mcm mud agitator free sample

Derrick mud agitators include an explosion-proof, “C” faced motor, reduction gearbox (helical-bevel gears for horizontal agitators or all helical gears for vertical units), impeller, and shaft with assembly bushings. Motors range from 5 to 30 HP and may be supplied in several power configurations.

Attaching the motor directly to the gearbox protects correct alignment that can increase bearing life and provides 95 percent efficiency in power transfer to the impeller. Using this superior design surpasses standard worm drive gear assemblies by 30 percent, allowing Derrick agitators to do the same work at far less horsepower. By unitizing the motor and gearbox, weight and space requirements are reduced. Horsepower, mechanical configuration, impeller diameter, and shaft length are customized to tank dimensions and maximum mud weights. Available horsepower ratings* are: 5, 7.5, 10, 15, 20, 25, and 30.

In our study, the estimated effect of biogas exposure on diarrhea was slightly stronger among children in households that used biogas as their primary stove at baseline, though the difference in point estimates was insignificant. It is possible that children in households using biogas stoves since the beginning of the study were more likely to be exposed to fecal pathogens from biodigesters. Given that households received the intervention at different time points throughout the study period, the duration of biodigester ownership and use may be correlated with the likelihood of mixing slurry by hand due to broken agitators, which occurred frequently in the study area. Future studies should assess frequency and duration of biodigester use; frequency of broken agitators or mixing slurry with hands; handwashing after biodigester use; and fecal contamination of hands, stored drinking water, and floors after biodigester use. Researchers should consider using a randomized controlled trial design and account for intervention compliance in their analysis (i.e., per-protocol analysis).