Method and device for separating metal particles from rice flour

Abstract

The invention provides a method and device for separating metal particles from rice flour. The device is characterized in that a feeding hopper is arranged on a crushing box; a feeding plate inclining downwards is arranged under the feeding hopper; spiral blades are arranged on a crushing rotary shaft in the crushing box; a vibratory screen is arranged under the crushing rotary shaft; an extracting pipe is arranged at one side of the vibratory screen, and the other end of the extracting pipe is connected with the upper end of the crushing box; a first-stage filtering net is arranged under the vibratory screen; a V-shaped metal-particle adsorber is arranged under the first-stage filtering net, two side plates of the V-shaped metal-particle absorber are provided with first-stage electromagnets, and the bottom part of the V-shaped metal-particle absorber is provided with a second-stage filtering net; a second-stage electromagnet is arranged under the second-stage filtering net; and a discharging pipe is arranged at one side of the second-stage electromagnet. The method for separating metal particles from rice flour comprises the following steps: primarily crushing, secondarily crushing, primarily separating, secondarily separating and bagging rice flour. The method and device provided by the invention have the advantages that the produced nutritional rice flour is not doped with metal chips, is sanitary and safe to eat and uniform and fine in size, and has better water regaining characteristic and brewing characteristic.

Description

technical field [0001] The invention belongs to the technical field of food processing machinery, and relates to a method and a device for separating metal particles in rice noodles. Background technique [0002] In the process of preparing nutritional rice noodles for infants and young children, the rice flakes made by drum drying need to be pulverized into powder to make nutritional rice noodles for infants and young children. At present, the pulverizers for crushing rice flakes have uneven crushing, and the crushed nutritious rice noodles are of different sizes, resulting in poor water absorption and reconstitution properties of the nutritious rice noodles. Adding water is easy to form agglomerates, and the taste is rough and not delicate. Children are prone to indigestion after eating. Secondly, during the pulverization process, the helical blades of the pulverizer tend to rub against the wall of the pulverizer to produce metal fragments that remain in the nutritious ric...

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Problems solved by technology

[0003] The invention aims at the problem that the rice flake grinder in the prior art has uneven grinding, and the helical blade of the grinder is easy to rub against the wall of the grinder to produce metal powder remaining in the nutritious rice flour, resulting in unsafe food. The invention provides a The method and device for separating metal particles in rice flour, the specific scheme is: a device for separating metal particles in rice flour, a feeding hopper is installed on the crushing box of the device, and a downward-sloping feeding hopper is installed below the feeding hopper There is a crushing shaft installed in the crushing box, and a spiral blade is installed on the crushing shaft. One end of the crushing shaft is connected to the crushing motor. A vibrating screen is installed under the crushing shaft. The vibrating screen is connected to the vibrating motor. The crushing box on one side of the vibrating screen A pumping pipe is installed on the top, a pumping pump is installed on the pumping pipe, the other end of the pumping pipe is connected to the upper end of the crushing box, a primary filter is installed under the vibrating screen, and a "V" shape is installed under the primary filter. The metal particle adsorber is equipped with a primary electromagnet on both sides of the metal particle adsorber, a secondary filter is installed at the bottom of the metal particle adsorber, and a secondary electromagnet is installed on the crushing box below the secondary filter. A discharge pipe is installed on the crushing box on one side of the electromagnet, a discharge pump is installed on the discharge pipe, and the other end of the discharge pipe is connected to the charging bag

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