CN206316130U - The system for handling house refuse - Google Patents

The system for handling house refuse Download PDF

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Publication number
CN206316130U
CN206316130U CN201621307990.4U CN201621307990U CN206316130U CN 206316130 U CN206316130 U CN 206316130U CN 201621307990 U CN201621307990 U CN 201621307990U CN 206316130 U CN206316130 U CN 206316130U
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China
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pyrolysis
oil
gas
entrance
outlet
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Inventor
赵月晶
张安强
肖磊
任浩华
刘璐
蔡先明
周方远
吴道洪
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Shenwu Technology Group Corp Co Ltd
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Abstract

The utility model discloses a kind of system for handling house refuse, including:Pretreatment unit, it has house refuse entrance, inorganic refuse outlet and organic waste outlet;Revolving bed pyrolysis oven, it sequentially forms feed zone, dry section, pyrolysis zone and discharge zone along furnace bottom rotation direction, and feed zone is provided with organic waste entrance, and pyrolysis zone is provided with high-temperature oil gas outlet, and discharge zone is provided with pyrolytic carbon outlet;Oil-gas Separation clean unit, it has high-temperature oil gas entrance, purification pyrolysis gas outlet and pyrolysis oil export;CFBB, it has pyrolytic carbon entrance, pyrolysis oil-in, purification pyrolysis gas entrance and superheated steam outlet;Steam turbine generator group, it has superheated steam entrance.Pyrolysis oil present in prior art can be solved using the system and the problem of pyrolysis gas is difficult by, so that the minimizing of rubbish, innoxious and recycling treatment are truly realized, with good economic benefit.

Description

The system for handling house refuse
Technical field
The utility model belongs to solid waste resource recovery process field, specifically, and the utility model is related to processing life The system of rubbish living.
Background technology
With it is economical develop rapidly, the continuous growth of population and the increasingly raising of living standards of the people, China's life The yield of rubbish is also sharply increased, current about 200,000,000 tons of yield of Municipal Solid Waste in China year, and annual also left with 10% Right speed increases, and being caused to environment has 2/3 predicament for facing " garbage-surrounded city " in very big burden, national big city.
The conventional landfill of current garbage disposal, composting mode, which have been absorbed in, takes at a discount tired of a large amount of lands used, composting production Border, and the mode of incineration treatment of garbage can not break away from the problem of bioxin pollutes all the time.Refuse pyrolysis method can make house refuse exist Decomposed under anaerobic or anoxia condition, generation combustion gas, fuel oil, three kinds of recycling energy of solid carbon.But refuse pyrolysis Gas impurity is more, and calorific value is relatively low, complicated component, it is difficult to be utilized, while gasification gas calorific value is lower, uses and is more stranded It is difficult.
In house refuse low temperature pyrogenation be under conditions of anaerobic or anoxic, by house refuse it is preprocessed be heated to it is higher Temperature, makes the organic matter in rubbish occur pyrolysis and thermochemical study reaction, generates H2、CO、CH4Deng imflammable gas, profit The process of mixed liquor and solid product.Because pyrolysis temperature is higher, second pyrolysis generation small molecule can occur for most of pyrolysis oil Gas, the fuel gas of generation can use for pyrolysis installation heating, be that a kind of pollution is small, invest garbage disposal that is low, having returned Technology.
Existing domestic garbage pyrolysis technology generally comprises pretreatment system, pyrolysis system, oil and gas separating system and purification System etc., its subject matter existed has:(1) pyrolysis oil is difficult by, and refuse pyrolysis oil nature is complicated, corrosivity is high, viscosity It is larger, easily block pipeline, therefore need in actual motion frequent maintenance shut-downs cleaning pipeline;(2) existing house refuse heat Pyrolytic carbon obtained by solution technology also needs fluidized gasification, and complex procedures, deficiency in economic performance, initial outlay are also higher;(3) it is pyrolyzed Contain in the pyrolytic carbon obtained afterwards compared with multi-metal, it is necessary to carry out landfill disposal, it is impossible to sell, therefore subtract directly as " fuel " Quantification effect is bad, may can also bring secondary pollution;(4) existing domestic garbage pyrolysis technical products calorific value is relatively low, Er Qie great Part refuse pyrolysis factory all build meagrely-populated area in, so as to cause pyrolysis oil gas charcoal excessive using difficult, investment cost, together When also have strict demand to combustion apparatus, it is more difficult to promote.
Therefore, the technology of existing processing house refuse is further improved.
Utility model content
The utility model is intended at least solve one of technical problem in correlation technique to a certain extent.Therefore, this reality It is to propose a kind of system for handling house refuse with a new purpose, can solves to deposit in the prior art using the system Pyrolysis oil and pyrolysis gas be difficult by the problem of, so as to be truly realized the minimizing of rubbish, at innoxious and recycling Reason, with good economic benefit.
In one side of the present utility model, the utility model proposes a kind of system for handling house refuse.According to this The embodiment of utility model, the system includes:
Pretreatment unit, the pretreatment unit has house refuse entrance, inorganic refuse outlet and organic waste outlet;
In revolving bed pyrolysis oven, the revolving bed pyrolysis oven along furnace bottom rotation direction sequentially form feed zone, dry section, Pyrolysis zone and discharge zone, the feed zone are provided with organic waste entrance, and the pyrolysis zone is provided with high-temperature oil gas outlet, described Discharge zone is provided with pyrolytic carbon outlet, and the organic waste entrance is connected with organic waste outlet;
Oil-gas Separation clean unit, the Oil-gas Separation clean unit has high-temperature oil gas entrance, purification pyrolysis gas outlet With pyrolysis oil export, the outlet of the high-temperature oil gas entrance and the high-temperature oil gas is connected, it is described purify pyrolysis gas outlet with it is described Revolving bed pyrolysis oven is connected;
CFBB, the CFBB has pyrolytic carbon entrance, pyrolysis oil-in, purification pyrolysis gas Entrance and superheated steam outlet, the pyrolytic carbon entrance are connected with pyrolytic carbon outlet, the pyrolysis oil-in and the heat Solve oil export to be connected, the purification pyrolysis gas entrance is connected with the purification pyrolysis gas outlet;
Steam turbine generator group, the steam turbine generator group has superheated steam entrance, and the superheated steam enters Mouth is connected with superheated steam outlet.
Thus, handled and given birth to by using pretreatment unit according to the system of the processing house refuse of the utility model embodiment Rubbish living, can significantly reduce the moisture content in house refuse, so as to significantly improve the effect of the pyrolysis in follow-up pyrolytic process Rate, and by pre-processing the inorganic matters such as the metal and glass that can effectively remove in house refuse, fragment of brick, so as to reduce The energy consumption of follow-up revolving bed pyrolysis oven, while the value of the pyrolytic carbon subsequently produced is improved, then by the way that part is passed through Purification pyrolysis gas obtained by the processing of Oil-gas Separation purifier is supplied to revolving bed pyrolysis oven to be used as fuel, can significantly be dropped The dependence of low hot pyrolysis oven fuel to external world, and pyrolysis oven fuel cost can be reduced, while being in revolving bed pyrolysis oven Anoxybiotic environment, therefore will not produce in pyrolytic process the pollutants such as bioxin, therefore without increasing extra treatment facility, So as to reduce the processing cost of whole processing house refuse, pyrolysis gas is purified secondly by by pyrolytic carbon, pyrolysis oil and residue Direct combustion is carried out in supply to CFBB and produces superheated steam for producing high-grade electricity, on the one hand can fully be reclaimed Sensible heat and latent heat in pyrolysis oil, and a large amount of reluctant waste water will not be produced, also block asking for pipeline in the absence of pyrolysis oil Topic, on the other hand because pyrolytic carbon is loose broken, shattering process can be completed while furnace discharge is pyrolyzed from revolving bed, therefore The particle diameter of pyrolytic carbon is smaller when in into CFBB, can improve the efficiency of combustion in CFBB, and combustion A small amount of residue can be only produced after burning.Thus, pyrolysis oil present in prior art can be solved using the system and pyrolysis gas is difficult The problem of to utilize, so that the minimizing of rubbish, innoxious and recycling treatment are truly realized, with good economic effect Benefit.
In addition, can also have what is added as follows according to the system of the processing house refuse of the utility model above-described embodiment Technical characteristic:
Optional, the pretreatment unit includes sorting unit, concentration equipment, reducing mechanism and the heap filter dress being sequentially connected Put.Thus, it is possible to effectively remove the impurity in house refuse, increase the value of pyrolytic carbon, reduce containing in organic waste Water rate, reduces the energy consumption of follow-up revolving bed pyrolysis oven, obtains the less organic waste of particle diameter, improves in follow-up revolving bed pyrolysis oven It is pyrolyzed efficiency.
Optional, the Oil-gas Separation clean unit includes chilling spray equipment and purifier, and the high-temperature oil gas enters Mouth and the pyrolysis oil export are arranged on the chilling spray equipment, and the chilling spray equipment is additionally provided with cooling oil-in And pyrolysis gas outlet, the purification pyrolysis gas outlet is arranged on the purifier, and the purifier is additionally provided with pyrolysis Gas entrance, the pyrolysis gas outlet is connected with the pyrolysis gas entrance.Thus, can efficiently separate pyrolysis oil in high-temperature oil gas and The temperature of pyrolysis gas, reduction pyrolysis oil and pyrolysis gas, while because carrying out Quench spray to high-temperature oil gas using cooling oil, can avoid It is follow-up to carry out water-oil separating processing, improve the economy of processing house refuse system.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined Become substantially and be readily appreciated that, wherein:
Fig. 1 is the system structure diagram of the processing house refuse according to the utility model one embodiment;
Fig. 2 is the portion of revolving bed pyrolysis oven in the system according to the processing house refuse of the utility model further embodiment Separation structure schematic diagram;
Fig. 3 is the system structure diagram of the processing house refuse according to the utility model another embodiment;
Fig. 4 is the method stream that house refuse is handled according to the system of the processing house refuse of the utility model one embodiment Journey schematic diagram;
Fig. 5 is the method that house refuse is handled according to the system of the processing house refuse of the utility model further embodiment Schematic flow sheet;
Fig. 6 is the system structure diagram of the processing house refuse according to the utility model another embodiment.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be Mechanically connect or electrically connect;Can be joined directly together, can also be indirectly connected to by intermediary, can be two The connection of element internal or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the common skill of this area For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In one side of the present utility model, the utility model proposes a kind of system for handling house refuse.According to this The embodiment of utility model, with reference to Fig. 1, the system includes:Pretreatment unit 100, revolving bed pyrolysis oven 200, Oil-gas Separation are net Change unit 300, CFBB 400 and steam turbine generator group 500.
According to embodiment of the present utility model, there is pretreatment unit 100 house refuse entrance 101, inorganic refuse to export 102 and organic waste outlet 103, and suitable for house refuse is pre-processed, to obtain inorganic refuse and organic waste.By This, is conducive to improving the treatment effeciency of whole house refuse electricity generation system.
According to one embodiment of the present utility model, pretreatment unit 100 can include sorting unit, the magnetic being sequentially connected Screening device, reducing mechanism and heap filter device (not shown).Thus, it is possible to the impurity in house refuse is effectively removed, increase pyrolysis The value of charcoal, reduces the moisture content in organic waste, reduces the energy consumption of follow-up revolving bed pyrolysis oven, obtains particle diameter less Organic waste, improves pyrolysis efficiency in follow-up revolving bed pyrolysis oven.
Specifically, house refuse first is carried out into the bulks such as metal, glass, the fragment of brick in sorting process, removing house refuse Inorganic matter;Then magnetic separation processing is carried out, the metal impurities in house refuse is further removed, organic waste is obtained, so as to increase The value of follow-up gained pyrolytic carbon;Then pass through reducing mechanism, reduce the particle diameter of organic waste, be conducive to accelerating organic rubbish Pyrolysis of the rubbish in follow-up revolving bed pyrolysis oven;Finally, organic waste is subjected to heap filter processing, containing for organic waste can be significantly reduced Water rate, advantageously reduces the energy consumption of follow-up revolving bed pyrolysis oven, so as to reduce the processing energy consumption of whole processing house refuse system.
According to further embodiment of the present utility model, the moisture content in gained organic waste can be not higher than 40wt%. Thus, it is possible to significantly improve the pyrolysis efficiency in follow-up revolving bed pyrolysis oven.
According to embodiment of the present utility model, with reference to Fig. 1 and 2, revolving bed pyrolysis oven 200 along furnace bottom rotation direction successively Feed zone 21, dry section 22, pyrolysis zone 23 and discharge zone 24 are formed, feed zone 21 is provided with organic waste entrance 201, pyrolysis zone 23 are provided with high-temperature oil gas outlet 202, and discharge zone 24 is provided with pyrolytic carbon outlet 203, organic waste entrance 201 and organic waste Outlet 103 is connected, and suitable for organic waste being sequentially passed through into dry section and pyrolysis zone is handled, so as to obtain high-temperature oil gas and Pyrolytic carbon, and pyrolytic carbon outlet discharge of the gained pyrolytic carbon through being set in discharge zone.
Specifically, revolving bed pyrolysis oven main equipment includes revolving bed pyrolysis oven, the up and down burning of regenerative gas radiant tube The mechanism such as device and oil gas vent, discharging.Its furnace bottom is rotatable ring-shaped furnace bottom, positioned at regenerative gas radiant tube up and down In the middle of burner, heat storage type gas radiation pipe burner is arranged in annular furnace wall, and refuse pyrolysis institute is provided in the way of heat radiation The heat needed.Ring-shaped furnace bottom has tar spray equipment, regenerative gas radiant tube with upper regenerative gas radiant tube intermediate arrangement Interior flue gas completely cuts off with the atmosphere in revolving bed pyrolysis oven, and revolving bed pyrolysis oven is in anaerobic state.In pyrolysis zone end body of heater Upper end sets high-temperature oil gas to export, and to discharge the high-temperature oil gas produced during refuse pyrolysis, end bottom of furnace body sets heat Charcoal outlet is solved, to discharge refuse pyrolysis charcoal, the discharging of revolving bed pyrolysis oven uses double helix discharging machine.
According to one embodiment of the present utility model, the temperature of dry section and the temperature of pyrolysis zone are not particularly restricted, Those skilled in the art can be selected according to actual needs, according to a specific embodiment of the present utility model, dry section Temperature can be 300~400 degrees Celsius, the temperature of pyrolysis zone can be 600~900 degrees Celsius.Thus, it is possible to significantly improve The pyrolysis efficiency of organic waste.
According to embodiment of the present utility model, Oil-gas Separation clean unit 300 has high-temperature oil gas entrance 301, purification heat Vent one's spleen and export 302 and pyrolysis oil export 303, high-temperature oil gas entrance 301 is connected with high-temperature oil gas outlet 202, and purification pyrolysis gas goes out Mouth 302 is connected with revolving bed pyrolysis oven 200, and suitable for high-temperature oil gas is carried out into isolation of purified processing, to be purified pyrolysis Gas and pyrolysis oil, and the part for purifying pyrolysis gas is supplied to above-mentioned revolving bed pyrolysis oven.Thus, high temperature oil can be efficiently separated The temperature of pyrolysis oil and pyrolysis gas in gas, reduction pyrolysis oil and pyrolysis gas, improves the economy of processing house refuse system.
According to one embodiment of the present utility model, with reference to Fig. 3, Oil-gas Separation clean unit 300 can include Quench spray Shower device 31 and purifier 32, and high-temperature oil gas entrance 301 and pyrolysis oil export 303 be arranged on chilling spray equipment 31, and chilling spray equipment 31 is additionally provided with cooling oil-in 311 and pyrolysis gas outlet 312, and purification pyrolysis gas outlet 302 is set Put on purifier 32, and purifier 32 is additionally provided with pyrolysis gas entrance 321, and pyrolysis gas outlet 312 enters with pyrolysis gas Mouth 321 is connected, and suitable for the high-temperature oil gas and cooling oil that are obtained in revolving bed pyrolysis oven are supplied into Quench spray column into progress Heat exchange is handled, and obtains pyrolysis gas and pyrolysis oil;And isolated pyrolysis gas is supplied into purifier carry out purified treatment, Pyrolysis gas is purified, then part supply to the radiant tube of revolving bed pyrolysis oven of obtained purification pyrolysis gas is regard as combustion Material is used.Thus, the temperature of the pyrolysis oil and pyrolysis gas in high-temperature oil gas, reduction pyrolysis oil and pyrolysis gas can be efficiently separated, together Shi Yin carries out Quench spray using cooling oil to high-temperature oil gas, can avoid subsequently carrying out water-oil separating processing, improves processing life The economy of garbage system.Specifically, cooling oil can be the pyrolysis oil of cooling.
According to embodiment of the present utility model, with reference to Fig. 1, CFBB 400 has pyrolytic carbon entrance 401, heat Oil-in 402, purification pyrolysis gas entrance 403 and superheated steam outlet 404 are solved, pyrolytic carbon entrance 401 exports 203 phases with pyrolytic carbon Even, pyrolysis oil-in 402 is connected with pyrolysis oil export 303, and purification pyrolysis gas entrance 403 is connected with purification pyrolysis gas outlet 302, And suitable for the another part, pyrolytic carbon and the pyrolysis oil that purify pyrolysis gas are burnt, to obtain superheated steam.Thus, lead to Cross to supply pyrolytic carbon, pyrolysis oil and remaining purification pyrolysis gas to CFBB and carry out direct combustion generation superheated steam use In producing high-grade electricity, the sensible heat and latent heat in pyrolysis oil on the one hand can be fully reclaimed, and will not produce and largely be difficult to handle Waste water, also in the absence of pyrolysis oil block pipeline the problem of, on the other hand because pyrolytic carbon is loose broken, be pyrolyzed from revolving bed Shattering process can be completed while furnace discharge, therefore when entering in CFBB, the particle diameter of pyrolytic carbon is smaller, can carry A small amount of residue can be only produced after efficiency of combustion in high circulation fluidized-bed combustion boiler, and burning.Thus, it can be solved using the system The problem of pyrolysis oil present in prior art and pyrolysis gas are difficult by, thus be truly realized the minimizing of rubbish, it is harmless Change and recycling treatment, with good economic benefit.
According to embodiment of the present utility model, steam turbine generator group 500 has superheated steam entrance 501, and overheat is steamed Vapour entrance 501 is connected with superheated steam outlet 404, and suitable for superheated steam obtained above is generated electricity.Thus, be conducive to Realize the recycling of domestic garbage pyrolysis product.Specifically, the superheated steam produced in CFBB can be direct Enter steam turbine through stop valve, regulating valve, partial heat energy is converted to the mechanical energy of turbine rotor rotation, drives synchronous generator Rotation produces electric energy.
Thus, handled and given birth to by using pretreatment unit according to the system of the processing house refuse of the utility model embodiment Rubbish living, can significantly reduce the moisture content in house refuse, so as to significantly improve the effect of the pyrolysis in follow-up pyrolytic process Rate, and by pre-processing the inorganic matters such as the metal and glass that can effectively remove in house refuse, fragment of brick, so as to reduce The energy consumption of follow-up revolving bed pyrolysis oven, while the value of the pyrolytic carbon subsequently produced is improved, then by the way that part is passed through Purification pyrolysis gas obtained by the processing of Oil-gas Separation purifier is supplied to revolving bed pyrolysis oven to be used as fuel, can significantly be dropped The dependence of low hot pyrolysis oven fuel to external world, and pyrolysis oven fuel cost can be reduced, while being in revolving bed pyrolysis oven Anoxybiotic environment, therefore will not produce in pyrolytic process the pollutants such as bioxin, therefore without increasing extra treatment facility, So as to reduce the processing cost of whole processing house refuse, pyrolysis gas is purified secondly by by pyrolytic carbon, pyrolysis oil and residue Direct combustion is carried out in supply to CFBB and produces superheated steam for producing high-grade electricity, on the one hand can fully be reclaimed Sensible heat and latent heat in pyrolysis oil, and a large amount of reluctant waste water will not be produced, also block asking for pipeline in the absence of pyrolysis oil Topic, on the other hand because pyrolytic carbon is loose broken, shattering process can be completed while furnace discharge is pyrolyzed from revolving bed, therefore The particle diameter of pyrolytic carbon is smaller when in into CFBB, can improve the efficiency of combustion in CFBB, and combustion A small amount of residue can be only produced after burning.Thus, pyrolysis oil present in prior art can be solved using the system and pyrolysis gas is difficult The problem of to utilize, so that the minimizing of rubbish, innoxious and recycling treatment are truly realized, with good economic effect Benefit.
As described above, can have the advantages that to be selected from according to the system of the processing house refuse of the utility model embodiment following At least one:
According to the system of the processing house refuse of the utility model embodiment in house refuse preprocessing process without warp Crossing the pretreatment of complexity can be pyrolyzed into revolving bed pyrolysis oven, substantially reduce pyrolytic process flow, it is to avoid pre- place Manage the problem of effect is poor, processing equipment fault rate is high.
Regenerative gas in revolving bed pyrolysis oven in the system of the processing house refuse of the utility model embodiment Flue gas in radiant tube burner completely cuts off with the pyrolysis atmosphere in revolving bed pyrolysis oven burner hearth, and rubbish is warm under complete anoxic condition Solution, will not produce bioxin pollution.
The pyrolysis oil produced will be pyrolyzed through isolation of purified according to the system of the processing house refuse of the utility model embodiment After be directly entered burning in CFBB, the sensible heat and latent heat in pyrolysis oil can be reclaimed, and will not produce a large amount of Reluctant waste water, the problem of blocking pipeline in the absence of pyrolysis oil, is difficult to handle and utilizes while solving refuse pyrolysis oil The problem of.
The pyrolytic carbon for being pyrolyzed generation is sent directly into according to the system of the processing house refuse of the utility model embodiment and followed Circulation fluidized bed boiler is burnt, and can only produce a small amount of residue, is truly realized the minimizing of house refuse, innoxious and money Sourceization processing.
According to the pyrolytic carbon of the system domestic garbage pyrolysis of the processing house refuse of the utility model embodiment generation, pyrolysis Oil and remaining pyrolysis gas enter the superheated steam produced after burning in circulating fluid bed boiler and generated electricity into steam turbine generator group, Product is the electric energy of cleaning, and can obtain the subsidy of national garbage power, with good economic benefit.
Understand for convenience, below with reference to Fig. 4-5 pairs of systems using the processing house refuse of the utility model embodiment The method of processing house refuse is described in detail.According to embodiment of the present utility model, with reference to Fig. 4, this method includes:
S100:House refuse is supplied to pretreatment unit and pre-processed
In the step, house refuse is supplied to pretreatment unit and pre-processed, to obtain inorganic refuse and organic Rubbish.Thus, be conducive to improving the treatment effeciency of whole house refuse electricity generation system.
According to one embodiment of the present utility model, preprocessing process can include sorting process, magnetic separation processing, at crushing Reason and heap filter processing.Specifically, house refuse first is carried out into sorting process, metal, glass, fragment of brick etc. in house refuse are removed Bulk inorganic matter;Then magnetic separation processing is carried out, the metal impurities in house refuse is further removed, obtains organic waste, so that The value of the follow-up gained pyrolytic carbon of increase;Then pass through reducing mechanism, reduce the particle diameter of organic waste, be conducive to quickening to have Pyrolysis of the machine rubbish in follow-up revolving bed pyrolysis oven;Finally, organic waste is subjected to heap filter processing, organic waste can be significantly reduced Moisture content, the energy consumption of follow-up revolving bed pyrolysis oven is advantageously reduced, so as to reduce the processing of whole processing house refuse system Energy consumption.
According to one embodiment of the present utility model, the moisture content in gained organic waste can be not higher than 40wt%.By This, can significantly improve the pyrolysis efficiency in follow-up revolving bed pyrolysis oven.
S200:Organic waste is supplied to the feed zone of revolving bed pyrolysis oven so that organic waste sequentially passes through dry section And pyrolysis zone
In the step, organic waste is supplied to the feed zone of revolving bed pyrolysis oven so that organic waste sequentially passes through dry Dry area and pyrolysis zone, to obtain high-temperature oil gas and pyrolytic carbon, and pyrolytic carbon is discharged through discharge zone.Thus, it is remarkably improved The pyrolysis efficiency of revolving bed pyrolysis oven.
According to one embodiment of the present utility model, the temperature of dry section and the temperature of pyrolysis zone are not particularly restricted, Those skilled in the art can be selected according to actual needs, according to a specific embodiment of the present utility model, dry section Temperature can be 300~400 degrees Celsius, the temperature of pyrolysis zone can be 600~900 degrees Celsius.Thus, it is possible to significantly improve The pyrolysis efficiency of organic waste.
S300:High-temperature oil gas is supplied to Oil-gas Separation clean unit and carries out isolation of purified processing, and pyrolysis gas will be purified Part supply to revolving bed pyrolysis oven
In the step, high-temperature oil gas is supplied to Oil-gas Separation clean unit and carries out isolation of purified processing, it is net to obtain Change pyrolysis gas and pyrolysis oil, and the part for purifying pyrolysis gas is supplied to revolving bed pyrolysis oven.Thus, high temperature can be efficiently separated The temperature of pyrolysis oil and pyrolysis gas in oil gas, reduction pyrolysis oil and pyrolysis gas, improves the economy of processing house refuse system.
According to one embodiment of the present utility model, with reference to Fig. 5, Oil-gas Separation purified treatment can be entered according to the following steps OK:
S31:High-temperature oil gas and cooling oil are supplied into Quench spray column and carry out heat exchange processing
In the step, the high-temperature oil gas and cooling oil that are produced in revolving bed pyrolysis oven are supplied into Quench spray column progress Heat exchange is handled, to obtain pyrolysis gas and pyrolysis oil.Thus, the pyrolysis oil and pyrolysis gas in high-temperature oil gas can be efficiently separated, is dropped The temperature of low pyrolysis oil and pyrolysis gas, while because carrying out Quench spray to high-temperature oil gas using cooling oil, follow-up progress can be avoided Water-oil separating is handled, and improves the economy of processing house refuse system.Specifically, cooling oil can be the pyrolysis oil of cooling.
S32:Pyrolysis gas is supplied into purifier and carries out purified treatment, and by the one of isolated purification pyrolysis gas Part supply to revolving bed pyrolysis oven is used as fuel
In the step, pyrolysis gas is supplied into purifier and carries out purified treatment, to be purified pyrolysis gas, and will Part supply to the revolving bed pyrolysis oven of gained purification pyrolysis gas is used as fuel.Thus, the hot pyrolysis oven is significantly reduced The dependence of fuel to external world, and pyrolysis oven fuel cost can be reduced.It should be noted that those skilled in the art can root Selected according to the concrete operations mode being actually needed to purified treatment.
S400:The another part, pyrolytic carbon and the pyrolysis oil that purify pyrolysis gas are supplied into CFBB progress Burning
In the step, the another part, pyrolytic carbon and the pyrolysis oil that purify pyrolysis gas are supplied into CFBB Burnt, to obtain superheated steam.Thus, by the way that pyrolytic carbon, pyrolysis oil and remaining purification pyrolysis gas are supplied to circulation Direct combustion is carried out in fluidized-bed combustion boiler and produces superheated steam for producing high-grade electricity, on the one hand fully can be reclaimed in pyrolysis oil Sensible heat and latent heat, and a large amount of reluctant waste water, the problem of also blocking pipeline in the absence of pyrolysis oil, another aspect will not be produced Because pyrolytic carbon is loose broken, shattering process can be completed while furnace discharge is pyrolyzed from revolving bed, therefore entering recycle stream The particle diameter of pyrolytic carbon is smaller when in fluidized bed boiler, can only be produced after can improving the efficiency of combustion in CFBB, and burning Raw a small amount of residue.Thus, pyrolysis oil present in prior art can be solved using this method and pyrolysis gas is difficult by asks Topic, so that the minimizing of rubbish, innoxious and recycling treatment are truly realized, with good economic benefit.
S500:Superheated steam is supplied to steam turbine generator group and generated electricity
In the step, superheated steam is supplied to steam turbine generator group and generated electricity.Thus, it is advantageously implemented life The recycling of refuse pyrolysis product.Specifically, the superheated steam produced in CFBB can directly through stop valve, Regulating valve enters steam turbine, and partial heat energy is converted to the mechanical energy of turbine rotor rotation, and driving synchronous generator rotation is produced Electric energy.
The method of processing house refuse is implemented by adopting according to the system of the processing house refuse of the utility model embodiment House refuse is handled with pretreatment unit, the moisture content in house refuse can be significantly reduced, it is follow-up so as to significantly improve Pyrolysis efficiency in pyrolytic process, and by pre-processing the metal and glass that can effectively remove in house refuse, fragment of brick etc. Inorganic matter, so as to reduce the energy consumption of follow-up revolving bed pyrolysis oven, while improving the exploitation value of the pyrolytic carbon subsequently produced Value, then by using part through Oil-gas Separation purifier handle obtained by purification pyrolysis gas supply to revolving bed pyrolysis oven as Fuel is used, and can significantly reduce the dependence of hot pyrolysis oven fuel to external world, and can reduce pyrolysis oven fuel cost, together When revolving bed pyrolysis oven in be anoxybiotic environment, therefore will not produce in pyrolytic process the pollutants such as bioxin, thus without The extra treatment facility of increase, so as to reduce the processing cost of whole processing house refuse, secondly by by pyrolytic carbon, pyrolysis Oil and remaining purification pyrolysis gas supply to CFBB carry out direct combustion produce superheated steam be used to producing it is high-grade Electricity, on the one hand can fully reclaim the sensible heat and latent heat in pyrolysis oil, and will not produce a large amount of reluctant waste water, also be not present The problem of pyrolysis oil blocks pipeline, can while furnace discharge is pyrolyzed from revolving bed on the other hand because pyrolytic carbon is loose broken Shattering process is completed, therefore when entering in CFBB, the particle diameter of pyrolytic carbon is smaller, can improve recirculating fluidized bed pot A small amount of residue can be only produced after efficiency of combustion in stove, and burning.Thus, it can solve to exist in the prior art using this method Pyrolysis oil and pyrolysis gas the problem of be difficult by, so as to be truly realized the minimizing of rubbish, innoxious and recycling treatment, With good economic benefit.
Below with reference to specific embodiment, the utility model is described, it is necessary to which explanation is, these embodiments are only Descriptive, without limiting the utility model in any way.
Embodiment
Certain city's house refuse is used for raw material, house refuse moisture content 55%, composition composition such as table 1.
The house refuse composition of table 1 constitutes (wt%)
With reference to Fig. 6, house refuse is supplied to pretreatment unit, sorting, magnetic separation, crushing and heap filter processing is sequentially passed through, Bulk inorganic refuse therein is removed, such as brick, stone, big part glass metal product obtain moisture content for not higher than 40wt% organic waste, then supplies the feed zone into revolving bed pyrolysis oven, and sequentially pass through by gained organic waste Dry section and pyrolysis zone in stove are handled, wherein, 350 degrees Celsius of dry section temperature, main function is by organic waste Moisture dried, 700 degrees Celsius of pyrolysis zone temperature, be rubbish complete pyrolysis main reaction region, reaction generation high-temperature oil gas and Rubbish charcoal, sets high-temperature oil gas to export, for collecting the high temperature containing water vapour at the top of revolving bed pyrolysis oven close to pyrolysis zone Oil gas, hot pyrolytic carbon outlet discharge of the pyrolytic carbon through discharge zone, then supplies high-temperature oil gas and cooling oil to Quench spray column Middle progress heat exchange processing, obtains pyrolysis gas and pyrolysis oil;Pyrolysis gas is supplied into purifier and carries out purified treatment, obtains net Change pyrolysis gas, a portion purification pyrolysis gas is supplied into revolving bed pyrolysis oven, is that the radiant tube of revolving bed pyrolysis oven is improved Fuel, then the another part, pyrolytic carbon and the pyrolysis oil that purify pyrolysis gas are supplied into CFBB carry out fully (pyrolytic carbon that is produced in revolving bed pyrolysis oven is discharged using sealing double helix discharging machine and sends into CFBB for burning Interior, double helix is arranged side by side, and spiral is engaged, because house refuse have passed through pyrolytic reaction, plastics therein, fabric, wood The organic matters such as bamboo are pyrolyzed as carbide, and the carbide is different from crude waste, loose easily broken, by the stirring of double helix And squeezing action, shattering process can be completed while discharging, form the raw material met needed for CFBB), with following The feedwater heat exchange of circulation fluidized bed boiler produces 300-500 degrees Celsius of superheated steam, and superheated steam enters vapour through stop valve, regulating valve Turbine, partial heat energy is converted to the mechanical energy of turbine rotor rotation, and driving synchronous generator rotation produces electric energy, the electricity of generation Can partly use by oneself it is outer be connected to the grid, rubbish per ton can generate electricity 238kWh.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area Technical staff the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification can be entered Row is combined and combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims (3)

1. a kind of system for handling house refuse, it is characterised in that including:
Pretreatment unit, the pretreatment unit has house refuse entrance, inorganic refuse outlet and organic waste outlet;
In revolving bed pyrolysis oven, the revolving bed pyrolysis oven feed zone, dry section, pyrolysis are sequentially formed along furnace bottom rotation direction Area and discharge zone, the feed zone are provided with organic waste entrance, and the pyrolysis zone is provided with high-temperature oil gas outlet, the discharging Area is provided with pyrolytic carbon outlet, and the organic waste entrance is connected with organic waste outlet;
Oil-gas Separation clean unit, the Oil-gas Separation clean unit has high-temperature oil gas entrance, purification pyrolysis gas outlet and heat Oil export is solved, the high-temperature oil gas entrance is connected with high-temperature oil gas outlet, the purification pyrolysis gas outlet and the rotation Bed pyrolysis oven is connected;
CFBB, the CFBB has pyrolytic carbon entrance, pyrolysis oil-in, purification pyrolysis gas entrance With superheated steam outlet, the pyrolytic carbon entrance is connected with pyrolytic carbon outlet, the pyrolysis oil-in and the pyrolysis oil Outlet is connected, and the purification pyrolysis gas entrance is connected with the purification pyrolysis gas outlet;
Steam turbine generator group, the steam turbine generator group has a superheated steam entrance, the superheated steam entrance with The superheated steam outlet is connected.
2. system according to claim 1, it is characterised in that the pretreatment unit includes the sorting dress being sequentially connected Put, concentration equipment, reducing mechanism and heap filter device.
3. system according to claim 1 or 2, it is characterised in that the Oil-gas Separation clean unit is sprayed including Quench Device and purifier, the high-temperature oil gas entrance and the pyrolysis oil export are arranged on the chilling spray equipment, described Chilling spray equipment is additionally provided with cooling oil-in and pyrolysis gas outlet, and the purification pyrolysis gas outlet is arranged on the purification dress Put, the purifier is additionally provided with pyrolysis gas entrance, the pyrolysis gas outlet is connected with the pyrolysis gas entrance.
CN201621307990.4U 2016-11-30 2016-11-30 The system for handling house refuse Expired - Fee Related CN206316130U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106391673A (en) * 2016-11-30 2017-02-15 北京神雾环境能源科技集团股份有限公司 System and method for treating household garbage
CN111589844A (en) * 2020-05-29 2020-08-28 北京云水浩瑞环境科技有限公司 System and method for treating household garbage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106391673A (en) * 2016-11-30 2017-02-15 北京神雾环境能源科技集团股份有限公司 System and method for treating household garbage
CN111589844A (en) * 2020-05-29 2020-08-28 北京云水浩瑞环境科技有限公司 System and method for treating household garbage

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