CN113000557A - Brown gas pyrolysis hazardous solid waste treatment technology system and application method thereof - Google Patents
Brown gas pyrolysis hazardous solid waste treatment technology system and application method thereof Download PDFInfo
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Classifications
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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
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- 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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a brown gas pyrolysis hazardous solid waste disposal technical system, which comprises a front-end pretreatment system, a hydrogen energy pyrolysis gasifier system, an electric control system, a disposal product treatment system, a waste heat energy utilization system and an energy supply system, wherein the front-end pretreatment system comprises a front-end pretreatment system, a hydrogen energy pyrolysis gasifier system, a waste heat energy recovery system and a waste heat energy recovery system; front end pretreatment system, hydrogen energy pyrolysis gasifier system, processing product processing system and waste heat energy source utilize the system to connect gradually, electrical system connects front end pretreatment system, hydrogen energy pyrolysis gasifier system, processing product processing system, waste heat energy source utilize system and energy supply system, energy supply system connects hydrogen energy pyrolysis gasifier system, processing product processing system and waste heat energy source utilize the system. The brown gas pyrolysis hazardous solid waste treatment technical system and the application method provided by the invention can effectively improve the thermal efficiency utilization rate and the high-efficiency flexible treatment speed, and further realize the harmless and quantitative removal and resource utilization treatment of hazardous solid waste.
Description
Technical Field
The invention relates to the technical field of treatment of technical dangerous solid wastes, in particular to a brown gas pyrolysis dangerous solid waste treatment technical system and an application method thereof.
Background
With the economic development of China and the improvement of national productivity and living standard, a plurality of environmental problems ignored by people gradually appear, for example, waste pollution becomes another big problem of environmental pollution. Along with the rapid development of the social and economic model, the change of the variety quantity of the dangerous solid wastes is restricted by the bottleneck and energy of the corresponding technology to form a worldwide problem, so that a new technology which does not cause secondary pollution, can regenerate and recycle resources, is low in cost, safe and simple and convenient to operate is urgently needed, and becomes an industry consensus.
At present, various final wastes in life or industry are treated by mainly adopting technical methods such as burning, pyrolysis, landfill and chemistry in the current stage of China, wherein the pyrolysis technology is more friendly to environmental protection, the generated combustible gas is burned for 2 times in the burning environment at the temperature of more than 850 ℃, harmful substances such as VOC, dioxin and the like are obviously reduced compared with burning, and the emission indexes of nitrogen, sulfur, carbon, ash fly and free heavy metals accord with the national emission indexes after being treated again through chemical reaction and physical technologies.
However, in practice, the existing pyrolysis and vaporization technology mainly adopts petrochemical fuel energy or electric energy and adopts a heat conduction mode of flame-isolating heat radiation, so that the defects of energy source restriction, long time of a process heating and cracking curve, consumption of certain waiting and loading time, high treatment cost, low treatment efficiency, low daily treatment capacity as compared with the dequantization of an incineration technology and the like exist.
Therefore, it is required to provide a method for treating and applying brown gas pyrolysis hazardous solid disposal products to solve the above technical problems.
Disclosure of Invention
In order to solve the problems, the invention provides a brown gas pyrolysis hazardous solid waste disposal technical system, which solves the problems that the pyrolysis technology for hazardous solid waste disposal at present is mainly petrochemical fuel energy or electric energy, and has the defects of energy source constraint due to the heat conduction mode of flame isolation heat radiation, longer time of a process thermal cracking curve, consumption of certain waiting time for loading and unloading, high treatment cost, low treatment efficiency, unqualified daily treatment capacity compared with the dequantization of an incineration technology and the like, can effectively improve the heat value, the convection heat efficiency utilization rate and the efficient disposal speed, and further realizes the harmless and dequantization treatment of hazardous solid waste.
In order to achieve the purpose, the invention adopts the following technical scheme: a brown gas pyrolysis hazardous solid waste disposal technical system comprises a front-end pretreatment system, a hydrogen energy pyrolysis gasification furnace system, an electric control system, a disposal product treatment system, a waste heat energy utilization system and an energy supply system; front end pretreatment system, hydrogen energy pyrolysis gasifier system, processing product processing system and waste heat energy source utilize the system to connect gradually, electrical system connects front end pretreatment system, hydrogen energy pyrolysis gasifier system, processing product processing system, waste heat energy source utilize system and energy supply system, energy supply system connects hydrogen energy pyrolysis gasifier system, processing product processing system and waste heat energy source utilize the system.
Preferably, the front-end pretreatment system comprises a storage softening chamber device, a material sealing conveying belt, a material distributing hopper and an independent pusher; the discharge end of the storage softening chamber device is connected with the material sealing transmission belt, one end of the material sealing transmission belt is connected with the material distribution hopper, the discharge end of the material distribution hopper is connected with the independent pusher, and the independent pusher is connected with the hydrogen energy pyrolysis gasifier system.
Preferably, the hydrogen energy pyrolysis gasifier system comprises a centralized waste gas treatment device installation platform and at least one pyrolysis gasifier, and at least one pyrolysis gasifier is arranged around the centralized waste gas treatment device installation platform.
Preferably, the pyrolysis gasifier comprises a top cover module, at least one cracking furnace and a catalytic ash discharge device which are sequentially connected from top to bottom, the top of the top cover module is provided with a waste gas outlet, the side surface of the top cover module is provided with a feeding pipeline, the feeding pipeline is connected with the independent pusher, the cracking furnace forms a smoke discharge area and a cracking area through the outer wall and the inner wall, a plurality of flame channels are arranged between the outer wall and the inner part of the cracking furnace, the outer end of each flame channel is connected with a cracking gun, the cracking gun is connected with the energy supply system, and the inner wall of the cracking furnace at the topmost part is provided with a plurality of smoke discharge ports; the ash device is arranged to catalysis includes from last catalysis district and the ash discharge module that sets up extremely down, be provided with a plurality of brown air guns on the outer wall in catalysis district, brown air gun with energy supply system connects, ash discharge module bottom is provided with the sewage treatment pond.
Preferably, the treatment product treatment system comprises a sewage and wastewater treatment system and a waste gas treatment system, a liquid-gas separator is arranged between the sewage and wastewater treatment system and the waste gas treatment system, the liquid-gas separator is connected with the waste gas outlet through a pipeline, and the sewage and wastewater treatment system is connected with the waste gas treatment system.
Preferably, the sewage and wastewater treatment system further comprises an oil-water separator, an oil storage tank and a pyrolysis water device; the liquid-gas separator, the oil-water separator and the pyrolysis water device are sequentially connected, the oil storage tank is connected with the oil-water separator, and the pyrolysis water device is connected with the waste gas treatment system.
Preferably, the waste gas treatment system further comprises a temporary flue gas storage container, a reserve gas tank, a combustion chamber boiler for waste gas treatment and a tail gas washing and discharging device; wherein, liquid-gas separator the interim reservoir of flue gas reserve the gas pitcher the combustion chamber boiler with tail gas washing discharging equipment connects gradually, liquid-gas separator with be equipped with negative-pressure air fan between the interim reservoir of flue gas, the interim reservoir of flue gas with be equipped with the booster compressor between the reserve gas pitcher, the combustion chamber boiler is connected waste heat energy source utilizes the system, the interim reservoir of flue gas pyrolysis water installation with the sewage treatment pond is connected simultaneously tail gas washing discharging equipment, tail gas washing discharging equipment connects water vapour recovery device, liquid-gas separator, oil water separator, oil storage tank, the interim reservoir of flue gas and pyrolysis water installation set up in on the concentrated exhaust treatment device mounting platform.
Preferably, the energy supply system further comprises an auxiliary energy chamber and a brown gas equipped generator; the auxiliary energy chamber is connected with the hydrogen energy pyrolysis gasifier system, and the brown gas equipment generator is connected with the waste heat energy source utilization system, the combustion chamber boiler and the hydrogen energy pyrolysis gasifier system.
Preferably, the electric control system at least comprises a balance control system for respectively treating the material flow, the flow rate and the ash discharge output quantity, a control system for the balance relation between the smoke quantity and the negative pressure index in the furnace, a control system for the waste heat power generation quantity and the brown gas power consumption, a balance control system for the integral equipment energy transportation energy heat energy and the product and a safety control system.
A brown gas pyrolysis dangerous solid waste disposal technical system and an application method thereof comprise the following steps: (S1) carrying and unloading solid waste materials into the storage softening chamber device through a material conveying vehicle for corrosion softening, and then conveying the solid waste materials in the storage softening chamber device into the material distribution hopper through a material sealing conveying belt through a transmission motor and pushing the solid waste materials into a hydrogen energy pyrolysis gasifier system through the independent pusher;
(S2) feeding the solid waste material into a cracking furnace through a feeding pipeline, allowing the solid waste material to fall downwards through gravity, cracking the solid waste material by providing high temperature through a cracking gun in the falling process, cracking the solid waste material into ash, allowing the ash to fall into a catalytic zone, reacting by providing brown gas through a brown gas gun, and finally discharging and collecting the ash through an ash discharging module;
(S3) after the liquid-phase tar and the dirty waste gas are separated from the solid waste smoke in the liquid-gas separator, discharging the liquid-phase tar into the oil-water separator, and discharging the dirty waste gas into the smoke temporary storage container through the negative pressure fan;
(S4) separating tar and liquid from the liquid-phase tar in an oil-water separator, and then discharging the tar and the liquid into the oil storage tank and the pyrolysis water apparatus, respectively;
(S5) after the dirty exhaust gas in the flue gas temporary storage container is stored in the reserve tank by the supercharger, the reserve tank stably outputs the dirty exhaust gas to the combustion chamber boiler;
(S6) spraying water mist of the tail gas washing and discharging device on the sewage treatment tank, the pyrolysis water device, the flue gas temporary storage container and tail gas and water sources discharged in the combustion chamber boiler after reaching the standard;
(S7) the waste disposal technology system supplying electric power to the electric control system and the brown gas equipment generator using heat energy generated from the chamber boiler after mixed combustion of brown gas supplied from the chamber boiler through the brown gas equipment generator and the dirty exhaust gas.
The invention has the beneficial effects that:
1. the invention provides a brown gas pyrolysis hazardous solid treatment product treatment technical system and an application method thereof, which solve the problem that the conventional pyrolysis technology for hazardous solid waste treatment mainly adopts petrochemical fuel energy or electric energy;
2. according to the invention, a group of treatment product treatment systems are shared by a plurality of pyrolysis gasifiers, so that the problems that the current treatment of hazardous solid wastes is restricted by energy in a heat conduction mode of flame-proof heat radiation, the time of a process heated cracking curve is long, certain waiting time for loading and unloading is needed to be consumed, the treatment cost is high, the treatment efficiency is low, the daily treatment capacity is not as high as the quantification removal of an incineration technology and the like are solved, through the splicing structure of a plurality of cracking furnaces arranged in a modularized mode, the cracking furnaces with different numbers and heights can be arranged as required, the hazardous solid wastes can be rapidly heated and decomposed when being put into the pyrolysis gasifiers, and the treatment efficiency is greatly improved; and a plurality of pyrolysis gasifiers share a group of treatment product processing system, one or more pyrolysis gasifiers can be used to work according to requirements, and the condition that one pyrolysis gasifier is damaged to cause incapability of working is avoided.
Drawings
FIG. 1 is a first schematic structural diagram of a treatment of hazardous solid disposal products from Brown gas pyrolysis disclosed in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram II of treatment of hazardous solid treatment products by Brown gas pyrolysis disclosed in the embodiment of the invention;
shown in the figure: 1-a front-end pre-processing system; 11-storage softening chamber device; 12-sealing the material conveying belt; 13-a distributing hopper; 14-a separate pusher; 2-a hydrogen energy pyrolysis gasifier system; 21-a top cover module; 211-exhaust gas outlet; 212-a feed conduit; 22-a cracking furnace; 231-a catalytic zone; 232-ash discharging module; 24-a sewage tank; 3-a waste heat energy utilization system; 41-liquid-gas separator; 42-negative pressure fan; 43-oil water separator; 44-an oil storage tank; 45-temporary storage container for flue gas; 46-a supercharger; 47-a pyrolysis water unit; 48-reserve gas tank; 49-chamber boiler; 410-tail gas washing and discharging device; 5-an energy supply system; 51-auxiliary energy chamber; 52-Brown gas is equipped with a generator.
Detailed Description
As shown in fig. 1-2, a brown gas pyrolysis hazardous solid waste disposal technology system according to an embodiment of the present invention includes a front-end pretreatment system 1, a hydrogen energy pyrolysis gasifier system 2, an electric control system, a disposal product treatment system, a waste heat energy utilization system 3, and an energy supply system 5; front end pretreatment systems 1, hydrogen energy pyrolysis gasifier system 2, treatment product processing system and waste heat energy source utilize system 3 to connect gradually, electrical system connects front end pretreatment systems 1, hydrogen energy pyrolysis gasifier system 2, treatment product processing system, waste heat energy source utilize system 3 and energy supply system 5, energy supply system 5 connects hydrogen energy pyrolysis gasifier system 2, treatment product processing system and waste heat energy source utilize system 3.
The front-end pretreatment system 1 comprises a storage softening chamber device 11, a material sealing conveying belt 12, a material distributing hopper 13 and an independent pusher 14; the hazardous solid waste is carried and unloaded into the storage softening chamber device 11 through a material carrying vehicle, a septic additive is added into the storage softening chamber device 11 to carry out septic treatment on the hazardous solid waste, the septic solid waste after the septic treatment is conveyed into the material distributing hopper 13 through the material sealing conveying belt 12, and the hazardous solid waste is pushed into the hydrogen energy pyrolysis gasifier system 2 through the independent pusher 14 connected with the discharge port at the bottom of the material distributing hopper 13 to be subjected to next operation.
Wherein, hydrogen energy pyrolysis gasifier system 2 includes concentrated exhaust treatment device mounting platform and at least one pyrolysis gasifier, at least one the pyrolysis gasifier set up in concentrate around the exhaust treatment device mounting platform.
In this embodiment, concentrate exhaust-gas treatment device mounting platform and be used for installing exhaust-gas treatment device, concentrate exhaust-gas treatment device platform and install one or more pyrolysis gasifier all around, one or more pyrolysis gasifier passes through the pipeline and is connected with exhaust-gas treatment device, one or more pyrolysis gasifier sharing one set of treatment product processing system, can not influence whole system work when a damage, and can work simultaneously according to a plurality of pyrolysis gasifiers of demand, the user can install one or more pyrolysis gasifiers according to place and demand.
Further, the pyrolysis gasifier comprises a top cover module 21, at least one cracking furnace 22 and a catalytic ash discharge device which are sequentially connected from top to bottom, a waste gas outlet 211 is formed in the top of the top cover module 21, a feeding pipeline 212 is arranged on the side face of the top cover module 21, the feeding pipeline 212 is connected with the independent pusher 14, the cracking furnace 22 forms a smoke exhaust area and a cracking area through the outer wall and the inner wall, a plurality of flame channels are arranged between the outer wall and the inner part of the cracking furnace 22, cracking guns are connected to the outer ends of the flame channels and are connected with the energy supply system 5, and a plurality of smoke exhaust ports are formed in the inner wall of the cracking furnace 22 at the topmost; the ash device is arranged to catalysis includes from last catalytic zone 231 and the ash module 232 of arranging to setting up down, be provided with a plurality of brown air guns on the outer wall of catalytic zone 231, brown air gun with energy supply system 5 is connected, ash module 232 bottom of arranging is provided with the sewage treatment pond.
In this embodiment, the pyrolysis gasifier comprises a top cover module 21, at least one cracking furnace 22 and a catalytic ash discharging device which are connected in sequence from top to bottom, wherein a plurality of cracking furnaces 22 are provided, a plurality of cracking furnaces 22 are arranged in a modular manner, and a user can set one or more cracking furnaces 22 according to the site height and the requirement; the inside of the pyrolysis gasifier is hollow, a waste gas outlet 211 is formed in the top end of the top cover module 21, the waste gas outlet 211 is connected with a disposal product treatment system through a pipeline, a feeding pipeline 212 is connected to the side face of the top cover, an outer opening of the feeding pipeline 212 is connected with the independent pusher 14, hazardous solid wastes are pushed to the feeding pipeline 212 through the independent pusher 14, sent to the top cover module 21 through the feeding pipeline 212, then fall through the gravity of the hazardous solid wastes and the pressure of the hazardous solid wastes above, undergo high-temperature cracking in a cracking zone inside the cracking furnace 22 in the falling process, finally fall to a catalytic ash discharging device at the bottom, and after catalysis, the remaining ash is discharged; the sewage treatment pool arranged at the bottom of the ash discharge module 232 stores cooling water for cooling ash, and the cooling water is discharged into a secondary sewage treatment pool to be converged, and can be ultrafiltered to meet the purified water standard, so that the cooling water can be finally used as circulating cooling water and water sources with other standard purposes or be discharged.
Wherein, pyrolysis furnace 22 forms smoke exhaust area and pyrolysis zone through outer wall and inner wall, and pyrolysis furnace 22's outer wall and inner wall are made through resistant firebrick and trapezoidal insulating brick material, be provided with the flame path of a plurality of crisscross settings between pyrolysis furnace 22 outer wall and the inner wall, flame path's outer end exit linkage has the schizolysis rifle, and wherein the schizolysis rifle is connected with energy supply system 5, and energy supply system 5 provides mixed combustible gas for the schizolysis rifle, and the pyrolysis rifle erupts high temperature flame through combustible gas, and high temperature flame is located flame path, produces high temperature in flame path, and high temperature gets into the pyrolysis zone through flame path, and the pyrolysis is received to the danger solid waste when the pyrolysis zone passes through the pyrolysis zone, drops to the catalysis ash discharging device of bottom at last. In this embodiment, the number of the cracking furnaces 22 is 4, the cracking zones in the 4 cracking furnaces 22 are sequentially divided into a flue gas waste heat preheating zone, an auxiliary fuel drying zone, an auxiliary fuel medium-temperature zone and an auxiliary fuel high-temperature zone from top to bottom, a large amount of flue gas is generated in the cracking furnace 22 during the cracking process, the high-temperature flue gas rises upwards, and the moisture of the hazardous solid waste is taken away during the rising process, so that the internal temperature of the cracking furnace 22 is layered; the hazardous solid waste is dried and preheated from water in the continuous heat absorption process according to the temperature stratification in the cracking furnace 22, the cracking heat absorption process continuously reaches the cracking temperature required by the material, and the related blanking speed of a powerful material pusher, the ash discharging speed of an ash cooling layer, the negative pressure state in the furnace and the variable frequency flow rate of a smoke fan of a high temperature resistant negative pressure fan 42 device are adjusted according to the temperature setting of the area; the workpieces are all quantitative, and the embodiment is not limited at all; the flue gas in the cracking furnace 22 enters the smoke exhaust area of the cracking furnace 22 through the gaps in the cracking furnace 22, and is exhausted from the smoke exhaust port of the topmost cracking furnace 22 when rising to the top through the smoke exhaust area, and then is exhausted through the waste gas outlet 211 of the top cover module 21.
Wherein, the ash device is arranged in catalysis includes from last catalytic zone 231 and the ash discharging module 232 that sets up down, be provided with a plurality of brown gas guns on the outer wall of catalytic zone 231, brown gas guns with energy supply system 5 is connected, energy supply system 5 provides brown gas for brown gas guns, and brown gas guns jets into catalytic zone 231 in with brown gas, makes the solid waste thing lime-ash of danger through the schizolysis carry out chemical reaction with brown gas, discharges the lime-ash through ash discharging module 232 at last, and the processing is packed to the lime-ash of discharge, and the lime-ash through handling can be used as fertilizer or building raw materials.
Preferably, in the present embodiment, brown gas is used to provide the catalytic zone 231 with combustion energy in the pyrolysis atmosphere under the pyrolysis condition, the new combustion energy is hydrogen-oxygen mixed gas with optimal combustion ratio according to the molar quantity of water, and vacuum suitable combustion is performed without any additive, so that the pyrolysis condition is not affected by the combustion energy and nitrogen and oxygen are increased; meanwhile, for mixed combustion of waste gas and brown gas, the method not only can efficiently inhibit the generation of dioxin, but also can inhibit the generation of dioxin under two conditions of one factor of oxygen deficiency, time and temperature, and brown gas can increase two inhibiting factors of catalytic action and alkalinity under the condition of hydrogen passing combustion, and besides the control of heavy metal reduction and VOC catalytic reaction; the existing flue gas treatment technical device is also saved, and high-efficiency value is obtained from multiple cost aspects; and brown gas is generated from water as a resource cut-off body through a novel high-efficiency electrolysis technology; the gas has novel fuel energy of optimum combustion proportion mixed by various forms such as hydrogen, oxygen active ions, molecules, atoms, conductive substance alkaline ions and the like, belongs to polymerization type fuel energy, is novel fuel energy of a special catalytic reaction type of hydrogen passing typical complex chain reaction, and is substantially different from pure hydrogen fuel energy and current fission fuel energy; and, because the combination of the carbon active ions and the active oxygen ions is higher than that of the hydrogen ions, when the two kinds of combustion energy are under the same working condition, the carbon monoxide ions can more quickly obtain oxygen ions to combust and generate carbon dioxide, the working condition combustion is more sufficient, the utilization rate of released heat is improved, and the catalytic action is realized; hydrogen ions which are insufficient for oxygen ions are independent and form 'hydrogen passing typical complex chain reaction' for combustion, new heat utilization of hydrogen continuously released in the combustion chain reaction is increased, the heat energy cost is reduced, meanwhile, the hydrogen ions are continuously reduced with VOC and heavy metal existing in the working condition under the combustion working condition, and the hydrogen strengthens inhibition on dioxin under the photolysis and alkaline conductive substance ion conditions.
Because the material cracking process needs endothermic heat and time, the single furnace body treatment capacity of the embodiment is determined by the stacking height of the modules, so that the material enters the cracking main body under the action of the pusher, the generated gravity is used as the bearing strength of the cracking degree of the material which is completed up and down in the furnace body and is generated to settle downwards through the interlayer spacing, the material is dried, pre-cracked and high-temperature completely cracked, the cracking residue enters the Brown gas catalytic zone 231, the feature of Brown gas burning under oxygen deficiency or vacuum catalyzes and reduces the free state of heavy metal and CO in ash flying, and S (the free state of Brown gas conductive substance sodium hydroxide reacts with sulfur strongly at high temperature, so that part of hydrogen ions are in the chain reaction reduction heavy metal free state and VOC reaction.
And, because of the restriction of flameless pyrolysis, make the pyrolysis volume of single furnace body diameter limited, the design that this embodiment uses the circle as the center, adopts the parallelly connected design of many stoves, solves the relation of system and daily handling capacity, can independent or synchronous operation, accords with the operation demand of material inadequacy in the operation process, maintenance isotonization nature.
The treatment product treatment system comprises a sewage and wastewater treatment system and a waste gas treatment system, a liquid-gas separator 41 is arranged between the sewage and wastewater treatment system and the waste gas treatment system, the liquid-gas separator 41 is connected with the waste gas outlet 211 through a pipeline, and the sewage and wastewater treatment system is connected with the waste gas treatment system.
In this embodiment, a large amount of waste gas is generated during the operation of the pyrolysis gasifier, and moisture on the hazardous solid waste is taken away by the high-temperature waste gas during the discharging process, the waste gas enters the liquid-gas separator 41 through the pipeline, the waste gas and the liquid are separated by the liquid-gas separator 41, wherein the waste gas is discharged through the upper part of the liquid-gas separator 41 and enters the waste gas treatment system, and the waste liquid is discharged through the bottom of the liquid-gas separator 41 and enters the sewage and wastewater treatment system.
Further, the sewage and wastewater treatment system further comprises an oil-water separator 43, an oil storage tank 44 and a pyrolysis water device 47; the liquid-gas separator 41, the oil-water separator 43 and the pyrolysis water device 47 are sequentially connected, the oil storage tank 44 is connected with the oil-water separator 43, and the pyrolysis water device 47 is connected with the waste gas treatment system.
In this embodiment, the waste liquid is separated by the oil-water separator 43, after oil-water separation, the waste water enters the pyrolysis water device 47 through a pipeline, tar is separated enough to enter the oil storage tank 44, the oil storage tank 44 is connected with a tar storage and connected with a tar atomizer, and the tar atomizer is connected with a cracking gun and used as one of the combustible gases mixed by the cracking gun; the wastewater enters the pyrolysis water device 47 and is pyrolyzed to form steam, and the steam enters the waste gas treatment system for further treatment.
Further, the waste gas treatment system further comprises a temporary flue gas storage container 45, a reserve gas tank 48, a chamber boiler 49 for waste gas treatment and a tail gas water washing discharge device 410; wherein, liquid-gas separator 41 the interim storage container 45 of flue gas reserve gas pitcher 48 the combustion chamber boiler 49 with tail gas washing discharging equipment 410 connects gradually, liquid-gas separator 41 with be equipped with negative-pressure air fan 42 between the interim storage container 45 of flue gas, the interim storage container 45 of flue gas with be equipped with booster compressor 46 between the reserve gas pitcher 48, combustion chamber boiler 49 is connected waste heat energy source utilizes system 3, the interim storage container 45 of flue gas pyrolysis water installation 47 with the sewage treatment pond is connected simultaneously tail gas washing discharging equipment 410, tail gas washing discharging equipment 410 connects the vapor recovery ware, liquid-gas separator 41, oil water separator 43, oil storage tank 44, the interim storage container 45 of flue gas and pyrolysis water installation 47 set up in on the concentrated exhaust treatment device mounting platform.
In the embodiment, after the exhaust gas enters the liquid-gas separator 41, the gas phase is extracted by the negative pressure fan 42 and enters the temporary flue gas storage container 45, the exhaust gas in the temporary flue gas storage container 45 is extracted by the action of the supercharger 46 and enters the storage gas tank 48, the exhaust gas enters the combustion chamber boiler 49 through the storage gas tank 48, the exhaust gas is ignited by the combustion chamber boiler 49 to generate high temperature, and the waste heat energy source utilizes the heat energy generated by the combustion chamber boiler 49 to generate electricity by the system 3, so as to be supplied to the whole system for use; tail gas generated by the combustion chamber boiler 49 enters a tail gas washing and discharging device 410, the tail gas washing and discharging device 410 is connected with a water vapor recoverer, and after being cooled and recovered, the tail gas is connected with a Brown gas equipment generator 52 serving as an electrolyzed distilled water storage; the wastewater is harmless and then is connected with a sewage tank 24, the sewage tank 24 is connected with a sewage ultrafilter, the ultrafilter is connected with a cooling water tower, the cooling water tower is connected with a liquid-gas separator 41, the cooling water tower is connected with a cooling circulator of a Brown gas electrolysis device, and the cooling water tower is connected with a waste gas storage.
Preferably, after the waste gas is collected and dried, under the reaction mechanism generated by brown gas mixed combustion, the waste gas with a small amount of inorganic fly ash is subjected to water spraying cleaning, so that the discharge of Q/LNYF-2-2019 is directly achieved, and the current critical point index and multi-link control means are solved.
Preferably, the slag enters a Brown gas catalytic working condition after the cracking of substances, the Brown gas combustion hydrogen catalysis characteristic can effectively inhibit the heavy metal free reduction and dioxin of the slag, and the heavy metal free reduction and dioxin directly reach the standard of Q/LNYF < - > or the standard of ' common solid waste GB/T ' Green building materials evaluation Standard ', so that the technical bottleneck that the current slag needs to be treated and solidified again and a multi-link control means are solved.
Preferably, waste water is except two kinds of domestic waste water of waste water through distinguishing into leading waste water rubbish stoste and the waste water that separates out through the pyrolysis, and leading waste water gets into tar burning after the organic matter filters and deals with the structure heat transfer, makes waste water reach the boiling point after the cooling and the waste water that the pyrolysis separated out join, purifies harmless waste water through ultrafiltration apparatus, as the application of factory interior and cooling arrangement water resource.
Preferably, the waste gas mainly from the storage chamber contains a certain amount of methane, hydrogen sulfide and other peculiar smells, and the waste gas is introduced by a suction fan or the combustion chamber boiler 49 is used as combustion-supporting air.
Preferably, after the flue gas is cooled, the liquid-gas separation independent pipeline circulates, a small amount of liquid substances exist in the gas state due to the relation of time and temperature, the liquid substances enter a gas storage tank of the combustible gas storage device through a high-temperature resistant negative pressure fan 42 device and a booster pump device, part of liquid-phase substances of the flue gas in the combustible gas storage device return to the original part and are stored at the bottom of the combustible gas storage device due to gravity when the combustible gas in the combustible gas storage device is subjected to the stability of temperature and pressure in the storage process, the liquid phase is discharged out of another tank through an electronic pressure execution valve after the set limit is reached until the liquid-phase capacity in the tank is reduced to the set limit and then is closed, the liquid phase mainly comprising water and tar is introduced into an oil-water separator 43 device after the pressure of the tank is reduced, and the water and.
Preferably, the embodiment adopts a vertical pyrolysis furnace structure, the heated area is a coking layer, the inorganic residue is directly discharged into the bay inclined water seal channel through the ash discharge device after the carbonization layer and the inorganic layer are separated, and the ash is discharged out of the furnace under the guiding action of water flow.
Preferably, the whole process of the embodiment is based on the principle that the flow is conveyed in a sealing way, the product residues, water, tar and combustible gas meet the relevant national standard emission standard and are utilized, secondary pollution or peculiar smell to the outside does not exist, the operation site is clean and orderly, and the national relevant regulation and regulation mechanism is met.
Further, the energy supply system 5 further includes an auxiliary energy chamber 51 and a brown gas accessory generator 52; the auxiliary energy chamber 51 is connected with the hydrogen energy pyrolysis gasifier system 2, and the brown gas equipment generator 52 is connected with the waste heat energy utilization system 3, the combustion chamber boiler 49 and the hydrogen energy pyrolysis gasifier system 2.
Further, the electric control system at least comprises a balance control system for respectively treating the material flow, the flow rate and the ash discharge output quantity, a control system for the balance relation between the smoke quantity and the negative pressure index in the furnace, a control system for the waste heat power generation quantity and the brown gas power consumption, a balance control system for the integral equipment energy transportation heat energy and the product and a safety control system.
It can be seen that, implement above-mentioned brown gas pyrolysis danger solid treatment product processing and application method described, the pyrolysis technology who has solved and is used for danger solid waste to handle at present mainly adopts petrochemical industry fuel energy or electric energy to exist and be restricted by the energy with the heat conduction mode of flame-proof thermal radiation, the process is heated the schizolysis curve and is long-lived, need consume certain waiting for dress unloading time, the treatment cost is high, the treatment effeciency is low, the daily handling capacity is not like the problem of shortcoming such as the dequantization of burning technique, can effectual promotion calorific value, to heat efficiency utilization ratio and high-efficient processing speed, and then realize the innoxiousness and the dequantization of danger solid waste and handle.
In addition, the brown gas pyrolysis hazardous solid treatment product treatment and application method is implemented, brown gas is adopted to crack hazardous waste, and the concept and pyrolysis mode of the pyrolysis process of the pyrolysis equipment system are changed from the breakthrough of energy constraint; the heat utilization efficiency, the material circulation mode and the chemical removal amount problem are efficiently improved, and the concept of pyrolysis gas treatment is directly reflected by the economic value meanings such as equipment cost, occupied area, unit cost and the like; and the social value is reflected in the environmental protection significance of the safety hazard source due to equipment removal, emission safety index and the like.
The invention provides a brown gas pyrolysis hazardous solid waste treatment technical system and an application method thereof, wherein the brown gas pyrolysis hazardous solid waste treatment technical system comprises the following steps: the method comprises the following steps:
(S1) carrying and unloading solid waste materials into the storage softening chamber device 11 through a material conveying vehicle for corrosion softening, and then conveying the solid waste materials in the storage softening chamber device 11 into the material distributing hopper 13 through the material sealing conveying belt 12 through a transmission motor and pushing the solid waste materials into the hydrogen energy pyrolysis gasifier system 2 through the independent pusher 14;
(S2), the solid waste material enters the cracking furnace 22 through the feeding pipeline 212 and falls downwards through gravity, high temperature is provided by a cracking gun to crack the solid waste material in the falling process, the solid waste material is cracked into ash and falls into a catalytic area 231, brown gas is provided by a brown gas gun to react, and finally the ash is discharged and collected through the ash discharging module 232;
(S3) after the liquid-phase tar and the dirty waste gas are separated from the solid waste smoke in the liquid-gas separator 41, discharging the liquid-phase tar into the oil-water separator 43, and discharging the dirty waste gas into the smoke temporary storage container through the negative pressure fan 42;
(S4) separating tar and liquid from the liquid-phase tar in the oil-water separator 43, and then discharging the tar and the liquid into the oil storage tank 44 and the pyrolysis water apparatus 47, respectively;
(S5) after the dirty exhaust gas in the flue gas temporary storage container is stored in the reserve gas tank 48 by the supercharger 46, the reserve gas tank 48 stably outputs the dirty exhaust gas to the chamber boiler 49;
(S6) spraying the water mist of the tail gas washing and discharging device 410 on the sewage treatment tank, the pyrolysis water device 47, the flue gas temporary storage container and the tail gas and water source discharged within the combustion chamber boiler 49 after reaching the standard;
(S7), the waste disposal technology system supplies the electric control system and the brown gas equipment generator 52 with electric power using the heat energy generated by the chamber boiler 49 after the mixed combustion of the brown gas supplied from the chamber boiler 49 through the brown gas equipment generator 52 and the dirty exhaust gas.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a brown gas pyrolysis danger solid waste handles technical system which characterized in that: the system comprises a front-end pretreatment system, a hydrogen energy pyrolysis gasifier system, an electric control system, a disposal product treatment system, a waste heat energy utilization system and an energy supply system; front end pretreatment system, hydrogen energy pyrolysis gasifier system, processing product processing system and waste heat energy source utilize the system to connect gradually, electrical system connects front end pretreatment system, hydrogen energy pyrolysis gasifier system, processing product processing system, waste heat energy source utilize system and energy supply system, energy supply system connects hydrogen energy pyrolysis gasifier system, processing product processing system and waste heat energy source utilize the system.
2. The brown gas pyrolysis hazardous solid waste disposal technology system of claim 1, characterized in that: the front-end pretreatment system comprises a storage softening chamber device, a material sealing conveying belt, a material distributing hopper and an independent pusher; the discharge end of the storage softening chamber device is connected with the material sealing transmission belt, one end of the material sealing transmission belt is connected with the material distribution hopper, the discharge end of the material distribution hopper is connected with the independent pusher, and the independent pusher is connected with the hydrogen energy pyrolysis gasifier system.
3. The brown gas pyrolysis hazardous solid waste disposal technology system of claim 1, characterized in that: the hydrogen energy pyrolysis gasifier system comprises a concentrated waste gas treatment device installation platform and at least one pyrolysis gasifier, wherein the at least one pyrolysis gasifier is arranged around the concentrated waste gas treatment device installation platform.
4. The brown gas pyrolysis hazardous solid waste disposal technology system of claim 3, characterized in that: the pyrolysis gasifier comprises a top cover module, at least one cracking furnace and a catalytic ash discharging device which are sequentially connected from top to bottom, wherein a waste gas outlet is formed in the top of the top cover module, a feeding pipeline is arranged on the side surface of the top cover module and connected with the independent pusher, the cracking furnace forms a smoke discharging area and a cracking area through the outer wall and the inner wall, a plurality of flame channels are arranged between the outer wall and the inner part of the cracking furnace, the outer end of each flame channel is connected with a cracking gun, the cracking gun is connected with the energy supply system, and a plurality of smoke discharging ports are formed in the inner wall of the cracking furnace at the topmost part; the ash device is arranged to catalysis includes from last catalysis district and the ash discharge module that sets up extremely down, be provided with a plurality of brown air guns on the outer wall in catalysis district, brown air gun with energy supply system connects, ash discharge module bottom is provided with the sewage treatment pond.
5. The brown gas pyrolysis hazardous solid waste disposal technology system of claim 4, characterized in that: the treatment product treatment system comprises a sewage and wastewater treatment system and a waste gas treatment system, wherein a liquid-gas separator is arranged between the sewage and wastewater treatment system and the waste gas treatment system, the liquid-gas separator is connected with the waste gas outlet through a pipeline, and the sewage and wastewater treatment system is connected with the waste gas treatment system.
6. The brown gas pyrolysis hazardous solid waste disposal technology system of claim 5, characterized in that: the sewage and wastewater treatment system further comprises an oil-water separator, an oil storage tank and a pyrolysis water device; the liquid-gas separator, the oil-water separator and the pyrolysis water device are sequentially connected, the oil storage tank is connected with the oil-water separator, and the pyrolysis water device is connected with the waste gas treatment system.
7. The brown gas pyrolysis hazardous solid waste disposal technology system of claim 6, characterized in that: the waste gas treatment system further comprises a temporary flue gas storage container, a storage gas tank, a combustion chamber boiler for waste gas treatment and a tail gas washing and discharging device; wherein, liquid-gas separator the interim reservoir of flue gas reserve the gas pitcher the combustion chamber boiler with tail gas washing discharging equipment connects gradually, liquid-gas separator with be equipped with negative-pressure air fan between the interim reservoir of flue gas, the interim reservoir of flue gas with be equipped with the booster compressor between the reserve gas pitcher, the combustion chamber boiler is connected waste heat energy source utilizes the system, the interim reservoir of flue gas pyrolysis water installation with the sewage treatment pond is connected simultaneously tail gas washing discharging equipment, tail gas washing discharging equipment connects water vapour recovery device, liquid-gas separator, oil water separator, oil storage tank, the interim reservoir of flue gas and pyrolysis water installation set up in on the concentrated exhaust treatment device mounting platform.
8. The brown gas pyrolysis hazardous solid waste disposal technology system of claim 7, characterized in that: the energy supply system further comprises an auxiliary energy chamber and a brown gas plant generator; the auxiliary energy chamber is connected with the hydrogen energy pyrolysis gasifier system, and the brown gas equipment generator is connected with the waste heat energy source utilization system, the combustion chamber boiler and the hydrogen energy pyrolysis gasifier system.
9. The brown gas pyrolysis hazardous solid waste disposal technology system of claim 8, characterized in that: the electric control system at least comprises a balance control system for respectively treating material flow, flow rate and ash discharge output, a flue gas amount and furnace negative pressure index balance relation control system, a waste heat generating capacity and brown gas power consumption control system, an integral equipment energy transportation heat energy and product balance control system and a safety control system.
10. An application method of the brown gas pyrolysis hazardous solid waste disposal technology system as claimed in claims 1-9, is characterized in that: comprises the following steps of (a) carrying out,
(S1) carrying and unloading solid waste materials into the storage softening chamber device through a material conveying vehicle for corrosion softening, and then conveying the solid waste materials in the storage softening chamber device into the material distribution hopper through a material sealing conveying belt through a transmission motor and pushing the solid waste materials into a hydrogen energy pyrolysis gasifier system through the independent pusher;
(S2) feeding the solid waste material into a cracking furnace through a feeding pipeline, allowing the solid waste material to fall downwards through gravity, cracking the solid waste material by providing high temperature through a cracking gun in the falling process, cracking the solid waste material into ash, allowing the ash to fall into a catalytic zone, reacting by providing brown gas through a brown gas gun, and finally discharging and collecting the ash through an ash discharging module;
(S3) after the liquid-phase tar and the dirty waste gas are separated from the solid waste smoke in the liquid-gas separator, discharging the liquid-phase tar into the oil-water separator, and discharging the dirty waste gas into the smoke temporary storage container through the negative pressure fan;
(S4) separating tar and liquid from the liquid-phase tar in an oil-water separator, and then discharging the tar and the liquid into the oil storage tank and the pyrolysis water apparatus, respectively;
(S5) after the dirty exhaust gas in the flue gas temporary storage container is stored in the reserve tank by the supercharger, the reserve tank stably outputs the dirty exhaust gas to the combustion chamber boiler;
(S6) spraying water mist of the tail gas washing and discharging device on the sewage treatment tank, the pyrolysis water device, the flue gas temporary storage container and tail gas and water sources discharged in the combustion chamber boiler after reaching the standard;
(S7) the waste disposal technology system supplying electric power to the electric control system and the brown gas equipment generator using heat energy generated from the chamber boiler after mixed combustion of brown gas supplied from the chamber boiler through the brown gas equipment generator and the dirty exhaust gas.
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