Attention! New! IL-6090 SGC high-precision CCD laser machine (with camera) equipped with an advanced optical object recognition system. Thanks to modern software and high-quality components, the machine is able to independently recognize and scan the necessary objects from a variety of presented ones, and then cut them within the specified boundaries according to the required parameters.
Good afternoon! INTERLASER informs you about the huge arrival of lenses, mirrors for laser equipment The lowest prices for lenses and mirrors: Lenses for laser machines ZnSe (USA): diameter 20, focus 2 (50.8 mm) - 3 304 rubles diameter 20, focus 5 (12.7 mm) ) - 3 304 rub diameter 25, focus 2.5 (63.5 mm) - 7 350 rub 25, focus 2.5 (63.5 mm) - 4 900 rubles Mirrors: diameter 20 mm, thickness 2/3 mm - 840 rubles diameter 25 mm, thickness 2/3 mm - 980 rubles diameter 30...
Pellet mill - designed for the production of wood pellets (pellets) from dry wood waste. The main processed raw material is sawdust. Pellet mills small allow you to get pellets from any biomass. Small pellet mills are in demand in private households, as well as in small industries. They are used for the production of pellets, for space heating, as well as for the production of animal feed. more......
INTERLASER is pleased to inform its customers about a significant (12.5%) price reduction for milling machines Carver-0609. The new models of Carver-0609 milling machines are equipped with a 1.5 kW water-cooled spindle, an electronic table zero point sensor, advanced HIWIN (Taiwan) rail guides on all axes, and a water pump is also supplied with the machines. The milling machine is controlled via a DSP controller, Type3 software is included. Delivery of equipment is carried out within 60 working days from the date of prepayment (70% of the cost). For all questions, please contact our sales offices by phone numbers listed on the site.
Attention! New equipment coming soon! The INTERLASER company informs its customers about the planned deliveries of fiber-optic laser markers for metal to the Company's warehouse in the near future!
In the period from February 28 to March 02, 2012, our Company took part in the Federal Wholesale Exhibition-Fair "TEXTILLEGPROM" (Moscow, All-Russian Exhibition Center, pavilion 55, 1st floor, booth A-12). At the exhibition, we presented the HX 1290SE laser engraving machine and the RABBIT 1120H plotter. Our specialists demonstrated to the visitors of the exhibition the wide possibilities of a laser machine for cutting, laser cutting and engraving of textile materials, leather, plastic and veneer. Also, the work of a plotter for cutting rolled materials was demonstrated. All samples of equipment brought to the exhibition were sold directly from the stand at the end of the exhibition. You can find a photo report on the exhibition in the photo gallery section.
When choosing an energy source for heating your premises, you must answer the question:
“I want an automated boiler?!”
If you are satisfied with a non-automated boiler, into which it will be necessary to load firewood or coal 3-4 times a day, then you can put a wood-burning boiler or a long-burning boiler. Perhaps you have a lot of free firewood or coal.
In this case, one important point must be understood that all long-burning boilers, in which it is stated that one bookmark is enough for 12-36 hours, actually work this way only on condition that the moisture content of the firewood is 10-12%. To do this, it is necessary to prepare firewood in advance so that they lie down for 1-2 years, dry, and only then use them for their intended purpose.
But as a rule, all firewood that is sold in Russia has a moisture content of 30-40%, and when such firewood is burned in long-burning boilers, part of the energy will be spent on drying them to the required humidity and one bookmark will not be enough for the declared 12-36 hours, but in reality will be enough for 6-12 hours.
If you still need automated heating and you do not have main gas, then you have a choice: pellets, diesel, electricity or propane gas.
The cheapest energy carrier of the listed is pellets.
Well, now the most important question: what are pellets?
Pellets are biofuels obtained from peat, wood waste and agricultural waste. Represents cylindrical granules of the standard size.
Pellets are a renewable energy source. The most popular and effective are wood pellets, also pellets are made from: buckwheat husks, seed husks, peat, straw, etc.
I will give a photo of pellets from various raw materials:
Compound feed!!! Everyone who sees pellets for the first time thinks so)
In appearance, all pellets are the same: they have the same shape and dark color, but they have strong differences, I will talk about that later.
How much do pellets cost?
The cost of pellets varies depending on their characteristics and the region from 5,500 rubles to 8,500 rubles per 1 ton.
But in fact, the cost of 1 ton of pellets does not mean anything, because it is not clear what the monthly fuel consumption will be.
On average, for 200 m2 of residential premises, the monthly fuel consumption is 1400-2000 kg, depending on the insulation of the premises. From here you can calculate the approximate cost of heating on pellets: from 8400 rubles to 12000 rubles per month, depending on the insulation of the room and the temperature outside.
Below is a graph of the cost of heating on various types of fuel 200 m2 of living space per year, the data are given from the heat engineering calculation according to aggregated indicators:
The graph shows that the cheapest energy source in Russia is
this is the main gas, then there are pellets.
Heating on diesel is 2 times more expensive. Electricity is also 2 times more expensive, with the cost of 1 kW of electricity 2.4 rubles. Propane gas is 1.5 times more expensive.
Also, when using pellets instead of electricity, you release free electrical power.
With an electric boiler, there may be a shortage of electricity. This means that for example, 10 kW of electricity is allocated to the object and that's it. And you need to turn on the TV, kettle, refrigerator and there is nothing left for heating.
For people with energy education and for those who understand thermal power engineering: the cost of 1 gcal of heat is 1100 rubles, or the cost of 1 kW of heat is 1.1 rubles.
For example: everyone knows the cost of 1 kW of electricity in their premises. If you have 1 kW costs 3 rubles, then the cost of heating on pellets will be 3 times cheaper.
Where to get pellets?
Today in Russia there are more than 500 pellet manufacturers. Each region has 5-7 manufacturers and 10-15 trading companies that sell pellets. Therefore, I can say with confidence that there are a lot of pellets, you will not be left without pellets.
It is always more profitable to buy pellets in the period May-July (summer), because during this period all pellet manufacturers experience a strong decline in sales.
The heating season has already ended or has not yet begun. The cost of pellets in the summer can be 2000 rubles cheaper per 1 ton than in the heating period. The peak of the cost of pellets is in December and January.
For this you need to understand:
How much does a pellet boiler, diesel or electricity cost.
How much will heating cost per year on these types of fuel.
The heating system itself, regardless of the choice of the boiler, will cost about the same.
Consider the payback period using the example of heating 200 m2 of a residential building:
Conclusion: despite the fact that a pellet boiler is more expensive, installing a pellet boiler will pay for itself in the case of a diesel engine in 1 year, in the case of electricity in 1.5 years.
How are pellets made?
Pellets are obtained by grinding raw materials to the state of flour. It is then dried to a moisture content of 8 to 12%. Further granulation, in a special device resembling a "meat grinder" or a granulator.
Gluing wood pellets occurs due to the content of the substance - lignin, which, when heated, ensures the creation of the required shape.
Pellets are an environmentally friendly fuel
The pellet production process is as follows:
How are pellets different from each other?
Diameter (mm). In Russia, pellets of 6 and 8 mm are most often found, but pellets with a diameter of 8 mm are more popular. 6mm pellets mainly for Italian boilers, or for the supply of pellets for export and pellet fireplaces. 99% of pellet boilers in Russia can consume at least 6 mm or 8 mm pellets.
Ash content (%). This indicator means how much ash will be formed when burning 1 kg of pellets. The lower the ash content, the less often it is necessary to clean the boiler. For normal operation of the boiler, on wood pellets, their ash content should not exceed 1%. Ash content of agro pellets (buckwheat, seeds, etc.) from 3% and above. Accordingly, the boiler will have to be cleaned 3 times more often. Did not clean the boiler in time, fuel consumption increased.
- Heat of combustion or calorific value. This indicator means how much energy will be released when burning 1 kg of fuel. Or the amount of heat released during the combustion of 1 kg of fuel. Accordingly, the higher the calorific value, the lower the consumption of pellets.
Humidity (%) . The humidity of the pellets should be between 8 and 12%, if this figure is higher or lower, the pellets will crumble.
Density of pellets. Subject to all production technologies, 1m3 pellets = 650kg. If the pellets are not dense, then this reduces their efficiency and, accordingly, increases fuel consumption.
Package. There are 2 main types of packaging such as big-bag (600-1000 kg.) and bag (15-40 kg.). Depending on the storage space, the hopper and the method of feeding the pellets, the client chooses the packaging that suits him.
Bags are most often stacked on a pallet and wrapped with packaging film, because. the film is unstable to the impact of sharp objects, then the pallets must be of high quality and not have a sharp surface. Also pellets in bags can be shipped in bulk.
How to store pellets?
Storing pellets is very easy. The main enemy of pellets is moisture.. Pellets are afraid of direct moisture. They do not absorb moisture from the air.
Therefore, you can store them in bags on the street on pallets and cover with waterproof materials, and big bags just on the street. because they are waterproof.
Advantages of pellets over other types of fuel
Advantages over diesel fuel:
The cost of heating on pellets is 2.5 times cheaper than on diesel fuel;
Pellets are not fluid, not combustible, not odorous;
Pellets are a renewable energy source, the cost of diesel is growing faster than the cost of pellets.
Advantage over electricity:
Heating on pellets is 2-5 times cheaper than on electricity;
Release of free electrical capacities;
There are no electric boilers of high power.
Advantage over wood and coal:
Pellets have an ash content of 0.5%, for firewood and coal 30-40%. Pellets have lower ash content and higher boiler efficiency;
The pellet boiler can work autonomously from 7 to 30 days. Pellets can work autonomously from 1 to 30 days;
Coal is dirty and burns with soot.
Advantage over gas tanks (propane gas):
The cost of 1 kW is 2 times cheaper than on gas from a reservoir;
Pellet boilers do not require coordination with supervision (up to 1 mW);
The price of propane gas is rising rapidly;
Advantage over mains gas:
Not all territories are gasified;
Payment is required for connection to the main gas and the main to the tie-in point;
The price of 1 kW from the main gas is only 20-30% lower, connection to the main will pay off only after 10 years;
Permits are issued slowly;
Gas fuel is constantly becoming more expensive;
In the event of an accident on the gas main, you will be left without heating;
It is impossible to stretch gas to the "wild corners" of nature;
Pellet boilers do not require supervision approval (up to 1 mW);
Pellets are a renewable and environmentally friendly source of energy.
How does a pellet boiler work
Device
The pellet boiler consists of 3 main parts: heat exchanger and burner, fuel supply system, pellet storage bin.
The principle of operation of the pellet boiler
Pellets are loaded into the bunker. With the help of a fuel supply system, they are fed into the combustion chamber (burner). A powerful air flow is forced into the burner with the help of a fan and the combustion process and water heating take place.
Pellets without forced air supply do not burn because they have an increased density. The boiler reaches the set water temperature of 80-85 C, turns off, the air and pellet supply stops. Pellets in the burner just smolder. When the water temperature cools down by 5-7 degrees, the boiler turns on again and this happens cyclically.
Maintenance of the pellet boiler
The frequency of filling the bunker with pellets depends on its volume, on average, a standard bunker is enough for 3-7 days of boiler operation. The boiler must be cleaned at intervals of 1-2-3 times a month, depending on the ash content of the pellets and the design of the heat exchanger. The ash pan of the boiler is also emptied of ash and the burner is cleaned of “coke”.
The pellet boiler can be serviced by non-qualified personnel, the service time takes 5-10 minutes. To maintain a pellet boiler, you do not need to have special skills.
Location of the pellet boiler
The pellet boiler can be placed in basements with low ceilings. You can place the boiler in outbuildings, as well as in separate buildings. For reliable operation of the automation system, the temperature in these rooms must be positive. It is important to ensure easy access to the pellets and the pellet boiler from all sides.
Do I need permits or approvals to install a pellet boiler
Pellets are non-explosive and environmentally friendly fuel. Pellet boiler - belongs to the segment of solid fuel boilers. When installing a pellet boiler, no permits and approvals are needed.
What to do with a pellet boiler if the main gas is supplied in 3-5 years?
If you plan to use pellet heating as a temporary source of heat, because you are waiting for a connection to the main gas, then you should not worry about extra expenses.
You can sell the boiler to us after it has been used. We call this feature trade-in pellet boilers.
Also, the pellet boiler can be left as a backup.
Call us, we will select a boiler for you according to power and calculate the monthly consumption of pellets in comparison with other energy sources.
Why pellets?
Wood pellets are an environmentally friendly type of fuel that is produced from the waste of the woodworking industry. They are the highest quality and most common type of fuel.
What are the main advantages of wood pellets along with other fuels?
1. Environmental benefits
1.1 Reducing the greenhouse effect
When burned, the same amount of carbon dioxide is released into the air as the tree absorbed during growth, the so-called closed carbon cycle.
Whereas when fossil fuels are burned, carbon dioxide accumulated over millions of years is released. All this increases the content of carbon dioxide in the atmosphere and, consequently, exacerbates the greenhouse effect.
1.2 Low risks during transportation
The risk of environmental pollution due to the leakage of oil products, tanker accidents is excluded. There is absolutely no risk of fires, explosions, or water pollution.
2. Socio-economic benefits
2.1 New jobs
Thanks to, as well as the use of wood, new jobs are created in the industrial, forestry and agricultural sectors and in the service sector. This significantly affects the formation of the cost of fuel, and also strengthens the social structure of the region.
2.2 Security of supply
Wood is a raw material that grows constantly and, accordingly, is not exhausted. If we assume that there will come a time when fossil fuels are used up, then wood will help us out.
2.3 Cost advantages
Pellets are a cost effective alternative to fossil fuels. Their prices are formed regardless of oil and gas prices, the resources of which may be exhausted over time.
3. Ability to compete with other biogenic fuels
Wood pallets have advantages not only in comparison with fossil fuels. If we compare pellets with other types of biogenic fuels, we can find the following advantages of pellets:
3.1 Warehousing
Due to the high energy content of pellets, they can be stored in a smaller storage area than any other solid biogenic fuel. This allows you to save the amount of fuel for the entire heating season.
3.2 Transport
The normalized sizes and flowability of pellets make it easy to transport them. This also makes it possible to automate the heating system: the pellets are transported by a tank truck, blown into the storage room, and then automatically fed into the boiler.
In connection with the above advantages, the production of wood pellets has now doubled compared to 2007.
Let's think for a minute - what is a worthy alternative to traditional types of fuel - diesel fuel, coal, firewood? Perhaps the most worthy replacement will be only natural gas and pellets. Everything is clear with gas, but what are pellets? This solid fuel has become popular relatively recently and will be required for its production.
But the most interesting thing is that the raw materials for pellets are ordinary sawdust, cereal production waste, straw waste, sunflower husks, and without any additives, which means that the environmental friendliness of this type of fuel is guaranteed. However, in our latitudes, wood waste pellets are the most popular. You can also find such names of the fuel in question: wood pellets, pellets, pellets.
Pellets compressed into small cylinders are obtained from wood waste. Abroad, pellets are quite confidently used for heating boiler houses, both industrial and domestic, because such a material is practically unrivaled - environmentally friendly, cheap and heat transfer is comparable to coal.
If we compare specifically by the cost of fuel, then of course natural gas will be several times cheaper, but if we calculate the costs of a new gas connection, then the benefit is not so obvious. And what will happen to gas prices in the future and how safe it is is a matter for a separate article.
Pellets are very convenient to use, besides, they burn better than ordinary firewood, due to the fact that they are very dense in structure and very dry, practically without excess moisture.
The maximum effect from pellets can be achieved by using special pellet burners and boilers.
Of course, conventional stoves and boilers are also suitable for heating.
Pellet granules are packaged in bags of a certain volume, for example, 15 kg and 30 liters. It is very convenient to store and transport raw materials in such packaging. During storage, it is desirable to keep such fuel in a room with low humidity and without large temperature fluctuations, so condensation can be avoided.
The main advantages of sawdust pellets
- When burned, the calorific value is higher than that of firewood and wood chips;
- The environmental friendliness of this type of fuel is very high;
- Ash content does not exceed 3%;
- When burned, 15 times less carbon dioxide is released into the atmosphere than when burning coal from wood;
- The efficiency of boiler houses, when using pellets, is higher due to the fact that heat transfer is greater;
- Not subject to spontaneous combustion;
- They do not cause allergies in humans, because they do not contain specific dust and litter.
Pellets are a worthy competitor to diesel fuel, coal and firewood. These are small cylindrical pellets that are used for combustion in specialized heating boilers. In Europe, this type of fuel has been successfully used for a long time. This is facilitated by environmental friendliness (these are compressed waste from woodworking and crop production) and the ability to automate the heating process: loose granules, which makes it possible to store them in tanks and, automatically, as needed, feed them to the boiler. The diameter of the pellets used for domestic boilers is 6–8 mm; in industrial boilers, larger pellets up to 10 mm in diameter are burned. The length can generally be from 5 to 70 mm.
How wood pellets are made
For the production of pellets, the most inexpensive wood is taken, which cannot be used for any other purpose. These are scraps, chips, sawdust. These wastes are sorted, cleaned of impurities, sand is screened out, etc. Further, a powerful magnet used on the sorting belt attracts iron (such as nails). After removal of foreign objects, wood waste is sent to a hammer mill, where it is crushed to fragments of 4 mm in size. This step is called pre-grinding. It is necessary for uniform drying of raw materials at the next stage.
The resulting sawdust is dried in a special bunker to the required moisture content (8–12%). Then they are sent for re-grinding. As a result, small fragments of wood are obtained, which, after being brought to the ideal moisture content (10%), are sent to the pellet mill. Here, under the influence of pressure (in some presses of high temperature), sawdust is converted into pellets. To do this, the composition is passed through a matrix in which round holes are cut. The design of the press - granulator resembles a conventional meat grinder: the dough is pressed through the holes, and granules are obtained. They are cooled in the cooling column. This is how the final product is obtained - fuel pellets.
Types and raw materials used
If we classify pellets by grade, then there are three types of them:
What are they made of
Any raw material containing lignin is suitable for the manufacture of pellets. The most common in Russia is wood raw materials, and coniferous species are more often used, despite the fact that better quality fuel is obtained from hardwood. The popularity of softwoods is explained by the fact that the processing of hardwoods requires more complex and expensive equipment: almost all hardwoods are not very well pressed, therefore more powerful equipment is required, it is often necessary to experimentally select the processing / moistening / pressing mode, and this time and money . Moreover, the cost of pellets when sold on the domestic market depends slightly on the material.
What is the difference birch pellets from conifers? Birch pellets have a slightly higher calorific value than softwood pellets, but the difference is small. But during the burning of birch there are no resins, which, with prolonged use of pine, settle in the chimney, which requires its cleaning.
Agropellets more often made from straw. Although the heat transfer of such pellets is less than that of wood pellets, they are much cheaper. Among agropellets, granules made from rapeseed straw are distinguished by greater heat transfer. Husk pellets(husks) of sunflower are excellent competitors to granules from. They have many advantages: husk granules are cheaper, they have much less ash content, and they emit more heat, and husk ash is environmentally friendly, which is an excellent fertilizer for agricultural crops.
Peat granules is a non-waste, economic and environmental type of fuel. But they are used mainly in industry because of the high ash content. The use of peat granules to enhance the effect of mineral fertilizers is also widespread.
Waste paper pellets produced by a different technology. Instead of drying, they are moistened and then placed in a pellet press. Due to the nature of the raw material, paper pelletizing requires more cost.
Features of heating with pellets
In order to use pellets as fuel more efficiently, you need to purchase a special boiler. operate in an automated mode: fuel pellets are stored in special containers - , from which they are fed into the boiler with the help of an auger.
If you want to save money and buy gray rather than white pellets, we advise you not to buy a large batch of fuel at once: not all burners can handle them. Buy a bag first, test it. If the boiler is working properly, you can buy a more solid batch. Do the same with agricultural pellets: first test the boiler with a small amount. But besides the ash content, there may be other problems: these granules do not tolerate transportation well, so already at this stage you will get a lot of waste. So it turns out that it is advisable to heat with this fuel, even if the boiler copes, if the production is somewhere nearby.
Ideal pellets for boilers are white. Their composition is usually homogeneous, and the ash content is low, due to the characteristics of the raw materials, the surface of such granules is dense, they crack and crumble less, and better tolerate transportation.
