scholarly journals Cupola Furnace Design and Fabrication for Industrial Development

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Yusuf Y. Ochejah ◽  
Ocheri Cyril ◽  
Ikani F. Omaone ◽  
Adejoh F. Ogwudubi ◽  
Oyibo A. Onakemu

The Cupola Furnace Capacity of 450 kilograms per hour was designed and fabricated using locally sourced raw materials which include pig irons, crop ends and foundry shop returns, and ferroalloys for the production of quality cast iron which depends on the customer’s demand. Metallurgical coke is the main fuel source employed for the production processes. The design parameters were analyzed and the metallic shells were then fabricated into four sections to allow proper lining. A mild 5 mm thick steel sheet was collected, marked out according to the required specification. slit and formed into cylindrical shapes. The sections were coupled and joined together through a welding process. Sodium silicate was used as a binder to make them bondable to the interior sections, the internal configurations were first lined with asbestos sheets measured 5 mm thick. with a less dense insulating refractory material. Fireclay refractory bricks were used for furnishing as they directly interfaced with the molten metal, while the flame blower was connected, assembled, and erected in the different segments. Financial analysis was performed to give a general overview of the cost of manufacturing and building a cupola furnace produced locally at N1,467,266.00, which is relatively cheap compared to the imported ones. The technical details were given for the production processes. The raw materials used were sourced locally as they are readily available in quantum and are essential to the government policies on adding values to the production processes by using these materials to promote the addition of these materials for the creation of local content.

A 350 kilogram per hour capacity Cupola Furnace was designed and fabricated from locally available materials for the production of cast iron using pig iron, oily or contaminated steel scraps, foundry returns and fluxes. The main fuel used is metallurgical coke. After analyzing the design parameters, the metallic shells were fabricated in four segments for easy lining: the stack zone, preheating zone, combustion zone and the hearth. Mild steel sheet of 4 mm thickness was procured, marked out as per the design drawing, sliced, rolled into cylindrical shapes and welded together at each seam. The internal configuration was lined first with asbestos paper measuring 4 mm thick using water-glass to enable it adhere to the internal shell of the segments, thereafter, a less dense insulating refractory material was used and finally fireclay refractory bricks were used for lining as they interface directly with the molten metal. The various segments were then assembled and erected with the blower connected to the combustion zone. The research work also contains the materials and components bill.


2020 ◽  
Vol 2 (3) ◽  
pp. 268-275
Author(s):  
Suparmin Suparmin ◽  
Halimatus Sa’diyah ◽  
Anas Zaeni ◽  
Tajidan Tajidan

This community service activity was carried out in Pringgarata Village, Pringgarata District, Central Lombok Regency in August 2019. This community service activity uses field learning methods which are strengthened by demonstrations of local commodity development and assisted by experts processing soybeans into soy milk and dregs. soybeans become naget. Based on the results of community service activities regarding agro-industrial development based on local commodities, it can be concluded that: 1) The extension participants have given positive responses to all stages of the activity which is indicated by the seriousness of the participants in listening and discussing existing problems and participating actively in the demonstration of making agro-industry products, 2) In general, extension participants have acquired knowledge and skills in producing from agro-industry unit products, and 3) The next suggestion is to help increase household income at extension sites and at the same time encourage farmers to provide raw materials for agro-industrial development hence an active role from the government and related parties in policy makers is needed to implement a model of income generation program through community empowerment that has been carried out through activities outreach


2021 ◽  
Author(s):  
Xiaoyong Ding ◽  
ChangAn Guo ◽  
HuaBin Hu ◽  
Yuhua Wang

Abstract Background: The wooden bowl is an important symbol of the Tibetan cultures, yet, in China, little has been documented regarding the raw materials used to make these items as well as their cultural significance in Tibet. This study explores the ethnobotanical uses of plants used to make wooden bowls to understand their sustainability, cultural significance, and current status of related traditional knowledge in Gyirong Town, which is one of the most famous places for wooden bowl making.Materials and methods: Between 2019 and 2021, key informant interviews, semi-stuctured interviews, and participatory observations were used to conduct ethnobotanical field surveys in Gyirong Valley. The field work was performed with the assistance of local guides. In this study, we utilised a use-report (UR) and relative frequency citation (RFC) to evaluate the value and importance of the species used to make the wooden bowls..Results: Our results show that 16 different plants are used during the wooden bowl making process, of which nine are used as raw materials, three for dyeing, and four for varnishing. Although communities rely heavily on these plants, good management and collection methods were observed. We also recorded the use of Fallopia denticulata as a red dye and four species of Impatiens as wood lacquers for the first time.Conclusion: We found no significant difference in the knowledge of the traditional use of plants among people of different ages and genders in Gyirong; traditional knowledge is widespread among family members and among different villages. The government and local people are committed to the protection and development of traditional knowledge related to wooden bowls, and this knowledge maintains a healthy degree of vitality. This research can provide insights into the vitality of traditional handicrafts that are facing challenges and promote their protection.


2019 ◽  
Vol 1 (1) ◽  
pp. 1-11
Author(s):  
Aris Dwi Nugroho ◽  
Tantan Hidayat ◽  
Muhammad Wachyudi Memed

Cement is powder made from lime and other materials used to make concrete, glue bricks or make walls (KBBI, 2008). Cement is a material that is hydraulic in nature, that is, a material which will undergo a hardening process in its mixing with water or acid solution. The raw materials for making cement include: clinker / slag of cement as much as 70% - 95% (the results of the combustion of limestone, silica sand, iron sand and clay), 5% gypsum and other additional materials (limestone, pozzolan, fly ash and etc). Along with the increase in infrastructure development which is the focus of the Government at this time, the need for building materials, especially cement, has increased. This increase in demand has made cement companies increase production, which in turn will also reduce the limestone reserves that exist in nature. Geological resources consist of mineral resources, energy resources, water resources, and landscapes.  Limestone  as  one  of  the  dominant  raw  materials  for  making  cement  is  a  mineral  and landscape resource that must be protected. The Ministry of Energy and Natural Resources since 2012 has issued regulations relating to the use and protection of Karst Landscape Areas (Permen ESDM No. 17 of2012). Protection of the Karst Landscape Area aims to protect its function as a natural regulator of the water system and its unique / scientific value in the development of science. Meanwhile, the delineation of utilization efforts as minerals and industrial raw materials is regulated so that it does not disturb the conservation zone. Expected with the regulations (Permen  ESDM No. 17 of 2012) can be a solution for the use and protection of the Karst Landscape in Indonesia.


2018 ◽  
Vol 4 (2) ◽  
pp. 71-91
Author(s):  
Abdul Baten

Ready Made Garments (RMG) became a huge sector in Bangladesh. This sector is contributing tremendously to our economy. Nippon Garments Ltd. (NGL) is in RMG sector which is a sister concern of Abedin Group of Industries. NGL try to follow all the rules and regulations of labor laws by labor ministry of the government of Bangladesh. They maintain all compliances properly so that it won’t be harmful to the employees and environment. Training and development are one of the crucial components of Human Resource Management (HRM), besides all of the things like recruitment, selection, and, compensation. Training and development help an organization to motivate the employees in the work place and increase skills, productivity, and confidence for effective performance. To become successful and run an organization efficiently, it is very important to maintain good HR practices. When an organization has strong HR practices, and everyone in the company follow all the rules and regulations properly then the organization can create a healthy working environment which makes everyone happy. To follow all the rules and policies for growth, an organization should train the employees as per their training needs. HR always help to find the better ways to motivate employees through training and other facilities because if employees are not happy in their workplace, then they become less productive and quit the company. As a result, turnover is going to go up. Nippon Garments Ltd. is a project of Abedin Group of Industries, and it started its operation in 1984, and during the time NGL have faced so many ups and downs, but till now it has been successful in keeping its brand reputation. NGL also established competitive work environment and proved to become the number one RMG factory in Bangladesh. It is 100% export oriented garments factory. They input their best efforts to create a remarkable reputation in the RMG sector. They have both foreign and local customers, and their main customers are from Europe. They always try to give the best quality products to their customers, and for this, they are very much conscious about the raw materials used to make their end product. They import their basic fabric from China, Pakistan, Hong Kong, and India. Regarding of innovation, they are always up to date about the fashion trends and styles. Their main products are the jacket, pant, jogging & tracksuit, trouser, and more. They build up a strong relationship with the workers and employees and they also take necessary actions to maintain the strong relationship.


2020 ◽  
Vol 1 (1) ◽  
pp. 847-862
Author(s):  
Aris Dwi Nugroho ◽  
Tantan Hidayat ◽  
Muhammad Wachyudi Memed

ABSTRAKSemen  adalah  serbuk atau tepung yang terbuat  dari kapur  dan material lainnya  yang dipakai  untuk membuat beton, merekatkan batu bata ataupun membuat tembok (Kamus Besar Bahasa Indonesia, 2008). Semen  merupakan  suatu  bahan  yang  bersifat  hidrolis,  yaitu  bahan  yang  akan  mengalami  proses pengerasan pada pencampurannya dengan air ataupun larutan asam. Bahan baku pembuatan semen antara lain : clinker/terak semen sebanyak 70% - 95% (hasil olahan pembakaran batu kapur, pasir silika, pasir besi dan tanah liat), gypsum 5% dan material tambahan lain (batu kapur, pozzolan, abu terbang dan lain- lain). Seiiring dengan peningkatan pembangunan insfrastruktur yang menjadi fokus Pemerintah saat ini, maka kebutuhan bahan baku bangunan khususnya semen mengalami peningkatan. Peningkatan kebutuhan ini membuat perusahaan semen meningkatkan produksi yang pada akhirnya juga akan mengurangi cadangan batugamping yang ada di alam. Sumber daya geologi terdiri atas sumber daya mineral, sumber daya energi, sumber daya air, dan bentang alam. Batugamping sebagai salah satu bahan baku dominan pembuatan semen merupakan sumber daya mineral dan bentang alam yang harus dilindungi. Kementerian Energi dan Sumber Daya Alam sejak tahun 2012 telah menerbitkan aturan terkait pemanfaatan dan perlindungan Kawasan Bentang Alam Karst (Permen ESDM N0. 17 Tahun 2012). Perlindungan terhadap Kawasan Bentang Alam Karst bertujuan untuk melindungi fungsinya sebagai pengatur alami tata air dan keunikan/nilai ilmiah dalam pengembangan ilmu pengetahuan. Sedangkan upaya pemanfaatan sebagai bahan galian maupun bahan baku industri diatur deliniasinya, sehingga tidak menganggu zona konservasi. Diharapkan dengan keluarnya Permen ESDM N0. 17 Tahun 2012 dapat menjadi solusi bagi pemanfaatan dan perlindungan Kawasan Bentang Alam Karst di Indonesia. Kata kunci: Sumber daya geologi, Semen, Kawasan Bentang Alam Karst  ABSTRACTCement is powder made from lime and other materials used to make concrete, glue bricks or make walls (KBBI, 2008). Cement is a material that is hydraulic in nature, that is, a material which will undergo a hardening process in its mixing with water or acid solution. The raw materials for making cement include: clinker I slag of cement as much as 70% - 95% (the results of the combustion of limestone, silica sand, iron sand and clay), 5% gypsum and other additional materials (limestone, pozzolan, fly ash and etc). Along with the increase in infrastructure development which is the focus of the Government at this time, the need for building materials, especially cement, has increased. This increase in demand has made cement companies increase production, which in turn will also reduce the limestone reserves that exist in nature. Geological resources consist of mineral resources, energy resources, water resources, and landscapes.  Limestone  as  one  of  the  dominant  raw  materials  for  making  cement  is  a  mineral  and landscape resource that must be protected.The Ministry of Energy and Natural Resources since 2012 has issued regulations relating to the use and protection of Karst Landscape Areas (Permen ESDM No. 17 of 2012). Protection of the Karst Landscape Area aims to protect its function as a natural regulator of the water system and its unique I scientific value in the development of science. Meanwhile, the delineation of utilization efforts as minerals and industrial raw materials is regulated so that it does not disturb the conservation zone. Expected with the regulations (Permen  ESDM No. 17 of 2012) can be a solution for the use and protection of the Karst Landscape in Indonesia. Keywords: Geological resources, Cement, Karst Landscape Area


Revista Foco ◽  
2016 ◽  
Vol 9 (2) ◽  
pp. 120
Author(s):  
Ercilia Socorro Souza Soares ◽  
Raimundo Kennedy Vieira

O setor de beneficiamento de rochas ornamentais vive um crescimento bastante significativo no contexto mundial. Através deste estudo propõe-se apresentar uma análise qualitativa relativa aos impactos sobre os meios físicos e antrópicos gerados nos processos produtivos das empresas de beneficiamento de pedras ornamentais no município de Manaus. Contudo há uma grande problemáticano processo de corte, polimento e acabamento das matérias primas como o mármore e o granito, pois geram grandes quantidades de resíduos tais como a poeira e a lama, formados neste beneficiamento e descartados de maneira inadequada resultam em impactos ambientais significativos, uma vez que eles contribuem para a acumulação e dispersão prejudiciais no ar, água e solo de partículas sólidas. Os dados obtidos servem como alerta ao poder público e aos geradores para atentarem quanto ao cumprimento da legislação que versa sobre a destinação final sanitariamente adequada dos resíduos sólidos, além de expor a necessidade de políticas educacionais e ambientais nesses processos de trabalho.The ornamental stone processing industry is experiencing significant growth in the global context. Through this study aims to present a qualitative analysis of the impacts on the physical and anthropogenic resources generated in the production processes of ornamental stone processing companies in the city of Manaus. However there is a big problem in the process of cutting, polishing and finishing of raw materials such as marble and granite, because they generate large amounts of waste such as dust and mud, formed in the processing and discarded inappropriately result in significant environmental impacts since they contribute to the accumulation and damaging dispersal in air, water and soil solids. The data serve as a warning to the government and the generators to heed as to comply with the legislation that deals with the disposal of solid waste sanitary appropriate, in addition to exposing the need for educational and environmental policies in these processes work.The processing sector ornamental stone is experiencing a significant growth in the global context. Through this study aims to present a qualitative analysis of the impacts on the physical and anthropogenic resources generated in the production processes of ornamental stone processing companies in the city of Manaus. However there is a big problem in the process of cutting, polishing and finishing of raw materials such as marble and granite, because they generate large amounts of waste such as dust and mud, formed in the processing and discarded inappropriately result in significant environmental impacts since they contribute to the accumulation and damaging dispersal in air, water and soil solids. The data serve as a warning to the government and the generators to heed as to comply with the legislation that deals with the disposal of solid waste sanitary appropriate, in addition to exposing the need for educational and environmental policies in these work processes. 


2021 ◽  
Vol 940 (1) ◽  
pp. 012053
Author(s):  
A D Wicaksono ◽  
D Agustina ◽  
C Meidiana

Abstract Cleaner Production (CP) practices comprised environmental strategy perpetually applied in the production, processes, and services to bolster efficiency, safety, and environmental friendliness. Combining with the mindset of sustainable stocks and resources, this exercise of cleaner production provides advantages of minimum toxic wastes and residues. In this study, we prioritize this practice to be applied in the aluminum industry, of which cleaner production action has not yet been employed. This study aimed to assess the application of cleaner production in the aluminum industry. The method used is assessing cleaner production using the criteria of raw materials, production processes, water and wastewater, energy use, good housekeeping, solid waste and gas, human resources, and environmental performance. The assessment results of the cleaner production application indicate that the Mandiri industry type is generally at level 2 with a frequency of 13 industries. In general, SMAR’S is at level 3 with a frequency of 11 industries, and in the BLK industry, it is at level 2 with 11 industries. These results can be used as a recommendation for the government to increase cleaner production in the Jombang Regency.


2014 ◽  
Vol 6 (2) ◽  
pp. 1
Author(s):  
Saibatul Hamdi

The purpose of this research is to know the mechanical strength of gypsum board by utilizing waste sawn wood. Raw materials used consist of flour, gypsum,wood particles, boraks and kambang (Goniothalamus sp), wood tarap (Artocarpus elasticus REINW) and lua (Ficus glomerata ROXB). Wood particle 40 mesh and 60 mesh, concentrations boraks of 1 and 2 and the percentage particles of gypsum sawn timber is 300, 400 and 500%. The results showed that the average value Modulus of Rufture (MoR) in lua wood ranges from 12.55 – 14,47 kgcm2, wood kambang 25.10-31,11 kgcm2 and wood tarap 19.20- 24,18 kgcm2. As for Modulus of Elasticity (MoE) on the lua 1129,80- 2092,70 kgcm2, wood kambang 2512,37-3971,32 kgcm2 and tarap 2050,63-2691,09 kgcm2. Gypsum board are mechanical properties do not meet quality standards created SNI 03-6434-2000.Keywords: sawdust, lua, kambang, tarap, gypsum, mechanical


2019 ◽  
Vol 5 (1) ◽  
pp. 54
Author(s):  
Siti Norida Wahab ◽  
Nazura Mohamed Sayuti ◽  
Azimah Daud

The purpose of this study is to provide an understanding of the factors influencing green warehouse practices (GWP) in the Malaysian warehouse industry. Both stakeholder theory (ST) and institutional theory (IT) act as the foundation in developing the theoretical framework. Six factors were identified resulted from preliminary data gathering and an extensive literature review for constructing the model. The sample size consists of 226 respondents with the acceptance rate of 89 per cent. The findings revealed that customer demand, owner support, employee involvement, top management commitment, industry competition, and governmental pressure are positively associated with GWP. Based on the findings, warehouse companies and relevant authorities in Malaysia should focus on the importance of GWP towards becoming more competitive in the global market. The study provides a theoretical gap by proposing a valuable implication to scholars and practitioners in promoting sustainable industrial development which aligns with the government national agenda.


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