Grain mould-proof and insect preventive drier and production thereof

A production method and desiccant technology, applied in separation methods, chemical instruments and methods, botanical equipment and methods, etc., can solve the problems of black dust, affect the adsorption effect, easy to agglomerate, etc., and achieve large specific surface area and obvious effect. , the effect of high porosity

Inactive Publication Date: 2005-07-27
许庆华
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Problems solved by technology

[0009] Calcium chloride, calcium oxide (quicklime) and calcium chloride have better hygroscopic performance, but calcium chloride becomes liquid after absorbing moisture, which is easy to pollute food, and the same is true for table salt, which will return to moisture after absorbing moisture. It becomes powdery, which is also easy to pollute food; activated carbon has good moisture absorption and adsorption effect, but once it absorbs moisture, it is easy to agglomerate, thus affecting the adsorption effect, and there is black dust, forming secondary pollution

Method used

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Embodiment Construction

[0024] Below in conjunction with embodiment the present invention will be further described,

[0025] 1. Material selection: Select attapulgite clay and bentonite with good adsorption properties, and dry them in the sun after 20-60 days of natural weathering, and the moisture should be ≤13%.

[0026] 2. Ingredients (1) (percentage by weight): attapulgite clay 45%, bentonite 10%, water 43%, sulfuric acid (concentration is 98%) 2%.

[0027] 3. Acidification: the pH value of attapulgite clay and bentonite is ≥7.5. In order to improve the activity of attapulgite clay and bentonite and adjust its pH value, acidification treatment is required. Sulfuric acid is diluted and sprayed on attapulgite clay and bentonite After stacking for 24-48 hours, stir it evenly with a mixer, input it into a double-roller machine, extrude it into a mixture of attapulgite clay and bentonite flakes with a thickness of ≤2.5mm, and transport it to the cement floor to dry. The moisture should be ≤13%.

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Abstract

An insecticiding mildew-inhibiting desiccant for grains is prepared from attapulgite, bentone, calcium oxide, anthracite, ginger, garlica cloves, tangerine peel, red hot pepper, Chinese prickly ash, fennel and anise through acidifying, grinding, granulating, calcining, baking and mixing. Its advantages are high effect, no pollution and poison, and low cost.

Description

Technical field: [0001] The invention relates to a desiccant, in particular to a grain insect-proof and mildew-proof desiccant and a production method thereof. Background technique: [0002] At present, there are not many grain insect-proof and mildew-proof desiccants developed in my country, mainly including calcium chloride, calcium oxide, activated carbon and some Chinese herbal medicines. [0003] Chinese patent authorization announcement number: CN 1054025C, authorization announcement date: July 5, 2000, titled "grain pest control fungicide", discloses "a kind of grain control pest fungicide, which is composed of boride, calcium chloride It is mixed and ground with tangerine peel. Mixing it evenly into grains such as rice, corn, and wheat can obviously and effectively prevent pests and moldy deterioration in grain storage.” [0004] Chinese patent announcement number CN 1088386A was published on June 29, 1994, and the name is "a kind of mildew-proof and insect-repellen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/10A01N65/36A01N65/38A01N65/42A01N65/48A23B9/08B01D53/28
CPCY02A40/90
Inventor 许庆华
Owner 许庆华
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