40 tons of hot water boiler grate speed coal seam thickness is more or less appropriate

The 40-ton hot water boiler grate speed can be changed to the default speed, and the thickness of the coal seam is 8 cm to 12 cm.

Grate: A part of a boiler or industrial furnace that stacks solid fuel and burns it effectively. The whole grate mainly consists of two parts: the frame and the grate piece.

The grate sheet is usually made of cast iron, and the necessary ventilation gap is maintained between the pieces after assembly, and a separation ventilation chamber that can adjust the air volume is often set at the bottom of the grate, so that the air enters the fuel layer through the gap and the ash after combustion is discharged by manual or mechanical means. There are stationary, mobile, reciprocating, vibrating and bottom-feeding types.

The cause of black smoke is that it is not burned thoroughly, that is, the flue gas has a high content of carbon monoxide and carbon particles, which is to put it bluntly, it does not burn well. Even if the dust collector is good and can reduce some of the black smoke, it is necessary to solve the combustion problem. From the phenomenon point of view, the black smoke may be due to the following factors:

1. The coal quality is not good, the carbon content and volatile matter are not enough, resulting in combustion difficulties; 2. The furnace arch falls off, causing the furnace temperature to be too low; 3. Improper mediation; 4. The particles of coal are too fine, resulting in a large number of droplets; 5. The water content in the coal is too low, the external moisture is less than 8%, and the chain boiler requires 12%-20%. Let's look it up according to the reasons mentioned above. For the problem of coal seam thickness, the coal seam thickness of the general chain boiler is 100-120mm.

Air leakage of the dust collector will also cause the dust removal effect to decrease, resulting in black smoke. But that's not fundamental.

The thickness of the coal seam per ton of reciprocating furnace is affected by the air flow in the furnace, the temperature of the furnace, the amount of condensate, the type of furnace coal, the thermal culture value of the furnace coal, etc., and can generally be set between 30-40mm to adapt to the change of air flow, so that the combustion in the furnace can be properly controlled, and the consumption of furnace coal and the emission of pollutants can be reduced.

The optimal setting of coal seam thickness per ton reciprocating furnace is the key to combustion control in the furnace, which can effectively improve the thermal efficiency of the furnace coal, reduce the coal consumption and pollutant emissions, improve the stability and controllability of the furnace coal combustion, and better meet the requirements of thermal efficiency, pollutant emission and energy consumption of thermal power plants.

Therefore, when formulating the thickness of the coal seam of the reciprocating furnace per ton, it is necessary to consider the air flow in the furnace, the temperature of the furnace, the amount of condensate, the type of furnace coal, the calorific value of the furnace coal, etc., and adjust the thickness of the furnace coal seam according to the actual situation, so as to meet the requirements of combustion control in the furnace, so as to achieve the best thermal efficiency and pollutant emission effect of the furnace coal in order to cover the excavation.

I need more contextual information to answer this question in my return. A reciprocating furnace is a type of equipment used to sinter iron ore auspicious stone or other metal ores, while 40 tons may refer to the furnace's production capacity or processing capacity. As for the thickness of the coal seam, it is necessary to know the specific scenario and situation to determine what it has to do with the furnace.