WO2023283811A1 - Strong coupling synergistic treatment method for waste in urban vein industrial park - Google Patents

Strong coupling synergistic treatment method for waste in urban vein industrial park Download PDF

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Publication number
WO2023283811A1
WO2023283811A1 PCT/CN2021/106136 CN2021106136W WO2023283811A1 WO 2023283811 A1 WO2023283811 A1 WO 2023283811A1 CN 2021106136 W CN2021106136 W CN 2021106136W WO 2023283811 A1 WO2023283811 A1 WO 2023283811A1
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Prior art keywords
waste
treatment
biogas
steam
primary air
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PCT/CN2021/106136
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French (fr)
Chinese (zh)
Inventor
彭晓为
李倬舸
钟日钢
刘红
吴浩
Original Assignee
深圳市深能环保东部有限公司
深圳市能源环保有限公司
深圳市深能环保城市环境服务有限公司
桂林市深能环保有限公司
单县深能环保有限公司
武汉深能环保新沟垃圾发电有限公司
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Publication of WO2023283811A1 publication Critical patent/WO2023283811A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B2017/0424—Specific disintegrating techniques; devices therefor
    • B29B2017/0496—Pyrolysing the materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the invention relates to the field of urban solid waste treatment, in particular to a method for strongly coupled collaborative treatment of waste in urban venous industrial parks.
  • Chinese invention patent CN107008733B discloses the urban venous industrial park and its construction method as well as the solid waste treatment system and method, and proposes that municipal solid waste is divided into old household appliances, construction waste, household waste, restaurant waste, sludge and feces through the domestic waste diversion system and Other biomass waste; household waste is divided into dry waste and wet waste through dry and wet separation devices; old household appliances, construction waste and dry waste are processed through fossil waste treatment systems to form glass, plastic, metal, waste-derived fuels and recycled materials At the same time, the fossil waste treatment system is connected to the power generation system and the heating system respectively; wet waste, restaurant waste, sludge, feces and other biomass waste are processed by the biomass waste treatment system to form recycled water, biocarbon soil, methane gas and carbon dioxide .
  • the invention realizes the closed-loop mode of "resources-products-renewable resources", turning waste into treasure and recycling.
  • this patent simply aggregates and combines different types of waste and different treatment processes, and does not construct a strongly coupled collaborative processing relationship between different wastes and processes, and does not form an efficient recycling of materials and energy.
  • Chinese Patent Publication No. CN111750357A discloses a venous industrial park system centered on a waste incineration power plant to realize the collaborative disposal of municipal sludge, kitchen waste, medical waste, animal carcasses and/or fecal solid waste.
  • this patent application strengthens the material and energy recycling between different solid waste treatments, it does not achieve the optimal collaborative processing relationship and achieve the best utilization efficiency.
  • the patent proposes that the biogas produced by the anaerobic fermentation of kitchen waste should be sent directly to the waste incinerator for incineration.
  • the present invention provides a strong coupling collaborative processing method for urban venous industrial park waste , network-integrate various solid wastes and treatment processes such as domestic waste, kitchen waste, municipal sludge, and waste tires in the park, optimize the coupling and matching of different treatment technologies in the park and the efficient synergy of intermediate products, and realize the material waste in the park. and efficient recycling of energy, improving the overall overall energy efficiency and low-carbonization level of the system.
  • the solution adopted by the present invention to solve the technical problem a method for strongly coupled collaborative treatment of urban venous industrial park waste, including municipal sludge treatment, domestic garbage treatment, waste tire treatment, kitchen waste treatment and sewage comprehensive treatment;
  • the waste tire treatment adopts "pre-crushing + catalytic pyrolysis + coke activation" (catalytic pyrolysis) process;
  • the municipal sludge produced by the domestic sewage plant, the sludge produced by the comprehensive sewage treatment, and the biogas residue produced after the treatment of kitchen waste are dehydrated and dried, and finally enter the domestic waste incineration;
  • the sewage generated by the domestic waste treatment, kitchen waste treatment and municipal sludge treatment is collected and then comprehensively treated to meet the reuse standard of reclaimed water;
  • biogas direct combustion preheating of the primary air produced by the comprehensive sewage treatment and the steam preheating of the primary air are flexibly used to heat the primary air required for domestic waste incineration;
  • the coke obtained by catalytic pyrolysis of waste tires is further activated to obtain Activated carbon is used as an adsorbent for flue gas treatment of domestic waste incineration to remove dioxins and heavy metals in the flue gas;
  • biogas/combustible gas generated from food waste treatment and catalytic pyrolysis of waste tires, and high temperature from domestic waste incineration Steam is used to produce hydrogen through biogas reforming to produce hydrogen, which is supplied to hydrogen energy garbage trucks.
  • the domestic waste incineration adopts a mechanical grate incinerator, which is equipped with a condensing steam extraction steam turbine generator set and a flue gas treatment system; the electric energy generated by it is not only used for internal use in the park, but the remaining electric energy is connected to the grid and sent out; At the same time, according to the heat demand of other processing units in the park, steam is extracted from the steam extraction port of the steam turbine to provide heat energy.
  • the above-mentioned food waste treatment adopts the process of "pretreatment pulping oil extraction + whole material wet anaerobic fermentation"; the heat energy required for anaerobic fermentation of food waste and oil extraction comes from the steam of domestic waste incineration, and the power consumption
  • the electricity generated from the incineration of domestic waste the biogas residue generated from the treatment of food waste is incinerated in the waste incinerator; the biogas generated from the treatment of food waste is used for biogas reforming to produce hydrogen.
  • the dehydration and drying of the biogas residue/sludge adopts the process of "plate and frame filter press dehydration + steam indirect drying"; After pressure filtration and dehydration, it is mixed with municipal sludge, and steam indirect drying is carried out together; the dried biogas residue and sludge enter the waste incinerator for co-incineration; the heat and electricity required for the dehydration and drying of biogas residue/sludge are provided by Domestic waste incineration unit provided.
  • the combustible gas produced by catalytic pyrolysis of waste tires is used for the equipment’s own use, and the rest is used for biogas reforming to produce hydrogen; the generated activated carbon is used as an adsorbent for flue gas treatment of domestic waste incineration; waste tires are used for catalytic pyrolysis
  • the required electrical energy comes from the MSW incineration unit.
  • the comprehensive treatment of sewage realizes centralized purification and disposal of sewage generated during the disposal process of solid waste such as domestic garbage, kitchen waste, biogas residue/sludge, and waste tires, and the biogas generated during the disposal process enters the primary wind biogas
  • the direct-fired preheater burns, and the reclaimed water obtained from the comprehensive sewage treatment meets the reuse water standard and is reused in the park.
  • the preheating of the primary air biogas direct combustion is arranged at the rear end of the primary air steam preheating of the domestic waste incineration unit; under normal circumstances, the primary air biogas direct combustion preheating is enabled, the primary air steam preheating is disabled, and the sewage comprehensive
  • the biogas produced by the treatment is directly burned in the primary air biogas direct combustion preheater to heat the primary air required for domestic waste incineration; in case of special circumstances such as insufficient biogas, the primary air biogas direct combustion preheating is disabled, and the primary air biogas direct combustion preheater is disabled.
  • Air steam preheating is enabled, and the primary air is heated by high-temperature steam generated by domestic waste incineration.
  • the primary air biogas direct combustion preheating and primary air steam preheating can be put into operation at the same time to obtain a higher primary air temperature.
  • biogas reforming hydrogen production includes the reforming of methane gas in biogas/combustible gas produced by food waste treatment and catalytic pyrolysis of waste tires to produce hydrogen, and the hydrogen is supplied to hydrogen energy garbage transport vehicles.
  • the steam reforming method is used for hydrogen production by biogas reforming, and the required high-temperature steam is provided by the domestic waste incineration unit.
  • the present invention proposes a method for strongly coupled and coordinated treatment of waste in urban venous industrial parks, taking the urban solid waste treatment system as an organic whole, and according to domestic waste, kitchen waste Based on the physical and chemical characteristics of different solid wastes such as municipal sludge and waste tires, as well as the process characteristics of combustion, anaerobic fermentation and pyrolysis, a synergistic coupling method for efficient circulation and cascade utilization of energy, intermediate products and reclaimed water is established to realize energy and waste.
  • Fig. 1 is a schematic process flow diagram of an embodiment of the present invention.
  • Fig. 1 is a schematic process flow diagram of an embodiment of the present invention.
  • the figure shows, in this example, a strongly coupled collaborative treatment method for urban venous industrial park waste, including municipal sludge treatment, domestic waste treatment, waste tire treatment, kitchen waste treatment and comprehensive sewage treatment;
  • the waste tire treatment adopts "pre-crushing + catalytic pyrolysis + coke activation" (catalytic pyrolysis) process;
  • the municipal sludge produced by the domestic sewage plant, the sludge produced by the comprehensive treatment of sewage, and the biogas residue produced after the treatment of kitchen waste are dehydrated and dried, and finally enter the domestic waste incineration;
  • the sewage generated by the domestic waste treatment, kitchen waste treatment and municipal sludge treatment is collected and then comprehensively treated to meet the reuse standard of reclaimed water;
  • the figure shows that in this example, the biogas direct combustion preheating of the primary air produced by the comprehensive sewage treatment and the steam preheating of the primary air are flexibly used to heat the primary air required for domestic waste incineration; the coke obtained from the catalytic pyrolysis of waste tires Activated carbon is obtained through further activation, and used as an adsorbent for the treatment of domestic waste incineration flue gas to remove dioxins and heavy metals in the flue gas; the biogas/combustible gas produced by the treatment of kitchen waste and the catalytic pyrolysis of waste tires, and the gas from domestic
  • the high-temperature steam from garbage incineration is used to produce hydrogen through biogas reforming to produce hydrogen, which is supplied to hydrogen energy garbage transport vehicles.
  • the present invention suggests that the mechanical grate incinerator is used for the incineration of domestic waste, and it is equipped with a condensing steam extraction steam turbine generator set and a flue gas treatment system; the electric energy generated by it is not only used in the park, but the remaining electric energy is connected to the grid and sent out. ; At the same time, according to the heat demand of other processing units in the park, steam is extracted from the steam extraction port of the steam turbine to provide heat energy.
  • the process of "pretreatment pulping oil extraction + whole material wet anaerobic fermentation” is adopted for the treatment of food waste;
  • the heat energy required for anaerobic fermentation of food waste and oil extraction comes from the steam of domestic waste incineration
  • the electricity comes from the electric energy generated by the incineration of domestic waste;
  • the biogas residue generated by the treatment of food waste is incinerated in the waste incinerator;
  • the biogas generated by the treatment of food waste is used for biogas reforming to produce hydrogen.
  • the invention suggests that the dehydration and drying of biogas residue/sludge adopts the process of "plate and frame filter press dehydration + steam indirect drying"; After frame filter dehydration, it is mixed with municipal sludge, and steam indirect drying is carried out together; the dried biogas residue and sludge enter the waste incinerator for co-incineration; the thermal energy and electric energy required for biogas residue/sludge dehydration and drying Provided by domestic waste incineration unit.
  • the invention suggests that the combustible gas produced by catalytic pyrolysis of waste tires is used for the equipment’s own use, and the remaining part is used for biogas reforming to produce hydrogen; the generated activated carbon is used as an adsorbent for flue gas treatment of domestic waste incineration; The electricity required for the solution comes from the domestic waste incineration unit.
  • the present invention suggests that the comprehensive treatment of sewage realizes centralized purification and disposal of sewage generated during the disposal process of solid waste such as domestic waste, kitchen waste, biogas residue/sludge, and waste tires, and the biogas generated during the disposal process enters the primary wind
  • the biogas is burned directly by the preheater, and the reclaimed water obtained from the comprehensive sewage treatment meets the reuse water standard and is reused in the park.
  • the invention suggests that the direct combustion preheating of the primary air biogas is arranged at the rear end of the primary air steam preheating of the domestic waste incineration unit. It needs to be further reminded that under normal circumstances, the primary air biogas direct combustion preheating is enabled, the primary air steam preheating is disabled, and the biogas produced by the comprehensive sewage treatment is passed into the primary air biogas direct combustion preheater for direct combustion for heating The primary air required for domestic waste incineration; in special cases such as insufficient biogas, the primary air biogas direct combustion preheating is disabled, the primary air steam preheating is enabled, and the high-temperature steam generated by domestic waste incineration is used to heat the primary air. It needs to be further reminded that in winter, the primary air biogas direct combustion preheating and the primary air steam preheating can be put into operation at the same time to obtain a higher primary air temperature.
  • biogas reforming hydrogen production includes the reforming of methane gas/methane gas in the biogas/combustible gas produced by the treatment of kitchen waste and the catalytic pyrolysis of waste tires to produce hydrogen, and the hydrogen is supplied to the hydrogen energy garbage transport vehicle.
  • steam reforming method is adopted for biogas reforming to produce hydrogen, and the required high-temperature steam is provided by domestic waste incineration unit.

Abstract

A strong coupling synergistic treatment method for waste in an urban vein industrial park: on the basis of the concepts of ecological industrial parks and circular economies, a municipal solid waste treatment system is taken as an integrated whole; according to physical and chemical characteristics of different solid wastes such as household garbage, kitchen garbage, municipal sludge and old tires, and process characteristics of combustion, anaerobic fermentation, pyrolysis and other processes, a synergistic coupling method for efficient circulation and cascade utilization of energy, intermediate products, and reclaimed water is established, which achieves the recycling of energy and materials, increases energy efficiency, reduces the consumption of chemical agents and reduces pollution emissions; by means of sharing a portion of treatment facilities, land resources are conserved and investment costs are reduced; at the same time, biogas/combustible gas is reformed to produce hydrogen, which is used for hydrogen energy garbage trucks, thereby successfully creating a green low-carbon closed-loop management model for solid wastes, and fully reflecting the concept of carbon-neutral solid waste energy stations.

Description

一种城市静脉产业园废弃物强耦合协同处理方法A method for strong coupling and collaborative treatment of waste in urban venous industrial parks 技术领域technical field
本发明涉及城市固体废弃物处理领域，尤其涉及一种城市静脉产业园废弃物强耦合协同处理方法。The invention relates to the field of urban solid waste treatment, in particular to a method for strongly coupled collaborative treatment of waste in urban venous industrial parks.
背景技术Background technique
随着城市的快速发展和人民生活水平的日益提高，维持城市发展运作和居民消费生活而产生的固体废物种类日趋复杂、数量急剧增长。With the rapid development of cities and the improvement of people's living standards, the types of solid waste generated to maintain urban development and operation and residents' consumption and life are becoming more and more complex and their quantities are increasing rapidly.
近年来，为了实现城市生活垃圾零填埋的目标，各地均在加快建设城市生活垃圾的末端处置设施。我国各地区固废处理产业水平、设计规划虽有差异，但都普遍存在处理设施分散、选址困难、环境影响面大、独立运行综合效益较低等问题。因此，提高城市固废低碳治理水平、提升固废综合能源效率，对促进我国固废治理领域绿色低碳发展具有重要现实意义。In recent years, in order to achieve the goal of zero landfill of municipal solid waste, all localities are speeding up the construction of terminal disposal facilities for municipal solid waste. Although there are differences in the industrial level and design planning of solid waste treatment in various regions of my country, there are common problems such as scattered treatment facilities, difficult site selection, large environmental impact, and low comprehensive benefits of independent operation. Therefore, improving the level of low-carbon treatment of urban solid waste and improving the comprehensive energy efficiency of solid waste has important practical significance for promoting the green and low-carbon development of solid waste treatment in my country.
面对固废清运量持续增长、固废种类差异性大、组分复杂、土地资源日益稀缺的严峻挑战，基于生态工业园和循环经济理念，将多种固废的不同处理工艺进行集成耦合，实现能量/物质梯级利用和污染物集中控制，充分发挥协同处理增效作用，是一种变废为宝的综合解决方案。Faced with the severe challenges of continuous growth in solid waste removal volume, large differences in solid waste types, complex components, and increasingly scarce land resources, based on the concept of eco-industrial parks and circular economy, integrate and couple different treatment processes for various solid wastes , realize energy/matter cascade utilization and centralized control of pollutants, and give full play to the synergistic effect of synergistic processing. It is a comprehensive solution for turning waste into wealth.
中国发明专利CN107008733B公开了城市静脉产业园及构建方法以及固体废物处理系统及方法，提出城市生活垃圾通过生活垃圾分流系统分为旧家电、建筑垃圾、家庭生活垃圾、餐饮垃圾、污泥及粪便和其他生物质废物；家庭生活垃圾通过干湿分离装置分为干垃圾和湿垃圾；旧家电、建筑垃圾和干垃圾通过化石类垃圾处理系统处理后形成玻璃、塑料、金属、垃圾衍生燃料和再生材料，同时化石类垃圾处理系统分别与发电系统、供暖系统连接；湿垃圾、餐饮垃圾、污泥及粪便和其他生物质废物通过生物质垃圾处理系统处理后形成再生水、生 物碳土、甲烷气和二氧化碳。本发明实现了“资源—产品—再生资源”的闭环模式，垃圾变废为宝、循环利用。但该专利只是将不同种类垃圾和不同处理工艺进行简单聚集和组合，并未构造不同垃圾和工艺之间的强耦合协同处理关系，未形成物质和能量的高效循环利用。Chinese invention patent CN107008733B discloses the urban venous industrial park and its construction method as well as the solid waste treatment system and method, and proposes that municipal solid waste is divided into old household appliances, construction waste, household waste, restaurant waste, sludge and feces through the domestic waste diversion system and Other biomass waste; household waste is divided into dry waste and wet waste through dry and wet separation devices; old household appliances, construction waste and dry waste are processed through fossil waste treatment systems to form glass, plastic, metal, waste-derived fuels and recycled materials At the same time, the fossil waste treatment system is connected to the power generation system and the heating system respectively; wet waste, restaurant waste, sludge, feces and other biomass waste are processed by the biomass waste treatment system to form recycled water, biocarbon soil, methane gas and carbon dioxide . The invention realizes the closed-loop mode of "resources-products-renewable resources", turning waste into treasure and recycling. However, this patent simply aggregates and combines different types of waste and different treatment processes, and does not construct a strongly coupled collaborative processing relationship between different wastes and processes, and does not form an efficient recycling of materials and energy.
中国专利公开号CN111750357A公开了一种以垃圾焚烧发电厂为核心的静脉产业园系统，实现市政污泥、餐厨垃圾、医疗垃圾、动物尸体和/或粪便固体废弃物的协同处置。该专利申请虽加强了不同固废处理之间的物质和能量循环利用，但是并未达到最优的协同处理关系，实现最佳的利用效率。比如，该专利提出将餐厨垃圾厌氧发酵产生的沼气直接送入垃圾焚烧炉进行焚烧，这虽然对沼气燃烧热量进行了回收，但是在保持垃圾焚烧炉总设计热量不变情况下，会造成炉膛垃圾处理量减少，而且沼气燃烧器安装位置处温度较高，长期运行会对设备造成一定损害。Chinese Patent Publication No. CN111750357A discloses a venous industrial park system centered on a waste incineration power plant to realize the collaborative disposal of municipal sludge, kitchen waste, medical waste, animal carcasses and/or fecal solid waste. Although this patent application strengthens the material and energy recycling between different solid waste treatments, it does not achieve the optimal collaborative processing relationship and achieve the best utilization efficiency. For example, the patent proposes that the biogas produced by the anaerobic fermentation of kitchen waste should be sent directly to the waste incinerator for incineration. Although the combustion heat of the biogas is recovered, if the total design heat of the waste incinerator remains unchanged, it will cause The amount of waste to be disposed of in the furnace is reduced, and the temperature at the installation position of the biogas burner is high, so long-term operation will cause certain damage to the equipment.
另一方面，目前城市机动车更换的废旧轮胎大部分未得到妥善处理，已公开的专利也未考虑依托现有的垃圾焚烧发电厂对工业固废，特别是废旧轮胎进行强耦合协同处理，以便提高废旧轮胎的资源化利用率。On the other hand, at present, most of the waste tires replaced by urban motor vehicles have not been properly processed, and the published patents have not considered relying on existing waste incineration power plants to carry out strong coupling and collaborative processing of industrial solid waste, especially waste tires, so that Improve the resource utilization rate of waste tires.
发明内容Contents of the invention
为了解决现有协同处理方法中耦合关系较弱，综合能源效率未实现最大化，且未综合考虑协同处理工业固废的问题，本发明提供了一种城市静脉产业园废弃物强耦合协同处理方法，把生活垃圾、餐厨垃圾、市政污泥、废旧轮胎多种固废和处理工艺在园区中进行网络化集成，优化园区不同处理技术的耦合匹配和各中间产物的高效协同方式，实现园区物质和能量的高效循环利用，提高系统整体综合能源效率和低碳化水平。In order to solve the problem that the coupling relationship is weak in the existing collaborative processing method, the comprehensive energy efficiency is not maximized, and the collaborative processing of industrial solid waste is not considered comprehensively, the present invention provides a strong coupling collaborative processing method for urban venous industrial park waste , network-integrate various solid wastes and treatment processes such as domestic waste, kitchen waste, municipal sludge, and waste tires in the park, optimize the coupling and matching of different treatment technologies in the park and the efficient synergy of intermediate products, and realize the material waste in the park. and efficient recycling of energy, improving the overall overall energy efficiency and low-carbonization level of the system.
本发明解决技术问题采用的方案：一种城市静脉产业园废弃物强耦合协同 处理方法，包括市政污泥处理、生活垃圾处理、废旧轮胎处理、餐厨垃圾处理和污水综合处理；The solution adopted by the present invention to solve the technical problem: a method for strongly coupled collaborative treatment of urban venous industrial park waste, including municipal sludge treatment, domestic garbage treatment, waste tire treatment, kitchen waste treatment and sewage comprehensive treatment;
生活垃圾经过焚烧发电处理后实现减量和无害化，产生的电能和热能除首先供应给其他处理单元使用之后，剩余部分外送；After the domestic waste is incinerated to generate electricity, it can be reduced and harmless, and the electricity and heat generated are first supplied to other processing units for use, and the rest is sent out;
所述的废旧轮胎处理采用“预破碎+催化热解+焦炭活化”(催化热解)工艺；The waste tire treatment adopts "pre-crushing + catalytic pyrolysis + coke activation" (catalytic pyrolysis) process;
生活污水厂产生的市政污泥、污水综合处理产生的污泥以及餐厨垃圾经过处理后产生的沼渣经过脱水干化，最后进入生活垃圾焚烧处理；The municipal sludge produced by the domestic sewage plant, the sludge produced by the comprehensive sewage treatment, and the biogas residue produced after the treatment of kitchen waste are dehydrated and dried, and finally enter the domestic waste incineration;
所述生活垃圾处理、餐厨垃圾处理及市政污泥处理产生的污水汇集后统一进行污水综合处理，达到中水回用标准；The sewage generated by the domestic waste treatment, kitchen waste treatment and municipal sludge treatment is collected and then comprehensively treated to meet the reuse standard of reclaimed water;
其特征在于，所述污水综合处理产生的一次风沼气直燃预热与一次风蒸汽预热灵活配合用于加热生活垃圾焚烧所需的一次风；废旧轮胎催化热解得到的焦炭通过进一步活化得到活性炭，并作为吸附剂用于生活垃圾焚烧烟气处理，脱除烟气中的二噁英和重金属；餐厨垃圾处理和废旧轮胎催化热解产生的沼气/可燃气，与来自生活垃圾焚烧的高温蒸汽，通过沼气重整制氢制取氢气，供应氢能垃圾运输车使用。It is characterized in that the biogas direct combustion preheating of the primary air produced by the comprehensive sewage treatment and the steam preheating of the primary air are flexibly used to heat the primary air required for domestic waste incineration; the coke obtained by catalytic pyrolysis of waste tires is further activated to obtain Activated carbon is used as an adsorbent for flue gas treatment of domestic waste incineration to remove dioxins and heavy metals in the flue gas; biogas/combustible gas generated from food waste treatment and catalytic pyrolysis of waste tires, and high temperature from domestic waste incineration Steam is used to produce hydrogen through biogas reforming to produce hydrogen, which is supplied to hydrogen energy garbage trucks.
进一步的，所述的生活垃圾焚烧采用机械炉排焚烧炉，配套凝汽抽汽式汽轮发电机组和烟气处理系统；其产生的电能除供应园区内部使用外，剩余电能并网外送；同时根据园区其他处理单元的用热需求，从汽轮机抽汽口抽取蒸汽提供热能。Further, the domestic waste incineration adopts a mechanical grate incinerator, which is equipped with a condensing steam extraction steam turbine generator set and a flue gas treatment system; the electric energy generated by it is not only used for internal use in the park, but the remaining electric energy is connected to the grid and sent out; At the same time, according to the heat demand of other processing units in the park, steam is extracted from the steam extraction port of the steam turbine to provide heat energy.
进一步的，所述的餐厨垃圾处理采用“预处理制浆提油+全物料湿式厌氧发酵”工艺；餐厨垃圾厌氧发酵及提油所需的热能来自生活垃圾焚烧的蒸汽，耗电来自生活垃圾焚烧产生的电能；餐厨垃圾处理产生的沼渣进入垃圾焚烧炉 焚烧；餐厨垃圾处理产生的沼气进行沼气重整制氢。Further, the above-mentioned food waste treatment adopts the process of "pretreatment pulping oil extraction + whole material wet anaerobic fermentation"; the heat energy required for anaerobic fermentation of food waste and oil extraction comes from the steam of domestic waste incineration, and the power consumption The electricity generated from the incineration of domestic waste; the biogas residue generated from the treatment of food waste is incinerated in the waste incinerator; the biogas generated from the treatment of food waste is used for biogas reforming to produce hydrogen.
进一步的，所述的沼渣/污泥脱水干化采用“板框压滤脱水+蒸汽间接式干化”工艺；来自餐厨垃圾处理产生的沼渣和污水综合处理产生的污泥经过板框压滤脱水后与市政污泥混合，一并进行蒸汽间接式干化；干化后的沼渣和污泥进入垃圾焚烧炉协同焚烧；沼渣/污泥脱水干化所需的热能和电能由生活垃圾焚烧单元提供。Further, the dehydration and drying of the biogas residue/sludge adopts the process of "plate and frame filter press dehydration + steam indirect drying"; After pressure filtration and dehydration, it is mixed with municipal sludge, and steam indirect drying is carried out together; the dried biogas residue and sludge enter the waste incinerator for co-incineration; the heat and electricity required for the dehydration and drying of biogas residue/sludge are provided by Domestic waste incineration unit provided.
进一步的，废旧轮胎经过催化热解产生的可燃气除用于设备自用外，剩余部分进行沼气重整制氢；产生的活性炭作为吸附剂用于生活垃圾焚烧的烟气处理；废旧轮胎催化热解所需的电能来自生活垃圾焚烧单元。Further, the combustible gas produced by catalytic pyrolysis of waste tires is used for the equipment’s own use, and the rest is used for biogas reforming to produce hydrogen; the generated activated carbon is used as an adsorbent for flue gas treatment of domestic waste incineration; waste tires are used for catalytic pyrolysis The required electrical energy comes from the MSW incineration unit.
进一步的，所述的污水综合处理实现对生活垃圾、餐厨垃圾、沼渣/污泥、废旧轮胎等固废在处置过程中产生的污水集中进行净化处置，处置过程产生的沼气进入一次风沼气直燃预热器燃烧，污水综合处理得到的中水满足回用水标准后供园区回用。Further, the comprehensive treatment of sewage realizes centralized purification and disposal of sewage generated during the disposal process of solid waste such as domestic garbage, kitchen waste, biogas residue/sludge, and waste tires, and the biogas generated during the disposal process enters the primary wind biogas The direct-fired preheater burns, and the reclaimed water obtained from the comprehensive sewage treatment meets the reuse water standard and is reused in the park.
进一步的，所述的一次风沼气直燃预热布置在生活垃圾焚烧单元一次风蒸汽预热后端；常规情况下，一次风沼气直燃预热启用，一次风蒸汽预热停用，污水综合处理产生的沼气通入一次风沼气直燃预热器中直接燃烧，用来加热生活垃圾焚烧所需的一次风；遇到沼气量不足等特殊情况，一次风沼气直燃预热停用，一次风蒸汽预热启用，采用生活垃圾焚烧产生的高温蒸汽对一次风进行加热。Further, the preheating of the primary air biogas direct combustion is arranged at the rear end of the primary air steam preheating of the domestic waste incineration unit; under normal circumstances, the primary air biogas direct combustion preheating is enabled, the primary air steam preheating is disabled, and the sewage comprehensive The biogas produced by the treatment is directly burned in the primary air biogas direct combustion preheater to heat the primary air required for domestic waste incineration; in case of special circumstances such as insufficient biogas, the primary air biogas direct combustion preheating is disabled, and the primary air biogas direct combustion preheater is disabled. Air steam preheating is enabled, and the primary air is heated by high-temperature steam generated by domestic waste incineration.
优选地，冬天可采用一次风沼气直燃预热和一次风蒸汽预热同时投运的方式来获得更高一次风温。Preferably, in winter, the primary air biogas direct combustion preheating and primary air steam preheating can be put into operation at the same time to obtain a higher primary air temperature.
进一步的，所述的沼气重整制氢包括餐厨垃圾处理和废旧轮胎催化热解产生的沼气/可燃气中的甲烷气体进行重整制取氢气，氢气供应氢能垃圾运输车使 用。Further, the biogas reforming hydrogen production includes the reforming of methane gas in biogas/combustible gas produced by food waste treatment and catalytic pyrolysis of waste tires to produce hydrogen, and the hydrogen is supplied to hydrogen energy garbage transport vehicles.
优选地，沼气重整制氢采用水蒸汽重整方法，所需高温水蒸汽由生活垃圾焚烧单元提供。Preferably, the steam reforming method is used for hydrogen production by biogas reforming, and the required high-temperature steam is provided by the domestic waste incineration unit.
本发明的有益效果：基于生态工业园和循环经济理念，本发明提出一种城市静脉产业园废弃物强耦合协同处理方法，将城市固体废物处理系统作为一个有机整体，根据生活垃圾、餐厨垃圾、市政污泥和废旧轮胎等不同固废的物理化学特性，以及燃烧、厌氧发酵和热解等工艺特点，建立起能量、中间产物、再生水高效流转和梯级利用的协同耦合方法，实现能量和物质的循环利用，提高能源效率，减少化学药剂消耗，降低污染排放；通过共用部分处置设施，节约土地资源，减少投资成本；同时将沼气/可燃气进行重整制氢，供应氢能垃圾运输车使用，成功打造成固废绿色低碳闭环治理的模式，充分体现出碳中和固废能源站的理念。Beneficial effects of the present invention: Based on the concept of ecological industrial parks and circular economy, the present invention proposes a method for strongly coupled and coordinated treatment of waste in urban venous industrial parks, taking the urban solid waste treatment system as an organic whole, and according to domestic waste, kitchen waste Based on the physical and chemical characteristics of different solid wastes such as municipal sludge and waste tires, as well as the process characteristics of combustion, anaerobic fermentation and pyrolysis, a synergistic coupling method for efficient circulation and cascade utilization of energy, intermediate products and reclaimed water is established to realize energy and waste. Recycling of materials, improving energy efficiency, reducing chemical consumption, and reducing pollution emissions; saving land resources and reducing investment costs by sharing part of the disposal facilities; at the same time, reforming biogas/combustible gas to produce hydrogen to supply hydrogen energy garbage trucks It has successfully created a green and low-carbon closed-loop management model for solid waste, which fully embodies the concept of carbon-neutral solid waste energy station.
附图说明：Description of drawings:
图1为本发明提出的一个实施例的工艺流程示意图。Fig. 1 is a schematic process flow diagram of an embodiment of the present invention.
具体实施例specific embodiment
图1为本发明提出的一个实施例的工艺流程示意图。图中显示，本例中，一种城市静脉产业园废弃物强耦合协同处理方法，包括市政污泥处理、生活垃圾处理、废旧轮胎处理、餐厨垃圾处理和污水综合处理；Fig. 1 is a schematic process flow diagram of an embodiment of the present invention. The figure shows, in this example, a strongly coupled collaborative treatment method for urban venous industrial park waste, including municipal sludge treatment, domestic waste treatment, waste tire treatment, kitchen waste treatment and comprehensive sewage treatment;
生活垃圾经过焚烧发电处理后实现减量和无害化，产生的电能和热能除首先供应给其他处理单元使用之后，剩余部分外送；After the domestic waste is incinerated to generate electricity, it can be reduced and harmless, and the electricity and heat generated are first supplied to other processing units for use, and the rest is sent out;
所述的废旧轮胎处理采用“预破碎+催化热解+焦炭活化”(催化热解)工艺；The waste tire treatment adopts "pre-crushing + catalytic pyrolysis + coke activation" (catalytic pyrolysis) process;
生活污水厂产生的市政污泥、污水综合处理产生的污泥以及餐厨垃圾经过 处理后产生的沼渣经过脱水干化，最后进入生活垃圾焚烧处理；The municipal sludge produced by the domestic sewage plant, the sludge produced by the comprehensive treatment of sewage, and the biogas residue produced after the treatment of kitchen waste are dehydrated and dried, and finally enter the domestic waste incineration;
所述生活垃圾处理、餐厨垃圾处理及市政污泥处理产生的污水汇集后统一进行污水综合处理，达到中水回用标准；The sewage generated by the domestic waste treatment, kitchen waste treatment and municipal sludge treatment is collected and then comprehensively treated to meet the reuse standard of reclaimed water;
图中显示，本例中，所述污水综合处理产生的一次风沼气直燃预热与一次风蒸汽预热灵活配合用于加热生活垃圾焚烧所需的一次风；废旧轮胎催化热解得到的焦炭通过进一步活化得到活性炭，并作为吸附剂用于生活垃圾焚烧烟气处理，脱除烟气中的二噁英和重金属；餐厨垃圾处理和废旧轮胎催化热解产生的沼气/可燃气，与来自生活垃圾焚烧的高温蒸汽，通过沼气重整制氢制取氢气，供应氢能垃圾运输车使用。The figure shows that in this example, the biogas direct combustion preheating of the primary air produced by the comprehensive sewage treatment and the steam preheating of the primary air are flexibly used to heat the primary air required for domestic waste incineration; the coke obtained from the catalytic pyrolysis of waste tires Activated carbon is obtained through further activation, and used as an adsorbent for the treatment of domestic waste incineration flue gas to remove dioxins and heavy metals in the flue gas; the biogas/combustible gas produced by the treatment of kitchen waste and the catalytic pyrolysis of waste tires, and the gas from domestic The high-temperature steam from garbage incineration is used to produce hydrogen through biogas reforming to produce hydrogen, which is supplied to hydrogen energy garbage transport vehicles.
本发明提示，所述的生活垃圾焚烧采用机械炉排焚烧炉，配套凝汽抽汽式汽轮发电机组和烟气处理系统；其产生的电能除供应园区内部使用外，剩余电能并网外送；同时根据园区其他处理单元的用热需求，从汽轮机抽汽口抽取蒸汽提供热能。The present invention suggests that the mechanical grate incinerator is used for the incineration of domestic waste, and it is equipped with a condensing steam extraction steam turbine generator set and a flue gas treatment system; the electric energy generated by it is not only used in the park, but the remaining electric energy is connected to the grid and sent out. ; At the same time, according to the heat demand of other processing units in the park, steam is extracted from the steam extraction port of the steam turbine to provide heat energy.
本发明提示，所述的餐厨垃圾处理采用“预处理制浆提油+全物料湿式厌氧发酵”工艺；餐厨垃圾厌氧发酵及提油所需的热能来自生活垃圾焚烧的蒸汽，耗电来自生活垃圾焚烧产生的电能；餐厨垃圾处理产生的沼渣进入垃圾焚烧炉焚烧；餐厨垃圾处理产生的沼气进行沼气重整制氢。According to the present invention, the process of "pretreatment pulping oil extraction + whole material wet anaerobic fermentation" is adopted for the treatment of food waste; the heat energy required for anaerobic fermentation of food waste and oil extraction comes from the steam of domestic waste incineration The electricity comes from the electric energy generated by the incineration of domestic waste; the biogas residue generated by the treatment of food waste is incinerated in the waste incinerator; the biogas generated by the treatment of food waste is used for biogas reforming to produce hydrogen.
本发明提示，所述的沼渣/污泥脱水干化采用“板框压滤脱水+蒸汽间接式干化”工艺；来自餐厨垃圾处理产生的沼渣和污水综合处理产生的污泥经过板框压滤脱水后与市政污泥混合，一并进行蒸汽间接式干化；干化后的沼渣和污泥进入垃圾焚烧炉协同焚烧；沼渣/污泥脱水干化所需的热能和电能由生活垃圾焚烧单元提供。The invention suggests that the dehydration and drying of biogas residue/sludge adopts the process of "plate and frame filter press dehydration + steam indirect drying"; After frame filter dehydration, it is mixed with municipal sludge, and steam indirect drying is carried out together; the dried biogas residue and sludge enter the waste incinerator for co-incineration; the thermal energy and electric energy required for biogas residue/sludge dehydration and drying Provided by domestic waste incineration unit.
本发明提示，废旧轮胎经过催化热解产生的可燃气除用于设备自用外，剩 余部分进行沼气重整制氢；产生的活性炭作为吸附剂用于生活垃圾焚烧的烟气处理；废旧轮胎催化热解所需的电能来自生活垃圾焚烧单元。The invention suggests that the combustible gas produced by catalytic pyrolysis of waste tires is used for the equipment’s own use, and the remaining part is used for biogas reforming to produce hydrogen; the generated activated carbon is used as an adsorbent for flue gas treatment of domestic waste incineration; The electricity required for the solution comes from the domestic waste incineration unit.
本发明提示，所述的污水综合处理实现对生活垃圾、餐厨垃圾、沼渣/污泥、废旧轮胎等固废在处置过程中产生的污水集中进行净化处置，处置过程产生的沼气进入一次风沼气直燃预热器燃烧，污水综合处理得到的中水满足回用水标准后供园区回用。The present invention suggests that the comprehensive treatment of sewage realizes centralized purification and disposal of sewage generated during the disposal process of solid waste such as domestic waste, kitchen waste, biogas residue/sludge, and waste tires, and the biogas generated during the disposal process enters the primary wind The biogas is burned directly by the preheater, and the reclaimed water obtained from the comprehensive sewage treatment meets the reuse water standard and is reused in the park.
本发明提示，所述的一次风沼气直燃预热布置在生活垃圾焚烧单元一次风蒸汽预热后端。需要进一步提示的是，常规情况下，一次风沼气直燃预热启用，一次风蒸汽预热停用，污水综合处理产生的沼气通入一次风沼气直燃预热器中直接燃烧，用来加热生活垃圾焚烧所需的一次风；遇到沼气量不足等特殊情况，一次风沼气直燃预热停用，一次风蒸汽预热启用，采用生活垃圾焚烧产生的高温蒸汽对一次风进行加热。还需要进一步提示的是，冬天可采用一次风沼气直燃预热和一次风蒸汽预热同时投运的方式来获得更高一次风温。The invention suggests that the direct combustion preheating of the primary air biogas is arranged at the rear end of the primary air steam preheating of the domestic waste incineration unit. It needs to be further reminded that under normal circumstances, the primary air biogas direct combustion preheating is enabled, the primary air steam preheating is disabled, and the biogas produced by the comprehensive sewage treatment is passed into the primary air biogas direct combustion preheater for direct combustion for heating The primary air required for domestic waste incineration; in special cases such as insufficient biogas, the primary air biogas direct combustion preheating is disabled, the primary air steam preheating is enabled, and the high-temperature steam generated by domestic waste incineration is used to heat the primary air. It needs to be further reminded that in winter, the primary air biogas direct combustion preheating and the primary air steam preheating can be put into operation at the same time to obtain a higher primary air temperature.
本发明提示，所述的沼气重整制氢包括餐厨垃圾处理和废旧轮胎催化热解产生的沼气/可燃气中的甲烷气体进行重整制取氢气，氢气供应氢能垃圾运输车使用。The present invention suggests that the biogas reforming hydrogen production includes the reforming of methane gas/methane gas in the biogas/combustible gas produced by the treatment of kitchen waste and the catalytic pyrolysis of waste tires to produce hydrogen, and the hydrogen is supplied to the hydrogen energy garbage transport vehicle.
进一步提示，沼气重整制氢采用水蒸汽重整方法，所需高温水蒸汽由生活垃圾焚烧单元提供。It is further suggested that steam reforming method is adopted for biogas reforming to produce hydrogen, and the required high-temperature steam is provided by domestic waste incineration unit.

Claims (10)

  1. 一种城市静脉产业园废弃物强耦合协同处理方法，包括市政污泥处理、生活垃圾处理、废旧轮胎处理、餐厨垃圾处理和污水综合处理；A method for strongly coupled collaborative treatment of waste in urban venous industrial parks, including municipal sludge treatment, domestic waste treatment, waste tire treatment, kitchen waste treatment and comprehensive sewage treatment;
    生活垃圾经过焚烧发电处理后实现减量和无害化，产生的电能和热能除首先供应给其他处理单元使用之后，剩余部分外送；After the domestic waste is incinerated to generate electricity, it can be reduced and harmless, and the electricity and heat generated are first supplied to other processing units for use, and the rest is sent out;
    所述的废旧轮胎处理采用预破碎+催化热解+焦炭活化催化热解工艺；The waste tire treatment adopts pre-crushing + catalytic pyrolysis + coke activation catalytic pyrolysis process;
    生活污水厂产生的市政污泥、污水综合处理产生的污泥以及餐厨垃圾经过处理后产生的沼渣经过脱水干化，最后进入生活垃圾焚烧处理；The municipal sludge produced by the domestic sewage plant, the sludge produced by the comprehensive sewage treatment, and the biogas residue produced after the treatment of kitchen waste are dehydrated and dried, and finally enter the domestic waste incineration;
    所述生活垃圾处理、餐厨垃圾处理及市政污泥处理产生的污水汇集后统一进行污水综合处理，达到中水回用标准；The sewage generated by the domestic waste treatment, kitchen waste treatment and municipal sludge treatment is collected and then comprehensively treated to meet the reuse standard of reclaimed water;
    其特征在于，所述污水综合处理产生的一次风沼气直燃预热与一次风蒸汽预热灵活配合用于加热生活垃圾焚烧所需的一次风；废旧轮胎催化热解得到的焦炭通过进一步活化得到活性炭，并作为吸附剂用于生活垃圾焚烧烟气处理，脱除烟气中的二噁英和重金属；餐厨垃圾处理和废旧轮胎催化热解产生的沼气/可燃气，与来自生活垃圾焚烧的高温蒸汽，通过沼气重整制氢制取氢气，供应氢能垃圾运输车使用。It is characterized in that the biogas direct combustion preheating of the primary air produced by the comprehensive sewage treatment and the steam preheating of the primary air are flexibly used to heat the primary air required for domestic waste incineration; the coke obtained by catalytic pyrolysis of waste tires is further activated to obtain Activated carbon is used as an adsorbent for flue gas treatment of domestic waste incineration to remove dioxins and heavy metals in the flue gas; biogas/combustible gas generated from food waste treatment and catalytic pyrolysis of waste tires, and high temperature from domestic waste incineration Steam is used to produce hydrogen through biogas reforming to produce hydrogen, which is supplied to hydrogen energy garbage trucks.
  2. 根据权利要求1所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，所述生活垃圾焚烧采用机械炉排焚烧炉，配套凝汽抽汽式汽轮发电机组和烟气处理系统；其产生的电能除供应园区内部使用外，剩余电能并网外送；同时根据园区其他处理单元的用热需求，从汽轮机抽汽口抽取蒸汽提供热能。According to claim 1, the strong-coupling synergistic treatment method for urban venous industrial park waste is characterized in that the domestic waste is incinerated using a mechanical grate incinerator, equipped with a condensing steam extraction steam turbine generator set and a flue gas treatment system ; The electric energy generated by it is not only supplied to the internal use of the park, but the remaining electric energy is connected to the grid and sent out; at the same time, according to the heat demand of other processing units in the park, steam is extracted from the steam extraction port of the steam turbine to provide heat energy.
  3. 根据权利要求1所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，所述餐厨垃圾处理采用“预处理制浆提油+全物料湿式厌氧发酵”工艺；餐厨垃圾厌氧发酵及提油所需的热能来自生活垃圾焚烧的蒸汽，耗电来自生活垃圾焚烧产生的电能；餐厨垃圾处理产生的沼渣进入垃圾焚烧炉焚烧；餐厨垃 圾处理产生的沼气进行沼气重整制氢。According to claim 1, the strong-coupling synergistic treatment method for urban venous industrial park waste is characterized in that the kitchen waste treatment adopts the process of "pretreatment pulping and oil extraction + wet anaerobic fermentation of all materials"; The heat energy required for anaerobic fermentation and oil extraction comes from the steam from domestic waste incineration, and the power consumption comes from the electric energy generated by domestic waste incineration; the biogas residue generated from food waste treatment enters the garbage incinerator for incineration; the biogas generated from food waste treatment is used for biogas Reforming to produce hydrogen.
  4. 根据权利要求1所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，所述脱水干化采用“板框压滤脱水+蒸汽间接式干化”工艺；来自餐厨垃圾处理产生的沼渣和污水综合处理产生的污泥经过板框压滤脱水后与市政污泥混合，一并进行蒸汽间接式干化；干化后的沼渣和污泥进入垃圾焚烧炉协同焚烧；沼渣/污泥脱水干化所需的热能和电能由生活垃圾焚烧单元提供。According to claim 1, the strong-coupling collaborative processing method for waste in urban venous industrial parks is characterized in that the dehydration and drying adopts the process of "plate and frame filter press dehydration + steam indirect drying"; The sludge produced by the comprehensive treatment of biogas residue and sewage is dewatered by plate and frame filter, mixed with municipal sludge, and then dried indirectly by steam; the dried biogas residue and sludge enter the waste incinerator for co-incineration; biogas The heat and electricity required for slag/sludge dehydration and drying are provided by the domestic waste incineration unit.
  5. 根据权利要求1所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，废旧轮胎经过催化热解产生的可燃气除用于设备自用外，剩余部分进行沼气重整制氢；产生的活性炭作为吸附剂用于生活垃圾焚烧的烟气处理；废旧轮胎催化热解所需的电能来自生活垃圾焚烧单元。According to claim 1, the strong-coupled co-processing method for waste in urban venous industrial parks is characterized in that the combustible gas produced by catalytic pyrolysis of waste tires is used for the equipment’s own use, and the remaining part is used for biogas reforming to produce hydrogen; The activated carbon is used as an adsorbent for the flue gas treatment of domestic waste incineration; the electric energy required for the catalytic pyrolysis of waste tires comes from the domestic waste incineration unit.
  6. 根据权利要求1所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，所述污水综合处理实现对生活垃圾、餐厨垃圾、沼渣/污泥、废旧轮胎等固废在处置过程中产生的污水集中进行净化处置，处置过程产生的沼气进入一次风沼气直燃预热器燃烧，污水综合处理得到的中水满足回用水标准后供园区回用。According to claim 1, the strong coupling collaborative treatment method for waste in urban venous industrial parks is characterized in that the comprehensive treatment of sewage realizes the in-process disposal of solid waste such as domestic waste, kitchen waste, biogas residue/sludge, and waste tires The sewage generated during the process is purified and disposed of in a concentrated manner. The biogas generated during the disposal process enters the primary wind biogas direct combustion preheater for combustion. The reclaimed water obtained from the comprehensive sewage treatment meets the reuse water standard and is reused in the park.
  7. 根据权利要求1所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，所述的一次风沼气直燃预热布置在生活垃圾焚烧单元一次风蒸汽预热后端；常规情况下，一次风沼气直燃预热启用，一次风蒸汽预热停用，污水综合处理产生的沼气通入一次风沼气直燃预热器中直接燃烧，用来加热生活垃圾焚烧所需的一次风；遇到沼气量不足等特殊情况，一次风沼气直燃预热停用，一次风蒸汽预热启用，采用生活垃圾焚烧产生的高温蒸汽对一次风进行加热。According to claim 1, the strong-coupling collaborative processing method for waste in urban venous industrial parks is characterized in that the direct combustion preheating of the primary air biogas is arranged at the rear end of the primary air steam preheating of the domestic waste incineration unit; under normal circumstances , the primary air biogas direct combustion preheating is enabled, the primary air steam preheating is disabled, and the biogas generated by the comprehensive sewage treatment is passed into the primary air biogas direct combustion preheater for direct combustion, which is used to heat the primary air required for domestic waste incineration; In special cases such as insufficient biogas, the primary air biogas direct combustion preheating is disabled, the primary air steam preheating is enabled, and the primary air is heated by high-temperature steam generated by domestic waste incineration.
  8. 根据权利要求7所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，冬天可采用一次风沼气直燃预热和一次风蒸汽预热同时投运的方式来获得 更高一次风温。According to claim 7, the strong-coupled co-processing method for waste in urban venous industrial parks is characterized in that in winter, the primary air biogas direct combustion preheating and the primary air steam preheating can be put into operation at the same time to obtain higher primary wind. temperature.
  9. 根据权利要求1所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，所述沼气重整制氢包括餐厨垃圾处理和废旧轮胎催化热解产生的沼气/可燃气中的甲烷气体进行重整制取氢气，氢气供应氢能垃圾运输车使用。According to claim 1, the strongly coupled collaborative treatment method for waste in urban venous industrial parks is characterized in that the biogas reforming hydrogen production includes methane in biogas/combustible gas produced by food waste treatment and catalytic pyrolysis of waste tires The gas is reformed to produce hydrogen, and the hydrogen is supplied to the hydrogen energy garbage truck.
  10. 根据权利要求9所述的城市静脉产业园废弃物强耦合协同处理方法，其特征是，沼气重整制氢采用水蒸汽重整方法，所需高温水蒸汽由生活垃圾焚烧单元提供。According to claim 9, the strongly coupled collaborative treatment method for waste in urban venous industrial parks is characterized in that the steam reforming method is used for hydrogen production by biogas reforming, and the required high-temperature steam is provided by the domestic waste incineration unit.
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CN109226174A (en) * 2017-07-10 2019-01-18 广东合即得能源科技有限公司 The food garbage processing system of natural pond combined gas, heating, cooling and electricity system
CN111750357A (en) * 2019-10-03 2020-10-09 上海康恒环境股份有限公司 Vein industrial park system with waste incineration power plant as core

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