锅炉运行司磨.doc

锅炉运行司磨
The boiler runs the mill position
First, the inspection project before the first start of the system?
Answer: p separator regularly and check the block.
(4) the prevention of air leakage of the system shall be found in a timely manner.
Pay attention to the operation of the coal machine, the discovery of the product and the emergency of the coal in the emergency;
notice the action of the powder tube and the air tube lock, and find out that the carbule should be unconnected,
To make it work properly:
prevent the back of the powder tube and the powder tube.
The range of parameters that should be controlled in the operation of the powder system?
the suction pressure of the mill is kept at about 200 ~ 300Pa.
the negative pressure of the exhaust machine is kept at about 5. 5 kPa.
the pressure difference between the coal mill and the coal mill is about 2. 5 kPa.
mill outlet temperature shall not exceed 85 °C ;
powder storehouse temperature not over 85 °C ;
The coal powder is controlled at R90 = 18-30%;
Powder position should be maintained at no less than 1. 0 m. No higher than 4. 0 m;
Eight, coal mill temperature is not higher than 50 °C, and return oil temperature is not higher than 42 °C.
reducer, the oil temperature is not higher than 40 °C.
rolling bearing temperature is not higher than 80 °C.
motor temperature rise of less than 65 °C :
The coal mill shall have no more than 10 minutes of continuous idle time:
13, coal mill inlet temperature should be maintained at about 255 °C;
What is the notice of the caged operation?
Answer: the current and speed of the powder machine should be paid attention to the fixed value
Lower the board, close it to the powder warehouse, send the powder in the right direction, and send the pink side to the back
All or part of the powder will be cut to the pollinator, and the powder position of the powder bin and the need powder will be changed
The connection between the furnace and the mill should be maintain