CN113333430B - Organic garbage waste resource pretreatment system and method - Google Patents
Organic garbage waste resource pretreatment system and method Download PDFInfo
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- CN113333430B CN113333430B CN202110468608.7A CN202110468608A CN113333430B CN 113333430 B CN113333430 B CN 113333430B CN 202110468608 A CN202110468608 A CN 202110468608A CN 113333430 B CN113333430 B CN 113333430B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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Abstract
The invention provides a system and a method for recycling pretreatment of organic waste, wherein the system for recycling pretreatment of organic waste comprises a sorting module and a processing module, the sorting module comprises a material receiving pool, a sorting machine, a mechanical sorting area, a recycling bin and a cutting machine, and the processing module comprises a cooking machine, a squeezing machine, a crushing machine and an insect feed bin. The invention can treat food and beverage rubbish, kitchen garbage, vegetable and fruit rubbish, food processing leftovers, overdue food and other organic rubbish wastes, utilize the sorting module to realize sorting and cutting of the organic rubbish, utilize the processing module to realize pollution-free conversion from the organic rubbish wastes to insect feed, sort out plastics, glass and the like for recycling, the treated by-product grease can be used as biodiesel or chemical raw materials, and the separated soup is recycled, thereby realizing resource and harmless pretreatment of the organic rubbish, and having high treatment efficiency and low investment cost.
Description
Technical Field
The invention relates to the technical field of organic garbage treatment, in particular to a system and a method for recycling and pretreating organic garbage wastes.
Background
With the rapid development of economy, the living standard of people is continuously improved, so that the vigorous development of the catering industry is driven, a large amount of organic garbage is generated, including food and beverage garbage, kitchen garbage, vegetable field garbage, fruit and vegetable garbage, food processing leftover materials, overdue food and the like, and the environment is greatly polluted and the resources are wasted due to improper treatment of the organic garbage.
The most traditional garbage treatment mode is incineration, and the garbage is directly incinerated after being dehydrated and dried, so that the treatment method has the greatest harm to the environment and is basically forbidden at present; another common treatment method is to send organic waste to a farm as feed, for example, as pig feed, but if the waste contains germs, large-scale pestilence is easily caused, which causes direct loss to the breeding industry and even may cause diseases to meat-eating people. In addition, organic waste can also be used for composting to produce organic fertilizer, but the treatment time is too long, generally more than 2 months, and the air in the treatment site is also very unpleasant. At present, the more advanced organic garbage treatment mode is to use the liquid oxygen fermentation technology, forms combustible gas with organic garbage through fermentation, and the slag charge can be as fertilizer use, and this kind of treatment mode can be to a great extent realize waste utilization, but the cost is higher, and the processing procedure can produce a large amount of sewage moreover, need carry out sewage secondary treatment, and improper handling still can cause secondary pollution.
The resource treatment of organic garbage by utilizing natural insects is a novel garbage treatment process, the organic garbage is subjected to pretreatment and then is used as a breeding material of insects, the treated high-protein insects can be used as feed of fishes, shrimps, crabs or poultry or as a protein raw material of industrial animals, and residue (insect dung sand) is a natural organic fertilizer. The treatment method for carrying out the organic waste recycling treatment by utilizing the insect breeding is a pure green process, secondary pollution is avoided, and the period of waste treatment is short, namely about 7 days. Before the organic garbage becomes a breeding material for insects, pretreatment is needed to be carried out so as to be suitable for the insects to eat. For different types of organic garbage, such as dry overdue food, fruit and vegetable garbage, kitchen garbage with large oil-water amount and the like, the adopted pretreatment processes are not completely the same, and in actual production, not only the treatment efficiency of the organic garbage needs to be improved, but also the equipment investment cost, the factory space and the like need to be considered.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a system and a method for recycling organic garbage wastes, which meet the process requirement of organic garbage treatment by insect breeding at present, improve the organic garbage treatment efficiency and consider investment cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an organic waste resourceful pretreatment systems, includes letter sorting module and processing module, the letter sorting module includes that the material receives pond, sorting machine, mechanical sorting district, retrieves feed bin and cutting machine, processing module is including cooking machine, squeezer, rubbing crusher and insect feed bin.
The input end of the sorting machine is connected with the material receiving pool, the sorting machine is provided with a fine material outlet and a coarse material outlet, and the coarse material outlet of the sorting machine is connected with the input end of the mechanical sorting area; the mechanical sorting area is provided with a first discharging end and a second discharging end, the first discharging end is connected with the recovery bin, the second discharging end is connected with the input end of the cutting machine, and the output end of the cutting machine and the fine material outlet of the sorting machine are both connected with the input end of the cooking machine; the input end of the squeezer is connected with the output end of the cooking machine, and the squeezer is provided with a slag outlet; the input end of the crusher is connected with a slag outlet of the squeezer; the output end of the pulverizer is connected with the insect feed bin.
Preferably, the material receiving pool with the input of cooking machine passes through the pipe connection, the import of pipeline is equipped with the filter screen, set up the suction pump in the pipeline, the oily water material in the material receiving pool passes through the suction pump is extracted in the cooking machine.
Preferably, after the sorting machine sorts, the materials with the size less than 30mm are output to the cooking machine from a fine material outlet of the sorting machine, and the materials with the size greater than or equal to 30mm are output to the mechanical sorting area from a coarse material outlet of the sorting machine.
Preferably, the mechanical sorting area is provided with a magnetic separator for sorting out metal substances in the materials.
Preferably, the processing module further comprises a three-phase separator, an oil-water separator, a recovered oil bin, a thickener and a clear water discharge tank, the squeezer further comprises an oil-soup outlet, an input end of the three-phase separator is connected with the oil-soup outlet of the squeezer, the three-phase separator comprises an oil outlet, a soup outlet and a residue outlet, the oil outlet of the three-phase separator is connected with the input end of the oil-water separator, the soup outlet of the three-phase separator is connected with the input end of the thickener, and the residue outlet of the three-phase separator is connected with the input end of the crusher; the thickener is provided with a clear water outlet and a concentrated solution outlet, the clear water outlet of the thickener is connected with the clear water discharge tank, and the concentrated solution outlet of the thickener is connected with the input end of the pulverizer; the oil-water separator is provided with an oil outlet end and a water outlet end, the oil outlet end of the oil-water separator is connected with the recovered oil bin, and the water outlet end of the oil-water separator is connected with the input end of the concentrator.
The invention also provides a resource pretreatment method of the organic waste, which comprises the following steps:
pre-sorting: conveying the organic garbage materials in the material receiving pool to a sorting machine, pre-sorting the organic garbage materials by using the sorting machine, conveying the fine materials smaller than 30mm to a cooking machine from a fine material outlet of the sorting machine, and conveying the coarse materials larger than or equal to 30mm to a mechanical sorting area from a coarse material outlet of the sorting machine;
mechanical sorting: the mechanical sorting area is provided with a sorting robot, plastics and glass mixed in the coarse materials are sorted by the sorting robot and conveyed to a recycling bin from a first discharging end so as to be recycled; conveying the residual coarse material to a cutting machine from a second discharge end;
cutting: cutting the residual coarse material into fine material by using a cutting machine, and conveying the cut fine material to a cooking machine;
and (3) cooking: the material is cooked by high-temperature steam, so that the effects of sterilization and grease dissolution are achieved;
and (3) squeezing: conveying the cooked material to a squeezer for squeezing to obtain grease and water in the material, and conveying the squeezed slag to a crusher from a slag outlet of the squeezer;
and (3) crushing: and crushing the squeezed slag by using a crusher, and conveying the crushed material to an insect feed bin to be used as feed for insect breeding.
Preferably, the organic garbage materials in the material receiving pool comprise one or more of food and beverage garbage, kitchen garbage, vegetable and fruit garbage, food processing leftovers and expired foods.
Preferably, before the cooking step, the oil and water in the material receiving pool are pumped into the cooking machine by a suction pump.
Preferably, the step of mechanically sorting further comprises the step of sorting out metal substances in the coarse material by using a magnetic separator.
Preferably, the step of pressing further comprises a step of oil soup material treatment, and the step of oil soup material treatment comprises the following steps: conveying the squeezed oil soup material from an oil soup material outlet of a squeezer to a three-phase separator, and performing three-phase separation on the oil soup material by using the three-phase separator to obtain slag, soup material and oil material with 8-10% of water content; conveying slag from a slag outlet of the three-phase separator to the crusher for crushing; the soup bases are conveyed to a thickener from a soup base outlet of the three-phase separator, the thickener is used for concentrating the soup bases to obtain clear water and concentrated solution, the clear water is discharged harmlessly, and the concentrated solution is conveyed to a grinder for grinding; the oil with 8% -10% of water content is conveyed from an oil outlet of the three-phase separator to an oil-water separator, oil-water separation is carried out by the oil-water separator, water and grease with less than 1% of water content are obtained, the water is conveyed from a water outlet end of the oil-water separator to a concentrator to be used as concentrated liquid, and the grease with less than 1% of water content is conveyed from a oil outlet end of the oil-water separator to a recovered oil bin to be used as biodiesel or chemical raw materials.
Compared with the prior art, the invention has the following beneficial effects: the organic waste recycling pretreatment system can be used for carrying out centralized treatment on organic waste such as food and beverage waste, kitchen waste, vegetable and fruit waste, food processing leftovers, overdue food and the like, sorting and cutting of the organic waste are realized by using the sorting module, pollution-free conversion from the organic waste to insect feed is realized by using the treatment module, plastics, glass and the like mixed in the organic waste are sorted out for recycling, the treated byproduct grease can be used as biodiesel or chemical raw materials, and the separated water is recycled, so that recycling and harmless pretreatment of the organic waste is realized, the treatment efficiency is high, and the investment cost is low.
Drawings
FIG. 1 is a schematic structural diagram of a recycling pretreatment system for organic waste according to the present invention;
FIG. 2 is a flow chart of the method for pre-treating organic waste for recycling.
In the figure, 10-sorting module, 11-material receiving pool, 12-sorting machine, 13-mechanical sorting area, 14-recovery bin, 15-cutting machine, 16-magnetic separator; 20-treatment module, 21-cooking machine, 22-squeezer, 23-pulverizer, 24-insect feed bin, 25-three-phase separator, 26-oil-water separator, 27-recovered oil bin, 28-thickener and 29-clear water discharge tank.
Detailed Description
In order to further understand the objects, structures, features, and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, fig. 1 is a schematic structural view of a system for recycling pretreatment of organic waste according to the present invention. The invention discloses a resource pretreatment system for organic waste, which comprises a sorting module 10 and a processing module 20, wherein the sorting module 10 comprises a material receiving pool 11, a sorting machine 12, a mechanical sorting area 13, a recovery bin 14 and a cutting machine 15, and the processing module 20 comprises a cooking machine 21, a squeezing machine 22, a crushing machine 23, an insect feed bin 24, a three-phase separator 25, an oil-water separator 26, a recovered oil bin 27, a thickener 28 and a clear water discharge pool 29. In application, the material receiving pool 11 is used for receiving organic garbage wastes such as food and beverage garbage, kitchen garbage, vegetable and fruit garbage, food processing leftovers, overdue food and the like, the sorting module 10 can realize sorting and cutting of the organic garbage, the treatment module 20 can realize pollution-free conversion from the organic garbage to insect feed, resources are recycled to the greatest extent, and environmental benefits and economic benefits are improved.
Specifically, referring to fig. 1, the input end of the sorter 12 is connected to the material receiving tank 11, the sorter 12 has a fine outlet and a coarse outlet, the coarse outlet of the sorter 12 is connected to the input end of the mechanical sorting area 13, and the fine outlet of the sorter 12 is connected to the input end of the cooking machine 21; after the sorting machine 12 sorts, the materials smaller than 30mm are output to the cooking machine 21 from the fine material outlet of the sorting machine 12, and the materials larger than or equal to 30mm are output to the mechanical sorting area 13 from the coarse material outlet of the sorting machine 12 for mechanical sorting. In addition, the organic waste material in the material receiving pool 11 generally contains oil and water, in order to process the oil and water material of the organic waste, the material receiving pool 11 is further connected with the input end of the cooking machine 21 through a pipeline, a filter screen is arranged at the inlet of the pipeline, a suction pump is arranged in the pipeline, and the oil and water material in the material receiving pool 11 is pumped into the cooking machine 21 through the suction pump.
The output end of the cutting machine 15 is connected with the input end of the cooking machine 21; the cooking machine 21 can perform centralized cooking on the oil-water material in the material receiving pool 11, the material conveyed from the fine material outlet of the sorting machine 12 and the material cut by the cutting machine 15, so as to achieve the effects of sterilization and grease dissolution, and recycle resources to the maximum extent.
The input end of the presser 22 is connected with the output end of the cooking machine 21, and the presser 22 can press the cooked materials to separate the slag materials from the oil soup materials; the squeezer 22 has the export of sediment material and oil and soup material, and the input of rubbing crusher 23 is connected with the sediment material exit linkage of squeezer 22, and the output of rubbing crusher 23 is connected with insect fodder storehouse 24, and rubbing crusher 23 can be smashed the sediment material that squeezes and obtain littleer fodder granule.
In order to recycle resources to the maximum extent, the processing module 20 of the organic waste recycling pretreatment system of the present invention further comprises a three-phase separator 25, an oil-water separator 26, a recovered oil bin 27, a thickener 28, and a clear water drain tank 29, so as to recycle the oil soup material squeezed by the squeezer 22. Specifically, referring to fig. 1, an input end of a three-phase separator 25 is connected to an oil and soup outlet of a squeezer 22, the three-phase separator 25 has an oil outlet, a soup outlet and a residue outlet, the oil outlet of the three-phase separator 25 is connected to an input end of an oil-water separator 26, the soup outlet of the three-phase separator 25 is connected to an input end of a thickener 28, and the residue outlet of the three-phase separator 25 is connected to an input end of a pulverizer 23; the thickener 28 is provided with a clear water outlet and a concentrated solution outlet, the clear water outlet of the thickener 28 is connected with the clear water discharge pool 29, and the concentrated solution outlet of the thickener 28 is connected with the input end of the pulverizer 23; the oil-water separator 26 has an oil outlet end and a water outlet end, the oil outlet end of the oil-water separator 26 is connected with the recovered oil bin 27, and the water outlet end of the oil-water separator 26 is connected with the input end of the thickener 28. The crusher 23 can intensively crush the slag generated after being squeezed by the squeezer 22, the slag after three-phase separation and the concentrated solution after concentration, so that the resource utilization rate is improved; clear water generated by the thickener is discharged without pollution, which is beneficial to improving environmental benefits; the grease after oil-water separation is conveyed to the recovered oil bin 27 and can be used as chemical raw materials or biodiesel, so that the economic benefit is improved.
In application, the devices may be connected by a conveying auger or a conveying belt to convey the material between different devices, for example, the material receiving tank 11 is connected with the input end of the sorting machine 12 by the conveying auger, the fine material outlet of the sorting machine 12 is connected with the input end of the cooking machine 21 by the conveying belt, the output end of the cooking machine 21 is connected with the input end of the presser 22 by the conveying belt, and the like, which is not limited in the present invention.
In the organic waste recycling pretreatment system, the devices are reasonably arranged, the space is compact, different types of organic waste can be treated in batches, the organic waste recovery efficiency is high, the investment cost is low, the organic waste recycling and harmless pretreatment can be realized, the prepared insect feed can be used for insect breeding, separated byproducts such as grease and the like can be recycled, and the win-win effect of environmental benefit and economic benefit is achieved.
Correspondingly, the invention also provides a method for performing resource pretreatment of organic waste by using the above system, please refer to fig. 1 and fig. 2 in combination, fig. 1 is a schematic structural diagram of the system for resource pretreatment of organic waste according to the invention; FIG. 2 is a flow chart of the method for pre-treating organic waste for recycling.
The invention discloses a resource pretreatment method of organic garbage wastes, which comprises the following steps:
pre-sorting: the material receiving pool 11 receives organic garbage materials such as food waste, kitchen waste, vegetable waste, fruit and vegetable waste, food processing leftovers, overdue food and the like, and conveys the organic garbage materials to the sorting machine 12 through an auger or a conveying belt, the organic garbage materials are pre-sorted by the sorting machine 12, fine materials smaller than 30mm are conveyed to the cooking machine 21 from a fine material outlet of the sorting machine 12, and coarse materials larger than or equal to 30mm are conveyed to the mechanical sorting area 13 from a coarse material outlet of the sorting machine 12. In addition, the oil and water materials in the material receiving pool 11 are pumped into the cooking machine 21 by a suction pump, so that centralized cooking is facilitated.
Mechanical sorting: a magnetic separator 16 is arranged at the front end of the mechanical sorting area 13, and metal substances in the coarse materials are sorted out by the magnetic separator 16, so that the recovery processing is convenient; the mechanical sorting area 13 is provided with a sorting robot, plastics and glass mixed in the coarse materials are sorted by the sorting robot and conveyed to a recycling bin 14 from a first discharging end so as to be recycled; the residual coarse material after sorting generally contains substances with certain hardness and certain volume, such as bones, shells, bamboo chopsticks and the like, and for convenience of subsequent treatment, the substances need to be cut into small particles, so that the residual coarse material needs to be conveyed from the second discharge end to the cutting machine 15 for cutting.
Cutting: the remaining coarse material is cut into fine material particles smaller than 30mm by the cutter 15, and the cut fine material particles are also conveyed to the cooking machine 21.
And (3) cooking: the cooking machine 21 receives the fine materials conveyed from the sorting machine 12, the oil-water materials extracted from the material receiving pool 11 and the fine materials cut by the cutting machine 15, and performs centralized cooking treatment; the cooking machine 21 uses high-temperature steam to cook the materials, so that the effects of sterilization and grease dissolution are achieved, and the problem that the small-diameter materials are rotten and smelly in a short time due to high contents of moisture, grease and organic matters and raw and cooked mixing is solved.
And (3) squeezing: the cooked materials are conveyed to a presser 22 for pressing, grease and water in the materials are pressed out, and the pressed slag is conveyed to a crusher 23 from a slag outlet of the presser 22; meanwhile, the squeezed oil and soup materials are conveyed to a three-phase separator 25 from an oil and soup material outlet of the squeezer 22, and the three-phase separator 25 is used for carrying out three-phase separation on the oil and soup materials to obtain slag materials, soup materials and oil materials with 8% -10% of water content; conveying the slag from a slag outlet of the three-phase separator 25 to the crusher 23 for crushing; the soup bases are conveyed to a thickener 28 from a soup base outlet of the three-phase separator 25, the thickener 28 is used for concentrating the soup bases to obtain clear water and concentrated solution, the clear water is discharged harmlessly, and the concentrated solution is conveyed to a grinder 23 for grinding; the oil with 8-10% of water content is transported from the oil outlet of the three-phase separator 25 to the oil-water separator 26, oil-water separation is performed by the oil-water separator 26 to obtain water and oil with less than 1% of water content, the water is transported from the water outlet end of the oil-water separator 26 to the thickener 28 to be used as a concentrated solution, and the oil with less than 1% of water content is transported from the oil outlet end of the oil-water separator 26 to the recovered oil bin 27 to be used as biodiesel or chemical raw materials.
And (3) crushing: the crushed slag, the slag after three-phase separation and the concentrated solution are intensively crushed by a crusher 23, and the crushed material is conveyed to an insect feed bin 24 and can be used as feed for insect breeding.
In application, the oil-water separator 26 can be a vertical oil-water separator commonly available in the market, and can realize high-efficiency separation of oil and water and improve separation effect and yield by adopting a centrifugal separation technology. An aerator can be arranged in the clear water discharge tank and used for removing odor in the clear water.
The organic waste recycling pretreatment system and method provided by the invention are used for pretreating organic waste, so that the investment cost is low, the recovery efficiency is high, the organic waste recycling and harmless treatment can be realized, and the environmental benefit and the economic benefit can be improved.
In summary, the invention provides a system and a method for recycling pretreatment of organic waste, the sorting and cutting of organic waste are realized by using a sorting module, pollution-free conversion from organic waste to insect feed is realized by using a treatment module, plastics, glass and the like mixed in materials are sorted out for recycling, the treated byproduct oil is used as biodiesel or chemical raw materials, and the separated water is recycled, so that the recycling and harmless pretreatment of organic waste is realized, the treatment efficiency is high, and the investment cost is low.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (7)
1. A pretreatment method of an organic garbage waste recycling pretreatment system is characterized in that: the organic waste recycling pretreatment system comprises a sorting module and a processing module, wherein the sorting module comprises a material receiving pool, a sorting machine, a mechanical sorting area, a recycling bin and a cutting machine, and the processing module comprises a cooking machine, a squeezing machine, a crushing machine and an insect feed bin; the input end of the sorting machine is connected with the material receiving pool, the sorting machine is provided with a fine material outlet and a coarse material outlet, and the coarse material outlet of the sorting machine is connected with the input end of the mechanical sorting area; the mechanical sorting area is provided with a first discharging end and a second discharging end, the first discharging end is connected with the recovery bin, the second discharging end is connected with the input end of the cutting machine, and the output end of the cutting machine and the fine material outlet of the sorting machine are both connected with the input end of the cooking machine; the input end of the squeezer is connected with the output end of the cooking machine, and the squeezer is provided with a slag outlet; the input end of the crusher is connected with a slag outlet of the squeezer; the output end of the pulverizer is connected with the insect feed bin; the processing module further comprises a three-phase separator, an oil-water separator, a recovered oil bin, a concentrator and a clear water discharge pool, the squeezer is further provided with an oil and soup material outlet, the input end of the three-phase separator is connected with the oil and soup material outlet of the squeezer, the three-phase separator is provided with an oil material outlet, a soup material outlet and a residue material outlet, the oil material outlet of the three-phase separator is connected with the input end of the oil-water separator, the soup material outlet of the three-phase separator is connected with the input end of the concentrator, and the residue material outlet of the three-phase separator is connected with the input end of the pulverizer; the thickener is provided with a clear water outlet and a concentrated solution outlet, the clear water outlet of the thickener is connected with the clear water discharge tank, and the concentrated solution outlet of the thickener is connected with the input end of the crusher; the oil-water separator is provided with an oil outlet end and a water outlet end, the oil outlet end of the oil-water separator is connected with the recovered oil bin, and the water outlet end of the oil-water separator is connected with the input end of the thickener;
the pretreatment method comprises the following steps:
pre-sorting: conveying the organic garbage materials in the material receiving pool to a sorting machine, pre-sorting the organic garbage materials by using the sorting machine, conveying fine materials smaller than 30mm to a cooking machine from a fine material outlet of the sorting machine, and conveying coarse materials larger than or equal to 30mm to a mechanical sorting area from a coarse material outlet of the sorting machine;
mechanical sorting: the mechanical sorting area is provided with a sorting robot, plastics and glass mixed in the coarse materials are sorted by the sorting robot and conveyed to a recycling bin from a first discharging end so as to be recycled; conveying the residual coarse material to a cutting machine from a second discharge end;
cutting: cutting the residual coarse material into fine material by using a cutting machine, and conveying the cut fine material to a cooking machine;
and (3) cooking: the material is steamed by high-temperature steam, so that the effects of sterilization and grease dissolution are achieved;
and (3) squeezing: conveying the cooked material to a squeezer for squeezing to obtain grease and water in the material, and conveying the squeezed slag to a crusher from a slag outlet of the squeezer;
and (3) crushing: crushing the squeezed slag by using a crusher, and conveying the crushed material to an insect feed bin to be used as feed for insect breeding;
processing the oil soup bases: conveying the squeezed oil soup material from an oil soup material outlet of a squeezer to a three-phase separator, and performing three-phase separation on the oil soup material by using the three-phase separator to obtain slag, soup material and oil material with 8-10% of water content; conveying slag from a slag outlet of the three-phase separator to the crusher for crushing; conveying the soup bases to a thickener from a soup base outlet of the three-phase separator, concentrating the soup bases by using the thickener to obtain clear water and concentrated solution, discharging the clear water in a harmless manner, and conveying the concentrated solution to a grinder for grinding; the oil with 8% -10% of water content is conveyed from an oil outlet of the three-phase separator to an oil-water separator, oil-water separation is carried out by the oil-water separator, water and grease with less than 1% of water content are obtained, the water is conveyed from a water outlet end of the oil-water separator to a concentrator to be used as concentrated liquid, and the grease with less than 1% of water content is conveyed from a oil outlet end of the oil-water separator to a recovered oil bin to be used as biodiesel or chemical raw materials.
2. The pretreatment method of the organic waste recycling pretreatment system according to claim 1, wherein: the material receiving pool is connected with the input end of the cooking machine through a pipeline, a filter screen is arranged at the inlet of the pipeline, a suction pump is arranged in the pipeline, and oil and water materials in the material receiving pool are extracted into the cooking machine through the suction pump.
3. The pretreatment method of the organic waste recycling pretreatment system according to claim 1, wherein the pretreatment method comprises: after the sorting machine sorts, the materials smaller than 30mm are output to the cooking machine from a fine material outlet of the sorting machine, and the materials larger than or equal to 30mm are output to the mechanical sorting area from a coarse material outlet of the sorting machine.
4. The pretreatment method of the organic waste recycling pretreatment system according to claim 1, wherein: the mechanical sorting area is provided with a magnetic separator for sorting out metal substances in the materials.
5. The pretreatment method of the organic waste recycling pretreatment system according to claim 1, wherein: the organic garbage materials in the material receiving pool comprise one or more of food and beverage garbage, kitchen garbage, vegetable and fruit garbage, food processing leftovers and overdue foods.
6. The pretreatment method of the organic waste recycling pretreatment system according to claim 1, wherein: before the step of cooking, the oil and water materials in the material receiving pool are pumped into the cooking machine through a suction pump.
7. The pretreatment method of the organic waste recycling pretreatment system according to claim 1, wherein: the step of mechanical sorting further comprises the step of sorting out metal substances in the coarse materials by using a magnetic separator.
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