KR100934127B1 - Manufacturing method of fertilizer using oystershells - Google Patents

Abstract

PURPOSE: A method for manufacturing a fertilizer by using an oyster shell, and the fertilizer prepared by the method are provided to obtain a fertilizer useful as a soil conditioner neutralizing the acidified soil. CONSTITUTION: A method for manufacturing a fertilizer by using an oyster shell comprises the steps of washing an oyster shell, heating it at a drying furnace to remove salt, and pulverizing it to prepare an oyster shell powder; pulverizing an organic material comprising sawdust, rice hulls, and the plant and tree pulverized material, adjusting the water content to be 50~60% at a fermentation tank, injecting a fermentation facilitating agent, and fermenting it with stirring; mixing the oyster shell powder and the organic fermented product; kneading the mixture; granulating the kneaded one; and drying it with hot wind until the final water content becomes 5~10%.

Description

Fertilizer using oyster shell and manufacturing method {Manufacturing method of fertilizer using oystershells}

The present invention relates to a fertilizer using a oyster shell and a method for producing the same as oyster shell as a main raw material and by mixing the organic fermented product to produce a fertilizer to be a good fertilizer as a plant growth and land improver.

In general, the vast amount of oyster shells (shells) produced and disposed of in the south coast of Korea is recycled only a small amount, and most of them are dumped in the ocean or landfilled, causing leachate to pollute the environment. There is a problem.

In other words, while producing oysters, there are difficulties in dealing with the treatment of oyster shells, which are by-products. The oyster shells reach hundreds of thousands of tons per year, but the use of waste materials is extremely low. In addition to devastating environmental pollution and the sea, oyster shells are placed in various places, leaving only odors and serving as places where flies and mosquitoes live. The oyster shells were dried and pulverized to be used as fertilizers, but not only salts were contained, but fertilizer fertilizers were scattered on the arable land or fertilizers were lost due to rainwater. Granular oyster shells made only of oyster shells have good decomposition efficiency even when molded into molds. Since the effects of plant growth and land improvement were greatly reduced, fertilizers using oyster shells were not activated.

The present invention has been made to solve the above problems, the oyster shell powder and the oyster shell powder, which is removed from the oyster shell and powdered it, the organic fermentation consisting of sawdust, rice husk, vegetation grinding, the oyster shell powder and organic fermentation Fertilizers using oyster shells formed by mixing water and granulated to provide excellent quality fertilizers as plant growth and land improvers, while preventing fertilizer fertilization and loss due to rainwater, while improving fertilizer decomposition efficiency. The purpose is to make it.

The present invention provides a washing step of washing the collected oyster shells, removing the salts by means of heating the washed oyster shells in a drying furnace to evaporate the salts, and powdering through the grinder in the state where the salts are removed. Oyster shell powder manufacturing process consisting of a powdering step; Organic matter consisting of crushing the organic material consisting of sawdust, rice husk, vegetation grinding, and putting the organic material in the fermentation tank conditions of 50 to 60% of water content, and then stirring and fermenting evenly by injecting a fermentation accelerator. Process; A mixing step of forming a mixture of organic fermented products in the oyster shell powder of the step; A kneading step of making the mixture of the steps into kneaded water; Molding the dough of the step into a granular state in a granulator; It characterized in that the fertilizer using a shell and a method for producing the same, including a hot air step to dry the granular molded product of the process to hot air to the final moisture content of 5 to 10%.

Fertilizer using the oyster shell of the present invention is a plant-grown and acidified by the fertilizer obtained by mixing the salt-free oyster shell powder and the organic fermentation products fermented organic material consisting of sawdust, rice husk, vegetation grinds to form a granule As a land improver to neutralize the soil, it provides excellent fertilizer and prevents fertilizer fertilizer from scattering or rainwater loss, and improves the decomposition efficiency of fertilizer by the porous material. There is an effect that can be obtained.

Hereinafter, the present invention will be described in detail. In the following description of the present invention, if it is determined that the detailed description of the related well-known function may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

The present invention provides a fertilizer consisting of a mixture of 80 to 90% by weight of oyster shell powder 10 to 20% by weight of organic fermentation.
The reason why the oyster shell powder is 80 to 90% by weight is that when the oyster shell powder mixed in the mixture is 80% by weight or less, the organic matter is excessively contained and the effect as plant growth and land improving agent due to the oyster shell is reduced. This is because when the oyster shell powder is mixed at 90 wt% or more, the decomposition efficiency of the fertilizer formed into granules by combining the oyster shell powder and the organic fermented product is inferior.

More specifically, the oyster shell powder is washed and heated to remove salt and powdered oyster shell powder, the organic fermentation product obtained by grinding and fermenting the organic material consisting of sawdust, rice husk, vegetation grinding, and the oyster shell powder and It is made by mixing and kneading the organic fermented product, forming it into granules and drying with hot air.

In the present invention, a fertilizer using an oyster shell is manufactured by the following process.

A) a washing step of washing the collected oyster shells and heating the washed oyster shells at a temperature of 500 to 600 ° C. to remove salts remaining on the oyster shells in a drying furnace for 10 to 20 minutes to evaporate the salts. Oyster shell powder manufacturing process comprising the steps of removing the salt by means and a powdering step of powdering through a grinder in the state where the salt is removed;

B) the organic material consisting of sawdust, rice hulls, vegetation pulverization is pulverized to less than 200 mesh to facilitate decomposition, and the organic material is put into a fermenter to form a condition of 50 to 60% moisture content to activate fermentation Fermentation process of the organic material consisting of the step of injecting a fermentation promoter seeded with conventional fermentation microorganisms, stirring evenly and fermentation for 3-5 days;

C) a mixing step of forming a mixture of 10 to 20% by weight of the organic fermented product to 80 to 90% by weight of the oyster shell powder of step A) B);

D) a kneading step of making the mixture of the step C) into a dough;

E) the step of molding the dough of the step D) in a granulator state in a granulator;

F) characterized in that it comprises a hot air step of drying the granular molded product of the step E) with hot air to have a final moisture content of 5 to 10%.

The oyster shell is washed two or three times to remove foreign substances, and then heated in a drying furnace at a temperature of 500-600 ° C. for 10-20 minutes to completely evaporate salinity, thereby completely removing the salinity remaining in the oyster shell. Make sure that no salt damage is incurred, then make fine oyster shell powder.

The organic material consisting of the sawdust, chaff, vegetation crushed powder is preferably pulverized to less than 200 mesh to facilitate decomposition in the soil, and put the organic pulverized powder in the fermentation tank conditions for easy moisture fermentation 50 ~ 60% Next, fermentation of organic fermentation promoter seeded with conventional fermentation microorganisms is evenly stirred and fermented organically in a step of fermentation for 3 to 5 days to increase organic matter content of soil and easily decompose in soil so that nutrients are supplied to plants. .

The fertilizer molded into the granular form is easy to penetrate the water by a plurality of pores formed by the organic fermentation product contained in the mixture while preventing the loss of fertilizer fertilizer scattering or rain water to improve the decomposition efficiency.

Hereinafter, a preferred embodiment according to the manufacturing method of the fertilizer using the oyster shell of the present invention will be described in detail.

A) oysters Shell  Powder manufacturing process

The collected oyster shells are washed two to three times with washing water, and then the washed oyster shells are put into a drying furnace and heated in a drying furnace at a temperature of 600 ° C. for 20 minutes, and the salt remaining in the oyster shells together with the water. The salt is removed by evaporation, and the salted oyster shell is made into a fine powder through a grinder.

B) Fermentation process of organic matter

After grinding the organic fermentation product of the vegetation powder into 150 mesh and putting it into the fermenter, the composition is made under the condition of 60% water content. Completely break up the mill.

C) Mixture composition process

80% by weight of the oyster shell powder, which is the main raw material of the process, is mixed in a mixture of 20% by weight of the organic fermented product of the process.

D) Dough, forming and drying process

The dough kneaded the mixture made through the above process was put into a granulator to granulate and dried in a hot air dryer at 100 ° C. to obtain a granular fertilizer having a final moisture content of 10%.

Although the present invention has been described with reference to the above embodiment, various modifications are possible within the technical scope of the present invention.

Claims (3)

A) a washing step of washing the collected oyster shells, removing the salts by means of heating the washed oyster shells in a drying furnace to evaporate the salts, and the powder powdered through the grinder in the state where the salts are removed. Oyster shell powder manufacturing process consisting of a step; B) pulverizing the organic material consisting of sawdust, rice husk, vegetation grinding, and putting the organic material in the fermentation tank to the composition of water content of 50 ~ 60% and injecting the fermentation promoter seeded with fermentation microorganisms and stir evenly and fermentation Fermentation process of the organic material consisting of; C) a mixing step of forming a mixture of the organic fermented product in the oyster shell powder of step A) B); D) a kneading step of making the mixture of the step C) into a dough; E) the step of molding the dough of the step D) in a granulator state in a granulator; F) Fertilizer manufacturing method using the oyster shell, characterized in that it comprises a hot air step of drying the granular molded product of the above step E) to hot water 5-10%. The method of claim 1, The mixture of the step C) is a fertilizer manufacturing method using the oyster shell, characterized in that the mixture of oyster shell powder 80 to 90% by weight of the organic fermentation 10 to 20% by weight. Fertilizer using an oyster shell prepared by the method of claim 1.