Study on Coal Lean Mining Theory and Practice

2012 ◽  
Vol 605-607 ◽  
pp. 538-541 ◽  
Author(s):  
Zhao Xia Liu

Through in-depth research and analysis of coal production process, the concept of "lean mining" is puts forward in this paper, and Lean mining system is structured which includes objective, code of practice, technical solution, operation foundation and circumstance basis. Finally the theory is carried out in coal mining practice activities, by which the working efficiency is improved and the profit of enterprises is increased, by which the clean production and lean mining are achieved.

2014 ◽  
Vol 59 (2) ◽  
pp. 395-411 ◽  
Author(s):  
Józef Dubiński ◽  
Marian Turek

Abstract The actual situation of hard coal mining in Poland has been presented. In particular, these factors, which have impact on the competiveness of mining sector were highlighted and need of its improving has been stressed. Outlining present situation of hard coal mining an attention was paid to its specific threats. The primary analytical material is based on the results of questionnaire conducted among 92 specialists and experts from the mining sector. The questions were related to chances and threats for development of hard coal mining in Poland. The factors determining them were grouped in such domains as economy, technology, geology, social and law aspects. Moreover, the special attention was paid to the problem of increasing and high costs of coal production which constitute significant threat for the financial and economic situation of the mining enterprises. Also the adverse influence of these high cost on the competitiveness of Polish hard coal with other world producers and with other energy carriers was emphasized. The conclusions summarize the achieved results of analysis.


Author(s):  
Наталья Алексеевна Бойко ◽  
Наталья Владимировна Ромашева

Представлена характеристика угольной отрасли России по таким направлениям как организационная структура, объем и регионы добычи, потребители угля. Выявлены положительные тенденции, определены проблемы в развитии угольной промышленности. Исследованы негативное воздействие угольного производство на такие компоненты окружающей среды, как атмосферный воздух, водные ресурсы, земная поверхность. The characteristic of the Russian coal industry in such areas as the organizational structure, volume and regions of production, coal consumers has been presented. Positive trends and problems in the development of the coal industry have been identified. The negative impact of coal production on environmental components such as atmospheric air, water, the earth’s surface has been investigated.


JOM ◽  
2018 ◽  
Vol 70 (8) ◽  
pp. 1437-1442
Author(s):  
Tianzu Yang ◽  
Liangqiang Liu ◽  
Weifeng Liu ◽  
Duchao Zhang ◽  
Lin Chen

2021 ◽  
Vol 1 (1) ◽  
pp. 26-32
Author(s):  
I Iswahyudi ◽  
M Muslimah ◽  
A Abdurrachman

ABSTRAKTujuan kegiatan pengabdian ini adalah memberikan pelatihan produksi bersih dan manajemen usaha kepada kelompok usaha garam rakyat di Desa (Gampong) Kuala Idi Cut Kecamatan Darul Aman Kabupaten Aceh Timur. Prosedur pelaksanaan kegiatan teridiri dari; koordinasi kegiatan, sosialisasi, pelatihan, dan pendampingan. Kelompok masyarakat yang menjadi mitra pada kegiatan ini adalah Kelompok Putik Meulu.  Kelompok tersebut merupakan salah satu kelompok usaha garam rakyat, dengan anggota kelompok terdiri dari inong balee (janda) yang kehidupan ekonominya serba kekurangan. Kelompok ini telah menjalankan usahanya sejak tahun 2000 dan mampu memproduksi garam setiap hari sekitar 200 kilogram dari lima dapur dengan aset sekitar Rp 23.500.000. Hasil yang didapatkan, dengan adanya pelatihan produksi bersih garam dan berbagai macam manajemen pengelolaan usaha mampu merubah pola pikir mitra terkait dengan proses produksi garam. Dimana dapur garam dibuat permanen, diberi pagar keliling sehingga terhindar dari hewan yang masuk ke dapur garam. Dari aspek produksi, rata-rata produksi garam meningkat menjadi 90 kg/hari. Selain itu, garam yang dihasilkan juga berwarna putih dan bebas dari kotoran. Kesimpulan, dengan adanya pelatihan produksi bersih garam dan berbagai macam manajemen pengelolaan usaha diharapkan dapat membuka pola pikir petani garam mitra untuk menggunakan teknologi yang maju agar produktivitas garamnya meningkat.Kata kunci: garam rakyat, manajemen usaha, produksi bersih garam ABSTRACTThe purpose of this service activity is to provide training in clean production and business management to the people's salt business group in Kuala Idi Cut Village, Darul Aman Sub-District, East Aceh District. The procedure for implementing activities consists of; coordination of activities, socialization, training, and mentoring. The community group that is a partner in this activity is the Putik Meulu Group. The group is one of the people's salt business groups, with group members consisting of inong balee (widows) whose economic life is completely deprived. This group has been running its business since 2000 and is able to produce around 200 kilograms of salt every day from five kitchens with assets of around Rp 23,500,000. The results obtained, with training in clean salt production and various kinds of business management, are able to change the mindset of partners related to the salt production process. Where the salt kitchen is made permanent, it is given a fence around so as to avoid animals entering the salt kitchen. From the production aspect, the average salt production increased to 90 kg/day. In addition, the resulting salt is also white and free from impurities. In conclusion, with training in salt clean production and various kinds of business management, it is hoped that it will open the mindset of partner salt farmers to use advanced technology to increase their salt productivity.Keywords: people's salt, business management, clean salt production


2022 ◽  
Author(s):  
Zhe Bing ◽  
Xing Wang ◽  
Zhenliang Dong ◽  
Luobing Dong ◽  
Tao He

2017 ◽  
Vol 11 (46) ◽  
pp. 1-6
Author(s):  
Mirielis Mej�a Escudero ◽  
Danny Daniel L�pez Juvinao ◽  
Geomar Molina-Bol�var ◽  
◽  
◽  
...  
Keyword(s):  

2015 ◽  
Vol 60 (S1) ◽  
pp. 121-143
Author(s):  
Tom Arents ◽  
Norihiko Tsuneishi

AbstractAfter Japan’s colonization of Korea in 1910, many Korean peasants lost their land owing to the changes imposed in agriculture, and several Japanese coalmining companies started to recruit them as a colonial surplus population. Despite the low wages they offered, not all of the companies relied on Korean miners – the distribution of this workforce was strikingly uneven. Focusing on the mines of Chikuhō and Miike in the Fukuoka prefecture during the 1910s and 1920s, this article argues that the distribution of Koreans was a consequence of uneven capital accumulation among different mining companies. This unevenness reflected the differing wages and recruitment policies of these companies. Correlating earlier groups of cheap labourers, such as convict workers, to this history, we suggest some explanations as to why some mining companies brought Korean workers into the coal-production process as an immediately available, cheap, and disposable workforce, while others did not.


2012 ◽  
Vol 252 ◽  
pp. 207-210
Author(s):  
Jing Zhao Li ◽  
Hui Mei Deng

The framework of initiative coal mining system based on the perception layer of Internet of things (IOT), took the way of combination initiative acquisition, with timing and real time to implement “people, ring, and material” perception of the underground of coal mining is proposed. On this basis, coal mining material active perception system is designed. This system applies computer and IOT perception instead artificial operation in the current coal manufacturing equipment and material field. It is analyzed that design concepts of coal mining material active perception system, function and characteristics, system structure, information collecting, data synchronization and EPC coding of coal manufacturing equipment and material.


Sign in / Sign up

Export Citation Format

Share Document