CN2381894Y

CN2381894Y - Rotary combined firing kiln

Info

Publication number: CN2381894Y
Application number: CN 99228971
Authority: CN
Inventors: 王煦
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-23
Filing date: 1999-07-23
Publication date: 2000-06-07
Anticipated expiration: 2009-07-23

Abstract

The utility model designs a rotary combined firing kiln, which is composed of the match and the assembly of a rotary kiln supported by a supporting wheel and a vertical stove, wherein, the bottom of the vertical stove is provided with a conical rotary wind grate. The rotary kiln part can complete the prewarming, the drying and the pyrolysis of firing objects; the vertical stove part can compele the calcination and deslagging. The rotary kiln part and the vertical stove part exert the respective advantages, forming a unified firing system. The connecting point of the kiln and the stove is provided with an oil injection mechanism, causing that the discharge of the gas the kiln passes the high temperature environment with 1200 DEG C; the gas can be convied to a waste heat boiler for power generation after the coarse dust is removed by a cyclone separator.

Description

Turn round combined incinerating kiln

The utility model relates to a kind of consumer waste incineration device, the combined incinerating kiln of specifically a kind of revolution.

Along with various countries' economy constantly develops, the continuous growth of urban population, house refuse discharge capacity cumulative year after year has constituted big public hazards of environmental pollution.At present the house refuse discharge capacity in coastal cities per capita every day about 0.7-1.2 kilogram.To house refuse carry out innoxious, subtract the appearanceization processing and take the burning means, progressively think one of main path of Future Development.Present domestic incineration plant of having built, not only cost is big to adopt import equipment, the operating cost height, and and be not suitable for calcining China without the house refuse that sorts.Therefore no matter from economically, all be difficult to generally promote in the practicality.

The external at present revolution incinerating kiln that adopts all is furnished with secondary combustion chamber.The main effect of secondary combustion chamber is that temperature is risen to 1200 ℃, and its thermal source excites incinerated matter from depositing energy for rotary kiln on the one hand, clears up the harmful components in the flue gas simultaneously.Therefore rotary kiln is in oxygen debt roasting, has born whole firing process of incinerated matter, and it is very low to burn till efficient.In case will realize maximizing, the huge investment of equipment is high.

The purpose of this utility model then is the problem that exists at above-mentioned prior art, has designed a kind of combined incinerating kiln of being made up of rotary kiln and vertical heater of revolution.Rotary kiln is partly finished preheating, oven dry, the pyrolysis of incinerated matter, and vertical heater is partly finished roasting, deslagging.Both respectively make it long, constitute a unified firing system.The kiln place of joining is provided with oil spout mechanism, delivers to the waste heat boiler generating after making the discharging of kiln gas remove coarse dust through 1200 ℃ of hot environments and by cyclone separator.

The purpose of this utility model can reach by following measure:

The combined incinerating kiln of a kind of revolution is characterized in that rotary kiln that it is supported by support roller and bottom are provided with the pyramid type vertical heater coupling that wind combs of circling round and combine.

The concrete technical solution of the utility model is: the rotary kiln lower edge is connected with vertical heater at above 3.5 meters, pyramid type revolution wind comb top.

Advantage of the present utility model:

The utility model is amplified design at the very ripe calcining technology of building material industry, then changes dual firing chamber into vertical heater.Incinerated matter is only born preheating, oven dry, pyrolysis in rotary kiln, insufficiently burnt part is burnt to the greatest extent by grilling thoroughly in the vertical heater.Therefore burning process is finished jointly by rotary kiln, vertical heater, significantly alleviated the burden of burning till of rotary kiln.Incinerated matter seethes propelling in incinerator, this preheating to material, drying efficiency are higher, and vertical heater is finished firing process at last, and this makes both respectively raise advantage, makes calcining system more become reasonable.And the vertical heater epicoele still is 1200 ℃, does not lose the effect of former dual firing chamber.Simultaneously connect cyclone separator behind vertical heater, this not only alleviates the burden of gathering dust of later process, and flue gas journey time in 1200 ℃ of hot environments can be reached more than 2.6 seconds, thoroughly eliminates the harm of dioxin.Moreover the vertical heater bottom is provided with circular cone revolution wind and combs, and it is distinguished and admirable to charge into high pressure, burns wind regime as vertical heater, cools off slag charge simultaneously.Because kiln, furnace accretion close, heat exchange is reasonable, and technical process is perfect, so device efficiency is improved, and provides the foundation for production capacity maximizes.No matter this kiln all can realize production domesticization from material and manufacturing equipment, and the equipment maturation is reliable, and waste heat is fully used, and slag charge can supply construction material making burn-free bricks or fragment of brick, is fully utilized.This kiln unit ability can form 100 ton per days, 200 ton per days, 300 ton per days, 400 ton per days, 500 ton per day series, selects for the incineration plant of different scales.

Fig. 1 is the utility model structural representation.

Below in conjunction with accompanying drawing the utility model is further described:

Incinerated matter enters rotary kiln 2 after being discharged into lock fan blade dispenser 1, the cylindrical shell that the kiln body is rolled into for the 20-28m/m steel plate, its length and diameter be by different production capacity and difference, studs with heat insulation, heatproof, wear-resisting, antiseized, ventilation kiln lining 3 in the cylindrical shell, and the kiln body is by two groups of support roller support wheel bands 4,5.The rotation of kiln turns round it at a slow speed by drive unit 6, and the two ends of kiln are respectively equipped with sealing device 7,8.After incinerated matter enters the A place by the kiln tail,, be in 400-850 ℃ operating mode along with having certain inclination angle, rotating kiln body at a slow speed, be and seethe shape and advance to kiln hood B, be discharged into vertical heater 9, incinerated matter after preheating, oven dry, pyrolysis, burns thoroughly to slag charge in vertical heater in rotary kiln.The vertical heater bottom is provided with the pyramid type wind that circles round and combs 10, and high pressure is distinguished and admirable to be entered wind by import 11 and comb, and the slag charge of distinguished and admirable elder generation after burning till makes its cooling, and its heat flows to air feed in the vertical heater with the wind.Along with the horizontal microrunning that the wind that circles round is combed, slag charge is expelled to floss hole 12 by edge jaw mouth, enters comprehensive utilization workshop section by airtight jigging conveyer to slag charge storehouse.Pyramid type circles round wind comb 10 by transmission mechanism 13 drivings.

The C of kiln intersection is provided with fueling injection equipment 14 makes vertical furnace chamber temperature reach 1200 ℃, and high-temperature flue gas flows into cyclone separator 15 by the D place, and crude particle dust is incorporated the slag charge induction system into by cyclone separator bottom discharge device 16.High-temperature flue gas after rough segmentation enters waste heat boiler for renewable source of energy generation by cyclone separator top suction pipe 17.The high-temperature flue gas on vertical heater top is provided with bypass warm-air pipe 18 simultaneously to the secondary wind regime of kiln tail E place as rotary kiln, also is provided with auxiliary fuel injector device 19 herein and uses for igniting and adjusting firing temperature.

Claims

1, the combined incinerating kiln of a kind of revolution is characterized in that rotary kiln that it is supported by support roller and bottom are provided with the pyramid type vertical heater coupling that wind combs of circling round and combine.

2, the combined incinerating kiln of revolution according to claim 1 is characterized in that the rotary kiln lower edge is connected with vertical heater at above 3.5 meters, pyramid type revolution wind comb top.

3, the combined incinerating kiln of revolution according to claim 1 is characterized in that vertical heater top is provided with the bypass warm-air pipe to rotary kiln tail E place, also is provided with the auxiliary fuel injector device simultaneously herein.