What is the purpose of a boiler grate?

The grate refers to the component in a boiler that accumulates solid fuel and enables its effective combustion. It consists of two parts: the grate frame and the grate bars, which are usually cast from iron. After assembly, there should be ventilation gaps between each bar, and a separate adjustable air supply chamber is often set up below the grate, allowing air to enter the fuel layer through the gaps. The burnt ash can be discharged manually or mechanically. So, what is the purpose of the boiler grate?

How to maintain the grate bars of the boiler during operation?

The boiler grate is a long-established, reliable, and stable mechanical coal-burning device in industrial boilers, which has been widely used. So how should the grate bars of the boiler be maintained during operation?

What are the advantages and disadvantages of boiler grates?

There are many types of boiler grates, with various shapes of grates. Commonly, they can be divided into inclined and degree types based on the common insertion method. According to the deviation of coal movement on the grate, which goes against the forward direction, and based on the cooling conditions of the grate, they can be divided into water-cooled and air-cooled types. According to the movement patterns of the grate bars, they can be divided into distance measurement and all measurement types. So what are the advantages and disadvantages of boiler grates?

The principle and characteristics of the grate, the scale grate manufacturer will clarify for you.

The manufacturer of the slotted grate believes that the increasingly serious environmental pollution problem has made people aware of the importance of sustainable development. The contradiction between the growing amount of household waste and the relatively backward treatment technology has led to a large amount of land resources being occupied by waste backfill, making the issue of space waste unavoidable. Household waste takes a long time to decompose. How to effectively handle waste in a short period of time has become the main direction of research activities in related industries. Incineration has come into the public's view. Practice has shown that waste incineration not only improves the efficiency of waste treatment but also avoids unnecessary pollution to the surrounding environment.

Some common knowledge about grate bars, explained by the scale grate manufacturer.

The manufacturer of the slotted grate believes that mechanical grate-type waste incinerators are divided into drying zone, combustion zone, and incineration zone. According to the position of the refractory materials used, they can be divided into the waste pushing machine inlet area, grate side wall, front arch, rear arch, furnace top, and slag discharge port. The temperatures, mechanical strengths, and atmospheres of the furnace linings in these areas are different, requiring the selection of appropriate refractory materials based on their respective working conditions. The forms of damage to the furnace wall mainly include structural damage to the furnace wall caused by thermal stress and mechanical wear, bonding, penetration, and erosion of the refractory materials of the furnace wall caused by waste.

Some knowledge points about the grate, as told by the scale grate manufacturer.

The manufacturer of the grate for the incinerator believes that the incineration of municipal solid waste is a very complex physical and chemical reaction process, which can usually be divided into three stages: drying, thermal decomposition, and combustion. Incinerators can be classified into mechanical grate type, fluidized bed type, and rotary type. Among them, the mechanical grate incinerator is the mainstream equipment for large-scale waste incineration. The main advantages of this type of furnace are its mature technology, stable operation, relatively low amount of ash residue produced, low slag loss rate, and wide adaptability. Most solid waste can be burned directly in the furnace without any pretreatment.

Boiler grate installation, ignition operation steps, and knowledge related to waste incineration.

According to the different calorific values of the waste, allocate different air volumes to supply combustion air. At the same time, the boiler grate drive of each beam can be independently controlled, facilitating the independent control of the feeding amount and air volume in different combustion areas.

How should the boiler grate be monitored and maintained? What methods are available? What checks should be done before using the boiler grate?

There are different operating methods for boiler grates during operation, but from the current situation, we can see how to operate them effectively. Most people probably do not have a good understanding of how to monitor and maintain boiler grates during the operation process.