CN108499509B - Device and method for improving quality of meat and bone meal and grease prepared by dry method - Google Patents
Device and method for improving quality of meat and bone meal and grease prepared by dry method Download PDFInfo
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- CN108499509B CN108499509B CN201810600334.0A CN201810600334A CN108499509B CN 108499509 B CN108499509 B CN 108499509B CN 201810600334 A CN201810600334 A CN 201810600334A CN 108499509 B CN108499509 B CN 108499509B
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
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Abstract
The invention discloses a device and a method for improving the quality of meat and bone meal and grease prepared by dry method, wherein the device comprises a reaction kettle, the reaction kettle comprises a dirty steam outlet and a superheated steam recovery port, the dirty steam outlet is sequentially connected with a circulating fan and a steam heater, and the air outlet end of the steam heater is connected with the superheated steam recovery port to form a steam circulation loop; a first three-way control valve is further arranged between the dirty steam outlet and the circulating fan, the inlet end of the first three-way control valve is communicated with the dirty steam outlet, one outlet end of the first three-way control valve is communicated with the circulating fan, and the other outlet end of the first three-way control valve is sequentially connected with a heat exchanger and an absorber to remove odor substances in steam. The invention has the advantages of improving the quality of meat and bone powder and grease, saving energy and having low running cost.
Description
Technical Field
The invention relates to a device and a method for preparing meat and bone meal and grease by dry method, in particular to a device and a method for improving the quality of meat and bone meal and grease by dry method.
Background
China is a large country for livestock and poultry cultivation and consumption, and along with the rapid development of livestock and poultry cultivation and slaughtering industry in China, the harmless treatment of sick and dead livestock is receiving more and more attention. At present, the domestic animal carcasses are provided with the recycling treatment technology mainly comprising technologies of burying, high-temperature alkali liquor treatment, incineration, biodegradation, chemical production and the like. At present, the incineration and high-temperature alkali liquor treatment cost is higher, the incineration needs additional energy, the high-temperature alkali liquor treatment needs alkali liquor, the generated wastewater needs to be treated, and the additional economic benefit cannot be provided. The biodegradation automation is low, and the method is not suitable for animal carcasses carrying epidemic diseases. The existing treatment mode is dry method preparation, meat and bone meal and animal fat can be obtained through the dry method preparation, the animal fat can be used as a raw material of biodiesel, the meat and bone meal can also be used as a raw material of organic fertilizer, and the method has high economic benefit, is safe and environment-friendly. The main process of the current dry method preparation comprises the steps of crushing dead livestock, then entering a reaction kettle, carrying out high-temperature sterilization treatment at 140 ℃ for 4 hours continuously, then releasing pressure for reduced pressure evaporation, carrying out dehydration treatment on materials, wherein the materials are limited by heat and mass transfer, the drying process can not completely remove water, about 4% of water still exists in the treated materials, meanwhile, according to the different putrefaction degrees of the carcasses of the raw materials, the raw materials have putrescine, cadaverine and other odor substances, the same limitation and heat and mass transfer are carried out, and the odor substance molecules can not be completely removed, so that the quality of animal fat and meat and bone powder of the products can be influenced.
Therefore, it is necessary to design a device and a method for effectively removing moisture and odor substances in meat, bone and grease and improving the quality of the meat, bone and grease with low running cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a device and a method for improving the quality of meat and bone meal and grease prepared by dry method.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the device for improving the quality of meat and bone meal and grease prepared by dry method comprises a reaction kettle, wherein the reaction kettle comprises a dirty steam outlet and a superheated steam recovery port, the dirty steam outlet is sequentially connected with a circulating fan and a steam heater, and the air outlet end of the steam heater is connected with the superheated steam recovery port to form a steam circulation loop; a first three-way control valve is further arranged between the dirty steam outlet and the circulating fan, the inlet end of the first three-way control valve is communicated with the dirty steam outlet, one outlet end of the first three-way control valve is communicated with the circulating fan, and the other outlet end of the first three-way control valve is sequentially connected with a heat exchanger and an absorber to remove odor substances in steam.
The further technical scheme is as follows: a cyclone dust collector is further arranged between the dirty steam outlet and the first three-way control valve, a dust collector air inlet communicated with the dirty steam outlet is arranged on the side face of the cyclone dust collector, a particulate matter outlet communicated with the reaction kettle is arranged at the bottom of the cyclone dust collector, and a dust collector air outlet communicated with the inlet end of the first three-way control valve is arranged at the top of the cyclone dust collector.
The further technical scheme is as follows: a second three-way control valve is arranged between the first three-way control valve and the circulating fan, an inlet end of the second three-way control valve is connected with an outlet end of the first three-way control valve, an outlet end of the second three-way control valve is connected with the circulating fan, and the other inlet end of the second three-way control valve is connected with a fresh steam input pipeline.
The further technical scheme is as follows: and a heat recoverer is arranged between the other outlet end of the first three-way control valve and the heat exchanger.
The further technical scheme is as follows: the adsorber comprises a tank body, a plurality of layers of active carbon plates arranged in the tank body, and an inlet of the tank body is connected with an air outlet of the heat exchanger.
The further technical scheme is as follows: the heat exchanger is a spiral plate heat exchanger.
The method for improving the quality of meat and bone meal and grease prepared by dry method comprises the following steps:
introducing superheated steam into the reaction kettle to remove water and odor substances in the meat and bone powder and grease, wherein the superheated steam is converted into dirty steam;
part of dirty steam in the reaction kettle is led into a heat exchanger for cooling, then is discharged after the odor substances in the dirty steam are adsorbed by an absorber, and the other part of dirty steam is led into a circulating fan for boosting, is heated by a steam heater, and is used for treating the moisture and the odor substances in the meat and bone meal and grease again.
The further technical scheme is as follows: the method comprises the steps of cooling the superheated steam which is converted into dirty steam and a part of dirty steam in the reaction kettle by a heat exchanger, adsorbing the odor substances in the dirty steam by an absorber, discharging the dirty steam, pressurizing the other part of dirty steam by a circulating fan, heating the dirty steam by a steam heater, and treating the water and the odor substances in the meat and bone meal and the grease again, wherein the method comprises the following steps:
introducing the dirty steam into a cyclone dust collector;
the cyclone dust collector is used for removing particles in the dirty steam, the particles are introduced into the reaction kettle, and the dirty steam for removing the particles is respectively introduced into the circulating fan and the heat exchanger.
The further technical scheme is as follows: and the other part of dirty steam is pumped into the circulating fan for boosting, is heated by the steam heater, enters the reaction kettle again to dry the materials, and is simultaneously pumped with fresh steam when the other part of dirty steam is pumped into the circulating fan.
The further technical scheme is as follows: and part of the dirty steam in the reaction kettle is introduced into the heat exchanger for cooling, and then the dirty steam is recycled by adopting the heat recoverer before part of the dirty steam is introduced into the heat exchanger for cooling in the discharging step after the odor substances in the dirty steam are adsorbed by the absorber.
Compared with the prior art, the invention has the beneficial effects that: according to the device for improving the quality of meat and bone meal and grease prepared by dry method, the reaction kettle is provided with the dirty steam outlet and the superheated steam recovery port, the dirty steam outlet is sequentially connected with the circulating fan and the steam heater, the air outlet end of the steam heater is connected with the superheated steam recovery port to form the steam circulation loop, superheated steam is introduced into the reaction kettle, the steam can take away moisture and putrescine, cadaverine and other odor substances in the meat and bone meal and grease, the quality of the meat and bone meal and grease is effectively improved, a part of steam carrying moisture, putrescine, cadaverine and other odor substances enters the reaction kettle again through the steam circulation loop, the utilization rate of the steam is improved, energy is saved, the other part of steam is introduced into the heat exchanger and the absorber to remove the odor substances in the steam, the moisture, putrescine, cadaverine and other odor substances in the meat and bone meal can be effectively removed through the device, and the high-quality meat and grease can be obtained, and the running cost is low.
According to the method for improving the quality of meat and bone meal and grease by dry method, superheated steam is introduced into a reaction kettle to remove moisture and odor substances in the meat and bone meal and grease, the superheated steam is converted into dirty steam, one part of dirty steam is introduced into a heat exchanger to be cooled, the dirty steam is adsorbed by an adsorber and then discharged, the other part of dirty steam is introduced into a circulating fan to be pressurized, the other part of dirty steam is heated by a steam heater and enters the reaction kettle again to treat the moisture and odor substances in the meat and bone meal and grease, the moisture and odor substances in materials are effectively removed, the cyclic utilization of the steam is realized, the energy is saved, and the running cost is reduced.
The foregoing description is only an overview of the present invention, and is intended to be more clearly understood as being carried out in accordance with the following description of the preferred embodiments, as well as other objects, features and advantages of the present invention.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an apparatus for improving the quality of meat and bone meal and grease prepared by dry process;
FIG. 2 is a flow chart of a specific embodiment of the method for improving the quality of meat and bone meal and grease prepared by dry method according to the present invention;
FIG. 3 is a flow chart of the cyclone dust collector for removing particles in an embodiment of the method for improving the quality of meat, bone and fat prepared by dry method according to the present invention.
Reference numerals
1. A reaction kettle; 11. a dirty steam outlet; 12. a particulate matter recovery port; 13. superheated steam recovery port; 14. nitrogen reserving interface; 2. a cyclone dust collector; 21. an air inlet of the dust remover; 22. a dust remover air outlet; 23. a particulate matter outlet; 3. a first three-way control valve; 4. a second three-way control valve; 41. fresh steam input pipeline; 5. a heat recoverer; 6. a heat exchanger; 7. an adsorber; 71. an outlet flange interface; 8. a circulating fan; 9. a steam heater.
Detailed Description
In order to more fully understand the technical content of the present invention, the following technical solutions of the present invention will be further described and illustrated with reference to specific embodiments, but are not limited thereto.
Referring to fig. 1, the device for improving the quality of meat and bone meal and grease prepared by dry method according to the invention comprises a reaction kettle 1, wherein the reaction kettle 1 is main equipment for producing the meat and bone meal and grease, the reaction kettle 1 comprises a dirty steam outlet 11 and a superheated steam recovery port 13, the dirty steam outlet 11 is sequentially connected with a circulating fan 8 and a steam heater 9 (the communication mode is through a pipeline and is beneficial to the transportation of steam), the steam heater 9 is used for heating steam to reach the required temperature, and the air outlet end of the steam heater 9 is connected with the superheated steam recovery port 13 (through the pipeline and is communicated) to form a steam circulation loop; a first three-way control valve 3 is further arranged between the dirty steam outlet 11 and the circulating fan 8, the inlet end of the first three-way control valve 3 is communicated with the dirty steam outlet 11 (communicated with each other through a pipeline), one outlet end of the first three-way control valve 3 is communicated with the circulating fan 8 (communicated with each other through a pipeline), and the other outlet end of the first three-way control valve 3 is sequentially connected with a heat exchanger 6 (in the embodiment, the heat exchanger 6 is a spiral plate heat exchanger 6) and an adsorber 7 (communicated with each other through a pipeline) so as to remove odor substances in steam.
Specifically, superheated steam is passed through the reaction kettle 1, the temperature range of the superheated steam is 150-250 degrees, the superheated steam can remove moisture and odor substances (mainly, the odor substances are putrescine and cadaverine) from meat and bone meal and grease, at the moment, the superheated steam can carry the moisture and the odor substances and become dirty steam, the dirty steam is discharged through a dirty steam outlet 11, a part of dirty steam is directly introduced into the heat exchanger 6 through a three-way control valve, cooling water in the heat exchanger 6 carries out cooling treatment on the dirty steam, then the odor substances in the dirty steam are adsorbed through the adsorber 7 (preferably, the adsorber 7 adopts an activated carbon adsorber 7, and the advantages are that the noncondensable gas containing small molecular odor chemical substances such as putrescine and cadaverine with high concentration can be adsorbed), finally, the discharged waste gas does not exist through an outlet flange interface 71, and therefore, the influence on the surrounding environment can not be caused. The other part of dirty steam is continuously heated to become superheated steam, and enters the reaction kettle 1 again through the steam circulation loop, continuously removes water in meat and bone meal and grease and odor substances (mainly, the odor substances are putrescine and cadaverine), and then is discharged from the dirty steam outlet 11.
In addition, in order to ensure operation safety, a nitrogen reservation interface 14 is arranged on a pipeline of the steam circulation loop so as to prevent potential safety hazards caused by entering air after system faults. Further, temperature and pressure detection points are arranged on the pipeline of the steam circulation loop so as to know the pressure and temperature conditions in the pipeline in real time.
Further, a cyclone dust collector 2 is arranged between the dirty steam outlet 11 and the first three-way control valve 3, a dust collector air inlet 21 communicated with the dirty steam outlet 11 is arranged on the side surface of the cyclone dust collector 2, a particulate matter outlet 23 communicated with a particulate matter recovery port 12 of the reaction kettle is arranged at the bottom of the cyclone dust collector 2, and a dust collector air outlet 22 communicated with the inlet end of the first three-way control valve 3 is arranged at the top of the cyclone dust collector 2. Specifically, the cyclone dust collector 2 is used for separating particles (particles mainly comprise meat and bone powder and the like) from the polluted steam, and then sending the particles into the reaction kettle 1 for treatment.
Further, a second three-way control valve 4 is arranged between the first three-way control valve 3 and the circulating fan 8, an inlet end of the second three-way control valve 4 is connected with an outlet end of the first three-way control valve 3, an outlet end of the second three-way control valve 4 is connected with the circulating fan 8, and the other inlet end of the second three-way control valve 4 is connected with a fresh steam input pipeline 41.
Specifically, fresh steam is introduced into the steam circulation loop through the fresh steam input pipeline 41, and the fresh steam can replace dirty steam in the reaction kettle 1, so that the speed of removing water and odor substances in meat and bone meal and grease is effectively improved, and the working efficiency is improved. In addition, the first three-way control valve 3 and the second three-way control valve 4 can control the flow of steam according to actual conditions.
In some embodiments, the device further comprises a microcontroller, the first three-way control valve 3 and the second three-way control valve 4 being controlled by the microcontroller. When the meat and bone meal and grease are treated by the superheated steam into the reaction kettle 1 for the first time, a large amount of non-condensable gas is contained in the first polluted steam discharged after the treatment, so that the inlet end of the first three-way control valve 3 can be controlled by the microcontroller to be closed to prevent the first polluted steam from entering the reaction kettle 1, the other inlet end of the second three-way controller is controlled to be closed to prevent the entry of the fresh steam, according to the actual situation, after a period of time, the inlet end of the first three-way control valve 3 can be controlled to be opened and the other inlet end of the second three-way controller can be controlled to be opened, the steam coming out of the reaction kettle 1 can be introduced into the reaction kettle 1 again due to less non-condensable gas, and meanwhile, the introduced fresh steam can accelerate the treatment of water and positions in the meat and bone meal and the grease, and the working efficiency is improved. The automatic control is realized, and the first three-way control valve 3 and the second three-way control valve 4 can be regulated and controlled manually.
Further, a heat recoverer 5 is arranged between the other outlet end of the first three-way control valve 3 and the heat exchanger 6. Because the steam has a large amount of heat energy before entering the heat exchanger 6, the heat recoverer 5 can be arranged to recover and recycle a part of the steam, and the heat recoverer 5 can be communicated with other reaction kettles 1 or other equipment needing heat energy so as to realize multi-stage utilization of the steam.
Further, the adsorber 7 comprises a tank body, an inlet flange interface arranged at one end of the tank body, an outlet flange interface 71 arranged at the other end of the tank body, and a multi-layer activated carbon plate arranged in the tank body, wherein the inlet flange interface is connected with the air outlet of the heat exchanger 6. In other embodiments, the adsorber 7 may be replaced with other exhaust gas collection devices.
The above is summarized: according to the device for improving the quality of meat and bone meal and grease prepared by dry method, the reaction kettle is provided with the dirty steam outlet and the superheated steam recovery port, the dirty steam outlet is sequentially connected with the circulating fan and the steam heater, the air outlet end of the steam heater is connected with the superheated steam recovery port to form the steam circulation loop, superheated steam is introduced into the reaction kettle, the steam can take away moisture and putrescine, cadaverine and other odor substances in the meat and bone meal and grease, the quality of the meat and bone meal and grease is effectively improved, a part of steam carrying moisture, putrescine, cadaverine and other odor substances enters the reaction kettle again through the steam circulation loop, the utilization rate of the steam is improved, energy is saved, the other part of steam is introduced into the heat exchanger and the absorber to remove the odor substances in the steam, the moisture, putrescine, cadaverine and other odor substances in the meat and bone meal can be effectively removed through the device, and the high-quality meat and grease can be obtained, and the running cost is low.
Referring to fig. 2-3, the method for improving the quality of meat and bone meal and grease prepared by dry method according to the present invention comprises:
s10, introducing superheated steam into the reaction kettle to remove water and odor substances in the meat and bone meal and grease, wherein the superheated steam is converted into dirty steam;
s20, introducing part of dirty steam in the reaction kettle into a heat exchanger for cooling, adsorbing odor substances in the dirty steam through an absorber, discharging, introducing the other part of dirty steam into a circulating fan for boosting, heating through a steam heater, and treating water and odor substances in meat and bone meal and grease again.
For step S20, when superheated steam is introduced into the reaction kettle for treating meat and bone meal and grease for the first time, the first contaminated steam discharged after treatment contains a large amount of non-condensable gas, so that the controllable first contaminated steam does not enter the reaction kettle, is directly introduced into a heat exchanger for cooling, is adsorbed with odor substances in the contaminated steam through an adsorber and is discharged, after a period of time, the steam coming out of the reaction kettle is controlled to enter the reaction kettle again, thereby realizing the recycling of the steam and reducing the cost.
In certain embodiments, the following steps are further included between step S10 and step S20:
s15, introducing the dirty steam into a cyclone dust collector;
s16, removing particles in the dirty steam by the cyclone dust collector, introducing the particles into the reaction kettle, and introducing the dirty steam from which the particles are removed into the circulating fan and the heat exchanger respectively.
In some embodiments, when another part of dirty steam is introduced into the circulating fan, fresh steam is also introduced, and the introduced fresh steam can replace the dirty steam in the reaction kettle, so that the speed of removing water and odor substances (the odor substances are mainly putrescine, cadaverine and the like) is improved.
In some embodiments, a heat recoverer is used to recover and reuse a portion of the dirty steam before it is passed to the heat exchanger for cooling. Because the steam has a large amount of heat energy before entering the heat exchanger, a heat recoverer can be arranged to recover and recycle a part of the steam, and the heat recoverer can be communicated with other reaction kettles or other equipment needing heat energy so as to realize the multi-stage utilization of the steam.
The above is summarized: through leading into superheated steam to remove moisture and odor substances in meat and bone meal and grease, superheated steam is converted into dirty steam, a part of dirty steam is led into a heat exchanger for cooling, then the odor substances in the dirty steam are adsorbed by an absorber and then discharged, and the other part of dirty steam is led into a circulating fan for boosting, is heated by a steam heater and then enters into the reaction kettle again to treat the moisture and odor substances in the meat and bone meal and grease, so that the moisture and odor substances in materials are effectively removed, the cyclic utilization of the steam is realized, the energy is saved, and the running cost is reduced.
The foregoing examples are provided to further illustrate the technical contents of the present invention for the convenience of the reader, but are not intended to limit the embodiments of the present invention thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.
Claims (6)
1. The device for improving the quality of meat and bone meal and grease prepared by dry method chemical preparation is characterized by comprising a reaction kettle, wherein the reaction kettle comprises a dirty steam outlet and a superheated steam recovery port, the dirty steam outlet is sequentially connected with a circulating fan and a steam heater, and the air outlet end of the steam heater is connected with the superheated steam recovery port to form a steam circulation loop; a first three-way control valve is further arranged between the dirty steam outlet and the circulating fan, the inlet end of the first three-way control valve is communicated with the dirty steam outlet, one outlet end of the first three-way control valve is communicated with the circulating fan, and the other outlet end of the first three-way control valve is sequentially connected with a heat exchanger and an absorber to remove odor substances in steam; a cyclone dust collector is further arranged between the dirty steam outlet and the first three-way control valve, a dust collector air inlet communicated with the dirty steam outlet is arranged on the side face of the cyclone dust collector, a particulate matter outlet communicated with the reaction kettle is arranged at the bottom of the cyclone dust collector, and a dust collector air outlet communicated with the inlet end of the first three-way control valve is arranged at the top of the cyclone dust collector; a second three-way control valve is arranged between the first three-way control valve and the circulating fan, one inlet end of the second three-way control valve is connected with one outlet end of the first three-way control valve, the outlet end of the second three-way control valve is connected with the circulating fan, and the other inlet end of the second three-way control valve is connected with a fresh steam input pipeline; a heat recoverer is arranged between the other outlet end of the first three-way control valve and the heat exchanger; the adsorber comprises a tank body, a plurality of layers of active carbon plates arranged in the tank body, and an inlet of the tank body is connected with an air outlet of the heat exchanger.
2. The apparatus for improving the quality of meat and bone meal and oil prepared by dry chemical process according to claim 1, wherein the heat exchanger is a spiral plate heat exchanger.
3. A method for improving the quality of meat and bone meal and grease prepared by dry method, which is characterized in that the method is suitable for the device for improving the quality of meat and bone meal and grease prepared by dry method according to any one of claims 1-2, and comprises the following steps:
introducing superheated steam into the reaction kettle to remove water and odor substances in the meat and bone powder and grease, wherein the superheated steam is converted into dirty steam;
part of dirty steam in the reaction kettle is led into a heat exchanger for cooling, then is discharged after the odor substances in the dirty steam are adsorbed by an absorber, and the other part of dirty steam is led into a circulating fan for boosting, is heated by a steam heater, and enters the reaction kettle again for treating the moisture and the odor substances in the meat and bone meal and grease.
4. The method for improving the quality of meat and bone meal and grease prepared by dry method according to claim 3, wherein the step of introducing superheated steam into a reaction kettle to remove moisture and odor substances in the meat and bone meal and grease, the step of converting the superheated steam into dirty steam, the step of introducing part of dirty steam into a heat exchanger, the step of introducing part of dirty steam into the reaction kettle to be treated by an adsorber to be discharged, the step of introducing the other part of dirty steam into a circulating fan to be increased, the step of heating by a steam heater, and the step of introducing the dirty steam into the reaction kettle again to treat the moisture and odor substances in the meat and bone meal and grease, further comprises the following steps:
introducing the dirty steam into a cyclone dust collector;
the cyclone dust collector is used for removing particles in the dirty steam, the particles are introduced into the reaction kettle, and the dirty steam for removing the particles is respectively introduced into the circulating fan and the heat exchanger.
5. The method for improving the quality of meat and bone meal and grease prepared by dry chemical processing according to claim 3, wherein the other part of dirty steam is introduced into the circulating fan for pressurization, and is heated by the steam heater, and then enters the reaction kettle again for processing moisture and odor substances in the meat and bone meal and grease, and fresh steam is also introduced simultaneously when the other part of dirty steam is introduced into the circulating fan.
6. The method for improving the quality of meat and bone meal and grease prepared by dry chemical processing according to claim 3, wherein a part of the dirty steam in the reaction kettle is introduced into the heat exchanger for cooling, and after the odor substances in the dirty steam are adsorbed by the adsorber, the dirty steam is recycled by a heat recoverer before a part of the dirty steam is introduced into the heat exchanger for cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600334.0A CN108499509B (en) | 2018-06-12 | 2018-06-12 | Device and method for improving quality of meat and bone meal and grease prepared by dry method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600334.0A CN108499509B (en) | 2018-06-12 | 2018-06-12 | Device and method for improving quality of meat and bone meal and grease prepared by dry method |
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| Publication Number | Publication Date |
|---|---|
| CN108499509A CN108499509A (en) | 2018-09-07 |
| CN108499509B true CN108499509B (en) | 2023-06-30 |
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| CN201810600334.0A Active CN108499509B (en) | 2018-06-12 | 2018-06-12 | Device and method for improving quality of meat and bone meal and grease prepared by dry method |
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| JP2010280526A (en) * | 2009-06-03 | 2010-12-16 | Mitsubishi Materials Techno Corp | Equipment and method for making meat and bone scraps into fertilizer |
| CN102319718A (en) * | 2011-07-06 | 2012-01-18 | 加拿大国原企业有限公司 | A kind of waste disposal method |
| CN104028533A (en) * | 2014-05-20 | 2014-09-10 | 牧原食品股份有限公司 | Non-hazardous waste gas treatment and combustion device for pigs dying of diseases |
| CN104028535A (en) * | 2014-05-22 | 2014-09-10 | 牧原食品股份有限公司 | Harmless treatment method of dead livestock and treatment system thereof |
| CN104998893A (en) * | 2015-08-17 | 2015-10-28 | 浙江多宝田自动化设备有限公司 | Harmless treatment technological process for dead poultry and livestock and treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010280526A (en) * | 2009-06-03 | 2010-12-16 | Mitsubishi Materials Techno Corp | Equipment and method for making meat and bone scraps into fertilizer |
| CN102319718A (en) * | 2011-07-06 | 2012-01-18 | 加拿大国原企业有限公司 | A kind of waste disposal method |
| CN104028533A (en) * | 2014-05-20 | 2014-09-10 | 牧原食品股份有限公司 | Non-hazardous waste gas treatment and combustion device for pigs dying of diseases |
| CN104028535A (en) * | 2014-05-22 | 2014-09-10 | 牧原食品股份有限公司 | Harmless treatment method of dead livestock and treatment system thereof |
| CN104998893A (en) * | 2015-08-17 | 2015-10-28 | 浙江多宝田自动化设备有限公司 | Harmless treatment technological process for dead poultry and livestock and treatment system |
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