CN204786429U - Living beings rubbish combustion system - Google Patents
Living beings rubbish combustion system Download PDFInfo
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- CN204786429U CN204786429U CN201520518314.0U CN201520518314U CN204786429U CN 204786429 U CN204786429 U CN 204786429U CN 201520518314 U CN201520518314 U CN 201520518314U CN 204786429 U CN204786429 U CN 204786429U
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Abstract
The utility model provides a living beings rubbish combustion system, include: a conveyor, the 2nd conveyor, circulating fluidized bed waste incinerator, cyclone furnace, wherein, a conveyor and the 2nd conveyor are linked together with circulating fluidized bed's feed inlet respectively, circulating fluidized bed waste incinerator is used for carrying out the burning first time to living beings rubbish, and it is provided with end sediment discharge port and exhanst gas outlet, and end sediment discharge port is used for discharging the end sediment behind fluidized bed combustion, and the exhanst gas outlet is linked together with the cyclone furnace for with the leading -in cyclone furnace burning of uncombusted living beings and flying dust in the fluidized bed, the cyclone furnace is used for carrying out postcombustion to the material that gets into wherein, and messenger's living beings and flying dust melting are discharged from its bottom after becoming glass attitude material to subsequent processing carries out after deriving the flue gas that generates. The utility model discloses easy coking, deposition are burned to the high living beings that arouse of alkali metal content in can effectively solving living beings, burn the lower scheduling problem of temperature.
Description
Technical field
The utility model relates to environmental protection technical field, particularly relates to a kind of biomass garbage combustion system.
Background technology
The inorganic elements that straw biological raw material comprises mainly contains potassium, sodium, chlorine, sulphur, calcium, silicon, phosphorus etc., and they are that biomass thermal chemical conversion utilizes in process the essential element causing slagging scorification, dust stratification.
According to the difference of the specific reactor type of the difference of the kind of inorganic elements contained in living beings, quantity, thermochemical study technique and employing, the problem that alkali metal causes has the various form of expression, such as:
1, under high-temp combustion environment, alkali metal and Inorganic thereof may become slag at freeze profile or enter gas phase, be deposited on heating surface, affect the thermal efficiency of boiler with the form of steam and fly ash granule, exchange hot side simultaneously and cause heavy corrosion;
2, when adopting fluid bed as burning or gasification reactor, the alkali metal in biomass material may react with bed material the cocrystalization compound that forms low melting point and cause particle agglomeration, and obstruction fluidisation even causes fluidisation unsuccessfully.In prior art, in living beings burning process (yellow stalk that especially alkali metal containing is higher), because the incineration temperature of fluidized bed incinerator cannot reach more than 800 degree, the high-temperature coking problem of the yellow stalk gasification of biomass that tenor is higher, there is no basic solution, although some measure can reduce its harm, the temperature that this problem makes living beings burn all the time is restricted, and cannot obtain the high-quality steam of high parameter.
Above-mentioned situation all can cause that equipment maintenance cost rises, availability reduces and the cycle of operation shortens, thus greatly weakens whole biomass conversion and utilize the applicability of system and the competitiveness in energy market.
In addition, if living beings adopt cyclone furnace to process, due to the restriction of feeding manner, just can enter cyclone furnace after causing living beings must be broken for less particle to burn, and, igniter must be increased after living beings enter cyclone furnace carry out igniting and could burn, which increases the intractability of living beings.
Utility model content
Given this, the utility model is intended to propose a kind of biomass garbage combustion system, high effectively to solve alkali metal content in living beings, and the living beings caused are burned and are easy to coking, dust stratification, the problems such as incineration temperature is lower.
The utility model biomass garbage combustion system, comprises the first conveying device, the second conveying device, circulating fluid bed garbage furnace and cyclone furnace; Wherein, described first conveying device is connected with the charging aperture of described circulating fluid bed garbage furnace respectively with described second conveying device, and described first conveying device is for carrying biomass garbage, and described second conveying device is for carrying bed material; Described used for circulating fluid bed garbage furnace in biomass garbage being carried out to first time burning, it is provided with end slag outlet and exhanst gas outlet, slag outlet of the described end is used for the end slag after fluidized bed combustion to discharge, described exhanst gas outlet is connected with described cyclone furnace, for living beings unburnt in described fluid bed and flying dust being imported the burning of described cyclone furnace; Described cyclone furnace is used for carrying out second-time burning to the material entered wherein, from discharging bottom it after making living beings and fusing fly ash become glass state material, and carries out subsequent treatment after being derived by the flue gas of generation.
Further, in above-mentioned biomass garbage combustion system, also cooling device is comprised; Described cooling device is connected with described cyclone furnace, for cooling the flue gas entered from described cyclone furnace.
Further, in above-mentioned biomass garbage combustion system, described cooling device comprises one-level cooling unit and secondary cooling unit; Described one-level cooling unit is used for cooling flue gas out from described cyclone furnace, and the temperature making flue gas discharge described one-level cooling unit is 500-700 DEG C; Described secondary cooling unit is fast cooling device, is reduced to less than 180 DEG C for making the flue gas entered wherein in 1 ~ 2 second.
Further, in above-mentioned biomass garbage combustion system, described secondary cooling unit is sprinkling equipment; NaOH or Ca (OH) 2 medicament is provided with in the cooling water that spray adopts.
Further, in above-mentioned biomass garbage combustion system, described secondary cooling unit is also connected with sack cleaner by flue; Described biomass garbage combustion system also comprises active carbon spray appliance; Described active carbon spray appliance is used for spraying into active carbon to described flue.
Further, in above-mentioned biomass garbage combustion system, described first conveying device and described second conveying device are all batchers.
Compared with prior art, the beneficial effects of the utility model are:
By first carrying out low temperature gasification to biomass garbage, then the mode of high temperature incineration is carried out, the chemical conversion of effective solution biomass thermal utilize cause because alkali metal content is high in process cause slagging scorification, dust stratification problem, be particularly useful for processing the rubbish materials such as the not tractable yellow stalk stalk of existing biomass incinerator.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and is not thought restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the structured flowchart of the utility model biomass garbage combustion system first embodiment;
Fig. 2 is the structured flowchart of the utility model biomass garbage combustion system second embodiment.
Reference numeral is as follows:
1 gives wind apparatus
2 air distribution plates
3 circulating fluid bed garbage furnaces
4 cyclone furnaces
5 cold slag devices
6 cooling devices
7 smoke evacuation systems
A water inlet
B delivery port
C delivery port
D delivery port
E water inlet
F delivery port
Detailed description of the invention
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, but should be appreciated that and can realize the disclosure in a variety of manners, and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
With reference to the structured flowchart that Fig. 1, Fig. 1 are the utility model biomass garbage combustion system first embodiment, comprising: the first conveying device, the second conveying device, circulating fluid bed garbage furnace and cyclone furnace; Wherein, the first conveying device is connected with the charging aperture of recirculating fluidized bed respectively with the second conveying device, and the first conveying device is for carrying biomass garbage, and the second conveying device is for carrying bed material; Used for circulating fluid bed garbage furnace in biomass garbage being carried out to first time burning, it is provided with end slag outlet and exhanst gas outlet, end slag outlet is used for the end slag after fluidized bed combustion to discharge, exhanst gas outlet is connected with cyclone furnace, for living beings unburnt in fluid bed and flying dust are imported cyclone furnace burning; Cyclone furnace is used for carrying out second-time burning to the material entered wherein, from discharging bottom it after making living beings and fusing fly ash become glass state material, and carries out subsequent treatment after being derived by the flue gas of generation.
In the specific implementation, the first conveying device and the second conveying device can adopt batcher.
During concrete enforcement, a batcher is for carrying living beings, and another batcher is for carrying bed material, quartz sand and the end slag after burning is adopted to make the bed material of bed, Combustion System in fluid bed is in anoxycausis state, and the design temperature in burner hearth is 400-650 DEG C, and end slag is got rid of from fluidized-bed bottom.The cyclone furnace that unburnt living beings, small particle and synthesis gas enter as dual firing chamber in fluid bed carries out high temperature incineration, the design temperature of cyclone furnace controls at about 1000-1400 DEG C, and the living beings and the fusing fly ash that make to enter cyclone furnace become glass state material to discharge from bottom.
The present embodiment proposes the incinerator of the low temperature fluidized bed gasification of a kind of novel living beings and the combination of cyclone furnace high temperature, is applied to by cyclone furnace among living beings burning, comprises:
The first, fluid bed is utilized to carry out the gasification of living beings low temperature pyrolyzer, gasification temperature is lower than 650 degree, in this temperature range, living beings can not coking, part biological matter obtains cracking, a small amount of material generating gasification reaction, generating portion fuel gas, but most of solid biomass is imperfect combustion, is just cracked into charcoal, wood tar, pyrolkigneous liquid and short grained ash and grades component;
The second, cyclone furnace is set, high temperature incineration is carried out to the biomass components after low temperature pyrolyzer gasification, effectively realize the high-temp combustion of living beings, and the running status of the structure of cyclone furnace and material high-speed thereof effectively can avoid the generation of coking and dust stratification problem, the Thorough combustion of living beings can be realized.
Three, the slag tap mode of cyclone furnace can solve alkali metal in flue gas cooling procedure, causes the dust stratification of the solid particles such as flying dust at places such as heat-transfer surfaces and etching problem.
Four, the gasification be separated and combustion system, the employing low temperature pyrolyzer gasification that fluid bed can be made to suit measures to local conditions or the different modes such as oxygen gasified, mode more targetedly can be effectively adopted to carry out gasification of biomass, increase the scope of application of device, even make CIU can be applied to the process of the danger wastes of Biohazard Waste and part high heating value.
More preferably, biomass garbage combustion system also comprises cooling device; Cooling device is connected with cyclone furnace; For cooling the flue gas entered from cyclone furnace.
Specifically, in the present embodiment, cooling device comprises one-level cooling unit and secondary cooling unit; One-level cooling unit is used for carrying out Slow cooling to flue gas out from cyclone furnace, and the temperature making flue gas discharge one-level cooling unit is 500-700 DEG C; Secondary cooling unit is fast cooling device, is reduced to less than 180 DEG C for making the flue gas entered wherein in 1 ~ 2 second.
More particularly, first one-level cooling (slow cooling) is carried out through one-level cooling unit from cyclone furnace high-temperature flue gas out, one-level cooling adopts the form of heat exchanger, the temperature that flue gas discharges one-level cooler is 500-700 DEG C, cooling water is lifted to more than 80 DEG C from normal temperature, then enters water-cooling tower and is cooled to normal temperature cycling and reutilization;
Then, two grade cooling towers that flue gas after pre-dedusting enters as secondary cooling unit carry out chilling, flue gas is made to be reduced to 180 DEG C in 1 ~ 2 second, because 180 ~ 600 DEG C is the generation interval of dioxin, the probability that can make not burn the dioxin of dioxin predecessor synthesis completely like this drops to minimum, secondary cooling is spraying cooling, and shower water is discharged with flue gas all as a vapor, containing NaOH or Ca (OH) in cooling water
2medicament, not only can make flue gas chilling, can also remove the HCL in flue gas, oxysulfide and part flue dust etc.
In addition, in the present embodiment, secondary cooling unit is also connected with sack cleaner by flue; Biomass garbage combustion system also comprises active carbon spray appliance; Active carbon spray appliance is used for spraying into active carbon to flue.Spray into activated carbon to flue, remove the dust in the flue gas of discharging from secondary cooling unit and heavy metal; Flue gas enters sack cleaner again and removes remaining flue dust, enters air by chimney.Further, iterative cycles in the cinder reinjection collected by cloth bag to fluid bed or dual firing chamber, finally all discharges with glass state material.
With reference to the structural representation that Fig. 2, Fig. 2 are the utility model biomass garbage combustion system second embodiments.This example show the structure of biomass garbage combustion system.
Wherein, this system comprises circulating fluid bed garbage furnace 3, cyclone furnace 4, cooling device 6 and smoke evacuation system 7.
The furnace bottom of circulating fluid bed garbage furnace is provided with to wind apparatus 1 and air distribution plate 2, by helix transporting device, biomass garbage and bed material is delivered into burner hearth and burns, and this process is called " first time burning ".In this process, garbage utilization circulating fluid bed garbage furnace 3 carries out the gasification of living beings low temperature pyrolyzer, gasification temperature is lower than 650 degree, in this temperature range, living beings can not coking, and part biological matter obtains cracking, a small amount of material generating gasification reaction, generating portion fuel gas, but most of solid biomass is imperfect combustion, is just cracked into charcoal, wood tar, pyrolkigneous liquid and short grained ash and grades component.
During enforcement, the bottom of circulating fluid bed garbage furnace 3 is provided with end slag outlet (not shown) and exhanst gas outlet, and end slag outlet is used for the end slag after fluidized bed combustion to discharge; Exhanst gas outlet is connected with cyclone furnace 4, for living beings unburnt in circulating fluid bed garbage furnace 3 and flying dust are imported cyclone furnace burning.
In fluid bed, unburnt living beings, small particle and synthesis gas enter cyclone furnace 4 and carry out high temperature incineration, cyclone furnace 4 is as second-time burning, its design temperature controls at about 1000-1400 DEG C, make to enter living beings wherein and fusing fly ash becomes glass state material to discharge from bottom, before the material of the glassy state of melting is discharged from bottom, also to cool through cold slag device 5.
The present embodiment arranges cyclone furnace 4, high temperature incineration is carried out to the biomass components after low temperature pyrolyzer gasification, effectively realize the high-temp combustion of living beings, and the running status of the structure of cyclone furnace 4 and material high-speed thereof effectively can avoid the generation of coking and dust stratification problem, the Thorough combustion of living beings can be realized.Further, the slag tap mode of cyclone furnace 4 can solve alkali metal in flue gas cooling procedure, causes the dust stratification of the solid particles such as flying dust at places such as heat-transfer surfaces and etching problem.
Can find out, the gasification that the present embodiment is separated and combustion system, the employing low temperature pyrolyzer gasification that fluid bed is suited measures to local conditions or the different modes such as oxygen gasified, mode more targetedly can be effectively adopted to carry out gasification of biomass, increase the scope of application of device, even make CIU can be applied to the process of the danger wastes of Biohazard Waste and part high heating value.
Biomass garbage combustion system also comprises cooling device 6; Cooling device 6 is connected with cyclone furnace 4; For cooling the flue gas entered from cyclone furnace 4.In the present embodiment, cooling system is made up of heat-exchange system, and comprise the water-cooling channel that water inlet pipe and outlet pipe are formed, such as, in fig. 2, water inlet a, delivery port b, delivery port c, delivery port d, water inlet e, delivery port f, by above-mentioned layout, realize water-cooled.
Concrete cooling principle and process can with reference to the introductions of above-described embodiment.
Being connected with above-mentioned cooling device, is smoke evacuation system 7.This smoke evacuation system 7 can realize following function: be connected with sack cleaner by flue; Biomass garbage combustion system also comprises active carbon spray appliance; Active carbon spray appliance is used for spraying into active carbon to flue.Spray into activated carbon to flue, remove the dust in the flue gas of discharging from secondary cooling unit and heavy metal; Next, flue gas enters sack cleaner again and removes remaining flue dust, enters air by chimney.Further, iterative cycles in the cinder reinjection collected by cloth bag to fluid bed or dual firing chamber, finally all discharges with glass state material.
Compared with prior art, the beneficial effect of the present embodiment is: by first carrying out low temperature gasification to biomass garbage, then the mode of high temperature incineration is carried out, the chemical conversion of effective solution biomass thermal utilize cause because alkali metal content is high in process cause slagging scorification, dust stratification problem, be particularly useful for processing the rubbish materials such as the not tractable yellow stalk stalk of existing biomass incinerator.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (6)
1. a biomass garbage combustion system, is characterized in that, comprising:
First conveying device, the second conveying device, circulating fluid bed garbage furnace and cyclone furnace;
Wherein, described first conveying device is connected with the charging aperture of described circulating fluid bed garbage furnace respectively with described second conveying device, and described first conveying device is for carrying biomass garbage, and described second conveying device is for carrying bed material;
Described used for circulating fluid bed garbage furnace in biomass garbage being carried out to first time burning, it is provided with end slag outlet and exhanst gas outlet, slag outlet of the described end is used for the end slag after fluidized bed combustion to discharge, described exhanst gas outlet is connected with described cyclone furnace, for living beings unburnt in described fluid bed and flying dust being imported the burning of described cyclone furnace;
Described cyclone furnace is used for carrying out second-time burning to the material entered wherein, from discharging bottom it after making living beings and fusing fly ash become glass state material, and carries out subsequent treatment after being derived by the flue gas of generation.
2. biomass garbage combustion system according to claim 1, is characterized in that,
Also comprise cooling device;
Described cooling device is connected with described cyclone furnace, for cooling the flue gas entered from described cyclone furnace.
3. biomass garbage combustion system according to claim 2, is characterized in that,
Described cooling device comprises one-level cooling unit and secondary cooling unit;
Described one-level cooling unit is used for cooling flue gas out from described cyclone furnace, and the temperature making flue gas discharge described one-level cooling unit is 500-700 DEG C;
Described secondary cooling unit is fast cooling device, is reduced to less than 180 DEG C for making the flue gas entered wherein in 1 ~ 2 second.
4. biomass garbage combustion system according to claim 3, is characterized in that,
Described secondary cooling unit is sprinkling equipment;
NaOH or Ca (OH) is provided with in the cooling water that described sprinkling equipment adopts
2medicament.
5. biomass garbage combustion system according to claim 4, is characterized in that,
Described secondary cooling unit is also connected with sack cleaner by flue;
Described biomass garbage combustion system also comprises active carbon spray appliance;
Described active carbon spray appliance is used for spraying into active carbon in the flue be communicated with between described secondary cooling unit and described sack cleaner.
6. biomass garbage combustion system according to claim 5, is characterized in that,
Described first conveying device and described second conveying device are all batchers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518314.0U CN204786429U (en) | 2015-07-16 | 2015-07-16 | Living beings rubbish combustion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518314.0U CN204786429U (en) | 2015-07-16 | 2015-07-16 | Living beings rubbish combustion system |
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| CN204786429U true CN204786429U (en) | 2015-11-18 |
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| CN201520518314.0U Expired - Fee Related CN204786429U (en) | 2015-07-16 | 2015-07-16 | Living beings rubbish combustion system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949131A (en) * | 2015-07-16 | 2015-09-30 | 北京中科通用能源环保有限责任公司 | Biomass garbage combustion system and method |
| CN111360039A (en) * | 2020-04-10 | 2020-07-03 | 叶秋实 | Garbage treatment device and method |
-
2015
- 2015-07-16 CN CN201520518314.0U patent/CN204786429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949131A (en) * | 2015-07-16 | 2015-09-30 | 北京中科通用能源环保有限责任公司 | Biomass garbage combustion system and method |
| CN111360039A (en) * | 2020-04-10 | 2020-07-03 | 叶秋实 | Garbage treatment device and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20190716 |