CN108930964B - A kind of refuse pyrolysis gasification furnace rotary fire grate device - Google Patents

A kind of refuse pyrolysis gasification furnace rotary fire grate device Download PDF

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Publication number
CN108930964B
CN108930964B CN201810574083.3A CN201810574083A CN108930964B CN 108930964 B CN108930964 B CN 108930964B CN 201810574083 A CN201810574083 A CN 201810574083A CN 108930964 B CN108930964 B CN 108930964B
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CN
China
Prior art keywords
fire grate
cooling water
gasification furnace
pyrolysis gasification
grate
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CN201810574083.3A
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Chinese (zh)
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CN108930964A (en
Inventor
李智
孙强林
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Shanghai Ancient Blue Environmental Engineering Co Ltd
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Shanghai Ancient Blue Environmental Engineering Co Ltd
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    • 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
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • 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
    • 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
    • F23G5/44Details; Accessories
    • F23G5/442Waste feed arrangements
    • F23G5/444Waste feed arrangements for solid waste
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00Furnace arrangements
    • F23G2203/105Furnace arrangements with endless chain or travelling grate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00Control
    • F23G2207/50Cooling fluid supply

Abstract

The invention discloses a kind of refuse pyrolysis gasification furnace rotary fire grate devices, including circuiting sequentially connected drying unit, fan house, pyrolysis gasification furnace, dual firing chamber and heat exchanger, pyrolysis gasification furnace includes the furnace grate driving system of fire grate device and driving fire grate device rotation;Fire grate device is horizontally placed on the middle part of burner hearth, fire grate device includes the annular fire grate that basic fire grate, multiple adjustable fire grate arms and multiple diameters become larger, multiple adjustable fire grate armlets are to being distributed in basic fire grate edge, annular fire grate is detachably set to adjustable fire grate arm, and basic fire grate is the center of each annular fire grate.Fire grate device of the present invention is detachable mechanism, it transports and easy for installation, the distance between but also be adjustable two neighboring annular fire grate, and then it can according to need to adjust the gap size of fire grate, furnace grate driving system can also drive fire grate device to rotate, pyrolytic gasification is high-efficient, additionally it is possible to prevent bottom lime-ash coking, improve deslagging effect.

Description

A kind of refuse pyrolysis gasification furnace rotary fire grate device
Technical field
The present invention relates to technical field of waste treatment, in particular to a kind of refuse pyrolysis gasification furnace rotary fire grate device.
Background technique
As process of modernization constantly accelerates, crude waste waste discharge capacity is growing day by day, traditional garbage disposal Method causes serious soil and atmosphere pollution, it is difficult to adapt to sustainable development, rubbish is often used in current many garbage disposals Rubbish pyrolysis gasifying device carries out pyrolysis and carbonization at low temperature gasification to it, makes organic matter using the thermal instability of organic matter in garbage The process that cracking forms various new fuel gas is generated, it is more environmentally-friendly compared to incineration method, realize that sustainable energy utilizes.But mesh The refuse pyrolysis gasification installation of preceding mainstream in the market is primarily present following disadvantage:
Drying structure, it is traditional one is being dried in furnace, one is the drum-type drying equipment of pretreating zone, dried in furnace The shortcomings that be that the refuse gasification time is slow, and after rubbish enters in furnace, as the temperature rises, and a large amount of vapor generates, meeting The combustible gas of refuse pyrolysis generation is diluted, the temperature of dual firing chamber is caused to decline.And drum-type drying equipment because be hot wind into Collet drying is dried rubbish through steel plate, is not contacted directly with rubbish, and drying efficiency is low, and thermal losses is very big, and dries The operating cost of equipment is also big, and landfill leachate also bad processing.
Fire grate is the main component of pyrolysis gasification furnace, but the fire grate currently used for pyrolysis gasification furnace it is generally existing manufacture at This height, the problem of cannot supplying oxygen to burning, although some increase some improvement in functionality, manufacture is again very complicated.
Feed intake structure, and conventionally employed is open type charging, even if some occasions are in security consideration and also take closing Charging, but still without solving sealing problem, air is had while charging or work and enters pyrolysis gasification furnace, is caused non-negative Work is pressed, has smoke spillage during pyrolytic gasification, affects pyrolytic gasification effect, also have gas explosion sometimes.
Fire observation device, common fire observation device is usually by flame-observing hole transparent cover cap, asbestos rubber pad, pyroceram piece, sight fire The composition such as hole pipe has an other burner glass surface of seeing in order to prevent to cover tar, dust, has installed baffle additional.Disadvantage: (1) dust protection baffle influences observation sight.Dust protection baffle is typically all to be mounted on the center for seeing fire tube, affects observation Sight.(2) without provision for thermal insulation, the generation of safety accident is easily led to.Seeing fire tube is directly protruding into kiln, usually selection metal material Material production, it is thermally conductive fast, entire fire observation device can be made to form high temperature, be easy to cause in the use processes such as observation, replacement glass boiling hot Hurt safety accident.(3) it is narrow to see fiery visual angle.Sight fire tube is straight tube structure, so that seeing, fiery visual angle is narrow, and the range for seeing fire is small.
External air flue, the common typically no independent gas flue of gasification furnace, is all air-introduced machine under the action of air-introduced machine, directly The gasification layer from rubbish is connect, extracts gasification furnace out by each layer of rubbish.Also a small amount of gasification furnace sets built-in air flue, but due to It is influenced to will cause flue gas by in-furnace temperature to burn in gasification furnace, affects gasification result, while built-in air flue also affects The working conditions such as spice of the rubbish in gasification furnace.Shortcoming and defect: (1) flow of flue gas speed is slow.Due to by gasification layer upper layer The influence of rubbish stacking pressure causes flue gas discharge to be obstructed, circulates unsmooth, draw speed is slow.(2) gasification efficiency is low.Due to flue gas stream Lead to unsmooth, flowing velocity is slow, some has just been burned off the combustible gas for causing to gasify out in gasification furnace, causes simultaneously The in-furnace temperature that gasifies is excessively high, causes adverse effect to gasification result.(3) fume treatment effect is influenced, by flow of flue gas speed Slowly, the low influence of gasification efficiency, the flammable tolerance that flue gas enters combustion chamber is inadequate, causes chamber temperature too low, has in flue gas Evil ingredient cannot be destroyed, and influence the effect of fume treatment.
Summary of the invention
According to an aspect of the invention, there is provided a kind of refuse pyrolysis gasification furnace rotary fire grate device, including successively follow Ring connected drying unit, fan house, pyrolysis gasification furnace, dual firing chamber and heat exchanger, pyrolysis gasification furnace includes fire grate device and drive The furnace grate driving system of dynamic fire grate device rotation;Fire grate device is horizontally placed on the middle part of burner hearth, and fire grate device includes basic furnace Row, the annular fire grate that becomes larger of multiple adjustable fire grate arms and multiple diameters, multiple adjustable fire grate armlets are to being distributed in basic furnace Edge is arranged, annular fire grate is detachably set to adjustable fire grate arm, and basic fire grate is the center of each annular fire grate.
Above-mentioned refuse pyrolysis gasification furnace fire grate device is detachable mechanism, is transported and easy for installation, but also be adjustable The distance between two neighboring annular fire grate, and then can according to need to adjust the gap size of fire grate, furnace grate driving system Fire grate device can also be driven to rotate, pyrolytic gasification is high-efficient, additionally it is possible to prevent bottom lime-ash coking, improve deslagging effect.
In some embodiments, each annular fire grate includes the multiple arcs fire grate section being circularly set, each arc Fire grate section is all set between the adjustable fire grate arm of adjacent two.Thus fire grate device is detachable mechanism, transport and installation side Just.
In some embodiments, each adjustable fire grate arm is evenly equipped with quantity and annular furnace along adjustable fire grate arm axis direction Identical multiple decks are arranged, each annular fire grate uniform one is correspondingly arranged in deck;Each deck is along the radial direction side of fire grate device To multiple connection parts are successively arranged, it is symmetrical axisymmetric a pair of that each connection parts, which include with adjustable fire grate arm, One linking part;The distance between opposite corresponding first connecting portion on two neighboring adjustable fire grate arm on corresponding deck phase Together, arc fire grate section end is equipped with the second connecting portion matched with first connecting portion.Thereby, it is possible to adjust two neighboring annular The distance between fire grate, and then can according to need to adjust the gap size of fire grate.
In some embodiments, first connecting portion is the first bayonet, and second connecting portion is the cooperated with the first bayonet One fixture block.
In some embodiments, basic fire grate edge is equipped with third interconnecting piece, and adjustable fire grate arm end is equipped with and third 4th interconnecting piece of interconnecting piece cooperation;Third interconnecting piece is the second bayonet, and the 4th interconnecting piece is second cooperated with the second bayonet Fixture block.
In some embodiments, basic fire grate includes fire grate core, fire grate radial canal and furnace grate tube, and the shape of basic fire grate is Umbrella shape or circle, adjustable fire grate arm are located at the extending direction of basic fire grate radial canal, and third connecting portion is in the end of fire grate radial canal.
In some embodiments, furnace grate driving system includes fire grate axis, driving device and the first cooling device, fire grate axis One end connects fire grate device, and driving device drives the rotation of fire grate axis, and the first cooling device includes cooling cover, and cooling cover is arranged In fire grate axis, cooling cover side wall is equipped with the first cooling water cavity, is equipped with the first cooling water pipe, cooling cover in the first cooling water cavity Bottom is respectively equipped with the first cooling water inlet and the first cooling water outlet, and the first cooling water pipe bottom end and the first cooling water inlet connect Logical, the first cooling water pipe top is located at the top of the first cooling water cavity, and the first cooling water pipe top is equipped with the first opening, and first is cooling Water out is connected to the first cooling water cavity.Thereby, it is possible to drive fire grate device to rotate, bottom lime-ash coking is prevented, improves deslagging Effect, and cooling cover can open isolation between the hot gas in pyrolysis gasification furnace and fire grate axis, prevent fire grate axis temperature mistake It is high.
In some embodiments, driving device is set to the outside of pyrolysis gasification furnace, and driving device includes motor and biography Moving part, for motor by driving member drive fire grate axis, driving member is belt, chain or gear.Driving device not will receive heat as a result, Solve the influence of hot gas in gasification furnace.
In some embodiments, further include the second cooling device, be equipped with the second cooling water cavity inside fire grate axis, second is cold But water cavity bottom end be equipped with second opening, the second cooling device include the second cooling water pipe and rotary joint, the second cooling water pipe from Second opening is extend into the second cooling water cavity;At the top of second cooling water pipe at the top of the second cooling water cavity, and it is equipped with third Opening;Rotary joint is sheathed on the second cooling water pipe, and is tightly connected with the second opening.Thus, it is possible to progress inside fire grate axis It cools, prevents fire grate axis temperature excessively high and damage.
Detailed description of the invention
Fig. 1 is a kind of overall structure signal of refuse pyrolysis gasification furnace rotary fire grate device of an embodiment of the present invention Figure;
Fig. 2 is a kind of structural schematic diagram of the pyrolysis gasification furnace of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 1;
Fig. 3 is a kind of structural schematic diagram of the drying unit of refuse pyrolysis gasification furnace rotary fire grate device shown in FIG. 1;
Fig. 4 is a kind of structural schematic diagram of the fire grate device of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 2;
Fig. 5 is a kind of top view of the fire grate device of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 4;
Fig. 6 is a kind of structural schematic diagram of the deck of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 4;
Fig. 7 is a kind of structural representation of the fire grate driving device of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 4 Figure;
Fig. 8 is a kind of structural representation of the sealed feeder unit of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 2 Figure;
Fig. 9 is a kind of section knot of sealed feeder unit of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 2 Structure schematic diagram;
Figure 10 is a kind of cross section structure signal of fire observation device of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 2 Figure;
Figure 11 is a kind of overall structure signal of fire observation device of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 2 Figure;
Figure 12 is a kind of structural representation of the external airway device of refuse pyrolysis gasification furnace rotary fire grate device shown in Fig. 2 Figure;
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1~Figure 12 schematically shows a kind of a kind of refuse pyrolysis gasification furnace rotation of embodiment according to the present invention Converter arranging device.As shown, the refuse pyrolysis gasification furnace rotary fire grate device include circuit sequentially connected drying unit 1, Fan house 2, pyrolysis gasification furnace 3, dual firing chamber 4 and heat exchanger 5.
Pyrolysis gasification furnace 3 includes fire grate device 35 and the furnace grate driving system 37 for driving the rotation of fire grate device 35, fire grate dress Set 35 middle parts for being horizontally placed on burner hearth 31.Fire grate device 35 is horizontally placed on the middle part of burner hearth 31, and fire grate device 35 includes base The annular fire grate 3503 that this fire grate 3501, multiple adjustable fire grate arms 3502 and multiple diameters become larger, multiple adjustable fire grate arms 3502 circumferential directions are distributed in basic 3501 edge of fire grate, and annular fire grate 3503 is detachably set to adjustable fire grate arm 3502, basic furnace Center of the row 3501 in each annular fire grate 3503.
Each annular fire grate 3503 includes the multiple arcs fire grate section 3504 being circularly set, that is to say, that multiple arcs Fire grate section 3504 can surround an annular, and each arc fire grate section 3504 is all set in the adjustable fire grate arm 3502 of adjacent two Between.
It is identical with annular fire grate 3503 that each adjustable fire grate arm 3502 along adjustable fire grate arm axis direction is evenly equipped with quantity Multiple decks 3505, deck 3505 can be fixedly installed in adjustable fire grate arm 3502, and each annular fire grate 3503 corresponds It is set to deck 3505, that is to say, that annular fire grate 3503 is connect by deck 3505 with adjustable fire grate arm 3502.
Each deck 3505 is successively arranged multiple connection parts, each linking part group along the radial direction of fire grate device 35 Part includes with adjustable fire grate arm 3502 for symmetrical axisymmetric a pair of first linking part 3506;Two neighboring adjustable fire grate arm The distance between opposite corresponding first connecting portion 3506 on 3502 on corresponding deck 3505 is identical, from there through will be annular Fire grate section 3504 is mounted on first connecting portion 3506 different on same deck 3505, can adjust two neighboring annular fire grate The distance between 3503.3504 end of arc fire grate section is equipped with the second connecting portion 3507 matched with first connecting portion 3506.
First connecting portion 3506 is the first bayonet for being opened in deck 3505, and second connecting portion 3507 is to be opened in arc furnace The first fixture block arranging 3504 both ends of section and capable of cooperating with the first bayonet, is clasped between the first fixture block and the first bayonet.
Basic 3501 edge of fire grate is equipped with third interconnecting piece 3508, and adjustable 3502 end of fire grate arm is equipped with and third interconnecting piece 4th interconnecting piece 3509 of 3508 cooperations;Third interconnecting piece 3508 is the second bayonet, and the 4th interconnecting piece 3509 is adjustable to be opened in 3502 end of fire grate arm and the second fixture block cooperated with the second bayonet.It is to be clasped between second fixture block and the second bayonet.
Basic fire grate 3501 includes fire grate core 35011, fire grate radial canal 35012 and furnace grate tube 35013, basic fire grate 3501 Shape is umbrella shape or circle, that is to say, that 35012 circumferential direction of fire grate radial canal is distributed in 35011 edge of fire grate core, fire grate radial canal 35012 End can be fixedly connected between fire grate core 35011, furnace grate tube 35013 be ring structure, furnace grate tube 35013 be fixedly mounted In on fire grate radial canal 35012.Adjustable fire grate arm 35022 is located at the extending direction of basic fire grate radial canal 35012, third interconnecting piece 3508 are located at the one end of fire grate radial canal 35012 not connecting with fire grate core 35011.
Furnace grate driving system 37 includes fire grate axis 3701, driving device 3702 and the first cooling device 3703, fire grate axis 3701 one end connect fire grate device 35.Specifically, fire grate axis 3701 is vertically arranged, and top is keyed in fire grate device 35 Fire grate core 35011.In the present embodiment, partition is fixedly installed in pyrolysis gasification furnace 3, partition separates burner hearth 31, furnace Thorax 31 is located above partition, and fire grate axis 3701 is installed on partition by bearing, and the first cooling device 3703 is located in burner hearth 31. Driving device 3702 drives fire grate axis 3701 to rotate.First cooling device 3703 includes cooling cover 3704, cooling cover 3704 It is sheathed on fire grate axis 3701, is flexibly connected between cooling cover 3704 and fire grate axis 3701, cooling cover 3704 can pass through Bracket is fixedly installed in the inside of pyrolysis gasification furnace 3.3704 side wall of cooling cover is integrally formed with the first cooling water cavity 3705, and The first cooling water pipe 3706 is fixedly installed in one cooling water cavity 3705, flanged joint has first to 3704 bottom of cooling cover respectively Cooling water inlet 3707 and the first cooling water outlet 3708,3706 bottom end of the first cooling water pipe and the first cooling water inlet 3707 connect Logical, 3706 top of the first cooling water pipe is located at the top of the first cooling water cavity 3705, and 3706 top of the first cooling water pipe offers the One opening 3709, the first cooling water outlet 3708 is connected to the first cooling water cavity 3705.In use, cooling water is from the first cooling water Import 3707 enters, and comes out from first opening 3709 at 3706 top of the first cooling water pipe and enters the first cooling water cavity 3705, finally it is discharged from the first cooling water outlet 3708.Cooling cover can be by the hot gas and fire grate in pyrolysis gasification furnace as a result, Isolation is opened between axis, prevents fire grate axis temperature excessively high.
Driving device 3702 is set to the outside of pyrolysis gasification furnace 3, and driving device 3702 includes motor 3710 and driving member 3711, for motor 3710 by 3711 drive fire grate axis 3701 of driving member, driving member 3711 is belt or gear.Pyrolysis gasification furnace 3 Side wall can offer the opening passed through for driving member 3711.
It further include the second cooling device 3712, integrally formed with the second cooling water cavity 3713 inside fire grate axis 3701, second 3713 bottom end of cooling water cavity offers the second opening, and the second cooling device 3712 includes the second cooling water pipe 3715 and rotary joint 3716, the second cooling water pipe 3715 is extend into the second cooling water cavity 3713 from the second opening;Second cooling water pipe, 3715 top Close to 3713 top of the second cooling water cavity, and it is equipped with third opening 3714, the bottom end of the second cooling water pipe 3715 is water inlet end;Rotation Adapter 3716 is sheathed on the second cooling water pipe 3715, and is tightly connected with the second opening, and rotary joint 3716 has water outlet, Water outlet is connected to the second cooling water cavity 3713.When work, cooling water enters the second cooling water cavity from the second cooling water pipe 3715 3713, and escaped and enter to the second cooling water cavity 3713, finally from the third opening 3714 at 3715 top of the second cooling water pipe It is discharged from the water outlet of rotary joint 3716.Thus, it is possible to prevent fire grate axis temperature mistake to cooling down inside fire grate axis It is high and damage.
Pyrolysis gasification furnace 3 can also include burner hearth 31, sealed feeder unit 32, fire observation device 34, deslagging device 36 and outer Airway device 33 is connect, burner hearth 31 is located at the inside of the pyrolysis gasification furnace 3, and sealed feeder unit 32 is located at pyrolysis gasification furnace 3 Top, fire observation device 34 are located on the outer wall of pyrolysis gasification furnace 3, and deslagging device 36 is located at the bottom of pyrolysis gasification furnace 3, heat exchanger 5 are equipped with inlet of cold air 51, exhanst gas outlet 53 and hot air outlet 52, and dual firing chamber 4 is connected with heat exchanger 5, and the heat is empty Gas outlet 52 is connected with the drying unit 1.
Rubbish is carried out drying pretreatment by above-mentioned refuse pyrolysis gasification furnace rotary fire grate device, drying unit 1, and drying produces Raw foul smell etc. is extracted into pyrolysis gasification furnace 3 by fan house 2, and the rubbish of drying is transferred in pyrolysis gasification furnace 3 and is pyrolyzed, Be pyrolyzed the flue gas etc. generated and be all pumped down in dual firing chamber 4 and carry out full combustion and generate heat, into heat exchanger 5, with cold air into Row heat exchange, the hot-air after heat exchange are entered in drying unit 1 and then dry Other Waste, recycled with this, and rubbish is taken full advantage of The gas and energy generated during rubbish pyrolytic gasification, significantly reduces environmental pollution, more environmentally-friendly, and sustainable use provides Source meets the environmental protection concept of sustainable development.
Drying unit 1 includes drying material pond 11, air compartment 12, discharge pipe 14 and blast pipe 13, the air compartment 12 be it is multiple, it is more A air compartment 12 is located at the outer pars intramuralis of the drying material pond 11, and blast pipe 13 is connected with the hot air outlet 52 of heat exchanger 5, heat Wind enters in air compartment 12 from the blast pipe 13, then enters in the drying material pond 11 from discharge pipe 14.Drying unit 1 It further include driving grab bucket, driving grab bucket includes grab bucket portion 15 and track 16, and grab bucket portion 15 can be moved along track 16, track 16 Positioned at the top of drying unit 1, fan house 2 and pyrolysis gasification furnace 3.Air compartment 12 includes being located at drying 11 side wall of material pond and bottom two Place.Water positioned at the rubbish exudation of drying material pond 11 drops onto the air compartment 12 of bottom from bottom discharge pipe 14, exudation Water is oven-dried in turn.Blast pipe 13 is connected to the air compartment 12 for being located at bottom, and the height that blast pipe is located at the end in air compartment 12 is high In the bottom surface of bottom plenum 12.1 region of drying unit is the pretreatment workshop of sealing, can be opened up at the top of pretreatment workshop For the opening of driving grab bucket disengaging, it is equipped with air-inlet window 10 close to 2 side of fan house at it, hollow out filter screen is housed on air-inlet window 10 101, interface channel is closed structure between fan house 2 and pyrolysis gasification furnace 3.Driving grab bucket is periodically turned under operator control Rubbish in dynamic pond, reaches better drying effect;And the rubbish of drying can be transferred into sealed feeder unit 32 by grab bucket In.Primary air fan in fan house 2 after secondary air fan starts, continuously pulls the foul smell of pretreatment workshop, forms Tiny structure, foul smell will not be excessive.Outside has vehicle to send garbage feeding, opens pretreated electrically operated gate, then shuts after car charging, Garbage truck starts to unload rubbish to drying pool, after unsnatching, opens gate, garbage truck exits, and gate is shut automatically, because being negative pressure State, the opening and closing gate of short time do not have foul smell evolution, while supplementing fresh air for workshop, ensure that plant environment is no different Taste.Drying structure can allow rubbish directly to contact with hot wind, save drying time, in the case where not increasing energy consumption, drying Efficiency is obviously improved, and has saved the energy, and percolate has also obtained effective evaporation, ensure that refuse pyrolysis gasifies Furnace 3 stablizes gasification, accelerates the firing rate of rubbish, improves the production capacity of garbage disposal.
Sealed feeder unit 32 includes hopper 321, brake application board group 322, feed bin 323, lower flashboard group 324,325 and of driving portion Sealing 326, hopper 321 are located at the top of brake application board group 322, and feed bin 323 is located at the lower section of hopper 321,322 He of brake application board group Lower flashboard group 324 is located at the upper and lower of feed bin 323, and brake application board group 322 and lower flashboard group 324 are equipped with sealing 326.On Flashboard group 322 and lower flashboard group 324 include flashboard 3221 and flashboard frame 3222, are equipped between flashboard 3221 and flashboard frame 3222 Sealing 326, sealing 326 include that side seal 3261, preceding sealing 3262 and external seal 3263, flashboard frame 3222 are equipped with guide rail 32223, flashboard bracket 32222 and sealing clamp 32221, flashboard bracket 32222 are located at the periphery of flashboard frame 3222, sealing clamp 32221 connect with sealing 326, and preceding sealing 3262 and external seal 3263 are fixing seal, and side seal 3261 is to be slidingly sealed, side Sealing 3261 can be slided on guide rail 32223 simultaneously with flashboard 3221.Hopper 321 is installed on the top of brake application board group 322, expands Big feed inlet guarantees that material is not scattered outward in order to concentrate charging;In normal work, brake application board group 322 and lower flashboard group 324 must not open simultaneously, to ensure that gasification furnace is constantly in closed working environment;Ensure that lower flashboard group 324 is in front of charging Closed state, otherwise, upper flashboard 3221 can not be opened, and when guaranteeing charging, work negative pressure is unaffected in furnace, and smokeless is let out Leakage.After confirmation, the flashboard 3221 of brake application board group 322 to be opened by drive cylinder, material enters feed bin 323 by hopper 321, It falls on lower flashboard 3221.Inlet amount is controlled by control grab bucket volume or other charging equipments, to ensure the volume fed It must not exceed 323 volume of feed bin;After feeding, upper flashboard 3221 is closed, again opens lower flashboard 3221 after closing in place, The upper and lower movement of flashboard 3221, from lock control, has one group of flashboard 3221 to be in close state forever using position with guarantee;Upper flashboard After 3221 close, lower flashboard 3221 is opened, material is fallen into gasification furnace, then lower flashboard 3221 is closed.Sealed feeder unit 32 brake application board group 322 and lower flashboard group 324 design, facilitates operation control;When charging, brake application board group 322 and lower flashboard group 324 It alternately opens, close, keep being in close state not less than one group of flashboard 3221, to ensure that burner hearth 31 is in the building ring of sealing Border;Upper lower flashboard 3221 has sealing 326, and to ensure that no air enters gasification furnace, gasification furnace smokeless is let out from flashboard 3221 Leakage;From lock control, securely and reliably;321 wide-angle of hopper expands feed inlet, and charging equipment is adaptable, is dissipated when feeding without material It falls.
Fire observation device 34 includes flame-observing hole transparent cover 341, asbestos rubber pad 342, pyroceram piece 343, shaft 346, rotation It changes hands handle 345, arc fireguard 344, appearance fire tube 347, thermal insulation layer 348, see burner 349 and interior wide-angle sight fire tube 3410, In 347 mouthfuls of ends of appearance fire tube are equipped with flame-observing hole transparent cover 341 and pyroceram piece 343, pyroceram piece 343 and flame-observing hole transparent cover Annular asbestos rubber pad 342 is padded between 341 and the faying face of appearance fire tube 347, appearance fire tube 347 and interior wide-angle see fire tube Thermal insulation layer 348 is equipped between 3410, appearance fire tube 347 installs one piece of arc fireguard 344, arc gear at close up burner 349 Fiery plate 344 is fixed on the tube wall of appearance fire tube 347 by shaft 346, and rotating handle 345 is installed in shaft 346.Flame-observing hole is saturating Lid 341 and appearance fire tube 347 use thread connection, securely and reliably, easy disassembly, replacement and cleaning glass, replacement asbestos rubber Pad 342 is also more convenient;Pyroceram piece 343 is installed between flame-observing hole transparent cover 341 and appearance fire tube 347, and with annular stone Celloidin pad is every lining, and for sealing and protecting pyroceram piece 343, permeation high temperature resistant sheet glass 343 is it can be observed that burner hearth 31 Interior combustion case;Fireguard 344 uses arc Circular plate structure, and radian is slightly less than 347 outer diameter of appearance fire tube, the circle of fireguard 344 Diameter is slightly less than 347 internal diameter of appearance fire tube, is installed on by the position of close up burner 349, and specific installation is by shaft 346 and outer It sees fire tube 347 to couple, there are connection holes in 347 outer circle position of appearance fire tube, and shaft 346 is equipped with rotating handle 345 for controlling gear fire The rotation of plate 344, fireguard 344 are eccentrically rotated.When needing to see fire, 344 horizontal opening of fireguard, close to appearance fire tube 347 Inner wall, to ensure that viewing area is as big as possible;It sees fire end fireguard 344 and is in plumbness, by pyroceram and kiln It inside separates, effectively prevent flame, dust attack glass, glass surface area is caused to focus oil, dust etc.;Appearance fire tube 347 is installed On the outside of kiln, interior wide-angle is seen fire tube 3410 and is installed on the inside of kiln, has between appearance fire tube 347 and interior wide-angle sight fire tube 3410 Thermal insulation layer 348 prevents the high temperature that burning generates in kiln to be transmitted to appearance fire tube 347, prevents safety accident;If kiln There is flame retardant coating in inside, then interior wide-angle flame-observing hole can be formed directly using fire resisting pouring material, and interior wide-angle angle determines as needed, and one As be set as 120 °;When necessary, because operation needs to open flame-observing hole transparent cover 341, fireguard 344, logical stick is put in into sight fire Material such as stirs, dredge at the generally impossible operation of gasification furnace in mouthful 349 pairs of kilns.It burns with anti-eyes, see flint glass It is not easy to cover the influence sight substance such as dust, tar, it is good to see fiery effect;34 port of fire observation device is opened and replacement glass, sealing Circle is convenient;It solves and blocks line-of-sight problems;Interior wide-angle design expands the fiery visual angle of sight, increases range of observation;Design on thermal insulation, Solves safety problem caused by heat transfer;Combustible substance in kiln can be stirred when required by burner 349 is seen, be dredged It is logical to wait operation.
External airway device 33 includes external air flue 331, outer heat insulation layer 336 and exhaust gases passes 332, and external air flue 331 is Enclosed construction, external air flue 331 are equipped with tracheal entrance 333 and air passage outlet 334, and tracheal entrance 333 is located at air passage outlet 334 Lower section,.Outer heat insulation layer 336 is located on the outer wall of pyrolysis gasification furnace 3.External 33 tracheal entrance 333 of airway device is arranged in rubbish Dead band above the drying layer of rubbish is arranged in refuse furnace in processing gasification interval, air passage outlet 334, and gasification layer major part flue gas exists Enter external air flue 331 below external air flue 331 under air-introduced machine effect, is imported from air passage outlet 334 above external air flue 331 To above drying garbage layer, the flue gas of flue gas and drying layer that companion gasification layer minority escapes up together, is acted in air-introduced machine Under from gasification furnace exhanst gas outlet 335 enter combustion furnace.Outer heat insulation layer 336 has heat preservation, heat insulation structural, using castable refractory or water It is jacket structured, to reduce heat radiation.
After the present invention uses the drying unit 1, more pervious roller dryer is compared, drying rubbish in the unit time Quantity improves 20 times, and drying efficiency has obtained larger promotion, and the moisture content of rubbish falls below 30% from entered furnace originally 45%, And percolate has obtained effective evaporation, is not required to add device for treating leachate again, the peculiar smell in entire workshop be under control and Processing, ensure that the improvement of the internal environment of entire refuse disposal plant area, eliminates roller dryer high-power driving motor Operation energy consumption.
Fire grate device 35 can also be rotary fire grate, including basic fire grate 3501, adjustable fire grate arm 3502 and moving grate 3503, basic fire grate 3501 includes 35011 fire grate radial canal 35012 of fire grate core and furnace grate tube 35013, the shape of basic fire grate 3501 It can be umbrella shape or circle, adjustable fire grate arm 35022 is located at the extending direction of basic fire grate radial canal 35012, and moving grate 3503 connects It is connected on adjustable fire grate arm 3502.Adjustable fire grate arm 3502 is installed on the fire grate radial canal 35012 of basic fire grate 3501, for pacifying Fill moving grate 3503.The length of adjustable fire grate arm 3502 according to stove sizes it needs to be determined that.Adjustable fire grate arm 3502 with it is basic It is connected, has not only been facilitated but also reliable using buckle-type between fire grate 3501.Moving grate 3503 is installed on adjustable fire grate arm 3502, living Dynamic fire grate 3503 is engaged with the card hole on adjustable fire grate arm 3502, and the quantity and spacing of moving grate 3503 can be according to lime-ash sizes It determines and adjusts.In actual installation, removable tune rotary fire grate is detachably adjusted and is replaced.
It seals into charging device stable feature reliable for operation, feeds existing sealing to solve existing pyrolysis gasification furnace 3 Problem.
Fire observation device 34 can observe combustion position in kiln, and observation visual angle is big, and effect is good, while can be in normal combustion The operation that general gasification furnace cannot be completed such as disturbed, dredged under state to material in furnace.
External air flue 331 is designed using external, solves the problems such as flow of flue gas is unsmooth, gasification efficiency is low, while To guarantee that later period fume treatment effect provides the guarantee of gasifying section early period.Pyrolysis gasification furnace 3 is set to solve flow of flue gas not Freely, the problems such as gasification efficiency is low, while also the guarantee of gasifying section early period is provided for guarantee later period fume treatment effect.Simultaneously Have many advantages, such as to manufacture convenience, low manufacture cost.
More than, there is drying unit, deslagging device, fire grate dress in refuse pyrolysis gasification furnace rotary fire grate device of the invention It sets, seal into charging device, fire observation device and external airway device;Wherein, drying structure can allow rubbish directly to connect with hot wind Touching, saves drying time, and without increasing energy consumption, drying efficiency is obviously improved, and has saved energy, and Percolate has also obtained effective evaporation, ensure that refuse pyrolysis gasification furnace stablizes gasification, accelerates the firing rate of rubbish, mention The high production capacity of garbage disposal;
Sealed feeder unit has structure simple, easy to make, stable feature reliable for operation, to solve existing pyrolysis Gasification furnace feeds existing sealing problem, and No leakage is more environmentally friendly.
Fire observation device can observe safely combustion position in kiln, and the fiery effect of sight is good, and the fiery visual angle of sight is big, the fiery glass of protection sight Glass is taken into account when solving burning to the impossible operation of the general gasification furnace such as agitation, dredging of material in furnace.
External air flue is designed using external, solve flow of flue gas it is unsmooth caused by combustible gas is burned, gasification efficiency The problems such as low, while also the guarantee of gasifying section early period is provided for guarantee later period fume treatment effect.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention It encloses.

Claims (7)

1. a kind of refuse pyrolysis gasification furnace rotary fire grate device, which is characterized in that including circuiting sequentially connected drying unit (1), fan house (2), pyrolysis gasification furnace (3), dual firing chamber (4) and heat exchanger (5), the pyrolysis gasification furnace (3) include fire grate dress Set the furnace grate driving system (37) of (35) and driving fire grate device (35) rotation;Pyrolysis gasification furnace (3) includes burner hearth (31), The fire grate device (35) is horizontally placed on the middle part of the burner hearth (31), and the fire grate device (35) includes basic fire grate (3501), the annular fire grate (3503) that multiple adjustable fire grate arms (3502) and multiple diameters become larger, multiple adjustable furnaces Row's arm (3502) circumferential direction is distributed in basic fire grate (3501) edge, and the annular fire grate (3503) is detachably set to described adjustable Fire grate arm (3502), the basic fire grate (3501) are in the center of each annular fire grate (3503);Each annular fire grate It (3503) include the multiple arcs fire grate section (3504) being circularly set, each arc fire grate section (3504) is all set in phase Between two adjacent adjustable fire grate arms (3502);Each adjustable fire grate arm (3502) is uniformly distributed along adjustable fire grate arm axis direction There are quantity and the identical multiple decks (3505) of the annular fire grate (3503), each described annular fire grate (3503) uniform a pair The deck (3505) should be set to;Each deck (3505) is successively arranged along the radial direction of the fire grate device (35) Multiple connection parts, it is symmetrical axisymmetric one that each connection parts, which include with the adjustable fire grate arm (3502), To the first linking part (3506);Opposite correspondence on the two neighboring adjustable fire grate arm (3502) on corresponding deck (3505) The distance between first connecting portion (3506) it is identical, the arc fire grate section (3504) end is equipped with and the first connecting portion (3506) second connecting portion (3507) matched.
2. a kind of refuse pyrolysis gasification furnace rotary fire grate device according to claim 1, which is characterized in that described first connects Socket part (3506) is the first bayonet, and the second connecting portion (3507) is the first fixture block cooperated with the first bayonet.
3. a kind of refuse pyrolysis gasification furnace rotary fire grate device according to claim 1, which is characterized in that the basic furnace It arranges (3501) edge and is equipped with third interconnecting piece (3508), adjustable fire grate arm (3502) end is equipped with and the third interconnecting piece (3508) the 4th interconnecting piece (3509) cooperated;The third interconnecting piece (3508) is the second bayonet, the 4th interconnecting piece (3509) the second fixture block to cooperate with second bayonet.
4. a kind of refuse pyrolysis gasification furnace rotary fire grate device according to claim 3, which is characterized in that the basic furnace Arranging (3501) includes fire grate core (35011), fire grate radial canal (35012) and furnace grate tube (35013), the shape of basic fire grate (3501) For umbrella shape or circle, adjustable fire grate arm (3502) is located at the extending direction of fire grate radial canal (35012), the third interconnecting piece (3508) it is located at the end of the fire grate radial canal (35012).
5. a kind of refuse pyrolysis gasification furnace rotary fire grate device according to claim 1, which is characterized in that the fire grate drives Dynamic system (37) include fire grate axis (3701), driving device (3702) and the first cooling device (3703), the fire grate axis (3701) one end connects the fire grate device (35), and the driving device (3702) drives fire grate axis (3701) rotation, institute Stating the first cooling device (3703) includes cooling cover (3704), and the cooling cover (3704) is sheathed on the fire grate axis (3701), cooling cover (3704) side wall is equipped with the first cooling water cavity (3705), in first cooling water cavity (3705) Equipped with the first cooling water pipe (3706), cooling cover (3704) bottom is respectively equipped with the first cooling water inlet (3707) and One cooling water outlet (3708), the first cooling water pipe (3706) bottom end are connected to first cooling water inlet (3707), First cooling water pipe (3706) top is located at the top of first cooling water cavity (3705), first cooling water pipe (3706) top is equipped with the first opening (3709), first cooling water outlet (3708) and first cooling water cavity (3705) Connection.
6. a kind of refuse pyrolysis gasification furnace rotary fire grate device according to claim 5, which is characterized in that the driving dress The outside that (3702) are set to the pyrolysis gasification furnace (3) is set, the driving device (3702) includes motor (3710) and transmission Part (3711), the motor (3710) are driven the fire grate axis (3701), the driving member (3711) by driving member (3711) For belt, chain or gear.
7. a kind of refuse pyrolysis gasification furnace rotary fire grate device according to claim 5, which is characterized in that further include second Cooling device (3712), the fire grate axis (3701) is internal to be equipped with the second cooling water cavity (3713), second cooling water cavity (3713) bottom end is equipped with the second opening, and second cooling device (3712) includes the second cooling water pipe (3715) and rotary joint (3716), second cooling water pipe (3715) extend into second cooling water cavity (3713) from the second opening;Described At the top of two cooling water pipes (3715) at the top of second cooling water cavity (3713), and it is equipped with third opening (3714);It is described Rotary joint (3716) is sheathed on second cooling water pipe (3715), and is tightly connected with second opening.
CN201810574083.3A 2018-06-06 2018-06-06 A kind of refuse pyrolysis gasification furnace rotary fire grate device Active CN108930964B (en)

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