What should be paid attention to during the storage of lime

There are 5 main points:

1. Quicklime (including lump ash and quicklime powder) has strong water absorption and hygroscopicity, so it should be moisture-proof and must be stored in a dry environment. When bulk ash is stored outdoors, it should be covered with a pad, and attention should be paid to rain and moisture.

2. Quicklime powder should be stored in containers, and bagged quicklime powder should be stored in warehouses and sheds.

3. The storage period of block ash shall not exceed 1 month, and it is best to spray ash with it, so as to change the storage period of block ash into an aging period.

4. In order to completely dissolve the lime, the storage of lime slurry must have an aging period of more than 14 days in the ash pit, so as to avoid the undigested particles in the lime from being mixed into the mortar.

When the lime slurry is stored in the ash pit, the surface should be covered with 10 15 cm thick wet sand or wet soil, so that the lime slurry will not deteriorate for more than 1 year.

5. Attention should be paid to fire prevention and explosion proof in the storage and transportation of quicklime. Because quicklime is cooked in water, a large amount of heat is released to prevent burning of vehicles and ships or causing disasters. Special attention should be paid to the fact that quicklime cannot be mixed with flammable, explosive and liquid items, so as not to cause disasters.

Do not store in metal containers, isolate from air as it reacts with water and CO2, and do not come into contact with or mix with acids.

Hello, lime can be used to store food, it is a year, but damp lime can not be stored for that long, half a year or less. Pure lime (that is, calcium oxide) is used as a desiccant, so if the stupid fruit is damp, the shelf life does not exist, generally about one year. Note:

Although lime desiccant can be put into food, can play a corresponding role, but lime desiccant is also a certain impact on the body, it is best to open the food packaging bag, can be completely removed lime desiccant, mainly to throw away the social desiccant, do not let children come into contact.

Dear, I am glad to answer for you: how long does the storage period of limestone expire after A: Dear, hello, the storage period of digested lime can not be more than three months, and the validity period of limestone reference materials is one year.

There is no very clear statement about the shelf life of lime, but there is a possibility that lime can deteriorate. If we see that the lime in our home is lumpy or damp, then it can no longer be used. The main component of lime is calcium oxide, which was the first cementitious material to be applied by humans.

Lime is used in a wide range of applications, it is a very common building material, and it can also be used in the pharmaceutical industry. When we usually use lime, we must be careful not to let it enter the mouth, if this situation accidentally happens, we must immediately rinse our mouth with water and go to the hospital in time.

Quicklime should pay special attention to waterproof and rainproof, because once the water enters the water, the quicklime will dissolve, and the process will be rapidly heated, and some quicklime will even explode in the process of digestion. Therefore, special attention should be paid to transportation and storage so as not to get wet in rain and water.

Waterproof, moisture-proof, keep dry, preferably sealed packaging to avoid contact with acids.

Waterproof, rainproof, keep dry, cover well with a tarpaulin.

1. The shorter the operation time, the better, and place it in the appropriate place in the packaging container to play the role of sealing and moisture absorption.

2. Store in a dry warehouse, moisture-proof, and avoid contact with acids.

3. Avoid moisture during transportation and handle carefully to prevent packaging damage and affect product quality.

4. It is forbidden to eat, in case of entrance, rinse your mouth with water and seek medical attention immediately. (Remember not to drink water).

Quicklime generally contains over-fired lime, which matures slowly, and if it is cured after the lime slurry is hardened, it will cause uplift and cracking due to the expansion produced by curing. In order to eliminate this hazard of over-fired lime, the lime should be "aged" for about 2 weeks after it is cured.

Uses of quicklime.

1. Used as raw materials, it can be used to manufacture calcium carbide, soda ash, bleaching powder, etc., and is also used for tanning, wastewater purification, calcium hydroxide and various calcium compounds;

2. It can be used as a flux for building materials, metallurgical flux, cement quick-setting agent, and phosphor;

3. Used as vegetable oil decolorizing agent, drug carrier, soil conditioner and calcium fertilizer;

4. It can also be used for refractory materials and desiccant;

5. It can be used to prepare agricultural machinery glue and underwater epoxy adhesive, and is also used as a reaction agent for pre-reaction with 2402 resin;

6. Used for acid wastewater treatment and sludge conditioning;

7. It can also be used as a boiler deactivation protectant, using the moisture absorption capacity of lime to keep the metal surface of the boiler water vapor system dry and prevent corrosion, and is suitable for long-term deactivation protection of low-pressure, medium-pressure and small-capacity drum boilers;

8. It can be reacted with water to prepare calcium hydroxide, and the reaction equation is: CaO+HO=Ca(OH), which belongs to the chemical reaction.