Safety operation procedures for the hottest grate

2022-10-19
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Safety operation regulations of grate cooler

1 startup and shutdown sequence and precautions

1.1 startup sequence: first start the centralized grease lubrication pump, and then start the main motor of crusher and grate bed after the scraper conveyor is started; Then start the fans in each room according to the process requirements

1.2 shutdown sequence: the reverse process of startup

1.3 when the grate bed is started, the grate speed should be set at the lowest value

1.4 the clinker on the grate bed should be sent clean during shutdown

2 preparation before startup

2.1 confirm that the gap between the grate plates is generally within the range of 2 ~ 3mm, and the grate plate fixing bolts are locked

2.2 confirm that the seal of the cross drive shaft is intact and the lubricating oil circuit is unblocked

2.3 confirm that the seals between air chambers and shells are intact

2.4 confirm that the internal refractory materials are in good condition

2.5 confirm that the water spray system is normal

2.6 confirm that the air monitor is normal

2.7 confirm that the safety protection device is intact

3 inspection during operation

3.1 check whether the material distribution on the grate bed is uniform and the "Red River" phenomenon through the observation hole to judge the proportion of air volume

3.2 listen to whether there is abnormal sound in each part, observe the leakage particle size of each chamber from the observation hole of each air chamber, and judge the wear, burning and falling off of the grate plate

3.3 check the action of each distribution valve of the centralized oil supply pipe and the amount of oil supply

3.4 check whether the shell has material leakage and air leakage

3.5 check whether there are large pieces of materials stuck at the crusher inlet

3.6 observe whether there is a snowman in the front section, and open the air cannon in time to eliminate it

3.7 check whether the safety protection device is intact

4 maintenance after shutdown

4.1 check the wear and burning of the grate plate and whether the clearance changes

4.2 check the tightness of T-bolts in each room and the positioning of girder frame

4.3 during shutdown, to prevent the grate bed pressing material from burning the grate plate, increase the air volume and shorten the pressing time

4.4 regularly check and maintain the centralized oil supply lubrication system to prevent abnormal equipment damage

4.5 keep the safety protection device intact

5 common faults and treatment of grate cooler

5.1 the fixing bolts of grate plate are loose or fall off (fastened or replaced)

5.2 the clinker cooling effect is not good (adjustment operation)

6 centrifugal fan

6.1 startup and shutdown sequence and precautions

precautions: close the air inlet valve before starting the fan with high power

6.2 inspection before startup

6.2.1 confirm that the bearing lubrication is good and there is no foreign matter in the machine

6.2.2 confirm that all manual and electric air valves are flexible

6.2.3 confirm that all bolts are fastened

6.2.4 confirm that the safety protection device is intact

6.3 inspection during operation

6.3.1 check whether the motor operates smoothly and whether there is abnormal sound, vibration, temperature and odor

6.3.2 check whether the bearing temperature and oil volume are normal

6.3.3 check whether the fan operates smoothly and whether there is abnormal sound and vibration

6.3.4 check whether the outlet air duct leaks due to cracking

6.3.5 check whether the baffle display is consistent with the central control display

6.3.6 check whether the bolts are loose and fall off

6.3.7 check whether the safety protection device is intact

6.4 maintenance after shutdown

6.4.1 check the wear of fan blades and clean the dust on the blades

6.4.2 clean the bearing, check the bearing grease and lubricating oil, and supplement and replace them in time

6.4.3 check whether there are sundries in the fan

6.4.4 check whether the bolts are loose and fall off, and fasten and replace them in time

6.4.5 keep the safety protection device intact

6.5 common faults and treatment methods

high temperature of transmission part

cause: excessive load; Insufficient lubricating grease and bearing wear

treatment method: check whether there is contact between the operating part and the casing; Add lubricating grease as appropriate

7 grate cooler driving device

7.1 startup and shutdown sequence and precautions

7.1.1 startup sequence: after the conveying equipment is started, the dry oil lubrication system and crusher can be started in turn, and the driving device can be started

7.1.2 shutdown sequence: the reverse process of startup sequence

7.1.3 when starting the grate bed, the speed should be set to the lowest

7.1.4 during shutdown, the hot material on the grate bed should be sent clean

7.2 preparation before startup

7.2.1 confirm that the bearing lubrication is good and there is no foreign matter in the machine

7.2.2 confirm that the chain connection and engagement are intact

7.2.3 confirm that all bolts are fastened

7.2.4 confirm that the safety protection device is intact

7.3 check during operation

7.3.1 check whether there is abnormal sound and vibration between sprocket and chain

7.3.2 check whether the reducer has abnormal sound and vibration, and whether the bearing temperature is normal

7.3.3 check whether the motor has abnormal temperature, vibration, odor and sound

7.3.4 check whether the safety protection device is intact

7.4 daily shutdown and maintenance

7.4.1 regularly check the wear and lubrication of the sprocket

7.4.2 apply lubricating grease regularly

7.4.3 tighten loose bolts

7.4.4 regularly add and change oil, and pay attention to oil type and quantity

7.4.5 keep the safety protection device intact

7.4.5 keep the equipment clean and intact

8 centralized lubrication system

8.1 startup and shutdown sequence and precautions

8.1.1 startup sequence: first add appropriate lubrication to the oil tank with the refueling pump, and the dry oil pump will start automatically periodically

8.1.2 shutdown sequence: stop the switch of the control cabinet after all the lubrication point equipment has been shut down

8.1.3 precautions: there is enough oil in the oil barrel

8.2 preparation before startup

8.2.1 confirm whether the oil quantity and quality in the oil drum meet the requirements

8.2.2 confirm that there is no leakage in the distributor, oil pipe, elbow and bayonet

8.2.3 confirm that the automatic interval of the pump meets the requirements

8.2.4 confirm that the working pressure of the pump meets the requirements

8.3 inspection during operation

check whether the working pressure of the pump is normal for the multifunctional electronic tensile testing machine 8.3.1

8.3.2 check whether all oil supply points supply oil as required

8.3.3 check whether the distributor operates normally

8.3.4 check whether there is oil leakage

8.4 maintenance after shutdown

8.4.1 sundries are not allowed to mix in during refueling

8.4.2 it is not allowed to mix air into the pump, and it should be added at the lower limit of the oil level

8.4.3 it is not easy to work under high temperature for a long time to prevent the oil carbonization in the oil pipe

8.4.4 regularly replace the oil stored in the system

8.5 common faults and treatment

8.5.1 oil leakage from distributor, oil pipe, elbow and bayonet (leak proof treatment)

8.5.2 the oil in the oil tank of the dry oil pump overflows due to the failure of the limit switch (check the limit switch)

9 hammer crusher

9.1 startup and shutdown sequence and precautions

9.1.1 startup sequence: start the crusher after the conveyor of the zipper machine is opened normally

9.1.2 shutdown sequence: stop the crusher after the grate bed stops

preservatives should also be sprayed after maintenance. 9.1.3 precautions: prevent starting with load

9.2 preparation before starting up

47 year old Li claimed to have family difficulties. 9.2.1 confirm that all bolts are not loose and the coupling pin of the hammer is fastened

9.2.2 confirm that the gap between the hammer and the grate meets the requirements (25 ≤ mm)

9.2.3 confirm that the quantity and quality of lubricating oil meet the requirements

9.2.4 confirm that the tightness and wear of the transmission belt are normal

9.2.5 confirm that the shell is free of material leakage and damage

8.2.6 confirm that the safety protection device is intact

9.3 inspection during operation

9.3.1 check the motor temperature, bearing temperature and vibration

9.3.2 check whether the transmission belt is loose and broken

9.3.3 observe whether the particle size of crushed materials meets the requirements

9.3.4 check whether the safety protection device is intact

9.4 maintenance after shutdown

9.4.1 check the wear of all running parts and replace them if necessary

9.4.2 check whether the hammer coupling pin falls off and desolders

9.4.3 check whether there is fracture, bending deformation or long foreign matter

9.4.4 check tear and wear, and repair welding if necessary

9.4.5 keep the safety protection device intact

9.5 common faults and treatment of crusher

9.5.1 hammer head, grate bar and cavity wear (replacement)

9.5.2 loose and broken transmission belt (replacement)

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