C Slatted floors

Waste materials are worked through the slats by the animal traffic into a storage tank or alley below. Most slats are constructed of reinforced concrete (fig. 1011); however, some are made of wood, plastic, or aluminum. They are manufactured either as individual units or as gangs of several slats. Common slat openings range from 3/8 inch to 1 3/4 inches, depending on animal type. For swine, openings between 3/8 and 3/4 inch are not recommended.

Slats are designed to support the weight of the slats plus the live loads (animals, humans, and mobile equipment) expected for the particular facility. Reinforcing steel is required in concrete slats to provide needed strength.

Figure 10-7 Flush and gravity flow gutters for swine manure

Gutter

Pen length

Pen length

Gutter

Slope gutter bottom

Optional emergency overflow (use only if outlet is gas trapped)

Treated timber cover over pit, with hole for valve handle

Pen floor

Optional emergency overflow (use only if outlet is gas trapped)

Treated timber cover over pit, with hole for valve handle

Pen floor

Insulation (where needed)

To storage

Insulation (where needed)

To storage

Figure lO-8 Gravity gutter for dairy manure

Manure incline plus dam height (6 in. typical + 3 in. grates)

Cross section along stalls

Manure incline plus dam height (6 in. typical + 3 in. grates)

Cross section AA

Figure lO-9 Shuttle-stroke gutter cleaner

Figure lO-lO Chain and flight gutter cleaner

Figure lO-ll Concrete gang slats

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Isometric section A A

Isometric section A A

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