CN208871629U

CN208871629U - An integrated system of waste gasification and biomass combustion

Info

Publication number: CN208871629U
Application number: CN201821511234.2U
Authority: CN
Inventors: 刘海力; 陈旺; 林道光; 毛永宁
Original assignee: Hunan University of Humanities Science and Technology
Current assignee: Hunan University of Humanities Science and Technology
Priority date: 2018-09-17
Filing date: 2018-09-17
Publication date: 2019-05-17
Anticipated expiration: 2028-09-17

Abstract

The utility model relates to the field of garbage disposal, in particular to a comprehensive system of garbage gasification and biomass combustion, comprising a gasifier and a circulating fluidized bed boiler. The gasifier is provided with an inner tank, and a garbage crusher is arranged above the inner tank. The gasifier is connected to the combustion chamber of the circulating fluidized bed boiler through the gas output pipe. The combustion chamber of the circulating fluidized bed boiler is provided with a breaking mechanism, and the circulating fluidized bed boiler is connected through the flue gas output pipe. The drying furnace is provided with a biomass primary feeding device and a biomass secondary feeding device, and the drying furnace is connected to the purification box through the second flue gas output pipe. The integrated system of waste gasification and biomass combustion transports the waste to the gasifier for gasification, and then the generated gas is transported to the circulating fluidized bed boiler to be burned together with the biomass, which greatly reduces the generation of waste gas and increases the The calorific value of the waste is improved, and the waste and biomass are comprehensively treated to improve the treatment effect and better protect the environment.

Description

A kind of refuse gasification and biomass combustion integrated system

Technical field

The utility model relates to field of garbage disposal, specially a kind of refuse gasification and biomass combustion integrated system.

Background technique

It is well known that burning disposal domestic waste is got well than landfill, compost treatment.But burning disposal urban life rubbish There is also problems for rubbish, as needed auxiliary fuel when refuse thermal value is low；Furnace temperature is lower, to the poisonous and harmful composition such as dioxin Destruction cannot be thoroughly decomposed, secondary pollution can be brought.Annual output such as crops, agricultural waste material, timber, the timber in China The biomass scale of construction as waste and animal wastes is huge, and the one kind of biomass waste as solid waste is that people are necessary The environmental contaminants dealt carefully with, if processing is mishandling, it will lead to serious environmental pollution.Biomass waste is to regional water Environment, atmosphere and soil environment etc. have potential threat.In consideration of it, it is proposed that a kind of refuse gasification and biomass combustion are comprehensive Collaboration system.

Utility model content

The purpose of this utility model is to provide a kind of refuse gasifications and biomass combustion integrated system, to solve above-mentioned back The problem of being proposed in scape technology.To achieve the above object, the utility model provides the following technical solutions: a kind of refuse gasification and life Substance combustion integrated system, including gasification furnace and circulating fluidized bed boiler have liner inside gasification furnace, are provided with above liner pair Rubbish carries out the smashing device of fragmentation, and gasification furnace connects the combustion chamber of circulating fluidized bed boiler, recycle stream by combustion gas efferent duct The combustion chamber of fluidized bed boiler, which is provided with, breaks up mechanism, and circulating fluidized bed boiler connects drying oven by flue gas exit pipe one, It is provided with the first feeding device of biomass and biomass secondary feeds device on drying oven, and biomass secondary feeds device goes out Material mouth connects the combustion chamber of circulating fluidized bed boiler, and drying oven connects purifying box by flue gas exit pipe two.

Preferably, liner is netted column casing structure, and liner is connect with air supply mechanism, between the side wall of liner and gasification furnace has Gap, combustion gas efferent duct one end are connected to the gap between liner and the side wall of gasification furnace, the inner wall of liner be fixed with it is multiple obliquely And interlaced deflector.

Preferably, air supply mechanism includes air pump, and air pump passes through piping connection endless tube, is connected with multiple air nozzles on endless tube, Air nozzle is located at the inside of liner.

Preferably, smashing device includes the particle chamber on gasification furnace top, the motor two for being fixed on gasification furnace top and interior The sieve of the inner sunken face shape of gallbladder upper port, and the injection direction of air nozzle is directed toward sieve, motor two is connected by deceleration device Particle knife group offers feeding-passage on the side wall of particle chamber, and the collar extension of feeding-passage connects rubbish feeding device.

Preferably, rubbish feeding device includes the barrel being made of direct tube section and conical cylinder section, and the opening of conical cylinder section with into Expect channel connection, barrel inside fixed-axis rotation connection have helical-blade screw rod one, and the helical-blade density on screw rod one by Direct tube section is gradually increased to conical cylinder section, and the one end of screw rod one far from feeding-passage connects motor one by deceleration device, and barrel leans on One end of nearly motor one is fixed with feed hopper.

Preferably, there are flue gas accumulation chamber, the upper end of flue gas accumulation chamber and flue gas above the combustion chamber of circulating fluidized bed boiler The inlet end of efferent duct one connects, and the combustion chamber of circulating fluidized bed boiler and the junction of flue gas accumulation chamber are fixed with upper filter, The bottom of combustion chamber of circulating fluidized bed boiler is fixed with lower filter, passes through gas channels below lower filter and connects air blast with tracheae Machine, the combustion chamber upper portion side wall and lower sides of circulating fluidized bed boiler offer biomass channel and blast tube respectively, and The outlet end of combustion gas efferent duct is connect with blast tube.

Preferably, breaing up mechanism includes being fixed on the motor three below lower filter and between upper filter and lower filter Shaft, shaft upper end is fixed with the brush board for cleaning upper filter, is located at below brush board in shaft and is fixed with blade, blade The lower section position height that corresponds to biomass channel have blank disk, blank disk is made of the inner ring and outer ring that concentric is socketed, interior Circle is fixedly attached in shaft, is fixedly connected between inner ring and outer ring by multiple metal spokes, also logical between inner ring and outer ring It crosses pin shaft and is hingedly connected with multiple spoilers, the lateral wall of outer ring circumferentially moves towards to be fixed with multiple cutters, and cutter and biology The discharge port in matter channel corresponds to tangent, is fixed with multiple hammer stems, and recycle stream from top to bottom positioned at the lower section of blank disk in shaft The height and position that hammer stem is corresponded on the side wall of the combustion chamber of fluidized bed boiler is fixed with multiple material vibrating mechanisms, the lower end of shaft and motor Three main shaft is fixedly connected.

Preferably, material vibrating mechanism includes the pendulum for being hingedly connected to the sidewall of combustion chamber of circulating fluidized bed boiler and being directed toward shaft Bar, the end that one end that swing rod is directed toward shaft is fixed with the sidewall of combustion chamber that can be directed toward circulating fluidized bed boiler with hammer stem contact The driving lever of interference, the bilateral type of swing rod are fixed with hammer block.

Preferably, the gas outlet of flue gas exit pipe one and the bottom of drying oven connect, and offer in drying oven upper portion side wall Biomass feed inlet, and biomass feed inlet is connect with the discharge port of the first feeding device of biomass, biomass feeds dress for the first time The structure set is identical as the structure of rubbish feeding device, and the lower sides of drying oven are fixed with the biology being connected to biomass channel Matter compressed pipe and biomass secondary feeds device, biomass secondary feeds device include that motor four and fixed-axis rotation are connected to life Screw rod two inside substance compressed pipe, compressed biomass pipe is identical as material cylinder structure, and the opening of compressed biomass pipe conical cylinder section It is connect with biomass channel, screw rod two is identical as one structure of screw rod, and two one end of screw rod passes through inside and the motor four of drying oven Main shaft be fixedly connected.

Preferably, the upper port of drying oven is connect with the air inlet of flue gas exit pipe two, the gas outlet of flue gas exit pipe two Hereinafter, the inside top surface of purifying box is fixed with multiple spray shower heads, the upper portion side wall of purifying box connects insertion purifying box internal liquid level It is connected to exhaust pipe.

Compared with prior art, the utility model has the beneficial effects that

1. in the utility model, rubbish is delivered to gasification furnace and is gasified, the fuel gas transmission then generated to recycle stream Fluidized bed boiler burns together with biomass, greatly reduces the generation of rubbish poison gas, and increases waste heating value, to rubbish and Biomass carries out comprehensive treatment, improves treatment effect, preferably protects environment；

2. in the utility model, the flue gas of high temperature heats the biomass in drying oven, biomass is on the one hand removed In moisture, improve combustion efficiency, on the other hand improve biomass and enter the temperature of combustion chamber, it is indoor to advantageously reduce burning Difference variation amplitude, improve thermal effect, and biomass can also by flue gas particulate matter and big impurity be filtered；

3. in the utility model, rubbish crushing is more advantageous to the abundant gasification of rubbish by the smashing device inside gasification furnace, Gasification result is improved, meanwhile, on the one hand air supply mechanism serves as gasifying agent effect, on the other hand to air is supplemented inside gasification furnace Tamper on sieve is blown afloat, the normal use of sieve is kept, additionally it is possible to the rubbish above sieve is subjected to stirring, improved broken Change efficiency；

4. in the utility model, breaing up mechanism and break up by biomass improving burning effect convenient for burning with combustion gas mixing Rate, and break up the hammer stem in mechanism stir material vibrating mechanism by the black dirt for being adhered to Inner Wall of Combustion Chamber vibration fall, keep the biography of heat Pass efficiency.

Detailed description of the invention

Fig. 1 is the general assembly cross section structure schematic diagram of the utility model；

Fig. 2 is the gasification furnace cross section structure schematic diagram of the utility model；

Fig. 3 is the circulating fluidized bed boiler cross section structure schematic diagram of the utility model；

Fig. 4 is the Section A-A structural schematic diagram in Fig. 3；

Fig. 5 is the blank dish structure schematic diagram of the utility model

Fig. 6 is the drying oven cross section structure schematic diagram of the utility model.

In figure: 1- gasification furnace；2- air supply mechanism；21- air pump one；22- endless tube；23- air nozzle；3- rubbish feeding device； 31- motor one；32- barrel；33- feed hopper；34- screw rod one；4- smashing device；41- motor two；42- particle chamber；43- particle Knife group；44- feeding-passage；5- combustion gas efferent duct；6- liner；61- sieve；62- deflector；7- circulating fluidized bed boiler；On 71- Filter；72- flue gas accumulation chamber；73- blast tube；74- biomass channel；Filter under 75-；76- gas channels；8- beater Structure；81- motor three；82- shaft；83- blade；84- brush board；85- hammer stem；86- material vibrating mechanism；861- swing rod；862- driving lever； 862- hammers block into shape；87- blank disk；The outer ring 871-；872- inner ring；873- metal spoke；874- spoiler；875- cutter；9- flue gas Efferent duct one；10- air blower；11- drying oven；111- biomass feed inlet；112- compressed biomass pipe；12- biomass is secondary Feeding device；121- motor four；122- screw rod two；The first feeding device of 13- biomass；14- flue gas exit pipe two；15- purification Case；151- exhaust pipe；16- spray shower head.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, ordinary skill staff person is not making creative work Under the premise of every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-6, the utility model provides a kind of technical solution: a kind of refuse gasification is comprehensive with biomass combustion to be System includes gasification furnace 1 and circulating fluidized bed boiler 7, there is liner 6 inside gasification furnace 1, and liner 6 is netted column casing structure, and liner 6 It is connect with air supply mechanism 2, air supply mechanism 2 includes air pump 21, and air pump 21 passes through piping connection endless tube 22, is connected on endless tube 22 more A air nozzle 23, air nozzle 23 are located at the inside of liner 6, and liner 6 and the side wall of gasification furnace 1 have gap, 5 one end of combustion gas efferent duct It is connected to the gap between liner 6 and the side wall of gasification furnace 1, the inner wall of liner 6, which is fixed with, multiple obliquely and interlaced leads Flowing plate 62, the smashing device 4 that fragmentation is carried out to rubbish is provided with above liner 6, and gasification furnace 1 is followed by the connection of combustion gas efferent duct 5 The combustion chamber of circulation fluidized bed boiler 7, the combustion chamber of circulating fluidized bed boiler 7, which is provided with, breaks up mechanism 8, recirculating fluidized bed pot Furnace 7 connects drying oven 11 by flue gas exit pipe 1, is provided with the first feeding device 13 of biomass and biomass on drying oven 11 Secondary feeds device 12, and the combustion chamber of the discharge port connection circulating fluidized bed boiler 7 of biomass secondary feeds device 12, it is dry Furnace 11 connects purifying box 15 by flue gas exit pipe 2 14.

In the present embodiment, rubbish is delivered to gasification furnace 1 and is gasified, the fuel gas transmission then generated to recirculating fluidized bed Boiler 7 burns together with biomass, greatly reduces the generation of rubbish poison gas, and increases waste heating value, to rubbish and life Substance carries out comprehensive treatment, improves treatment effect, preferably protects environment；In addition, the flue gas of high temperature is to the life in drying oven 11 Substance is heated, and the moisture in biomass is on the one hand removed, and improves combustion efficiency, is on the other hand improved biomass and is entered burning The temperature of room advantageously reduces the indoor difference variation amplitude of burning, improves thermal effect, and biomass can also will be in flue gas Particulate matter and big impurity are filtered.

Below in embodiment smashing device 4, rubbish feeding device 3, break up mechanism 8 and make specific structure explanation:

The particle chamber 42 of smashing device 4 including 1 top of gasification furnace, the motor 2 41 for being fixed on 1 top of gasification furnace and interior The sieve 61 of the sieve 61 of the inner sunken face shape of 6 upper port of gallbladder, inner sunken face shape has bigger area, is conducive to improve rubbish Fragmentation efficiency, and the injection direction of air nozzle 23 is directed toward sieve 61, motor 2 41 connects particle knife group 43 by deceleration device, broken Expect to offer feeding-passage 44 on the side wall of chamber 42, and the collar extension of feeding-passage 44 connects rubbish feeding device 3.

Rubbish feeding device 3 includes the barrel 32 being made of direct tube section and conical cylinder section, and the opening of conical cylinder section and charging are logical Road 44 connects, and the inside fixed-axis rotation connection of barrel 32 has the screw rod 1 of helical-blade, and the helical-blade on screw rod 1 is close Degree is gradually increased by direct tube section to conical cylinder section, and the one end of screw rod 1 far from feeding-passage 44 connects motor one by deceleration device 31, barrel 32 is fixed with feed hopper 33 close to one end of motor 1.

There is flue gas accumulation chamber 72 above the combustion chamber of circulating fluidized bed boiler 7, the upper end of flue gas accumulation chamber 72 and flue gas are defeated The inlet end of outlet pipe 1 connects, and the combustion chamber of circulating fluidized bed boiler 7 and the junction of flue gas accumulation chamber 72 are fixed with upper filter 71, the bottom of combustion chamber of circulating fluidized bed boiler 7 is fixed with lower filter 75, is connected below lower filter 75 by gas channels and tracheae Air blower 10 is connect, the combustion chamber upper portion side wall and lower sides of circulating fluidized bed boiler 7 offer 74 He of biomass channel respectively Blast tube 73, and the outlet end of combustion gas efferent duct 5 is connect with blast tube 73.

Break up mechanism 8 include be fixed on the motor 3 81 of 75 lower section of lower filter and be located at upper filter 71 and lower filter 75 it Between shaft 82,82 upper end of shaft is fixed with the brush board 84 for cleaning upper filter 71, the lower section of brush board 84 is located in shaft 82 It is fixed with blade 83, the position height that the lower section of blade 83 corresponds to biomass channel 74 has blank disk 87, and blank disk 87 is by justifying together The inner ring 872 of heart socket and outer ring 871 form, and inner ring 872 is fixedly attached in shaft 82, and between inner ring 872 and outer ring 871 It is fixedly connected by multiple metal spokes 873, multiple flow-disturbings is also hingedly connected with by pin shaft between inner ring 872 and outer ring 871 Plate 874, the lateral wall of the outer ring 871 circumferentially move towards to be fixed with multiple cutters 875, and cutter 875 and biomass channel 74 Discharge port correspond to tangent, be fixed with multiple hammer stems 85, and recycle stream from top to bottom positioned at the lower section of blank disk 87 in shaft 82 The height and position that hammer stem 85 is corresponded on the side wall of the combustion chamber of fluidized bed boiler 7 is fixed with multiple material vibrating mechanisms 86, under shaft 82 End is fixedly connected with the main shaft of motor 3 81.

Material vibrating mechanism 86 includes the swing rod for being hingedly connected to the sidewall of combustion chamber of circulating fluidized bed boiler 7 and being directed toward shaft 82 861, one end that swing rod 861 is directed toward shaft 82 is fixed with the sidewall of combustion chamber that circulating fluidized bed boiler 7 can be directed toward with hammer stem 85 End contact interference driving lever 862, the bilateral type of swing rod 861 be fixed with hammer block 863, motor 3 81 using positive and negative rotation electricity On the one hand machine, the Direct/Reverse rotation that when work recycles can so that shaft 82 and the Direct/Reverse of hammer stem 85 be driven to rotate Driving lever 862 is back and forth stirred, improves vibration material effect, the Direct/Reverse rotation of another aspect hammer stem 85 can twining to avoid biomass Around.

The gas outlet of flue gas exit pipe 1 is connect with the bottom of drying oven 11, offers life in 11 upper portion side wall of drying oven Material feed ports 111, and biomass feed inlet 111 is connect with the discharge port of the first feeding device 13 of biomass, biomass is first The structure of feeding device 13 is identical as the structure of rubbish feeding device 3, and the lower sides of drying oven 11 are fixed with logical with biomass The compressed biomass pipe 112 and biomass secondary feeds device 12 that road 74 is connected to, biomass secondary feeds device 12 include electricity Machine 4 121 and fixed-axis rotation are connected to the screw rod 2 122 inside compressed biomass pipe 112, compressed biomass pipe 112 and barrel 32 Structure is identical, and the opening of 112 conical cylinder section of compressed biomass pipe is connect with biomass channel 74, screw rod 2 122 and screw rod 1 Structure is identical, and 2 122 one end of screw rod is fixedly connected across the inside of drying oven 11 with the main shaft of motor 4 121, drying oven 11 Upper port connect with the air inlet of flue gas exit pipe 2 14,15 inside liquid of purifying box is inserted into the gas outlet of flue gas exit pipe 2 14 Hereinafter, the inside top surface of purifying box 15 is fixed with multiple spray shower heads 16, the upper portion side wall of purifying box 15 is connected with exhaust pipe in face 151。

In the utility model, when carrying out the integrated treatment of rubbish and biomass, this kind of refuse gasification and biomass combustion The integrated system course of work is as follows:

Rubbish enters inside barrel 32 from feed hopper 33, and motor 1 drives screw rod 34 to rotate, and the rotation of screw rod 34 is logical It crosses helical-blade to push to rubbish inside feeding-passage 44, and enters inside particle chamber 42；

Motor 2 41 drives 43 high-speed rotation of particle knife group, carries out fragmentation processing to rubbish, the fragmentation partial size of rubbish meets Sieve 61 carries out pyrolytic gasification by that can fall into out of sieve 61 through-hole after requiring inside liner 6, the rubbish after fragmentation After rubbish particle falls into 6 inside of liner, the bottom of liner 6 is gradually dropped to via deflector 62, deflector 62 increases rubbish The flowing stroke of grain, to increase gasification result, and granulated garbage is collided with the generation of deflector 62 into one in dropping process Walk fragmentation；

Outside air is delivered to inside endless tube 22 by the work of air pump 21, and branches to each air nozzle 23 by endless tube 22, by On the one hand air nozzle 23 serves as gasifying agent effect, on the other hand by the tamper on sieve 61 to tonifying Qi is carried out inside gasification furnace 1 It blows afloat, keeps the normal use of sieve 61, additionally it is possible to the rubbish of 61 top of sieve is subjected to stirring, improve fragmentation efficiency；

Since 1 internal temperature of gasification furnace is higher, refuse gasification can be pyrolyzed rapidly and generate fuel gas, then combustible gas Body is via combustion gas efferent duct 5 from the output of blast tube 73 in circulating fluidized bed boiler 7 to combustion chamber；

While exporting combustion gas to combustion chamber after refuse gasification, biomass feeds dress by the biomass on drying oven 11 for the first time 13, biomass secondary feeds device 12 is set out of biomass channel 74 output to combustion chamber, and is ignited burning, biomass and combustion While gas burns, motor 3 81 drives shaft 82 to rotate, and scraper plate 84, blade 83, blank disk are driven while shaft 82 rotates 87 and hammer stem 85 rotate synchronously；

The biomass chopping for the compacting that cutter 875 exports biomass channel 74 while blank disk 87 rotates, avoids into Block, improves fragmentation combustion efficiency, and hammer stem 85 is broken up the biomass of whereabouts while rotation, sufficiently connect with combustion gas, air Touching, improves efficiency of combustion, and air pressurized is delivered to bottom of combustion chamber and will be biological by lower upward blow afloat of filter 75 by air blower 10 Matter blows afloat to form flow regime, on the one hand lower filter 75 stops biomass and ashes to be in combustion chamber, on the other hand can It allows air-flow to pass through, to supplemental oxygen in combustion chamber, keeps burning, the air-flow of rising drives biomass rolling, the rotation of blade 83 Downward air-flow is formed, forms convection circulation with upward air-flow, and air-flow is with biomass fuel, not sufficiently combusted portion Point, ashes etc. circulate, carry out a step under the action of spoiler 874 on blank disk 87 and form turbulent flow, to sufficiently make It obtains biomass to contact with oxygen, burns more abundant, increase operation rate, and blast tube 73 is located under biomass channel 74 Side, combustion gas are walked upwards, and biomass is walked downwards, is come into full contact with convenient for combustion gas and biomass；

Its end while breaing up to biomass of hammer stem 85 contacts with the driving lever 862 on swing rod 861 and stirs pendulum Bar 861 is swung, so that hammer block 863 will hit against sidewall of combustion chamber, will be fallen the black dirt vibration for being adhered to Inner Wall of Combustion Chamber, is protected Hold the transmission efficiency of heat；

The flue gas that biomass after burning generates is assembled to flue gas accumulation chamber 72, and wherein upper filter 71 is used to biomass fuel The ashes of burning and imperfect combustion biomass stop on the one hand to keep biomass full combustion in the combustion chamber, on the other hand It avoids flue gas from taking away a large amount of ashes, increases pollution, it is to be adhered to upper filter that shaft 82, which drives scraper plate 84 to rotate purpose, 71 ashes etc. are clear, and upper filter 71 is avoided to block；

High-temperature flue gas enters the bottom of drying oven 11 by flue gas exit pipe 1, and from the bottom of drying oven 11 to upstream It is dynamic, and the biomass conveyed with the first feeding device 13 of biomass contacts, and removes moisture, and heat to biomass, simultaneously The drive rotation of screw rod 2 122 of motor 4 121, which pushes to the biomass after dry heat in compressed biomass pipe 112, to be compressed Afterwards, it exports from biomass channel 74 to combustion chamber, on the one hand the effect of screw rod 2 122 and compressed biomass pipe 112 is to burning On the other hand biomass inside biomass channel 74 is carried out compressing close increase air-tightness, be kept away by indoor conveying fuel Exempt from flue gas from biomass channel 74, the intensity of a fire is in addition avoided to spread to drying oven 11 from biomass channel 74, and compresses closely raw Substance is difficult to burn and inside is minimum with air contact surfaces, and the compression of 2 122 pairs of biomass of screw rod can also increase biomass It is interior can, help to improve thermal effect；

While high-temperature flue gas is to biomass heat drying in drying oven 11 complicated biomass also to flue gas into The preliminary filtering of row, is equivalent to and carries out primary purification to biomass, and then flue gas is exported from flue gas exit pipe 2 14 to purifying box It inside 15, and is mixed with the liquid inside purifying box 15, removes impurity, the spray shower head 16 of 15 inside top surface of purifying box exists Water mist is sprayed to the water surface under the action of water pump, preferably to purify to flue gas, purified gas is from 151 row of exhaust pipe Out, environment is protected.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical work personnel person of industry is it should be appreciated that the present utility model is not limited to the above embodiments, above embodiments and description Described in be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit of the present invention Under the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within claimed In the scope of the utility model.The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated system of waste gasification and biomass combustion, comprising a gasifier (1) and a circulating fluidized bed boiler (7), characterized in that: the gasifier (1) has an inner bladder (6) inside , a crushing device (4) for crushing garbage is arranged above the inner tank (6), and the gasifier (1) is connected to the combustion of the circulating fluidized bed boiler (7) through a gas output pipe (5). The inside of the combustion chamber of the circulating fluidized bed boiler (7) is provided with a dispersing mechanism (8), and the circulating fluidized bed boiler (7) is connected to the drying furnace (11) through a flue gas output pipe one (9). , the drying furnace (11) is provided with a biomass primary feeding device (13) and a biomass secondary feeding device (12), and the discharge port of the biomass secondary feeding device (12) is connected to a circulating flow The combustion chamber of the chemical bed boiler (7), the drying furnace (11) is connected to the purification box (15) through the second flue gas output pipe (14).

2. A comprehensive system of waste gasification and biomass combustion according to claim 1, characterized in that: the inner liner (6) is of a net-shaped cylindrical structure, and the inner liner (6) and the gas supplementing mechanism ( 2) Connection, there is a gap between the inner bladder (6) and the side wall of the gasifier (1), and one end of the gas output pipe (5) is connected between the inner bladder (6) and the side wall of the gasifier (1). The inner wall of the inner tank (6) is fixed with a plurality of guide plates (62) which are inclined downward and interlaced with each other.

3. The integrated system of waste gasification and biomass combustion according to claim 2, characterized in that: the air supply mechanism (2) comprises an air pump (21), and the air pump (21) is connected to a ring through a pipeline A pipe (22), a plurality of air nozzles (23) are connected to the annular pipe (22), and the air nozzles (23) are located inside the inner bladder (6).

4 . The integrated system of waste gasification and biomass combustion according to claim 3 , wherein the crushing device ( 4 ) comprises a crushing chamber ( 42 ) in the upper part of the gasifier ( 1 ), a fixed The second motor (41) on the upper part of the gasifier (1) and the concave curved screen (61) at the upper port of the inner tank (6), and the jetting direction of the air nozzle (23) points to the screen (61), The second motor (41) is connected to the crushing knife group (43) through a deceleration device, the side wall of the crushing cavity (42) is provided with a feeding channel (44), and the outer opening of the feeding channel (44) Connect the waste feeder (3).

5 . The integrated system of waste gasification and biomass combustion according to claim 4 , wherein the waste feeding device ( 3 ) comprises a barrel ( 32 ) composed of a straight cylinder section and a conical cylinder section, 6 . And the opening of the cone section is connected with the feeding channel (44), the internal fixed axis of the barrel (32) is rotatably connected to the screw one (34) with helical leaves, and the density of the helical leaves on the screw one (34) Gradually increase from the straight cylinder section to the conical cylinder section, the end of the screw one (34) away from the feeding channel (44) is connected to the motor one (31) through a deceleration device, and the barrel (32) is close to the motor one (31) One end of the feed hopper (33) is fixed.

6. The integrated system of waste gasification and biomass combustion according to claim 5, characterized in that: there is a flue gas gathering cavity (72) above the combustion chamber of the circulating fluidized bed boiler (7), and the The upper end of the flue gas gathering cavity (72) is connected with the intake end of the first flue gas output pipe (9), and the connection between the combustion chamber of the circulating fluidized bed boiler (7) and the flue gas gathering cavity (72) is fixed with a an upper partition screen (71), a lower partition screen (75) is fixed at the bottom of the combustion chamber of the circulating fluidized bed boiler (7), and the lower part of the lower partition screen (75) is connected to the blower (10) through air passages and air pipes , the upper side wall and the lower side wall of the combustion chamber of the circulating fluidized bed boiler (7) are respectively provided with a biomass channel (74) and a gas channel (73), and the gas outlet end of the gas output pipe (5) is connected with the gas Channel (73) connection.

7. The integrated system of waste gasification and biomass burning according to claim 6, characterized in that: the dispersing mechanism (8) comprises a third motor (81) fixed under the lower partition net (75) and a motor three (81) located at A rotating shaft (82) between the upper separating net (71) and the lower separating net (75), the upper end of the rotating shaft (82) is fixed with a brush plate (84) for cleaning the upper separating net (71), the rotating shaft (82) ), a blade (83) is fixed below the brush plate (84), and a cutting plate (87) is arranged below the blade (83) corresponding to the height of the biomass channel (74). The cutting plate (87) ) consists of an inner ring (872) and an outer ring (871) that are concentrically sleeved, the inner ring (872) is fixedly sleeved on the shaft (82), and the inner ring (872) and the outer ring (871) are They are fixedly connected by a plurality of metal spokes (873), and a plurality of spoilers (874) are hingedly connected between the inner ring (872) and the outer ring (871) through pins. The outer ring (871) A plurality of cutting knives (875) are fixed along the circumferential direction of the outer side wall of the shaft, and the cutting knives (875) are correspondingly tangent to the discharge port of the biomass channel (74). A plurality of hammer rods (85) are fixed from top to bottom below ), and a plurality of vibrating material mechanisms ( 86), the lower end of the rotating shaft (82) is fixedly connected with the main shaft of the third motor (81).

8 . The integrated system of waste gasification and biomass combustion according to claim 7 , wherein the vibrating material mechanism ( 86 ) comprises a combustion chamber side wall hingedly connected to the circulating fluidized bed boiler ( 7 ). 9 . And point to the swing rod (861) of the rotating shaft (82), the end of the swing rod (861) pointing to the rotating shaft (82) is fixed with the hammer rod (85) pointing to the combustion chamber side wall of the circulating fluidized bed boiler (7) The end of the swing rod (861) contacts the interfering lever (862), and a hammer block (863) is symmetrically fixed on both sides of the pendulum rod (861).

9. The integrated system of waste gasification and biomass burning according to claim 8, characterized in that: the gas outlet of the first flue gas output pipe (9) is connected to the bottom of the drying furnace (11), and the A biomass feeding port (111) is opened on the upper side wall of the drying furnace (11), and the biomass feeding port (111) is connected with the discharging port of the biomass primary feeding device (13), and the biomass feeding port (111) is initially The structure of the feeding device (13) is the same as that of the waste feeding device (3). The lower side wall of the drying furnace (11) is fixed with a biomass compression pipe (112) communicating with the biomass channel (74) and A biomass secondary feeding device (12), the biomass secondary feeding device (12) comprises a fourth motor (121) and a second screw (122) rotatably connected to the inside of the biomass compression pipe (112) with a fixed axis, The biomass compression tube (112) has the same structure as the barrel (32), and the opening of the cone section of the biomass compression tube (112) is connected to the biomass channel (74), and the second screw (122) is connected to the first screw. (34) The structure is the same, and one end of the second screw (122) passes through the interior of the drying furnace (11) and is fixedly connected to the main shaft of the fourth motor (121).

10. The integrated system of waste gasification and biomass combustion according to claim 9, characterized in that: the upper port of the drying furnace (11) is connected to the air inlet of the second flue gas output pipe (14), The gas outlet of the second flue gas output pipe (14) is inserted below the liquid level inside the purification box (15), and a plurality of spray showers (16) are fixed on the inner top surface of the purification box (15). An exhaust pipe (151) is connected to the upper side wall of the box (15).