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Cement kiln equipment maintenance process and construction safety measures

Date:2019-12-09 11:47     writer:admin     Views:

I. Maintenance process of cement kiln equipment and construction safety measures:


1. Incorporate safe construction measures and overall maintenance work into the important content of each unit for comprehensive consideration and implementation.
 

2. Before carrying out maintenance, you must first implement the equipment power-off procedures and procedures, and wear complete safety protection measures.
 

3. The maintenance equipment should focus on the safety of dangerous operations such as hot fire, ascent, hoisting, cross-operation, preheater, kiln grinding, etc.
 

 

II. The maintenance process and safe construction:


1. Overhaul of raw material system, analysis of raw material quality and combustion.
 

2. In-mill overhaul: first ensure that the power is off, the waste air damper is closed, and the exhaust in the mill is cleaned before entering.
 

3. Wear safety protection measures and wear safety belts when grinding and repairing.
 

4. When carrying out lifting operations, ensure that no one stays in the construction area, and pay attention to avoid other safety risks.
 

5. The firing system is overhauled, and the appearance, availability, and firmness of each component must be carefully checked.
 

6. Internal and external maintenance of the preheater: confirm that the relevant fan should be in the designated state and the air cannon is turned off.
 

7. In order to prevent personnel from accidentally discharging in the kiln, the upper discharge pipe flap valve should be closed.
 

8. Before entering, first observe whether there are kiln skins and refractory bricks that are about to collapse. Dispose of the kiln skins and ensure that the temperature is appropriate before entering.
 

9. Entry personnel should wear safety protection measures, hard hats, safety belts, etc., and pay attention to avoid other safety risks.
 

10. Internal maintenance of grate cooler: Confirm that the relevant fan is in the designated state and the air cannon at the tail of the kiln is turned off.
 

11. In order to prevent personnel from unintentionally discharging in the kiln, the flap valve at the upper end of the kiln should be closed.
 

12. Before entering, first observe whether there are kiln skins and refractory bricks that are about to collapse. Dispose of the kiln skins and ensure that the temperature is appropriate before entering.
 

13. Entry personnel should wear safety protection measures, hard hats, and safety belts, etc., and pay attention to avoid other safety risks.
 

14. The coal mill system was overhauled to confirm that the coal mill and pulverized coal silo had been emptied.
 

15. Before entering the coal mill, pulverized coal warehouse and coal dust collection, ventilate the exhaust gas first.
 

16. To prevent burns due to controllable factors such as misuse, prohibit smoking, and catch fire.
 

17. When maintenance, gas cutting and electric welding are required, the plant manager and the safety department must be instructed to prepare safety measures such as raw powder, water and fire extinguisher materials in advance. And after the repair is completed, the construction environment can be cleaned before leaving. Be careful to avoid other security risks during this period.
 

18. Rotary kiln maintenance: During construction, confirm that internal and external personnel are in place, and coordinate and coordinate the command to achieve mutual coordination and complete high-quality maintenance at zero risk. Be careful to avoid other security risks during this period.
 

19. Maintenance of waste heat power generation system.
 

20. Organize unified and coordinated operations and cooperate to complete commissioning and installation.
 

22. The upper and lower intersections of the kiln head and kiln tail should cooperate with each other. When lifting materials, ensure that no one stays in the construction area and pay attention to avoid other safety risks.
 

III. Other maintenance and construction operations shall also implement the wearing of safety protection measures, as well as necessary safety measures such as electricity safety and fire prevention.


IV. Safety debugging after overhaul:


1. Handle the power transmission and startup procedures in accordance with the prescribed procedures.
 

2. When debugging the equipment, the operators and operators of all workshops should be in place, coordinated and coordinated with each other.
 

3. Before commissioning the equipment, the safety of the construction environment must be repeatedly confirmed. The contents include: whether the door, bolts and all auxiliary equipment are in the prescribed state. Whether the construction environment has been cleaned up during maintenance, whether materials, tools, sundries, etc. are left, and whether personnel have been completely evacuated. Pay attention to avoid other security risks during the period.

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