CN1865291A - Clean preparation process of chitin - Google Patents
Clean preparation process of chitin Download PDFInfo
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- CN1865291A CN1865291A CN 200510049814 CN200510049814A CN1865291A CN 1865291 A CN1865291 A CN 1865291A CN 200510049814 CN200510049814 CN 200510049814 CN 200510049814 A CN200510049814 A CN 200510049814A CN 1865291 A CN1865291 A CN 1865291A
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Abstract
The invention discloses a cleaning crust manufacturing technology, which proceeding disposal for crust material through physical to squeeze the crust material and chemical method; proceeding separation; squeezing the fresh, liver and other tissues; separating the animal cell liquid from crust material; floating; dewatering; washing fresh, liver and other tissues out of crust. The invention reduces the material consumption, which is easy to utilize.
Description
What technical field the present invention relates to is the method that reduces quantity of wastewater effluent in a kind of preparation process of chitin of cleaning, the especially preparation process of chitin.
Background technology utilizes shrimp or a shrimp shrimp shell, crab or crab shell, mantis shrimp or mantis shrimp shell etc. to have chitinous fishery products or its processed goods tankage etc. are produced chitin for raw material (crust raw material) production technique, continue to use chemical process always, promptly earlier with the molten mineral substance such as calcium, phosphorus that go in the crustacean shells such as shrimp, crab, mantis shrimp of hydrochloric acid soln, the water flushing is to neutrality; Use in the sodium hydroxide solution hydrolysis shell then and the protein (comprising muscle, internal organ, its hetero-organization etc.) on the shell; The water flushing dehydrates at last and forms the chitin product to neutral.Though this preparation process of chitin method is simple, applicability is strong, it is very big to produce wastewater flow rate, serious environment pollution.At present, one ton of chitin of the every production of cleaner preparation process of chitin also will drop into 2.5-2.8 ton sodium hydroxide, 8-9 ton hydrochloric acid, and about 80 tons of water, discharging contains about 130 tons of strong acid, highly basic and organic industrial sewages.Therefore and the expense of input also is surprising like this huge quantity of wastewater effluent is serious and far-reaching to the pollution and the influence of environment, and as the sewage that is produced is handled, then chitin manufacturing enterprise.Therefore reducing the sewage quantity that discharges in the chitin production process is that chitin manufacturing enterprise is looked forward to for a long time, does not reach the purpose that reduces quantity of wastewater effluent but still there is the production that economical and practical method can make chitin for a long time.
Summary of the invention is at above-mentioned defective, and technical problem to be solved by this invention is how to reduce quantity of wastewater effluent in the production process of chitin by simple method, thereby proposes a kind of preparation process of chitin of cleaning.
The preparation process of chitin of the cleaning that the present invention proposes, to have chitinous fishery products or its processed goods tankage are raw material, technological process comprises chemical process, and the chemical process the first step is that the water flushing is to neutral again with the molten mineral substance such as calcium, phosphorus that go in the crust raw material of hydrochloric acid soln; Second step of chemical process is that the water flushing is to neutral again with the protein in the sodium hydroxide solution hydrolysis crust raw material.But before chemical process, also have physical method, physical method is earlier the crust raw material to be pushed, and makes the muscle, internal organ and the hetero-organization thereof that are included in the crust raw material be extruded crushing; Separate again, the muscle, internal organ and the hetero-organization thereof that are extruded crushing are separated with the crust raw material with the zooblast liquid that is squeezed out; Carry out rinsing subsequently, make and still wrap up in broken muscle, internal organ and the hetero-organization thereof of band in the crust raw material and washed away and go out crust; Dewater at last, the muscle, internal organ and the hetero-organization thereof that flush out are separated with crust with water.
The preparation process of chitin of the cleaning that the present invention proposes, in physical method, said extruding and the separation operation process that the crust raw material is carried out, can be by make with extruding isolating muscle, internal organ and the hetero-organization thereof wanted pushed through the Kong Eryu crust raw material separating process of the crust that keeps greater than needs, i.e. extruding and sepn process is combined into one and adopts the meat process.
The preparation process of chitin of the cleaning that the present invention proposes, in physical method, after the crust raw material is pushed, separates, carry out before the rinsing process extruding, isolating crust raw material being carried out wet heat treatment, so-called wet heat treatment be preserve moisture or the condition of humidification under raw material is heated, as steaming, boiling, both made the protein denaturation in muscle, internal organ and the hetero-organization thereof, dehydration is shunk and is solidified, and makes whole material system keep enough moisture content to be difficult to therefrom separate to avoid muscle, internal organ and hetero-organization thereof and crust bonding again.
The preparation process of chitin of the cleaning that the present invention proposes, the crust raw material is carried out physical method earlier to be handled, by extruding shrimp or shrimp head, shrimp shell, crab or crab shell, mantis shrimp or mqb shell etc. chitinous fishery products or its processing fent are arranged, make and enter the only remaining original 35-40% of inventory that chemical process is handled, thereby can reduce the hydrochloric acid consumption more than 40%, can reduce sodium hydroxide concentration more than 70%, can reduce the water for cleaning amount more than 50%, be discharged into the sewage quantity that goes in the environment then not enough original 30%.Simultaneously, most of protein can carry out when physical method is handled and the separating of crust, and be that the state that is particle, fritter is present in the water rather than is hydrolyzed and dissolves in liquid phase, make and be easy to these proteinic utilizations with to containing the processing of these proteinic water, just as can making water obtain to utilize again and obtain the less protein raw material of moisture content through filtering.
The preparation process of chitin of the cleaning that embodiment 1, present embodiment propose is a raw material with tankage shrimp head, the shrimp shell of peeled shrimp source mill, and technological process is earlier with physical method, chemically handles again.Physical method is earlier raw material to be pushed, and makes the muscle, internal organ and the hetero-organization thereof that are included in the crust be extruded crushing; Separate, adopt the screen filtration mode to separate, the crust that mesh keeps less than need greater than broken muscle, internal organ and hetero-organization thereof makes the muscle, internal organ and the hetero-organization thereof that are extruded crushing separate with crust with the zooblast liquid that is squeezed out; Carry out rinsing subsequently, make and still wrap up in broken muscle, internal organ and the hetero-organization thereof of band in crust and washed away and go out crust; Dewater at last, still adopt the screen filtration mode to separate, the crust that mesh keeps less than need greater than broken muscle, internal organ and hetero-organization thereof makes the muscle, internal organ and the hetero-organization thereof that flush out separate with crust with water.Chemical process is to adopt earlier the molten mineral substance such as calcium, phosphorus that go in shrimp (head) shell of hydrochloric acid soln, and the water flushing is to neutrality again; Adopt again subsequently the sodium hydroxide solution hydrolysis remaining protein, the water flushing is to neutral again; Dehydrate at last.Wherein drop into 36 tons of bright shrimps of raw material shrimp shell, after extruding, separation, rinsing, dehydration, get 13.7 tons of purer shrimp shells, in chemical process, thrown in 4.8 tons of hydrochloric acid, 0.84 ton in caustic soda, 37 tons of water for cleaning, 37 tons of sewage effluents get 1 ton of product.
2, be raw material with little assorted crab, the same example of process.Drop into the little assorted crab of 30 tons of aquatic foods of raw material, after extruding, separation, rinsing, dehydration, get 10.5 tons of purer crab shells, in chemical process, thrown in 5.2 tons of hydrochloric acid, 0.81 ton in caustic soda, 40 tons of water for cleaning, 40 tons of sewage effluents get 1 ton of product.
3, be raw material with modest mantis shrimp, process is with example 1.Drop into 30 tons of modest mantis shrimps of aquatic foods of raw material, after extruding, separation, rinsing, dehydration, get 12 tons of purer mantis shrimp shells, in chemical process, thrown in 4.7 tons of hydrochloric acid, 0.75 ton in caustic soda, 35 tons of water for cleaning, 35 tons of sewage effluents get 1 ton of product.
4, the preparation process of chitin of the cleaning of present embodiment proposition, comprise physical method and chemical process, wherein in physical method, extruding and subsequently lock out operation are to utilize a kind of flesh separator that the crust raw material is pushed, and make in extruding by make institute's isolating muscle, internal organ and hetero-organization thereof wanted be pushed through Kong Eryu crust raw material separation greater than the crust of needs reservation with extruding.
5, the preparation process of chitin of the cleaning of present embodiment proposition comprises physical method and chemical process, and wherein physical method is earlier raw material to be pushed, and makes the muscle, internal organ and the hetero-organization thereof that are included in the crust be extruded crushing; Separate subsequently, the muscle, internal organ and the hetero-organization thereof that are extruded crushing are separated with crust with the zooblast liquid that is squeezed out; Again the raw material through extruding is carried out wet heat treatment, make the protein denaturation in muscle, internal organ and the hetero-organization thereof, dehydration is shunk and is solidified; Carry out rinsing again, make and still wrap up in broken muscle, internal organ and the hetero-organization thereof of band in crust and washed away and go out crust; Dewater at last, the muscle, internal organ and the hetero-organization thereof that flush out are separated with crust with water.
This example is that raw material is operated with a shrimp shrimp shell, crab, mantis shrimp respectively, and wherein the part consumption is
1. be raw material with a shrimp shrimp shell, drop into 36 tons of bright shrimps of raw material shrimp shell, after extruding, separation, wet heat treatment, rinsing, dehydration, get 11.1 tons of purer shrimp shells, 4.4 tons of hydrochloric acid in chemical process, have been thrown in, 0.76 ton in caustic soda, 34 tons of water for cleaning, 34 tons of sewage effluents get 1 ton of product.
2. be raw material with little assorted crab, drop into the little assorted crab of 30 tons of aquatic foods of raw material, after extruding, separation, wet heat treatment, rinsing, dehydration 9 tons of purer shells of separating, 4.6 tons of hydrochloric acid in chemical process, have been thrown in, 0.77 ton in caustic soda, 36 tons of water for cleaning, 36 tons of sewage effluents get 1 ton of product.
3. be raw material with modest mantis shrimp, drop into 30 tons of modest mantis shrimps of aquatic foods of raw material, after extruding, separation, wet heat treatment, rinsing, dehydration, get 9.6 tons of purer mantis shrimp shells, 4.3 tons of hydrochloric acid in chemical process, have been thrown in, 0.72 ton in caustic soda, 32 tons of water for cleaning, 32 tons of sewage effluents get 1 ton of product.
6, the preparation process of chitin of the cleaning of present embodiment proposition is a raw material with the crustaceans sundry goods that sort out in the aquatic products processing, handles through physical method and chemical process.Wherein physical method is: earlier raw material is carried out impurity elimination and handle, foreign material such as being mingled in wherein spiral shell shell, stone, plastics, iron are removed.With the crust extrusion equipment raw material is advanced extruding again.Adopt secondary extrusion, thick earlier back is smart, makes muscle, internal organ, body fluid break away from housing, must avoid housing too much broken simultaneously, to guarantee the requirement of chitin product specification.Separate, use whizzer, centrifuge speed per minute 1200 changes, and part muscle, internal organ and hetero-organization follower enchylema thereof and feed separation are opened.Carry out wet heat treatment again, adopt cooking machine that raw material is handled.Cooking machine is to have casing that steam jacket is arranged and an axle, and with the worm conveyor of steam direct heating material.That is, cooking machine is a worm conveyor, and the shell of this worm conveyor is a jacketed type, and interior logical steam is to add thermal material; The screw conveyor shaft of this worm conveyor is a hollow, in logical steam to add thermal material; Directly feed steam in the machine chamber of this worm conveyor both to add thermal material, also increase moisture content in the material.Heating and temperature control is at 100 ℃.Vapor pressure 4kg/cm2.Carry out rinsing again, use steel basin, stirring arm Revolution Per Minute 30 changes.To be wrapped in the shell and by rinsing and to float, to stir and to separate with shell by water every muscle, internal organ and the hetero-organization thereof of mixing between shell.Carry out dehydration operation again, use whizzer, centrifuge speed per minute 1200 changes, and the muscle, internal organ and the hetero-organization thereof that are washed out are opened with moisture content and feed separation.
With above-mentioned centrifugation second time gained filtrate through the pressure filter filter-press dehydration, filter cake is low-moisture protein product, filtrate is that clear water is again as rinsing water.
In the muscle of in physical method, separating, internal organ, the zooblast liquid, contain rich in protein, fat, the long factor of open-birth, shelling yield stimulant, sea food flavor material and VITAMIN etc., be the raw materials for production of the very high preciousness of added value, thus the above-mentioned low-moisture protein product of gained and with the filtrate of above-mentioned centrifugation first time gained can be through enzymolysis, concentrate, dry and the quality protein product.
Claims (3)
1, a kind of preparation process of chitin of cleaning, to have chitinous fishery products or its processed goods tankage are raw material, technological process comprises chemical process, and the chemical process the first step is that the water flushing is to neutral again with the molten mineral substance such as calcium, phosphorus that go in the crust raw material of hydrochloric acid soln; Second step of chemical process is with the protein in the sodium hydroxide solution hydrolysis crust raw material, the water flushing is to neutral again, it is characterized in that before chemical process, also has physical method, physical method is earlier the crust raw material to be pushed, and makes the muscle, internal organ and the hetero-organization thereof that are included in the crust raw material be extruded crushing; Separate again, the muscle, internal organ and the hetero-organization thereof that are extruded crushing are separated with the crust raw material with the zooblast liquid that is squeezed out; Carry out rinsing subsequently, make and still wrap up in broken muscle, internal organ and the hetero-organization thereof of band in the crust raw material and washed away and go out crust; Dewater at last, the muscle, internal organ and the hetero-organization thereof that flush out are separated with crust with water.
2, the preparation process of chitin of cleaning as claimed in claim 1, it is characterized in that in physical method, said extruding and the separation operation process that the crust raw material is carried out, can be by make with extruding isolating muscle, internal organ and the hetero-organization thereof wanted pushed through the Kong Eryu crust raw material separating process of the crust that keeps greater than needs, i.e. extruding and sepn process is combined into one and adopts the meat process.
3, the preparation process of chitin of cleaning as claimed in claim 1 is characterized in that in physical method, after the crust raw material is pushed, separates, carries out before the rinsing process extruding, isolating crust raw material being carried out wet heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049814 CN1865291A (en) | 2005-05-21 | 2005-05-21 | Clean preparation process of chitin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049814 CN1865291A (en) | 2005-05-21 | 2005-05-21 | Clean preparation process of chitin |
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| CN1865291A true CN1865291A (en) | 2006-11-22 |
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| CN 200510049814 Pending CN1865291A (en) | 2005-05-21 | 2005-05-21 | Clean preparation process of chitin |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979401A (en) * | 2010-09-21 | 2011-02-23 | 舟山市普陀新展望水产饲料有限公司 | Method for treating protein in carapace raw material |
| CN103396263A (en) * | 2013-07-26 | 2013-11-20 | 青岛加中农业科技有限公司 | Biological culture medium using chitin as raw material and application thereof |
| GB2515189A (en) * | 2013-05-31 | 2014-12-17 | Medtrade Products Ltd | Process for the removal of contamination from a raw material |
-
2005
- 2005-05-21 CN CN 200510049814 patent/CN1865291A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979401A (en) * | 2010-09-21 | 2011-02-23 | 舟山市普陀新展望水产饲料有限公司 | Method for treating protein in carapace raw material |
| GB2515189A (en) * | 2013-05-31 | 2014-12-17 | Medtrade Products Ltd | Process for the removal of contamination from a raw material |
| CN103396263A (en) * | 2013-07-26 | 2013-11-20 | 青岛加中农业科技有限公司 | Biological culture medium using chitin as raw material and application thereof |
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