JPS61257135A - Method for drying raw fish or the like - Google Patents

Abstract

PURPOSE:To dry raw fishes useful as a fertilizer, etc., without requiring a specific device and changing qualities of the raw material, by blending the raw fishes with quicklime, drying the raw fishes by heat generation during change from quicklime to slaked lime and by water absorbing action of the formed slaked lime. CONSTITUTION:Raw fishes are blended with quicklime and the raw fishes are dried by heat generation during change of quicklime to slaked lime with water in the raw fishes and by water absorbing action of the formed slaked lime.

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a method for drying raw fish and the like.

(b) Prior Art Conventionally, there has been a method of producing fertilizer or feed by drying raw fish, especially small fish.

(c) Problems to be solved by the invention However, the conventional method requires drying equipment, the cost of drying energy is large, and the time required for drying is long, during which time the raw fish etc. deteriorate. There was a drawback.

(d) Means for solving the problem This invention is characterized by mixing raw fish with quicklime, and drying the raw fish by the heat generated when the quicklime turns into slaked lime due to the moisture in the raw fish and the water absorption action of the produced slaked lime. The purpose of this invention is to provide a method for drying raw fish.

(E) Function This invention dries raw fish by the heat generated when quicklime turns into slaked lime due to the moisture in the raw fish, and by the water absorption action of slaked lime, so it does not require any special equipment and can be dried in a short time. can be completed and prevents tampering with raw materials.

Effects According to this invention, raw fish is dried by utilizing the heat generated by the moisture in raw fish and quicklime, and the water absorption effect of slaked lime, so that no special equipment is required for drying raw fish. It has the effect of being able to dry raw fish in a short time and preventing the raw fish from being denatured.

(g) Example To explain the example of this invention in detail, raw fish such as small fish and small fish are used as a raw material, granular quicklime is mixed with this raw material, and the moisture in the raw material and quicklime react to form quicklime. The heat generated when turning into slaked lime is used to heat the raw material to evaporate the moisture in the raw material, and the raw material, such as raw fish, is dried by the water-absorbing action of the generated slaked lime.

In addition to the above, fish entrails and the like can be used as raw materials, and a simple mixing device such as a concrete mixer is sufficient for mixing the raw materials and quicklime.

In this way, the mixture of the dried raw material and the generated powdered slaked lime is separated from the dried raw material using a sieve or an air separator.
The powdered slaked lime is separated and the dried raw material is used as fertilizer or feed, and the powdered slaked lime can be used as a lime fertilizer for neutralizing acidic soil.

In this way, the slaked lime adhering to the surface of raw fish, etc. that has been dried for 19 days turns into calcium carbonate with carbon dioxide gas in the air, and becomes coated with calcium carbonate.Moreover, the fat in the raw material reacts with the slaked lime and turns into fatty acid calcium. , is less susceptible to oxidation by oxygen in the air.

Claims (1)

[Claims] 1) A method for drying raw fish, which is characterized by mixing raw fish with quicklime, and drying the raw fish by the heat generated when the quicklime turns into slaked lime due to the moisture in the raw fish, and by the water-absorbing action of the generated slaked lime.