Are You Choosing the Right Insulation Material for Regenerative Organic Waste Gas Incinerator?

With the continuous development of surface treatment processes in the manufacturing industry, volatile organic compounds are increasingly used in industry. The configuration of regenerative exhaust gas incinerators is becoming more and more urgent. Most volatile organic compounds (VOCs) have special odors, can cause various discomforts to the human body, and are toxic, irritating, and carcinogenic. Under sunlight, photochemical reactions occur between nitrogen oxides, hydrocarbon organic compounds, and oxidants in the atmosphere. Generate photochemical smog, endanger human health and crop growth, and destroy the ozone layer. In recent years, people’s awareness of environmental protection has continued to increase, and their requirements for controlling air pollution have increased. The economical and effective treatment of waste gas containing volatile organic compounds has become an urgent problem that needs to be solved. Then the question arises, how do we complete this waste gas treatment process?

RTO Regenerative Organic Waste Gas Incinerator

Waste gas treatment of RTO regenerative organic waste gas incinerator

The burned organic waste gas undergoes a thermal oxidation reaction at 760℃~1000℃ to generate carbon dioxide and water. If the organic matter contains other elements such as halogen, the oxidation products will also include hydrogen halide, etc. The exhaust gas is first heated by the regenerator to a temperature close to the thermal oxidation temperature and then enters the combustion chamber for thermal oxidation. The temperature of the oxidized gas increases. The organic matter is essentially converted into carbon dioxide and water. The purified gas passes through another heat storage body, the temperature drops, and can be discharged after reaching the emission standard. Different heat storage bodies are switched over time through switching valves or rotating devices to absorb and release heat respectively.

Seeing the above intuitive analysis, the answer appears. RTO regenerative organic waste gas incinerator can complete the waste gas treatment process.

Insulation Furnace Lining Ceramic Fiber Module

Configuration of insulation materials for RTO regenerative organic waste gas incinerator

The operating temperature of the RTO regenerative organic waste gas incinerator is around 1000°C. In response to the national call for energy conservation, the thermal insulation material in the furnace was originally designed to use ceramic fiber modules with low thermal conductivity and low bulk density as the furnace lining. The traditional dense refractory bricks are abandoned.

Ceramic Fiber Module Aluminum Silicate Fiber Module

Why choose ceramic fiber modules as the lining when designing the lining of the RTO regenerative incinerator? What are its advantages over duty refractory bricks?

The RTO furnace lining uses a ceramic fiber insulation structure, which can save about 60% of energy compared to brick furnaces according to theoretical calculations. The ceramic fiber module uses high-quality long fiber needle-punched blankets as raw materials, which can achieve rapid heating and high-precision temperature control. Get rid of the disadvantages of dense materials and no need for an oven. This is due to the excellent chemical and thermal stability of the high-quality long-fiber needle-punched blanket used for compressed ceramic fiber modules. Able to resist the effects of rapid cooling and heating on the product itself. The low heat capacity and low thermal conductivity of ceramic fiber modules prevent the module itself from collecting too much heat. It can better distribute heat evenly inside the furnace body. The overall energy-saving effect of the RTO regenerative organic waste gas incinerator is improved.

Ceramic Fiber Mold Blanket Aluminum Silicate Fiber Blanket

Rongsheng refractory material manufacturer can provide refractory materials for RTO furnace regenerative exhaust gas incinerator insulation engineering. And we already have multiple delivered RTO furnace projects. During the construction process of the full-fiber structure of the RTO regenerative organic waste gas incinerator, staggered joint splicing is used to fix it, forming a seamless overall sealed structure. The energy-saving effect of the stove in use is even more superior.

Traditional Neapolitan Wood-Burning Oven – For Your Perfect Pizza

The Neapolitan wood-burning oven was first used by the Egyptians of the early civilisations. Made with clay from the Nile, the fantastic invention gave the people the chance to cook their food, most probably for the first time.

The structure of the early oven was different compared to the familiar ones we see today. In fact, the antiquated oven was split into two – the hob, and underneath was the space for burning the wood to heat the oven.

The Romans introduced some changes to this discovery by the Egyptians. Using their skill in building arches, the Romans developed and applied the same system to the inside of the oven’s design, resulting in an arc or dome-shaped structure. This familiar form has remained unchanged until today.

Now how is a Neapolitan wood-burning oven constructed?

The basic structure of an artisan Neapolitan wood-burning oven consists of the base, and the dome.

The base is typically a manufactured steel base filled with ¾ clay and ¼ sand from the sea. The sand is then covered with another thin layer of clay, then finally covered with refractory brown bricks called “biscuit of Sorrento.”

Once the bricks are laid, a thin layer of plaster is applied between the bricks that form the oven hob, giving the bricks a small space to expand when they are subjected to intensive heat, otherwise, the bricks will split or crack.

Meanwhile, the arc-shaped dome of a Neapolitan wood-burning oven is built separately. Its size is patterned after the diameter of the oven’s base, and is usually made with the bricks of “Santa Maria”- large refractory bricks, that don’t allow the heat to escape.

An important consideration that characterises the dome is the size of its mouth. Ideally, it should be small enough for the oven to contain, and not easily disperse the heat.

Once the dome is formed, refractoryonline.com/refractory-brick-for-sale is covered with cement, and a thin layer of insulating material is applied in between. Again, this is done to enable the oven to contain and not easily lose heat.

Campania is the last remaining region of Italy that continues to produce the handmade traditional Artisan Neapolitan wood-burning ovens. It is a craft that requires special skills, utilising materials in the region and following specific characteristics.

Why the Neapolitan wood-burning oven?

There are a number of reasons why I prefer, and would recommend, the Neapolitan wood-burning oven to make your perfect pizza.

For one, I grew up with it as my forefathers did, and trust me on this – a real Neapolitan pizza can only be authentic if it is made using a wood-burning oven!

Neapolitan Wood-burning ovens are better that modern, conventional ones since they are capable of sustaining higher temperatures and spreading the heat evenly inside. A metal oven simply can’t do that.

While a metal oven cannot generate or retain sufficient heat in excess of, say 500 degrees, a wood-burning oven can very well do so and radiates the heat evenly inside its walls.

The wood-burning oven’s capability to retain heat at longer periods of time also comes in handy especially if you are preparing many pizzas at the shortest possible time.

Lastly, they simply enhance the flavour and quality of the pizza – cooking it to perfection.

Top tips

To have a perfectly-cooked pizza, your oven should have the ideal capacity of six to seven pizzas.

If your oven can cook for more than that, it usually means it has a bigger “mouth” which requires more wood.

An oven with a big mouth or opening consequently looses a lot of heat and therefore you will be constantly in need of more wood, wasting your money! I’m sure none of us would want that.

Also, if your oven has a bigger capacity, the pizzas that are cooked close to the “mouth” of the oven will require more time to cook -therefore lessens the quality, and alters the ideal characteristics of perfect pizzas.

For more information, visit www.refractoryonline.com.

Article Source: EzineArticles.com/7108828

Blacksmith Gas Forge Basics On Refractory Materials

A Gas Forge May Be The Solution For Your Work Shop

The modern blacksmith may use either a solid fuel forge such as a coal forge or a gas forge The coal forge is still the most versatile, but a propane gas forge is the most convenient. Gas forges run at a bit over 2000 degrees Fahrenheit, which is certainly enough to do general forging.

The propane forge is actually an insulated box of various sizes and shape, that have one or more burners in the top or the side. The burners may be atmospheric or have an electric blower attached to them. The chamber holds the heat to heat the bar, and the burner provides the heat. Of course with a propane gas forge you are limited by what you can fit in the box.

The refractory insulation in a blacksmith gas forge is a high temperature ceramic fiber. Trade names are Kaowool, Durablanket, or Fiberfax. This insulation allows the high temperature inside the gas forge but prevents the outer shell from deteriorating. Hard or soft firebrick can also be used to lock the heat in the forge chamber.

In some blacksmith gas forges the insulation material is a castable refractory. This is more like a concrete that you mix up and shape to your gas forge chamber. This is more of a heat shield than an actual insulator. This type of gas forge will take a while to heat up. Refractoryonline.com acts as a heat sink until it has soaked up enough heat that it reaches an equilibrium between the high temperature inside and the loss to the environment.

The refractory is more durable than the common fiber insulation, but you sacrifice thermal efficiency. It is also much heavier than the Kaowool insulation. The castable is much less flexible than the fiber insulation as well. This means that it will crack with repeated heatings. This may not be a problem as the pieces usually do not fall out.

The option of a gas forge is a great bonus to the modern blacksmith. For those that want a quick heat source with minimal maintenance, such as hobby blacksmiths it is ideal. Many professional blacksmiths make their living with a propane forge,and only use a coal forge occasionally.

The small size of a propane forge means that it can be quite portable. Many hobby smiths will easily move a propane forge out into the driveway, or just outside a shed for use. They are ideal for hammer ins as well.

Gas Forges are able to be purchased from many supplies or a blacksmith can make his own gas forge with only a few basic tools of a welder, drill press, and metal cutter.