The Washing of Demister Screens at Illovo
نویسنده
چکیده
This paper re-introduces the concept of in situwashing of wire mesh demister screens that are used in the separation of entrained juices from vapour streams. The use and the positioning of proprietary spray nozzles are explained and the visual observations are noted. screens tend to be roughly handled and suffer, in some cases, quite severe mechanical damage. With today's prices of screens being about RI 000 mm ? surface area they are expensive to replace. • Four units of labour and a supervisor are occupied in the removal and installation of screens on each stop day. Installation of a screen washing system In view of the problems and associated costs incurred during screen changes on a stop day, it was decided to investigate the use of in situ washing. As this was not a new concept, advice was sought throughout the e.G. Smith Group, but without any real success. The idea had not been fully exploited so it was decided to investigate further. FIGURE 1 Screen change programme 1986/87 season • : TO BE CHANGED 4 38 VESSEL
منابع مشابه
Blocking Short-Wavelength Component of the Visible Light Emitted by Smartphones’ Screens Improves Human Sleep Quality
Background: It has been shown that short-wavelength blue component of the visible light spectrum can alter the circadian rhythm and suppress the level of melatonin hormone. The short-wavelength light emitted by smartphones’ screens can affect the sleep quality of the people who use these devices at night through suppression of melatonin.Objectives: In this study, we examined the effects of co...
متن کاملModeling and Simulation of Modern Industrial Screens using Discrete Element Method (TECHNICAL NOTE)
With progress in mineral processing technologies, particle size classification equipment has also been changed to satisfy the needs of modern plants. Accordingly, design, manufacturing and utilizing of banana screens in mineral processing plants have led to increased screening efficiency at industrial scale. Banana screen is an important invention occurred in past decade which increases screeni...
متن کاملWomen with hereditary breast cancer predispositions should avoid using their smartphones, tablets and laptops at night
Breast cancer is the most common malignancy among women, both in the developed and developing countries. Women with mutations in the BRCA1 and BRCA2 genes have an increased risk of breast and ovarian cancers. Recent studies show that short-wavelength visible light disturb the secretion of melatonin and causes circadian rhythm disruption. We have previously studied the health effects of exposure...
متن کاملCan Light Emitted from Smartphone Screens and Taking Selfies Cause Premature Aging and Wrinkles?
Since the early days of human life on the Earth, our skin has been exposed to different levels of light. Recently, due to inevitable consequences of modern life, humans are not exposed to adequate levels of natural light during the day but they are overexposed to relatively high levels of artificial light at night. Skin is a major target of oxidative stress and the link between aging and oxidat...
متن کاملComparison of bronchial brushing, washing and forceps biopsies in diagnosis of bronchogenic carcinoma
Five hundred eighty patients underwent diagnostic flexible fiberoptic bronchoscopy: during June 1988 to March 1993 at the bronchoscopy center of Kerman university of medical sciences. Seventy six specimens were obtained from patients with bronchogenic carcinoma and 155 from patients with benign disease of the lung. The efficiency of brushing and washing techniques was compared with forceps b...
متن کامل