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A kind of technological method of making edible magnesium chloride by shotcrete granulation

A technology of spray granulation and process method, applied in the direction of magnesium chloride, magnesium halide, etc., can solve the problems of troublesome screening, low productivity, poor particle size of edible magnesium chloride, etc., and achieve good fluidity, high product efficiency and simple process flow Effect

Active Publication Date: 2017-08-25
南通江海港建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of poor granularity of edible magnesium chloride, troublesome screening and low productivity, the invention provides a process for preparing edible magnesium chloride by spraying and granulating

Method used

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  • A kind of technological method of making edible magnesium chloride by shotcrete granulation

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Effect test

Embodiment 1

[0021] A process method for preparing edible magnesium chloride by spraying granulation method, including:

[0022] (1). Dissolution and refining reaction: industrial magnesium chloride is refined by dissolving, decolorizing, removing heavy metals, and filtering through a refining reactor, and the filtrate is transported to the concentration reactor;

[0023] (2). Concentration reaction: Concentrate the filtrate to saturation, at which time the magnesium chloride content is 47%, heat it to 100°C, and send it to the top of the tower for spraying;

[0024] (3) Shotcrete: spray the concentrated liquid on the top of the shotcrete drying tower, control the speed to 500 rpm, adjust the flow rate, and adjust according to the particle size: large particle flow decreases, small particle flow Increase, the blower sends the 30℃ cold air cooled by the water-cooled heat exchanger into the shotcrete drying tower to fully contact the shotcrete material, instantly cools and solidifies the slurry, so...

Embodiment 2

[0026] A process method for preparing edible magnesium chloride by spraying granulation method, including:

[0027] (1). Dissolution and refining reaction: industrial magnesium chloride is refined by dissolving, decolorizing, removing heavy metals, and filtering through a refining reactor, and the filtrate is transported to the concentration reactor;

[0028] (2). Concentration reaction: Concentrate the filtrate to saturation. At this time, it contains 46% magnesium chloride, heat it to 80°C, and send it to the top of the feed tower for spraying;

[0029] (3) Shotcrete: spray the concentrated liquid on the top of the shotcrete drying tower, control the speed to 500 rpm, adjust the flow rate, and adjust according to the particle size: large particle flow decreases, small particle flow Increase, the blower sends the 25℃ cold air cooled by the water-cooled heat exchanger into the shotcrete drying tower to fully contact the shotcrete material, instantly cool and solidify the slurry, so a...

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Abstract

A process method for preparing edible magnesium chloride by spray granulation, comprising: (1). Dissolution and refining reaction: industrial magnesium chloride is purified by dissolving, decolorizing, removing heavy metals and filtering in a refining reactor, and the filtrate is transported to a concentration reactor; (2) ).Concentration reaction: Concentrate the filtrate to saturation, heat it to 80℃-100℃, and send it to the top of the material-making tower for slurry spraying; (3). Carry out spraying, control the speed to 500 rpm, adjust the flow rate, and send air at room temperature through the blower to fully contact with the shotcrete material in the tower, instantly cool down and solidify the slurry, and the material is transported and packaged from the bottom of the tower. It is evacuated with the induced draft fan; the advantages of the invention are that the technological process is simple, the magnesium chloride particles at the production place are in the shape of beads, the diameter is 0.5-1.0mm, the fluidity is good, it is convenient to use various conveying machinery, the dissolution in the food industry is fast and uniform, and the product benefits high.

Description

Technical field [0001] The invention relates to the technical field of magnesium chloride preparation, in particular to a process method for preparing edible magnesium chloride by a spray granulation method. Background technique [0002] At present, the production of edible magnesium chloride in our country generally uses saturated solution, which is made into flakes under high temperature conditions. There are also a few manufacturers that use the crystallization method. These two products have low technical content, and the product price is generally 1800 yuan / ton, mainly because the product has a bad appearance, is flaky, 1-10mm, large in size, and has no fluidity. During use, mesh screens or general conveying machinery cannot be used, relying on manual labor, which seriously affects labor productivity. Summary of the invention [0003] In order to solve the problems of poor granularity of edible magnesium chloride, troublesome screening and low productivity, the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F5/30
Inventor 闫超良
Owner 南通江海港建设工程有限公司
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