MODELING OF PROCESSES AND DEVELOPMENT OF MEASURES TO REDUCE DUST AND GAS EMISSIONS AT THE QUARRIES OF MINING AND PROCESSING PLANT

2019 ◽  
Vol 12 (2) ◽  
pp. 26-32 ◽  
Author(s):  
Алла Звягинцева ◽  
Alla Zvyaginceva ◽  
Светлана Сазонова ◽  
Svetlana Sazonova ◽  
В. Кульнева ◽  
...  

Existing measures for the suppression of dust and gas emissions during mass explosions at the quarry of a mining and processing plant were investigated. Measures have been developed to reduce dust and gas emissions, taking into account the analysis of existing measures to suppress dust and gas emissions from mass explosions in the open pit of the mining and processing plant of Lebedinsky GOK. The studies of surface active substances on the wettability of dust particles. In order to improve working conditions, it was proposed to reduce dust and gas emissions by suppressing them at the source of education, using the method of wetting and sticking of dust particles. The proposed engineering - technical solution can be used to reduce dust and gas emissions during massive explosions in the quarries of various mining and processing enterprises. The developed method is proposed to be used to ensure environmental safety and improve working conditions in industries with high dustiness by increasing the efficiency of dust collection.

2019 ◽  
Vol 12 (2) ◽  
pp. 10-16 ◽  
Author(s):  
Алла Звягинцева ◽  
Alla Zvyaginceva ◽  
Светлана Сазонова ◽  
Svetlana Sazonova ◽  
Виктор Асминин ◽  
...  

The data of field measurements of harmful production factors at JSC "Lebedinsky GOK" in the working areas and at the enterprise as a whole are given. The data correspond to the types of official control and monitoring of the current state of the situation in the enterprise. The impact of harmful production factors in the workplace on the health of personnel, as well as the dust released during the work on environmental pollution of the adjacent territories is considered. The analysis of the results of control activities and existing environmental measures with a view to their improvement. The proposed types of control have been proposed to be used to improve working conditions in industries with increased exposure to harmful production factors due to the improvement of the types of control carried out and the necessary measures.


2004 ◽  
Author(s):  
Leif Sandsjo ◽  
Lena Grundell ◽  
Kirsi Valtonen ◽  
Ann-Katrin Karlsson ◽  
Eira Viikari-Juntura

2021 ◽  
Vol 46 (1) ◽  
pp. 252-267
Author(s):  
Rashmi Dyal-Chand

Preemption is one of the most important legal doctrines for today’s progressives to understand because of its power to constrain progressive policymaking and social movement lawyering at the state and local level. By examining the detailed history of a decades-long campaign by the labor and environmental movements to improve working conditions in an industry at the heart of the global supply chain, Scott L. Cummings’s Blue and Green: The Drive for Justice at America’s Port (2018) provides a case study about the doctrine and impacts of preemption. The study also inspires lawyers and activists alike to reexamine core questions of factual relevance, representation and voice, and precedent.


2020 ◽  
Vol 5 (3) ◽  
pp. 49-61
Author(s):  
Andrii Cheilytko ◽  
◽  
Sergii Ilin

The development and application of new, more efficient dust collection units that will help reduce emissions and conserve some very valuable resources for production is an important area of research. With the growth of innovation in technological enterprises, the number of harmful emissions into the atmosphere is growing. Thus, the ecological condition of the environment deteriorates. The basic analytical dependences which are necessary for construction of a technique of carrying out experiments and calculations of dust catching for concrete working conditions are developed. Methods of calculating cyclones as vortex devices and research of cyclone operation for air purification from dust were investigated. On the basis of the used basic theoretical positions of heat and mass transfer and thermodynamics at carrying out analytical researches the mathematical model was offered. Calculations of new designs of modern cyclones to obtain their geometric dimensions, resistance and dust capture efficiency were presented. Modern cyclones are designed to more effectively remove dust from the air during various types of work.


2001 ◽  
Vol 46 (3) ◽  
pp. 341-369 ◽  
Author(s):  
Mary Hilson

Naval dockyards have been largely neglected by labour historians, a surprising omission given their importance as industrial workplaces with a distinct culture of labour and labour relations. This article considers labour politics in Karlskrona dockyard, Sweden, in the light of a growing body of research on work and labour relations in the British and other European dockyards. Evidence from Karlskrona suggests that, rather than being repressed by military discipline or bought off by generous state benefits, the dockyard workforce drew on aspects of its unique relationship with the national state to improve working conditions. Particular attention is given to the role of the dockyard trade union in creating a sense of workforce identity as state employees. This is in contrast to the British dockyards where unionism was founded on the rigid division of labour in the shipbuilding industry.


2017 ◽  
Vol 240 ◽  
pp. R5-R14 ◽  
Author(s):  
Diane Coyle

Digital platforms have the potential to create benefits for their suppliers or workers as well as their customers, yet there is a heated debate about the character of this work and whether the platforms should be more heavily regulated. Beyond the high-profile global platforms, the technology is contributing to changing patterns of work. Yet the existing framework of employment legislation and public policy more broadly – from minimum wages to benefits and pensions – is structured around the concept of ‘the firm’ as the agent of policy delivery. To reshape policies in order to protect the interests of people as workers as well as consumers, it is important to understand why digital innovators make the choices they do, and therefore how labour market policies can improve working conditions without constraining the productivity and consumer benefits enabled by digital business models.


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