Dust Mitigation ProjectQueen Elizabeth’s School

The Brief•Design a hand held sweeping device that

will not only sweep up construction debris but will also provide an effective method to provide wetting/dampening of airborne dust & debris.

•Dust: Occupational Health Hazard▫Very Latent effects▫Silicosis epidemic in 20 years?

Critical Messages1. Dust has become a very serious problem

in the construction industry2. The broom is one of the causes for this

problem3. The solutions so far have not been very

effective or practical4. The shear simplicity of improving the

broom is good

Lymington Mews Visit•ERIC PD

•Hazards of water▫Chip Board ▫Electricity

Research•Existing Products

•Water pumping systems

Final Design

Valve System

Pump System

T-bar in two pieces

Dispersal system

Milled Shaft Assembled plunger

Pumping System

Dust Control

•Dry

•Wet

Water Dispersal

Costs•£12 to produce▫Substantially cheaper than other solutions▫Very cheap to repair and maintain▫Hollow polyethene terephthalate – design

storage container for water. ▫Nylon over polypropylene bristles. (Nylon

priced at £2.65 per unit). ▫Injection moulding 200 brooms per hour.

Costs - continued•Wage costs £0.17 per unit,

taking into account time and level of skill combined with legal requirements also followed.

•£0.45 per unit – Injection moulding. Quality and quantity ensured.

Conclusions and Future Aims•Meeting the specification•Fitting the brief•Better than the common

solution

• Improvements

Sources for this Presentation• Bin the Broom:http://www.wates.co.uk/sites/all/modules/filemanager/files/Publications/Teamtalk_Spring_2014_LOW_RES.pdf (Page 8)• Clean Air Take Care:http://www.safetygroupsuk.org.uk/topics/cleanair.htm • Water gun Picture:http://www.huffingtonpost.co.uk/2014/07/23/best-water-guns_n_3597537.html • Broom Picture:http://www.argos.co.uk/static/Product/partNumber/1914827.htm&sa=U&ved=0CBgQwW4wAWoVChMI5IPCg4WryAIVDGsUCh2kYQY_&usg=AFQjCNErEuO_AuFs6D1uL8VXWMoBwRchkg