CN208186363U - A kind of system for pyrolyzing and burning of smoke backflow formula - Google Patents
A kind of system for pyrolyzing and burning of smoke backflow formula Download PDFInfo
- Publication number
- CN208186363U CN208186363U CN201820010849.0U CN201820010849U CN208186363U CN 208186363 U CN208186363 U CN 208186363U CN 201820010849 U CN201820010849 U CN 201820010849U CN 208186363 U CN208186363 U CN 208186363U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- smoke backflow
- smoke
- pipeline
- burning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model discloses a kind of system for pyrolyzing and burning of smoke backflow formula, including sequentially connected pyrolytic incineration (pyrolytic gasification) furnace, the first flue, dual firing chamber, gas fume conveying system and smoke backflow system；The smoke backflow system includes that flue gas recirculation extracts blower and concatenated smoke backflow pipeline, flue gas recirculation extracts blower and concatenated smoke backflow pipeline one end is connected to the parallel connected end of the first flue i.e. inlet end of dual firing chamber, and the other end accesses the inlet end of pyrolysis gasification furnace.
Description
Technical field
The utility model relates to one kind in refuse pyrolysis incineration system, the control method of backflow flue gas to belong to rubbish
Processing technology field.
Background technique
System for pyrolyzing and burning is generally divided into pyrogenation incinerator, dual firing chamber, desuperheat tower and flue gas purification system.It is burnt via pyrolysis
The flue gas calorific value height that furnace comes out is burnt, the main component of backflow flue gas is moisture, CO and H2, and other a small amount of gas component (packets
Include CO2、CH4、N2With other low molecular hydrocarbon compounds), calorific value is up to 1800~2800kcal/m3.Domestic waste at
Divide complexity, and its calorific value is generally lower, fluctuation is larger.In order to be provided in reactor needed for enough pyrolysis and burning
Heat, it is sometimes desirable to add auxiliary fuel appropriate.
The incinerator and incinerating method that CN201510120791 is proposed, wherein incinerator include, it is one combustion chamber of bedroom, vertical
Two combustion chambers；The diameter of one combustion chamber of bedroom is less than the diameter of vertical two combustion chamber；One combustion chamber one end of bedroom and vertical two combustion
Room lower end is burnt to be connected；One Inner Wall of Combustion Chamber outermost horizontal line of bedroom and dual firing chamber's inner wall circumference are tangent.
A kind of incinerator apptss of CN106989401A, comprising: incinerator unit (10), the incinerator unit (10) include
Rotary kiln (11) and the dual firing chamber (12) being connected to the rotary kiln (11), the interior gas flow being passed through of the rotary kiln (11) are lower than
Preset value, the interior gas flow that is passed through of the dual firing chamber (12) is higher than the preset value；Fume treatment unit (20), the fume treatment
Unit (20) is connected to handle the flue gas in the incinerator unit (10) with the incinerator unit (10).
A kind of spiral-flow type incinerator that CN201710300708 is proposed, it is by shell, insulating layer (4), flame retardant coating, main burning
Room (1), secondary combustion chamber (13), room temperature air distribution device, high temperature air distribution device, heat collector are constituted；Furnace in two is set in main chamber
Wall (7) sets fire grate (9) between two inner furnace walls, sets the slanting jet hole of a row (6) on two inner furnace walls respectively；In above-mentioned jet hole
Outside by being passed through the injection air duct (5) for high temperature air distribution outside furnace；Slanting guiding is set respectively in main chamber (1) top two sides
Air duct (2), corresponding tempering window (15) in the internal orifice direction of above-mentioned guiding air duct, is constituted between inner furnace wall top and flame retardant coating
It circles round air compartment (11), which is connected to tempering window (15), and top smoke outlet, which connects, states heat collector.
CN201510568339 provides a kind of waste incinerator, and the waste incinerator includes the first furnace body, the second furnace
Body, blower, air inducing portion and smoke exhaust pipe, and it is equipped with spout and slag-drip opening.The utility model setting is for burning solid rubbish
Second furnace body of the first furnace body, gas for being decomposited when burning solid incineration firing, and it is provided with air inducing portion and blower
Introduce air into the first furnace body, the second furnace body and smoke exhaust pipe.
In order to guarantee the full combustion of flue gas, the secondary volume of air supply of dual firing chamber reaches 140-200% theoretical air requirement, operation at
Originally it greatly improves.
Based on above-mentioned deficiency, it is back to leading portion if pyrogenation incinerator comes out flue gas partial calorific value is not only provided and also can be reduced
The exhaust gas volumn of dual firing chamber partially enters dual firing chamber, is controlled by pressure valve and flow valve.And reduce load and the confession of dual firing chamber
Air quantity reduces the generation of nitrogen oxides, reduces gas cleaning processing cost.This is the basic point that the utility model considers, is being pyrolyzed
In burning process, when calorific value deficiency, refluxing portion flue gas can provide required part calorific value and keep calorific value one
Fixed range.
Utility model content
The purpose of this utility model is the system for pyrolyzing and burning for proposing a kind of smoke backflow formula and the burning side based on system
Method flows back utilization to pyrogenation incinerator exit portion flue gas, that is, is back to leading portion pyrolysis gasification furnace, not only provides calorific value also
It can be reduced the exhaust gas volumn of dual firing chamber, control section flue gas enters dual firing chamber, controls by pressure valve and flow valve.And reduce two
The load and volume of air supply for firing room reduce the generation of nitrogen oxides, reduce gas cleaning processing cost.During pyrolytic incineration,
When calorific value deficiency, refluxing portion flue gas can provide required part calorific value and keep calorific value in certain range, drop
The generation of low pollution object.
The specific technical solution of the utility model is as follows: a kind of system for pyrolyzing and burning of smoke backflow formula, including successively connects
Pyrogenation incinerator, the first flue, dual firing chamber, gas fume conveying system and the smoke backflow system connect；The smoke backflow system
System includes that flue gas recirculation extracts blower and concatenated smoke backflow pipeline, and flue gas recirculation extracts blower and concatenated flue gas returns
Flow tube road one end is connected to the parallel connected end of the first flue i.e. inlet end of dual firing chamber, the other end access pyrolysis gasification furnace into
Gas end.
The flue gas recirculation extracts assembling on smoke backflow pipeline, equipped with measurement on the smoke backflow pipeline
The flowmeter of the pressure valve of flue gas static pressure, the thermo detector for measuring flue-gas temperature and smoke backflow amount；On the smoke backflow pipeline
Equipped with smoke washer；First flue or smoke backflow pipeline are equipped with regulating valve, gauge table.
The flue gas output end of dual firing chamber connects temperature-reducing tower by the second flue；Fume treatment auxiliary is connected after temperature-reducing tower；Two
Flue gas enters fume treatment auxiliary after the burning of combustion room or after temperature-reducing tower.
The device of the pyrogenation incinerator or dual firing chamber's air inlet equipped with measurement flue gas oxygen content；Pyrogenation incinerator cigarette
Gas outlet is equipped with flow volume meter Q, thermometer T, flue gas static manometer P；One end connection rubbish heat of smoke backflow pipeline
Incinerator exiting flue gas pipeline is solved, the other end of smoke backflow pipeline connects pyrolysis oven bottom inlet air duct, backflow flue gas reflux
Pass through smoke washer before to pyrolysis oven.
The dual firing chamber bottom is equipped with secondary air conduit air inlet pipe；Temperature-reducing tower, fume treatment auxiliary bottom are connected to flying dust
Collection conduit；Flying dust collection conduit connects flying dust storage device again；The outlet of 103- fume treatment auxiliary is equipped with flue gas outlet and extracts wind
Machine；
Pyrogenation incinerator entrance is equipped with fume extraction blower；Circulation extracts blower under 102- flue gas；
The combustible gas that the pyrolysis oven comes out is partly refluxed to pyrolysis oven, partially enters dual firing chamber and carries out full combustion；
Measure flow volume Q, temperature T, the flue gas static pressure P of pyrogenation incinerator exit flue gas；Measurement pyrogenation incinerator air inlet contains
Oxygen amount；Determine smoke backflow amount, according to measurement data to guarantee the stability run in pyrogenation incinerator.
Flue gas recirculation is connected between pyrolytic incineration outlet of still and dual firing chamber and extracts blower and flow valve, again by flue gas
The combustion product gases that circulation extracts blower extraction section pyrogenation incinerator form flue gas between pyrogenation incinerator, dual firing chamber to follow
Ring, flue gas recirculation extract blower, pressure valve, flow valve and connect with controller；Cigarette is adjusted by monitoring dual firing chamber's furnace temperature
The air quantity of blower is extracted in the size of flow valve or control recycling on gas reflux line, realizes the control of dual firing chamber into exhaust gas volumn；
Or the percent by volume of control pyrogenation incinerator air inlet oxygen content is 7-12%, to guarantee the full combustion of after-flame section.
Further, by monitoring the variation of pyrogenation incinerator outlet pressure, flow valve is big on adjusting smoke backflow pipeline
The air quantity of blower is extracted in small or control recycling, realizes the control of backflow flue gas flow；
Further, flow volume Q, temperature T, flue gas static pressure P and the pyrolytic incineration of pyrogenation incinerator exiting flue gas are measured
The oxygen content of furnace air inlet controls the flow of backflow flue gas with this；Flue gas recirculation extracts the wind pressure of blower, controls pyrolytic incineration
Outlet of still flue-gas temperature fluctuates within the scope of 110 ± 30 DEG C；Pyrogenation incinerator exiting flue gas static pressure P is controlled in ± 85pa range
Interior fluctuation；The volume ratio of pyrogenation incinerator air inlet oxygen content is in 7-12% or so.
Further, smoke washer is set on reflux line, and backflow flue gas is washed before entering pyrolysis oven, goes to remove water
Point, tar and ash content, so as to improve the calorific value of backflow flue gas.
The beneficial effects of the utility model, the utility model can reduce First air (pyrogenation incinerator air feed) and Secondary Air
Air quantity reduces flue gas purification system and handles load, effectively solution refuse thermal value is low, the high brought incineration temperature of water content is low,
The problems such as efficiency of combustion is poor.It reduces First air and preheats cost；Calorific value is provided in pyrogenation incinerator, guarantees the steady of pyrogenation incinerator
Fixed operation, it is appropriate to reduce burner hearth oxygen content, guarantee that rubbish is sufficiently pyrolyzed；Secondary Air (dual firing chamber's air feed) air quantity is reduced, is subtracted simultaneously
Few dual firing chamber can reduce the volume of dual firing chamber in design into kiln gas amount；The flue gas for reducing system for cleaning fume is net
Change amount, therefore reduce the load and processing cost of flue gas purification system.The system is simple, not only provides calorific value and guarantees pyrolytic incineration
The abundant reaction of furnace, also rate reduce operating cost.It can also be mentioned before the fume treatment that the utility model is equipped with by cooling heat absorption
The utilizing status of high-energy source.Flue gas recirculation extracts blower, flue, smoke backflow pipeline；Measure vertical pyrogenation incinerator
The oxygen content of the flow volume Q of exiting flue gas, temperature T, flue gas static pressure P and pyrogenation incinerator air inlet, control reflux with this
The flow of flue gas；Flue gas recirculation extracts the pressure head of blower, and control flue-gas temperature fluctuates within the scope of 110 ± 30 DEG C；Control cigarette
Gas static pressure P is fluctuated within the scope of ± 85pa；The volume ratio of pyrogenation incinerator air inlet oxygen content is in 7-12% or so.This is practical new
Type can reduce First air and Secondary Air air quantity, reduce flue gas purification system and handle load, it is low, aqueous effectively to solve refuse thermal value
The problems such as incineration temperature is low, efficiency of combustion is poor brought by amount height.
Detailed description of the invention
Fig. 1 is a kind of system for pyrolyzing and burning flow chart of smoke backflow formula of the utility model.
It is shown in figure: 1- pyrolysis gasification furnace；2- dual firing chamber；3- temperature-reducing tower；4- fume treatment auxiliary；51- regulating valve；61-
Gauge table；7- air pipeline；The first flue of 8-；9- smoke backflow pipeline；The second flue of 10-；11- secondary air pipe
Road；12- smoke washer；13- flying dust collection conduit；14- flying dust storage device；101- fume extraction blower；Under 102- flue gas
Circulation extracts blower；103- flue gas outlet extracts blower.
Specific embodiment
Embodiment:
As shown in Figure 1, a kind of system for pyrolyzing and burning of smoke backflow formula, including sequentially connected pyrogenation incinerator, two combustions
Room, gas fume conveying system and smoke backflow system；51- regulating valve is serially connected in pyrogenation incinerator with 61- gauge table, dual firing chamber connects
On the first flue having；Domestic waste enters in furnace through pyrogenation incinerator top feed opening, can burning smoke by pyrolysis
Gas a part enters dual firing chamber through flue 8 and carries out full combustion, and one end connection refuse pyrolysis of smoke backflow pipeline burns
The other end of outlet of still flue, smoke backflow pipeline connects pyrolysis oven bottom inlet air duct；A part of combustible fumes passes through back
Flow tube road 9 is back to pyrogenation incinerator.The smoke backflow system includes that flue gas recirculation extraction blower (can be frequency conversion wind
Machine, frequency control end are controlled by the parameter that sensor measurement goes out) and concatenated smoke backflow pipeline, flue gas recirculation extraction
Blower and concatenated smoke backflow pipeline one end are connected to the parallel connected end of the first flue i.e. inlet end of dual firing chamber, the other end
Access the inlet end of pyrolysis gasification furnace.The flue gas that dual firing chamber comes out enters flue gas purifying equipment 4 after temperature-reducing tower 3.102- cigarette
Circulation extracts blower and can connect a check valve under gas.The smoke backflow system includes that flue gas recirculation extracts blower 102
With smoke backflow pipeline 9；Wherein flue gas recirculation extracts blower 102 and is mounted on smoke backflow pipeline 9, is located at smoke backflow pipe
The end of line；The effect of smoke backflow is to improve calorific value in pyrogenation incinerator, and enhancing pyrolysis effect reduces dual firing chamber's flue gas and burns
Amount reduces gas cleaning load.
The flue gas output end of dual firing chamber connects temperature-reducing tower by the second flue；Fume treatment auxiliary is connected after temperature-reducing tower；Two
Flue gas enters fume treatment auxiliary after the burning of combustion room or after temperature-reducing tower.
Temperature-reducing tower (desuperheat tower) can be waste heat exchange device, and thermal energy can be used for generating electricity or industrial heat energy utilizes, only
Flue gas qualified discharge after change, temperature-reducing tower bottom are sent after being equipped with flying dust store collected to dangerous waste landfill yard landfill.The pyrolytic incineration
Furnace 1 is burned for refuse pyrolysis, and for the flammable pneumatic transmission of generation to dual firing chamber 2, dual firing chamber 2 is used for the full combustion of combustible gas.
Pyrogenation incinerator exiting flue gas a part by smoke conveying duct 8 enter dual firing chamber carry out full combustion, one
After dividing flue gas that can also remove tar removing, moisture and ash content using smoke washer, pyrolysis is delivered to by smoke backflow pipeline 9
Incinerator supplements calorific value；
Embodiment of the method: 51 gauge table of measuring device and 61 regulating valves are arranged in pyrolytic incineration outlet of still, measure the stream of flue gas
Volume Q, temperature T, flue gas static pressure P are measured, guarantees the stable operation of pyrogenation incinerator；Pyrogenation incinerator inlet metering oxygen content,
Guarantee the full combustion of base burning section rubbish；Regulating valve is adjusted by the above measuring device to control the flow of backflow flue gas.
The gas recirculating fan is mounted on smoke backflow pipeline, equipped with measurement flue gas on the smoke backflow pipeline
The flowmeter of the pressure valve of static pressure, the thermo detector for measuring flue-gas temperature and smoke backflow amount；First flue or flue gas return
Flow tube road is equipped with regulating valve, gauge table.
Measure flow volume Q, temperature T, flue gas static pressure P and the pyrogenation incinerator air inlet of pyrogenation incinerator exiting flue gas
The oxygen content of mouth, the flow of backflow flue gas is controlled with this；Flue gas recirculation extracts the wind pressure of blower, controls pyrolytic incineration outlet of still
Flue-gas temperature fluctuates within the scope of 110 ± 30 DEG C；Control pyrogenation incinerator exiting flue gas static pressure P is fluctuated within the scope of ± 85pa；
The volume ratio of pyrogenation incinerator air inlet oxygen content is in 7-12% or so.
The utility model is not limited to the above embodiment, using identical or approximate as the above-mentioned embodiment of the utility model
Structure, and obtain other structures design, both be within the protection scope of the present invention.
Claims (6)
1. a kind of system for pyrolyzing and burning of smoke backflow formula, it is characterized in that including sequentially connected pyrogenation incinerator, the first flue gas
Pipeline, dual firing chamber, gas fume conveying system and smoke backflow system；The smoke backflow system includes that flue gas recirculation extracts blower
With concatenated smoke backflow pipeline, flue gas recirculation extracts blower and concatenated smoke backflow pipeline one end is connected to the first flue gas
The parallel connected end of pipeline, that is, dual firing chamber inlet end, the other end access the inlet end of pyrolysis gasification furnace.
2. the system for pyrolyzing and burning of smoke backflow formula according to claim 1, it is characterized in that the flue gas recirculation extracts
Pressure valve, measurement flue gas of the assembling on smoke backflow pipeline, equipped with measurement flue gas static pressure on the smoke backflow pipeline
The thermo detector of temperature and the flowmeter of smoke backflow amount；First flue or smoke backflow pipeline are equipped with regulating valve, meter
Scale.
3. the system for pyrolyzing and burning of smoke backflow formula according to claim 1, it is characterized in that the flue gas output end of dual firing chamber
Temperature-reducing tower is connect by the second flue；Fume treatment auxiliary is connected after temperature-reducing tower；Dual firing chamber burning after or temperature-reducing tower after flue gas
Into smoke washer and fume treatment auxiliary.
4. the system for pyrolyzing and burning of smoke backflow formula according to claim 1, it is characterized in that the pyrogenation incinerator or
Device of dual firing chamber's air inlet equipped with measurement flue gas oxygen content；Pyrogenation incinerator smoke outlet be equipped with flow volume meter Q,
Thermometer T, flue gas static manometer P；One end of smoke backflow pipeline connects refuse pyrolising incinerator exiting flue gas pipeline, smoke backflow
The other end of pipeline connects pyrolysis oven bottom inlet air duct.
5. the system for pyrolyzing and burning of smoke backflow formula according to claim 1, it is characterized in that dual firing chamber bottom is equipped with secondary
Air pipeline air inlet pipe；Temperature-reducing tower, fume treatment auxiliary are equipped with smoke washer；Temperature-reducing tower, fume treatment auxiliary bottom connect
There is flying dust collection conduit；Flying dust collection conduit connects flying dust storage device again；Fume treatment auxiliary outlet is equipped with flue gas outlet and extracts
Blower.
6. the system for pyrolyzing and burning of smoke backflow formula according to claim 1, it is characterized in that pyrogenation incinerator entrance is set
There is fume extraction blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820010849.0U CN208186363U (en) | 2018-01-04 | 2018-01-04 | A kind of system for pyrolyzing and burning of smoke backflow formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820010849.0U CN208186363U (en) | 2018-01-04 | 2018-01-04 | A kind of system for pyrolyzing and burning of smoke backflow formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208186363U true CN208186363U (en) | 2018-12-04 |
Family
ID=64442253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820010849.0U Active CN208186363U (en) | 2018-01-04 | 2018-01-04 | A kind of system for pyrolyzing and burning of smoke backflow formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208186363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981489A (en) * | 2020-08-31 | 2020-11-24 | 重庆川然节能技术有限公司 | Incinerator secondary combustion chamber smoke temperature self-adjusting system |
| CN114453398A (en) * | 2021-12-10 | 2022-05-10 | 南京万德斯环保科技股份有限公司 | System for utilize direct organic waste pyrolysis carbomorphism of circulation flue gas |
-
2018
- 2018-01-04 CN CN201820010849.0U patent/CN208186363U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981489A (en) * | 2020-08-31 | 2020-11-24 | 重庆川然节能技术有限公司 | Incinerator secondary combustion chamber smoke temperature self-adjusting system |
| CN111981489B (en) * | 2020-08-31 | 2023-05-16 | 重庆川然节能技术有限公司 | Smoke temperature self-adjusting system for secondary combustion chamber of incinerator |
| CN114453398A (en) * | 2021-12-10 | 2022-05-10 | 南京万德斯环保科技股份有限公司 | System for utilize direct organic waste pyrolysis carbomorphism of circulation flue gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204460231U (en) | A kind of incinerator reduces discharged nitrous oxides system | |
| CN201159471Y (en) | High temperature flue gas ejector | |
| CN102980194B (en) | A kind of low nitrogen of rubbish and Di bioxin fire grate incinerating method and device thereof | |
| CN202762274U (en) | System for purifying organic waste gases and recycling heat energy | |
| CN101037193A (en) | Technology and device for producing yellow Phosphorus by electric oven process | |
| CN106949480A (en) | A kind of pyrogenation incinerator | |
| CN103644562A (en) | Combined type energy-saving biomass fuel boiler | |
| CN103644561B (en) | A kind of high-efficiency energy-saving biomass steam generator system | |
| CN208186363U (en) | A kind of system for pyrolyzing and burning of smoke backflow formula | |
| CN108397773A (en) | A kind of mixed combustion equipment of biomass pyrolytic oil gas | |
| CN102777890B (en) | Biomass fuel boiler | |
| CN101666490B (en) | Burning system for directly burning low-volatilization powder carbocoal by using high-temperature air | |
| CN201053764Y (en) | Highly efficient energy-saving heat-conductive oil stove | |
| CN206300215U (en) | A kind of system of utilization biomass gasified gas combustion heating SCR inlet flue gas | |
| CN202993224U (en) | Garbage incinerator furnace chamber furnace arch and arrangement device of secondary air nozzles | |
| CN201437987U (en) | Waste gas incinerator | |
| CN201281400Y (en) | Dead oil burning air heating equipment | |
| CN2864469Y (en) | Vertical three-room gas boiler for coal gasification | |
| CN104132372B (en) | A kind of burner of high-efficient energy-saving environment friendly | |
| CN103398397A (en) | Combustion system of boiler and combustion method implemented by aid of system | |
| CN208349281U (en) | Change the Novel furnace cove-shaped boiler of biomass-burning for spreader stoker boiler | |
| CN107588422A (en) | A kind of heat-storage catalytic pyrolysis and combustion device | |
| CN113587083A (en) | Grate furnace primary air distribution adjusting device and adjusting method | |
| CN208042119U (en) | Parallel-connection type coal-burning powder heat medium heater | |
| CN205579541U (en) | High -efficient low nitrogen gas burner of living beings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |