Cleaning and Dust-Proof Maintenance of Construction Waste Chutes

After long-term use, the inner wall of construction waste chutes accumulates mortar and dust; regular cleaning and dust-proof maintenance are important. This article introduces cleaning and dust-proof maintenance methods.

1. Why Cleaning Is Needed

Adhered mortar increases chute resistance

Dust affects smooth flow

Caked blocks cause blockage

Affects service life

1. Cleaning Frequency

III. Cleaning Methods

1. Water Flushing

Pour water from the top

Use water flow to scour the inner wall

Drain water at the bottom

Suitable for mortar-type adhesion

2. Mechanical Cleaning

Clean through inspection openings with a long-handled brush

Attach a wire brush to a long rod

Remove stubborn caked material

Suitable for local cleaning

3. Chemical Cleaning (Optional)

Use a weakly acidic cleaner to dissolve mortar

Rinse thoroughly

Pay attention to environmental protection

Generally not recommended

4. Pig Cleaning

Use a rubber ball close to the pipe diameter

Insert from the top

Rely on gravity to descend and clean

Suitable for long chutes

1. Cleaning Steps

Stop use

Close feed inlet

Pour water from top (or insert cleaning ball)

Catch water/waste at the bottom

Observe cleaning effect

Repeat until clean

Check cleaning at inspection openings

1. Dust-Proof Maintenance
2. Joint Sealing

Inspect sealing rings regularly

Replace promptly if dust leakage is found

Ensure joint sealing

2. Feed Inlet Door

Keep the door closed

Sealing strip intact

Reduce fugitive dust leakage

3. Bottom Dust Removal

Collection hopper sealed

Dust suction port operating normally

Spray dust suppression

4. Outer Surface Cleaning

Wipe outer surface regularly

Check for aging

Keep signs legible

1. Cleaning Precautions

Set up a warning zone below the chute during cleaning

Collect and treat flushing water (contains mortar)

Do not use highly corrosive cleaners

Inspect chute integrity after cleaning

Prevent freezing in winter (drain after flushing)

VII. Dust-Proof Upgrades

If dust-proofing is poor:

Replace sealing rings

Add sealing strips to the feed inlet door

Add negative-pressure dust removal at the bottom

Add spray at the feed inlet

Wrap the chute exterior with sealing material

VIII. Longkang Cleaning and Maintenance

Provide cleaning guide

Supply sealing rings and other dust-proof accessories

Can provide dust-removal upgrade solutions

Regular follow-up visits to guide maintenance