CN102607037B - Multistage hydraulic mechanical garbage incinerator and control method for same - Google Patents

Multistage hydraulic mechanical garbage incinerator and control method for same Download PDF

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Publication number
CN102607037B
CN102607037B CN201210096588.6A CN201210096588A CN102607037B CN 102607037 B CN102607037 B CN 102607037B CN 201210096588 A CN201210096588 A CN 201210096588A CN 102607037 B CN102607037 B CN 102607037B
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CN
China
Prior art keywords
grate
fire grate
fixed
segment
film
Prior art date
Application number
CN201210096588.6A
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Chinese (zh)
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CN102607037A (en
Inventor
陈涛
张宾
温俊明
韩乃卿
朱福刚
王健生
朱亮
刘玉坤
邵哲如
Original Assignee
光大环保科技发展(北京)有限公司
光大环保设备制造(常州)有限公司
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Priority to CN201210096588.6A priority Critical patent/CN102607037B/en
Publication of CN102607037A publication Critical patent/CN102607037A/en
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Publication of CN102607037B publication Critical patent/CN102607037B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/002Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • F23G5/05Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying using drying grates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50Control or safety arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H17/00Details of grates
    • F23H17/08Bearers; Frames; Spacers; Supports
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H17/00Details of grates
    • F23H17/12Fire-bars
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H3/00Grates with hollow bars
    • F23H3/02Grates with hollow bars internally cooled
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H7/00Inclined or stepped grates
    • F23H7/06Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding
    • F23H7/08Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding reciprocating along their axes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00Waste feed arrangements
    • F23G2205/10Waste feed arrangements using ram or pusher
    • F23G2205/101Waste feed arrangements using ram or pusher sequentially operated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00Control
    • F23G2207/30Oxidant supply

Abstract

The invention provides a multistage hydraulic mechanical garbage incinerator and a control method for the same. The multistage hydraulic mechanical garbage incinerator comprises a feeding port, a feeding fire grate, an incinerating fire grate, a primary air supply system and a secondary air supply system. The incinerating fire grate is longitudinally divided into five units, wherein the first unit, the second unit, the third unit and the fourth unit are standard units, the fifth unit is a tail end lengthened unit, each unit comprises a plurality of sliding fire grate segments, turning fire grate segments and fixed fire grate segments, and the incinerating fire grate is integrally and longitudinally divided into a drying section, a burning section and a burnout section by the five units. The multistage hydraulic mechanical garbage incinerator is characterized in that the fire grate segments in each row of the incinerating fire grate are transversely driven by a shaft and transversely supported by a steel frame at three positions at the least. By the aid of the multistage hydraulic mechanical garbage incinerator, the shortcomings of an existing garbage incinerator are improved, and burnout ratio of garbage incineration is increased.

Description

A kind of multistage hydraulic mechanical type garbage incinerator and control method thereof
Technical field
The present invention relates to the burning of the refuses such as rubbish, particularly a kind of multistage hydraulic mechanical type garbage incinerator and control method thereof.
Background technology
Waste incineration is to realize one of main path of garbage decrement, innoxious and recycling treatment.Waste incineration at present becomes the main path of urban garbage disposal gradually, rubbish is through modern burning disposal, and volume generally can reduce 80%-90%, can eliminate various pathogen simultaneously, harmful substance is converted into harmless object, can also realizes the utilization of resource.
The existing waste incineration mechanical type garbage incinerators with transmit bed that adopt, described fire grate mainly comprises: forwards reciprocal grate, backstepping reciprocal grate, drum-type grate etc. more.Incinerator shown in Fig. 1 is just for adopting a kind of incinerator of forwards reciprocal grate.As shown in Figure 1, described incinerator comprises charging aperture 1, feed fire grate 2, is positioned at the fire grate 3 for waste incineration of burner hearth, a wind air feed system 4 that is positioned at transmit bed bottom, the Secondary Air air feed system 5 that is positioned at furnace throat portion and slag-drip opening 6.The siege that transmit bed entirety is configured for burning away the refuse, described siege is longitudinally divided into dryer section, burning zone and after-flame section, transmit bed entirety is longitudinally divided into 3 and burns unit, and each burns unit and is made up of multiple slip fire grate segments, travelling grate sheet and fixed grate film.Rubbish is poured described incinerator into from charging aperture, enter on the siege in described incinerator and burn by rubbish described in the reciprocating effect of feed fire grate, dried, dewatered at rubbish described in described dryer section, described rubbish mainly burns at described burning zone, rubbish through after-flame section has burnt totally, remaining slag enters slag-drip opening afterwards, is discharged out of the furnace by slag-drip opening.A wherein said wind is sent into from the air compartment of described transmit bed bottom, and for the described rubbish that burns, described Secondary Air is sent into from the furnace throat portion of described incinerator, for by the fuel gas after-flame of flue gas after burning.The ratio of the heat of the combustible in combustible release heat and the former rubbish burning in rubbish, rubbish burn-off rate is a very important parameter index in garbage incineration process.
Above-mentioned incinerator has following defect in actual applications:
1) because above-mentioned fire grate is longitudinally to arrange on the whole, formed side by side by 4 row fire grate unit at width, described fire grate is point four sections of drivings laterally, each unit is by a group oil cylinder control, this just causes the space of leaving fluid pressure drive device in above-mentioned fire grate middle part, and this body structure of fire grate is compact, space in the middle of this is less, cause this position by the heat accumulation passing out in burner hearth, temperature raises, according to operating experience, substantially this place's temperature is more than 100 ℃, and the oil pipe of existing transmit bed fluid pressure drive device adopts pipe joint connecting structure more, excessive temperature in two sections of driving shaft joints, fire grate middle part can cause above-mentioned transmit bed cylinder seal aging, regular leakage of oil, cause even thus fire, in operation, difficulty is larger.
2) in prior art domestic waste incineration feed fire grate give trolley often there is excessive dolly stuck normally pusher and the rollback of causing of dolly afterbody perk in pusher process forward, need artificial chain block that dolly is retracted to initial position, bring a lot of difficulties to production run.Because the width of feed fire grate in prior art and transmit bed is different, cause house refuse at transversely skewness of fire grate simultaneously, directly affected the combustion efficiency of rubbish.
3) existing latter end garbage incinerator fire grate unit is too short, is difficult to meet under China's house refuse high-moisture condition as far as possible by the requirement of rubbish after-flame.
4) cooling effect of a wind of fire grate is poor, and the friction between fire grate is larger, causes fire grate segment serious wear, has affected the life-span, but the replacement cost of above-mentioned fire grate is very high.
5) often there is axial float in the travelling grate of conventional garbage incinerator, causes thus pull bar fracture, and serious wear between travelling grate sheet and side wall fire grate segment, has a strong impact on production run.
6) due to the current refuse classification work of China also do not do as western developed country good, therefore at present kitchen excess is many in the domestic waste of China, water content also higher, calorific value is lower.Mostly the action that adds existing air feed system and fire grate is the manual adjustments of carrying out according to operations staff's experience, the experience shadow that is subject to subjective factor and operations staff is to compared with large and can not adjust according to the variation of refuse thermal value timely, cause the combustion efficiency of rubbish poor, birth slag rate is higher.
7) travelling grate sheet is dug after 25 degree, without buffering, larger to the impact of support wheel when falling.
8) wind charging temperature of transmit bed is designed to 180 ℃, and according to the operating experience of moving garbage power plant, the moisture of rubbish is higher, and especially in the winter time, the charging temperature of a wind is on the low side to be unfavorable for the dry of rubbish and to grill thoroughly.
9) speed, stroke and the frequency of feed fire grate and slip fire grate are to control by bed of material pressure reduction, and because component of refuse, calorific value etc. have larger fluctuation, thereby this control method is unfavorable for rubbish after-flame.
Therefore, be badly in need of a kind of novel incinerator and control method thereof, to solve the various deficiencies that exist in conventional garbage incinerator.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of multistage hydraulic mechanical type garbage incinerator and control method thereof, to improve the deficiency of conventional garbage incinerator, improve the burn-off rate of waste incineration.
The invention provides a kind of multistage hydraulic mechanical type garbage incinerator, comprise charging aperture, feed fire grate, transmit bed, wind supply system and Secondary Air supply system, described transmit bed is longitudinally divided into five unit, wherein Unit first to fourth is standard block, Unit the 5th is that end lengthens unit, above-mentioned each unit is all by several slip fire grate segments, travelling grate sheet, fixed grate film composition, described five unit are divided into dryer section by described transmit bed entirety along rubbish moving direction, burning zone and after-flame section, it is characterized in that, the every grate furnace screening of described transmit bed is along laterally being driven by an axle, and supported at least three positions by steelframe in the horizontal.
Further, described steelframe comprises and is positioned at the support member of described transmit bed both sides for fixed support driving shaft.
Further, the below of the transmit bed between described transmit bed two side supports arranges at least one intermediate support.
Further, described standard block is 5 row's fire-grating chip architectures or 6 row's fire-grating chip architectures.
Further, described 5 row's fire-grating chip architectures are slided by two rows, and fire grate segment, two is arranged fixed grate films and row's travelling grate sheet forms, and it specifically puts in order as slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, fixed grate film or slip fire grate segment, fixed grate film, slip fire grate segment, travelling grate sheet, fixed grate film.
Further, described 6 row's fire-grating chip architectures are slided by two rows, and fire grate segment, two is arranged travelling grate sheets and two row's fixed grate films form, and it specifically puts in order as slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, travelling grate sheet and fixed grate film.
Further, described end lengthening unit is slided by four rows, and fire grate segment, is arranged travelling grate sheet and three row's fixed grate films form.
Further, described end lengthens the order arrangement that in unit, fire grate segment is pressed slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, fixed grate film, slip fire grate segment, fixed grate film, slip fire grate segment.
Further, described slip fire grate segment, fixed grate film and travelling grate sheet are provided with dust block board.
Further, described fixed grate film and slip fire grate segment are provided with elastic wear-resisting scraper plate.
Further, described travelling grate sheet is made up of upper and lower Combined fire grate, and this upper and lower Combined fire grate comprises upper cover plate and supports the fire grate segment main body of this upper cover plate.
Further, described fire grate segment main body comprises rotates end and support end, and wherein, the support end of described fire grate segment main body is provided with pin shaft hole, and the rotation end of described fire grate segment main body is provided with elbow.
Further, described upper cover plate comprises rotating to be held and support end, and wherein, the support end of described upper cover plate is provided with the pin groove corresponding with described pin shaft hole, and the rotation end of described upper cover plate is provided with the cutting ferrule corresponding with described elbow.
Further, described pin groove is connected by bearing pin with pin shaft hole, for the support end of fixing described Combined fire grate.
Further, the mutual interlock of described cutting ferrule and elbow is for the rotation end of fixing described Combined fire grate.
Further, the hook that the rotation end tail down bending that described cutting ferrule is upper cover plate forms.Further, described hook is font.
Further, described elbow is to be arranged at fire grate segment main body to rotate the projection piece of holding, and described projection piece lower end is provided with groove.
Further, in described fire grate segment main body, be equipped with floor with the faying face inner side of upper cover plate.
Further, described fire grate segment main body is provided with seam.
Further, also comprise and stir roller structure, described in stir roller below and there are at least 2 support members that stir roller for supporting this.
Further, described support member is support roller station.
Further, described support roller adopts resistant to elevated temperatures roller bearing.
Further, described in, stirring roller is made up of a part of rotating macro-axis.
Further, described rotation macro-axis is for supporting and drive travelling grate sheet.
Further, the trolley afterbody upper surface of giving of described feed fire grate has the limited support device moving up to trolley for limiting.
Further, described limited support device comprises and being fixed on to the bracing frame on trolley, scroll wheel and rolling shaft, support frame as described above top has groove, and described scroll wheel is fixed in described groove by rolling shaft, and scroll wheel can Free-rolling in described groove.
Further, the height of described limited support device is lower than the cover plate supporting traverse of giving trolley top.
Further, the number of described limited support device is one or more.
Further, the width of described feed fire grate is identical with the width of described transmit bed.
Further, be also provided with cooling chamber at the dual-side of fire grate.
Further, drive the oil pipe of the fluid pressure drive device of fire grate segment to adopt stainless steel sleeve pipe Welding Structure.
Further, described fixed grate film is provided with the thermocouple for thermometric.
Further, lengthen last row's fixed grate film in unit for end, from the fire grate segment of second, left side, every a fire grate segment, a thermocouple is set; The row's fixed grate film closing on for first module to the Unit four and travelling grate sheet, from the fire grate segment of the 3rd, left side, arranges a thermocouple every 4 fire grate segments.
The present invention also provides a kind of control method of above-mentioned incinerator, comprise the control method to air feed system and/or fire grate segment, the control method of wherein said fire grate segment comprises, according to the step of grate length and/or end fixed grate film temperature adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency.
Further, the described step according to grate length adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency comprises: established standards grate length is L 0; Measuring actual grate length is L; Calculate grate length difference Δ L=|L-L 0|; Adjust at least one of feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency so that Δ L minimum.
Further, the described step according to end fixed grate film temperature adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency comprises: setting end fixed grate film normal temperature is T 1 0; Measuring end fixed grate film actual temperature is T 1; Calculate end fixed grate film temperature gap Δ T 1=| T 1-T 1 0|; Adjust at least one of feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency so that Δ T 1minimum.The measurement of described end fixed grate film temperature is that the multiple thermocouples by being set on described end fixed grate film are realized.Described end fixed grate film actual temperature T 1for the mean value of the multiple points for measuring temperature in described end fixed grate film place.
The present invention also provides a kind of control method of above-mentioned incinerator, comprise the control method to air feed system and/or fire grate segment, the control method of wherein said fire grate segment comprises, according to the set-up procedure of stirring frequency of grate height and/or fixed grate film temperature adjustment travelling grate sheet.
Further, comprise according to the set-up procedure of stirring frequency of grate height adjustment travelling grate sheet: established standards grate height is H 0; Measuring actual grate height is H; Calculate grate height difference Δ H=|H-H 0|; That adjusts travelling grate sheet stirs frequency so that Δ H minimum.
Further, comprise according to the set-up procedure of stirring frequency of fixed grate film temperature adjustment travelling grate sheet: setting fixed grate film normal temperature is T 2 0; Measuring this fixed grate film actual temperature is T 2; Calculate this fixed grate film temperature gap Δ T 2=| T 2-T 2 0|; That adjusts row's travelling grate sheet that this fixed grate film closes on stirs frequency so that Δ T 2minimum.The measurement of described fixed grate film temperature is that the multiple thermocouples by being set on described fixed grate film are realized.This fixed grate film actual temperature T 2for the mean value of the multiple points for measuring temperature in described fixed grate film place.
Further, after the stirring control method and be included in described travelling grate sheet and dig of travelling grate sheet, fallen after rise to 4 degree fast by 25 degree, cushion by hydraulic oil, then fall after rise at a slow speed to original position.
The present invention also provides a kind of control method of above-mentioned incinerator, comprise the control method to air feed system and/or fire grate segment, wherein said air feed system is for to supplying wind and Secondary Air in described incinerator, and the control method of wherein said air feed system comprises the step of adjusting primary air flow and/or a wind-warm syndrome according to combustor exit flue-gas temperature.
Further, the described step according to combustor exit flue-gas temperature adjustment primary air flow and/or a wind-warm syndrome comprises: setting combustor exit standard flue-gas temperature is T 3 0; Measure the actual flue-gas temperature T of combustor exit 3; Calculate combustor exit flue-gas temperature difference DELTA T 3=| T 3-T 3 0|; Adjust at least one of primary air flow and a wind-warm syndrome so that Δ T 3minimum.The actual flue-gas temperature T of described combustor exit 3for the mean value of the multiple points for measuring temperature in described combustor exit place.
Further, the charging temperature of a described wind is 220 ℃.
The present invention also provides a kind of control method of above-mentioned incinerator, comprise the control method to air feed system and/or fire grate segment, wherein said air feed system is for to supplying wind and Secondary Air in described incinerator, and the control method of wherein said air feed system comprises the step of adjusting secondary air flow according to flue gas temperature of hearth outlet and/or furnace outlet flue gas oxygen content.
Further, the described step according to flue gas temperature of hearth outlet adjustment secondary air flow comprises: setting furnace outlet standard flue-gas temperature is T 4 0; Measure the actual flue-gas temperature T of furnace outlet 4; Calculate flue gas temperature of hearth outlet difference DELTA T 4=| T 4-T 4 0|; Adjust secondary air flow so that Δ T 4minimum.The actual flue-gas temperature T of described furnace outlet 4for the mean value of the multiple points for measuring temperature in described furnace outlet place.
Further, the described step according to furnace outlet flue gas oxygen content adjustment secondary air flow comprises: setting furnace outlet flue gas standard oxygen content is O 0; Measure furnace outlet flue gas actual oxygen content O; Calculate furnace outlet flue gas oxygen content difference DELTA O=|O-O 0|; Adjust secondary air flow so that Δ O minimum.Described furnace outlet flue gas actual oxygen content O is the mean value of the multiple test points in described furnace outlet place.
The invention solves the technical problem that above-mentioned fire grate garbage incinerator exists, a kind of incinerator grate furnace that is more suitable for life in China rubbish feature is provided, and adopt more rational air feed and stocker control scheme, make to adopt efficient, the stable operation of garbage incinerating power plant of this grate furnace and control program.The present invention has the following advantages:
1, because fire grate entirety longitudinally (direction of advance in incinerator of house refuse) be divided into five unit, for dry, burning and the after-flame of rubbish provide enough room and times, can significantly improve the combustion position of rubbish, improve the burn-off rate of rubbish; Every grate furnace screening is laterally driven by an axle and carries out at least supported at three point in both sides and centre position and can control the distortion of the potential leakage of oil point of hydraulic system and driving shaft, fire grate, thus make operation more stable, reliably improve combustion efficiency simultaneously; Drive the hydraulic oil pipeline of fire grate segment to adopt soldering oil pipeline, such design can be avoided due to excess Temperature, and transmit bed cylinder seal is aging, regular leakage of oil, cause thus the possibility of fire, because fire grate entirety is modular construction, installation rate is fast, precision is high.
2, owing to staying rational gap between limited support wheel and cover plate, feed fire grate is in the process of advancing like this, the displacement of upward direction is limited in very little scope by roller, effectively guarantee that feed fire grate is by the orbit even running of design, can there is not skew and stuck phenomenon, efficiently solve to the often problem of derailing of trolley.Meanwhile, feed fire grate is identical with the width of transmit bed, and transversely rubbish distribution is more even to make transmit bed, burns more abundant.
3, due to the lengthening of end rubbish fire grate, the time of staying of rubbish in incinerator extends, thereby improved the burn-off rate of house refuse.
4, because travelling grate sheet is divided into two parts (upper cover plate and travelling grate sheet support), in actual use, even if worn and torn upper cover plate, can directly upper cover plate be changed, support and need not change travelling grate, avoid the defect that needs whole fire grate segment to change in prior art, saved cost, reduced spillage of material, reduced operating cost; Owing to stirring roller by two or more supports support, the whole roller intermediate supports of stirring is by a bit having become more than 2, effectively decompose the stressed of support roller, guarantee that the bearing in support roller can not damage for a long time in service, and effectively limited the amount of deflection of rotating macro-axis, extend the service life of rotating macro-axis.This support roller adopts resistant to elevated temperatures roller bearing, and the environment for use that meets burning furnace high-temperature has met again the heavy-duty service of incinerator, and this bearing has again the function of automatic centering aligning, the applying working condition in very applicable this incinerator; Owing to being fallen after rise to 21 degree by 25 degree after digging at travelling grate sheet, cushion by hydraulic oil, reduce the impact to support wheel, extend the life-span of support wheel; Because slip fire grate segment, fixed grate film and travelling grate sheet are all provided with dust block board, the leakage ash of minimizing fire grate that can maximum possible; Owing to being provided with elastic wear-resisting scraping blade, so almost do not rub facing mutually between two grate furnace sheets, improve service life; Fire grate assembly is modular construction, and installation accuracy is high, and installation rate is fast, and cost is lower.
5, because combustor exit flue-gas temperature has been reacted the combustion position of rubbish on fire grate, if the incineration firing situation above the higher explanation fire grate of flue-gas temperature is better, otherwise combustion position is not good, therefore can improve the combustion position of rubbish on fire grate to wind adjustment according to combustor exit flue-gas temperature.The combustion position that can significantly improve volatile matter according to furnace outlet flue gas content and oxygen content to Secondary Air adjustment, reduces the discharge of the pollutants such as CO.In a wind supply system design of incinerator, the charging temperature of a wind is brought up to 220 ℃, can make incineration firing obtain more abundant, burn-off rate is higher.
6, because grate length and highly reacted the combustion position of house refuse in incinerator, therefore according to grate length with highly fire grate is controlled and can be made the rubbish of incinerator all the time in good combustion position; In addition the temperature of fire grate segment has also been reacted the combustion position of rubbish in incinerator, therefore according to the temperature of fire grate segment, feed fire grate, slip fire grate and travelling grate is adjusted, and also can make house refuse in stove all the time in good combustion position.
Accompanying drawing explanation
Following accompanying drawing of the present invention is used for understanding the present invention in this as a part of the present invention.Shown in the drawings of embodiments of the invention and description thereof, be used for explaining principle of the present invention.
In accompanying drawing:
Fig. 1 is the structure chart of incinerator in prior art;
Fig. 2 is garbage incinerator fire grate integral arrangement schematic diagram of the present invention;
Fig. 3 is garbage incinerator fire grate first module structural representation of the present invention;
Fig. 4 is that garbage incinerator fire grate end of the present invention lengthens cell schematics;
Fig. 5 is garbage incinerator fire grate entirety bracing structure schematic diagram of the present invention;
Fig. 6 is feed fire grate schematic diagram of the present invention;
Fig. 7 is slip fire grate segment schematic diagram of the present invention;
Fig. 8 is fixed grate film schematic diagram of the present invention;
Fig. 9 is upper and lower combined type travelling grate sheet overall structure schematic diagram of the present invention;
Figure 10 is the assembly schematic diagram of upper and lower combined type travelling grate sheet of the present invention;
Figure 11 be double supporting wheel of the present invention support stir roller schematic diagram;
Figure 12 fire grate thermocouple of the present invention is arranged schematic diagram;
Figure 13 is the arrangement schematic diagram of thermocouple on fixed grate film of the present invention.
The specific embodiment
In the following description, a large amount of concrete details have been provided to more thorough understanding of the invention is provided.But, it is obvious to the skilled person that the present invention can be implemented without one or more these details.In other example, for fear of obscuring with the present invention, be not described for technical characterictics more well known in the art.
In order thoroughly to understand the present invention, to detailed step be proposed in following description, so that multistage hydraulic mechanical type garbage incinerator and control method thereof that explaination the present invention proposes are obvious, execution of the present invention is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present invention is described in detail as follows, but except these are described in detail, the present invention can also have other embodiments.
Should be understood that, when using in this manual term " to comprise " and/or when " comprising ", it indicates and has described feature, entirety, step, operation, element and/or assembly, exists or additional one or more other features, entirety, step, operation, element, assembly and/or their combination but do not get rid of.
The invention provides a kind of novel multistage hydraulic mechanical type garbage incinerator structure, described incinerator comprises charging aperture, feed fire grate, transmit bed, wind supply system and Secondary Air supply system.Described transmit bed is longitudinally divided into five unit 2,3,4,5,6 as shown in Figure 2, and wherein Unit first to fourth is standard block, and the 5th unit 6 is end lengthening unit.Described standard block is 5 row's fire-grating chip architectures or 6 row's fire-grating chip architectures.Described 5 row's fire-grating chip architectures are slided by two rows, and fire grate segment, two is arranged fixed grate films and row's travelling grate sheet forms, and it specifically puts in order as slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, fixed grate film or slip fire grate segment, fixed grate film, slip fire grate segment, travelling grate sheet, fixed grate film.Described 6 row's fire-grating chip architectures are slided by two rows, and fire grate segment, two is arranged travelling grate sheets and two row's fixed grate films form, and it specifically puts in order as slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, travelling grate sheet and fixed grate film.As shown in Figure 3 described standard block by two rows slide fire grate segment, two row travelling grate sheets and two row fixed grate films form, wherein Reference numeral 1 be feed fire grate interface fixed grate film, 2 for interface fixed grate scraper plate, 3 for side wall, 4 for fixed grate film, 5 for slip fire grate segment, 6 for travelling grate sheet, 7 for scraper plate, 8 be fire grate supporter.Above-mentioned slip fire grate segment is used for vertically moving described rubbish, described travelling grate sheet stirs rubbish in the vertical direction, so that rubbish fully burns, wherein the fire grate segment in above-mentioned each unit can have various arrangement mode, the arrangement mode of the fire grate segment that the most commonly slides, travelling grate sheet, fixed grate film, slip fire grate segment, travelling grate sheet, fixed grate film.Described end lengthens unit and is made up of slide fire grate segment 1, row's travelling grate sheet 2 and three row's fixed grate films 3 of four rows as shown in Figure 4.It specifically puts in order as slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, fixed grate film, slip fire grate segment, fixed grate film, slip fire grate segment.Due to the lengthening of end rubbish fire grate, the time of staying of rubbish in incinerator extends, thereby improved the burn-off rate of house refuse.Described transmit bed entirety is longitudinally divided into dryer section, burning zone and after-flame section by five unit.
The bracing structure of fire grate entirety of the present invention as shown in Figure 5, every grate furnace screening of fire grate 4 is laterally driven by an axle, supported at least three positions by steelframe 5 in the horizontal, described steelframe comprises and is positioned at the support member of described transmit bed both sides for fixed support driving shaft, and the intermediate support arranging below the transmit bed between described two side supports.The steelframe supporting construction increasing in centre can effectively reduce the amount of deflection of fire grate driving shaft, controls the distortion of driving shaft and fire grate, extends the service life of fire grate entirety.Fire grate laterally adopts an axle to drive, and can control the potential leakage of oil point of hydraulic system, makes fire grate segment Temperature Distribution more even, thus make operation more stable, reliably improve combustion efficiency simultaneously.Drive the oil pipe of the fluid pressure drive device of fire grate segment to adopt stainless steel sleeve pipe Welding Structure, because the oil pipe of fluid pressure drive device adopts stainless steel sleeve pipe Welding Structure, reduced the potential leak point of hydraulic system, move more stablely, reliability is higher.
Feed fire grate 4 of the present invention is for adopting hydraulic-driven as shown in Figure 6, and the width of described feed fire grate 4 and transmit bed is identical, house refuse is transversely distributed more even at fire grate, has improved combustion efficiency.The trolley 3 afterbody upper surfaces of giving of described feed fire grate 4 have the limited support device moving up to truck 3 for limiting.Under the promotion of hydraulic cylinder 1 interior hydraulic oil, advancing forward to trolley and feed fire grate 4 is pushed to the house refuse on feed fire grate 4 on the transmit bed in burner hearth, then be returned to original position, advance forward again house refuse is pushed on the fire grate in burner hearth, so move in circles and carry out work, at the afterbody upside of giving trolley, limited support device 2 is installed, between this limited support device and cover plate, stay rational gap, dolly is in the process of advancing like this, the displacement of upward direction is limited in very little scope, effectively guarantee that dolly is by the orbit even running of design, can there is not skew and stuck phenomenon, efficiently solve to the often problem of derailing of trolley.As preferably, described limited support device 2 comprises the bracing frame being fixed on on truck 3, scroll wheel and rolling shaft, support frame as described above top end is provided with groove, be used for around described scroll wheel, described rolling shaft plug is loaded in described groove, and described groove is greater than described scroll wheel, this scroll wheel can roll freely under the effect of rolling shaft in groove, so not only can will limit to the distance between trolley 3 and top cover plate, once and when dolly perk a little, when described scroll wheel contacts with cover plate, scroll wheel can slide along cover plate, further play the effect of buffering, can be not stuck even if encounter cover plate yet.The number of described limited support device 2 can be one or more, evenly, be symmetrically distributed in the afterbody to trolley 3, described limited support device 2 not only can prevent that dolly is stuck, and can effectively control the movement at left and right directions to trolley 3, prevents that dolly from de-orbiting.
House refuse is pushed on transmit bed by feed fire grate, is then dried, burning and after-flame.Transmit bed comprises slip fire grate segment, fixed grate film and travelling grate sheet.Consider the expanded by heating of fire grate segment in the time of operation, in the time that equipment is installed, between fire grate segment and between fire grate segment and equipment sidewall, all will leave certain gap.In order to reduce the leakage rate of rubbish from this gap, and for a wind that makes to enter from fire grate bottom is evenly distributed at fire grate device interior, as the inside of Fig. 7,8,9,10 fire grate segments that are shown in is also welded with the dust block board of stainless steel material.For the fire grate segment of different installed positions, be also not quite similar with shape and the position of the stainless steel dust block board of its welding, the leakage ash of minimizing fire grate that can maximum possible.Described fixed grate film and slip fire grate segment are provided with elastic wear-resisting scraper plate, can reduce to face mutually the friction between two grate furnace sheets, and then the service life of having improved fire grate segment.Dual-side at fire grate is also provided with cooling chamber.Adopt cooling air to make the external temperature of equipment unlikely too high, also play a part the refractory material of protection side wall fire grate segment inside simultaneously.
As described in as shown in Fig. 9,10, travelling grate is made up of upper and lower knockdown travelling grate sheet, upper and lower combined type travelling grate sheet comprises upper cover plate 7 and supports the fire grate segment main body of this upper cover plate 7, described upper cover plate 7 and fire grate main body 8 comprise rotates end and support end, wherein, the support end of described upper cover plate 7 is provided with pin groove, the support end of described fire grate main body 8 is provided with corresponding pin shaft hole, and described pin groove is connected by bearing pin with pin shaft hole, for the support end of fixed Combination fire grate; The rotation end of described upper cover plate 7 is provided with cutting ferrule, the rotation end of described fire grate main body 8 is provided with the elbow matching with cutting ferrule, for the rotation end of fixed Combination fire grate, thereby fire grate segment of the prior art is divided into two parts one upper cover plate 7 and fire grate segment main body, in actual use, even if worn and torn upper cover plate, can directly upper cover plate be changed, and need not change fire grate segment main body, avoid the defect that needs whole fire grate segment to change in prior art, save cost, reduced spillage of material, reduced operating cost.As preferably, described cutting ferrule is that the rotation end tail down bending of upper cover plate 7 forms hook, and as preferably, described hook is font hook, described elbow is to be arranged at fire grate main body 8 to rotate the projection piece of holding, described projection piece lower end is provided with groove, to coordinate the bend of hook.When use, at the hook that rotates end upper cover plate 7, the projection piece of fire grate main body 8 is wrapped completely, the bend of hook enters in the groove of projection piece downside, make described hook and projection piece mutually fasten stuck, at support end, described pin groove and pin shaft hole are coaxial setting, and bearing pin is inserted to described pin groove and pin shaft hole, thereby upper cover plate 7 and fire grate segment main body are become one, obtain upper and lower combined type travelling grate sheet.As preferably, described fire grate segment main body is provided with seam 10, by described seam 10, whole fire grate segment is fastened on the rotation macro-axis of fire grate, rotation macro-axis by fire grate drives, realize the whole fire grate segment moving axis that rotates and rotate, realize the stirring of rubbish, improve efficiency of combustion.As preferably, in described fire grate segment main body, be provided with floor with the faying face inner side of upper cover plate 7, by the setting of floor, not only improve the intensity of combined fire grate, and improved the heat dispersion of described fire grate, the number of described floor can arrange as required.
As shown in figure 11, the operation of described travelling grate sheet 7 is to promote to rotate macro-axis by hydraulic push rod to rotate, and then drives travelling grate sheet to stir action by rotating macro-axis.The described roller that stirs is made up of a part of rotating macro-axis, and described rotation macro-axis is for supporting and drive travelling grate sheet.Described stirring below roller, at least 2 support members that stir roller for supporting this are set, described support member can be for supporting tugboat.The strong point that stirs roller in prior art is become at least 2 from one, has effectively decomposed the stressed of tugboat, guarantee support roller be in operation not can be because of excess load rapid wear; Simultaneously due to the increase of the strong point, make to rotate macro-axis self-align and alleviate support wheel load in running, solve the problem that the frequent axial float of travelling grate 7 in prior art and rotation macro-axis pull bar 8 rupture.As preferably, described support member is support roller station 10, described support roller not only can well be played a supporting role to rotating macro-axis, and support roller and stir between roller tangent, friction between the two further reduces, and support roller can not stir on impact the motion repeatedly back and forth of roller on the one hand, and the wearing and tearing of described support roller self further reduce, extend service life, better guaranteed to stir the operation of roller 9 and travelling grate 7.As preferably, described tugboat is selected resistant to elevated temperatures roller bearing, the environment for use that this resistant to elevated temperatures roller bearing not only meets burning furnace high-temperature meets again high radial load, and this bearing has again the function of automatic centering aligning, the applying working condition in very applicable this incinerator.
Incinerator control method of the present invention comprises the control method to air feed system and fire grate segment, the control method of wherein said fire grate segment comprises, according to the step of grate length and/or end fixed grate film temperature adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency.
The above-mentioned step according to grate length adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency comprises: established standards grate length is L 0; Measuring actual grate length is L; Calculate grate length difference Δ L=|L-L 0|; Adjust at least one of feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency so that Δ L minimum.Grate measurement of length can adopt various existing measuring method well known in the art, such as infrared ray sensor measuring technique, laser measuring technique etc.Here just repeat no longer one by one.
The above-mentioned step according to end fixed grate film temperature adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency comprises: setting end fixed grate film normal temperature is T 1 0; Measuring end fixed grate film actual temperature is T 1; Calculate end fixed grate film temperature gap Δ T 1=| T 1-T 1 0|; Adjust at least one of feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency so that Δ T 1minimum.
The measurement of above-mentioned end fixed grate film temperature is that the multiple thermocouples by being set on described end fixed grate film are realized.The technical program is provided with the measuring point to fire grate segment temperature, and the temperature of fire grate segment in service is carried out to Real-Time Monitoring, for slip fire grate and travelling grate are controlled.
Be that fire grate thermocouple of the present invention is arranged schematic diagram as shown in figure 12, Figure 12 is the furnace bed top view of waste incineration, and it specifically comprises 5 unit, and each unit comprises multiple slip fire grate segments, travelling grate sheet and fixed grate film.Concrete arrangement for above-mentioned fire grate thermocouple can be: for last row's fixed grate film in Unit the 5th, from the fire grate segment of second, left side, every a fire grate segment, a thermocouple is set; The row's fixed grate film closing on for first module to the Unit four and travelling grate sheet, from the fire grate segment of the 3rd, left side, arranges a thermocouple every 4 fire grate segments; The arrangement of the thermocouple on each fixed grate film as shown in figure 13.Figure 11 is top view and the side view of described fixed grate film, and described the installation of TC is on the bottom surface of described top stove cover plate.Here the concrete arrangement that it should be noted that above-mentioned fire grate thermocouple is only a concrete example of the present invention; be not to limit the present invention; obviously also have for a person skilled in the art other possible alternative or simply distortion, but all belong to protection scope of the present invention.
Above-mentioned end fixed grate film actual temperature T 1be preferably the mean value of described multiple thermocouple measuring point temperature.Can reflect more exactly like this actual temp in described incinerator, to control more exactly the operation of described fire grate segment.
The control method of garbage incinerator grates sheet of the present invention, also comprises according to the set-up procedure of stirring frequency of grate height and/or fixed grate film temperature adjustment travelling grate sheet.
The above-mentioned set-up procedure of stirring frequency according to grate height adjustment travelling grate sheet comprises: established standards grate height is H 0; Measuring actual grate height is H; Calculate grate height difference Δ H=|H-H 0|; That adjusts travelling grate sheet stirs frequency so that Δ H minimum.The measurement of grate height can adopt various existing measuring method well known in the art, such as infrared ray sensor measuring technique, laser measuring technique etc.Here just repeat no longer one by one.
The above-mentioned set-up procedure of stirring frequency according to fixed grate film temperature adjustment travelling grate sheet comprises: setting fixed grate film normal temperature is T 2 0; Measuring this fixed grate film actual temperature is T 2; Calculate this fixed grate film temperature gap Δ T 2=| T 2-T 2 0|; That adjusts row's travelling grate sheet that this fixed grate film closes on stirs frequency so that Δ T 2minimum.
The measurement of above-mentioned fixed grate film temperature is that the multiple thermocouples by being set on described fixed grate film are realized.The technical program is provided with the measuring point to fire grate segment temperature, and the temperature of fire grate segment in service is carried out to Real-Time Monitoring, for feed fire grate, slip fire grate and travelling grate are controlled.Specifically as shown in Figure 10,11.
Above-mentioned fixed grate film actual temperature T 2be preferably the mean value of described multiple thermocouple measuring point temperature.Can reflect more exactly like this actual temp in described incinerator, to control more exactly the operation of described fire grate segment.
Concrete control mode to travelling grate sheet is: after travelling grate sheet is dug, fallen after rise to 4 degree fast by 25 degree, cushion by hydraulic oil, fall after rise at a slow speed to original position again, can reduce like this impact of travelling grate sheet to support wheel, extended the life-span of support wheel.
Here the control method of stirring frequency that it should be noted that above-mentioned adjustment feed fire grate fltting speed and stroke, slip fire grate segment fltting speed and frequency and travelling grate sheet can be carried out separately, also can carry out simultaneously.
The control method of incinerator air feed system of the present invention, comprise according to combustor exit flue-gas temperature, flue gas temperature of hearth outlet and furnace outlet flue gas oxygen content and adjust primary air flow and secondary air flow, so that flue gas stops the sufficiently long time more than sufficiently high temperature, and guarantee furnace outlet flue gas oxygen content within the specific limits.
Described air feed system is for to supplying wind and Secondary Air in described incinerator, and wind is for by the drying garbage on transmit bed, burning and after-flame; The combustible gas component after-flame of Secondary Air for rubbish is volatilized.Wherein said control method comprises the step of adjusting primary air flow and/or a wind-warm syndrome according to combustor exit flue-gas temperature.
The described step according to combustor exit flue-gas temperature adjustment primary air flow and/or a wind-warm syndrome comprises: setting combustor exit standard flue-gas temperature is T 3 0; Measure the actual flue-gas temperature T of combustor exit 3; Calculate combustor exit flue-gas temperature difference DELTA T 3=| T 3-T 3 0|; Adjust at least one of primary air flow and a wind-warm syndrome so that Δ T 3minimum.The various temperature measurement technologies that the measurement of described temperature can adopt those skilled in the art to be familiar with, for example thermocouple technology, measures described flue-gas temperature by multiple thermocouples being set in the exit of combustion chamber.Above-mentioned actual flue-gas temperature T 3can be the mean value of the multiple points for measuring temperature in exit of above-mentioned combustion chamber, the mean value of for example above-mentioned multiple thermocouples, can reflect the actual temperature of described flue gas so more accurately.
In a wind supply system design of incinerator of the present invention, the charging temperature of a wind is brought up to 220 ℃, can make incineration firing obtain more abundant, burn-off rate is higher.
Wherein said control method also comprises the step of adjusting secondary air flow according to flue gas temperature of hearth outlet.
The described step according to flue gas temperature of hearth outlet adjustment secondary air flow comprises: setting furnace outlet standard flue-gas temperature is T 4 0; Measure the actual flue-gas temperature T of furnace outlet 4; Calculate flue gas temperature of hearth outlet difference DELTA T 4=| T 4-T 4 0|; Adjust secondary air flow so that Δ T 4minimum.The various temperature measurement technologies that the measurement of described temperature can adopt those skilled in the art to be familiar with, for example thermocouple technology, measures described flue-gas temperature by multiple thermocouples being set in the exit of burner hearth.Above-mentioned actual flue-gas temperature T 4can be the mean value of the multiple points for measuring temperature in exit of above-mentioned burner hearth, the mean value of for example above-mentioned multiple thermocouples, can reflect the actual temperature of described flue gas so more accurately.
Wherein said control method also comprises the described step of adjusting secondary air flow according to furnace outlet flue gas oxygen content.
The described step according to furnace outlet flue gas oxygen content adjustment secondary air flow comprises: setting furnace outlet flue gas standard oxygen content is O 0; Measure furnace outlet flue gas actual oxygen content O; Calculate furnace outlet flue gas oxygen content difference DELTA O=|O-O 0|; Adjust secondary air flow so that Δ O minimum.The various measurement of oxygen content technology that the measurement of described oxygen content can adopt those skilled in the art to be familiar with, for example Zirconia detector technology, measures described oxygen content of smoke gas by multiple detectors being set in the exit of burner hearth.The mean value of the multiple test points in exit that above-mentioned actual oxygen content of smoke gas O can be above-mentioned burner hearth, the mean value of for example above-mentioned multiple detectors, can reflect the actual oxygen content of described flue gas so more accurately.
Here the adjustment control method that it should be noted that above-mentioned primary air flow and/or wind-warm syndrome and secondary air flow can be carried out separately, also can carry out simultaneously.
The invention provides the regulative mode of a kind of wind and Secondary Air, can be real-time adjust according to combustion position in stove, guarantees that the combustion position in burner hearth is in shape all the time.Combustor exit flue-gas temperature has been reacted the combustion position of rubbish on fire grate, if the incineration firing situation above the higher explanation fire grate of flue-gas temperature is better, otherwise combustion position is not good, therefore can improve the combustion position of rubbish on fire grate to wind adjustment according to combustor exit flue-gas temperature.The combustion position that can significantly improve volatile matter according to flue gas temperature of hearth outlet and oxygen content to Secondary Air adjustment, reduces the discharge of the pollutants such as CO.
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment is the object for giving an example and illustrating just, but not is intended to the present invention to be limited in described scope of embodiments.In addition it will be appreciated by persons skilled in the art that the present invention is not limited to above-described embodiment, can also make more kinds of variants and modifications according to instruction of the present invention, these variants and modifications all drop in the present invention's scope required for protection.Protection scope of the present invention is defined by the appended claims and equivalent scope thereof.

Claims (53)

1. a multistage hydraulic mechanical type garbage incinerator, comprise charging aperture, feed fire grate, transmit bed, wind supply system and Secondary Air supply system, described transmit bed is longitudinally divided into five unit, wherein Unit first to fourth is standard block, Unit the 5th is that end lengthens unit, above-mentioned each unit is all by several slip fire grate segments, travelling grate sheet, fixed grate film composition, described five unit are divided into dryer section by described transmit bed entirety along rubbish moving direction, burning zone and after-flame section, it is characterized in that, the every grate furnace screening of described transmit bed is along laterally being driven by an axle, and supported at least three positions by steelframe in the horizontal,
Wherein, described travelling grate sheet is made up of upper and lower Combined fire grate, this upper and lower Combined fire grate comprises upper cover plate and supports the fire grate segment main body of this upper cover plate, described fire grate segment main body comprises rotates end and support end, wherein, the support end of described fire grate segment main body is provided with pin shaft hole, and the rotation end of described fire grate segment main body is provided with elbow.
2. incinerator according to claim 1, is characterized in that, described steelframe comprises and is positioned at the support member of described transmit bed both sides for fixed support driving shaft.
3. incinerator according to claim 2, is characterized in that, the transmit bed below between described transmit bed two side supports arranges at least one intermediate support.
4. incinerator according to claim 1, is characterized in that, described standard block is 5 row's fire-grating chip architectures or 6 row's fire-grating chip architectures.
5. incinerator according to claim 4, it is characterized in that, described 5 row's fire-grating chip architectures are slided by two rows, and fire grate segment, two is arranged fixed grate films and row's travelling grate sheet forms, and it specifically puts in order as slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, fixed grate film or slip fire grate segment, fixed grate film, slip fire grate segment, travelling grate sheet, fixed grate film.
6. incinerator according to claim 4, it is characterized in that, described 6 row's fire-grating chip architectures are slided by two rows, and fire grate segment, two is arranged travelling grate sheets and two row's fixed grate films form, and it specifically puts in order as slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, travelling grate sheet and fixed grate film.
7. incinerator according to claim 1, is characterized in that, described end lengthening unit is slided by four rows, and fire grate segment, is arranged travelling grate sheet and three row's fixed grate films form.
8. incinerator according to claim 7, it is characterized in that, described end lengthens fire grate segment in unit and arranges by the order of slip fire grate segment, travelling grate sheet, fixed grate film, slip fire grate segment, fixed grate film, slip fire grate segment, fixed grate film, slip fire grate segment.
9. incinerator according to claim 1, is characterized in that, described slip fire grate segment, fixed grate film and travelling grate sheet are provided with dust block board.
10. incinerator according to claim 1, is characterized in that, described fixed grate film and slip fire grate segment are provided with elastic wear-resisting scraper plate.
11. incinerators according to claim 1, it is characterized in that, described upper cover plate comprises rotating to be held and support end, wherein, the support end of described upper cover plate is provided with the pin groove corresponding with described pin shaft hole, and the rotation end of described upper cover plate is provided with the cutting ferrule corresponding with described elbow.
12. incinerators according to claim 11, is characterized in that, described pin groove is connected by bearing pin with pin shaft hole, for the support end of fixing described upper and lower Combined fire grate.
13. incinerators according to claim 11, is characterized in that, the mutual interlock of described cutting ferrule and elbow is for the rotation end of fixing described upper and lower Combined fire grate.
14. incinerators according to claim 11, is characterized in that, the hook that the rotation end tail down bending that described cutting ferrule is upper cover plate forms.
15. incinerators according to claim 14, is characterized in that, described hook is font.
16. incinerators according to claim 1, is characterized in that, described elbow is to be arranged at fire grate segment main body to rotate the projection piece of holding, and described projection piece lower end is provided with groove.
17. incinerators according to claim 1, is characterized in that, in described fire grate segment main body, are equipped with floor with the faying face inner side of upper cover plate.
18. incinerators according to claim 1, is characterized in that, described fire grate segment main body is provided with seam.
19. incinerators according to claim 1, is characterized in that, also comprise and stir roller structure, described in stir roller below and there are at least 2 support members that stir roller for supporting this.
20. incinerators according to claim 19, is characterized in that, described support member is support roller station.
21. incinerators according to claim 20, is characterized in that, described support roller station adopts resistant to elevated temperatures roller bearing.
22. incinerators according to claim 19, is characterized in that, described in stir roller and formed by a part of rotating macro-axis.
23. incinerators according to claim 22, is characterized in that, described rotation macro-axis is for supporting and drive travelling grate sheet.
24. incinerators according to claim 1, is characterized in that, the trolley afterbody upper surface of giving of described feed fire grate has the limited support device moving up to trolley for limiting.
25. incinerators according to claim 24, it is characterized in that, described limited support device comprises and being fixed on to the bracing frame on trolley, scroll wheel and rolling shaft, support frame as described above top has groove, described scroll wheel is fixed in described groove by rolling shaft, and scroll wheel can Free-rolling in described groove.
26. incinerators according to claim 24, is characterized in that, the height of described limited support device is lower than the cover plate supporting traverse of giving trolley top.
27. incinerators according to claim 24, is characterized in that, the number of described limited support device is one or more.
28. incinerators according to claim 1, is characterized in that, the width of described feed fire grate is identical with the width of described transmit bed.
29. incinerators according to claim 1, is characterized in that, are also provided with cooling chamber at the dual-side of fire grate.
30. incinerators according to claim 1, is characterized in that, drive the oil pipe of the fluid pressure drive device of fire grate segment to adopt stainless steel sleeve pipe Welding Structure.
31. incinerators according to claim 1, is characterized in that, described fixed grate film is provided with the thermocouple for thermometric.
32. incinerators according to claim 31, is characterized in that, lengthen last row's fixed grate film in unit for end, from the fire grate segment of second, left side, every a fire grate segment, a thermocouple are set; The row's fixed grate film closing on for first module to the Unit four and travelling grate sheet, from the fire grate segment of the 3rd, left side, arranges a thermocouple every 4 fire grate segments.
The control method of 33. 1 kinds of incinerators as described in one of claim 1-32, comprise the control method to air feed system and/or fire grate segment, the control method of wherein said fire grate segment comprises, according to the step of grate length and/or end fixed grate film temperature adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency.
34. methods according to claim 33, is characterized in that, the described step according to grate length adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency comprises:
Established standards grate length is L 0;
Measuring actual grate length is L;
Calculate grate length difference Δ L=│ L-L 0│;
Adjust at least one of feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency so that Δ L minimum.
35. methods according to claim 33, is characterized in that, the described step according to end fixed grate film temperature adjustment feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency comprises:
Setting end fixed grate film normal temperature is T 1 0;
Measuring end fixed grate film actual temperature is T 1;
Calculate end fixed grate film temperature gap Δ T 1=│ T 1-T 1 0│;
Adjust at least one of feed fire grate fltting speed and stroke and slip fire grate segment fltting speed and frequency so that Δ T 1minimum.
36. methods according to claim 35, is characterized in that, the measurement of described end fixed grate film temperature is that the multiple thermocouples by being set on described end fixed grate film are realized.
37. methods according to claim 35, is characterized in that, described end fixed grate film actual temperature T 1for the mean value of the multiple points for measuring temperature in described end fixed grate film place.
The control method of 38. 1 kinds of incinerators as described in one of claim 1-32, comprise the control method to air feed system and/or fire grate segment, the control method of wherein said fire grate segment comprises, according to the set-up procedure of stirring frequency of grate height and/or fixed grate film temperature adjustment travelling grate sheet.
39. according to the method described in claim 38, it is characterized in that, comprises according to the set-up procedure of stirring frequency of grate height adjustment travelling grate sheet:
Established standards grate height is H 0;
Measuring actual grate height is H;
Calculate grate height difference Δ H=│ H-H 0│;
That adjusts travelling grate sheet stirs frequency so that Δ H minimum.
40. according to the method described in claim 38, it is characterized in that, the set-up procedure of stirring frequency of adjusting travelling grate sheet according to fixed grate film temperature comprises:
Setting fixed grate film normal temperature is T 2 0;
Measuring this fixed grate film actual temperature is T 2;
Calculate this fixed grate film temperature gap Δ T 2=│ T 2-T 2 0│;
That adjusts row's travelling grate sheet that this fixed grate film closes on stirs frequency so that Δ T 2minimum.
41. according to the method described in claim 40, it is characterized in that, the measurement of described fixed grate film temperature is that the multiple thermocouples by being set on described fixed grate film are realized.
42. according to the method described in claim 40, it is characterized in that this fixed grate film actual temperature T 2for the mean value of the multiple points for measuring temperature in described fixed grate film place.
43. according to the method described in claim 38, it is characterized in that, after the stirring control method and be included in described travelling grate sheet and dig of travelling grate sheet, fallen after rise to 4 degree fast by 25 degree, cushion by hydraulic oil, then fall after rise at a slow speed to original position.
The control method of 44. 1 kinds of incinerators as described in one of claim 1-32, comprises the control method to air feed system and/or fire grate segment, and wherein said air feed system is for to supplying wind and Secondary Air in described incinerator,
The control method of wherein said air feed system comprises the step of adjusting primary air flow and/or a wind-warm syndrome according to combustor exit flue-gas temperature.
45. according to the method described in claim 44, it is characterized in that, the described step according to combustor exit flue-gas temperature adjustment primary air flow and/or a wind-warm syndrome comprises:
Setting combustor exit standard flue-gas temperature is T 3 0;
Measure the actual flue-gas temperature T of combustor exit 3;
Calculate combustor exit flue-gas temperature difference DELTA T 3=│ T 3-T 3 0│;
Adjust at least one of primary air flow and a wind-warm syndrome so that Δ T 3minimum.
46. according to the method described in claim 45, it is characterized in that the actual flue-gas temperature T of described combustor exit 3for the mean value of the multiple points for measuring temperature in described combustor exit place.
47. according to the method described in claim 44, it is characterized in that, the charging temperature of a described wind is 220 ℃.
The control method of 48. 1 kinds of incinerators as described in one of claim 1-32, comprises the control method to air feed system and/or fire grate segment, and wherein said air feed system is for to supplying wind and Secondary Air in described incinerator,
The control method of wherein said air feed system comprises according to the step of flue gas temperature of hearth outlet and/or furnace outlet flue gas oxygen content adjustment secondary air flow.
49. according to the method described in claim 48, it is characterized in that, the described step according to flue gas temperature of hearth outlet adjustment secondary air flow comprises:
Setting furnace outlet standard flue-gas temperature is T 4 0;
Measure the actual flue-gas temperature T of furnace outlet 4;
Calculate flue gas temperature of hearth outlet difference DELTA T 4=│ T 4-T 4 0│;
Adjust secondary air flow so that Δ T 4minimum.
50. according to the method described in claim 49, it is characterized in that the actual flue-gas temperature T of described furnace outlet 4for the mean value of the multiple points for measuring temperature in described furnace outlet place.
51. according to the method described in claim 48, it is characterized in that, the described step according to furnace outlet flue gas oxygen content adjustment secondary air flow comprises:
Setting furnace outlet flue gas standard oxygen content is O 0;
Measure furnace outlet flue gas actual oxygen content O;
Calculate furnace outlet flue gas oxygen content difference DELTA O=│ O-O 0│;
Adjust secondary air flow so that Δ O minimum.
52. according to the method described in claim 51, it is characterized in that, described furnace outlet flue gas actual oxygen content O is the mean value of the multiple test points in described furnace outlet place.
53. according to the method described in claim 48, it is characterized in that, the charging temperature of a described wind is 220 ℃.
CN201210096588.6A 2012-04-01 2012-04-01 Multistage hydraulic mechanical garbage incinerator and control method for same CN102607037B (en)

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