CN208124275U - A kind of integral type chain-type offal burner - Google Patents

Abstract

The utility model discloses a kind of integral type chain-type offal burners to set traveling-grate stoker, face arch and rear arch including the furnace body with feed hopper and pipe in furnace body, and is formed as triangle combustion chamber, is burner hearth above combustion chamber；Combustion chamber and the two sides of burner hearth are water-cooling wall；Burner hearth rear sets heat-exchanger rig, which includes upper drum, lower drum and the convection bank for connecting upper drum, lower drum；Heat-exchanger rig rear sets economizer；Convection bank and economizer periphery set multiple pulse soot blowers；Bottom of furnace body sets ash bucket；It is equipped with the rotation charging gear to link with traveling-grate stoker in feed hopper, sets air compartment below traveling-grate stoker；Combustion chamber is respectively equipped with the flue gas jet pipe that a row connect with pipe with burner hearth.The utility model burning time is long, and oxygen supply is sufficient, low nitrogen burning, energy conservation and environmental protection, is a kind of device of directly processing tobacco stem waste.

Description

A kind of integral type chain-type offal burner

Technical field

The utility model relates to a kind of offal burner more particularly to a kind of integral type chain-type offal burners.

Background technique

The waste generated in the tobacco redryings production processes such as offal, tobacco leaf powder, the miscellaneous tobacco leaf of mould is always puzzlement enterprise One problem of industry development.Land-fill method processing is generallyd use at present, and not only processing cost is high, but also wastes valuable life The substance energy.If other any fuel can not be added using wastes such as whole offals as direct fuel, offal does not have to any add Work may be either that enterprise provides redrying steam, and can be reduced the usage amount of fossil fuel or coal, save redrying enterprise offal powder Broken power consumption and offal crush bring environmental pollution and security risk, can also open up a new way for business processes waste Diameter.

Currently, the offal burner generallyd use uses multifuel combustion offal, need to add other biological matter fuel or combustion Coal, solution offal combustion process calorific value is low, and density is small, and the big problem of tar content needs to crush offal, adds combustion-supporting Agent, it is re-compacted at granular fuel.And it processes compressed granulate fuel not only power consumption is big, but also offal is in combustion It is easy coking and blocking heating surface, scarfing cinder difficulty；There is also the defects of insufficient of burning simultaneously.

Utility model content

In view of the above defects of the prior art, it is directly burning that the utility model, which is intended to provide one kind with offal, Object, and sectional oxygen supply and flue gas recirculation make low nitrogen burning sufficiently, be not easy coking and blocking, the convenient integral type chain-type of scarfing cinder Offal burner.

To achieve the goals above, the utility model uses following technical scheme：

A kind of integral type chain-type offal burner sets chain in furnace body including the furnace body with feed hopper and pipe Fire grate, face arch and rear arch, and be formed as triangle combustion chamber, it is burner hearth above combustion chamber；Combustion chamber and combustion furnace The two sides of thorax are water-cooling wall；Burner hearth rear sets heat-exchanger rig, which includes in upper drum, lower drum and connection The convection bank of drum, lower drum；Heat-exchanger rig rear sets economizer；Convection bank and economizer periphery set multiple impulse soot blowings Device；Bottom of furnace body sets ash bucket；It is equipped with the rotation charging gear to link with traveling-grate stoker in feed hopper, sets wind below traveling-grate stoker Room；Combustion chamber is respectively equipped with the flue gas jet pipe that a row connect with pipe with burner hearth.

The economizer includes level-one economizer and second level economizer, to improve the heat utilization efficiency of flue gas.

The pulse soot blower is mainly disposed at the gas inlet of convection bank and exit, and is arranged in economizer Gas inlet at.

In above scheme, in order to control the reasonable amount of fuel, offal enters traveling-grate stoker by rotating charging gear, simultaneously Linkage traveling-grate stoker brings offal into boiler and burns.

In above scheme, in order to control reasonable air required for offal burns, traveling-grate stoker lower part is set there are five air compartment, Need to control air compartment air force according to fuel combustion.

In above scheme, combustion chamber is respectively equipped with the flue gas jet pipe that a row connect with pipe with burner hearth, and offal exists Traveling-grate stoker ignition, uncombusted uprising gas contact mixing with the band oxygen flue gas recycled that flue gas jet pipe sprays, into The secondary full combustion of row is complete, keeps low nitrogen burning abundant, avoids imperfect combustion tar harm, meets the combustion characteristics of offal It is required that while neutralized by the temperature of flue gas recycled, it is ensured that the temperature that burner hearth exiting flue gas enters heat-exchanger rig is closed Reason avoids flue gas from endangering more than offal sublimation temperature.

In above scheme, pulse soot blower is set in the top of convection bank, economizer, to impact thermal energy, sound energy, thermal energy Form releases energy, and while making offal burn is adhered to the relaxation of the dust stratification on heating surface containing alkali metal composition, falls off, to reach To dust stratification purpose is removed, being not easy to plug in promote device improves use effect of convection bank, economizer.

Compared with the prior art, the present apparatus possesses independent combustion chamber and burner hearth, increases the internal-combustion of offal Space increases residence time of the flue gas in combustion chamber and burner hearth to reduce flue gas flow rate, rise flue gas with again Circulating flue gas contact guarantees that oxygen supply is sufficient, keeps burning more abundant, reduce the outlet temperature of burner hearth, avoid combustion chamber Flue-gas temperature is excessively high, and offal ash melts；Thoroughly overcome because burn it is insufficient due to cause tar hold blocking heating surface defect and Ash, which melts, blocks the face phenomenon that is heated, and reduces flue gas nitrogen oxide content.

Due to using heat-exchanger rig and economizer those residual heat using devices, the thermal effect of the present apparatus not only can be improved Rate, it is energy saving, reduce air pollution emission；Meanwhile the stalk ashes that boiler generates then can be used for producing organic potassic fertilizer.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model patent；

In figure, furnace body 1, feed hopper 2, pipe 3, traveling-grate stoker 4, face arch 5, rear arch 6, combustion chamber 7, burner hearth 8；On Drum 9, lower drum 10, convection bank 11, level-one economizer 12, second level economizer 13, pulse soot blower 14 rotate charging gear 15, air compartment 16, ash bucket 17, flue gas jet pipe 18.

Specific embodiment

The utility model is described in further detail with specific embodiment with reference to the accompanying drawing：

As shown in the figure：

A kind of integral type chain-type offal burner, including the furnace body 1 with feed hopper 2 and pipe 3, in furnace body 1 If traveling-grate stoker 4, face arch 5 and rear arch 6, and be formed as triangle combustion chamber 7, it is burner hearth 8 above combustion chamber 7；Burning Room 7 and the two sides of burner hearth 8 are water-cooling wall；8 rear of burner hearth sets heat-exchanger rig, the heat-exchanger rig include upper drum 9, under Drum 10 and the convection bank 11 for connecting upper drum 9, lower drum 10；Heat-exchanger rig rear sets level-one economizer 12 and second level saves Coal device 13；At the gas inlet of convection bank 11 and exit, and in level-one economizer 12 and the flue gas of second level economizer 13 Entrance sets multiple pulse soot blowers 14；1 bottom of furnace body sets ash bucket 17；The rotation to link with traveling-grate stoker 4 is equipped in feed hopper 2 Charging gear 15 sets air compartment 16 below traveling-grate stoker 4；Combustion chamber 7 is respectively equipped with a row with burner hearth 8 and is connected to pipe 3 Flue gas jet pipe 18.

Working principle：

When device is run, it first is laid with offal fuel on 4 top of traveling-grate stoker of combustion chamber 7, is then drawn with straw or firewood Combustion；After offal ignites, start air-introduced machine and air blower, air enters the air compartment 16 of 4 lower part of traveling-grate stoker through air hose, according to fuel Burning needs to control 16 air force of air compartment, and upward air draught is generated on traveling-grate stoker 4 and contacts mixed firinor fuel burning with offal； The flue gas that offal burning generates sprays band oxygen flue gas with the secondary flue gas recycled jet pipe 18 of combustion chamber 7 and burner hearth 8 upwards Contact mixing makes imperfect combustion object in flue gas full combustion again, promotes low nitrogen burning abundant, avoid imperfect combustion Tar harm, after the flue gas after burning sufficiently is exported to burner hearth 8, by convection bank 11, level-one economizer 12 and two After the heat exchange of grade economizer 13, using the waste heat in flue gas, to realize and reduce exhaust emission, resource rational utilization is energy saving, Flue-gas temperature is greatly reduced simultaneously, can be discharged by smoke exhaust pipe.

Device operation a period of time, the operation of pulse soot blower 14 can remove and be adsorbed on convection bank 11, level-one economizer Dust stratification containing alkali metal on the heating surfaces such as 12 and second level economizer 13, falls into the ash bucket of bottom of furnace body, is recycled after collection It utilizes, for producing organic potassic fertilizer.

Device operational process needs to adjust load operation, and offal is by feed hopper 2, in the effect of rotation charging gear 15 Under, 4 top of traveling-grate stoker is entered, by adjusting the speed of traveling-grate stoker 4, control enters the thickness of feed layer of combustion chamber 7 and gives Expect speed, guarantees that its burning is abundant.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (3)

1. a kind of integral type chain-type offal burner, including the furnace body with feed hopper and pipe, which is characterized in that furnace body Traveling-grate stoker, face arch and rear arch are inside set, and is formed as triangle combustion chamber, is burner hearth above combustion chamber；Burner hearth Rear sets heat-exchanger rig, which includes upper drum, lower drum and the convection bank for connecting upper drum, lower drum；It changes Thermal rear sets economizer；Convection bank and economizer periphery set multiple pulse soot blowers；Bottom of furnace body sets ash bucket；Feed hopper It is interior equipped with the rotation charging gear to link with traveling-grate stoker, set air compartment below traveling-grate stoker；Combustion chamber is set respectively with burner hearth The flue gas jet pipe for thering is a row to connect with pipe.

2. a kind of integral type chain-type offal burner according to claim 1, which is characterized in that the economizer packet Economizer containing level-one and second level economizer.

3. a kind of integral type chain-type offal burner according to claim 1, which is characterized in that the impulse soot blowing Device is mainly disposed at the gas inlet of convection bank and exit, and is arranged at the gas inlet of economizer.