What is the basic knowledge of boiler grate?

Feb 23,2023

There are many types of boiler grates, and grids of various shapes can be divided into inclined type and inclined type according to common plug-in type; According to the movement deviation of coal on the grate, it is opposite to the forward direction. According to the cooling premise of the grate, it can be divided into water cooling and air cooling. According to the motion law of the grate, it can be divided into distance measurement and all measurements. What is the basic knowledge of boiler grate? Let's introduce:

1、 Characteristics of boiler grate

1. Inclined boiler grate: place the tail of the movable grate on the movable beam, and the two ends of the beam are supported by rollers. The boiler grate is also connected as a whole to form a movable frame. The reducer drives the pull rod through the eccentric wheel, and then moves the movable grate, which is fixed on the slot beam at a certain distance from the movable grate. There is a beam on the frame of the grille. Due to the inclined configuration, the overall height and size of coal-fired boilers have increased, and the investment in boiler room construction has increased.

2. Grading grate: the structure of grading grate is basically the same as that of inclined grate. The difference is: first, the insertion of the left and right sides of the main frame; The other is that the appearance of grate plate of coal-fired boiler is obviously separated, and the degree grate plate is inclined upward in a zigzag shape.

3. Combustion characteristics and air distribution: the combustion process, air distribution and chain speed of coal on the circulating propulsion grate are very similar. The difference lies in the relative movement of coal seams and grate. The shape and measures of the grate are used to stir the coal seam and play the role of fire shovel in the loose coal seam. If the chain rate technology is also adopted, the boiler will burn 12500kcao/kg low calorific value, high ash content, high moisture, strong caking inferior coal, residue and waste.

2、 Boiler grate: what are the inspection items of chain grate before use?

1. The continuous cold running time of chain grate shall not be less than 8 hours.

2. Check whether the grate plate is broken and whether the furnace long pin is seriously bent. If any, it can be pulled out, straightened and reassembled at any time at the waist hole of the furnace pin.

3. It is not allowed to leave irrelevant parts anywhere on the chain grate.

4. Remember to ensure that the ignition valve can be opened flexibly, the coal door can be lifted and lowered easily, and the distance between the left and right sides of the coal door and the grate surface should be consistent to ensure that the thickness of the furnace layers on both sides of the furnace is equal. If the distance is not equal, adjust it with the adjusting bolt to make it equal. The cover plate on the coal gate shall be tightly covered to prevent coal leakage and block the upward and downward movement of the coal gate.

3、 Precautions for use of boiler grate

1. Check whether the performance of boiler pressure gauge, water level gauge, safety valve, blowdown device, feed water valve, steam valve, etc. meets the requirements and other valves are in good condition.

2. Whether the boiler water supply system is normal, including whether the water level of water tank, water supply temperature, water treatment equipment, etc. meet the symbol requirements.

3. Boiler fuel combustion system, including fuel storage, transmission line, combustion equipment, ignition equipment, fuel cut-off device, oil pump and other conditions are symbolic requirements.

4. Whether the boiler ventilation system, including blower, induced draft fan, damper, gate opening and ventilation pipe are in good condition.

What are the types of boiler grate?

What are the types of boiler grate?

The boiler grate is a part of the boiler or industrial furnace, which is used to contain solid fuel and effectively burn solid fuel. The whole grate mainly consists of two parts: frame and grate plate.
What is the working principle and classification of boiler grate? What are the potential safety hazards in the operation of boiler grate?

What is the working principle and classification of boiler grate? What are the potential safety hazards in the operation of boiler grate?

The boiler grate refers to the part of the boiler that accumulates solid fuel and makes it burn effectively. It consists of grate frame and grate plate, and is usually cast with cast iron. After assembly, there should be a ventilation gap between the components. A ventilation chamber with adjustable air volume is usually set under the grille to allow air to enter the fuel layer through the gap. The burned ash can be discharged manually or mechanically.
What are the components of small waste incinerator waste incinerator grate

What are the components of small waste incinerator waste incinerator grate

The primary combustion chamber, secondary combustion chamber, cyclone dust removal equipment, chimney, flue, pipe system software, high pressure fan, auxiliary pressure fan, primary combustion engine, secondary combustion engine, electrical cabinet, temperature display equipment, detection system, etc.
130t/h Cross-beam travelling grate sent to Mexico

130t/h Cross-beam travelling grate sent to Mexico

For the largest brewery in Mexico, a beam type chain grate with a length of 25 meters is manufactured. After more than 30 days of sea transportation, our grates have arrived in Mexico. Large grates have to be installed on site. The construction period is tight and the task is heavy. In order not to delay the production progress of the brewery, the chief engineer of the company led a team of engineers to the site to investigate the site situation and complete the installation of the whole set of grates in the shortest time.
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