زبان را انتخاب کنید:
ST تجهیزات & فناوری LLC (STET) رمان را توسعه داده است, patented electrostatic belt separator that has been demonstrated on the commercial-scale in the processing of industrial minerals and in recycling of coal combustion fly ash.
Electrostatic separation technology has been studied over 100 سال. در حقیقت, the first patented food use of electrostatic separation of wheat middlings was filed in 1880. Ongoing research with the technology shows promise in creating value from waste stream byproducts of current production processes, such as plant oil production or animal (including fish) پردازش.
Simply put, the STET separator works based on differences in surface chemistry. In some cases, these separations would not be possible using particle size or density alone. STET’s separators take advantage of “Tribo-charging” (شکل 1) which occurs rapidly within the equipment.
شکل 2 illustrates how particles are fed by one of several feed ports into the separation zone, which is the gap between horizontal electrodes (< 13میلی متر [0.5"]). Voltage (typically 12kV) is applied across this narrow gap to create a strong electric field. Particles are moved through this separation zone by a proprietary continuous loop, open mesh belt operating at high speed (4-20خانم [13-65فوت / ثانیه]).
Within the separation zone, the proprietary design of the rapidly moving continuous belt performs several functions simultaneously (شکل 3).
It creates a high turbulence zone between the electrodes, ترویج tribo شارژ. This results from repeated particle-to-particle collisions, keeping materials charged within the separator and eliminating the need for an outside pre-charging system. Lastly, the movement of the belt sweeps fine particles from electrodes, maintaining their performance, and facilitates separate product and by-product collection.
The STET tribo-electrostatic belt separator has shown the ability to “beneficiate” (improve the properties of) a variety of minerals and fly ash around the globe and has demonstrated application for the processing of a growing number of food and feed materials.
One example of this is with the processing of Whitefish Meal which was commercially obtained, پودر, and tested through our pilot-scale separator pictured in Figure 4.
نتایج
The pilot tests were conducted on 2 tonnes of commercially acquired Whitefish Meal that were milled prior to processing through our tribo-electrostatic separator. Results for Whitefish Meal indicate protein enrichment and significant reduction of ash in a single pass, as shown here.
| پایلوت نتایج کارخانه | |||
|---|---|---|---|
| خوراک | E1 | E2 | |
| عملکرد توده | 39.3% | 60.7% | |
| رطوبت | 2.5% | ||
| خاکستر | 12% | 6.1% | 15.2% |
| پروتئين | 81.1% | 89.8% | 77.6% |
اطلاعات در صفحه زیر مربوط به درجه محصول (به عنوان جلوگیری از استخراج توسط پروتئین wt. %) به عملکرد توده.
می توان آن را از این داده ها است که تجارت کردن بین دو پارامتر وجود دارد اشاره کرد. با این حال, ما قادر به دستیابی به یک 10% (نسبی) افزایش پروتئین و بسیار نزدیک 50% کاهش خاکستر در جریان محصول در یک پاس واحد, و بدون بهینه سازی بیشتر.
خوراک اندازه ذرات مواد با پردازش در hammermill به اندازه نشان داده شده در صفحه بعدی تنظیم شد.
STET’s separators are capable of throughputs for most food and feed materials of about 10-15 تن در هر ساعت (بسته به تراکم) هنوز مصرف تنها 3-4 kWh برق. این فرایند اجازه می دهد تا جداسازی به آب و مواد شیمیایی رایگان, بدون نیاز به ورودی حرارتی و بدون جریان ضایعات تولید شده.
این روش جدایی می تواند منجر به تولید حجم بالا شود, پروتئین ماهی با کیفیت بالا به عنوان یک عنصر در فرمولاسیون خوراک از زباله های پردازش غذاهای دریایی.
این محصول از پردازش ماهی نشان می دهد وعده در ارائه پروتئین با ارزش و مواد معدنی به همراه و یا حیوانات تجاری, کمک به حمایت از تقاضای رو به رشد پروتئین رژیم غذایی رانده شده توسط رشد جمعیت.
