CN107420915A - A kind of self-holding CIU of sludge and method of work - Google Patents

A kind of self-holding CIU of sludge and method of work Download PDF

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Publication number
CN107420915A
CN107420915A CN201710404032.1A CN201710404032A CN107420915A CN 107420915 A CN107420915 A CN 107420915A CN 201710404032 A CN201710404032 A CN 201710404032A CN 107420915 A CN107420915 A CN 107420915A
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China
Prior art keywords
sludge
incinerator
steam
burning
warehouse
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CN201710404032.1A
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Chinese (zh)
Inventor
张国闽
魏伟
胡明
宋祖威
刘龙
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Individual
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Priority to CN201710404032.1A priority Critical patent/CN107420915A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/10—Drying by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00—Supplementary heating arrangements
    • F23G2204/10—Supplementary heating arrangements using auxiliary fuel
    • F23G2204/103—Supplementary heating arrangements using auxiliary fuel gaseous or liquid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/20—Waste heat recuperation using the heat in association with another installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/12—Sludge, slurries or mixtures of liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/14—Gaseous waste or fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/10—Nitrogen; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/30—Halogen; Compounds thereof
    • F23J2215/301—Dioxins; Furans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/60—Heavy metals; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/101—Baghouse type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/102—Intercepting solids by filters electrostatic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/20—Non-catalytic reduction devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/30—Sorption devices using carbon, e.g. coke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/40—Sorption with wet devices, e.g. scrubbers
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a kind of self-holding CIU of sludge and method of work, the self-holding CIU of sludge includes storage and delivery system, half-drying system, burning and afterheat boiler system, turbine generating system, smoke processing system and ash processing system；The half-drying system includes sludge drying machine, the burning and afterheat boiler system include incinerator and waste heat boiler, the turbine generating system includes steam turbine generator and steam circulation pipeline, and the steam circulation pipeline includes the closed loop cycle pipeline for being sequentially connected in series the steam turbine generator, sludge drying machine and burning and afterheat boiler system.Its method of work is generated electricity using heat caused by burning and carries out desiccation operation to wet mud for half-drying system.Desiccation+burning+afterheat utilizing system of the invention whole coordinates its application method to have very high efficiency of utilization, and can realize that sludge is controlled oneself without adding external energy burns, year run time reach 8000h, exiting flue gas meets national standard discharge.

Description

A kind of self-holding CIU of sludge and method of work
Technical field
The present invention relates to pollutant process field, more particularly to a kind of self-holding CIU of sludge and method of work.
Background technology
For a long time, the tendency of wastewater treatment in China circle generally existing " the light mud of heavy water ", leaves at lower many Treatment of Sludge Put problem.Resultant product of the sludge as sewage disposal, it is caused high-moisture deposit in sewage disposal process, is by more The aggregate of kind microbial bacteria micelle and its organic matter and inorganic matter of absorption composition.It is poisonous and harmful containing heavy metal etc. in sludge Material and pathogen, parasite and hard-degraded substance, serious threat the safety of the mankind and ecological environment.If sludge obtains not Disposed to scientific and reasonable processing, it is easy to cause secondary pollution.At present, specific resistance to filtration has become wastewater treatment in China Industry and the bottleneck of Development of China's Urbanization fast development.
Sludge incineration is a kind of high-temperature heat treatment technology, and harmful and noxious substance can be in high temperature because of oxidative pyrolysis in sludge And be destroyed, it is presently the most thoroughly processing method.Sludge incineration can realize to greatest extent the minimizing of sludge, recycling and It is innoxious, have the advantages that floor space is small, processing speed is fast, clinker can continue with, at present, sludge incineration is applied at home It is more and more extensive.
The composition of municipal sludge and the source of sewage, handling process, the living standard of city dweller and dietary structure etc. have Close.The sludge dry base heat value of the developed countries such as Japan, Italy, Germany, the U.S. is higher, and average is in 15~19MJ/kg, China city City's sludge dry base heat value average is in 11MJ/kg or so, and compared with the developed countries such as America and Europe, China's sludge dry base heat value is low 22.4%~37.7%.Meanwhile the outward transport sludge such as domestic sludge factory still has higher moisture content, the sludge after dehydration concentrates Moisture content is substantially 80% or so.Higher moisture content and relatively low sludge calorific value cause most domestic sludge can only be used as to mix Thing is burnt, cooperative disposal is carried out with garbage incinerating power plant, cement kiln and coal-burning power plant etc., but to mix burning amount limited and dirty for sludge Mud mixes the softening point for burning and reducing in-furnace temperature and ash, and increases flying dust yield, increases dedusting and gas cleaning load, reduces A series of shortcomings such as boiler efficiency.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of controlling oneself for achievable sludge Burning, low energy consumption, reliable and stable, suitable for mass disposal the self-holding CIU of sludge and method of work.
Technical scheme：To achieve the above object, sludge of the invention controls oneself CIU from front to back successively including storage With induction system, half-drying system, burning and afterheat boiler system, turbine generating system, smoke processing system and lime-ash Processing system；The half-drying system includes sludge drying machine, and the burning and afterheat boiler system include incinerator and waste heat Boiler, the turbine generating system include steam turbine generator and steam circulation pipeline, and the steam circulation pipeline includes successively Connect the closed loop cycle pipeline of the steam turbine generator, sludge drying machine and burning and afterheat boiler system.
Further, in addition to the smoke exhaust system that is arranged at after the smoke processing system, the flue gas discharge System includes smoke re-heater, air-introduced machine and chimney successively, and the steam circulation pipeline, which also includes, is sequentially connected in series the steamer hair Motor, smoke re-heater and burning and the closed loop cycle pipeline of afterheat boiler system.
Further, the incinerator is multilayer bubbling fluidized bed incinerator, coordinates the incinerator to be provided with and is arranged at Incinerator top be used for into incinerator spray into urea liquid urea warehouse, for into incinerator inject combustion adjuvant it is combustion-supporting Agent storage tank, the air line for injecting air into the incinerator, the air line are provided with air blower, and the sky Gas pipeline passes through the waste heat boiler.
Further, the smoke processing system includes electrostatic precipitator, charcoal absorption system, bag-type dust successively Device, wet scrubber tower, the ash processing system include common flying dust warehouse and the cooperation for coordinating the electrostatic precipitator to use The danger wastes warehouse that the sack cleaner uses.
Further, the wet scrubber tower is coordinated to be provided with cleaning solution pipeline and for by the wet scrubber tower Cleaning solution lifting after the detergent circulator that is sprayed into from the top of the wet scrubber tower.
Further, storage and delivery system generally negative pressure is run, and negative pressure is run extracted out gas and led to by pipeline Enter the incinerator.
A kind of sludge control oneself CIU method of work, sludge control oneself CIU from front to back successively include storage and Induction system, half-drying system, burning and afterheat boiler system, turbine generating system, smoke processing system, lime-ash processing system System and smoke exhaust system；The storage and delivery system includes wet mud warehouse and the spiral transferring of wet mud warehouse bottom Send machine；The half-drying system includes sludge drying machine and the second conveying worm, and the burning and afterheat boiler system include Incinerator and waste heat boiler, the turbine generating system include steam turbine generator and steam circulation pipeline, the fume treatment System includes electrostatic precipitator, charcoal absorption system, sack cleaner, wet scrubber tower, the charcoal absorption system successively System includes activated carbon warehouse, and activated carbon is entered in flue by activated carbon warehouse by spray regime to be sufficiently mixed with flue gas, described Ash processing system includes the common flying dust warehouse for coordinating the electrostatic precipitator to use and coordinates the sack cleaner to use Danger wastes warehouse；The smoke exhaust system includes including smoke re-heater, air-introduced machine and chimney successively；The steaming Vapour cycle pipeline includes and is sequentially connected in series the steam turbine generator, sludge drying machine and burning and the closed loop of afterheat boiler system is followed Endless tube line and the closed loop cycle for being sequentially connected in series the steam turbine generator, smoke re-heater and burning and afterheat boiler system Pipeline；
Comprise the following steps：
Step 1：Enter wet mud warehouse after outward transport sludge is weighed, the sludge in wet mud warehouse is through conveying worm It is sent into the half-drying system；The storage and delivery system entirety negative pressure operation, negative pressure run extracted out foul smell and pass through pipe Road is passed through the incinerator and burned；
Step 2：Wet mud is carried out semi-oriented processing and becomes semi-oriented sludge, sludge drying machine by the sludge drying machine Thermal source come from steam in the steam circulation pipeline；
Step 3：Semi-oriented sludge delivers into the incinerator by second conveying worm and burned, and incinerator is adopted Start burning with the combustion adjuvant injected by the combustion adjuvant storage tank, stop injection combustion adjuvant after incinerator normal operation；Burn Air needed for stove is provided by the air blower on air line and preheated through waste heat boiler；Incinerator top urea warehouse sprays into urine Plain solution carries out SNCR method denitration；
Step 4：High-temperature flue gas caused by incinerator enters the waste heat boiler, and waste heat boiler heats the steam and followed Steam in endless tube line forms high temperature and high pressure steam, and high temperature and high pressure steam is generated electricity into steam turbine generator, from turbine generator The steam that machine comes out is divided into two-way as thermal source, and steam passes through the cigarette by the sludge drying machine, another way steam all the way Gas reheater, the steam turbine generator, shape are turned again to by the burning and afterheat boiler system after then two-way steam collects Into circulation；
Step 5：Flue gas after waste heat boiler utilizes enters electrostatic precipitator rough dusting, is sunk caused by rough dusting Starch is stored by common flying dust warehouse；Bioxin caused by sludge incineration and heavy metal are removed using charcoal absorption mode, living Property charcoal entered by activated carbon warehouse by spray regime in flue and be sufficiently mixed with flue gas；The flue gas that carry activated carbon granule enters Enter sack cleaner dedusting again, sediment caused by dedusting is stored by danger wastes warehouse again；Flue gas after filtering from Wet scrubber tower bottom enters, and coordinates the wet scrubber tower to be provided with cleaning solution pipeline and detergent circulator, wet type is washed Wash the penetrating from scrubbing tower above after the cleaning solution scrubbed liquid circulating pump lifting of tower bottom, cleaning solution and flue gas are inverse in scrubbing tower To flowing and carry out absorbing reaction；
Step 6：The reacted flue-gas temperature of wet scrubber tower is relatively low, through smoke re-heater indirect heat exchange, then by drawing Blower fan is discharged into chimney.
Further, sludge drying machine outlet sludge temperature range is 100~105 DEG C, sludge drying machine discharge tail Gas temperature range is 98~100 DEG C, and the efficiency of utilization scope of sludge drying machine is 90~95%.
Further, the solid content scope of the sludge of the sludge drying machine import is 20~25%, and sludge drying machine goes out The solid content scope of the sludge of mouth is 43~47%.
Further, the ignition temperature in the incinerator is 850~950 DEG C, and flue-gas temperature produced by burning is at 850 DEG C Above residence time is more than 2s, and incinerator has 15% overload capacity.
Beneficial effect：The self-holding CIU of the sludge of the present invention and method of work have the following advantages that：
(1) complete conduction-type desiccation machine is used, thermal medium passes through the excellent metal of heat conductivility with sludge in drying process Heat-transfer surface exchanges heat, and this indirect heat transfer mode influences the not direct heated medium of the temperature of sludge, and it is mainly balanced by water evaporation The influence of state, so that the dry mud temperature for leaving desiccation machine is very low, about 100~105 DEG C, the exhaust temperature that desiccation machine is discharged About 98~100 DEG C, desiccation machine has 90~95% high efficiency of utilization；
(2) multilayer bubbling fluidized bed is typically a cylindrical reactor, without moving parts in reative cell, has structure The characteristics of stable；
(3) whole desiccation+burning+afterheat utilizing system has very high efficiency of utilization, without adding external energy energy Enough realize that sludge is controlled oneself to burn, year run time reach 8000h, exiting flue gas meets that national standard is discharged.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of the self-holding CIU of sludge.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
The self-holding CIU of sludge as shown in Figure 1, includes storage and delivery system, semi-oriented system successively from front to back System, burning and afterheat boiler system, turbine generating system, smoke processing system, ash processing system and flue gas discharge system System.Solid line filled arrows represent steam pipe line in accompanying drawing, and dotted line hollow arrow represents air line, solid line hollow arrow expression thing Expects pipe line.
The storage and delivery system includes wet mud warehouse 1 and the conveying worm of the bottom of wet mud warehouse 1；Spiral Wet mud in wet mud warehouse 1 is gradually pushed to the half-drying system by conveyer.
The half-drying system includes the conveying worm 4 of sludge drying machine 2 and second, and sludge drying machine 2 is included by heat conduction Property metal heat-exchange face made of excellent metal, it is excellent by heat conductivility that thermal medium and sludge in drying process are carried out to wet mud Good metal heat-exchange face heat exchange, this indirect heat transfer mode influence the not direct heated medium of the temperature of sludge, and it is mainly by water The influence of poised state is evaporated, so that the dry mud temperature for leaving desiccation machine is very low, sludge drying machine 2 exports sludge temperature range For 100~105 DEG C, the emission temperature range of sludge drying machine 2 is 98~100 DEG C, the efficiency of utilization model of sludge drying machine 2 Enclose for 90~95%.The solid content scope of the sludge of the import of sludge drying machine 2 is 20~25%, and sludge drying machine 2 exports Sludge solid content scope be 43~47%.
The burning and afterheat boiler system include incinerator 7 and waste heat boiler 8, and the incinerator 7 is multilayer bubble flow Fluidized-bed incineration stove, coordinate the incinerator 7 to be provided with and be arranged at the top of incinerator 7 for spraying into urea liquid into incinerator 7 Urea warehouse 6, the combustion adjuvant storage tank 5 for injecting combustion adjuvant into incinerator 7, empty for being injected into the incinerator 7 The air line of gas, the air line is provided with air blower 3, and the air line passes through the waste heat boiler 8 to passing through Air in air hose is heated.Ignition temperature in the incinerator 7 is 850~950 DEG C, flue-gas temperature produced by burning Residence time is more than 2s more than 850 DEG C, and incinerator 7 has 15% overload capacity.
The turbine generating system includes steam turbine generator 9 and steam circulation pipeline, and steam turbine generator 9 is back pressure type vapour Turbine generator, the steam circulation pipeline include be sequentially connected in series the steam turbine generator 9, sludge drying machine 2 and burn and it is remaining The closed loop cycle pipeline of hot pot furnace system and be sequentially connected in series the steam turbine generator 9, smoke re-heater 17 and burn and it is remaining The closed loop cycle pipeline of hot pot furnace system；
The smoke processing system includes electrostatic precipitator 12, charcoal absorption system, sack cleaner 14, wet type successively Scrubbing tower 15, the charcoal absorption system include activated carbon warehouse 13, and activated carbon passes through spray regime by activated carbon warehouse 13 It is sufficiently mixed into flue with flue gas, the ash processing system is common winged including coordinating the electrostatic precipitator 12 to use Grey warehouse 10 and the danger wastes warehouse 11 for coordinating the sack cleaner 14 to use.
The smoke exhaust system includes including smoke re-heater 17, air-introduced machine 18 and chimney 19 successively.
Based on the method for work of the self-holding CIU of above-mentioned sludge, comprise the following steps：
Step 1：Enter wet mud warehouse 1 after outward transport sludge is weighed, the sludge in wet mud warehouse 1 is through helical feed Machine is sent into the half-drying system；The storage and delivery system entirety negative pressure operation, negative pressure are run extracted out foul smell and passed through Pipeline is passed through the incinerator 7 and burned；
Step 2：Wet mud is carried out semi-oriented processing and becomes semi-oriented sludge, sludge drying machine by the sludge drying machine 2 2 thermal source comes from the steam in the steam circulation pipeline；
Step 3：Semi-oriented sludge delivers into the incinerator 7 by second conveying worm 4 and burned, incinerator 7 Burning is started using the combustion adjuvant injected by the combustion adjuvant storage tank 5, stops injection combustion adjuvant after 7 normal operation of incinerator, Preferably, the combustion adjuvant is light diesel fuel；Air needed for incinerator 7 is provided and through waste heat by the air blower 3 on air line Boiler 8 preheats；The top urea warehouse 6 of incinerator 7 sprays into urea liquid and carries out SNCR method (SNCR) denitration；
Step 4：High-temperature flue gas caused by incinerator 7 enters the waste heat boiler 8, and waste heat boiler 8 heats the steam Steam in pipeloop forms high temperature and high pressure steam, and high temperature and high pressure steam is generated electricity into steam turbine generator 9, turbine generator The electricity of machine 9 only provides on-site electricity consumption, and the steam come out from steam turbine generator 9 is divided into two-way as thermal source, all the way steam Pass through the smoke re-heater 17 by the sludge drying machine 2, another way steam, burnt after then two-way steam collects by described Burn and afterheat boiler system turns again to the steam turbine generator 9, form circulation；
Step 5：Flue gas after the utilization of waste heat boiler 8 enters the dedusting of electrostatic precipitator 12, and the dust except under is by commonly flying Grey warehouse 10 stores；Bioxin caused by sludge incineration and heavy metal are removed using charcoal absorption mode, and activated carbon is by activity Charcoal warehouse 13 is entered in flue by spray regime to be sufficiently mixed with flue gas；The flue gas that carry activated carbon granule removes into cloth bag The dedusting again of dirt device 14, again the dust except under stored by danger wastes warehouse 11；Flue gas after filtering is from wet scrubber tower 15 bottoms enter, and coordinate the wet scrubber tower 15 to be provided with cleaning solution pipeline and detergent circulator 16, wet scrubber tower The scrubbed liquid circulating pump 16 of cleaning solution of 15 bottoms sprays into after being lifted above scrubbing tower 15, and cleaning solution is with flue gas in scrubbing tower Reverse flow simultaneously carries out absorbing reaction；
Step 6：15 reacted flue-gas temperature of wet scrubber tower is relatively low, then logical through the indirect heat exchange of smoke re-heater 17 Cross air-introduced machine 18 and be discharged into chimney 19.
The self-holding CIU of the sludge of the present invention and method of work have the following advantages that：
(1) complete conduction-type desiccation machine is used, thermal medium passes through the excellent metal of heat conductivility with sludge in drying process Heat-transfer surface exchanges heat, and this indirect heat transfer mode influences the not direct heated medium of the temperature of sludge, and it is mainly balanced by water evaporation The influence of state, so that the dry mud temperature for leaving desiccation machine is very low, about 100~105 DEG C, the exhaust temperature that desiccation machine is discharged About 98~100 DEG C, desiccation machine has 90~95% high efficiency of utilization；
(2) multilayer bubbling fluidized bed is typically a cylindrical reactor, without moving parts in reative cell, has structure The characteristics of stable；
(3) whole desiccation+burning+afterheat utilizing system has very high efficiency of utilization, without adding external energy energy Enough realize that sludge is controlled oneself to burn, year run time reach 8000h, exiting flue gas meets that national standard is discharged.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (10)

  1. The CIU 1. a kind of sludge is controlled oneself, it is characterised in that：Include storage and delivery system, semi-oriented system successively from front to back System, burning and afterheat boiler system, turbine generating system, smoke processing system and ash processing system；It is described semi-oriented System includes sludge drying machine (2), and the burning and afterheat boiler system include incinerator (7) and waste heat boiler (8), the vapour Turbine electricity generation system includes steam turbine generator (9) and steam circulation pipeline, and the steam circulation pipeline is described comprising being sequentially connected in series Steam turbine generator (9), sludge drying machine (2) and the closed loop cycle pipeline of burning and afterheat boiler system.
  2. The CIU 2. a kind of sludge according to claim 1 is controlled oneself, it is characterised in that：Also include being arranged at the flue gas Smoke exhaust system after processing system, the smoke exhaust system include smoke re-heater (17), air-introduced machine (18) successively With chimney (19), the steam circulation pipeline also comprising be sequentially connected in series the steam turbine generator (9), smoke re-heater (17) and Burn the closed loop cycle pipeline with afterheat boiler system.
  3. The CIU 3. a kind of sludge according to claim 1 is controlled oneself, it is characterised in that：The incinerator (7) is multilayer Bubbling fluidized bed incinerator, coordinate the incinerator (7) to be provided with and be arranged at incinerator (7) top for into incinerator (7) Spray into urea liquid urea warehouse (6), for the combustion adjuvant storage tank (5) of injection combustion adjuvant in incinerator (7), for institute The air line of injection air in incinerator (7) is stated, the air line is provided with air blower (3), and the air line is worn Cross the waste heat boiler (8).
  4. The CIU 4. a kind of sludge according to claim 1 is controlled oneself, it is characterised in that：The smoke processing system is successively Including electrostatic precipitator (12), charcoal absorption system, sack cleaner (14), wet scrubber tower (15), the grey Slag treatment System includes the common flying dust warehouse (10) for coordinating the electrostatic precipitator (12) to use and coordinates the sack cleaner (14) The danger wastes warehouse (11) used.
  5. The CIU 5. a kind of sludge according to claim 4 is controlled oneself, it is characterised in that：Coordinate the wet scrubber tower (15) it is provided with cleaning solution pipeline and for will be washed after the cleaning solution lifting in the wet scrubber tower (15) from the wet type Wash the detergent circulator (16) that the top of tower (15) sprays into.
  6. The CIU 6. a kind of sludge according to claim 1 is controlled oneself, it is characterised in that：Storage and delivery system is generally Negative pressure is run, and negative pressure runs extracted out gas and is passed through the incinerator (7) by pipeline.
  7. The method of work of CIU 7. a kind of sludge is controlled oneself, it is characterised in that：Sludge controls oneself CIU from front to back successively Including storage and delivery system, half-drying system, burning and afterheat boiler system, turbine generating system, smoke processing system, Ash processing system and smoke exhaust system；The storage and delivery system includes wet mud warehouse (1) and wet mud is stored up The conveying worm of storehouse (1) bottom；The half-drying system includes sludge drying machine (2) and the second conveying worm (4), described Burn and afterheat boiler system includes incinerator (7) and waste heat boiler (8), the turbine generating system includes steam turbine generator (9) electrostatic precipitator (12), charcoal absorption system, cloth bag are included successively with steam circulation pipeline, the smoke processing system Deduster (14), wet scrubber tower (15), the charcoal absorption system include activated carbon warehouse (13), and activated carbon is by activated carbon Warehouse (13) is entered in flue by spray regime to be sufficiently mixed with flue gas, and the ash processing system includes coordinating the electrostatic The danger wastes warehouse that the common flying dust warehouse (10) and the cooperation sack cleaner (14) that deduster (12) uses use (11)；The smoke exhaust system includes including smoke re-heater (17), air-introduced machine (18) and chimney (19) successively；The steaming Vapour cycle pipeline, which includes, to be sequentially connected in series the steam turbine generator (9), sludge drying machine (2) and burns and afterheat boiler system Closed loop cycle pipeline and be sequentially connected in series the steam turbine generator (9), smoke re-heater (17) and burn and waste heat boiler system The closed loop cycle pipeline of system；
    Comprise the following steps：
    Step 1：Enter wet mud warehouse (1) after outward transport sludge is weighed, the sludge in wet mud warehouse (1) is through helical feed Machine is sent into the half-drying system；The storage and delivery system entirety negative pressure operation, negative pressure are run extracted out foul smell and passed through Pipeline is passed through the incinerator (7) burning；
    Step 2：Wet mud is carried out semi-oriented processing and becomes semi-oriented sludge, sludge drying machine by the sludge drying machine (2) (2) thermal source comes from the steam in the steam circulation pipeline；
    Step 3：Semi-oriented sludge delivers into the incinerator (7) by second conveying worm (4) and burned, incinerator (7) burning is started using the combustion adjuvant by the combustion adjuvant storage tank (5) injection, stops injection after incinerator (7) normal operation Combustion adjuvant；Air needed for incinerator (7) is provided by the air blower (3) on air line and preheated through waste heat boiler (8)；Burn Stove (7) top urea warehouse (6) sprays into urea liquid and carries out SNCR method denitration；
    Step 4：High-temperature flue gas caused by incinerator (7) enters the waste heat boiler (8), and waste heat boiler (8) heats the steaming Steam in vapour cycle pipeline forms high temperature and high pressure steam, and high temperature and high pressure steam is generated electricity into steam turbine generator (9), from vapour The steam that turbine generator (9) comes out is divided into two-way as thermal source, and steam steams by the sludge drying machine (2), another way all the way Vapour passes through the smoke re-heater (17), and institute is turned again to by the burning and afterheat boiler system after then two-way steam collects Steam turbine generator (9) is stated, forms circulation；
    Step 5：Flue gas after waste heat boiler (8) utilization enters electrostatic precipitator (12) dedusting, and the dust except under is by commonly flying Grey warehouse (10) storage；Bioxin caused by sludge incineration and heavy metal are removed using charcoal absorption mode, and activated carbon is by living Property charcoal warehouse (13) entered by spray regime in flue and be sufficiently mixed with flue gas；The flue gas that carry activated carbon granule enters cloth Bag dust collector (14) dedusting again, the dust except under is by danger wastes warehouse (11) storage again；Flue gas after filtering is from wet Formula scrubbing tower (15) bottom enters, and coordinates the wet scrubber tower (15) to be provided with cleaning solution pipeline and detergent circulator (16), sprayed into after scrubbed liquid circulating pump (16) lifting of the cleaning solution of wet scrubber tower (15) bottom above scrubbing tower (15), Cleaning solution and flue gas reverse flow and carry out absorbing reaction in scrubbing tower；
    Step 6：Wet scrubber tower (15) reacted flue-gas temperature is relatively low, then logical through smoke re-heater (17) indirect heat exchange Cross air-introduced machine (18) and be discharged into chimney (19).
  8. The method of work of CIU 8. a kind of sludge according to claim 7 is controlled oneself, it is characterised in that：The sludge is done Change machine (2) outlet sludge temperature range is 100~105 DEG C, and sludge drying machine (2) emission temperature range is 98~100 DEG C, The efficiency of utilization scope of sludge drying machine (2) is 90~95%.
  9. The method of work of CIU 9. a kind of sludge according to claim 7 is controlled oneself, it is characterised in that：The sludge is done The solid content scope of the sludge of change machine (2) import is 20~25%, and the solid content scope of the sludge of sludge drying machine (2) outlet is 43~47%.
  10. The method of work of CIU 10. a kind of sludge according to claim 7 is controlled oneself, it is characterised in that：The burning Ignition temperature in stove (7) is 850~950 DEG C, and the residence time more than 850 DEG C of flue-gas temperature produced by burning is more than 2s, Incinerator (7) has 15% overload capacity.
CN201710404032.1A 2017-06-01 2017-06-01 A kind of self-holding CIU of sludge and method of work Pending CN107420915A (en)

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Cited By (11)

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CN108870400A (en) * 2018-07-17 2018-11-23 北京首创环境科技有限公司 A kind of dangerous waste incineration complexes and treatment process
CN110043909A (en) * 2019-04-21 2019-07-23 温州兴南环保科技有限公司 A kind of chemical engineering sludge burning process
CN110068013A (en) * 2019-05-29 2019-07-30 上海环境工程设计研究院有限公司 A kind of deeply de- anhydration and incineration electricity generation system of sludge
CN110104935A (en) * 2019-06-21 2019-08-09 南通欣源污泥处置科技有限公司 A kind of sludge treatment process flow
CN110242967A (en) * 2019-06-21 2019-09-17 南通欣源污泥处置科技有限公司 A kind of sludge incineration and smoke processing system and processing method
CN110606648A (en) * 2019-09-20 2019-12-24 中国联合工程有限公司 Sludge mixing drying pure combustion power generation system and working method thereof
CN110748899A (en) * 2019-11-27 2020-02-04 中国华能集团清洁能源技术研究院有限公司 Coal-fired coupled sludge drying incineration system and method considering waste heat utilization
CN110845116A (en) * 2019-11-02 2020-02-28 宁夏久瓦能源科技有限公司 Utilize cyclic utilization system of biomass steam boiler mummification mud and electricity generation
CN111439909A (en) * 2020-04-14 2020-07-24 湖南清源智造设备有限公司 Sludge dewatering, drying and incinerating cogeneration treatment system
CN113587117A (en) * 2021-07-20 2021-11-02 无锡雪浪环境科技股份有限公司 System and method for harmlessly treating sludge
CN114179035A (en) * 2021-12-31 2022-03-15 江苏海雷德蒙新能源(集团)有限公司 Cogeneration conveyor and energy storage building integration system thereof

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CN105240859A (en) * 2015-10-30 2016-01-13 大连科林能源工程技术开发有限公司 Energy-self-supplying type chemical engineering sludge drying and burning system
CN105948459A (en) * 2016-05-19 2016-09-21 山东齐盛机电工程有限公司 Method using drying and incineration to treat sludge

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CN105080310A (en) * 2015-06-18 2015-11-25 浙江铂瑞能源环境工程有限公司 Waste incineration flue gas purification system and integral solution process
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108870400A (en) * 2018-07-17 2018-11-23 北京首创环境科技有限公司 A kind of dangerous waste incineration complexes and treatment process
CN110043909A (en) * 2019-04-21 2019-07-23 温州兴南环保科技有限公司 A kind of chemical engineering sludge burning process
CN110068013B (en) * 2019-05-29 2024-03-08 上海环境工程设计研究院有限公司 Sludge deep-dewatering drying incineration power generation system
CN110068013A (en) * 2019-05-29 2019-07-30 上海环境工程设计研究院有限公司 A kind of deeply de- anhydration and incineration electricity generation system of sludge
CN110104935A (en) * 2019-06-21 2019-08-09 南通欣源污泥处置科技有限公司 A kind of sludge treatment process flow
CN110242967A (en) * 2019-06-21 2019-09-17 南通欣源污泥处置科技有限公司 A kind of sludge incineration and smoke processing system and processing method
CN110606648A (en) * 2019-09-20 2019-12-24 中国联合工程有限公司 Sludge mixing drying pure combustion power generation system and working method thereof
CN110845116A (en) * 2019-11-02 2020-02-28 宁夏久瓦能源科技有限公司 Utilize cyclic utilization system of biomass steam boiler mummification mud and electricity generation
CN110748899A (en) * 2019-11-27 2020-02-04 中国华能集团清洁能源技术研究院有限公司 Coal-fired coupled sludge drying incineration system and method considering waste heat utilization
CN111439909B (en) * 2020-04-14 2022-07-15 湖南清源智造设备有限公司 Sludge dewatering, drying and incinerating cogeneration treatment system
CN111439909A (en) * 2020-04-14 2020-07-24 湖南清源智造设备有限公司 Sludge dewatering, drying and incinerating cogeneration treatment system
CN113587117A (en) * 2021-07-20 2021-11-02 无锡雪浪环境科技股份有限公司 System and method for harmlessly treating sludge
CN113587117B (en) * 2021-07-20 2024-03-19 无锡雪浪环境科技股份有限公司 System and method for innocent treatment of sludge
CN114179035A (en) * 2021-12-31 2022-03-15 江苏海雷德蒙新能源(集团)有限公司 Cogeneration conveyor and energy storage building integration system thereof

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