CN103341481A - Method and equipment for processing egg shell powder - Google Patents
Method and equipment for processing egg shell powder Download PDFInfo
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- CN103341481A CN103341481A CN2013102623290A CN201310262329A CN103341481A CN 103341481 A CN103341481 A CN 103341481A CN 2013102623290 A CN2013102623290 A CN 2013102623290A CN 201310262329 A CN201310262329 A CN 201310262329A CN 103341481 A CN103341481 A CN 103341481A
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Abstract
The invention discloses a method and equipment for processing high-purity egg shell powder and membranes through simple and economical shell-membrane separation. The method for processing egg shell powder comprises the following steps of: removing residual egg liquid impurities from egg shells, sterilizing the egg shells, smashing the egg shells, immersing the smashed egg shells and performing shell and membrane separation. The processing equipment comprises a pretreatment device, a smashing device, an immersing device, a shell-membrane separator, a membrane collector, a shell collector and a circulation loop. Compared with the prior art, the method and equipment have the advantages that the purity of the egg shell powder and the purity of the membranes are high and the production cost is low.
Description
Technical field
The present invention relates to a kind of processing method and process equipment of egg-shell meal, particularly by handling processing method and the process equipment that the unsegregated eggshell of shell membrane prepares egg-shell meal.
Background technology
Eggshell accounts for 10%-12% of whole egg quality, is made up of film 3 parts under film, true shell, the shell on the shell.Film claims colloid membrane again on the shell, covers eggshell surface, and the mucus drying transparent by white forms.True shell has another name called the lime shell, and principal component is calcium carbonate, accounts for 93% of true chitin amount.Film is made up of egg shell membrane and protein film at the eggshell internal layer under the shell, and the egg shell membrane of mentioning herein is actually film under the shell.
Annual world birds, beasts and eggs output reaches 6,000 ten thousand tons, wherein Chinese nearly 3,000 ten thousand tons, calculate if account for 11% of egg quality by eggshell, 6,600,000 tons on the annual output eggshell in the world,, in state-owned 3,300,000 tons.Tradition is treated the method for eggshell and is used as garbage disposal exactly, and this causes very big pollution to environment.Eggshell is valuable natural biologic material, except being used for extracting the lysozyme, also has a lot of purposes.At first the lime shell is high-quality calcium resource, can be directly used in nutrition manufacturing industry, pharmacy industry, animal feeding-stuff and crop fertilizer processing industry, calcium tonic raw materials for production of new generation; Simultaneously, owing to the peculiar structure of eggshell, composition, character, also can be used as enzyme immobilization carrier, chromatograph packing material, ceramic pigment, fluoride waste inorganic agent, cleanser, porcelain enamel industry grinding agent, beverage fining agent etc.
At present prior art carries out that shell membrane separates and then to obtain egg-shell meal method efficient lower, the egg-shell meal that obtains after separating and the purity of film are not high, namely contain higher protein in the egg-shell meal, contain more calcium carbonate in the film, film after the separation is not sufficiently complete, and the separation costs height.
Summary of the invention
At problems of the prior art, primary and foremost purpose of the present invention is to provide a kind of processing method of egg-shell meal, and this method is simply effective, can reduce protein content in the egg-shell meal and the content of the calcium carbonate in the separated film greatly.Secondary objective of the present invention is to provide a kind of process equipment of egg-shell meal.
For achieving the above object, the processing method of a kind of egg-shell meal of the present invention, concrete steps comprise:
Residual egg liquid and impurity are removed in the fresh eggshell preliminary treatment of step 1), and sterilization processing;
Step 2) described pretreated eggshell is put into pulverizer and be crushed to 8-20mm;
The eggshell of step 3) after with described pulverizing placed in the water and soaked 1-2 hour, and in the immersion process eggshell fully stirred;
The eggshell of step 4) after with described immersion is positioned in the shell membrane seperator that comprises water, regulates the flow velocity of water, by stirring and the overflow method, makes the egg shell membrane separation.
Further, the preliminary treatment in the described step 1) comprises successively in proper order:
Clean, the eggshell after centrifugal is put into mixer carry out stirring and washing, put into water while stirring and clean, further remove egg liquid residual in the eggshell, clean to clarification of water;
Further, the centrifuge speed 1000-3000rpm of described centrifugal treating.
Further, the described water of described step 4) and the described water in the described step 3) operationally recycle use by closed circuit.
Further, the eggshell that obtains after the described step 4) is ground to the 200-300 order.
Further, the eggshell after the described grinding is put into drying machine be dried to eggshell moisture below 5%, baking temperature is 150-180 ℃.
Further, the eggshell after the described sterilization processing is carried out sterilization, described sterilization is dry-air sterilization, microwave disinfection or radio sterilization.
A kind of process equipment of egg-shell meal comprises the pretreatment unit, reducing mechanism, infuser device and the shell membrane seperator that are linked in sequence successively;
Described pretreatment unit is used for removing residual egg liquid and the impurity of fresh eggshell, and sterilization processing;
Described reducing mechanism receives the eggshell after described pretreatment unit processing, is used for pulverizing described eggshell;
Described infuser device receives the eggshell through reducing mechanism processing, and is provided with rabbling mechanism, is used for soaking eggshell;
Described shell membrane seperator receives the eggshell after infuser device processing, separates and collection eggshell and film in order to shell membrane.
Further, the process equipment of described egg-shell meal also comprises closed circuit, and the water in the described shell membrane seperator operationally loops back described infuser device by closed circuit.
Further, described pretreatment unit comprises centrifuge, mixer and the filter that is linked in sequence, and described centrifuge is used for the residual egg liquid of centrifugal removal eggshell; Described mixer receives the eggshell after the centrifuge processing, and eggshell is carried out stirring and washing and sterilization; Filter is used for receiving the finished eggshell of mixer, in order to filter out the impurity in the eggshell.
Further, described shell membrane seperator comprises the shell membrane separator that separates for shell membrane, is used for collecting the shell gatherer of eggshell, is used for the film gatherer of collection membrane; Described shell gatherer is positioned at the below of shell membrane separator, and the delivery port of shell membrane separator is connected with the water inlet of film gatherer.
Further, described shell membrane separator comprises for the container that keeps water, is provided with mixing component, extruder member and spoiler in the container; Described shell gatherer is auger or link plate conveyer, and described film gatherer comprises filter screen.
Further, described closed circuit comprises circulation line and delivery pump.
Further, the process equipment of described egg-shell meal also comprises lapping device, drying device, sterilizing unit.Eggshell after the processing of shell membrane seperator, order obtains the finished product of egg-shell meal through the processing of lapping device, drying device and sterilizing unit successively.
The present invention because having added the immersion of step 3), makes the easier separation of shell membrane, the preceding pulverising step of immersion then make immersion more fully with thorough, and shorten the process time of follow-up shell membrane separation circuit greatly, reduced production cost.And compared with prior art, the egg-shell meal after the present invention separates and the purity of film are higher, and the content of the calcium carbonate in the egg-shell meal in protein content and the film has all obtained great reduction.
Description of drawings
Fig. 1 is the flow chart of the processing method of egg-shell meal of the present invention.
Fig. 2 is egg-shell meal processing method specific embodiment flow chart.
Fig. 3 is the schematic diagram of egg-shell meal process equipment of the present invention.
Fig. 4 is infuser device and shell membrane seperator specific embodiment schematic diagram in the process equipment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
As shown in Figure 2, specific implementation method is as follows in the specific embodiment 1:
Operation 1: centrifugal.Fresh eggshell after separating beating eggs is put into centrifuge and is carried out centrifugally, removes egg liquid residual in the described eggshell.Described centrifuge speed 1000rpm.
Operation 2: clean.Described eggshell after centrifugal is put into mixer carry out stirring and washing, put into water while stirring and clean, further remove egg liquid residual in the eggshell, clean to clarification of water.
Operation 3: soaking sterilization.It is that the thimerosal of 200ppm soaked 30 minutes that eggshell after cleaning is put into effective chlorine density, and eggshell is carried out soaking sterilization.
Operation 4: impurity screening.Eggshell after the soaking sterilization is carried out stirring and washing, remove the chlorion in the water, clean to residual chlorine concentration 0.3mg/L, filter out impurity with filter then.
Operation 5: pulverize.Eggshell behind the impurity screening is put into pulverizer be crushed to 8mm.
Operation 6: soak.To soak 1 hour in the eggshell placement clear water after pulverizing, and in immersion process, eggshell is fully stirred.
Operation 7: the eggshell after will soaking is put into the shell membrane seperator, regulates the flow velocity of water, by methods such as stirring, overflows, egg shell membrane is fully separated.
Operation 8: grind.With ball mill the eggshell of described pulverizing fully is ground to 200 orders.
Operation 9: drying.Eggshell after pulverizing is put into drying machine be dried to eggshell moisture below 5%, baking temperature is 150 ℃.
Operation 10: with dried eggshell dry-air sterilization.
Egg-shell meal processing method disclosed in this invention, significantly reduce through eggshell impurity and bacterial content behind the described centrifugal and impurity screening, through after the described immersion, shell membrane separates easily, shorten the process time that shell membrane separates greatly, and the egg-shell meal that obtains after the process shell membrane separates and the purity of film significantly improve, and the eggshell after shell membrane is separated is further pulverized and ground and sterilization processing, obtains compared with prior art even more ideal aseptic egg-shell meal.
As shown in Figure 2, specific embodiment 2 steps and embodiment 1 step are basic identical, and difference is:
1) centrifuge speed is 2000rpm in the operation 1.
2) in the operation 3 during soaking sterilization the effective chlorine density of thimerosal be 250ppm, soak time is 15 minutes.
3) in the operation 5 cleaned eggshell is put into pulverizer and be crushed to 15mm.
4) in the operation 6 in the clear water soak time be 1.5 hours.
6) eggshell is ground to 250 orders in the operation 8.
7) baking temperature is 165 ℃ in the operation 9.
8) method for disinfection is radio sterilization in the operation 10.
Compare with embodiment 1, because the raising of centrifugal rotational speed, further reduce through eggshell impurity and bacterial content behind the described centrifugal and impurity screening; Because the prolongation of soak time, the egg-shell meal that obtains after the process shell membrane separates and the purity of film further improve.
As shown in Figure 2, specific embodiment 3 steps and embodiment 1 step are basic identical, and difference is:
1) centrifuge speed is 3000rpm in the operation 1.
2) in the operation 3 during soaking sterilization the effective chlorine density of thimerosal be 300ppm, soak time 10 minutes.
3) in the operation 5 cleaned eggshell is put into pulverizer and be crushed to 20mm.
4) in the operation 6 in the clear water soak time be 2 hours.
6) eggshell is ground to 300 orders in the operation 8.
7) baking temperature is 180 ℃ in the operation 9.
8) method for disinfection is microwave disinfection in the operation 10.
Compare with embodiment 2 with embodiment 1, eggshell impurity and bacterial content behind the described centrifugal and impurity screening further reduce; The step raising again of the egg-shell meal that obtains after the process shell membrane separates and the purity of film is further pulverized grinding and sterilization processing to the eggshell after the shell membrane separation, and egg-shell meal is even more ideal.
As shown in Figure 3, the process equipment specific embodiment comprises pretreatment unit, reducing mechanism, infuser device, shell membrane seperator, lapping device, drying device, sterilizing unit and the closed circuit that is linked in sequence successively; Pretreatment unit comprises seperator, mixer and the filter that is linked in sequence successively; The shell membrane seperator comprises shell membrane separator, shell gatherer and film gatherer, and the shell gatherer is positioned at the below of shell membrane separator, and the delivery port of shell membrane separator is connected with the water inlet of film gatherer.
As shown in Figure 4, unsegregated eggshell after reducing mechanism is pulverized enters infuser device 10 and soaks, after enter shell membrane separator 20, regulate the flow velocity of water, by methods such as stirring, overflows, egg shell membrane is separated, shell gatherer 40 is positioned at shell membrane separator 20 belows and collects and transport eggshell, film gatherer 30 is used for collecting and transporting film, and the water in the film gatherer 30 operationally loops back in the described infuser device 10 by closed circuit 50.
Shell gatherer 40 is auger.Film gatherer 30 comprises filter screen 31.Water-flow circuit 50 comprises circulation line 51 and delivery pump 55.
The process equipment of egg-shell meal disclosed in this invention, compared with prior art efficient is higher, and the egg-shell meal that obtains has significant lifting on purity and aseptic degree, and preparation cost is lower.
Claims (9)
1. the processing method of an egg-shell meal is characterized in that, comprising:
Residual egg liquid and impurity are removed in the fresh eggshell preliminary treatment of step 1), and sterilization processing;
Step 2) described pretreated eggshell is put into pulverizer and be crushed to 8-20mm;
The eggshell of step 3) after with described pulverizing placed in the water and soaked 1-2 hour, and in the immersion process eggshell fully stirred;
The eggshell of step 4) after with described immersion is positioned in the shell membrane seperator that comprises water, regulates the flow velocity of water, by stir, overflow, egg shell membrane is separated.
2. the processing method of egg-shell meal according to claim 1 is characterized in that described step 1) comprises:
⑴ the fresh eggshell after will beat eggs and separate is put into centrifuge and is carried out centrifugal treating, removes residual egg liquid in the eggshell;
⑵ clean, and the eggshell after centrifugal put into mixer carry out stirring and washing, puts into water while stirring and clean, and further removes egg liquid residual in the eggshell until clarification of water;
⑶ soaking sterilization, it is that the thimerosal of 200-300ppm soaked 10-30 minute that the eggshell after cleaning is put into effective chlorine density, and eggshell is carried out soaking sterilization;
⑷ impurity screening carries out stirring and washing with the eggshell after the described soaking sterilization, removes the chlorion in the water, cleans to residual chlorine concentration 0.3mg/L, filters out impurity with filter then.
3. the processing method of egg-shell meal according to claim 1 is characterized in that, the described water in the described shell membrane seperator of described step 4) in described water and the described step 3) recycles.
4. the processing method of egg-shell meal according to claim 1 is characterized in that, also comprises:
⑴ the eggshell that obtain after with described step 4) is ground to the 200-300 order;
⑵ the eggshell after with described grinding carries out drying to be handled;
⑶ the eggshell sterilization processing after handle described drying.
5. the process equipment based on the egg-shell meal of the arbitrary described egg-shell meal processing method of claim 1-4 is characterized in that, comprises the pretreatment unit, reducing mechanism, infuser device and the shell membrane seperator that are linked in sequence successively;
Described pretreatment unit is used for removing residual egg liquid and the impurity of fresh eggshell, and sterilization processing;
Described reducing mechanism receives the eggshell after described pretreatment unit processing, is used for pulverizing described eggshell;
Described infuser device receives the eggshell through reducing mechanism processing, is provided with rabbling mechanism, is used for soaking eggshell;
Described shell membrane seperator receives the eggshell after infuser device processing, separates and collection eggshell and film in order to shell membrane.
6. as the process equipment of egg-shell meal as described in the claim 5, it is characterized in that the process equipment of described egg-shell meal also comprises closed circuit, the water in the described shell membrane seperator operationally loops back described infuser device by closed circuit.
7. as the process equipment of egg-shell meal as described in the claim 5, it is characterized in that described pretreatment unit comprises centrifuge, mixer and the filter that is linked in sequence;
Described centrifuge is used for the residual egg liquid of centrifugal removal eggshell;
Described mixer receives the eggshell after the centrifuge processing, and eggshell is carried out stirring and washing and sterilization;
Filter is used for receiving the finished eggshell of mixer, in order to filter out the impurity in the eggshell.
8. as the process equipment of egg-shell meal as described in the claim 5, it is characterized in that described shell membrane seperator comprises the shell membrane separator that separates for shell membrane, be used for collecting the shell gatherer of eggshell, be used for the film gatherer of collection membrane; Described shell gatherer is positioned at the below of shell membrane separator, and the delivery port of shell membrane separator is connected with the water inlet of film gatherer; Described shell membrane separator comprises for the container that keeps water, is provided with mixing component, extruder member and spoiler in the container; Described shell gatherer is auger or link plate conveyer, and described film gatherer comprises filter screen.
9. as the process equipment of egg-shell meal as described in the claim 5, it is characterized in that the process equipment of described egg-shell meal also comprises lapping device, drying device, sterilizing unit; Eggshell after the processing of shell membrane seperator, order obtains the finished product of egg-shell meal through the processing of lapping device, drying device and sterilizing unit successively.
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| CN201310262329.0A CN103341481B (en) | 2013-06-27 | 2013-06-27 | A kind of processing method of egg-shell meal and process equipment |
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| CN201310262329.0A CN103341481B (en) | 2013-06-27 | 2013-06-27 | A kind of processing method of egg-shell meal and process equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105011172A (en) * | 2014-11-26 | 2015-11-04 | 吉林厚德食品有限公司 | Eggshell powder processing method and processing device |
| CN110574881A (en) * | 2019-10-14 | 2019-12-17 | 湖北神地农业科贸有限公司 | Eggshell membrane separation equipment, separation method and production line thereof |
| CN112658011A (en) * | 2020-12-17 | 2021-04-16 | 东北农业大学 | Method for separating eggshell membrane |
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| CN1250396A (en) * | 1997-03-18 | 2000-04-12 | 宾州研究基金会 | Waste egg shell components recovery |
| CN1377601A (en) * | 2002-04-30 | 2002-11-06 | 林金水 | New method for preparing biological protein calcium using egg shells as raw material |
| JP2008113661A (en) * | 2006-11-06 | 2008-05-22 | Hatsuyu Ryu | Method for producing calcium powder of ozone egg shell |
| US7954733B2 (en) * | 2005-01-18 | 2011-06-07 | Biova, L.L.C. | Eggshell membrane separation method |
| CN102524521A (en) * | 2012-02-29 | 2012-07-04 | 重庆市畜牧科学院 | Preparation method of eggshell hydrolysate, as well as product and application of eggshell hydrolysate |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250396A (en) * | 1997-03-18 | 2000-04-12 | 宾州研究基金会 | Waste egg shell components recovery |
| CN1377601A (en) * | 2002-04-30 | 2002-11-06 | 林金水 | New method for preparing biological protein calcium using egg shells as raw material |
| US7954733B2 (en) * | 2005-01-18 | 2011-06-07 | Biova, L.L.C. | Eggshell membrane separation method |
| JP2008113661A (en) * | 2006-11-06 | 2008-05-22 | Hatsuyu Ryu | Method for producing calcium powder of ozone egg shell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105011172A (en) * | 2014-11-26 | 2015-11-04 | 吉林厚德食品有限公司 | Eggshell powder processing method and processing device |
| CN110574881A (en) * | 2019-10-14 | 2019-12-17 | 湖北神地农业科贸有限公司 | Eggshell membrane separation equipment, separation method and production line thereof |
| CN110574881B (en) * | 2019-10-14 | 2024-06-11 | 湖北神地农业科贸有限公司 | Eggshell membrane separation equipment, separation method and production line thereof |
| CN112658011A (en) * | 2020-12-17 | 2021-04-16 | 东北农业大学 | Method for separating eggshell membrane |
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