What are the advantages and disadvantages of boiler grates?

　　Boiler GrateWhat are the advantages and disadvantages?

　　There are many types of boiler grates, with various shapes of grates. Commonly, they can be divided into inclined and degree types based on their insertion method; according to the deviation of coal movement on the grate against the forward direction, and based on the cooling conditions of the grate, they can be divided into water-cooled and air-cooled types. Based on 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?

　　What are the advantages and disadvantages of boiler grates?

　　1. Inclined Boiler Grate: The active grate's tail is placed on a movable beam, supported by rollers at both ends. The aforementioned boiler grate is also connected into a whole, forming a movable frame. The deceleration mechanism drives the pull rod through an eccentric wheel, then moves the active grate bars, with fixed grates set at a certain distance from the active bars fixed on the trough beam. A beam stands upright on the grate's frame. Due to the inclined configuration, the overall height and size of the coal-fired boiler increase, leading to higher construction investment for the boiler room.

　　2. GradedBoiler Grate: The structure of the graded grate is basically the same as that of the inclined grate. The first difference is: one is the insertion on the left and right of the main frame; the other is that the grate bars of the coal-fired boiler are visibly separated in appearance, with the degree-type grate bars curving upwards, displaying a zigzag shape.

　　3. Combustion Characteristics and Air Supply: The combustion process of coal on the circulating advancing grate and the air supply is very similar to chain speed. The difference lies in the relative movement of the coal layer and the grate, applying the shape and measures of the grate to stir the coal layer, playing the role of a fire shovel for loose coal layers. If the chain rate's technical methods are also used, the boiler burns low-quality coal with a low calorific value of 12500kcao/kg, high ash content, high moisture, and strong adhesion, as well as residues and waste.

　　What are the inspection items before using the chain grate?

　　1. First, the boiler accessory factory reminds you that the cold state continuous operation time of the chain grate should not be less than 8 hours.

　　2. Check whether the grate bars are broken and whether the long pins in the furnace are severely bent. If so, they can be pulled out, straightened, and reinstalled at any time at the waist hole of the long pin.

　　3. Irrelevant parts are not allowed to be left anywhere on the chain grate.

　　4. Remember to ensure that the ignition door opens flexibly, the coal door rises and falls conveniently, and the distance between the coal door's left and right sides and the grate surface is consistent, so as to ensure equal thickness of the coal layer on both sides of the furnace. If the distances are not equal, adjust them with the adjustment bolts to make them equal. The cover plate on the coal gate should be tightly covered to prevent coal from leaking in and blocking the upward and downward movement of the coal gate.

　　ThenBoiler GrateWhat are the advantages and disadvantages?

　　1. Check the performance of the boiler pressure gauge, water level gauge, safety valve, drainage device, water supply valve, steam valve, etc., to see if they meet the requirements, and whether other valves are intact.

　　2. Check whether the boiler water supply system is normal, including the water level in the storage tank, water supply temperature, water treatment equipment, etc. to meet the symbol requirements.

　　3. The boiler fuel combustion system, including fuel reserves, transmission lines, combustion equipment, ignition devices, fuel cutoff devices, oil pumps, etc., are all symbolic requirements.

　　4. The boiler ventilation system, including blowers, induced draft fans, air doors, damper openings, and ventilation ducts, should be intact.