for the material grinding with a larger diameter than its length. The steel grinding balls with large diameters from 100mm to 125mm and above are the grinding media in such mills. As a rule, the filling rate of SAG mills with grinding media is from 6% to 12%. For example, the filling rate of conventional pipe ball mills ranges from 25% to 50% (depending on the material grinding requirements). The principle of grinding is a waterfall regime, i.e. maximum use of the kinetic energy of falling grinding media. The SAG mills used for the coarse grinding of large rock pieces (the first grinding stage). The necessary equipment choice for grinding material was provided on the following factors, 5-7 years ago: the grinding scheme analysis on a similar enterprise, the absence of stages the medium and fine crushing, the absence of free space for installing additional crushing equipment, the complexity degree of ore dressing, and the high abrasiveness of the […]
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We have given repeatedly in our publications the examples and the mathematical calculations disproving the prevailing opinion the need to use cast iron cylpebs for finer material grinding. In this article, we will provide you with the comparing work results of two types the grinding media – cast iron cylpebs of Ukrainian production and 35/40mm steel grinding balls by ENERGOSTEEL production. Let’s look at the course of these tests in more detail. We had the opportunity to conduct comparative tests in a laboratory mill installed on the production site of one of our customers at the end of November 2019. The mill drum divided by a “blank” partition into two equal chambers. 60 kilograms of grinding media loaded into each chamber. The 20 kilograms of material loaded into each chamber observing the proportion of grinding media to the material to be ground. The crushed material was preliminary grinding limestone. The material size was not more than 20 mm. Grinding occurred within 60 minutes. The grinding type was a dry grinding type. The crushed material samples weighing 25 grams have been selected from each chamber after 1 hour of the mill operation. After that, the selected samples have been sieved on […]
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A media mix is a combination of communication channels that a business uses to achieve marketing goals. The simultaneous use of various information platforms allows to effectively communicating with different audiences and at different stages of promoting a product and/or service. The right media mix will help optimize the company’s advertising budget increase the competitiveness and overall effectiveness of the advertising message. How to choose an effective media mix? The employees of ENERGOSTEEL Company received an answer to this question as part of the Marketing Committee meeting. ENERGOSTEEL Company thanks to the European Business Association for the excellent organization of the event and Alexey Filanovsky for an interesting presentation of information.
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More photos at photo gallery Energosteel Company took part in the largest exhibition of mining in the Middle East, North and East Africa – The MENA MiningShow 2019 in Dubai (UAE) On November 5 – 6, 2019. MENA MiningShow is the largest and most significant event for the global mining industry in the Middle East and Africa. Over 12 years, the event managed to establish itself as the most important platform for the presentation and exchange the latest technologies, equipment and services. About 2,000 guests take part in the event annually, including regional statesmen, leading mining companies, major traders, investors to build sustainable relations in the industry. It was important for us that the exhibition was visited by representatives of world companies – direct consumers of steel grinding balls. We had the pleasure of talking with senior executives by the largest mining corporations of the Middle East and the African continent, constantly use the grinding balls for ball mills in their production processes. For Energosteel Company, MENA MiningShow 2019 was an exceptional opportunity in holding 13 business meetings and visiting industrial sites of potential key customers in this region.
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