CN107216916B - A kind of solid refuse plasma gasification pyrolysis recycle method for transformation - Google Patents
A kind of solid refuse plasma gasification pyrolysis recycle method for transformation Download PDFInfo
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- CN107216916B CN107216916B CN201710601877.XA CN201710601877A CN107216916B CN 107216916 B CN107216916 B CN 107216916B CN 201710601877 A CN201710601877 A CN 201710601877A CN 107216916 B CN107216916 B CN 107216916B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
- C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/20—Purifying combustible gases containing carbon monoxide by treating with solids; Regenerating spent purifying masses
- C10K1/30—Purifying combustible gases containing carbon monoxide by treating with solids; Regenerating spent purifying masses with moving purifying masses
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0983—Additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/123—Heating the gasifier by electromagnetic waves, e.g. microwaves
- C10J2300/1238—Heating the gasifier by electromagnetic waves, e.g. microwaves by plasma
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
Abstract
The invention discloses a kind of solid refuse plasma gasification pyrolysis recycle method for transformation, belong to technical field of waste treatment, it mainly include garbage sorting pretreatment, four plasma gasification cracking, gas purification and energy regeneration steps, the average aggregate calorific value of solid refuse is improved by the method for adding combustion-supporting mixture and fixes carbon amounts, the power consumption in plasma gasification cracking process is reduced with this, simultaneously and later period a part of even all of electric energy is offset in power station linkage, reduces its operation cost.Dioxin restraining agent is sprayed using impulse electromagnetic valve, prevents dioxin compound in low-temperature space, cooperates the thorough purification gas of the filtering adsorpting device in later period, the residue for generation of finally gasifying can make fine-celled foam glass as adsorbing medium, realize recycling for resource.Recovery utilization rate of the present invention is high, discharges without toxic gas and substance, environmentally protective, economic benefit is good.
Description
Technical field
The present invention relates to technical field of waste treatment, and in particular to a kind of solid refuse plasma gasification pyrolysis recycle conversion
Method.
Background technique
Domestic rubbish disposal mode in China's is mainly filled and is burned.Landfill not only occupy a large amount of soils, also impurely under
Water is the selection done something against one's will.Nevertheless, being not much place for the area of shortage of land resource for landfill
It uses.Although incineration method volume reduction ratio is high, and can recover energy, because the pollution problems such as dioxin are strongly opposed to by the public,
It is badly in need of environmentally protective, the energy-saving substitution incineration technology of development a new generation.
Plasma is the 4th state of substance, have it is many different from solid-state, liquid and gaseous unique physicochemical properties,
Such as temperature and energy density are all very high, electrically conductive and luminous, chemical property is active and can reinforce chemical reaction, and environmental-protecting performance is excellent
It is good.
Plasma waste processing technique starts from initial stage in the 1970's, and it is military to be initially mainly used for cool waste, chemistry
Device and conventional weapon are destroyed, and are entered in generation nineteen ninety civilian.Since plasma apparatus is with high content of technology, huge, operation is invested
It is at high cost, it is chiefly used in the hazardous wastes such as destruction Polychlorinated biphenyls (PCBs), POPs, useless pesticide, flying ash and clinical waste.Nearly ten
Nian Lai, with the development of technology, cost are gradually controlled, and attention and Public environmental attitude of the government to garbage disposal problem
Raising, the technology of corona treatment house refuse is increasingly becoming research hotspot both domestic and external.
The unit that plasma waste Processing Technology Research is engaged in the whole world at present has more than 20 families, and technology is also in commercialization
Threshold stage, majority be not up to practical stages.At this stage used technology be all using plasma torch to rubbish into
The direct high-temperature gasification of row, up to 7000 DEG C of plasma is generated by arc discharge, rubbish is heated to very high temperature,
To quickly and effectively destroy waste.Flammable organic principle sufficiently cracks gasification, is converted to imflammable gas, can be used for sending out
Electricity or as combustible gas, commonly referred to as " synthesis gas " (main component is CO+H2).Non-flammable inorganic constituents is through plasma height
Become harmless slag body after temperature processing.
However still there are many shortcomings for plasma refuse gasification technology at this stage, firstly, direct with plasma torch
Gasification rubbish needs greatly power, consumption rate to cause to transport up to the 30%~45% of its electricity generation ability, since power consumption is excessively high
Battalion's cost greatly increases, it is made not have the value of comercial operation.The rubbish second, this method gasifies, although compared to energy is burned
Effectively remove a large amount of dioxin, but in fact synthetic gas condense during again can by a small amount of dioxin hydrogen chloride work
It is compound under, cause the gas finally generated that cannot be referred to as innocuous gas completely.
Summary of the invention
Against the above technical problems, the present invention provides a kind of solid refuse plasma gasification pyrolysis recycle method for transformation.
The technical solution of the present invention is as follows: a kind of solid refuse plasma gasification pyrolysis recycle method for transformation, it is specific comprising with
Lower step:
(1) garbage sorting pre-processes: having the rubbish of recovery value manually to sieve greater than 30cm size in solid refuse and picks
Come, remaining small size solid refuse isolates metallics by being vortexed magnetic separator with the speed of 0.5-1.2m/s using conveyer belt
And nonmetallic substance, nonmetallic substance is broken into the solid particle that partial size is 1-3cm, the solid particle warp by crusher
Extruder incremental extrusion is 20cm at diameter, and length is the cylindric material block of 30cm；
(2) plasma gasification cracks: the cylindric material block enters the preheating zone of plasma gasification furnace, by material block drying
To water content less than 10%, the combustion-supporting mixture that investment mass ratio is 10-30% is not less than the synthesis calorific value of material for dehydration
3000kcal/kg, fixed carbon amounts are not less than 12%, and into the pyrolysis zone of plasma gasification furnace, the temperature in plasma pyrolysis area is
5000-7000 DEG C, then collect synthesis gas and residue that cracking generates；
(3) two gas purification: are sprayed into pipeline by high-pressure powder sprinkler in the synthesis gas condensation process
English inhibitor is disliked, to prevent dioxin compound in low-temperature space, the fountain height of the dioxin restraining agent is 100-200g/m3, then
Filtering adsorpting device through the pipe end absorbs and filter a small amount of pernicious gas, obtains the decontaminating syngas body of CO, H2, CH4；
(4) energy regeneration: carrying out separation packing for purified synthetic gas, recycles as clean energy resource, will be described
Residue is ground into the Nano glass powder or addition foaming agent, additive system that partial size is 200-300nm after being cooled to room temperature (25 DEG C)
It is made the foamed glass that micropore diameter gap is 0.3-3mm.
Further, vortex magnetic separator described in step (1) is mainly screened containing ferromagnetic metal and copper aluminium nonmagnetic metal,
For magnetic system magnetic field strength in 200-2500Gs, vortex magnetic separation is more superior compared to single magnetic separation performance, can filter out 60% or more
The useless magnetic metal such as copper aluminium so that recovery utilization rate improves, while also avoiding metal from absorbing heat excessively to expend electric energy.
Further, plasma gasification furnace described in step (2) is mating has generating equipment, and the generating equipment utilizes
The clean energy resource gas that ion gasification furnace gas cracks out generates electricity, and generated electric energy instead supplies back plasma gasification furnace again,
The clean energy resource gas can be generated electricity or be sold, that is, the deficiency for compensating for the high power consumption of plasma gasification furnace is also protected
Environment, while can also additional income.
Further, combustion-supporting mixture described in step (2) is by the material composition of following parts by weight: 40-60 parts of coke,
20-25 parts of sawdusts, 30-35 parts of stalks, 20-30 parts of rice husks, 5-7 parts of adhesives, 8-10 portions of combustion adjuvants, add combustion-supporting mixture
Purpose is accelerated to decompose, reduces power consumption to improve the synthesis calorific value of solid refuse and fixed carbon amounts.
Further, dioxin restraining agent described in step (3) be by 20-30 parts of calcium oxide, 15-18 parts of calcium hydroxides,
21-26 parts of sodium bicarbonates, 10-13 parts of bentonites, 7-9 parts of plant fibers, 6-8 parts of animal bone powders or shell powder composition, by above-mentioned group
100-120 mesh powder, the entrance that the dioxin restraining agent passes through in synthetic gas are ground into after the drying of point material mixing
Start to spray, in order to which eliminating the hydrogen chloride gas mixed prevents from luring that dioxin is compound in low-temperature space into.
Further, high-pressure powder sprinkler described in step (3) carries out sprinkling two using impulse electromagnetic valve compressed air
English inhibitor powder is disliked, the pulse frequency of impulse electromagnetic valve is 20-30HZ, and 5-10s is divided between spraying time, and pulse sprinkling is controllable
Time processed and fountain height are achieving the goal while material saving.
Further, filtering adsorpting device described in step (3) is divided into miillpore filter layer and absorptive media layers, the micropore
For filter membranous layer in the top of the absorptive media layers, the preferred miillpore filter layer is described using polyamide miillpore filter
It is lined with the nylon wire that aperture is 80-100 mesh under miillpore filter to support, the absorptive media layers are by active carbon and fine-celled foam glass
It is that 1:1 is formed with weight ratio, the fine-celled foam glass can be prepared by the residue, and miillpore filter main filtration falls to make
Used dioxin restraining agent powder, a small amount of remaining toxic gas of adsorbent medium filtering, the synthesis gas after being purified
Body.
Further, the polyamide miillpore filter is first impregnated with distilled water or deionized water tow sides using preceding
5-10min is cleaned, it is then (reflective weak to reverse side from miillpore filter positive (reflective strong one side) with distilled water or deionized water
Pre-filtering 3-5 times on one side).
Further, integration apparatus used in the method mainly by vortex magnetic separator, crusher, extruder,
Plasma gasification furnace, synthesis gas condensing unit, filtering adsorpting device, gas fractionation unit, grinding device, foamed glass manufacturing district
Composition, the discharge port of the vortex magnetic separator be connected to the feed inlet of the crusher, and the discharging of the crusher is connected to
The feed inlet of the extruder, the discharge port of the extruder is connected to the material inlet of the plasma gasification furnace, described etc.
Ion gasification furnace is divided into the preheating zone of plasma gasification furnace and the pyrolysis zone of plasma gasification furnace, the plasma gasification furnace it is pre-
Hot-zone is located at the top of plasma gasification furnace, and communicates with the material inlet, and the pyrolysis zone of the plasma gasification furnace is located at
The lower part of plasma gasification furnace is set there are two fuel inlet above the pyrolysis zone of the plasma gasification furnace, described etc.
It is equipped with heating device in the pyrolysis zone of ion gasification furnace, gas access, the heating device are connected on the heating device
Intermediate position be equipped with heat liberation board, the plasma gasification furnace upper right portion be equipped with synthetic gas export, it is described grade from
The lower left quarter of sub- gasification furnace is equipped with sludge discharge tube, and the pipeline of the synthetic gas outlet is equipped with synthesis gas condensation dress
It sets, the synthesis gas condensing unit is then connected to the filtering adsorpting device, and the filtering adsorpting device is then connected to the gas
Body separator, the sludge discharge tube are connected to the grinding device, and grinding device is then connected to the foamed glass manufacture
Area.
Compared with prior art the invention has the benefit that the present invention filters out most of metal using vortex magnetic separator
Substance improves energy consumption when recovery utilization rate in turn avoids Metal gasification, is improved by the method for adding combustion-supporting mixture solid
The average aggregate calorific value of body rubbish and fixed carbon amounts reduce required thermal energy with this to reduce plasma gasification cracking process indirectly
In power consumption, while with power station link offset later period a part of even all of electric energy, its operation cost is reduced, after cooperation
Profitization can be done step-by-step in phase energy regeneration.Dioxin restraining agent is sprayed in synthesis gas pipeline using impulse electromagnetic valve, prevents two
It is compound in low-temperature space to dislike English, cooperates the thorough purification gas of the filtering adsorpting device in later period, the residue for generation of finally gasifying can make
Fine-celled foam glass realizes recycling for resource as adsorbing medium.Recovery utilization rate of the present invention is high, without toxic gas and object
Matter discharge, it is environmentally protective, economic benefit is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of integration apparatus of the present invention；
Wherein, 1- be vortexed magnetic separator, 2- crusher, 3- extruder, 4- material inlet, 5- plasma gasification furnace, 6- etc. from
The preheating zone of sub- gasification furnace, the pyrolysis zone of 7- plasma gasification furnace, 8- heating device, the gas access 9-, 10- heat liberation board, 11- are closed
At gas condensing unit, 12- filtering adsorpting device, 13- gas fractionation unit, 14- fuel inlet, 15- grinding device, 16- foaming
Glass manufacture area.
Specific embodiment
Embodiment 1:
A kind of solid refuse plasma gasification pyrolysis recycle method for transformation, comprising the following steps:
(1) garbage sorting pre-processes: having the rubbish of recovery value manually to sieve greater than 30cm size in solid refuse and picks
Come, remaining small size solid refuse isolates metallics and non-by vortex magnetic separator with the speed of 0.5m/s using conveyer belt
Nonmetallic substance is broken into the solid particle that partial size is 1cm by crusher by metallics, and the solid particle is through extruder
Incremental extrusion is 20cm at diameter, and length is the cylindric material block of 30cm；Wherein, the vortex magnetic separator mainly screens iron content
Magnetic metal and copper aluminium nonmagnetic metal, magnetic system magnetic field strength are vortexed magnetic separation more compared to single magnetic separation performance in 200Gs
It is superior, the useless magnetic metals such as 60% or more copper aluminium can be filtered out, so that recovery utilization rate improves, while also metal being avoided excessively to inhale
Heat is received to expend electric energy.
(2) plasma gasification cracks: the cylindric material block enters the preheating zone of plasma gasification furnace, by material block drying
To water content less than 10%, the combustion-supporting mixture that investment mass ratio is 10% is not less than the synthesis calorific value of material for dehydration
3000kcal/kg, fixed carbon amounts are not less than 12%, and into the pyrolysis zone of plasma gasification furnace, the temperature in plasma pyrolysis area is
5000 DEG C, then collect synthesis gas and residue that cracking generates；Wherein, the plasma gasification furnace is mating has power generation and sets
Standby, the generating equipment is generated electricity using the clean energy resource gas that plasma gasification furnace gasification cracking goes out, generated electric energy
Plasma gasification furnace instead is supplied back again, the clean energy resource gas can be generated electricity or be sold, that is, compensate for plasma gasification
The deficiency of the high power consumption of furnace also protects environment, while can also additional income.Wherein, the combustion-supporting mixture is by following heavy
Measure the material composition of part: 40 parts of coke, 20 parts of sawdusts, 30 parts of stalks, 20 parts of rice husks, 5 parts of adhesives, 8 portions of combustion adjuvants, addition help
The purpose of burning mixt is accelerated to decompose, reduces power consumption to improve the synthesis calorific value of solid refuse and fixed carbon amounts.
(3) two gas purification: are sprayed into pipeline by high-pressure powder sprinkler in the synthesis gas condensation process
English inhibitor is disliked, to prevent dioxin compound in low-temperature space, the fountain height of the dioxin restraining agent is 100g/m3, then through institute
The filtering adsorpting device for stating pipe end absorbs and filter a small amount of pernicious gas, obtains CO, H2、CH4Decontaminating syngas body；Wherein,
The dioxin restraining agent is by 20 parts of calcium oxide, 15 parts of calcium hydroxides, 21 parts of sodium bicarbonates, 10 parts of bentonites, 7 portions of plants
Fiber, 6 parts of animal bone powders or shell powder composition will be ground into 100 mesh powder, the dioxin after the drying of said components material mixing
Inhibitor starts to spray in the entrance that synthetic gas passes through, in order to which eliminating the hydrogen chloride gas mixed prevents from luring into
Dioxin is compound in low-temperature space.Wherein, the high-pressure powder sprinkler carries out sprinkling two using impulse electromagnetic valve compressed air
English inhibitor powder is disliked, the pulse frequency of impulse electromagnetic valve is 20HZ, and 5s is divided between spraying time, and the controllable time is sprayed in pulse
And fountain height, it is achieving the goal while material saving.Wherein, the filtering adsorpting device is divided into miillpore filter layer and absorption is situated between
Matter layer, the miillpore filter layer is in the top of the absorptive media layers, and the preferred miillpore filter layer is using polyamide
Miillpore filter is lined with the nylon wire that aperture is 80 mesh under the miillpore filter and supports, and the polyamide miillpore filter is using
It is preceding first to use distilled water or deionized water tow sides soaking and washing 5min, then with distilled water or deionized water from miillpore filter just
Face (reflective strong) is to reverse side (reflective weak while) pre-filtering 3 times.The absorptive media layers are steeped by active carbon and micropore
Foam glass is that 1:1 is formed with weight ratio, and the fine-celled foam glass can be prepared by the residue, the main mistake of miillpore filter
Filter used dioxin restraining agent powder, a small amount of remaining toxic gas of adsorbent medium filtering, after being purified
Synthetic gas.
(4) energy regeneration: carrying out separation packing for purified synthetic gas, recycles as clean energy resource, will be described
Residue, which is cooled to room temperature, is ground into Nano glass powder that partial size is 200nm after (25 DEG C) or addition foaming agent, additive are fabricated to
Micropore diameter gap is the foamed glass of 0.3mm.
Embodiment 2:
A kind of solid refuse plasma gasification pyrolysis recycle method for transformation, comprising the following steps:
(1) garbage sorting pre-processes: having the rubbish of recovery value manually to sieve greater than 30cm size in solid refuse and picks
Come, remaining small size solid refuse isolates metallics and non-by vortex magnetic separator with the speed of 0.8m/s using conveyer belt
Nonmetallic substance is broken into the solid particle that partial size is 2cm by crusher by metallics, and the solid particle is through extruder
Incremental extrusion is 20cm at diameter, and length is the cylindric material block of 30cm；Wherein, the vortex magnetic separator mainly screens iron content
Magnetic metal and copper aluminium nonmagnetic metal, magnetic system magnetic field strength are vortexed magnetic separation more compared to single magnetic separation performance in 1500Gs
Add superior, the useless magnetic metals such as 60% or more copper aluminium can be filtered out, so that recovery utilization rate improves, while also avoiding metal excessive
Heat is absorbed to expend electric energy.
(2) plasma gasification cracks: the cylindric material block enters the preheating zone of plasma gasification furnace, by material block drying
To water content less than 10%, the combustion-supporting mixture that investment mass ratio is 20% is not less than the synthesis calorific value of material for dehydration
3000kcal/kg, fixed carbon amounts are not less than 12%, and into the pyrolysis zone of plasma gasification furnace, the temperature in plasma pyrolysis area is
6000 DEG C, then collect synthesis gas and residue that cracking generates；Wherein, the plasma gasification furnace is mating has power generation and sets
Standby, the generating equipment is generated electricity using the clean energy resource gas that plasma gasification furnace gasification cracking goes out, generated electric energy
Plasma gasification furnace instead is supplied back again, the clean energy resource gas can be generated electricity or be sold, that is, compensate for plasma gasification
The deficiency of the high power consumption of furnace also protects environment, while can also additional income.Wherein, the combustion-supporting mixture is by following heavy
Measure the material composition of part: 50 parts of coke, 22 parts of sawdusts, 32 parts of stalks, 25 parts of rice husks, 6 parts of adhesives, 9 portions of combustion adjuvants, addition help
The purpose of burning mixt is accelerated to decompose, reduces power consumption to improve the synthesis calorific value of solid refuse and fixed carbon amounts.
(3) two gas purification: are sprayed into pipeline by high-pressure powder sprinkler in the synthesis gas condensation process
English inhibitor is disliked, to prevent dioxin compound in low-temperature space, the fountain height of the dioxin restraining agent is 150g/m3, then through institute
The filtering adsorpting device for stating pipe end absorbs and filter a small amount of pernicious gas, obtains CO, H2、CH4Decontaminating syngas body；Wherein,
The dioxin restraining agent is by 25 parts of calcium oxide, 17 parts of calcium hydroxides, 24 parts of sodium bicarbonates, 12 parts of bentonites, 8 portions of plants
Fiber, 7 parts of animal bone powders or shell powder composition will be ground into 110 mesh powder, the dioxin after the drying of said components material mixing
Inhibitor starts to spray in the entrance that synthetic gas passes through, in order to which eliminating the hydrogen chloride gas mixed prevents from luring into
Dioxin is compound in low-temperature space.Wherein, the high-pressure powder sprinkler carries out sprinkling two using impulse electromagnetic valve compressed air
English inhibitor powder is disliked, the pulse frequency of impulse electromagnetic valve is 25HZ, and 7s is divided between spraying time, and the controllable time is sprayed in pulse
And fountain height, it is achieving the goal while material saving.Wherein, the filtering adsorpting device is divided into miillpore filter layer and absorption is situated between
Matter layer, the miillpore filter layer is in the top of the absorptive media layers, and the preferred miillpore filter layer is using polyamide
Miillpore filter is lined with the nylon wire that aperture is 90 mesh under the miillpore filter and supports, and the polyamide miillpore filter is using
It is preceding first to use distilled water or deionized water tow sides soaking and washing 7min, then with distilled water or deionized water from miillpore filter just
Face (reflective strong) is to reverse side (reflective weak while) pre-filtering 4 times.The absorptive media layers are steeped by active carbon and micropore
Foam glass is that 1:1 is formed with weight ratio, and the fine-celled foam glass can be prepared by the residue, the main mistake of miillpore filter
Filter used dioxin restraining agent powder, a small amount of remaining toxic gas of adsorbent medium filtering, after being purified
Synthetic gas.
(4) energy regeneration: carrying out separation packing for purified synthetic gas, recycles as clean energy resource, will be described
Residue, which is cooled to room temperature, is ground into Nano glass powder that partial size is 250nm after (25 DEG C) or addition foaming agent, additive are fabricated to
Micropore diameter gap is the foamed glass of 1.5mm.
Embodiment 3:
A kind of solid refuse plasma gasification pyrolysis recycle method for transformation, comprising the following steps:
(1) garbage sorting pre-processes: having the rubbish of recovery value manually to sieve greater than 30cm size in solid refuse and picks
Come, remaining small size solid refuse isolates metallics and non-by vortex magnetic separator with the speed of 1.2m/s using conveyer belt
Nonmetallic substance is broken into the solid particle that partial size is 3cm by crusher by metallics, and the solid particle is through extruder
Incremental extrusion is 20cm at diameter, and length is the cylindric material block of 30cm；Wherein, the vortex magnetic separator mainly screens iron content
Magnetic metal and copper aluminium nonmagnetic metal, magnetic system magnetic field strength are vortexed magnetic separation more compared to single magnetic separation performance in 2500Gs
Add superior, the useless magnetic metals such as 60% or more copper aluminium can be filtered out, so that recovery utilization rate improves, while also avoiding metal excessive
Heat is absorbed to expend electric energy.
(2) plasma gasification cracks: the cylindric material block enters the preheating zone of plasma gasification furnace, by material block drying
To water content less than 10%, the combustion-supporting mixture that investment mass ratio is 30% is not less than the synthesis calorific value of material for dehydration
3000kcal/kg, fixed carbon amounts are not less than 12%, and into the pyrolysis zone of plasma gasification furnace, the temperature in plasma pyrolysis area is
7000 DEG C, then collect synthesis gas and residue that cracking generates；Wherein, the plasma gasification furnace is mating has power generation and sets
Standby, the generating equipment is generated electricity using the clean energy resource gas that plasma gasification furnace gasification cracking goes out, generated electric energy
Plasma gasification furnace instead is supplied back again, the clean energy resource gas can be generated electricity or be sold, that is, compensate for plasma gasification
The deficiency of the high power consumption of furnace also protects environment, while can also additional income.Wherein, the combustion-supporting mixture is by following heavy
Measure the material composition of part: 60 parts of coke, 25 parts of sawdusts, 35 parts of stalks, 30 parts of rice husks, 7 parts of adhesives, 10 portions of combustion adjuvants, addition
The purpose of combustion-supporting mixture is accelerated to decompose, reduces power consumption to improve the synthesis calorific value of solid refuse and fixed carbon amounts.
(3) two gas purification: are sprayed into pipeline by high-pressure powder sprinkler in the synthesis gas condensation process
English inhibitor is disliked, to prevent dioxin compound in low-temperature space, the fountain height of the dioxin restraining agent is 00g/m3, then through described
The filtering adsorpting device of pipe end absorbs and filter a small amount of pernicious gas, obtains CO, H2、CH4Decontaminating syngas body；Wherein, institute
The dioxin restraining agent stated is by 30 parts of calcium oxide, 18 parts of calcium hydroxides, 26 parts of sodium bicarbonates, 13 parts of bentonites, 9 parts of plant fibres
Dimension, 8 parts of animal bone powders or shell powder composition will be ground into 120 mesh powder, the dioxin suppression after the drying of said components material mixing
Preparation starts to spray in the entrance that synthetic gas passes through, in order to which eliminating the hydrogen chloride gas mixed prevents from luring two into
It is compound in low-temperature space to dislike English.Wherein, the high-pressure powder sprinkler carries out two evil of sprinkling using impulse electromagnetic valve compressed air
English inhibitor powder, the pulse frequency of impulse electromagnetic valve are 30HZ, and 10s is divided between spraying time, and the controllable time is sprayed in pulse
And fountain height, it is achieving the goal while material saving.Wherein, the filtering adsorpting device is divided into miillpore filter layer and absorption is situated between
Matter layer, the miillpore filter layer is in the top of the absorptive media layers, and the preferred miillpore filter layer is using polyamide
Miillpore filter is lined with the nylon wire that aperture is 100 mesh under the miillpore filter and supports, and the polyamide miillpore filter is using
It is preceding first to use distilled water or deionized water tow sides soaking and washing 10min, then use distilled water or deionized water from miillpore filter
Front (reflective strong) is to reverse side (reflective weak while) pre-filtering 5 times.The absorptive media layers are by active carbon and micropore
Foam glass is that 1:1 is formed with weight ratio, and the fine-celled foam glass can be prepared by the residue, and miillpore filter is main
Filter out used dioxin restraining agent powder, a small amount of remaining toxic gas of adsorbent medium filtering, after being purified
Synthetic gas.
(4) energy regeneration: carrying out separation packing for purified synthetic gas, recycles as clean energy resource, will be described
Residue, which is cooled to room temperature, is ground into Nano glass powder that partial size is 300nm after (25 DEG C) or addition foaming agent, additive are fabricated to
Micropore diameter gap is the foamed glass of 3mm.
Integration apparatus used in above 3 embodiments, as shown in Figure 1, mainly by vortex magnetic separator 1, crusher
2, extruder 3, plasma gasification furnace 5, synthesis gas condensing unit 11, filtering adsorpting device 12, gas fractionation unit 13, grinding dress
15, foamed glass manufacturing district 16 composition is set, the discharge port of vortex magnetic separator 1 is connected to the feed inlet of crusher 2, crusher 2
It having discharged and has been connected to the feed inlet of extruder 3, the discharge port of extruder 3 is connected to the material inlet 4 of plasma gasification furnace 5, etc.
Ion gasification furnace 5 divides the preheating zone 6 for plasma gasification furnace and the pyrolysis zone 7 of plasma gasification furnace, plasma gasification furnace it is pre-
Hot-zone 6 is located at the top of plasma gasification furnace 5, and communicates with material inlet 4, the pyrolysis zone 7 of plasma gasification furnace be located at it is equal from
The lower part of sub- gasification furnace 5 is set there are two fuel inlet 14 in the top of the pyrolysis zone of the plasma gasification furnace 7, in plasma
It is equipped with heating device 8 in the pyrolysis zone 7 of gasification furnace, gas access 9, the middle part of heating device 8 are connected on heating device 8
Position is equipped with heat liberation board 10, exports in the upper right portion of plasma gasification furnace 5 equipped with synthetic gas, on a left side for plasma gasification furnace 5
Lower part is equipped with sludge discharge tube, and the pipeline of synthetic gas outlet is equipped with synthesis gas condensing unit 11, and synthesis gas condensing unit is again
It is connected to filtering adsorpting device 12, filtering adsorpting device 12 is then connected to gas fractionation unit 13, and sludge discharge tube, which is connected to, to be ground
Mill apparatus 15, grinding device 15 are then connected to foamed glass manufacturing district 16.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (1)
1. a kind of solid refuse plasma gasification pyrolysis recycle method for transformation, which is characterized in that comprising the following steps:
The pretreatment of step (1) garbage sorting: there is the rubbish of recovery value manually to sieve greater than 30cm size in solid refuse and pick
Come, remaining small size solid refuse isolates metallics by being vortexed magnetic separator with the speed of 0.5-1.2m/s using conveyer belt
And nonmetallic substance, nonmetallic substance is broken into the solid particle that partial size is 1-3cm, the solid particle warp by crusher
Extruder incremental extrusion is 20cm at diameter, and length is the cylindric material block of 30cm；
The cracking of step (2) plasma gasification: the cylindric material block enters the preheating zone of plasma gasification furnace, by material block drying
To water content less than 10%, the combustion-supporting mixture that investment mass ratio is 10-30% is not less than the synthesis calorific value of material for dehydration
3000kcal/kg, fixed carbon amounts are not less than 12%, and into the pyrolysis zone of plasma gasification furnace, the temperature in plasma pyrolysis area is
5000-7000 DEG C, then collect synthesis gas and residue that cracking generates；
Step (3) gas purification: two are sprayed into pipeline by high-pressure powder sprinkler in the synthesis gas condensation process
English inhibitor is disliked, the fountain height of the dioxin restraining agent is 100-200g/m3, then the filtering absorption dress through the pipe end
The a small amount of pernicious gas of adsorption filtration is set, CO, H are obtained2、CH4Decontaminating syngas body；
Step (4) energy regeneration: carrying out separation packing for purified synthetic gas, recycles as clean energy resource, will be described
Residue, which is cooled to room temperature, is ground into Nano glass powder that partial size is 200-300nm after (25 DEG C) or addition foaming agent is fabricated to micropore
Diameter gap is the foamed glass of 0.3-3mm；
Vortex magnetic separator described in step (1) is mainly screened containing ferromagnetic metal and copper aluminium nonmagnetic metal, magnetic system magnetic field strength
In 200-2500Gs；
Plasma gasification furnace described in step (2) is mating to have generating equipment, and the generating equipment utilizes plasma gasification furnace gas
Change the clean energy resource gas cracked out to generate electricity, generated electric energy instead supplies back plasma gasification furnace again；
Combustion-supporting mixture described in step (2) is by the material composition of following parts by weight: 40-60 parts of coke, 20-25 parts of sawdusts,
30-35 parts of stalks, 20-30 parts of rice husks, 5-7 parts of adhesives, 8-10 portions of combustion adjuvants；
Dioxin restraining agent described in step (3) is by 20-30 parts of calcium oxide, 15-18 parts of calcium hydroxides, 21-26 parts of bicarbonates
Sodium, 10-13 part bentonite, 7-9 parts of plant fibers, 6-8 parts of animal bone powders or shell powder composition, said components material mixing is dried
After be ground into 100-120 mesh powder；
High-pressure powder sprinkler described in step (3) carries out sprinkling dioxin restraining agent powder using impulse electromagnetic valve compressed air
End, the pulse frequency of impulse electromagnetic valve are 20-30HZ, are divided into 5-10s between spraying time；
Filtering adsorpting device described in step (3) is divided into miillpore filter layer and absorptive media layers, and the miillpore filter layer is described
The top of absorptive media layers, the miillpore filter layer are lined with aperture under the miillpore filter using polyamide miillpore filter
It being supported for the nylon wire of 80-100 mesh, the absorptive media layers are made of active carbon and fine-celled foam glass with weight ratio for 1:1,
The fine-celled foam glass is prepared by the residue；
Integration apparatus used in the method mainly by vortex magnetic separator (1), crusher (2), extruder (3), etc. from
Sub- gasification furnace (5), synthesis gas condensing unit (11), filtering adsorpting device (12), gas fractionation unit (13), grinding device
(15), foamed glass manufacturing district (16) form, it is described vortex magnetic separator (1) discharge port be connected to the crusher (2) into
Material mouth, the discharge port of the crusher (2) are connected to the feed inlet of the extruder (3), and the discharge port of the extruder (3) connects
It is connected to the material inlet (4) of the plasma gasification furnace (5), the plasma gasification furnace (5) is divided into the pre- of plasma gasification furnace
The preheating zone (6) of the pyrolysis zone (7) of hot-zone (6) and plasma gasification furnace, the plasma gasification furnace is located at plasma gasification furnace
(5) top, and communicated with the material inlet (4), the pyrolysis zone (7) of the plasma gasification furnace is located at plasma gasification furnace
(5) lower part, sets above the pyrolysis zone (7) of the plasma gasification furnace there are two fuel inlet (14), it is described it is equal from
Heating device (8) are equipped in the pyrolysis zone (7) of sub- gasification furnace, gas access (9), institute are connected on the heating device (8)
The intermediate position for stating heating device (8) is equipped with heat liberation board (10), is equipped with synthesis in the upper right portion of the plasma gasification furnace (5)
Gas vent is equipped with sludge discharge tube in the lower left quarter of the plasma gasification furnace (5), on the pipeline of synthetic gas outlet
Equipped with the synthesis gas condensing unit (11), the synthesis gas condensing unit is then connected to the filtering adsorpting device (12), institute
It states filtering adsorpting device (12) to be then connected to the gas fractionation unit (13), the sludge discharge tube is connected to the grinding dress
It sets (15), grinding device (15) is then connected to the foamed glass manufacturing district (16).
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| RU2741004C1 (en) * | 2020-04-24 | 2021-01-22 | Леонид Григорьевич Кузнецов | Complex for processing solid organic wastes |
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| CN110878223B (en) * | 2019-11-05 | 2021-03-23 | 安徽香杨新能源科技发展股份有限公司 | Biomass gas high-efficiency gasification device |
| CN112430477A (en) * | 2020-11-27 | 2021-03-02 | 西安交通大学 | Low-temperature plasma coal or biomass gasification system and method |
| CN114165792B (en) * | 2021-12-09 | 2023-06-16 | 中国华能集团清洁能源技术研究院有限公司 | Device and method for utilizing waste heat of garbage incinerator slag by coupling plasma pyrolysis |
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