Process for making pet food
A food and product technology, applied in the field of pet food, which can solve the problems of kibble wear, expensive kibble, fine debris, etc.
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example I
[0108]A large bag of uncoated pet food kibble was loaded onto the platform above the feed hopper of the vibrating screw elevator. The kibble is approximately 10mm in diameter. The vibration amplitude of the screw jack is about 5 mm and the vibration frequency is about 5 Hz. The feed hopper can hold approximately 200 kg of uncoated kibble, and the kibble is readily transferred from the bag to the hopper by gravity to keep the hopper full. The hopper is mounted on the loading chamber and the screw conveyor feeder is at the bottom. The debridger in the hopper rotates around the hopper about once a minute to keep the kibble evenly distributed within the hopper. The hopper and screw conveyor act as a loss-in-weight feeder for the vibrating screw elevator. The feed system and vibratory screw elevator were operated using a visual software interface through a computer screen. The vibrating screw jack consists of 8 sets of stainless steel pipe coils with a diameter of 84mm, which w...
example II
[0110] The procedure described in the previous example was repeated, except that steam was injected through the ports into the two sets of top coils to heat the kibble in a moist environment to kill microorganisms including salmonella. Steam is injected through a port on one side of the coil and exhausted at the other side of the coil through an exhaust manifold attached to the coil. The tubes were heated to about 125°C to prevent condensation of steam in the tubes. While inside the tube, the steam contacts and processes the entire "fluidized" kibble. Processed kibble product exits the unit at the top and travels through piping to a vibrating fluidized bed cooler. The vibrating fluidized bed cooler was a closed rectangular unit with a bed plate made of stainless steel perforated with 2mm holes. The base board has a porous polyester cloth layer (aperture 63mm). Below the bed plate is an air manifold. A forced blower blows air into the air manifold, which then travels up thr...
example III
[0112] figure 1 and 2 The vibrating screw jack shown in consists of approximately 6 meters of approximately 89 mm internal diameter stainless steel tubing that is twisted around a central cylinder into a helix approximately 0.92 meters in diameter. The pipe helix has four bent loops. The inclination of the pipe helix is about 3 degrees from horizontal. There are four sets of component addition ports on each bent ring, spaced 90 degrees apart. The central cylinder within and attached to the pipe helix is mounted on rubber suspension supports which allow limited horizontal and vertical movement of the cylinder when force is applied to it. The center cylinder is vibrated using two motors with offset weights on one of the sides of the cylinder. The motors were positioned 45 degrees from horizontal and offset 90 degrees from each other. The motors with offset weights are synchronized with each other so that both horizontal and vertical acceleration are provided to the cent...
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