Lubisol Engineering: early detection of hot spots and rat holes in silica crowns

  Furnace technology

Lubisol Engineering Co. has been engaged closely with the problems of thermal insulation, hermetic sealing and hot repair of silica crowns for more than 30 years, studying case histories of rat holes and gathering information about more than 100 glass furnaces.

Lubisol
Lubisol offers an easy and simple solution of the rat-hole problem in silica crowns
Rat holes are caused by condensation corrosion in loose joints of silica crowns. Regardless of the improved quality of the silica bricks they are still a problem for the glass industry worldwide.
The experience of Lubisol shows that the early detection of hot spots in the crown may help in the early detection of rat holes enabling an easy early hot repair.
Condensation corrosion in the silica crown is a very slow process taking at least 6-12 months before the hot spot is converted into a rat hole. The regular inspection of the crown by measuring the cold face temperatures in different areas of the crown may help for early detection of the hot spots. The recommended inspection period is once per month. The cold face temperatures of silica crowns with standard light silica insulation are usually between 180 and 220°C. In cases when this temperature becomes 250-300°C this may be an early indication for a hot spot formation. By removing the thermal insulation in this area one can make a hot repair by patching the crown with Lubisol S-Seal and this will stop the corrosion process. The action is easy and simple and this may reduce to a great extent the formation and further enlargement of the rat-hole.
Lubisol had promoted this simple method among its clients with great success. In all cases the regular monthly inspections and reports have contributed for achieving a long service life of the silica crowns where such inspections have been regularly applied.

Channel: Furnace technology

52 Total news items for this channel since 1996
Next »
Page  1 2 of 2 
latest Order by:

GlassOnline News by Channel

20140408031915refractory

2017-02-21
HarbisonWalker International (HWI), the largest supplier of refractory products and services in the U.S., announced...

Hornglasskeyvisual0514blowrez

2017-02-20
Horn Glass Industries AG has recently received its latest order from the Osotspa Group, Siam Glass Plant in Thailand...

2017-02-10
Mass Flow ONLINE B.V, the e-commerce channel of Bronkhorst High-Tech B.V., has announced the release of two new models...

GroupPhotoSeminar2015

2017-01-11
Glass Service (GS) has set the 14th International Seminar on Furnace Design – Operation and Process Simulation, for 2...

AllumetteVOA06012017

2017-01-10
Verallia has invested more than €46m in one year to modernize VOA’s 2 furnaces, emblematic of the Group’s glassmaking ex...

201612271706041

2017-01-09
On 6th December 2016 Horn Glass Industries AG held its first safety engineering seminar at its headquarters in...

ProBend

2016-12-12
Glaston has closed a significant deal with Glas Gasperlmair located in Austria. The deal includes Glaston’s ProBend b...

Landglass

2016-10-27
Landglass presented its core range of products glass at Glasstec 2016 with particular focus on the Cyclone series...

2016-10-13
The Sorg group, firmly established in the glass processing market, is looking at ways to both save energy costs, and...

Atlas

2016-10-07
American Glass Research has announced the publication of a new book entitled Color Atlas of Stones in Glass.

Falorni2xGOL

2016-10-05
During glasstec 2016 the glassOnline team spoke to Andrea Zucconi, Sales Director at Falorni Tech, about this new brand...

Schermata20161004a122525

2016-10-05
When Stoelzle Flaconnage held its official furnace inauguration at the end of September, a number of guests – including ...

Imagesj.

2016-10-03
The new batch plant for Thai Malaya Glass is being built for furnace SB4 with a capacity of 300 t/d and ready for...

Lubisol

2016-08-24
Lubisol has created a completely new and more efficient insulating material suitable to partially replace the light...

DSC04067

2016-07-20
Wall Colmonoy has announced the 2016 Fall Session of its Modern Furnace Brazing School.

Glassbottles

2016-07-01
Air Products has recently commissioned and brought onstream its second integrated oxy-fuel solution for Techpack...

2016-06-17
Stuart Hakes, FIC UK, won the Michael Garvey Award for best paper at the recent Furnace Solutions conference, for his...

1603racingteamG

2016-05-12
Instead of the usual oversize glass laminates, a racing car chassis has been hardened in sedak’s pressure chamber, part ...

2016-04-08
Glass manufacturing expert, C. Philip Ross has released two DVDs, covering Air Emission Issues in Glass Melting...

FurnacerelinePPGFresno

2016-04-07
PPG has announced that its Fresno, California glass plant which had been idled for a furnace reline and refurbishment,...

Saintgobain

2016-03-18
Saint-Gobain Glass, one of the world leading glass production companies, is currently testing HyGear’s Hy.REC® system in...

2016-03-17
John Tierney, Operating Director of TuffX Glass says “It’s perfect timing,” as his third Glaston furnace, the FC500™ is...

Rotork

2016-02-15
Following extensive testing, leading glass container manufacturers are specifying the Rotork CMA electric actuator for...

20150706025824HyGearlogo

2016-02-11
HyGear has expanded its product portfolio with nitrogen and oxygen supply by on-site generators.

373large

2016-01-26
Super Toughened Glass Ltd of Park Royal, London is currently installing the largest Glaston FC500™ tempering furnace to ...

2015-11-24
Linn High Therm, a family-owned business founded by Horst Linn in 1969 and headquartered in Bavaria, Germany,...

ScreenShot20151111at104533pm

2015-11-12
Vision 800 is the new oscillating tempering furnace equipped with a high efficiency convection system for super low-e...

20150520093353horn

2015-07-29
Horn Glass Industries has recently secured an order for a 250 tonnes per day (tpd) float line and 50 tpd container line...

2015-05-21
Horn has completed the installation of a furnace at Turkish container glass company Gürallar Cam Ambalaj. The ...

2015-03-20
In order to ease the current burden of prohibitively high production costs, the Industrial Association of Sri Lanka...

Vidrala

2015-02-20
A video of Vidrala’s record-breaking glass furnace reconstruction at Crisnova Vidrio plant is now available. The work t...

2015-02-10
Horn has supplied a low energy-consuming furnace with low emissions to Pochet du Courval, which will, thanks to the new...

Lubisol

2015-01-22
Lubisol crown insulation is, according to its manufacturers Lubisol Engineering, offering significant savings of energy...

Nampak

2014-12-12
Nampak’s new ZAR 1.2 billion energy-efficient glass furnace will increase the plant’s capacity to 295,000 tons per ann...

Vidroporto

2014-12-05
Vidroporto has started operation of its third furnace at its industrial complex in Porto Ferreira, São Paulo. With the ...

Electroglass

2014-11-19
UK-based Electroglass will be among the exhibitors of Glasstech Asia, taking place 25 and 26 November in The...

2014-09-12
Horn has announced that it has supplied a regenerative end-fired furnace to Nampak Glass, along with the entire...

Dynamic

2014-09-02
Melting glass is an expensive and energy-intensive process. Some 35% of glass manufacturing costs are accounted for by...

LogoFlammaTec

2014-05-29
Burner manufacture FlammaTec, spol. s r.o. (Czech Republic) has opened a new subsidiary office at Cottbus, Germany, in...

2014-05-08
Turkish Gürallar Group is investing in a new plant to produce container glass, and has placed an order with Horn for ...

Zignagovetro

2014-04-28
Zignago Vetro has announced that work will be carried out on two of its furnaces this October and in April 2015,...

Steklarna

2014-04-08
Steklarna Hrastnik has announced that it intends to invest in the reconstruction of its B-furnace on its special...

52 Total news items for this channel since 1996
Next »
Page  1 2 of 2 

Our Glass Magazines & Annual Guides Read online free of charge

Glass-Technology International
 
Glass Machinery Plants & Accessories
 
World Glass Directory
 
Flat Glass World Directory
 
Return to top

Powered by GlassOnline Logo

Copyright © Smartenergy S.r.l. 1996-2017 - All rights reserved

Smartenergy S.r.l. - publications@glassonline.com - Cookie policy
Registered office: Via Antonio Gramsci, 57 - 20032 Cormano (MI), Italy
Company registry - Milan, REA No.: MI-2022277 | Share capital: € 10,000 | P.IVA/VAT No.: IT 08386450962