Utility model content
The purpose of this utility model is to overcome certain or some problem in above-mentioned background technology, there is provided one kind is used for
The cracking incinerator that danger waste is processed.
Feed zone, cracking section, incineration area are divided into from top to bottom according to cracking incinerator of the present utility model and are slagged tap
Section, wherein feed zone is provided with charging aperture and exhanst gas outlet, and incineration area is respectively arranged with oppositely rolling roller crusher fire grate up and down, slags tap
Section is provided with air inlet and slag notch;Material to be burned is entered from top to bottom from charging aperture, air from air inlet Jing slag tap section by
Under up flow into, material to be burned first forms solidss and cracking gas in cracking section cracking gasification, and solidss are burnt into incineration area
Burn, the cracking gas that the flue gas that incineration area is generated is generated with cracking section is together expelled to next stage burner from exhanst gas outlet.
In a specific embodiment of the present utility model, feed zone is provided with stock distributor.Distributed by material
Device will equably fall into cracking section after material dispersion is burned.
In another specific embodiment of the present utility model, it is provided with the roller outer peripheral face of oppositely rolling roller crusher fire grate
Grinding tooth, can crush to material.
In another specific embodiment of the present utility model, slagged tap from conveying worm, helical feed equipment
There are closing housing and the spiral scraper in housing.Air inlet and slag notch are set on screw conveyor housing.
Under concrete condition, incineration area has auxiliary combustion equipment.Fuel gas (example can be input into incineration area by auxiliary combustion equipment
Such as natural gas) and lighted a fire.
Using cracking incinerator of the present utility model, can first treat incinerated matter carries out cracking gasification, then to fixation
Carbon and cracking gas carry out subregion burning such that it is able to which treating incinerated matter carries out sufficiently thoroughly burning disposal;And adopt slag wind
Chill formula, greatly improves production efficiency and energy utilization rate.
Specific embodiment
Describe cracking incinerator of the present utility model below in conjunction with the accompanying drawings in detail.Those skilled in the art should manage
Solution, the embodiments described below are only to exemplary illustration of the present utility model, not for any restriction is made to which.
Fig. 1 shows the danger waste subregion CIU that incinerator is cracked using this utility model, and which includes cracking
Incinerator 100 and secondary combustion chamber 200.Be mainly used in danger waste burning disposal, also apply be applicable to other fuel or
The burning disposal of house refuse.Treat that the form of incinerated matter is mainly solid-state bulk material, can also add liquid object or paste (half
Solid-state).
Cracking incinerator 100 is vertical structure, is divided into feed zone 110, cracking section 120, incineration area 130 from top to bottom
With section 140 of slagging tap.Feed zone 110 is provided with charging aperture 111 and exhanst gas outlet 113, and charging aperture 111 is generally arranged at cracking gasification
The top of incinerator 100, exhanst gas outlet 113 are generally arranged on the side wall of cracking incinerator 100.In charging aperture 111
Preferably disposed below there is stock distributor 112, from the entrance of charging aperture 111 after incinerated matter Jing after the dispersion of stock distributor 112
Cracking section 120 is fallen into equably.
Connected (separate) by upper fire-grating 131 between cracking section 120 and incineration area 130, incineration area 130 and section 140 of slagging tap
Between connected (separate) by lower fire grating 132.In the embodiment shown in the drawings, upper fire-grating 131 and lower fire grating 132 all adopt right
Kibbler roll (roller tooth disintegrating machine), the roller of oppositely rolling roller crusher are arranged in burner hearth, and drive mechanism (motor) is arranged on and splits
The outside of solution incinerator 100.Multiple rollers are covered with the cross section of burner hearth side by side, and the outer peripheral face of each roller is provided with to be nibbled
Tooth.Certain gap is provided between adjacent rollers, material continuously can be conveyed downwards, gas can be allowed again to convey from the bottom up.
During work, two adjacent rollers are rotated against, so as to broken backward lower conveying, the material after crushing are carried out to material or slag
Can burn rapidly in incineration area 130.Auxiliary combustion equipment 133 is provided with furnace wall between positioned at upper and lower fire grate, by combustion-supporting dress
Put 133 to be input into fuel gas (such as natural gas) to incineration area 130 and be lighted a fire.Can be with the furnace wall of incineration area 130
Temperature and oxygen content monitor are set, for temperature and oxygen content in real-time detection incineration area 130.
140 bottom of section of slagging tap is provided with conveying worm 141, and conveying worm 141 has closing housing and is located at housing
Interior spiral scraper 142, the upper opening for closing housing are connected with the inside of cracking incinerator 100.On closing housing
It is provided with air inlet 143 and slag notch 144.Air inlet 143 can be connected with primary blower, for supplying to incineration area 130
Answer First air.The First air entered from air inlet 143 first carries out heat exchange with slag, makes while cooling of furnace slag to enter First air
Row preheating, the slag Jing slag notches 144 after cooling are outwards conveyed, and can be delivered directly to slag storehouse or by closed freight house card
Car is outwards conveyed.In Fig. 1, the set location of air inlet 143 and slag notch 144 is merely illustrative, can be arranged on according to specific needs
Other correct positions of closing housing.
The exhanst gas outlet 113 of cracking incinerator 100 is by pipeline and the bottom air inlet 201 of secondary combustion chamber 200
Connection.The top offgas outlet 205 of secondary combustion chamber 200 is for being connected with exhaust treatment system.In cracking incinerator 100
Flying dust expansion chamber 150 is preferably provided with the connecting line of secondary combustion chamber 200, for settling and collecting flying dust in flue gas,
Reduce into the solid particle in flue gas in secondary combustion chamber 200.150 bottom of flying dust expansion chamber is provided with Dual-gravity cindervalve
151, for the flying dust that outwards conveying is collected.Due to very little into fly ash content in the flue gas in secondary combustion chamber 200, therefore
The grey quantity of slag produced in secondary combustion chamber 200 just seldom, therefore only need to arrange shoot door 210 in 200 bottom of secondary combustion chamber,
Shoot door 210 is opened when secondary combustion chamber 200 does not work and pours out lime-ash.
200 bottom of secondary combustion chamber is provided with secondary wind entrance 204, is connected with secondary blower, to secondary firing
Sufficient air is provided in room 200 and ensures that cracked gas are fully burned.Secondary wind entrance 204 is connected with annular gas point
Orchestration 206, for equably filling into air into secondary combustion chamber 200.In addition, the bottom of secondary combustion chamber 200 can also set
Auxiliary combustion equipment (not shown) is equipped with, and combustion-supporting or igniting is carried out for the middle afterburning gas that sprays into into secondary combustion chamber 200.
Work of the lower mask body introduction according to cracking incinerator of the present utility model and danger waste subregion CIU
Principle and the course of work.
General plotting of the present utility model is to make to treat that incinerated matter (waste of for example endangering) first carries out cracking gas, forms fixed carbon
Then their subregions are burnt by part and cracking gas part again.
Cracking incinerator 100 in, after incinerated matter from charging aperture 111 enter after from top to bottom motion sequentially pass through into
Material section 110, cracking section 120, incineration area 130, section of slagging tap 140.Treat that incinerated matter is toasted by high temperature in cracking section 120, complete
Cracking gasification, forms solidss (mainly containing fixed carbon) and cracking gas (mainly containing alkanes, hydrocarbon component).Jing after high-temperature baking
Solidss under the drive of upper fire-grating 131 enter incineration area 130.Flue gas and pyrolysis gas together upwardly through the bed of material, to material
Layer is preheated and baking, material to be burned fully is dehydrated, and the bed of material plays a role in filtering to flue gas, and the later stage is greatly lowered
Dust concentration in flue dust, mitigates the load of later stage exhaust treatment system.The low flue gas of dust content and cracking gas are together entered
Secondary combustion chamber 200 carries out secondary after-flame.
First air is entered from air inlet 143, and Jing slag layers enter incineration area 130.By First air and slag heat exchange, make
Slag temperature is reduced, and one time air temperature is raised.The supply of First air air quantity is needed according to determination of oxygen content instrument real-time regulation in stove,
Guarantee 130 appropriate oxygen supply of incineration area, the fuel gas cracked out in cracking section 120 can not burn.
A big feature of the present utility model is that gas-solid is driven in the wrong direction, and material is fully dried, and enters and burn when being close to burning-point
Area, incineration area are thoroughly carbonized burning-up.The bed of material filters substantial amounts of dust, and the cleannes of gas are higher.And+two grades of existing rotary kiln
The CIU of combustor, material carry out mixed combustion (not only cracked but also burnt) in rotary kiln, containing big in the flue gas of generation
Amount solid particle, needs to fill into a large amount of afterburning gases when burning in secondary combustion chamber;And the dust content in tail gas is high, plus
The big difficulty of follow-up vent gas treatment.
Additionally, another big advantage of the present utility model is the air-cooled pattern of slag.And the slag produced by conventional incinerators leads to
Frequently be water-cooled pattern, the vapor in cooling procedure enters incineration area and can reduce the ignition temperature of incineration area, affects to burn
Quality is burnt, the slag after water-cooled generally using mode is dried, ooze in underground in slag by the sewage major part containing high pollution composition,
Form secondary pollution.And this utility model adopt the air-cooled pattern of slag, slag obtain in the case of not in contact with the ground cooling and
Conveying, had both made full use of the energy and saving water resource, and can prevent the pollution of the environment again.