CN101007955A - Carbonized city garbage fuel block preparation method and its dedicated apparatus - Google Patents

Carbonized city garbage fuel block preparation method and its dedicated apparatus Download PDF

Info

Publication number
CN101007955A
CN101007955A CNA2006100165762A CN200610016576A CN101007955A CN 101007955 A CN101007955 A CN 101007955A CN A2006100165762 A CNA2006100165762 A CN A2006100165762A CN 200610016576 A CN200610016576 A CN 200610016576A CN 101007955 A CN101007955 A CN 101007955A
Authority
CN
China
Prior art keywords
temperature
heating
reactor
pyrolysis
thermal decomposition
Prior art date
Application number
CNA2006100165762A
Other languages
Chinese (zh)
Other versions
CN101007955B (en
Inventor
张兴权
Original Assignee
张兴权
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 张兴权 filed Critical 张兴权
Priority to CN200610016576A priority Critical patent/CN101007955B/en
Publication of CN101007955A publication Critical patent/CN101007955A/en
Application granted granted Critical
Publication of CN101007955B publication Critical patent/CN101007955B/en

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/133Renewable energy sources, e.g. sunlight

Abstract

The invention discloses a method for preparing fuel brick with pyrolysis and taking city waste as raw material, and it aslo relates to special device- pyrolysis retort. The invention is to thermal decompose the organic matter in city waste, produce anoxic uindirect heating condition through proper engineering technology during pyrolysis, control heating temperature, heating speed and thermal insulating time to make the organic matter in city waste form into solid carbon, and converse carbonized city waste into fuel brick.

Description

The method of carbonized city garbage fuel block preparation and specific equipment thereof
Technical field
The present invention relates to a kind ofly to utilize pyrolytic technique, adopt municipal wastes to make the method for fuel brick, the invention still further relates to the specific equipment that utilizes aforesaid method---thermal decomposition coke oven for raw material.
Background technology
There are the mankind to be engaged in the place that produces and live, just have generation of waste materials; Waste is arranged, environmental problem will take place.Along with the continuous development of human society, social productive forces improve rapidly, and industrialization and process of urbanization are also progressively accelerated.Even to this day, a lot of countries and regions, the whole world have entered into highly developed industrialization and urbanization period.What accompany therewith is: the kind of municipal wastes output and quantity are in quick growth, and the hazardness of municipal wastes is highlighting gradually.
668 in city more than existing 300,000 populations of China.About 1.5 hundred million tons of the domestic refuse of annual output, about 4.5 hundred million tons of the various industrial organic waste of output, livestock and poultry rubbish; The total quantum of output of National urban rubbish, annual up to 600,000,000 tons.And according to relevant expert estimation, every year on average also with 8% speed increase.According to the urban construction statistics annual report relevant data of announcing in August, 2004, the total various types of municipal refuse disposal areas in the whole nation are 575 now, and the refuse treatment total capacity can reach 21.9 ten thousand ton per days, can account for 13.3% of the total quantum of output of whole municipal wastess.
According to these data analyses, China still has a considerable amount of small and medium-sized cities now, on the processing means of municipal wastes, still rests on the initial period of air storage, simple and easy landfill or on-site incineration; But also truly have a considerable amount of big and medium-sized cities, on the processing means of municipal wastes, developed into the safe handling stage.It is reported that in recent years, country utilizes national debt fund to arrange to build 359 of treatment of urban garbage projects, the project investment total value is up to 24,500,000,000 yuan, and only the national debt fund input is just up to more than 80 hundred million yuan.After these treatment of urban garbage projects are built up and put into effect, can make the treatment technology level of China's municipal wastes, bring up to the quite high historical stage.
The numerous scientific workers of China are in the R﹠D process of being engaged in the treatment of urban garbage technology for a long time, through contrast, screening and progressively superseded, improvement, apply commonplace municipal wastes safe handling technology now, mainly contain Sanitary Landfill Technology, incineration treatment technology and compost treatment technology.
The shortcoming of above-mentioned technology is in particular in:
1, the main weakness of incineration treatment technology is: construction scale is big, and the construction period is long; The equipment and technology complexity, operation operation difficulty; The investment amount is big, the operation cost height; Only can adapt to the flammable municipal wastes that higher calorific value is arranged is handled, subject range is less; The serious secondary pollution that particularly produces in the burning process, difficulty of governance is big, the qualified discharge difficulty.
2, the main weakness of Sanitary Landfill Technology is: floor space is big, and the occupation of land time is long, and soil repairing and reusing probability is less; Engineering is dealt with improperly, very easily soil, water body, atmosphere is caused severe contamination, and addressing is difficulty relatively; The garbage as resource utilization ratio is extremely low.
3, the main weakness of compost treatment technology is: composting arrangement is huge, manufactures difficulty; The Technology complexity, operation control is strict; Construction period is longer, and the investment amount is bigger; Only can adapt to the labile organic compound in the municipal wastes is handled, subject range is less.
The contriver is exactly according to above-mentioned treatment of urban garbage present situation, summed up in serious analysis after the advantage and weakness of all kinds of treatment of urban garbage technical equipments of now generally applying, in conjunction with years'experiences and expertise accumulation, finish " using the research of pyrolytic technique carbonized city garbage fuel block preparation " new technology scientific research problem, finished the design that the urban refuse thermal decomposition charring furnace produces simultaneously.This technical products is the new way that realizes municipal wastes is carried out innoxious, minimizing, recycling treatment target, also is the new breakthrough to the existing treatment of urban garbage technology of generally applying; And whole investment amount is little, and the production marketing Application Areas is extensive, and the operation cost expense is not high, and economic benefit is more considerable.
Pyrolysis is meant the process to organism thermal degradation under anoxic condition.Pyrolysis is one of primitive reaction principle in the chemical science field, is used widely already in the applied science field.
In municipal wastes, contain large amount of organic matter.Organic substance in the municipal wastes can be divided into natural organic substance and artificial synthetic organic materials matter two big classes.Natural organic substance comprises: timber, rubber, protein, starch, Mierocrystalline cellulose, plant straw or the like; Artificial synthetic organic materials matter comprises: plastics, synthetic rubber, synthon or the like.The common feature of these organic substance molecular structures is in the municipal wastes: carbon is its main composition composition; And the molecular structure of these organic substances, chemical reactions such as scission of link, isomerization can both take place in high-temperature heating process, can both produce cracking again or polymeric and change; Certainly also can regulate control pyrolytic reaction condition, make the organism in the municipal wastes all form solid-state charcoal by taking the engineering means.Here it is, and we study the scientific theory foundation of carbonized city garbage fuel block preparation.
In the pyrolytic technique of practical application, the special needs because of pyrolytic reaction are also arranged, in pyrolysis reactor, feed media such as part air, oxygen or steam as vaporized chemical, make the burning of organism generation small portion.This method that not exclusively conforms to the pyrolysis definition also is a pyrolytic technique.Taking this method, is for the required heat of pyrolytic process being provided or for additional heat, simultaneously also in order to change the yield ratio of all kinds pyrolysis product, improving the output capacity of required pyrolysis product.
Hence one can see that, and the incineration technology of pyrolytic technique and fully oxygen supply, organism perfect combustion is essentially different.Burning is an exothermic process; Pyrolysis is an endothermic process.
Pyrolytic technique makes organism under the heat effect under anaerobic or approximate oxygen free condition, and chemical reactions such as scission of link, isomerization take place; After cracking or polymerization variation, finally change into material forms such as combustible gas, oil, solid-state charcoal.In this process, the potential energy source factor of being contained in the organism is recovered with material forms such as the combustible gas that changes into, oil, solid-state charcoals, becomes for ease of storage, transportation and the renewable energy resources with practical value used.
The charing municipal wastes, the scientific theory of making fuel brick is according to being: the pyrolytic technique principle in the chemical science field.
Described pyrolytic technique is under anaerobic or approximate oxygen free condition, makes organism under the heat effect, and chemical reactions such as scission of link, isomerization take place; After cracking or polymerization variation, finally change into material forms such as combustible gas, oil, solid-state charcoal.
Organic pyrolysis in the municipal wastes is a complexity, successive chemical reaction process.In reaction, comprising chemical reactions such as complicated organism scission of link, isomerization; Intermediate product in the pyrolytic process had both existed by macromole and had become small molecules, until the cracking process of gas, also existed by small molecules and aggregated into more macromolecular polymerization process.
In theory, the pyrolytic reaction process, the different sections that can progressively raise according to pyrolysis temperature are divided into four-stage substantially:
1. in low pyrolysis temperature section, be the beginning water smoking:
2. in high slightly pyrolysis temperature section, be the demethylation stage:
3. in higher pyrolysis temperature section, be to generate water to carry out step of reaction with the decomposition methyne key partly of building bridge:
4. in higher pyrolysis temperature section, be that the compounds such as polycyclic aromatic hydrocarbons that generated carry out step of reaction such as cracking again, dehydrogenation, polymerization, hydrogenation.
Concrete reaction in this stage can reduce following reaction formation:
First kind of reaction:
Second kind of reaction:
The third reaction:
The 4th kind of reaction:
The zone temperatures that progressively raises according to pyrolysis temperature is though pyrolytic reaction can be divided into above-mentioned four-stage substantially.But, in such complexity, successive chemical reaction process, owing to be subjected to influencing each other or acting on of multiple factors such as organism kind, Heating temperature, temperature rise rate, soaking time, reactor types, the real reaction process does not have fairly obvious stage, and many reactions are all carried out in intersecting mutually.
Organism in the municipal wastes, the total reaction equation in pyrolytic process can be expressed as:
From above-mentioned pyrolysis total reaction equation, can learn that the pyrolysis product of municipal wastes organism after pyrolysis has three kinds of forms: gas form, liquid form, solid form.
The composition of concrete pyrolysis product form can be expressed as follows:
Gaseous state pyrolysis product: comprise C 1-5Hydro carbons, hydrogen, CO, CO 2Or the like.
Liquid pyrolysis product: comprise C 25Hydro carbons, acetate, acetone, methyl alcohol or the like.
Solid state heat hydrolysis products: comprise solid-state charcoal, polymerization macromolecule carbon containing thing or the like.
Should be noted that especially: the organic different content type of municipal wastes, the different condition of pyrolytic reaction all can influence the pyrolytic reaction process; Therefore cause the form and the component proportions of pyrolysis product, all very big difference will be arranged.
Summary of the invention
The technical problem to be solved in the present invention is the organic substance of using in the pyrolytic technique thermal degradation municipal wastes, in the pyrolytic reaction process, by appropriate engineering means, make anoxic indirect heating condition, controlling factors such as strict control Heating temperature, temperature rise rate and soaking time, make the carbon in the organic substance in the municipal wastes form solid-state charcoal, municipal wastes after the charing is transformed make fuel brick.
The present invention is achieved by the following technical programs:
The present invention is according to the organic substance pyrolytic technique theory in the chemical science field, take to create the equipment thermal decomposition coke oven of engineering means and independent research, organic substance and combustiblesubstance to municipal wastes carry out the pyrolysis charring processing, manufacture fuel brick, and alternative raw coal becomes the renewable energy resources.
The independent research equipment thermal decomposition coke oven that pyrolysis charring treating processes of the present invention is adopted comprises furnace shell, the steel plate basis, the refractory heat-insulating thermal insulation layer, electrical heating element, transmitter, reactor, helical stir is turned over and is smash device, driving mechanism, bell, automatically handle the control indicating system, the basis is installed, described furnace shell liner is with the refractory heat-insulating thermal insulation layer, outside the refractory heat-insulating thermal insulation layer, be laid with electrical heating element, and link with transmitter in the reactor, its furnace shell, the refractory heat-insulating thermal insulation layer, electrical heating element, bell and the steel plate basis that is provided with below constitute the furnace shell main body, the furnace shell main body connects mutually with the installation basis, the inside of described furnace shell main body is provided with reactor, the close gap of reserving between furnace shell main body and the reactor, helical stir is turned over and is smash the inside that device is arranged on reactor, turns over to smash in helical stir to be provided with driving mechanism below the device.
Described furnace shell is designed to open type drum shape, and the furnace shell lower end is connected with the steel plate basis, and open type is helped in the design of furnace shell upper end, closes by the full open formula drum furnace cap seal on the reactor.
Described reactor be designed to can full open also can enclosed drum shape, reactor top is a full open formula cydariform bell, the joining venting port in air suction inlet with the smoke gas treatment system of band gas locking device is housed on the bell, the reactor lower end is designed to cone-shaped, have discharge port in the reactor bottom, transmitter is set at the adaptation position in the reactor, links with automatic manipulation control indicating system and electrical heating element.
Described helical stir is turned over and is smash device and be made of steel shaft and screw-blade, be installed in the reactor, and be connected and fixed in reactor by bracing frame, helical stir is turned over the axle lower end of smashing device, link with the driving mechanism that is installed in the reactor outside, described driving mechanism is made up of parts such as electric motor, speed reduction unit, driving master wheels.
What described automatic manipulation control indicating system was selected outfit is that computer is handled the control indicating system automatically, can be by the standard pyrolysis environment of using the pyrolysis Technology Need and the sequence of control and the operating parameter of controllable reaction condition setting, various mechanical, electrical, the liquid workpiece element of unified operation regulation and control thermal decomposition coke oven, finish the instruction of setting, finish being shown as the typewriting record simultaneously.
The method that charing municipal wastes of the present invention is made fuel is to realize that by four processing steps such as sorting process, pyrolysis charring processing, batching stir process, moulding oven dry processing particular content is as follows:
Sorting process:
A, by strict sorting process, reject inorganic substance such as the masonry that contains in the urban original rubbish, dregs ground, glass, pottery, metal;
B, by strict sorting process, reject the plastics class artificial synthetic organic materials matter that contains in the urban original rubbish;
Its concrete steps are:
(1), urban original rubbish sent into picks up sortation conveyor, on picking up sortation conveyor, the bulk metal and the danger wastes that are mixed in the urban original rubbish are sorted out with manual method;
(2), will pulverize average powder particle diameter≤40mm through the urban original rubbish after workman's sorting in sending in the pulverizer of footpath;
(3), urban original rubbish that will be after crushed sends in the magnetic grader, the metal that contains in the urban original rubbish is sorted out;
(4), will send in the drum-type airflow separator through the urban original rubbish after the magnetic separation, utilize various materials different principle of settling velocity under the effect of grade amount air-flow, inorganic substance such as containing greater density and greater weight masonry, dregs, glass, pottery in the urban original rubbish are sorted out;
(5), will be through having rejected the municipal wastes behind the heavy inorganic substance, send in the horizontal airflow separator, utilize various materials different principle of settling velocity under the effect of grade amount air-flow, light sorting substances such as the plastics that contain in the municipal wastes, paper, fabric are come out;
(6), through after the above-mentioned strict sorting process, organic substance, the combustiblesubstance of having rejected in the municipal wastes of masonry, dregs ground, glass, pottery, metal, plastics class material are sent in the thermal decomposition coke oven by " endless belt conveyor ", carry out pyrolysis charring and handle.
Pyrolysis charring is handled
Urban original rubbish the pyrolysis charring processing is carried out in later being suitable for through strict sorting process organic substance and combustiblesubstance, process " endless belt conveyor " is packed into after the thermal decomposition coke oven, whole pyrolysis charring reaction treatment processes, all closed operation is finished in thermal decomposition coke oven, all changes into solid carbon at last;
Described pyrolysis charring treating processes is to adopt above-mentioned thermal decomposition coke oven, according to the pyrolytic technique theory, utilizes the indirect heating mode to realize that the urban refuse thermal decomposition charing produces solid carbon in anaerobic environment;
The Heating temperature of charing, temperature rise rate and soaking time are set during pyrolysis:
(1), Heating temperature:
The initial furnace temperature of the charging of pyrolysis charring, take season normal temperature or preceding furnace discharge after the charging of surplus temperature, its Heating temperature designs four temperature sections altogether;
First section of heating: surplus temperature behind season normal temperature or the preceding furnace discharge, maximum heating temperature reaches 250 degree ± 15 degree;
Second section of heating: since first section top temperature 250 degree of heating, maximum heating temperature reaches 480 degree ± 10 and spends;
The 3rd section of heating: since second section top temperature 480 degree of heating, remaining on 480 degree ± 18, to spend on the equilibrium temperature lines long period constant;
The 4th section of heating: since the 3rd section top temperature 480 degree of heating, take outage to stop heating, lean on the naturally cooling mode progressively to lower the temperature; Treat that the thermal decomposition material temperature is come out of the stove after reducing to below 140 degree in the stove;
(2), temperature rise rate:
The temperature rise rate of thermal decomposition coke oven, design has between two heating zones altogether;
Between first heating zone: heat in the section first, surplus temperature behind season normal temperature or the preceding furnace discharge rapidly was elevated to 250 degree to Heating temperature with very fast temperature rise rate at 30 minutes in the clock time, temperature rise rate be 7.5 degree/minute ± 0.3 degree/minute;
Between second heating zone: heat in the section second, heat section with high-temperature 250 degree since first, in 90 fens clock times,, Heating temperature is elevated to 480 degree with temperature rise rate more slowly, temperature rise rate be 2.56 degree/minute ± 0.2 spend/minute;
(3), soaking time:
The soaking time of pyrolysis charring, design keep stablizing 120 minutes ± 20 minutes on the temperature line of ceiling value 480 degree of Heating temperature;
Municipal wastes organic substance and combustiblesubstance, the solid carbon that in thermal decomposition coke oven, after pyrolysis charring is handled, changes into, the blocky solid-state form of powdered or middle particle diameter, calorific value 〉=4800 kilocalories, grey deal≤3%, moisture content amount≤0.9%;
The batching stir process
Batching stir process concrete steps are as follows:
(1), will by " worm conveyor ", send in the solid carbon storage bin of " electronic scale treasure " through the solid carbon that obtains after the pyrolysis charring processing;
(2), will make required various the adding materials of fuel brick, comprising: fine coal powder, chemical ignition dope, colliery powder are respectively charged in the storage bin separately of " electronic scale treasure ";
(3), by " electronic scale treasure ", by making the needed whole groups of material formula proportions of fuel brick, respectively solid carbon, above-mentioned various adding materials are carried out Weighing;
(4), by " mix machine ", to through various groups of material after the electronic-weighing metering, carry out compositions such as blending, stirring and mix.
(5), by " stirrer ", through in composition mixed group of material, add media such as an amount of solidifying agent, water after, stir into the ooze shape group material that is suitable for moulding, and then, send into the moulding baking operation and carry out moulding oven dry processing by " endless belt conveyor ".
The moulding oven dry is handled
The concrete steps that the moulding oven dry is handled are:
(1), will send in " hydraulic forming machine " of moulding baking operation through being suitable for the ooze shape group material of moulding after the batching stir process;
(2), by " hydraulic forming machine ", according to the requirement of different user, the ooze shape group material that is suitable for moulding, extrusion molding to fuel brick shape, size;
(3), by " drying conveyor ", the fuel brick of extrusion molding, the process of outwards carrying from hydraulic forming machine, adopt the hybrid technology means of ventilation heating, drying,, carry out drying and shaping and handle the fuel brick of extrusion molding, it can be gained in strength, be convenient to the keeping transportation.And then directly send into the finished product storehouse, deposit and treat pin.
The group material formula proportion of described manufacturing fuel brick determines that method according to different users such as heat supply, generating, brickmaking, cement, to the different needs of required calorific value of fuel and combustioncharacteristics, determines the minimum calorific value of the required fuel of different user;
Test out the unit weight calorific value of making the used various groups of material of fuel brick respectively with " oxygen bomb calorimetric instrument ";
According to the minimum calorific value of the required fuel of different user, with " ratio summation " method, calculate the used various groups of weight that material should be allocated into respectively in fuel brick, and realize the cost maximizing the benefits.
Positively effect of the present invention is:
1, use pyrolytic technique, the charing municipal wastes manufactures fuel brick, and alternative raw coal becomes the renewable energy resources, is the scientific and technological new results with novelty, creativeness and practicality.Adopt these scientific and technological new results to handle municipal wastes, with the common Sanitary Landfill Technology of applying, incineration treatment technology, compost treatment technology are compared now both at home and abroad, at aspects such as construction investment amount, engineering reliability, processing safety, the synchronous difficulty of governance of secondary pollution, investment risks, particularly, obvious advantages is arranged all in directions such as resource utilization degree, operation economic benefits.
2, handle the application of field in newly-built urban refuse thermal decomposition charing.
Use the pyrolysis technical know-how, the charing municipal wastes manufactures fuel brick, and it is new technology scientific payoffss that the replacement fire coal becomes the renewable energy resources; The core technology of realization new technology is equipped---and the urban refuse thermal decomposition charring furnace is a patent of invention product with novelty, creativeness, practicality.The scientific payoffs that uses of the new technology and the special product of invention, the field is handled in newly-built urban refuse thermal decomposition charing, being the new way that realizes municipal wastes is carried out innoxious, minimizing, recycling treatment target, is the new breakthrough to the existing treatment of urban garbage technology of generally applying.The field is handled in newly-built urban refuse thermal decomposition charing, has marketing model exemplary role, has wide application prospects.
3, the application in transforming existing municipal refuse disposal area.
About 575 of the present municipal refuse disposal area of China wherein has a great deal of operation difficulty; Particularly some burning disposal field and compost treatment field, all respectively because different reasons such as the operation cost expense is too high, production marketing difficulty keep reluctantly.If can make full use of the existing installation facility in these disposal sites, introduce and use pyrolysis charring municipal wastes new technology and patent of invention product, transform existing municipal refuse disposal area, can obtain bigger repayment in many-sides such as technical progress and economic benefits, application prospect also relatively extensively.
4, the special solid organic castoff of application invention patented product individual curing.
Use the pyrolysis technical know-how, the charing organic substance is used widely in the applied science field already.Patent of invention product---thermal decomposition coke oven has possessed the various functions of independently finishing whole pyrolysis charring technology, can not only be applied to the treatment of urban garbage field, can also be more widely used; Particularly more, influence to more current quantity more greatly, the extremely difficult special solid organic castoff that finds appropriate treatment process, the comparison application prospects is more arranged.Such as, to the problems such as environment, traffic, flight safety that have a strong impact on that ubiquitous wheat rice crops straw open-air on-site incineration in central plain area's causes, if can concentrate simple pyrolysis charring to handle by the application invention patented product, will make in many ways and be benefited.
Description of drawings
Fig. 1 is the process flow diagram of carbonized city garbage fuel block preparation.
Fig. 2 is a specific equipment thermal decomposition coke oven one-piece construction synoptic diagram of the present invention.
Fig. 3 is thermal decomposition coke oven operating parameter control graphic representation of the present invention.
Embodiment
The method that charing municipal wastes of the present invention is made fuel is to realize by four processing steps such as sorting process, pyrolysis charring processing, batching stir process, moulding oven dry processing.
1, sorting process
Mainly comprise two aspect contents:
First aspect is: by strict sorting process, and inorganic substance such as the masonry that contains in the rejecting urban original rubbish, dregs ground, glass, pottery, metal.
Above-mentioned these inorganic substance all can not pyrolysis charring.If can not reject by strict sorting process, continue wrapped folder and in urban original rubbish, participate in pyrolysis processing synchronously, must increase the total quantity burden of urban original rubbish being carried out pyrolysis processing greatly, take the limited working volume of thermal decomposition coke oven; The result also must increase the pyrolysis energy consumption, reduces pyrolysis product output, improves running cost.And charing can not take place through after the pyrolysis processing in these inorganic substance yet; If continue wrapped folder in pyrolysis product, can only increase " the ash content of coal " of pyrolysis product, reduce calorific value, influence quality product.
Second aspect is: by strict sorting process, reject the plastics class artificial synthetic organic materials matter that contains in the urban original rubbish.
Plastics class artificial synthetic organic materials matter, though but be the pyrolytic organic substance, under the controllable reaction condition of the pyrolysis class charring furnace that in patent of the present invention, designs, still can not finish reactions such as dehydration, demethylation and cracking, can not form solid-state charcoal.If improve the design Heating temperature of thermal decomposition coke oven,, also can make the pyrolysis intermediate product that reactions such as cracking once more, hydrogenation, polymerization and dehydrogenation take place simultaneously though can make plastics class artificial synthetic organic materials matter generation pyrolytic reaction; And the pyrolysis product that in this pyrolysis temperature interval, produces, the overwhelming majority will occur with liquid state or gaseous form, can not form solid carbon.This result has fundamentally run counter to the intrinsic target of patent of invention.
In addition, though but these pyrolytic plastics class artificial synthetic organic materials matter through behind the high temperature pyrolysis, must produce poisonous and harmful or carcinogenic substance that hydrogenchloride, dioxin, polycyclic aromatic hydrocarbons etc. very easily cause secondary pollution; If can not reject by strict sorting process, continue wrapped folder and in municipal wastes, participate in pyrolysis processing synchronously, from design angle, must administer the engineering means of secondary pollution synchronously to the corresponding increase of thermal decomposition coke oven.Like this, just must increase the complex structure degree of thermal decomposition coke oven greatly, increase greatly and manufacture difficulty, improve manufacturing cost.
Sorting process concrete processing arrangement as follows:
(1), urban original rubbish is sent into picked up sortation conveyor.On picking up sortation conveyor, the bulk metal and the danger wastes that are mixed in the urban original rubbish are sorted out with manual method.
(2), will pulverize in the pulverizer of footpath in sending into through the urban original rubbish after workman's sorting; Average powder particle diameter≤40mm.
(3), urban original rubbish that will be after crushed sends in the magnetic grader, utilizes metal to contain magnetic principle, the metal that contains in the urban original rubbish is sorted out.The metal that obtains after sorting process can directly form the scrap metal resource product.
(4), will send in the drum-type airflow separator through the urban original rubbish after the magnetic separation, utilize various materials different principle of settling velocity under the effect of grade amount air-flow, inorganic substance such as containing greater density and greater weight masonry, dregs, glass, pottery in the urban original rubbish are sorted out.
(5), use inorganic substance such as the masonry that after sorting process, obtains, dregs ground, glass, pottery to do raw material, can select domestic manufacturing of having produced in batches unburned perforated brick suite of equipment for building for use, by engineering means such as pulverizing, batching, stirring, moulding, manufacture unburned perforated brick for building, form another kind of resource product.
(6), will be through having rejected the municipal wastes behind the heavy inorganic substance, send in the horizontal airflow separator, utilize various materials different principle of settling velocity under the effect of grade amount air-flow, light sorting substances such as the plastics that contain in the municipal wastes, paper, fabric are come out.
(7), will send into again in the electrostatic separator through the light material that obtains after the sorting, utilize the difference of various materials thermoelectric effect in charged electric field, the plastics class material that is mingled in the light material is sorted out separately.
(8), use the plastics class material that after sorting process, obtains to do raw material, select the domestic reprocessed plastic(s) particle suite of equipment of having produced in batches for use, by clean, freezing, grind, heat, decompose, regenerate, select, form another kind of resource product.
(9), will be through strict sorting process, organic substance, the combustiblesubstance of having rejected in the municipal wastes of masonry, dregs ground, glass, pottery, metal, plastics class material are sent in the thermal decomposition coke oven by " endless belt conveyor ", carry out pyrolysis charring and handle.
2, pyrolysis charring is handled
The pyrolysis charring treating processes of patent of the present invention is to adopt the equipment thermal decomposition coke oven of independent research, according to the pyrolytic technique theory, takes the engineering means created, and solid carbon is produced in the urban refuse thermal decomposition charing.
As shown in Figure 2: specific equipment thermal decomposition coke oven of the present invention comprises furnace shell 1, steel plate basis 2, refractory heat-insulating thermal insulation layer 3, electrical heating element 4, transmitter 5, reactor 6, helical stir is turned over and is smash device 7, driving mechanism 8, bell 9, automatically handle control indicating system 10, basis 11 is installed, described furnace shell 1 liner is with refractory heat-insulating thermal insulation layer 3, outside refractory heat-insulating thermal insulation layer 3, be laid with electrical heating element 4, and link with transmitter 5 in the reactor 6, its furnace shell 1, refractory heat-insulating thermal insulation layer 3, electrical heating element 4, bell 9 and the steel plate basis 2 that is provided with below constitute furnace shell main body 12, furnace shell main body 12 connects mutually with installation basis 11, the inside of described furnace shell main body 12 is provided with reactor 6, the close gap of reserving between furnace shell main body 12 and the reactor 6 13, helical stir is turned over and is smash the inside that device 7 is arranged on reactor 6, turns over to smash in helical stir to be provided with driving mechanism 8 below the device 7.
Described furnace shell 1 is designed to open type drum shape, is welded into general steel plate, and furnace shell 1 lower end is connected with steel plate basis 2, and open type is helped in the design of furnace shell 1 upper end, by 9 sealings of the full open formula cydariform bell on the reactor 6.
Described reactor be designed to can full open also can enclosed drum shape, reactor top, be designed to full open formula cydariform bell, the joining venting port in air suction inlet with the smoke gas treatment system of band gas locking device is housed on the bell, the reactor lower end is designed to cone-shaped, transmitter is set at the adaptation position in the reactor, links with automatic manipulation control indicating system and electrical heating element.Link by spiral conveyer and batching agitating procedure.
Described reactor 6 be designed to can full open also can enclosed drum shape, be welded into the corrosion-resistant stainless steel plate, convenient in order to load the pyrolysis material, reactor 6 tops are full open formula cydariform bell 9, the joining venting port 14 in air suction inlet with the smoke gas treatment system of band gas locking device is housed on the bell 9, for discharging clean, convenient, reactor 6 lower ends are designed to cone-shaped, the reactor base plate is welded into pedestal with the corrosion-resistant stainless steel plate, smash device so that turn over helical stir, the furnace shell pedestal links, have discharge port 15 in reactor 6 bottoms, transmitter 5 is set at the adaptation position in the reactor 6, links with automatic manipulation control indicating system 10 and electrical heating element 4.
Described helical stir is turned over and is smash device 7 and be welded to form by corrosion-resistant stainless steel tubular axis 16 and screw-blade 17, be installed in the reactor 6, and be connected and fixed at reactor 6 corresponding sites by bracing frame 18, helical stir is turned over axle 16 lower ends of smashing device 7 and the driving mechanism 8 that is installed in reactor 6 outsides and is linked, and described driving mechanism 8 is made up of parts such as electric motor 19, speed reduction unit 20, driving master wheels 21.
What described automatic manipulation control indicating system 10 was selected outfit is that computer is handled the control indicating system automatically, can be by the standard pyrolysis environment of using the pyrolysis Technology Need and the sequence of control and the operating parameter of controllable reaction condition setting, various mechanical, electrical, the liquid workpiece element of unified operation regulation and control thermal decomposition coke oven, finish the instruction of setting, finish being shown as the typewriting record simultaneously.
The standard pyrolysis environment design of thermal decomposition coke oven: according to the pyrolytic technique theory, the standard environmental requirement of organic substance being carried out pyrolysis charring is: the pyrolysis charring reaction of organic substance must be accepted to carry out under the indirect heating mode in anaerobic environment.
For making thermal decomposition coke oven can satisfy the pyrolysis environment requirement of this standard, on structure design, take two engineering means.
First is the reactor of preparing to carry out the municipal wastes that pyrolysis charring handles being equipped with, be designed to can full open also can fully closed drum shape.Method is: by by liquid electric shaft operating mechanism, after full open formula cydariform bell built, just can make reactor become sealed vessel, and can finish all processes of municipal wastes being carried out whole pyrolysis charrings reactions under full closeding state; The flue gas that pyrolytic reaction produces, can discharge by the venting port that is arranged on the band gas locking device that drum furnace covers, and outer the containing the oxygen air and can't enter in the reactor of reactor, like this, the municipal wastes that is contained in reactor has just possessed anoxic and has carried out environment when carrying out the pyrolysis charring reaction treatment.
Second is to be designed to the indirect heating mode of being heated by radiation being contained in the reactor type of heating of preparing to carry out the municipal wastes that pyrolysis charring handles.Method is: by being arranged on the electrical heating element heating power that thermal insulation layer lays outward, utilize the close gap of reserving between thermal insulation layer and the reactor, to reactor radiation conduction heat energy, like this, be contained in municipal wastes in the reactor when carrying out the pyrolysis charring reaction treatment, just possessed indirect heating running environment.
The controllable reaction condition of charring furnace design during pyrolysis: according to the pyrolytic technique theory, change into solid carbon after making organic substance through the pyrolysis charring reaction treatment, just must strictly control Heating temperature, three of temperature rise rate and soaking times etc. can directly influence control pyrolysis charring result's reaction conditions.
For making thermal decomposition coke oven all change into solid carbon to municipal wastes organic substance combustiblesubstance basically, when determining the various running technology parameter of thermal decomposition coke oven, according to pyrolytic technique gross data and a large amount of test-results, behind the science matching optimization, especially accurately designed the concrete numerical value of reaction conditions (seeing shown in the accompanying drawing 3) of Heating temperature, temperature rise rate and soaking time.
Heating temperature: the initial furnace temperature of the charging of thermal decomposition coke oven, take season normal temperature or preceding furnace discharge after the charging of surplus temperature.Heating temperature, design four temperature sections altogether:
First section of heating: surplus temperature behind season normal temperature or the preceding furnace discharge, maximum heating temperature reaches 250 degree (rangeability allows ± 15 degree).Select to determine using this numerical value, is that the pyrolysis material can fully thoroughly dewater because in this warm area, and can make the macromole of pyrolysis material begin to be cracked in, small molecules.
Second section of heating: from last warm area top temperature 250 degree, maximum heating temperature reaches 480 degree (rangeability allow ± 10 spend).Select to determine using this numerical value, is that state is in this warm area, during the macromole of pyrolysis material can be finished and fully be cracked into, small molecules, and can demethylation.But, in this warm area, generate water after the cracking of pyrolysis material and still can not carry out polyreaction with the decomposition methyne key partly of building bridge, more can not carry out cracking, dehydrogenation, polymerization, hydrogenation etc. once more and react again.Therefore, in this warm area, can keep the initial solid shape of pyrolysis material substantially.
The 3rd section of heating: from last warm area top temperature 480 degree, remaining on 480 degree (rangeability allow ± 18 spend) equilibrium temperature line has the long period constant.Select to determine to use this numerical value, be constant because keep stablizing Heating temperature in a long time, can guarantee not only abundant pyrolysis charring of pyrolysis material, and can keep the initial solid shape of pyrolysis material to be stablized, reach the purpose that makes municipal wastes organic substance combustiblesubstance all change into solid carbon basically.
The 4th section of heating: from last warm area top temperature 480 degree, take outage to stop heating, lean on the naturally cooling mode progressively to lower the temperature; Treat that the thermal decomposition material temperature is come out of the stove after reducing to below 140 degree in the stove.Select to determine using these data, is in order to ensure the solid carbon that has formed, can be not too high because of self temperature, and when coming out of the stove, meet oxygen or naked light and burn, cause the accident.
Temperature rise rate:
The temperature rise rate of thermal decomposition coke oven, design has between two heating zones altogether.
Between first heating zone: heat in the section first, surplus temperature behind season normal temperature or the preceding furnace discharge, rapidly Heating temperature is elevated to 250 degree with very fast temperature rise rate in 30 fens clock times, temperature rise rate is 7.5 degree/minute (rangeability allow ± 0.3 degree/minute).Select to determine use going up data, is because use very fast temperature rise rate, can make the thoroughly dehydration rapidly of pyrolysis material, and can begin demethylation step cracking, under go on foot pyrolysis charring and react the condition that lays the foundation.
Between second heating zone: heat in the section second, with high-temperature 250 degree, in 90 fens clock times,, Heating temperature is elevated to 480 spends with temperature rise rate more slowly from last warm area; Temperature rise rate is 2.56 degree/minute (rangeability allow ± 0.2 degree/minute).Select to determine to use these data, be because use temperature rise rate more slowly, can make the pyrolysis material keep initial solid shape to the full extent, as much as possible stop the pyrolysis material to produce gaseous state or liquid product appearance, so that reach the purpose that makes municipal wastes organic substance combustiblesubstance all change into solid carbon basically.
Soaking time:
The soaking time of thermal decomposition coke oven, design keep stablizing 120 minutes (rangeability allows ± 20 fens) on the temperature line of ceiling value 480 degree of Heating temperature.Select to determine using these data, is because at this moment, can make pyrolysis charring reactions such as dehydration that the pyrolysis material should take place, demethylation, cracking, can both obtain fully thoroughly carrying out; But also the initial solid shape that can make the pyrolysis material obtains abundant charing and stable.
The realization of controllable reaction condition
Thermal decomposition coke oven can directly influence the realization of control pyrolysis charring result's controllable reaction condition to three of Heating temperature, temperature rise rate and soaking times etc., be by automatic manipulation control indicating system, working element such as unified mechanical, electrical, the liquid of handling the regulation and control thermal decomposition coke oven and transmitter, indicating meter etc., concrete numerical value of reaction conditions and permission rangeability by Heating temperature, temperature rise rate and the soaking time accurately set, program and the numerical value true(-)running in accordance with regulations of instruction thermal decomposition coke oven forms the controllable reaction condition that pyrolysis charring is handled.
The insulation of thermal decomposition coke oven and thermal conduction design
The insulation of thermal decomposition coke oven and thermal conduction not only directly influence the operating mass of thermal decomposition coke oven, but also will directly influence the quality product of pyrolysis charring product.For this reason, in the structure design of thermal decomposition coke oven, take following four engineering means:
First: in the steel plate of thermal decomposition coke oven furnace shell, lining forms effective thermal insulation layer with the refractory heat-insulating lagging material of high-tech content; The heat energy that can effectively stop electrical heating element to produce conducts outside stove, improves effective utilization rate of thermal energy, guarantees the operating mass of thermal decomposition coke oven.
Second: the electrical heating element of thermal decomposition coke oven is laid in outside the thermal insulation layer, but between electrical heating element and thermal insulation layer, install the reflective insulation board of one deck high-tech content additional, after the heat energy that electrical heating element is sent passes through the reflection of reflective insulation board, can be with maximum rate to the radiation of reactor direction, so that improve the effective rate of utilization of heat energy.
The 3rd: outside thermal insulation layer, lay electrical heating element; Behind the electrical heating element heating power, can only be by the close gap of reserving between thermal insulation layer and the reactor, direct reaction device radiation conduction heat energy, make pyrolysis charring material in the reactor can be smooth and easy, quick, high-level efficiency accepts the radiant heat energy heating.
The 4th: because of the own heat conductivility of municipal wastes organism combustiblematerials that is seated in the reactor is extremely low, adds inconvenience and heat conduction gap between the pyrolysis charring material is set, cause the thermal conduction of pyrolysis charring material extremely difficult by the engineering means.For this reason, thermal decomposition coke oven in reactor design and installation helical stir turn over and smash device.Municipal wastes organic substance combustiblesubstance is being carried out in the pyrolysis charring treating processes, by being arranged on the outer driving mechanism of reactor, drive is arranged on helical stir in the reactor and turns over that to smash not stall of device moving, make the pyrolysis charring material under the screw-blade effect, can not only constantly carry out self-alignment stirs, and after reactor top can also be thus lifted to, be slipped to the integral body up-and-down movement repeatedly of bottom again along reactor wall.The engineering means of this original creation can solve the thermal energy conduction difficult problem of municipal wastes organic substance preferably, guarantee that it can accept heat energy fast in the pyrolysis charring treating processes, and all thermally equivalents fully carry out the pyrolysis charring reaction.
The operation arrangement design that pyrolysis charring is handled
Urban original rubbish the pyrolysis charring processing is carried out in later being suitable for through strict sorting process organic substance and combustiblesubstance, process " endless belt conveyor " is packed into after the thermal decomposition coke oven, whole pyrolysis charring reaction treatment processes, all closed operation is finished in thermal decomposition coke oven, all changes into solid carbon at last.Then, by discharge port solid carbon through " worm conveyor ", send into the batching agitating procedure stir process of preparing burden.
Municipal wastes organic substance and combustiblesubstance, the solid carbon that in thermal decomposition coke oven, after pyrolysis charring is handled, changes into, the blocky solid-state form of powdered or middle particle diameter; Calorific value 〉=4800 kilocalories; Ash deal≤3%; Moisture content amount≤0.9%.
Thermal decomposition coke oven has in design disposablely can seal the function of finishing whole pyrolysis charring treatment process tasks; Thermal decomposition coke oven takes single stove intermittent type take turns to feed intake process for processing mode of discharging to move in operation.
The configuration quantity of thermal decomposition coke oven, handle urban original rubbish quantity according to receiving municipal refuse disposal area day, organic substance and combustiblesubstance content ratio in the urban original rubbish, thermal decomposition coke oven designs factors such as the effective processing volume of single stove and pyrolysis charring treating processes whole working times, and the back is determined as calculated.
3, batching stir process
1) processing arrangement of batching stir process:
The solid carbon that will obtain after will handling through pyrolysis charring by " worm conveyor ", is sent in the solid carbon storage bin of " electronic scale treasure ".
With making required various the adding materials (comprising fine coal powder, chemical ignition dope, colliery powder etc.) of fuel brick, be respectively charged in the storage bin separately of " electronic scale treasure ".
By " electronic scale treasure ",, respectively solid carbon, various adding materials are carried out Weighing by making the needed whole groups of material formula proportions of fuel brick.
By " mix machine ",, carry out compositions such as blending, stirring and mix through various groups of material after the electronic-weighing metering.
By " stirrer ", through in composition mixed group of material, add media such as an amount of solidifying agent, water after, stir into the ooze shape group material that is suitable for moulding.And then, send into the moulding baking operation and carry out moulding oven dry processing by " endless belt conveyor ".
2) the group material formula proportion of making fuel brick is determined method:
According to different users such as heat supply, generating, brickmaking, cement,, determine the minimum calorific value of the required fuel of different user to the different needs of required calorific value of fuel and combustioncharacteristics;
With " oxygen bomb calorimetric instrument ", test out the unit weight calorific value of making the used various groups of material of fuel brick respectively;
According to the minimum calorific value of the required fuel of different user, with " ratio summation " method, calculate the used various groups of weight that material should be allocated into respectively in fuel brick, and realize the cost maximizing the benefits.
4, the moulding oven dry is handled
The processing arrangement that the moulding oven dry is handled is:
To send in " hydraulic forming machine " of moulding baking operation through being suitable for the ooze shape group material of moulding after the batching stir process;
By " hydraulic forming machine ", according to the requirement of different user, the ooze shape group material that is suitable for moulding, extrusion molding to fuel brick shape, size;
By " drying conveyor ", the fuel brick of extrusion molding, the process of outwards carrying from hydraulic forming machine, adopt hybrid technology means such as ventilation heating, drying,, carry out drying and shaping and handle the fuel brick of extrusion molding, it can be gained in strength, be convenient to the keeping transportation.And then directly send into the finished product storehouse, deposit and treat pin.

Claims (7)

1, a kind of charing municipal wastes is made the thermal decomposition coke oven of fuel, it is characterized in that: this thermal decomposition coke oven comprises furnace shell (1), steel plate basis (2), refractory heat-insulating thermal insulation layer (3), electrical heating element (4), transmitter (5), reactor (6), helical stir is turned over and is smash device (7), driving mechanism (8), bell (9), automatically handle control indicating system (10), basis (11) is installed, described furnace shell (1) liner is with refractory heat-insulating thermal insulation layer (3), outside refractory heat-insulating thermal insulation layer (3), be laid with electrical heating element (4), and with reactor (6) in transmitter (5) link, its furnace shell (1), refractory heat-insulating thermal insulation layer (3), electrical heating element (4), bell (9) and the steel plate basis (2) that is provided with below constitute furnace shell main body (12), furnace shell main body (12) connects mutually with installation basis (11), the inside of described furnace shell main body (12) is provided with reactor (6), close gap (13) helical stir of reserving between furnace shell main body (12) and the reactor (6) is turned over and is smash the inside that device (7) is arranged on reactor (6), turns over to smash in helical stir to be provided with driving mechanism (8) below the device (7).
2, thermal decomposition coke oven according to claim 1, it is characterized in that: described furnace shell (1) is designed to open type drum shape, furnace shell (1) lower end is connected with steel plate basis (2), open type is helped in the design of furnace shell (1) upper end, seals by the full open formula cydariform bell (9) on the reactor (6).
3, thermal decomposition coke oven according to claim 1, it is characterized in that: described reactor (6) be designed to can full open also can fully closed drum shape, reactor (6) top is a full open formula cydariform bell (9), the venting port (14) of band gas locking device is housed on the bell (9), reactor (6) lower end is designed to cone-shaped, have discharge port (15) in reactor (6) bottom, transmitter (5) is set at the adaptation position in the reactor (6), links with automatic manipulation control indicating system (10) and electrical heating element (4).
4, thermal decomposition coke oven according to claim 1, it is characterized in that: described helical stir is turned over and is smash device (7) by steel shaft (16) and screw-blade (17) formation, be installed in the reactor (6), and be connected and fixed in reactor (6) by bracing frame (18), helical stir is turned over steel shaft (16) lower end of smashing device (7), and the driving mechanism (8) outside with being installed in reactor (6) links.
5, thermal decomposition coke oven according to claim 1, it is characterized in that: what described automatic manipulation control indicating system (10) was selected outfit is that computer is handled the control indicating system automatically, can be by the standard pyrolysis environment of using the pyrolysis Technology Need and the sequence of control and the operating parameter of controllable reaction condition setting, various mechanical, electrical, the liquid workpiece element of unified operation regulation and control thermal decomposition coke oven, finish the instruction of setting, finish being shown as the typewriting record simultaneously.
6, a kind of method of carbonized city garbage fuel block preparation is characterized in that: this method realizes that by four processing steps such as sorting process, pyrolysis charring processing, batching stir process, moulding oven dry processing particular content is as follows:
Sorting process:
A, by strict sorting process, reject inorganic substance such as the masonry that contains in the urban original rubbish, dregs ground, glass, pottery, metal;
B, by strict sorting process, reject the plastics class artificial synthetic organic materials matter that contains in the urban original rubbish;
Its concrete steps are:
(1), urban original rubbish sent into picks up sortation conveyor, on picking up sortation conveyor, the bulk metal and the danger wastes that are mixed in the urban original rubbish are sorted out with manual method;
(2), will pulverize average powder particle diameter≤40mm through the urban original rubbish after workman's sorting in sending in the pulverizer of footpath;
(3), urban original rubbish that will be after crushed sends in the magnetic grader, the metal that contains in the urban original rubbish is sorted out;
(4), will send in the drum-type airflow separator through the urban original rubbish after the magnetic separation, utilize various materials different principle of settling velocity under the effect of grade amount air-flow, inorganic substance such as containing greater density and greater weight masonry, dregs, glass, pottery in the urban original rubbish are sorted out;
(5), will be through having rejected the municipal wastes behind the heavy inorganic substance, send in the horizontal airflow separator, utilize various materials different principle of settling velocity under the effect of grade amount air-flow, light sorting substances such as the plastics that contain in the municipal wastes, paper, fabric are come out;
(6), will send into again in the electrostatic separator through the light material that obtains after the sorting, utilize the difference of various materials thermoelectric effect in charged electric field, the plastics class material that is mingled in the light material is sorted out separately;
Pyrolysis charring is handled
Urban original rubbish the pyrolysis charring processing is carried out in later being suitable for through strict sorting process organic substance and combustiblesubstance, process " endless belt conveyor " is packed into after the thermal decomposition coke oven, whole pyrolysis charring reaction treatment processes, all closed operation is finished in thermal decomposition coke oven, all changes into solid carbon at last;
Described pyrolysis charring treating processes is to adopt above-mentioned thermal decomposition coke oven, according to the pyrolytic technique theory, utilizes the indirect heating mode to realize that the urban refuse thermal decomposition charing produces solid carbon in anaerobic environment;
The Heating temperature of charing, temperature rise rate and soaking time are set during pyrolysis:
(1), Heating temperature:
The initial furnace temperature of the charging of pyrolysis charring, take season normal temperature or preceding furnace discharge after the charging of surplus temperature, its Heating temperature designs four temperature sections altogether;
First section of heating: surplus temperature behind season normal temperature or the preceding furnace discharge, maximum heating temperature reaches 250 degree ± 15 degree;
Second section of heating: since first section top temperature 250 degree of heating, maximum heating temperature reaches 480 degree ± 10 and spends;
The 3rd section of heating: since second section top temperature 480 degree of heating, remaining on 480 degree ± 18, to spend on the equilibrium temperature lines long period constant;
The 4th section of heating: since the 3rd section top temperature 480 degree of heating, take outage to stop heating, lean on the naturally cooling mode progressively to lower the temperature; Treat that the thermal decomposition material temperature is come out of the stove after reducing to below 140 degree in the stove;
(2), temperature rise rate:
The temperature rise rate of thermal decomposition coke oven, design has between two heating zones altogether;
Between first heating zone: heat in the section first, surplus temperature behind season normal temperature or the preceding furnace discharge rapidly was elevated to 250 degree to Heating temperature with very fast temperature rise rate at 30 minutes in the clock time, temperature rise rate be 7.5 degree/minute ± 0.3 degree/minute;
Between second heating zone: heat in the section second, heat section with high-temperature 250 degree since first, in 90 fens clock times,, Heating temperature is elevated to 480 degree with temperature rise rate more slowly, temperature rise rate be 2.56 degree/minute ± 0.2 spend/minute;
(3), soaking time:
The soaking time of pyrolysis charring, design keep stablizing 120 minutes ± 20 minutes on the temperature line of ceiling value 480 degree of Heating temperature;
Municipal wastes organic substance and combustiblesubstance, the solid carbon that in thermal decomposition coke oven, after pyrolysis charring is handled, changes into, the blocky solid-state form of powdered or middle particle diameter, calorific value 〉=4800 kilocalories, grey deal≤3%, moisture content amount≤0.9%;
The batching stir process
Batching stir process concrete steps are as follows:
(1), will by " worm conveyor ", send in the solid carbon storage bin of " electronic scale treasure " through the solid carbon that obtains after the pyrolysis charring processing;
(2), will make required various the adding materials of fuel brick, comprising: fine coal powder, chemical ignition dope, colliery powder are respectively charged in the storage bin separately of " electronic scale treasure ";
(3), by " electronic scale treasure ", by making the needed whole groups of material formula proportions of fuel brick, respectively solid carbon, above-mentioned various adding materials are carried out Weighing;
(4), by " mix machine ", to through various groups of material after the electronic-weighing metering, carry out blending, stir composition and mix.
(5), by " stirrer ", through in composition mixed group of material, add media such as an amount of solidifying agent, water after, stir into the ooze shape group material that is suitable for moulding, and then, send into the moulding baking operation and carry out moulding oven dry processing by " endless belt conveyor ".
The moulding oven dry is handled
The concrete steps that the moulding oven dry is handled are:
(1), will send in " hydraulic forming machine " of moulding baking operation through being suitable for the ooze shape group material of moulding after the batching stir process;
(2), by " hydraulic forming machine ", according to the requirement of different user, the ooze shape group material that is suitable for moulding, extrusion molding to fuel brick shape, size;
(3), by " drying conveyor ", the fuel brick of extrusion molding, the process of outwards carrying from hydraulic forming machine, adopt the hybrid technology means of ventilation heating, drying,, carry out drying and shaping and handle the fuel brick of extrusion molding, it can be gained in strength, be convenient to the keeping transportation.And then directly send into the finished product storehouse, deposit and treat pin.
7, charing municipal wastes according to claim 6 is made the method for fuel, it is characterized in that: the group material formula proportion of described manufacturing fuel brick determines that method is according to different users such as heat supply, generating, brickmaking, cement, to the different needs of required calorific value of fuel and combustioncharacteristics, determine the minimum calorific value of the required fuel of different user;
Test out the unit weight calorific value of making the used various groups of material of fuel brick respectively with " oxygen bomb calorimetric instrument ";
According to the minimum calorific value of the required fuel of different user, with " ratio summation " method, calculate the used various groups of weight that material should be allocated into respectively in fuel brick, and realize the cost maximizing the benefits.
CN200610016576A 2006-01-26 2006-01-26 Carbonized city garbage fuel block preparation method and its dedicated apparatus CN101007955B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200610016576A CN101007955B (en) 2006-01-26 2006-01-26 Carbonized city garbage fuel block preparation method and its dedicated apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200610016576A CN101007955B (en) 2006-01-26 2006-01-26 Carbonized city garbage fuel block preparation method and its dedicated apparatus

Publications (2)

Publication Number Publication Date
CN101007955A true CN101007955A (en) 2007-08-01
CN101007955B CN101007955B (en) 2010-05-12

Family

ID=38696619

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200610016576A CN101007955B (en) 2006-01-26 2006-01-26 Carbonized city garbage fuel block preparation method and its dedicated apparatus

Country Status (1)

Country Link
CN (1) CN101007955B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212374A (en) * 2011-01-07 2011-10-12 青岛博迈斯环保技术有限公司 Carbonizing equipment and method for treating organic wastes by using same
CN102277183A (en) * 2011-07-15 2011-12-14 陈自强 High-temperature and high-pressure carbonization device in an anoxic state
CN102409166A (en) * 2010-09-26 2012-04-11 鞍钢股份有限公司 Sintering combustion improver and adding device and adding method thereof
CN102816578A (en) * 2012-07-16 2012-12-12 严大春 Method for integrative sorting and destructive distillation pyrolysis and gasification of household refuse without discharge of dioxin
CN103909085A (en) * 2014-04-12 2014-07-09 德州群峰机械制造有限公司 Integrated household garbage treatment method
CN104403716A (en) * 2014-06-25 2015-03-11 沙嫣 Method for producing biomass fuels by using garbage
CN105499254A (en) * 2015-12-29 2016-04-20 佛山市南海区晶鼎泰机械设备有限公司 Garbage volume reduction method and garbage volume reduction device
CN107597793A (en) * 2017-09-06 2018-01-19 深圳市康瑞源再生资源有限公司 A kind of compound charing recycling treatment process of rubbish
CN108906263A (en) * 2018-06-06 2018-11-30 陕西科技大学 A kind of solid life refuse crushing sorter
CN110925770A (en) * 2019-12-20 2020-03-27 湖南华仁宏顺科技有限公司 Novel organic garbage pyrolysis device and organic garbage pyrolysis method
TWI692380B (en) * 2018-11-20 2020-05-01 愛壹可生物科技有限公司 Waste treatment equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2412156Y (en) * 2000-03-22 2000-12-27 白秀坤 Smoke-less garbage treatment appts.
CN2498158Y (en) * 2001-08-29 2002-07-03 东南大学 Pyrolyzer for producing moderate gas from biological materials
CN1174816C (en) * 2001-10-24 2004-11-10 田富才 City domestic garbage treating and utilizing process without environment pollution
CN2558867Y (en) * 2002-06-18 2003-07-02 天津大学 Main reactor of household refuse pyrolysis disposal device
CN1275706C (en) * 2003-01-30 2006-09-20 天津大学 Method of making city garbage as solid fuel and its application

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102409166A (en) * 2010-09-26 2012-04-11 鞍钢股份有限公司 Sintering combustion improver and adding device and adding method thereof
CN102409166B (en) * 2010-09-26 2013-07-03 鞍钢股份有限公司 Sintering combustion improver and adding method thereof
CN102212374A (en) * 2011-01-07 2011-10-12 青岛博迈斯环保技术有限公司 Carbonizing equipment and method for treating organic wastes by using same
CN102277183A (en) * 2011-07-15 2011-12-14 陈自强 High-temperature and high-pressure carbonization device in an anoxic state
CN102816578A (en) * 2012-07-16 2012-12-12 严大春 Method for integrative sorting and destructive distillation pyrolysis and gasification of household refuse without discharge of dioxin
CN103909085A (en) * 2014-04-12 2014-07-09 德州群峰机械制造有限公司 Integrated household garbage treatment method
WO2015196502A1 (en) * 2014-06-25 2015-12-30 沙嫣 Method for manufacturing high-calorific-value, non-polluting coal from household garbage
CN104403716A (en) * 2014-06-25 2015-03-11 沙嫣 Method for producing biomass fuels by using garbage
CN105499254A (en) * 2015-12-29 2016-04-20 佛山市南海区晶鼎泰机械设备有限公司 Garbage volume reduction method and garbage volume reduction device
CN107597793A (en) * 2017-09-06 2018-01-19 深圳市康瑞源再生资源有限公司 A kind of compound charing recycling treatment process of rubbish
CN108906263A (en) * 2018-06-06 2018-11-30 陕西科技大学 A kind of solid life refuse crushing sorter
TWI692380B (en) * 2018-11-20 2020-05-01 愛壹可生物科技有限公司 Waste treatment equipment
CN110925770A (en) * 2019-12-20 2020-03-27 湖南华仁宏顺科技有限公司 Novel organic garbage pyrolysis device and organic garbage pyrolysis method

Also Published As

Publication number Publication date
CN101007955B (en) 2010-05-12

Similar Documents

Publication Publication Date Title
US4057401A (en) Methane gas process and apparatus
CN101337838B (en) Combined anaerobic fermentation process for organic solid wastes
CN101927254B (en) Comprehensive food waste treatment system and treatment method thereof
CN103958046B (en) Plasma gasification reactor with improved carbon bed and the coke demand reduced
CN105855275B (en) A kind of processing method of sludge and kitchen garbage
CN105060946A (en) Method and device for preparing fertilizer from kitchen garbage
CN102816575B (en) The device of biomass destructive distillation cracking process and process
CN100584794C (en) Method for producing porcelain granule light weight aggregate with sewage sludge
CN104744090B (en) The method and device of ecological cultivation matrix is prepared using urban waste
CN101747094B (en) Method for making organic fertilizers by processing rubbishes in biochemical way
CN102009057B (en) House refuse treatment method
CN103951153B (en) A kind of waste plastics and mud are mixed with the method and system of charcoal sorbing material
CN101503643B (en) Solid fuel for sludge anhydration
CN107022393A (en) Engineered fuel feed stock
CN107460017A (en) From industrial materials/made of biological substance or fuel
CN103204642B (en) Novel dry-process cement kiln household garbage incineration method
CN102992559A (en) Method for comprehensively utilizing anaerobic digestion and carbonization of municipal sludge
CN103706615B (en) One way of life refuse disposal system and method
CN104498098A (en) Engineered Fuel Feed Stock Useful For Displacement Of Coal In Coal Firing Plants
CN1290631C (en) Resources comprehensive treatment technology for organic waste material
CN203330098U (en) Harmless treatment and comprehensive utilization system of urban and rural solid waste
CN103934253B (en) Household garbage complete recycling harmless comprehensive processing method
CN105983567B (en) One kind life and construction refuse resource utilization process
CN102887736B (en) Method for preparing special fertilizer by treating kitchen waste, sludge and domestic waste in one machine
CN101746941A (en) Biological drying method for treating dewatered sludge of urban sewage plant

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100512

Termination date: 20120126

C17 Cessation of patent right