HOG SLAT BLOG – U.S.

New Product Introductions at IPPE 2017 0

 

Georgia Poultry booth at 2017 IPPE show

Georgia Poultry booth at 2017 IPPE show

Georgia Poultry highlighted two new products, scheduled for release later this spring, at this year’s show in Atlanta.

Classic Flood Light Kit illuminates control pan to encourage bird activity.

The Classic Flood Light Kit provides supplemental light to attract birds to the end control pan. The elevated activity level increases feed line run time to keep the feeders full, particularly when starting a new flock.

 

The Classic Flood Light Kit installs under the control unit directly projecting light into the feed pan below. This arrangement eliminates the shadows common with other add-on kits that mount on top or to the side of a control unit.

Six, long-lasting LED lights.

Six, long-lasting LED lights.

The mounting plate features six; long-lasting LED lights separated into two banks on either side of the feed pan. The kit can be installed on any existing Classic Flood control pan and is hardwired directly into the control unit. This integration into the control unit removes the need for additional power cords or outlets.

GrowerSELECT sprinkler control with drop assemblies.

GrowerSELECT sprinkler control with drop assemblies.

 

The GrowerSELECT Sprinkler System offers producers a system to increase bird activity for improved weight gain and more efficient heat removal.

 

The system turns on at short preset intervals sprinkling the birds with large water droplets.   As the droplets hit the birds, they stand and release captured heat underneath allowing ventilation airflow to remove it from the building.

 

This elevated activity also causes the birds to migrate to the feeders and waters promoting increased weight gain and improved feed conversion.

 

Low pressure (50 psi), rotating sprinkler assemblies cover approximately 450 square feet each and are available in different drop lengths to match varying building configurations.

 

The HSWS-01 control unit automatically increases the run time and frequency of the system operation to cope with increasing heat stress as the building temperature increases.

 

Look for more information on these new products on our blog, website, and Facebook page later this spring.

Simple Primer on How Galvanizing Protects Metal 0

Hog Slat bins feature the industry's heaviest galvanized coating.

Hog Slat bins feature the industry’s heaviest galvanized coating.

Steel corrosion, commonly referred to as rust, is an oxidization process occurring when iron in steel is exposed to oxygen and water. Rust causes steel to thin over time, reducing its strength and causing product failure.

Paint coating protect steel  from elements until damaged.

Paint coating protects steel from elements until damaged.

Any coating, which provides a barrier to moisture and oxygen, protects steel from corrosion. A painted surface provides an effective barrier until it is broken allowing moisture and oxygen to come in contact with the steel beneath. Rust develops at the breakage point and can even extend under the protective paint barrier.

Galvanized coatings protect steel even when damaged.

Galvanized coatings protect steel even when damaged.

Similar to paint, a galvanized coating forms a protective barrier to protect steel from moisture and oxygen. Galvanized coatings also provide a second method of protecting steel by electrochemically “sacrificing” the zinc in the present of corrosive elements.   In other words, the zinc corrodes, until it is depleted, instead of the metal underneath. Because it is physically bonded to the metal, galvanized coating does not allow rust to extend beneath its surface.

Heavier G100 galvanized coatings offer 10% longer service life.

Heavier G100 galvanized coatings offer 10% longer service life.

Galvanized coatings are expressed in ounces per square ft with conventional coatings designated as G30, G40, G60, and G90. These refer to thickness of .30, .40, .60 and 90 oz./ft2, respectively. Corrosion resistance is directly proportionate to the amount of zinc coating on the steel. Therefore we would expect the service life of G90 steel to be roughly three times that of G30 in the same environment. Likewise, increasing the galvanized coating on a feed bin from G90 to G100 increases the bin’s service life by 10%.

Galvanized steel is an excellent choice for use in feed bin fabrication, as it does not degrade when exposed to the sun’s ultraviolet rays like painted coatings or poly bins.

In addition to heavier galvanized coatings, Hog Slat bins are manufactured from stronger Grade 55 steel, come with an improved ladder design and water deflecting Weather Edge™. Every bin is backed by an extended 5-year warranty. To see more go to Bulk Feed Bins.

 

Choose the Right Heater for Poultry Brooding 0

By Paul Horne, Gas-Fired Products Inc.

brooder-feature-image

 

Radiant heat has gained wide acceptance across the industry for heating the brooder area of poultry houses.   Because radiant heat delivers heating energy directly to the birds and floor, radiant offers significant advantages compared to forced air heat including; 15-25% more efficiency, drier litter, and creating a heat-storing thermal reservoir for the birds at floor level.

 

An additional benefit is the varying temperature gradients allowing the birds to seek their particular comfort zone. Temperature distribution graphs represent the heat profiles for each radiant heating product. Knowing the expected heating pattern for each style of radiant heater helps producers choose the best product for their particular application.

In the following diagrams, we show typical layouts for a 66′ x 300′ center brooder area for each type of radiant heaters. These are general layouts and not unique to a particular building design or geographical area. Each facility requires a heat loss calculation to determine the actual Btu/hr. needed.

 

 

Heating pattern for Gro40 brooder

Heating pattern for GRO40 brooder

 

 

40,000 BTU brooders with a round canopy project an even, circular heat pattern on the surface below. The emitter extending below the canopy reduces center hot spots and increases the overall diameter of the heat pattern.

 

Brooders normally have the lowest initial cost and offer a broad range of equipment options, including direct spark or pilot ignition systems which can be controlled individually or in zones. Installation is straightforward and flexible, allowing for multiple floor layouts. Brooders can be winched to different heights during the flock to change the heat pattern. Stainless brooders offer added corrosion protection for houses using litter treatments. It is important to thoroughly clean brooders after each flock to maintain optimal efficiency.

Heating pattern for GROTube

Heating pattern for GROTube

 

Straight radiant tube brooding systems deliver a large pear-shaped heat profile with the highest floor temperatures located directly under the first tube and with lower temperatures at the far end. Typical tube lengths range between 30 ft.-60 ft. long with heating capacities ranging between 100,000 to 150,000 Btu/hr.

 

Straight tube heaters are mounted near the ceiling and are not raised and lowered like radiant brooders. Each model has a recommend mounting distance from the ceiling based on clearance to combustibles. Because straight tube heaters draw fresh air from outside the brood chamber, there is less maintenance than systems that bring their combustion air from inside the house.

Tube heaters have the advantage that they can be either a single stage or a two-stage unit, where the low fire will result in a different and smaller heat pattern.

heating profile of Big Foot heaters

heating profile of Big Foot heaters

 

Another radiant product type is the U-Tube heater, which offers an improved rectangular heat pattern when compared with the straight tube heaters. Because the heat inputs are lower, the hot spot under the burner is less intense than with the larger heat input straight tube heaters. Angling the reflectors towards the building sidewalls results in extended heating footprint. Sizes range from 12 ft. to 15 ft.long rated at 60,000 – 90,000 Btu/hr.

 

U-Tube heaters share the same advantages and disadvantages common to all tube heaters; higher installation costs along with the convenience of being mounted up out of the way and reduced maintenance.

 

Their biggest advantage lies in the improved heat patterns. The heat patterns are larger with a more rectangular shape than brooders and more even temperature distribution than straight tube heaters. The rectangular heating profile of U-Tube heaters provides uniform heat distribution throughout the brood area. Chicks can easily move in and out of the temperature gradations seeking their individual comfort zones.

 

 

Balancing a Tunnel Ventilation System 0

By Austin Baker
Ventilation Director, Hog Slat Inc.

Windstorm 54" fans

Windstorm 54” fans

As the industry continues to increase wind speeds in broiler houses, we need to be mindful of maintaining a balance in a tunnel ventilation system.   A ventilation system operating at a high static pressure does not necessarily mean it is optimized for wind speed.

 

I was recently called on to troubleshoot the ventilation system on a new broiler farm. The owner was concerned because the static pressure in the new buildings was running between .10″ and .14″ while the static pressure in several older buildings of similar size was closer .20″ – .22”. He suspected the fans in the newer buildings might not be operating correctly and not delivering their maximum ventilation rates.

Inexpensive WeatherFlow wind meter for smartphones

Inexpensive WeatherFlow wind meter for smartphones

We selected a spot 50′ in front of first tunnel fan and recorded a reading of 715 fpm with a static pressure of .22″ in the older facility. In the new building recordings from a similar location registered 805 fpm with a static pressure of only .14”. In other words, the new house was operating with a lower static pressure but still delivering almost 100 fpm higher wind speed.

 

In fact, we were able to increase wind speed and reduce the static pressure in the older house by shutting off two fans. The static pressure went down to .12″, and the wind speed accelerated to 770 fpm.

 

 

Here’s a simple test to perform in any house to find the balance point. Put the house in full tunnel mode and pick a spot 50’ in front of your fans to measure wind speed. Take a measurement with all fans running and then turn off a fan. Go back to the original measuring point and take another reading. If the wind speed went down then, the system is operating correctly. If it stayed the same or went up, then continue the process until you see a drop in airspeed. This exercise will tell you if you need to take action to correct the restrictions on the system. For example, cool cell pads may be clogged or not sized correctly, or the tunnel doors are restricting the airflow.

The Field Guide to Slat Repair and Replacement 0

screen-shot-2016-12-20-at-12-14-31-pmHog Slat Inc. teamed up with Vanberg Specialized Coatings and Altenburg Construction to produce a working guide for swine producers covering the repair and replacement of concrete slats.

Vanberg Specialized Coatings pioneered the use of cement and epoxy-based coatings specifically developed for use in animal confinement facilities.   Working with producers from across the world, company founder Paul Vanberg formulated practical repair products for concrete surfaces and slats.

Altenburg Construction replaces over 20,000 slats in the upper Midwest region.  Owner Andy Altenburg and Project Manager Tyler Sauck are experts in identifying potential problems with defective slats and beams.

Download your free copy of  The Field Guide to Slat Repair and Replacement.