CN206347578U - A kind of waste incineration air and gas system - Google Patents
A kind of waste incineration air and gas system Download PDFInfo
- Publication number
- CN206347578U CN206347578U CN201621483827.3U CN201621483827U CN206347578U CN 206347578 U CN206347578 U CN 206347578U CN 201621483827 U CN201621483827 U CN 201621483827U CN 206347578 U CN206347578 U CN 206347578U
- Authority
- CN
- China
- Prior art keywords
- air
- incinerator
- waste incineration
- gas system
- fire grate
- 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 waste incineration air and gas system, waste incineration air and gas system, including garbage pool and incinerator, fire grate is provided with incinerator, inlet air plenum is provided with below the fire grate, the air intake of primary air fan connects the garbage pool, and outlet air end connects the inlet air plenum；It is connected with the burning furnace upper end above overfire air fan, burner hearth of the overfire air fan outlet air end through pipeline communication to the incinerator；The incinerator rear is provided with flue gas purification system；Temperature sensor of the incinerator provided with start-up burner and detection in-furnace temperature.The utility model waste incineration air and gas system and incineration control method, it is adaptable to the rubbish that domestic calorific value is low, moisture content is high, it is not necessary to add auxiliary fuel, can be achieved fully burning, emission request, energy-conservation and environmental protection be met, with preferable application prospect.
Description
Technical field
The utility model belongs to technical field of waste treatment, more specifically to waste incineration air and gas system.
Background technology
The processing of rubbish is the Tough questions that Process of Urbanization and economic development are faced, and in the prior art, refuse depot exists
Refuse burning system can not adapt to domestic high-moisture, the rubbish of low heat value, and waste incineration is not exclusively, and its emission is to periphery
Environment can affect.
Utility model content
The purpose of this utility model is to solve the problem of prior art is present to add auxiliary fuel there is provided one kind,
Fully burning can be achieved, the waste incineration air and gas system and incineration control method of emission request, energy-conservation and environmental protection is met.
To achieve these goals, the technical scheme that the utility model is taken is：The waste incineration air and gas system provided,
Including garbage pool and incinerator, it is characterised in that：Fire grate is provided with incinerator, inlet air plenum is provided with below the fire grate, once
The air intake of blower fan connects the garbage pool, and outlet air end connects the inlet air plenum；Secondary Air is connected with the burning furnace upper end
Above machine, burner hearth of the overfire air fan outlet air end through pipeline communication to the incinerator；The incinerator rear is provided with
Flue gas purification system；Temperature sensor of the incinerator provided with start-up burner and detection in-furnace temperature.
To make above-mentioned technical proposal more detailed and specific, the utility model also provides optimization technique further below
Scheme, to obtain satisfied practical function：
The fire grate includes drying fire grate successively in step arrangement, combustion grate and burn-out grate, distinguishes thereunder
Provided with inlet air plenum corresponding with each fire grate.
Control respectively is equipped with the pipeline for connecting each inlet air plenum by primary air fan and enters air mass flow in each inlet air plenum
Flow valve.
Provided with the preheater preheated to air on pipeline between the primary air fan and the inlet air plenum.
The preheater is two-part steam air heater, and regulation is provided with the preheater entrance point pipeline
Valve.
Flue gas purification system rear pipeline is provided with EGR blower fans, and the EGR blower fans outlet air end is connected to by pipeline
Above the burner hearth of the incinerator.
Auxiliary burner is additionally provided with the incinerator.
The utility model compared with prior art, with advantages below：The utility model waste incineration air and gas system, is applicable
In the rubbish that domestic calorific value is low, moisture content is high, it is not necessary to add auxiliary fuel, fully burning can be achieved, emission request is met, saves
Energy and environmental protection, with preferable application prospect.
Brief description of the drawings
The mark in the content and figure expressed by the accompanying drawing of this specification is briefly described below：
Fig. 1 is the utility model refuse burning system and its air and gas system schematic diagram；
Marked in figure：1st, doffer, 2, feed device, 3, leachate collection groove；
4th, fire grate, 5, inlet air plenum, 6, burner hearth, 7, primary air fan, 8, preheater, 9, overfire air fan, 10, incinerator, 11, cigarette
Gas cleaning system, 12, EGR blower fans, 13, air-introduced machine.
Embodiment
Below against accompanying drawing, by the description to embodiment, further detailed is made to embodiment of the present utility model
Thin explanation.
The utility model waste incineration air and gas system, including garbage pool and incinerator 10, rubbish is by garbage crane from rubbish
Pond hangs in doffer 1, is fallen into by doffer 1, then pushes to rubbish in incinerator 10 through feed device 2, and percolate is received
Collect groove 3 located at the lower section of feed device 2, receive percolate.Fire grate 4 is provided with incinerator 10, air intake is provided with below fire grate 4
Room 5.The air intake connection garbage pool of primary air fan 7, outlet air end connection inlet air plenum 5；Secondary Air is connected with the upper end of incinerator 10
Machine 9, burner hearth 6 top of the outlet air end of overfire air fan 9 through pipeline communication to incinerator 10；Incinerator rear is provided with flue gas purification system
11；Temperature sensor of the incinerator 10 provided with start-up burner and detection in-furnace temperature.
According to the instruction of Combustion System, the feed device 2 of hydraulic cylinder type can be used, rubbish push-in is burnt by the speed of setting
Burn in stove 10, rubbish is constantly stirred and incited somebody to action by the operation of fire grate 4 by the siege being made up of in stove fixed grate with motion fire grate
It is pushed forward.Fire grate 4 includes drying fire grate successively in step arrangement, combustion grate and burn-out grate, distinguishes thereunder
Provided with inlet air plenum 5 corresponding with each fire grate.Rubbish is by drying, burning and burn process in incinerator 10, and clinker is by burning
Duan Houduan falls into mucking machine.
Control respectively is equipped with the pipeline for connecting each inlet air plenum 5 by primary air fan 7 and enters air stream in each inlet air plenum 5
The flow valve of amount.
Provided with the preheater 8 preheated to air on pipeline between primary air fan 7 and inlet air plenum 5.For combustion-supporting
First air temperature is reached 200 DEG C~220 DEG C by steam preheating so that just enter the rubbish rapid draing of stove, catch fire and
Burning.The excess air coefficient of incinerator is designed more than 1.5, with oxygen amount sufficient in holding furnace, reduces the generation of bioxin.
In the top of incinerator 10, sprayed into by the high speed of high temperature secondary wind, flue gas is sufficiently disturbed, extended in burner hearth
Residence time, to improve combustion position, it is ensured that flue-gas temperature reaches more than 850 DEG C, more than 2 seconds residence time in burner hearth 6.Cigarette
The rear pipeline of gas cleaning system 11 is provided with EGR blower fans 12, and the outlet air end of EGR blower fans 12 is connected to the combustion of incinerator 10 by pipeline
Burn the top of burner hearth 6, i.e. EGR blower fans and be exported to extraction on the flue of air-introduced machine 13 from smoke processing system, be all sent to secondary combustion
Burn room.
Preheater 8 is two-part steam air heater, and regulating valve is provided with the entrance point pipeline of preheater 8, to control
Air themperature processed.Using two-part steam air heater, one section heated by extracted steam from turbine, two sections taken out by superheater outlet
Vapour is heated.Due to containing dust from the air that dump pit is extracted, therefore steam air heater is taken using light pipe and wide spacing
Pipeline.
Incinerator combustion air fan by supply fire grate garbage combustion air primary air fan 7 and supply secondary combustion chamber combustible
The overfire air fan 9 and EGR blower fans 12 of combustion air are constituted.Primary air fan 7 is evacuated at dump pit, after being preheated by primary air
It is supplied to fire grate garbage to burn.Overfire air fan 9 is evacuated at the top of incinerator workshop, and EGR blower fans 12 are exported from smoke processing system
Extracted on to the flue of air-introduced machine 13, be all sent to secondary combustion chamber.The combustion air flow for supplying fire grate each several part passes through preheating
The bypass flow valve of device 8 is adjusted, and the temperature of corresponding main burning air can also realize control.
Primary air fan 7 extracts the air in rubbish storing hole, pressure in hole can be made to maintain negative pressure state, to prevent foul smell
Escape.Feeding fire grate bottom inlet air plenum 5 after First air is heated to 220 DEG C through steam type airheater, hot-air by calorific value it is low, contain
The high rubbish of water rate is effectively disturbed and just dried.Auxiliary air and EGR (flue gas recirculation) wind of after-burner is respectively by two
Secondary blower fan 9 extracts incineration plants headspace and is exported to by smoke processing system on the flue of air-introduced machine 13 and extracted, as combustion-supporting
Wind, is sprayed into burner hearth throat position by nozzle with very high speed, stirs flue gas, strengthens the disturbance of gas in burner hearth, it is ensured that
The mixing of combustion gas, eliminates unburned volatile matter.
1 start-up burner is installed in furnace wall after incinerator, is used to burn furnace igniting.1 is installed on incinerator top
Auxiliary burner, to ensure that flue gas reaches 850 DEG C of stops, 2 seconds states in incinerator burner hearth.
Start-up burner is made up of burner body, electronic ignition device, control panel and safety device, is arranged in rear wall every
Stove sets 1.When burning furnace igniting in stove under without rubbish state, burner makes heater outlet temperature rise to after 600 DEG C, then throws
Entering waste incineration makes furnace temperature slowly rise to more than nominal operating temperature (850 DEG C).If the Temperature Distribution of steep temperature rise stove material is also sent out
Raw acute variation, because of the effect of thermal machine power, producer material surface is peeled off, and shortens the service life of refractory material, because
This start-up burner should carry out periodically temperature adjustment to prevent the drastically change of furnace temperature.Identical during with starting is used during blowing out
Start-up burner, makes furnace temperature slowly decline, and to prevent the drastically change of temperature, and makes the combustible remained on combustion grate complete
Burning.The capacity of burner by igniting and stopping when heating and cooling the need for measure and determine, waste of low heating value burning can be provided
Required heat supplement.Start-up burner can withdraw from incinerator manually.
Auxiliary burner is made up of burner body, electronic ignition device, control panel and safety device, is arranged in a side wall
1 is set per stove.Auxiliary burner is designed to keep the temperature of secondary combustion chamber more than 850 DEG C and gas residence time
No less than 2 seconds.Start-up burner and auxiliary burner make fuel using diesel oil.Incinerator side wall is provided with auxiliary burner, cloth
Put in adiabatic furnace, when the refuse thermal value for entering stove is relatively low so that when fire box temperature is less than 850 DEG C, the system will be automatically engaged.
To incineration firing state, operator can be by being arranged on the camera of incinerator rear end, in the industrial electro of Central Control Room
Depending on upper observation.Incinerator combustion air is extracted out by air blower from garbage pool top, through steam air heater, is carried out two-stage and is added
Hot (about 220 DEG C of air themperature), as First air, is introduced into the public air compartment of fire grate bottom, then enter through each air adjustment baffle plate
Enter hearth combustion.In addition, First air also acts the effect of cooling fire grate.Secondary Air is extracted out by overfire air fan between incinerator,
Sprayed into again through side nozzle before and after incinerator in stove.Burn away the refuse the primary air amounts of needs, changed by primary air fan frequency converter
Motor speed is controlled, and secondary air flow equally changes motor speed to be controlled using frequency converter.It is combustion-supporting in order to control
Air themperature, in the steam inlet of steam air heater, installs regulating valve.What steam air heater flowed out dredges
Water, is directly entered oxygen-eliminating device.The clinker produced after waste incineration, is extinguished with water in mucking machine, cooled, then will by mucking machine
Clinker is transferred out.Mucking machine uses water seal, to prevent air from being leak into by mucking machine in stove, it is ensured that combustion chamber draft.
A kind of refuse incineration control method, comprises the following steps：
1) starting ignition burner, burns furnace igniting, and burner makes heater outlet temperature rise to 600 DEG C；
2) waste incineration is put into by doffer, start-up burner makes furnace temperature slowly rise to and is not less than nominal operating temperature
850℃；
3) primary air fan extracts First air above garbage pool, and the preheated device of First air is sent after being heated to 200 DEG C~220 DEG C
Enter fire grate bottom inlet air plenum；
4) overfire air fan is extracted out above incinerator and sprays into stove by nozzle above Secondary Air, then the burner hearth through incinerator
It is interior；
5) EGR blower fans are discarded what is discharged by flue gas purification system through circulating combustion profit above nozzle penetrating burner hearth
With；
6) clinker is discharged by slag notch after the completion of burning, and is shut down again after slowly reducing in-furnace temperature.
Flue gas after burning, realizes fully burning, reduces CO content, and make flue gas 850 after being stirred through Secondary Air
Stopped more than 2 seconds under DEG C environment, to ensure that bioxin is fully decomposed.
Auxiliary burner is additionally provided with incinerator 10.If temperature sensor detects in-furnace temperature and is less than in burning process
Nominal operating temperature, then auxiliary burner, which starts, lifts in-furnace temperature to nominal operating temperature.
Each grate area waste incineration situation in incinerator is monitored by monitoring camera, then passes through the flow of each inlet air plenum
Valve regulation control enters the air capacity of each air compartment.
A part helps combustion air to be introduced through primary air fan 7 above dump pit, is preheated through two-stage steam type airheater
To about 220 DEG C, into the inlet air plenum 5 of the bottom of fire grate 4, it is combustion-supporting that the air vent through fire grate 4 enters burner hearth.Overfire air fan 9 is provided separately
A part of combustion air, Secondary Air air draught from dump pit or on the spot is entered through overfire air jet by overfire air fan 9 and burned
Stove.
In the first exhaust gases passes of incinerator, the ammoniacal liquor progress SNCR denitration for burning the high-temperature flue gas produced and penetrating is anti-
Should.High-temperature flue gas after denitration is after waste heat boiler carries out heat exchange, and flue-gas temperature is cooled to 190~230 DEG C or so, cold
But the flue gas after enters the half dry type reaction tower of flue gas purification system 11 by flue, is filled with the cooling water and slaked lime powder of penetrating
It is removed after dividing the neutralization reaction of HCl, SO2 and Ca (OH) 2 in mixing, flue gas.After the reacted tower neutralization reaction of high-temperature flue gas, enter
One step is cooled to 140~160 DEG C and enters sack cleaner.Activated carbon is provided with flue between sack cleaner and reaction tower
Jet mixer, can be further because the filter bag fiber surface of sack cleaner has one layer of Ca (OH) 2 and active carbon powder
The material such as acidic materials and bioxin and heavy metal is removed, and removes dust, flue dust (flying dust under being separated) delivers to flying dust
Processing system carries out curing process.Flue gas is discharged into chimney by air-introduced machine 13 after sack cleaner is clean and enters air.
Incinerator is provided with auxiliary burner, to keep flue gas temperature of hearth outlet more than 850 DEG C, when the calorific value of rubbish
During ignition temperature that is relatively low and being unable to reach more than 850 DEG C, according to the feedback information of temperature measuring equipment in incinerator, it can throw automatically
Enter operation.
The percolate collected by garbage warehouse, delivered to after concentration Sewage Disposal processing it is up to standard after reuse, as following
The moisturizing of ring cooling water, realizes wastewater zero discharge.
Clinker is delivered to cement plant with flying dust and used as cement raw material, or clinker take-away is done into building material, by flying dust
Carry out landfill disposal after chelating solidification.
Waste heat boiler absorbs the heat in high-temperature flue gas by working medium of water, produces 4.00MPa, 400 DEG C of steam, steam supply wheel
Generating set generates electricity.The electric power of generation is except for our factory, in addition to, excrescent electric power sends into area power grid.
The utility model waste incineration air and gas system and incineration control method, it is adaptable to which domestic calorific value is low, moisture content is high
Rubbish, it is not necessary to add auxiliary fuel, can be achieved fully burning, meet emission request, energy-conservation and environmental protection, with preferable application
Prospect.
The utility model is exemplarily described above in conjunction with accompanying drawing, but the utility model be not limited to it is above-mentioned
Mode, as long as conceiving the improvement of the various unsubstantialities carried out with technical scheme using method of the present utility model or directly applying
In other occasions, all fall within protection domain of the present utility model.
Claims (7)
1. a kind of waste incineration air and gas system, including garbage pool and incinerator, it is characterised in that：Fire grate is provided with incinerator,
Inlet air plenum is provided with below the fire grate, the air intake of primary air fan connects the garbage pool, and outlet air end connects the inlet air plenum；
The burning furnace upper end is connected with overfire air fan, combustion furnace of the overfire air fan outlet air end through pipeline communication to the incinerator
Above thorax；The incinerator rear is provided with flue gas purification system；The incinerator is provided with temperature in start-up burner and detection stove
The temperature sensor of degree.
2. according to the waste incineration air and gas system described in claim 1, it is characterised in that：The fire grate includes arranging in ladder successively
The drying fire grate of row, combustion grate and burn-out grate, are respectively equipped with inlet air plenum corresponding with each fire grate thereunder.
3. according to the waste incineration air and gas system described in claim 2, it is characterised in that：Each inlet air plenum is being connected by primary air fan
Pipeline in be equipped with respectively control enter each inlet air plenum in air mass flow flow valve.
4. according to the waste incineration air and gas system described in claim 3, it is characterised in that：In the primary air fan and the air intake
Pipeline between room is provided with the preheater preheated to air.
5. according to the waste incineration air and gas system described in claim 4, it is characterised in that：The preheater be two-part steam-
Air preheater, regulating valve is provided with the preheater entrance point pipeline.
6. according to the waste incineration air and gas system described in claim 1, it is characterised in that：Flue gas purification system rear pipeline
EGR blower fans are provided with, the EGR blower fans outlet air end is connected to by pipeline above the burner hearth of the incinerator.
7. according to the waste incineration air and gas system described in claim 1, it is characterised in that：Auxiliary combustion is additionally provided with the incinerator
Burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621483827.3U CN206347578U (en) | 2016-12-30 | 2016-12-30 | A kind of waste incineration air and gas system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621483827.3U CN206347578U (en) | 2016-12-30 | 2016-12-30 | A kind of waste incineration air and gas system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206347578U true CN206347578U (en) | 2017-07-21 |
Family
ID=59319945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621483827.3U Active CN206347578U (en) | 2016-12-30 | 2016-12-30 | A kind of waste incineration air and gas system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206347578U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678830A (en) * | 2016-12-30 | 2017-05-17 | 安徽海螺川崎工程有限公司 | Waste incineration flue gas and air system and incineration control method |
| CN107655034A (en) * | 2017-10-26 | 2018-02-02 | 王正满 | Annular flame household warming stove |
-
2016
- 2016-12-30 CN CN201621483827.3U patent/CN206347578U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678830A (en) * | 2016-12-30 | 2017-05-17 | 安徽海螺川崎工程有限公司 | Waste incineration flue gas and air system and incineration control method |
| CN107655034A (en) * | 2017-10-26 | 2018-02-02 | 王正满 | Annular flame household warming stove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106678830A (en) | Waste incineration flue gas and air system and incineration control method | |
| CN203869049U (en) | Hazardous waste incineration system | |
| CN208398087U (en) | A kind of domestic garbage pyrolysis innoxious burning equipment | |
| CN105114955A (en) | Preparation method based on rotary kiln-type continuous distillation pyrolysis and gasification incinerator | |
| CN102944018A (en) | Burning and waste heat power generation system for hazardous wastes | |
| CN106224974B (en) | Waste incineration processing system | |
| CN207501152U (en) | A kind of integrated form pyrolytic gasification cooperates with combustible gas high-temperature process house refuse system | |
| CN111256147A (en) | Household garbage pyrolysis gasification incineration grate furnace and treatment system thereof | |
| CN218721507U (en) | High-efficient domestic waste burns burning furnace air distribution system | |
| CN111928263A (en) | System for utilize rotary kiln to burn burning furnace and handle hazardous waste | |
| CN106500111A (en) | Refuse burning system | |
| CN100432532C (en) | Combined incineration treatment method for refuse and special vertical oxygen-enriched continuous incinerator | |
| CN206430163U (en) | A kind of refuse burning system | |
| CN206347578U (en) | A kind of waste incineration air and gas system | |
| CN108506943B (en) | A kind of coal fired boiler of power plant burns the method and system of the waste containing biomass | |
| CN206055638U (en) | For the cracking incinerator of waste process of endangering | |
| CN207815342U (en) | A kind of garbage burning boiler | |
| CN206648040U (en) | A kind of waste incineration secondary air duct system | |
| CN109210546A (en) | A kind of incineration plants material hole refuse processing method | |
| CN201437987U (en) | Waste gas incinerator | |
| CN212108415U (en) | Household garbage pyrolysis gasification incineration grate furnace and treatment system thereof | |
| CN100381756C (en) | Method for high temperature borning away refuse and its equipment | |
| CN107504502A (en) | A kind of waste fluid burning plant and technique | |
| CN106568087A (en) | Garbage treatment system | |
| CN206430149U (en) | A kind of secondary combustion system of middle flow pattern chamber structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |