Boilers & Burners

Production efficiency and energy cost control – two factors that are central to aluminium anodising and both at the heart of the Lanemark process gas burner design.

Lanemark TX tank heating burner systems are used extensively to heat the wide range of liquids found in the industry, irrespective of tank configuration or size. The ‘point of use’ design not only maximises temperature control accuracy but also offers markedly greater efficiency compared to systems based on centralised steam or hot water boilers, and also significant energy savings in comparison to steam, hot water, thermal oil or electrical alternatives.

Each burner system operates into a submerged tubular heat exchanger which delivers maximum heat to the process liquid while keeping intrusion into the tank space to an absolute minimum.

The immersion tube heat exchangers can be fabricated from a variety of materials including mild and stainless steels as required by the individual process chemical. Combustion gases are extracted by an exhaust fan – often just one is required per group of tanks – minimising the number of exhaust flues needed for each installation.

The design opportunities that are arising from developments in plastic rotational moulding techniques signal a step forward for one of the more ‘traditional’ manufacturing processes.
The industry is now looking to take full advantage of new raw material options and enhanced equipment designs – a scenario in which Lanemark gas process burner systems have much to offer.
This progress – perhaps seen best where high strength and durability of rotational moulded products is required – is closely linked to the provision of efficient process heating, and Lanemark International can point to a growing list of customers in the sector who are gaining from the company’s forced draught (FD) gas burner technology.
As new production opportunities are reflected in the need for high quality processing techniques, the design and operating characteristics of
Lanemark burners are continually being refined to meet the challenge. Suppliers of both new and refurbished rotational moulding ovens will point to the efficient heating of plastic polymer granules contained within a steel mould, and their optimised transition then through liquid to gel, as being fundamental.

The success enjoyed by many of the UK’s smaller breweries not only reflects consumer appeal in the wide range of products available, but also pays testimony to the individual specialist skills of those involved in the production of local ales.

This is clearly illustrated in Nuneaton, Warwickshire where Church End Brewery currently produces some 20 barrels per brew run and has steadily grown in capacity since its formation in 1994. The brewer is reporting significant gains from the decision to install highly accurate and controllable Lanemark gas burner systems to heat the brew copper and hot liquor tank.

Adrian Langford is General Manager at Lanemark International, whose responsibilities include the small brewery sector – “The facility at Church End Brewery uses natural gas to heat the hot liquor tank to 60°C,” he explains, “which is readily achieved by a Lanemark
TX25E burner system. This is connected to a 2½ inch nominal bore immersion tube heat exchanger arrangement submerged within the vessel.

The temperature is then raised to between 63°C and 68°C for the preparation of the mash tun. “Once transformed into wort, a volume equivalent to 20 barrels is then transferred into an adjacent copper where a second gas fired small diameter (3") immersion tube heat exchanger is constructed as a helical coil, to minimise intrusion into the working area. Here, a TX30 delivers 200kW to heat the wort to 100°C where it is then held at a ‘rolling boil’ for
approximately 90 minutes.”

He points out that overall efficiency of the installation is typically 82% – a figure that is some 20% higher than the brewer’s original facility that utilised a steam heating system. “The environmental benefits and increased operating efficiency associated with the use of the gas fired Lanemark systems have also helped us to reduce our Climate Change Levy liability and minimise our energy costs,” comments Karl Graves, Brewery Manager. “The high levels of control and accuracy available with the heating systems make a major contribution to our ongoing brewing success.”

The changeover has been a key factor in assisting Church End Brewery to expand its capacity at minimal additional cost to the natural gas fuel bill.

Today, the brewery offers some 40 brands, delivering to a wide range of free and tied houses both locally and further afield. “Much of the brewing success in this market depends upon experience and the brewer’s own interpretation of requirements,” adds Adrian Langford, “and the installation at Church End Brewery is a prime example.
The fact that we are able to work very closely with the customer to accommodate the specific needs of each brewing process is, we believe, very important. We are delighted to be involved with this project which has been added to an impressive list of successful Lanemark heating systems applications within the brewery sector.”
www.lanemark.com
Lanemark House, Whitacre Road, Nuneaton, Warwickshire CV11 6BW United Kingdom
Tel: +44 (0) 24 7635 2000 Fax: +44 (0) 24 7634 1166 E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. www.lanemark.com

BVC have completed a project for a food manufacturer, supplying and installing a central vacuum cleaning system within a boiler house.  The system, designed for 1 person using 51 mm hose and tools to carry out essential housekeeping duties throughout the boiler house and bulk removal of sand from the boiler.

There are 12 hose connection points installed, through 6 floor levels, with interconnecting pipe work back to a BVC static industrial vacuum cleaner.

The BVC Centurion model TI80 industrial vacuum cleaner, powered by a 7.5kw motor, protected by a vacuum relief valve.  Displaced air is filtered within the BVC ‘clear flow’ filtration system and particles collected in a removable bin.

Problem:
A large chemical plant in Eastern Tennessee was experiencing a number of tube leaks in one of their boiler generating banks. The cause for the failures consisted of two specific flaw mechanisms revealed through destructive tube samples, which are listed below:

 ID pitting as small as 3/16" diameter occurring between the mud drum tubesheet and mud drum bend, which was mainly found on the cold side.
 ID longitudinal grooves as small as 1/8" in width located between the steam drum tubesheet and steam drum bend was found on the hot side tubes.