The new converter shop at the Novo-Lipetsk Metallurgical Plant

Metallurgist ◽  
1975 ◽  
Vol 19 (1) ◽  
pp. 42-44
Author(s):  
Yu. P. D'yakonov ◽  
D. B. Martsinkovskii ◽  
V. I. Otochev ◽  
I. G. Rapoport
2020 ◽  
Vol 63 (1) ◽  
pp. 71-77
Author(s):  
K. O. Vinogradov ◽  
A. L. Smyslova

During the study of technological data of the process of liquid iron transportation, it was found that the number of locomotives and mixers depending on the duration of operations and especially on the inter-operational downtime does not always ensure normal rhythm of the main production. It leads to significant production losses, therefore, the work of the producing and transport complex is not effective enough. The authors have developed a simulation model of a logistics system for transporting liquid iron at a metallurgical plant. The study and construction of the model was performed using AnyLogic. Real data from production, namely the schedule of blast furnace smelting for a three-week period, was used as the initial data. To prove adequacy of the model, the results were compared with the actual tact of the mixers movement, as well as with the theoretical need of the converter shop. Values of the liquid iron weight delivered to the converter shop were obtained during the simulation and were related to the theoretical ones. Efficiency of the model is achieved by automatically collecting in real time of statistical values of the parameters of simulation objects. The system analyzes the collected data and makes decisions based on them for a short period of time (less than one second). In default operation mode of the simulation model, motion of the mixers is controlled automatically without participation of the dispatcher, which improves efficiency, as well as decision-making speed. Such model provides simulation of failures in operation of the converter shop. According to the simulation results, it can be concluded that the system delivers less liquid iron to a converter shop, but retains its rhythm. After resuming the operation of all converters, the tact of transportation reaches the required level.


Author(s):  
DR Shaikhova ◽  
AM Amromina ◽  
IA Sitnikov ◽  
MP Sutunkova ◽  
VB Gurvich ◽  
...  

Background: The development of cardiovascular diseases is determined not only by working conditions but also by genetic characteristics of employees. Genetic GSTM1, GSTT1 and GSTP1 variations contribute to individual differences in responses to industrial chemicals and carcinogens. Objective: To study the features of the genetic polymorphism of the GSTM1, GSTT1, and GSTP1 genes in metallurgical plant workers with diseases of the cardiovascular system in the town of Nizhny Tagil, Sverdlovsk Region, Russian Federation. Materials and methods: The case cohort included 61 men aged 33 to 61 years (mean: 48.15 ± 7.50 years), working in the converter shop and suffering from heart diseases. The control cohort consisted of 29 conditionally healthy male employees, aged 23–56, of the same iron and steel works having no signs of a cardiovascular disease. The DNA was isolated from peripheral blood using a standard technique. Deletion polymorphism of GSTM1 and GSTT1 genes was determined by quantitative PCR; Ile105Val polymorphism of the GSTP1 gene was established by qPCR using a commercial test kit. Results: We observed no statistically significant differences between the cohorts for any of the studied genes. The frequency of occurrence of the combination of GSTM1 (0/0) and GSTT1 (0/0) in the cases and controls was 14 % and 11 %, respectively, but the difference was negligible. Conclusions: Our findings demonstrate that the presence of null genotypes of GSTM1, GSTT1, as well as the mutant GSTP1 allele and the associated loss of enzyme activity contribute little to the development of cardiovascular diseases in workers exposed to occupational hazards.


Metallurgist ◽  
1978 ◽  
Vol 22 (6) ◽  
pp. 358-361
Author(s):  
M. V. Malakhov ◽  
V. P. Bartyshev ◽  
I. I. Basalaev ◽  
Yu. B. Shekhtman ◽  
O. V. Tarakanov

Metallurgist ◽  
2000 ◽  
Vol 44 (8) ◽  
pp. 395-400
Author(s):  
R. R. Syrtlanov ◽  
G. G. Gavrilyuk ◽  
A. V. Torgashev ◽  
Yu. A. Lekontsev ◽  
V. A. Zavidonskii

Author(s):  
G.S. Agzamova ◽  
◽  
N.U. Ibragimova ◽  
Yu.A. Abdieva ◽  

Abstract: Protecting and promoting the health of workers in the mining industry is one of the most important problems of occupational pathology and health care. The structure and levels of prevention of occupational diseases are directly dependent on harmful and adverse factors of the production environment and labor process, adequately reflecting the state of production. Purpose: to study the issues of prevention of occupational and production-related diseases of mining and metallurgical plant workers. Research materials and methods: a dynamic observation of the health status of workers in the main industries of the mining and metallurgical plant (800 workers) was carried out. 92 patients with silicosis were examined. Results: Up to 92.8% of first-time occupational diseases are detected during periodic medical examinations. The prevailing sociomatic pathology is cardiovascular pathology, namely, arterial hypertension and diseases of the musculoskeletal system, mainly osteochondrosis of the spine. Prevalence of silicosis was observed in individuals with little professional experience (from 5 years old), young age and primary detection of patients in stage II silicosis, which was accompanied by respiratory failure. Conclusions: The prevention programme developed will ensure a high level of health care in terms of early diagnosis, rehabilitation and secondary prevention of both occupational and occupational diseases.


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