Design and Analysis of a Hammer Mill Machine in High-Efficacy Recycle Process
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Improvement on the Design,Construction and Testing of Hammer Mill
This paper presents the result of work carried out in improving the design, construction and testing of hammer mill by addressing some lapses associated with the design and construction of the existing ones. These improvement involves redesigning and construction of the hammer mill beater, hammer mill chamber, redesigning and construction of the hammer mill shaft, incorporating a gasoline engine directly to the hammer mill beater thereby providing the means of varying the speed of the hammer mill, replacement of the electric motor with a gasoline engine and (multi-functionality of the improved machine in processing many grains such as maize, millet, guinea corn and even dried cassava.
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This research designed, fabricated and tested a direct drive electric powered hammer mill machine. A 3 HP electric motor with speed of 1800 rpm was used to power the mill. The fundamentals of machine design, mechanics of machine and basic workshop technology were applied in manufacturing the mill. The calculated design values for maximum centrifugal force of the beaters mounted on the rotor and the maximum machine shaft diameter of the mill are 27 KN and 12 mm respectively. The working principle of the mill is based on repeated combined hammers (beaters) impacts and collisions of the materials being milled with the housing of the milling compartment. Tests were carried out on the mill using dry maize, dry millet, dry stock fish and the combination of dry maize, dry millet and dry stock fish as samples to determine the mill productivity and milling efficiency. In determining the productivity and milling efficiency of the mill, the initial masses of the samples were made equal. The d...
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Crushers are needed in a lot of industries for the sole purpose of size reduction. They are invaluable machines in laboratories (whether for institutions, government or private owned), mining and construction industries. Locally available machineries that are effective and affordable are very scarce. This has pushed some workers around the country to crush stone using crude materials and manual labour, neglecting the hazards involved so as to meet the demand of the various sectors. A hammer mill has been designed with due considerations to standard design requirements and cost to cater to this need. The power required to deliver the through put efficiency of the machine was determined to be 5,480W. The rotor speed is obtained as 1289.1 rpm. The major factors considered for the material selection are the mechanical properties, wear of materials, environmental properties, fabrication properties and cost. The actual capacity was obtained to be 301 kg/h after the performance evaluation of the machine, and it has a 98 % material recovery rate and 75.25 % machine efficiency. The machine has a production cost of ₦245,200.
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COMMENTS
The hammer mill is a power mill making use of a high-speed rotating disc, which is stationary to a number of hammer bars that move superficially by a centrifugal force. The machine was made ...
Our paper presents the hammer mill working process optimization problem destined for milling energetic biomass (MiscanthusGiganteus and Salix Viminalis). For the study, functional and constructive parameters of the hammer mill were taken into consideration in order to reduce the specific energy consumption. The energy consumption dependency on the mill rotor spinning frequency and on the sieve ...
Research Paper Open Access w w w . a j e r . o r g Page 139 Improvement on the Design,Construction and Testing of Hammer Mill. Hadi, Muhammad Ibrahim*1, Bawa, Mohammed Ahmed2, Dandakouta Habou3, Ahmed Misbahu4 and 5Kamtu, Peter Mu'ar. *1Assistant Lecturer, Department of Mechanical Engineering, Abubakar Tafawa ...
This paper presents a part of the studies done on the optimization of a hammer mill. working process using statistical modelling based on experimental results. The process of. optimizations ...
For the Improved Hammer Mill, the. iron filings contents were; 0.10 g, 0.08g and. 0.07 g per 15 kg, 20 kg, and 25 kg of flour of. corn milled with an average value of 0.083g. For guinea corn, the ...
the screen in the hammer mill determines the size of the output product. Also, Koch (2002) added that hammer-tip speed, hammer design and spacing, and the use of air-assist such as suction fan and cyclone separator affect the size output of the hammer mill. Whole corn is sometimes too large to be consumed by animals' ata young age.
This paper proposes a three-dimensional model of the hammer mill for high-efficacy recycle process. It has been established with modeling software (SolidWorks) to solve the inconvenience of the testing with a real machine by imported into Simulink. According to various types of wastes creating in huge amounts by every consumption around the word, an effective hammer mill machine is strongly ...
Low productivity and high electricity consumption are considered problems of the hammer mill, which is widely used in current feed production. In this paper, the mechanical properties of corn grain ground by a hammer mill were analysed, and the key factors affecting the performance of the hammer mill were determined. The single-factor experiment and three-factor, three-level quadratic ...
Figure 2. Grinder capacity with 1.25-inch screen for three feedstock varieties preprocessed using three hammer configurations, changing tip speed and addition of a new shear bar. For all feedstock varieties, the hammer 2 configuration operated at changing speed resulted in the greatest increase in grinder capacity. Display full size. Figure 3.
as speed of the mill and hammer width. there are many factors which affect the performance of a hammernd.ll; seme. of these are: motor horsepower, screen area, moisture content of the material. being reduced, kind of grain, location of feed intake, hammer tip and screen.
The laboratory size hammer mill was fabricated from locally available materials for crushing of minerals such as calcite, dolomite, limestone, granite and other materials of ... Published by European Centre for Research Training and Development UK (www.ea-journals.org) 12 ability to handle a wide variety of raw materials, ability to handle hard ...
The hammer mill was evaluated at different operating tip speeds of 28 m/s, 22 m/s, 19 m/s, and 14 m/s using parameters such as the milling capacity, milling efficiency, particle size output, and ...
The hammer mill was designed and constructed from locally available materials for grinding grain particles such as maize, millet, guinea corn and other coarse materials of cassava tuber, yam tuber, beans, etc. into small size enough to pass through the holes of the cylindrical sieve positioned beneath the hammer assembly. The grinding process is achieved by the use of a hammer in beating the ...
The objective of the present work is to design, fabricate and evaluate low-cost hammer mill Misr J. Ag. Eng., January 2019 -2- fFARM MACHINERY AND POWER during crushing grains and besting its performance with geometric mean diameter of crushed grain, machine productivity, consumed energy and cost.
Through cooperation study between Agricultural Engineering Research Institute (AEnRI) ... Estimation of the breakage and selection functions for comminution in hammer mill, paper presented in the 9th European Symposium on comminution, Albi, France: 393 - 401. [3] Deepak, G. (2008). Design and analysis of a horizontal shaft impact crusher ...
hammer mill with a double sieving device for grinding grains and agricultural products, using locally available materials. (Akash Santosh Pawar, 2021) focused on the manufacturing, design, and analysis of a hammer mill machine and its rotor assembly with a capacity of 200 kg/hr. (Ezurike et al., 2018) designed,
American Journal of Engineering Research (AJER) 2017 American Journal of Engineering Research (AJER) e-ISSN: 2320-0847 p-ISSN : 2320-0936 Volume-6, Issue-3, pp-139-146 www.ajer.org Research Paper Open Access Improvement on the Design,Construction and Testing of Hammer Mill.
Abstract and Figures. Hammer mills are widely used for material size reduction in food and feed industries. In this paper, a new hammer mill with separate sieving device has been designed and ...
Abstract. The project deals with the Manufacturing with Design and Analysis of Hammer Mill Machine and Rotor Assembly of Machine of Capacity of 200 Kg/hr. Which is due to providing the transmission power of 5 HP to the machine. In this project, the Hammer mill machine body structure, Angle Frame and foundation frame for machine is designed ...
The percentage recovery of fine porridge having size 1-2.5 mm ranges from 56.1 to 40.2. The percentage recovery of medium porridge obtained at different feed rates ranged from 35 to 26.6. From table 4.1 it is clear that the maximum percentage recovery of fine porridge was 56.5 at a 180 kg/h feed rate.
hammer mill was designed and constructed from locally available. materials for crushing and grinding grain such as m aize, and other. materials rice straw, cotton straw, broad b eans, etc. into ...
In research, a paper mill is a business that publishes poor or fake journal papers that seem to resemble genuine research, as well as sells authorship.. In some cases, paper mills are sophisticated operations that sell authorship positions on legitimate research, but in many cases the papers contain fraudulent data and can be heavily plagiarized or otherwise unprofessional.
A grain size reduction hammer mill for crushing corn (Zea mays L.) was designed depending on variety characteristics and by using computer aided design "ANSYS" software. Suitability of ...