scholarly journals Improving the construction of grinding disk mill for producing fibrous semi-finished products

2021 ◽  
Vol 1047 (1) ◽  
pp. 012172
Author(s):  
A Yu Vititnev ◽  
Yu D Alashkevich ◽  
N G Chistova ◽  
R A Marchenko
Keyword(s):  
Disk Mill

The Combination Process between Disc-Mill and Distillation Evaporation in Producing Salt Diversification Products

2017 ◽  
Vol 862 ◽  
pp. 174-181
Author(s):  
Intan Baroroh ◽  
Bagiyo Suwasono ◽  
Ali Munazid
Keyword(s):  
Mineral Water ◽  
Solar Power ◽  
Sea Water ◽  
Coastal Communities ◽  
Combination Process ◽  
The Public ◽  
Salt Production ◽  
Liquid Salt ◽  
Disk Mill

ABSTRACT.Blue Economy concept began with the farming of Artemia salt. The industry of farmer’s salt was one of the pillars that supported the economy of coastal communities. At present, the perspectives of the public on an industrial salt production is less profitable and conducted by unskilled laborers. Nowadays, the farmer still used evaporation total method of sea water by solar power, where NaClwas ≤ 90% and residual brine. It is necessary to improve the salt production through combination between disk-mill and distillation evaporation technology to produce salt diversification product. The result of the combination process were refined salt with NaClthat was ≥ 90%, liquid salt with NaClthat was ± 60% and mineral water.

scholarly journals Performance of Disk Mill Type Mechanical Grinder for Size Reducing Process of Robusta Roasted Beans

2006 ◽  
Vol 23 (3) ◽  
Author(s):  
Sri Mulato ◽  
Sukrisno Widyotomo ◽  
Hadi Karia Purwadaria2
Keyword(s):  
Moisture Content ◽  
Product Quality ◽  
Key Words ◽  
Milling Process ◽  
Processing Method ◽  
Technical Parameters ◽  
Powder Product ◽  
Disk Mill ◽  
Coffee Powder ◽  
Grinding Machine

One of improtant steps in secondary coffee processing that influence on final product quality such as consistency and uniformity is milling process. Usually, Indonesian smallholder used "lumpang" for milling coffee roasted beans to coffee powder product which caused the final product not uniformed and consistent, and low productivity. Milling process of coffee roasted beans can be done by disk mill type mechanical grinder which is used by smallholder for milling several cereals. Indonesian Coffee and Cocoa Research Institute have developed disk mill type grinding machine for milling coffee roasted beans. Objective of this research is to find performance of disk mill type grinding machine for size reducing process of Robusta roasted beans from several size dried beans and roasting level treatments. Robusta dried beans which are taken from dry processing method have 13—14% moisture content (wet basis), 680—685 kg/m3 density, and classified in 3 sizes level. The result showed that the disk mill type of grinding machine could be used for milling Robusta roasted beans. Machine hascapacity 31—54 kg/h on 5,310—5,610 rpm axle rotation and depend on roasting level. Other technical parameters were 91—98% process efficientcy, 19—31 ml/ kg fuel consumption, 0.3—1% slips, 50—55% particles had diameter less than 230 mesh and 38—44% particles had diameter bigger than 100 mesh, 32—38% lightness was increased, 0.6—12.6% density was decreased, and solubility of coffee powder between 28—30%. Cost milling process per kilogram of Robusta roasted beans which light roast on capacity 30 kg/hour was Rp362.9. Key words : Coffee roasted, Robusta, disk mill, mechanical grinder, size reduction.

scholarly journals Penerapan Disk Mill Pada UMKM Anugerah Produksi Vitamin Unggas di Desa Sekarmojo Kecamatan Purwosari

2021 ◽  
Vol 4 (1) ◽  
pp. 53
Author(s):  
Djoko Hari Praswanto ◽  
Soeparno Djiwo ◽  
Mochtar Asroni ◽  
Lalu Mustiadi ◽  
Thomas Priyasmanu
Keyword(s):  
Community Service ◽  
Egg Production ◽  
Aluminum Foil ◽  
Production Costs ◽  
Poultry Meat ◽  
Poultry Eggs ◽  
Sales Process ◽  
Disk Mill ◽  
Vitamin Production

Poultry vitamins are one of the nutrients needed by breeders. This poultry vitamin serves to accelerate the growth of poultry, maintain the quality of poultry meat, improve the quality of poultry eggs, prolong poultry egg production and accelerate poultry egg production. One of the partners who was worked together with the ITN Malang team is engaged in the field of poultry vitamins production and wants to increase the turnover of poultry vitamin production. All the time, the price of poultry vitamins from factories is considered high enough so that farmers have objections to buying poultry vitamins from the factory. The community service team observed at the quality of poultry vitamins which are produced in the Purwosari area and will transfer technology to apply a disk mill in the production process which will be able to increase the production of poultry vitamins in good prices but with high quality also. In addition, the community service team will improve the packaging by used aluminum foil to avoid moisture and later will be given a logo to facilitate the sales process to breeders. After improved the packaging, it has expected can be freely marketing with the general standardization of poultry vitamins. So that farmers can get cheap and good quality poultry vitamins. From the results of the activities carried out, it was found that a disk mill machine with a capacity of 150 kg / hour. It if the production of 500 kg takes 3 hours with one workers person. So that the partners can save time and production costs. So that the profits obtained now increase 25% from previous profits. Meanwhile the packaging used by the team partners now used aluminum foil so that the product looks more attractive and is able to hold the product dry.

scholarly journals Optimization of nanostructured/nano sized rice husk ash preparation

2020 ◽  
Vol 17 (3(Suppl.)) ◽  
pp. 0953
Author(s):  
Medhat Mostafa ◽  
Hamdy Salah ◽  
Amro B. Saddek ◽  
Nabila Shehata
Keyword(s):  
Particle Size ◽  
Rice Husk ◽  
Amorphous Silica ◽  
Particle Shape ◽  
Rice Husk Ash ◽  
Loss On Ignition ◽  
Shape Distribution ◽  
Disk Mill ◽  
Grinding Time

The objective of the study is developing a procedure for production and characterization of rice husk ash (RHA). The effects of rice husk (RH) amount, burning/cooling conditions combined with stirring on producing of RHA with amorphous silica, highest SiO2, lowest loss on ignition (LOI), uniform particle shape distribution and nano structured size have been studied. It is concluded that the best amount is 20 g RH in 125 ml evaporating dish Porcelain with burning for 2 h at temperature 700 °C combined with cooling three times during burning to produce RHA with amorphous silica, SiO2 90.78% and LOI 1.73%. On the other hand, cooling and stirring times affect the variation of nano structured size and particle shape distribution. However, no crystalline phases were found in RHA in all cases. Results proved that the Attritor ball mill was more suitable than vibration disk mill for pulverizing nano structured RHA with 50% of particle size (D50) lower than 45 mm and 99 % of particle size (D99) lower than 144 mm to nanosized RHA with D50 lower than 36 nm and D99 lower than 57 nm by grinding time 8.16 min to every 1 g RHA without changes in morphousity of silica.

scholarly journals Pemberdayaan Masyarakat Tani Melalui Usaha Mandiri Tepung Beras di Nagari Bukit Tandang Kec. Bukit Sundi Kab. Solok

2018 ◽  
Vol 2 (2) ◽  
pp. 61
Author(s):  
Ifmalinda Ifmalinda ◽  
Ayendra Asmuti ◽  
Moh. Agita Tjandra ◽  
Azrifirwan Azrifirwan ◽  
Iriwad Putri
Keyword(s):  
Working Hours ◽  
Weather Conditions ◽  
Rice Flour ◽  
Rice Production ◽  
Group Data ◽  
Crop Development ◽  
West Sumatra ◽  
Disk Mill ◽  
Wet Weight ◽  
Fixed Quantity

ABSTRAK: Nagari Bukit Tandang khususnya Jorong Parit merupakan daerah sentra pengembangan tanaman pangan khususnya tanaman padi di Kabupaten Solok dan Kabupaten Solok juga merupakan sentra produksi padi dan beras di Propisinsi Sumatera Barat yang terkenal dengan beras Soloknya. Kondisi dengan penen padi dan produksi beras yang melimpah ini menggambarkan bahwa daerah Nagari Bukit Tandang relatif potensial untuk dikembangkan sebagai distributor dan usaha mandiri tepung beras di Kecamatan Bukit Sundi dan Kabupaten Solok. Progam pengabdian masyarakat ini dilakukan dengan metode andragogi. Metode ini dilakukan dengan cara pemberian materi dengan penyuluhan dan melakukan praktek secara bersama-sama.Kegiatan yang dilakukan adalah 1) penyuluhan dan praktek penggunaan alat penepungan, 2) penyuluhan dan praktek penggunaan alat pengering semi mekanis menggunakan energi tenaga surya, 3) penyuluhan dan praktek penggunaan plastik kemasan dan alat sealer. Kegitan ini dilakukan pada kelompok tani Harapan Jaya. Data diperoleh dari hasil penepungan, pengeringan secara manual dan menggunakan alat. Proses penepungan dengan disk mill mampu memproduksi tepung sehari 20-30 kg/hari (delapan jam kerja/hari) berat basah tepung beras. Sedangkan menggunakan lesung dapat memproduksi tepung beras 5-6 kg/hari (delapan jam kerja/hari). Hasil pengeringan tepung dengan rumah pengering dapat meningkatkat kualitas tepung lebih bersih dengan kuantitas tepung yang tetap, apabila dibandingkan dengan pengeringan yang dilakukan di para-para menggunakan talam. Satu hari rumah pengering dapat mengeringkan tepung 2- 3 kali. Jika cuaca cerah rumah pengering dapat mengeringkan tepung 4 kali, sedangkan kondisi cuaca tidak cerah, hanya mampu mengeringkan tepung 2 kali penepungan. Rata-rata rumah pengering mampu mengeringkan tepung dalam sehari 10kg/hari. Sedangkan menggunakan para-para dan talam hanya mampu memproduksi 4 kg/hari.Kata kunci: Teknologi Pertanian, Tepung Beras, Pengemasan, Bukit Sundi Empowering Farmers Through Business Independent Rice Flour in Nagari Bukit Tandang Kec. Bukit Sundi Kab. SolokABSTRACT: Nagari Bukit Tandang specifically Jorong Parit is a center of food crop development especially rice plants in Kabupaten Solok, also the center of rice and rice production in West Sumatra Province which is famous for its Solok rice. This condition with abundant penen rice and rice production illustrates that the Nagari Bukit Tandang area is relatively potential to be developed as a distributor and independent business of rice flour in Kecamatan Bukit Sundi and Kabupaten Solok. This community service program is carried out using the andragogy method. This method is carried out by giving material with counseling and practicing together. The activities carried out were 1) counseling and practice of using shading tools, 2) counseling and practice of using semi-mechanical dryers using solar energy, 3) counseling and practice of using plastic packaging and sealer tools. This activity was carried out on the Harapan Jaya farmer group. Data is obtained from the results of shading, drying manually and using tools. The process of holding with a disk mill is able to produce 20-30 kg / day (eight hours of work / day) flour starch wet weight of rice flour. While using mortar can produce rice flour 5-6 kg / day (eight working hours / day). The results of drying the flour with the dryer house can increase the quality of the flour cleaner with a fixed quantity of flour, when compared with the drying carried out whith use tray. One day drying house can dry flour 2-3 times. If the weather is sunny, the drying house can dry the flour 4 times, while the weather conditions are not bright, it is only able to dry the flour 2 times the sinking. The average drying house is able to dry flour in a day of 10kg / day. While using tray can only produce 4 kg/day.Keywords: Agricultural Technology, Rice Flour, Packaging, Bukit Sundi

scholarly journals DETERMINATION OF DESIGN PARAMETERS OF A STEP DISK MILL

2021 ◽  
Vol 6 (12) ◽  
pp. 98-105
Author(s):  
I. Semikopenko ◽  
V. Voronov ◽  
S. Latyshev ◽  
V. Sevost'yanov ◽  
L. Rybak ◽  
...  
Keyword(s):  
Volumetric Flow Rate ◽  
Throughput Capacity ◽  
Design Parameters ◽  
Technological Parameters ◽  
Crushed Material ◽  
High Rotational Speed ◽  
Working Chamber ◽  
Working Zone ◽  
Disk Mill ◽  
The Impact

The calculation of the design parameters of a disc mill equipped with a feeder made in the form of a conical hopper is given. For shredders of the disintegrator type, it is very important to ensure the uniformity of loading of the crushed material of the working zone of active impact on particles. In addition, the most important factor is the throughput capacity of all sections of the grinding plant. The throughput should be determined by the design and technological parameters of the working chamber of the mill. Its overload can lead to a blockage of the working chamber, and insufficient throughput will negatively affect the intensity and effectiveness of the impact on the particles of the material. For example, insufficient concentration of particles in the secondary zone of the grinding chamber leads to a decrease in the efficiency of mutual abrasion. The article attempts to determine the design and technological parameters in the loading and accelerating parts of the disk mill. At the same time, it is necessary to coordinate the throughput of the disk spreader and the volumetric flow rate of the material particles flowing from the hopper. In this case, it is advisable to take into account that as a result of a rather high rotational speed and the size of the initial particles, with the wrong height of the radial blade of the spreader, material particles can roll over the radial blades, which leads to a delay of the material in the zone of the spreading disc. Therefore, it is necessary to determine the calculation formulas for finding the required height of the radial blade of the spreading disc, depending on the size of the initial particles. The formula demonstrates that the height of the separating blade depends on the particle size, the speed of rotation of the disks and the distance to the point of meeting of the particle with the radial blade.

Comminution effects on mineral grade distribution

2020 ◽  
Author(s):  
Gabriele Baldassarre ◽  
Oliviero Baietto
Keyword(s):  
Grain Size ◽  
Froth Flotation ◽  
Mining Operations ◽  
Thin Sections ◽  
Grade Distribution ◽  
Important Trend ◽  
Disk Mill ◽  
Definition Of ◽  
Quality Material ◽  
Size Threshold

<p>Every mining operations is followed by a beneficiation process aimed to deliver quality material to the transformation industry. Mainly, in mineral processing comminution and grinding of extracted ore, are crucial operations for the following separation steps in order to obtain valuable minerals from gangue.</p><p>Comminution is the most energy consuming phase and the quality of the results is strictly related to the characteristic of the material under treatment.</p><p>A preliminary study has been performed in order to understand the crushing behaviour of a mixed sulphide ore, containing galena and sphalerite, and the distribution of the two target minerals among the different sized products of the process.</p><p>Ore samples have been examined and characterized by means of thin sections observation and SEM analyses for the determination of the free grain size, while XRD quantitative analyses have been performed for the definition of the grades.</p><p>The selected crushing circuit comprises lab-scale impact crusher, jaw crusher, disk mill and rod mill. For each stage of the process products below the free grain size threshold have been collected and particle size analyses have been carried out.</p><p>Comminution products were divided in dimensional classes suitable for flotation separation, ranging between 0.250 and 0.075mm and XRD analyses showed a variable mineral grade distribution varying with the reduction in dimension of the products.</p><p>This important trend should be considered for further investigation related to an efficient froth flotation separation.</p>

scholarly journals Peningkatan Kuat Tarik Bioplastik dengan Filler Microfibrillated Cellulose dari Batang Sorgum

2020 ◽  
Vol 18 (2) ◽  
pp. 37
Author(s):  
Yuli Darni ◽  
Lia Lismeri ◽  
Muhammad Hanif ◽  
Sarkowi Sarkowi ◽  
Dita Synthauli Evaniya
Keyword(s):  
Tensile Strength ◽  
Mechanical Treatment ◽  
High Energy ◽  
Microfibrillated Cellulose ◽  
Weight Basis ◽  
Filler Concentration ◽  
Mechanical Method ◽  
High Energy Milling ◽  
Stirring Time ◽  
Disk Mill

Abstrak. Penelitian ini membahas tentang pengaruh rasio pati terhadap kitosan (dalam basis berat) dan konsentrasi microfibrillated cellulose sebagai filler dalam pembuatan bioplastik menggunakan pati sorgum, kitosan dan gliserol. Dalam penelitian ini, rasio pati terhadap kitosan yang divariasikan adalah 10:0, 9,5:0,5, 8,5:1,5, 7,5:2,5, 6,5:3,5, 5,5:4,5 (gr/gr). Microfibrillated cellulose sebagai filler disintesis dari batang sorgum dengan metode semimekanis. Perlakuan kimia diawali dengan delignifikasi batang sorgum dengan KOH 4% pada temperatur 80oC selama 1 jam untuk menghilangkan lignin. Setelah itu dicuci dan dipucatkan (bleaching) sebanyak dua kali menggunakan H2O2 6% pada suhu 70oC. Serbuk batang sorgum yang sudah kering dilanjutkan dengan perlakuan mekanis yaitu dimasukkan ke dalam disk mill  selama 90 menit dan dilanjutkan dengan high energy milling (HEM) untuk mengecilkan ukurannya sampai dengan rata-rata 4-8 µm. Filler ditambahkan, dan konsentrasinya (dalam basis berat) divariasikan dari 0, 1, 2, dan 3 %. Pati dan kitosan berukuran 63 mikron (lolos ayakan), waktu  pengadukan selama 35 menit pada kecepatan 375 rpm, dan penambahan 10% berat gliserol sebagai plasticizer dijaga konstan. Hasil terbaik pada penelitian ini diperoleh pada formulasi 8,5:1,5 (gr/gr). dan konsentrasi filler 3%. Produk bioplastik ini memiliki kuat tarik 11,64 MPa, persen perpanjangan 10,98%, modulus Young 105,96 MPa, densitas 0,915 gr/ml, dan penyerapan air  38,3%. Kata kunci: bioplastik, gliserol, kitosan, microfibrillated cellulose, sorgum. Abstract. The Improving of Bioplastic Tensile Strength with Microfibrillated Cellulose Filler from Sorghum Stem. This study discusses the effect of starch on chitosan ratio (in weight basis) and also the concentration of microfibrillated cellulose as a filler in the preparation of bioplastics using sorghum starch, chitosan, and glycerol. In this study, the ratio of starch to chitosan varied was 10:0, 9.5:0.5, 8.5:1.5, 7.5:2.5, 6.5:3.5, 5.5:4,5 (gr/gr). Microfibrillated cellulose as filler was encouraged from the sorghum stem by the semi-mechanical method. The delignification of sorghum stem initiated chemical treatment with a 4% KOH solution on 80oC for 1 hour to remove lignin. Bleaching is done after delignification using 6% H2O2 at 70oC. The dried sorghum powder is further followed by mechanical treatment that is put into disk mill for 90 minutes and continued with high energy milling (HEM) to reduce its size to an average of 4-8 µm. The filler is added, and the concentration (on a weight basis) varies from 0, 1, 2, and 3%. Starch and chitosan measuring 63 microns (sieve pass), stirring time for 35 minutes at a speed of 375 rpm, and the addition of 10% by weight of glycerol as a plasticizer is kept constant. The best results in this study were obtained in formulations 8.5:1.5 (gr/gr) and 3% filler concentration. This bioplastic product has 11.64 MPa tensile strength, 10.98% elongation, 105.96 MPa Young moduli, 0.915 gr/ml density, and 38.3% water uptake. Keywords: bioplastic, chitosan, glycerol, microfibrillated cellulose, sorghum.Graphical Abstract 

scholarly journals Pengaruh Variasi Penambahan Abu Ampas Tebu dan Serat Ampas Tebu Terhadap Sifat Fisis dan Mekanis Pada Mortar

2020 ◽  
Vol 24 (3) ◽  
pp. 118
Author(s):  
Muhammad Nursani ◽  
Pulung Karo Karo ◽  
Yanti Yulianti
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Energy Dispersive ◽  
X Ray ◽  
Disk Mill ◽  
Scanning Electron

Penelitian tentang pengaruh variasi penambahan abu ampas tebu dan serat ampas tebu terhadap sifat fisis dan mekanis pada mortar telah dilakukan. Bahan-bahan yang digunakan dalam penelitian ini antara lain abu ampas tebu, serat ampas tebu, semen portland, CaCl dan air. Abu ampas tebu diperoleh dari pembakaran ampas tebu pada suhu 700 ˚C selama 2 jam. Serat ampas tebu diperoleh dari pencacahan ampas tebu menggunakan mesin disk mill dengan ayakan berukuran 5 mm. Perbandingan semen, abu ampas tebu dan serat ampas tebu yang digunakan yaitu sampel A (90%:0%:10%), sampel B (85%:5%:10%) dan sampel C (80%:10%:10%), dengan penambahan CaCl sebesar 5% dari massa total dan 250 ml air. Pengujian yang dilakukan yaitu uji fisis (daya serap air dan kerapatan) dan uji mekanis (kuat tekan, kuat lentur dan kuat tarik belah) serta karakterisasi scanning electron microscope-energy dispersive x-ray spectroscopy (SEM-EDS). Mortar sampel A masuk dalam kategori mortar tipe S dengan kuat tekan sebesar 132,28 kg/cm2, mortar sampel B masuk dalam kategori mortar tipe M dengan kuat tekan sebesar 176,16 kg/cm2 dan mortar sampel C masuk dalam kategori mortar tipe S dengan kuat tekan sebesar 170,68 kg/cm2, secara keseluruhan sampel C memiliki nilai yang lebih tinggi baik secara fisis maupun mekanisnya, mikrostruktur sampel C lebih baik dibandingkan sampel A dan B karena memiliki butiran yang lebih kecil serta terdapat banyak gumpalan yang menyebabkan ukuran pori mengecil sehingga kerapatannya meningkat, penambahan abu ampas tebu meningkatkan jumlah unsur oksigen yang dapat menambah kekuatan mekanis mortar.

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