CN101103778B

CN101103778B - Method for preparing integral small-diameter aquatic hard-particle feed

Info

Publication number: CN101103778B
Application number: CN200710070369XA
Authority: CN
Inventors: 何金林; 过世东
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-01
Filing date: 2007-08-01
Publication date: 2010-04-21
Anticipated expiration: 2027-08-01
Also published as: CN101103778A

Abstract

The invention discloses a production method for a complete minor diameter hard particle aquatic feed, which comprises the following steps: 1. the raw materials is mixed and crushed into 0.02 to 0.30mm in proportion; 2. the flour with a weight content of 18% to 30 percent is added into the mixed powder lot; 3. a steam softening materials is added into the mixed powder lot so as to make the weight content of moisture reach 12 percent to 18 percent, thereby the moist heat materials is formed; 4. a die mold with the ratio between the depth and the diameter of die hole of 20:1-28:1 is adopted; 5.the moist heat materials is delivered into a forming machine to produce the particles with a diameter of 0.8 to 1.2 mm; 6. after the heat preservation for 20 to 50 min, the particles are cooled to 28 DEG C to 40 DEG C by cold wind; 7. the crushed grain and powder of cooling particle feed are filtered by a grading screen; 8. the complete minor diameter hard particle aquatic feed is packed and stored. The minor diameter hard particle aquatic feed which is made by the method of the invention has the advantages that: the utilization rate is high; the need of feed of the fish and shrimp larvae can be met, and the waste of feed can be reduced; furthermore, the pollution of the quality of the cultivation is reduced, and the balance of nutriment for the fish and shrimp larvae is improved.

Description

A kind of preparation method of integral small-diameter aquatic hard-particle feed

Technical field

The present invention relates to a kind of processing method of aquatic feeds, specifically a kind of is the preparation method of integral small-diameter aquatic hard-particle mixed feed of object of feeding with various fishes, the shrimp young.

Background technology

In the intensive culture fishes and shrimps process, search for food the grit mixed feed during stage, need hard pellet diet size and young body appearance coupling,, guarantee that fishes and shrimps obtain equalizing nutrient to improve efficiency of feed utilization when its young transfers to from search for food natural bait or microcapsule feedstuff.Existing small-sized hard pellet diet manufacturing process is broken into short grained post forming method after generally all adopting and making bulky grain earlier, and the small-sized hard pellet diet difference in size of gained is obvious, out-of-shape, and powder is many, and utilization rate is low.

Summary of the invention

Technical problem to be solved by this invention is to propose a kind of preparation method of integral small-diameter grit aquatic feeds; the efficiency of feed utilization height that adopts this method to make, help nutrient reservation, help water quality protection, also help the fishes and shrimps young and search for food.

For solving the problems of the technologies described above, the preparation method of a kind of integral small-diameter aquatic hard-particle feed of the present invention comprises the steps:

1. raw material is mixed in proportion and be crushed to 0.02-0.30mm;

2. adding weight content in mixed powder is the flour of 18%-30%;

3. in mixed powder, add the softening material of steam, make the weight content of moisture reach 12%-18%, form damp and hot material;

4. adopting the nib degree of depth and the ratio of die throat diameter is 20: 1-28: 1 pressing mold;

5. damp and hot material is sent into the particle of making diameter 0.8-1.2mm in the make-up machine;

6. with behind the particle heat-insulating 20-50min, cold wind is cooled to 28-40 ℃;

7. cooled pellet is removed particle and powder with the classifying screen sieve;

8. with integral small-diameter aquatic hard-particle feed packing warehouse-in.

Because the present invention has adopted technique scheme, can produce minor diameter grit aquatic feeds by one-shot forming, the small-sized hard pellet diet difference in size that makes is little, regular shape, and powder is few, the utilization rate height.The hard pellet diet that makes with this method can not only satisfy the needs of searching for food of the fishes and shrimps young, reduces the waste of feed, and has reduced the pollution to cultivation water, has improved the balance of fishes and shrimps young absorption nutrient.

The specific embodiment

Embodiment 1: a kind of preparation method of integral small-diameter aquatic hard-particle feed comprises the steps: 1. not contain synthetic hormone, does not contain composite adhesives, does not contain antibiotic feed formula raw material and mix by formula rate, and is crushed to 0.02mm; 2. in mixed powder, add the flour that accounts for overall weight 18%; 3. in mixed powder, add the softening material of steam, make the weight content of moisture reach 12%, form damp and hot material; 4. the ratio that adopts the nib degree of depth and die throat diameter is 20: 1 a pressing mold; 5. damp and hot material is sent into the particle of making diameter 0.8mm in the make-up machine; 6. with behind the particle heat-insulating 20min, cold wind is cooled to 28 ℃; 7. cooled pellet is removed particle and powder with the classifying screen sieve; 8. with integral small-diameter aquatic hard-particle feed packing warehouse-in.

Embodiment 2: a kind of preparation method of integral small-diameter aquatic hard-particle feed comprises the steps: 1. the feed needed raw material to be mixed by formula rate, and is crushed to 0.30mm; 2. in mixed powder, add the flour that accounts for overall weight 25%; 3. in mixed powder, add the softening material of steam, make the weight content of moisture reach 18%, form damp and hot material; 4. the ratio that adopts the nib degree of depth and die throat diameter is 28: 1 a pressing mold; 5. damp and hot material is sent in the make-up machine, made the particle of diameter 1.2mm; 6. with behind the particle heat-insulating 50min, cold wind is cooled to 40 ℃; 7. cooled pellet is removed particle and powder with the classifying screen sieve; 8. with integral small-diameter aquatic hard-particle feed packing warehouse-in.

Embodiment 3: 1. a kind of preparation method of integral small-diameter aquatic hard-particle feed comprises the steps: the formula material of feed is mixed in proportion, and is crushed to 0.25mm; 2. in mixed powder, add the flour that accounts for overall weight 22%; 3. in mixed powder, add the softening material of steam, make moisture reach 15%, form damp and hot material; 4. the ratio that adopts the nib degree of depth and die throat diameter is 25: 1 a pressing mold; 5. damp and hot material is sent in the make-up machine, made the particle of diameter 1.0mm; 6. with behind the particle heat-insulating 40min, cold wind is cooled to 35 ℃; 7. cooled pellet is removed particle and powder with the classifying screen sieve; 8. with integral small-diameter aquatic hard-particle feed packing warehouse-in.

Claims

1. the preparation method of an integral small-diameter aquatic hard-particle feed is characterized in that, it comprises the steps:

1. raw material is mixed in proportion and be crushed to 0.02-0.30mm;

2. adding weight content in mixed powder is the flour of 18%-30%;