Bag House

Bag House

Introduction• Location:

Bag house is located outside the converter area where the collected dust is sent by the dust control motors to the bag house

• Function:The bag house sucks all dust from converter with the help of dust collector motors and emits with the help of exit blower. The collected dust will form in bag house in the bags provided and most of the accumulated dust will be emitted by exit blower. Remaining will be emitted by screw conveyor and rotary valve motors and its assemblies where pressurized air is supplied by the bag house solenoids at specified time intervals which is controlled by timer controller circuit.

Bag House Equipment BoundaryComponent FunctionExaust Blower Sucks the accumulated dust with high power vacuum and emits with high power blowing.Case Bearings Rotates the motor assemblies with out any friction.

Screw Conveyor motor assembly Collect and Clean the accumulated dust inside the bag house and escalate the collected dust to upstream processRotary valve fan sprocket and chain drive Drives the rotary valve drum with the help of rotary vave motor and controls the exceeding action of the rotor.

Rotary valve assemblyEmits the dust which is collected by screw conveyor and pressurized air to outside with the help of wiping arms which is connected with the motor assembly.

Solinoid Valves Force the powerful pressure air in to the bag house to fell down the accumulated dust in the bags and its surroundings.

Magnetic door Controls the balanced air pressure inside the bag house and opens when balanced air exceeds.Access doors Opens while balanced air pressure exceeds.Dampers Allows the collected dust while normal running and blocks the dust in case of alarms.FRLS Filtering the dusty air, regulating the collected air and then allows to the process.Foundation Bolts Lock the motor assemblies and the bag house assemblies to the base.

INSPECTION THROUGH CLEANING

Unit Diagram Run/Stop

InspPoint Component

Inspection Standard Method Tool

Action in case of abnormality

Time(min) Freq

R 1 Exhaust Blower No vibration or abnormal noise present

Open and check 1 D

R 2 Baghouse motors Observe that no dirty air passing through exaust blower (at duct opening -outside building)

Open and check 3 D

S 3 Solenoid valves /Diverter valves

Valves operating properly. The air releasing sound is normal,soleniod valves basement mounting is properly, no air leakage

Tighten,cleanup replace

5 M

R 4 Magnetic Door magnetic door at the proper place ,and proper function of magnahelic

Tighten,cleanup replace

5 M

R 5 Flexible joints Inspect flexible joint between rotary,screw conv,enclosureand exaust blower, No air leakage is to be present

Tighten,cleanup replace

5 M

R 6 Screw Conveyor Drum Drum is rotating smoothly, rotation with out any noise

Open and check for friction

3 M

S 7 Access door Door has to be closed Check for high pressure, Close the door

1 M

S 8 Case bearings of Baghouse motors

No vibration or noise to be present, no abnormal temperature

Lubricate case bearings

5 M

S 9 Rotary valve fan sprocket and chain

No loose chain, no vibration or noise to be present, no abnormal temperature

Lubricate rotary fan sprocket and chain

5 M

S 10 Baghouse motors - exhaust blower, screw conveyor, rotary valve

No vibration or noise to be present, Exhaust Blower V Belt should not be loose

Remove the side cover of Exhaust blower ,Rotary and screw conv fans and Inspect the Impeller

12 M

R 11 Foundation bolts of all motors no vibration or noise to be present

Check ,replace 5 T

R 12 Check fire dampers &FRLS No loosen contacts,free open /close movement

Tighten,cleanup replace

5 T

3

1

2

4

57

8

6

9

1011

12

12

Issues•Bag chocking •Chain broken•RV jam•Blower belt damage•Bag Brocken•Explosion vent damage•Electric wire loose

Qualification