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Limestone drying agent and preparation method thereof

A desiccant and lime technology, applied in the field of lime desiccant and its preparation, can solve the problems of easy burns, inability to improve the safety of the desiccant from the root, and water temperature rise, etc., so as to avoid burn injuries, reduce energy consumption, Guaranteed taste effect

Active Publication Date: 2018-06-22
GUANGDONG STRONG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing lime desiccants are packaged after crushing quicklime into granules. When the lime desiccant enters the water, the lime particles contact with the water, a chemical reaction occurs, and a large amount of heat is generated, which causes the water temperature to rise sharply, and burn accidents are prone to occur.
Although some lime desiccants use packaging materials with high tear strength to reduce the possibility of the desiccant being opened, it still cannot fundamentally improve the safety of the desiccant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment discloses a lime desiccant and its preparation method. Specifically, the lime desiccant is in the form of granules, the core of which is lime particles, and the shell is wrapped with a porous hydrophobic material. The weight ratio of the lime particles to the shell hydrophobic material is It is 1:0.02; its hydrophobic material is palm stearin. The preparation method of lime desiccant in this example is as follows:

[0023] (1) In the batching tank, mix 1 part of palm stearin with 99 parts of n-hexane, turn on the stirring blade, and mix at 60 r / min for 15 minutes until the palm stearin is completely dissolved to form a mixed solution of palm stearin and n-hexane;

[0024] (2) Pump the mixed solution in step (1) into the auger mixer, and at the same time, transport the lime particles to the auger mixer at a ratio of 3:1 (lime particles: palm stearin n-hexane mixed solution) through the conveyor belt. In a mixer, mix for 2 minutes and mix thoroughly;

[...

Embodiment 2

[0031] This embodiment discloses a lime desiccant and its preparation method. Specifically, the lime desiccant is in the form of granules, the core of which is lime particles, and the shell is wrapped with a porous hydrophobic material. The weight ratio of the lime particles to the shell hydrophobic material is It is 1:0.03; its hydrophobic material is glyceryl monostearate. The preparation method of lime desiccant in this example is as follows:

[0032] A. In the batching tank, mix 5 parts of glyceryl monostearate with 95 parts of absolute ethanol, turn on the stirring blade, and mix at 60r / min for 20min until glyceryl monostearate is completely dissolved to form glycerol monostearate Mixed solution of ester and absolute ethanol;

[0033] B. Pump the mixed solution in step A into the auger mixer, and at the same time, transport the lime particles to the auger through a conveyor belt in a ratio of 3:1 (lime particles: glycerol monostearate anhydrous ethanol mixed solution) I...

Embodiment 3

[0040] This embodiment discloses a lime desiccant and a preparation method thereof. Specifically, the lime desiccant is in the form of granules, the core of the granule is lime particles, the outer shell is wrapped with a hydrophobic material, and the hydrophobic material layer is distributed with a plurality of holes; the lime particles The weight ratio to the hydrophobic material of the shell is 1:0.03; the hydrophobic material is paraffin. The preparation method of lime desiccant in this example is as follows:

[0041] (a) In the batching tank, mix 1 part of paraffin with 99 parts of n-hexane, turn on the stirring blade, and mix at 60 r / min for 15 minutes until the paraffin is completely dissolved to form a mixed solution of paraffin and n-hexane;

[0042](b) Pump the mixed solution in step (a) into the auger mixer, and at the same time, transport the lime particles to the auger mixer through a conveyor belt in a ratio of 3:2 (lime particles:paraffin n-hexane mixed solution...

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PUM

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Abstract

The invention discloses a limestone drying agent and a preparation method thereof. The limestone drying agent is prepared from limestone dry particles; the limestone dry particles are prepared from limestone particles serving as cores and porous hydrophobic material layers serving as shells; the limestone particles are 0.1 to 0.4mm in particle diameters; the weight ratio of the limestone particlesto the hydrophobic material is 1 to (0.01 to 0.05). The limestone drying agent is characterized in that the surfaces of the limestone particles are uniformly coated with the hydrophobic material, theconsumption of the hydrophobic material is low, and the cost is low; meanwhile, in the preparation process of the limestone drying agent, an organic solvent is effectively recycled, so that the energy consumption can be lowered, alcohol and other organic solvents evaporate fully, and peculiar smell is avoided.

Description

technical field [0001] The invention relates to the field of desiccants, in particular to a lime desiccant and a preparation method thereof. Background technique [0002] Lime desiccant is a common food desiccant in the market, which is used to maintain low humidity in food packaging bags and prevent moisture from affecting food quality. However, most of the existing lime desiccants are packaged after crushing quicklime into granules. When the lime desiccant enters the water, the lime particles come into contact with the water, a chemical reaction occurs, and a large amount of heat is generated, so that the water temperature rises sharply, which is prone to burn accidents. Although some lime desiccants use packaging materials with high tear strength to reduce the possibility of the desiccant being opened, it still cannot fundamentally improve the safety of the desiccant. Therefore, it is necessary to prepare a new type of lime desiccant, which can prevent the large-area con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/81B01D53/46
CPCB01D53/46B01D53/81B01D2257/80
Inventor 李永军邬少明
Owner GUANGDONG STRONG GROUP
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