Focus on pellets process: the experience in use of agricultural

and forestall biomasses

• Bioenergy International• Conference Bydgoszcz 17 June 2010• PELLETS UPDATE

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LA MECCANICA S.r.l., with 50 years of experience in manufacturing machinery for feed pellets and 15 years of experience in machinery for sawdust pellets and pellets from agricultural residue for green energy is today an organization that focuses on an integrated service for the customers.

Our mission is to help resolve environmental problems by- giving added value to your waste - recovering green energy from agricultural and industrial residue and also from short-cycle cultivation- contributing to sustainable development.

Our attention is focused on maximizing customer profits by- adapting lines and plant to the needs of the customer- providing simple and reliable solutions to complex technological problems- coordinating the technical engineering of the plant with our technological partners- supplying consumables and spare parts for the pellet mills of the world’s largest manufacturers

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•Manufacturing dies, rollers and liners – both for customers who use La Meccanica mills and for competitors’ equipment - as well as machinery have enabled us to acquire exceptional competence and know-how in the behaviour of various raw materials during processing.

•Owing to this experience and competence, technical solutions, energy consumption and die productivity have been optimised thanks the synergies of:

- the production organisation - the spare parts and after sale service division- the engineering division

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A MODERN ORGANIZED PRODUCTION WITH CNC

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AN ENGINEERING DIVISION + SPARE PARTS AND “AFTER SALE-SERVICE” DIVISION

A flexible organisation with two business divisions to better focus on specific competencies and optimize human and instrumental resources

SPARE PARTS AND “AFTER SALE SERVICE” DIVISION CUSTOMER CARE

• The division has been structured to ensure that customers receive effective:– technical advice on dies also in relation to raw materials;– supplies of consumables – dies – rollers – liners for all leading brands;– complete maintenance of dies and rollers, including collection and redelivery service in

some countries.

• This service is based on:– a production structure that is able to produce more than 2,000 dies/year for any type of

mill, with fully computerized control of all production stages;– a quality assurance service starting from raw materials to the finished product with an in-

house quality control laboratory for materials and heat treatments;– a roller and die maintenance service with active departments expressly organized at the

Cittadella (Italy) headquarters and at Visbeck, near Vechta in Germany, including the collection and redelivery service when the conditions are suitable;

– a technical customer care service with specialists who are ready to operate at the customer’s premises;

– a free service with the presence of a technician for setting up dies during the test phase;– a fast service for processing requests from the offer to meeting the order

•

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ENGINEERING DIVISION• It is organized to ensure an efficient response to customers who require machines

and/or complete lines for the production of sawdust pellets and/or pellets from agricultural residue, and it ensure:

– technical advice to define an optimal solution in relation to customer needs, to raw materials, to the final product and to local technical and environmental conditions;

– financial advice on possible funding for the investment;– general and detailed design for fitting the production line into the available building spaces;– simple and reliable solutions to complex technological problems;– coordinating technical construction of the plant with the technological partners involved in the supply;– supervision of the assembly, mounting, start up and testing of the supplied machines and/or lines– education and training customer’s staff.

• It is based on:– a design office with some staff specializing in plant analysis, other staff specializing in machine design

and other staff specializing in drawing up the technical documentation required by EU standards– an in-house productive structure that manufactures all the main mechanical components in-house with

totally computerized control of each production phase;– an in-house assembly department that carries out preassembly of the mechanical structural work of the

machines to ensure that they conform to standards;– a quality control service from the raw-material phase to the finished product with an in-house quality-

control laboratory for materials and heat treatments;– a group of specialized service technicians to supervising mounting and start up machines and/or plants;– a rapid service for processing inquiries and quotations to meeting the order

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SOME INSTALLATION FOR WOODEN PELLETSA Plant with 8,0 ton/h. capacity - USA

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Wooden Pellets – Cap. 1,5 -1,8 ton/h. Hungry

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Hard Wooden Pellets – Capacity 9,0 ton/h. Romany

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Soft Wood Pellets – Capacity 6,0 – 7,0 ton/h. Belgium

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KEYS FOR GOOD QUALITY WOOD PELLETS AND EFFICIENT PRODUCTION

• Raw Materials quality and preparation:» Hard or soft wood or mixture have different characteristics and behaviour » Homogeneity and continuity of mixtures, granulometry and moisture of

components;• Dusts recycling has:

» To avoid too dry or wet dusts as well as overload of dust» To recycle about 1 – 3% to have a good mixing

• Conditioning of wood to reach before die a moisture of Hard Wood 11 – 12 % Soft Wood 8 – 12%:

» Sprayed water, better if warm about 70 °C, steam isn’t necessary;» Water addition 1,5 – 2,0 %, if more has to be done before conditioner;» Useful addition of sprayed oil up to 1%;

• Die compression rate: » Soft wood 6,5 – 7 times the diameter of holes» Hard wood 5,5 – 6 times the diameter of holes

• Temperature of:» Pelleting chamber, pellets and bearing less than 95°C

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ANALYSIS RESULT OF HARD WOOD PELLETS

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Analysis date: 07-19/04/2010 by SGS INSTITUT FRESENIUS GmbH

SPECIFICATIONS U.M

Hard Wood Pellets

Sample n° 100173147

Hard Wood Pellets Sample

n° 100173148

SPECIFIC GRAVITY kg/dm3 1,15 1,19Met.: DIN 52182 APPARENT DENSITY kg/dm3 - -

Met.: UNI CEN/TS 15103:2005 13/

WATER CONTENT g/100g 4,6 4,9Met.: DIN 51718 ASH (815°C) g/100g 0,9 0,7Met.: DIN51719 (a) (a) NET CALORIC VALUE Mj/kg 18,2 18Met.: DIN 51900

(a) The ash were higher than DIN Plus, why the furnace must be regulated. Furnace and drying line aren't supply of La Meccanica

Straw Pellets Installations - Poland

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Hammer Mill mod. MM 340/4P – 250 kW

N° 2 Pellet Mill mod. CLM 800 P – 280 kW

N° 2 Pellet Mill mod. CLM 800 P – 280 kW during erection

Straw Pellets Installations - Poland

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Hammer Mill mod. MM 340/4P – 250 kW

Pellet Mill mod. CLM 800 P – 280 kW

KEYS FOR GOOD QUALITY STRAW PELLETS AND EFFICIENT PRODUCTION

• Raw Materials quality and preparation:» Different kind of straw have different characteristics and behaviour » Homogeneity and continuity of mixtures, granulometry and moisture of

components up to 14% for a optimal result;• Dusts recycling has:

» To avoid too dry or wet dusts as well as overload of dust» To recycle about 2 – 3% to have a good mixing

• Conditioning of straw to reach before die a moisture of 10 – 12 %» Sprayed water, better if warm about 70 °C, steam isn’t necessary;» Water addition 1,5 – 2,0 %, if more has to be done before conditioner;» Useful addition of sprayed oil up to 1%;

• Die compression rate: » Straw 8,5 – 9 times the diameter of holes

• Temperature of:» Pelleting chamber, pellets and bearing less than 95°C

• Oversized cooler:» To use also as dryer, if moisture is relative high

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ANALYSIS RESULT OF SOME POLISH STRAW PELLETS

The caloric power is in relationship with density – moisture – ash content

Analysis date: 03-19/05/2010 by CHELAB S.r.l. - Italy

SPECIFICATIONS U.M

Straw Pellets

Sample n° 1

Straw Pellets

Sample n° 2

Straw Pellets

Sample n° 3

SPECIFIC GRAVITY kg/dm3 1,055 1,243 1,198

Met.: DIN 52182:1976 19/

APPARENT DENSITY kg/dm3 0,4795 0,5969 0,6094

Met.: UNI CEN/TS 15103:2005 13/

WATER CONTENT g/100g 9,24 7,33 9,23

Met.: UNI EN 147741:

ASH g/100g 3,92 4,9 6,9

Met.: UNI EN 14775:2010 13/

LOW CALORIC POWER kj/kg 15.540 16.110 14.870

Met.: UNI CEN/TS 14918:2005 13/

For more information, please, contact:

LA MECCANICA S.r.l.Cittadella (PD) Italywww.lameccanica.it

Agent for Poland:

SECOM POLSKA Sp. z o.o. 94-121 Lodz ul. Pilkarska 17

Tel. + 48 (0)42 25874664 – Fax +48 (0)422587464e-mail: anna.zak@secompolska.pl;

www.secompolska.pl

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