CN216297490U - Device for treating and recycling garbage by supercritical water - Google Patents
Device for treating and recycling garbage by supercritical water Download PDFInfo
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Abstract
This application belongs to the environmental protection field, concretely relates to adopt supercritical water to handle and device of utilization rubbish, it is specific: the system comprises a garbage pretreatment system, a supercritical water oxidation unit and a resource utilization unit which are connected in sequence, wherein the garbage pretreatment system is used for sterilizing, percolating, classifying and pulping garbage; the supercritical water oxidation unit is used for carrying out supercritical water oxidation treatment on the slurry; the resource utilization unit is used for carrying out heat recovery and recycling to the many first hot flows that produce after the reaction, and this application utensil whole adopts sealed processing, takes up an area of for a short time, and the processing rate is high and the in-process can not produce peculiar smell and burn the flying ash, has avoided causing secondary pollution, need not special professional equipment very big to the filtration liquid of difficult processing etc. and has saved treatment cost.
Description
Technical Field
The utility model belongs to the environment-friendly and energy-saving technology, and particularly relates to a device for treating and recycling garbage by adopting supercritical water.
Background
At present, municipal solid waste, kitchen waste and sludge are treated by adopting a separate treatment mode, so that the problems of large investment limit, inconvenience in management, easiness in secondary pollution and the like exist. The average water content of the municipal solid waste is about 50% and the organic matter content is extremely high, and under the condition of lacking effective classification of the waste, the common treatment mode is as follows: sanitary landfill, composting and incineration. For the three treatment methods, the following disadvantages are present: the general occupied area of sanitary landfill is poor in volume reduction effect, effective coping means for percolation liquid, flies and the like are lacked, and the landfill garbage is not subjected to harmless treatment, so that bacteria and viruses still remain, hidden dangers such as heavy metal pollution of methane and the like still exist; the composting treatment has extremely high requirements on garbage classification, a large amount of odor can be generated in the aerobic decomposition process to pollute the environment, heavy metal elements in the garbage are difficult to stabilize, the treatment period is long, and the subsequent generated residues still need secondary treatment; the incineration method usually needs to separately treat solid garbage and leachate, the treatment process of the leachate is complex, the equipment investment cost is high, and in addition, a large amount of fly ash generated by combustion still needs secondary harmless treatment.
Typical urban kitchen waste comprises 48.4% of carbon, 6.9% of nitrogen, the ratio of carbon to nitrogen is about 7.0, and the water content is 80.3%. The garbage comprises starch, cellulose, protein, lipid, inorganic salt and the like in chemical composition, wherein organic matters are taken as main materials, and in addition, the garbage also contains plastics, bones, stones, chopsticks, glass, metal and the like; the conventional kitchen waste treatment mainly comprises the following steps: (1) conventional landfilling and incineration methods. The method is easy to cause secondary pollution to the environment, and the kitchen waste has high water content and is not easy to adopt the traditional incineration method; (2) and (5) processing the feed. The method has the problems of food chain pollution risk and biological ethics and variation. In 1997 and 1998, the livestock group died due to the hog cholera epidemic disease caused by the organic garbage feed, the reliability of residents on the feed is reduced, and the animal husbandry is not prosperous. The feed chemical process has great hidden danger on the safety of animal food; (3) and (6) aerobic composting. The common aerobic compost has high requirement on the purity of the feeding material and large occupied area. The high-temperature aerobic composting needs a large amount of heat energy, the operation cost is high, the general composting period is long, and the composting effect is not ideal; (4) anaerobic composting, namely converting methane produced by the kitchen waste into electric energy or heat energy by adopting an anaerobic process, and performing secondary fermentation composting treatment on residues in an anaerobic digestion tank. About 30 percent of organic matters of the kitchen waste are not degraded after anaerobic fermentation and exist in biogas residues. Therefore, the biogas residue still needs to be properly treated.
With the continuous enlargement of the scale of urban sewage treatment in China, the sewage treatment degree is increased year by year, and the sludge yield is also increased sharply. The sludge contains a large amount of pathogenic bacteria, parasites (eggs), heavy metals such as copper, zinc, cadmium, mercury and the like, salts, polychlorinated biphenyl, dioxin, radioactive nuclide and other refractory toxic and harmful substances. Meanwhile, the sludge contains a large amount of high-concentration organic matters such as protein, fat, carbohydrate and the like, so that the sludge has high viscosity, high water content and poor solid-liquid separation performance, and further subsequent treatment such as sludge composting, incineration or landfill and the like is influenced. The existing general sludge treatment technology, whether dehydration or digestion or direct treatment, has the problems of low efficiency, high energy consumption, easy generation of secondary pollution and the like. The development of a treatment technology with wide adaptability, high treatment efficiency, economy and no secondary pollution is urgently needed.
SUMMERY OF THE UTILITY MODEL
For solving at least one technical problem that exists in the above-mentioned field, this application provides an adopt supercritical water to handle and utilize device of rubbish as resources, and is specific:
the utility model provides a device for treating and recycling garbage by supercritical water, which comprises:
a waste pretreatment system comprising: the garbage sorting device comprises a garbage storage device, a sorting device and a pulping device; the garbage storage device is connected with the sorting device through a pipeline, and the garbage storage device is connected with the pulping device through a pipeline; the sorting device is connected with the pulping device through a pipeline;
the garbage storage device is used for collecting, sterilizing, deodorizing and percolating garbage; producing leachate which is conveyed to the pulping device; the sorting device is used for sorting, screening and crushing the percolated garbage; the pulping device is used for carrying out ultrafine grinding on the organic components from the sorting device and then mixing the organic components with percolate from the garbage storage device to prepare slurry;
the supercritical water oxidation unit is connected with the pulping device through a pipeline and is used for carrying out supercritical water oxidation treatment on the pulp to generate clean solid and supercritical mixed multi-element hot fluid;
and the resource utilization unit is connected with the supercritical water oxidation unit through a pipeline and is used for receiving the supercritical mixed multi-element hot fluid, recovering heat in the supercritical mixed multi-element hot fluid and converting the heat into saturated steam for output.
When the device is used, odor generated by garbage is removed by spraying biological bacteria liquid into the storage pool of the garbage storage device, and garbage leachate generated by the storage pool is conveyed to a subsequent pulping device by a pump for pulping without needing to treat independent garbage leachate like the traditional garbage landfill or incineration process. Solid residues and gas generated by the supercritical water oxidation unit are clean, heavy metals in the solid are mineralized, and discharged gas does not contain pollution components such as dioxin, sulfide and the like; because of adopting supercritical water oxidation mode, no fly ash is produced in the whole treatment process. Due to supercritical mixed multi-element thermal fluid (supercritical water, supercritical CO)2And nitrogen), so that the power generation efficiency is higher than that of the traditional waste incineration power generation, and the efficient clean utilization of resources is realized.
Preferably, in the above device, the garbage storage device comprises a sealed cabin and a biological bacteria liquid sprayer, a sealed cover is arranged at the top of the sealed cabin, a solid discharge port and a liquid discharge port are respectively arranged on the cabin wall, and a seepage filter screen is arranged inside the sealed cabin; the nozzle of the biological bacteria liquid sprayer extends into the sealed cabin from the sealed cover or the sealed cabin wall and is used for spraying deodorant bacteria; the solid discharge port is connected with the sorting device through a pipeline, and the liquid discharge port is connected with the pulping device through a pipeline.
Preferably, in the above device, the sorting device is provided with an organic matter discharge port and an inorganic matter discharge port, the organic matter discharge port is connected with the pulping device through a pipeline, and the inorganic matter discharge port is further provided with a treatment device for recovering the screened inorganic garbage after treatment.
Preferably, in the above apparatus, the pulp making apparatus comprises: the organic garbage treatment device is characterized by comprising a grinder and a homogenizer, wherein the grinder is used for fully grinding organic garbage to improve the reaction efficiency, and the homogenizer is used for uniformly mixing the finely-crushed organic garbage and leachate to prepare slurry. Mixing to form slurry to facilitate delivery to the supercritical water oxidation unit and to improve reaction efficiency.
Preferably, in the above apparatus, the supercritical water oxidation unit includes: includes an oxidant supply system configured to provide an oxidant to a supercritical water oxidation reactor, and a supercritical water oxidation reactor. The oxidant and the material entering the supercritical water oxidation reactor have violent oxidation reaction.
Preferably, in an embodiment, the supercritical water oxidation unit further comprises a heat exchange system, the heat exchange system is configured to receive the supercritical mixed multi-element hot fluid generated after the supercritical water oxidation reactor is reacted and convey the supercritical mixed multi-element hot fluid to the resource utilization unit, and is also configured to heat the material entering the supercritical water oxidation reactor in a heat exchange manner during the conveying process.
Preferably, in another embodiment, a heater is further arranged between the discharge port of the slurry preparation device and the feed port of the supercritical water oxidation reactor, and is used for heating the material entering the supercritical water oxidation reactor. And when the concentration of the organic matters in the slurry is low, the heater is turned on to preheat the organic matters, and the organic matters are conveyed to the supercritical water oxidation reactor after reaching the reaction required temperature.
Furthermore, in the above device, the supercritical water oxidation reactor can be replaced by a supercritical water thermal combustion reactor, in this embodiment, the fuel entering the supercritical water oxidation reactor can be at normal temperature, and a part of high-concentration slurry directly serves as the fuel, is heated to the ignition temperature of the fuel under the condition of being fully mixed with oxygen, is sprayed into the supercritical water thermal combustion reactor to form a stable water thermal combustion flame and is used for rapidly heating the inlet material to the temperature above the supercritical temperature, so that more severe oxidation reaction and heat release can occur.
Preferably, the resource utilization unit comprises a steam generator and a water softening device, wherein the steam generator is connected with the supercritical water oxidation unit and is used for receiving the reacted supercritical mixed multi-element thermal fluid; the softened water device is used for providing softened water for the steam generating device so as to enable the softened water to fully exchange heat to generate steam meeting the requirement. In this embodiment, the high-temperature high-pressure supercritical mixed multi-element thermal fluid (supercritical water, supercritical CO) from the supercritical water oxidation unit2And nitrogen) to perform sufficient heat exchange between the steam generator and softened water from the softened water device to generate steam meeting the requirements, and the steam can be used for heat supply or power generation to realize the recycling and clean utilization of garbage. The water after heat exchange can be subjected to advanced treatment and then directly discharged after reaching the standard or reused in a pulping device; discharged CO2The method can be used for recycling and planning emission, and low-carbon emission is realized.
Preferably, the resource utilization unit further comprises a water treatment device, wherein the water treatment device comprises a pressure reducer, a three-phase separator and a deep water treatment device which are sequentially connected with the steam generator; the pressure reducer is used for reducing the pressure of the supercritical mixed multi-element heat flow to liquid and conveying the liquid to the three-phase separator for solid-liquid separation; the advanced water treatment device is used for carrying out innocent treatment on the liquid generated by the three-phase separator. Preferably, the steam generator is further connected with an inorganic matter outlet of the sorting device and is used for conveying a part of saturated steam to clean the recyclable inorganic garbage.
In the utility model, the supercritical water refers to water with temperature and pressure above critical points (T is more than or equal to 374.15 ℃ and p is more than or equal to 22.12MPa), compared with normal water, the main physical parameters of the supercritical water such as density, viscosity, ionic volume and dielectric constant are obviously reduced, the diffusion coefficient is higher, the mass transfer performance is good, the supercritical water can be completely dissolved with nonpolar gas and hydrocarbon substances, and inorganic salts are almost insoluble. Supercritical hydrothermal combustion is a novel combustion mode in which fuel or organic waste with a certain concentration and an oxidant generate a violent oxidation reaction in a supercritical water environment to generate hydrothermal flames. The supercritical hydrothermal combustion technology can further improve the process advantages of supercritical water oxidation treatment of high-concentration organic waste. When hydrothermal flame of hydrothermal combustion is used as an internal heat source of the supercritical water oxidation reaction, the inlet material of the reactor does not need to be preheated to the supercritical temperature, so that equipment which is easy to corrode and block a critical temperature area can be omitted in the supercritical water oxidation system process, and the overall reliability of the system is improved.
The technology of the utility model has at least the following beneficial technical effects:
(1) the garbage storage unit is provided with a biological bacteria liquid spraying system and a sealing device to prevent odor from generating and leaking, and a clean production environment is kept.
(2) The landfill leachate generated by the landfill storage unit is directly conveyed to the pulping unit for pulping, and the traditional complex expensive landfill leachate treatment process and equipment are not needed.
(3) A mechanical sorting system is adopted, and combustible materials, recyclable materials and inert materials in the household garbage and the kitchen garbage are classified and recycled. The organic components are conveyed to a pulping system for pulping and homogenizing. The method adopts a mechanical classification method to recover the recyclable materials, the inert materials and the combustible materials, thereby avoiding the generation of a large amount of fly ash in the traditional garbage incineration method and avoiding the special treatment problem (such as solidification and landfill) of the fly ash.
(4) Organic components generated by the mechanical sorting system and the landfill leachate are fully ground and homogenized through a pulping device so as to meet the feeding requirement of a subsequent supercritical water oxidation unit. The defect that certain fuel needs to be added due to insufficient combustion value of the traditional garbage incineration process because the water content of organic components in the garbage is high is avoided.
(5) And fully grinding and tempering (including homogenizing and tempering fixed solid content rate) the landfill leachate generated by the garbage storage unit and organic components in the garbage by a pulping device to prepare the slurry with high water content. The process fully utilizes the advantages that organic components in the garbage have high water content and the garbage leachate does not need to be separately treated, and can be directly pumped to an ultrafiltration critical water oxidation unit by a high-pressure pump under the condition of high water content.
(6) The characteristics of high diffusion coefficient, good mass transfer performance and complete mutual solubility with nonpolar gas and hydrocarbon substances are fully utilized for physical parameters of water, such as density, viscosity, ionic volume and dielectric constant, in a supercritical state, and under the condition of filling an oxidant (air, oxygen-enriched air or liquid oxygen), violent oxidation exothermic reaction can be rapidly generated, organic matters are thoroughly oxidized, and pollutants generated by a traditional garbage incineration process, such as dioxin, nitrogen oxides, sulfides, dust and the like, are not generated.
(7) A large amount of heat can be released in the supercritical water oxidation process, and in addition to maintaining self heat balance (so that the operation cost is far lower than that of the traditional waste incineration process) in the normal operation process, the redundant heat is recycled. The resource recycling mode adopts the mode of directly recycling heat or generating electricity. The high-temperature high-pressure multi-element thermal fluid generated by the supercritical water oxidation reactor (the supercritical water heat combustion reactor is a special form of the supercritical water heat combustion reactor) has the heat conversion efficiency far higher than that of the traditional waste incineration power generation process.
(8) The city domestic waste, kitchen waste and municipal sludge cooperative treatment green process based on the supercritical water oxidation technology can carry out unified and thorough cooperative treatment on the city domestic waste, the garbage percolate, the kitchen waste and the municipal sludge and thoroughly convert organic components in the city domestic waste, the kitchen waste and the municipal sludge into heat energy or electric energy. The equipment does not generate the problem of secondary pollution caused by conventional waste incineration, such as dioxin, fly ash and the like, and is equipment for the cooperative treatment of green municipal domestic waste, kitchen waste and sludge based on a 'double-carbon' target of a new generation.
Drawings
FIG. 1 is a schematic diagram showing the connection relationship of the parts of the apparatus for treating and recycling garbage by using supercritical water according to the present invention;
FIG. 2 is a schematic diagram showing the connection relationship between the components of the apparatus for treating and recycling garbage using supercritical water according to the present invention, in which a heat exchanger is used
1. A garbage storage device, a 1-1-biological bacteria liquid spraying device;
2. sorting device
3. Pulping device
4. Supercritical water oxidation unit, 4-1 supercritical water oxidation reactor, 4-2 oxidant supplier, 4-3 heat exchanger and 4-4 heater
5. The system comprises a resource utilization unit, a 5-1 steam generator, a 5-3 water tank, a 5-4 softened water preparation device, a 5-5 pressure reducer, a 5-6 three-phase separator and a 5-7 deep water treatment device.
FIG. 3 is a flow chart of the method for treating and recycling garbage with supercritical water.
FIG. 4 shows a supercritical water oxidation reaction scheme.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The present application will be described in further detail below with reference to fig. 1 and 2.
The application discloses supercritical water refuse treatment device, as shown in figure 1 including refuse pretreatment system, supercritical water oxidation unit 4 and resource utilization unit 5 that connect gradually.
Specifically, in this embodiment, the garbage pretreatment system includes: the garbage storage device 1, the sorting device 2 and the pulping device 3 are connected in sequence.
Wherein, rubbish storage device 1 includes: the sealed cabin, its top is provided with sealed lid, and the lateral wall is provided with solid discharge gate and liquid discharge gate respectively with the bottom, and inside is provided with oozes the filter screen, is provided with biological fungus liquid sprinkler 1-1 on the sealed lid for spray biological fungus liquid to the rubbish of inside and kill bacterium and virus wherein, prevent to produce the foul smell, and the solid discharge gate is connected with sorting unit 2, and the liquid discharge gate is connected with slurrying device 3.
The sorting device 2 is used for sorting the garbage with relatively low water content after percolation, screening combustible substances, recyclable substances, inert materials and organic substances after crushing, conveying the combustible substances, the recyclable substances and the inert materials to an inorganic substance discharge port and recycling the combustible substances, the recyclable substances and the inert materials, and conveying screened organic components to the pulping device 3 through the organic substance discharge port.
In some embodiments, the inorganic matter discharge port of the sorting device 2 is further provided with a processing device for processing inorganic matter, the processing device including: derived Fuel (RDF) breakers and/or block machines, and the like.
The pulp making device 3 includes: and a grinder and a homogenizer are arranged, wherein the grinder is used for carrying out ultrafine grinding on the organic matters conveyed by the sorting device 2, and the homogenizer is used for uniformly mixing the finely-ground organic matters with the percolate conveyed by the garbage storage device 1 to prepare slurry with the water content of 10-15%.
Supercritical water oxidation unit 4 includes supercritical water oxidation reactor 4-1 and oxidant supply 4-2, where oxidant supply system 4-2 is configured to provide an oxidant to critical water oxidation reactor 4-1. The oxidant and the slurry entering the supercritical water oxidation reactor 4-1 have violent oxidation reaction.
In some embodiments, a heater 4-4 is further arranged between the discharge port of the pulping device 3 and the feeding port of the supercritical water oxidation reactor 4-1, and the heater 4-4 is used for preheating the slurry organic matter when the concentration of the slurry organic matter is relatively low, and conveying the slurry organic matter to the supercritical water oxidation reactor 4-1 after the slurry organic matter reaches the reaction required temperature.
In some embodiments, as shown in fig. 2, a heat exchanger 4-3 is further disposed in the supercritical water oxidation unit 4. The heat exchanger 4-3 is used for receiving high-temperature high-pressure multi-element hot fluid discharged after the reaction of the supercritical water oxidation reactor 4-1, sending the high-temperature high-pressure multi-element hot fluid to the resource utilization unit 5, and meanwhile, preheating slurry which is about to enter the supercritical water oxidation reactor 4-1 in a heat exchange mode in the transmission process.
The resource utilization unit is used for receiving high-temperature high-pressure multi-element hot fluid discharged after the reaction of the supercritical water oxidation reactor 4-1, various forms can be selected according to requirements, specifically, the resource utilization unit is a steam generator 5-1 in the application, the steam generator 5-1 is also sequentially connected with a softened water preparation device 5-4 and a water tank 5-3, softened water forms saturated steam after being subjected to sufficient heat exchange through the steam generator 5-1, and the water after heat exchange can be directly discharged and recycled.
In some embodiments, the steam generator 5-1 is also connected to a processing device in the sorting device for providing the energy required for processing combustible, recoverable and inert materials.
In some embodiments, the discharge port of the steam generator 5-1 is further provided with a water treatment device, specifically: the pressure reducer 5-5, the three-phase separator 5-6 and the deep water treatment device 5-7 are connected in sequence; the pressure reducer 5-5 is used for reducing the pressure of the multi-element hot fluid into liquid, the three-phase separator 5-6 receives the liquid conveyed by the pressure reducer 5-5 and separates salt or sulfide therein, and the liquid is conveyed to the deep water treatment device 5-7 for removing impurities and is discharged after being regulated to be neutral
Examples of specific applications
The method comprises the following steps: as shown in fig. 3, the household garbage is put into a garbage storage device 1 for sealing sterilization and percolation, the solid matters are sent to a sorting device 2, the percolation liquid is directly sent to a pulping device 3, and if the generated percolation liquid is less, the percolation liquid can be mixed with municipal sludge and then sent to the pulping device 3; if the garbage contains restaurant garbage, the garbage can be directly sent to the sorting device 2 in the second step without the step.
Step two: and (3) crushing and classifying the garbage conveyed in the step one by a sorting device 2, directly conveying the combustible materials, recoverable materials and inert materials which are screened out to a treatment device, directly recovering the processed garbage, and conveying the organic materials to a pulping device 3.
Step three: and fully grinding the organic matters obtained in the step two, and then preparing the organic matters, percolate and/or municipal sludge into slurry, wherein the COD value is 180000 mg/L.
Step four: as shown in fig. 4, an oxidant supplier 4-2 is started, and the supercritical water oxidation reactor 4-1 is adjusted to a supercritical water heat combustion reactor mode and then fed into slurry, wherein the reaction temperature is 5500C, the pressure is 25MPa, the residence time is 5-10 min, and the peroxide coefficient is 1.2, and because the slurry contains a large amount of organic matters, the heat generated after the oxidation reaction in the supercritical water oxidation reactor 4-1 can reach heat balance without adding an additional heating source, a small amount of solid residues can be directly discharged after the reaction is completed, and the residual high-temperature high-pressure multi-element heat flow is conveyed to a steam generator 5-1.
Step five: and (3) starting the water tank 5-3 to supply water to the softened water preparation device 5-4 and carrying out softened water treatment, and finally conveying the softened water to the steam generator 5-1 to generate saturated steam which can be used for refrigerating and heating or generating clean energy.
In this reaction, the generated calorific value is:
Q＝1.2×COD×4.35×10-3×3200(kJ/L)；
where the COD is in g/L, the reaction heat values and the required amount of air of the various substances and components, although different, are approximately the same for the amount of heat released per kg of air, which is approximately: 2900 to 3400 kJ/L. The heat generated by treating 1000 cubes of the above slurry per day is 3.0X 109kJ, theoretical power generation 835200 degrees.
The thermal efficiency of the reactor is 90%, the efficiency of the steam turbine is 50%, the efficiency of the generator is 95%, and the actual electricity generation amount is 357048 degrees.
The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications to or examples of implementations described may occur to those skilled in the art to which the disclosure pertains
Supplemented or substituted in a similar manner, but without departing from the spirit of the application or exceeding the scope as defined by the appended claims.
Claims (8)
1. The utility model provides an adopt supercritical water to handle and utilize device of rubbish as resources which characterized in that includes:
a waste pretreatment system comprising: the garbage sorting device comprises a garbage storage device, a sorting device and a pulping device; the garbage storage device is connected with the sorting device through a pipeline, and the garbage storage device is connected with the pulping device through a pipeline; the sorting device is connected with the pulping device through a pipeline;
the garbage storage device is used for collecting, sterilizing, deodorizing and percolating garbage; producing leachate which is conveyed to the pulping device; the sorting device is used for sorting, screening and crushing the percolated garbage; the pulping device is used for carrying out ultrafine grinding on the organic components from the sorting device and then mixing the organic components with percolate from the garbage storage device to prepare slurry;
the supercritical water oxidation unit is connected with the pulping device through a pipeline and is used for carrying out supercritical water oxidation treatment on the pulp to generate clean solid and supercritical mixed multi-element hot fluid;
and the resource utilization unit is connected with the supercritical water oxidation unit through a pipeline and is used for receiving the supercritical mixed multi-element hot fluid, recovering heat in the supercritical mixed multi-element hot fluid and converting the heat into saturated steam for output.
2. The apparatus for supercritical water treatment and resource utilization of garbage according to claim 1, wherein the sorting device is provided with an organic material outlet and an inorganic material outlet, the organic material outlet is connected with the pulping device through a pipeline, and the inorganic material outlet is further provided with a treatment device for treating and recycling the screened inorganic garbage.
3. The apparatus for supercritical water treatment and resource utilization of waste according to claim 1, wherein the pulping apparatus comprises: the device is provided with a grinder and a homogenizer, the grinder is used for fully grinding organic garbage to improve the reaction efficiency, and the homogenizer is used for uniformly mixing the finely-crushed organic garbage and leachate to prepare slurry and conveying the slurry to the supercritical water oxidation unit.
4. The apparatus for supercritical water treatment and resource utilization of waste according to claim 1, wherein the supercritical water oxidation unit comprises: an oxidant supply system and a supercritical water oxidation reactor, the oxidant supply system configured to provide an oxidant to the supercritical water oxidation reactor.
5. A device for supercritical water treatment and resource utilization of waste as claimed in claim 4, wherein a heater is further provided between the slurry making device and the supercritical water oxidation reactor for heating the material entering the supercritical water oxidation reactor.
6. The apparatus for supercritical water treatment and resource utilization of waste according to claim 1, wherein the resource utilization unit comprises a steam generator and a water softening device, the steam generator is connected with the supercritical water oxidation unit and is used for receiving the reacted supercritical mixed multi-element thermal fluid; the water softening device is used for providing softened water for the steam generator to enable the steam generator to fully exchange heat to generate steam meeting the requirement.
7. The apparatus for supercritical water treatment and resource utilization of waste according to claim 6, wherein the resource utilization unit further comprises a water treatment apparatus comprising a pressure reducer, a three-phase separator and a deep water treatment apparatus sequentially connected to the steam generator; the pressure reducer is used for reducing the pressure of the supercritical mixed multi-element heat flow to liquid and conveying the liquid to the three-phase separator for solid-liquid separation; the advanced water treatment device is used for carrying out innocent treatment on the liquid generated by the three-phase separator.
8. The apparatus for supercritical water treatment and resource utilization of waste as claimed in claim 7, wherein the steam generator is further connected to the separation device for delivering a portion of the saturated steam to clean the recoverable inorganic waste.
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