CN102660377A - Method for extracting animal offal oil - Google Patents

Abstract

The invention relates to a method for extracting animal offal oil, comprising three steps of freezing out, high-temperature stewing and squeezing. The extracted animal offal oil can be used as a raw material of daily chemicals such as shampoo and fancy soap. The byproduct animal offal powder can be used as animal feed. Thus, the problem of environment pollution caused by animal offal stacking is solved and the waste material is turned into wealth.

Description

A kind of process for extracting of pluck oil

Technical field

The present invention relates to a kind of process for extracting of pluck oil.

Background technology

Produce a large amount of plucks in the animal course of processing; Remove edible internal organ, also have not edible in a large number part to go out of use, what only one of fish viscera was dropped every year just has ten million ton; Also have after drying more than ten thousand tons, the discarded amount of other plucks is just bigger.These plucks that go out of use are not stacked if do not handle nature; Promptly become sour in 3-10 hour, bacterium breeds fast, and per 50 jin of internal organ just can directly pollute 2 square metres soil; Make the not long plant of its 2-3; When raining, rainwater pours the ditch river with these plucks, and its pollution range is further enlarged.

Summary of the invention

Technical problem to be solved by this invention provides a kind of process for extracting of pluck oil, can effectively handle pluck, turns waste into wealth.

The technical scheme that the present invention takes:

A kind of process for extracting of pluck oil, its concrete steps are following:

(1) freeze and analyse: pluck is frozen according to following order analyse and in freezing the process of analysing, collect pluck oil:

Temperature-10--20 ℃, the time: 12 hours;

Temperature-6--4 ℃, the time: 6 hours;

Temperature-2-+6 ℃, the time: 4 hours;

Temperature+4--2 ℃, the time: 2 hours;

(2) high temperature steaming: pluck boiling to the temperature under pressure 0.2-0.3MPa that will freeze after analysing reaches 130 ℃-150 ℃; Stop heating; Constant temperature is 1 hour when being cooled to 60 ℃, then with solid and liquid separation, is to collect pluck oil the mixture of fish oil and water from liquid;

(3) squeezing: separating the solid that obtains in the step (2) is that pluck squeezes, and collects pluck oil, is crushed into the pluck powder after the pluck solid oven dry after the squeezing.

Beneficial effect of the present invention: the pluck oil that the present invention extracts from the depleted pluck can be used as the daily-use chemical industry raw material; Like shampoo, perfumed soap etc.; By product pluck powder can be used as animal-feed, has both solved pluck and has stacked problem of environment pollution caused, can turn waste into wealth again.The present invention is at first frozen pluck and is analysed, under this freezes the condition of analysing, can make pluck oil preliminary with internal organ in water sepn, and keep oily high quality; The internal organ that will freeze then after analysing have the super pressure-high temperature boiling under 0.2-0.3MPa, 130 ℃-150 ℃, can reduce extraction time, increase oil-collecting ratio; Per 5 tons of more common boiling extraction time can reduce 2 hours; Oil-collecting ratio increases by 10%, and sterilization is more thorough, is convenient to deposit; Visceral meal can increase animal appetite when being used as animal-feed, is beneficial to and digests and assimilates.

Embodiment

Further the inventive method is described through concrete embodiment below.

Embodiment 1

The concrete steps of present embodiment are:

(1) fresh pluck be placed on to freeze analyse on the platform, freeze by following condition and analyse:

Temperature-20 ℃, the time: 12 hours;

Temperature-6 ℃, the time: 6 hours;

4 ℃ of temperature, the time: 4 hours;

0 ℃ of temperature, the time: 2 hours;

(2) high temperature steaming: pluck boiling to the temperature under pressure 0.2-0.3MPa that will freeze after analysing reaches 130 ℃-150 ℃; Stop heating; Constant temperature is 1 hour when being cooled to 60 ℃, and then with solid and liquid separation, collecting liquid is the mixture of pluck oil and water;

(3) squeezing: separating the solid that obtains in the step (2) is that pluck squeezes, and collects the mixture of pluck oil and water, is crushed into the pluck powder after the pluck solid oven dry after the squeezing.

The mixture of pluck oil that obtains in above-mentioned three steps and water is come out to get final product with pluck is separating of oil in whizzer.

Embodiment 2

The condition of analysing of freezing of present embodiment is:

Temperature-10 ℃, the time: 12 hours;

Temperature-5 ℃, the time: 6 hours;

Temperature-2 ℃, the time: 4 hours;

4 ℃ of temperature, the time: 2 hours;

Other steps are identical with embodiment 1.

Embodiment 3

The condition of analysing of freezing of present embodiment is:

Temperature-15 ℃, the time: 12 hours;

Temperature-4 ℃, the time: 6 hours;

6 ℃ of temperature, the time: 4 hours;

Temperature-2 ℃, the time: 2 hours;

Other steps are identical with embodiment 1.

Claims (1)

1. the process for extracting of pluck oil is characterized in that its concrete steps are following:

(1) freeze and analyse: pluck is frozen according to following order analyse and in freezing the process of analysing, collect pluck oil:

Temperature-10--20 ℃, the time: 12 hours;

Temperature-6--4 ℃, the time: 6 hours;

Temperature-2-+6 ℃, the time: 4 hours;

Temperature+4--2 ℃, the time: 2 hours;

(2) high temperature steaming: pluck boiling to the temperature under pressure 0.2-0.3MPa that will freeze after analysing reaches 130 ℃-150 ℃; Stop heating; Constant temperature is 1 hour when being cooled to 60 ℃, then with solid and liquid separation, is to collect pluck oil the mixture of fish oil and water from liquid;

(3) squeezing: separating the solid that obtains in the step (2) is that pluck squeezes, and collects pluck oil, is crushed into the pluck powder after the pluck solid oven dry after the squeezing.