CN213901114U

CN213901114U - Waste incineration high-temperature flue gas recycling system

Info

Publication number: CN213901114U
Application number: CN202022600002.8U
Authority: CN
Inventors: 陈秋松
Original assignee: Chongqing Qiusong Environmental Protection Technology Co ltd
Current assignee: Chongqing Qiusong Environmental Protection Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-08-06
Anticipated expiration: 2030-11-10

Abstract

The utility model relates to a msw incineration high temperature flue gas cyclic utilization system, including burning device, heat transfer device, drying device and tail gas processing apparatus, heat transfer device's main air inlet with burn the gas vent switch-on of device, drying device's main air inlet with heat transfer device's main gas outlet switch-on, tail gas processing apparatus's main air inlet with drying device's main gas outlet switch-on, wherein: the auxiliary air inlet of the heat exchanger is also communicated with an air supply pipeline, the auxiliary air inlet of the drying device is communicated with the auxiliary air outlet of the heat exchange device, and the auxiliary air outlet of the drying device is communicated with the air inlet of the incineration device. The effect is as follows: the heat of the high-temperature flue gas can be recycled, so that the energy consumption of the whole system is reduced, and meanwhile, the flue gas is cooled to be beneficial for a tail gas treatment device to fully dissolve sulfur-containing oxides, so that the harmless conversion rate is high, and the discharged tail gas can reach the environmental protection standard.

Description

Waste incineration high-temperature flue gas recycling system

Technical Field

The utility model relates to a domestic waste handles the field, concretely relates to waste incineration high temperature flue gas cyclic utilization system.

Background

Because the existing capacity is excessive, the recovery cost of the waste products in life is too high, people do not want to recover the waste products, and the waste products become visible garbage everywhere. At present, the conventional garbage disposal means is landfill, for landfill, the occupied area of the landfill garbage in each city reaches tens of acres every day, and as the land is less and less, the landfill garbage becomes an urgent need replacing mode, so that the garbage incineration disposal means appears, although a large amount of toxic and harmful gases can be generated in the garbage incineration process, the pollution can be obviously reduced through the tail gas treatment in the later period.

At present, the waste incineration process is complex, the treatment efficiency is low, the heat energy of high-temperature flue gas cannot be fully utilized, and the discharged tail gas cannot reach the environmental protection standard.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a waste incineration high temperature flue gas cyclic utilization system can the heat of cyclic utilization high temperature flue gas to reduce entire system's energy consumption, be favorable to the tail gas processing apparatus to fully dissolve its sulfur oxide simultaneously behind the flue gas cooling, consequently innoxious conversion rate is high, and the tail gas of emission can reach the environmental protection standard.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a waste incineration high temperature flue gas cyclic utilization system, its key lies in, including burning device, heat transfer device, drying device and tail gas processing apparatus, heat transfer device's main air inlet with burn the gas vent switch-on of device, drying device's main air inlet with heat transfer device's main gas outlet switch-on, tail gas processing apparatus's main air inlet with drying device's main gas outlet switch-on, wherein: the auxiliary air inlet of the heat exchange device is also communicated with an air supply pipeline, the auxiliary air inlet of the drying device is communicated with the auxiliary air outlet of the heat exchange device, and the auxiliary air outlet of the drying device is communicated with the air inlet of the incineration device.

Furthermore, a shunting pipeline is communicated with a connecting pipeline of the drying device and the incineration device, and an air outlet end of the shunting pipeline is communicated with an auxiliary air inlet of the tail gas treatment device.

Further, the gas flow in the shunt line is controlled by a suction pump.

Furthermore, the drying device comprises a mounting rack, a front end enclosure and a rear end enclosure which are symmetrically arranged on the mounting rack, a hot flue gas circulation chamber arranged between the front end enclosure and the rear end enclosure, and a rotating drum sleeved in the hot flue gas circulation chamber, wherein two ends of the rotating drum are respectively sleeved on the front end enclosure and the rear end enclosure, and the drying device comprises: and the front end enclosure and the rear end enclosure are respectively provided with an auxiliary air inlet and an auxiliary air outlet of the drying device, and the two ends of the hot flue gas circulation chamber are respectively provided with a main air inlet and a main air outlet of the drying device.

Furthermore, the rotary drum is fixedly sleeved with at least two lantern rings, each lantern ring is supported on the mounting frame through the riding wheel assembly, a gear ring is further arranged close to the lantern ring, and the gear ring is driven by the first speed reduction motor.

Furthermore, the front end enclosure and the rear end enclosure are respectively provided with a garbage feeding port and a garbage discharging port, the rotary drum is internally provided with a helical blade, two ends of the helical blade respectively extend to the garbage feeding port and the garbage discharging port, and the helical blade is driven by a second speed reduction motor arranged on the front end enclosure.

Further, the inner side wall of the drum is provided with a scraper.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a to the rational arrangement of high temperature flue gas conveying pipeline and new trend circulation pipeline for the heat of high temperature flue gas can be by make full use of, thereby reduces entire system's energy consumption, is favorable to the tail gas processing apparatus to effectively dissolve its sulfur oxide after the flue gas cooling simultaneously, and consequently innoxious conversion rate is high, and the tail gas of emission can reach the environmental standard.

Drawings

FIG. 1 is a main structure view of the present invention;

fig. 2 is a schematic structural diagram of the drying device of the present invention.

Wherein: 1-an incineration device, 2-a heat exchange device, 3-a drying device, 4-a tail gas treatment device, 5-an air supply pipeline, 6-a shunt pipeline, 7-a suction pump, 301-a mounting rack, 302-a front end enclosure, 303-a rear end enclosure, 304-a hot flue gas circulation chamber, 305-a rotary drum, 306-a lantern ring, 307-a riding wheel assembly, 308-a toothed ring, 309-a first speed reducing motor, 310-a helical blade, 311-a second speed reducing motor and 312-a scraper.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1, the utility model discloses a waste incineration high temperature flue gas cyclic utilization system, a serial communication port, including burning device 1, heat transfer device 2, drying device 3 and tail gas processing apparatus 4, heat transfer device 2's main air inlet with burn the gas vent switch-on of device 1, drying device 3's main air inlet with heat transfer device 2's main gas outlet switch-on, tail gas processing apparatus 4's main air inlet with drying device 3's main gas outlet switch-on, wherein: the auxiliary air inlet of the heat exchange device 2 is also communicated with an air supply pipeline 5, the auxiliary air inlet of the drying device 3 is communicated with the auxiliary air outlet of the heat exchange device 2, and the auxiliary air outlet of the drying device 3 is communicated with the air inlet of the incineration device 1.

In the embodiment, the high-temperature flue gas discharged by the incineration device 1 firstly enters the heat exchange device 2, cold air sent by the air supply pipeline 5 is heated in a conduction mode, the flue gas after heat exchange is conveyed to the drying device 3 again, waste in the drying device 3 is heated in a conduction mode, and finally the flue gas with exhausted waste heat enters the tail gas treatment device 4 and is discharged into the atmosphere after being treated by the tail gas treatment device 4; on the other hand, hot air after heat exchange with the high-temperature flue gas enters the drying device 3 and directly contacts with the garbage, so that convection heating of the garbage is achieved, after the garbage is heated, the hot air only contains a small amount of components in the garbage, so that combustion supporting can be carried out in the incineration device 1, and the harmful components contained in the hot air are subjected to pyrolysis gasification treatment while the combustion supporting is carried out.

In order to prevent excessive air from being sent into the incineration device 1 and to take a proper reaction to the waste incineration, a shunt pipeline 6 is further communicated with a connecting pipeline of the drying device 3 and the incineration device 1, and an air outlet end of the shunt pipeline 6 is communicated with an auxiliary air inlet of the tail gas treatment device 4. Preferably, the gas flow in the shunt line 6 is controlled by a suction pump 7.

As shown in fig. 2, specifically, the drying device 3 includes a mounting frame 301, a front seal head 302 and a rear seal head 303 symmetrically disposed on the mounting frame 301, a hot flue gas flowing chamber 304 disposed between the front seal head 302 and the rear seal head 303, and a rotating drum 305 sleeved in the hot flue gas flowing chamber 304, two ends of the rotating drum 305 are respectively sleeved on the front seal head 302 and the rear seal head 303, wherein: an auxiliary air inlet and an auxiliary air outlet of the drying device 3 are respectively arranged on the front seal head 302 and the rear seal head 303, and a main air inlet and a main air outlet of the drying device 3 are respectively arranged at two ends of the hot flue gas circulation chamber 304.

Specifically, the rotating cylinder 305 is fixedly sleeved with at least two collars 306, each collar 306 is supported on the mounting frame 301 through a idler wheel assembly 307, and a gear ring 308 is further arranged near the collar 306, and the gear ring 308 is driven by a first speed reduction motor 309.

Specifically, the front end enclosure 302 and the rear end enclosure 303 are further provided with a garbage feeding port and a garbage discharging port respectively, the rotating cylinder 305 is internally provided with a helical blade 310, two ends of the helical blade 310 extend to the garbage feeding port and the garbage discharging port respectively, and the helical blade 310 is driven by a second speed reduction motor 311 installed on the front end enclosure 302.

Specifically, the inner side wall of the drum 305 is provided with a scraper 312.

In this embodiment, the first speed reduction motor 309 and the second speed reduction motor 311 are started, the high-temperature flue gas enters the hot flue gas circulation chamber 304 through the main air inlet of the drying device 3, so as to conductively dry the garbage in the drum 305, and simultaneously, the hot air generated after heat exchange directly enters the rotating shaft through the auxiliary air inlet of the drying device 3, so as to convectively heat the garbage. On the other hand, the garbage is lifted by the scraper in the rotating drum 305 along with the rotation of the rotating drum 305 under the combined action of the first speed reduction motor 309 and the second speed reduction motor, so that the garbage is heated more uniformly while moving to the garbage discharging opening.

To sum up, the utility model discloses a to the rational arrangement of high temperature flue gas conveying pipeline and new trend circulation pipeline for the heat of high temperature flue gas can be by make full use of, thereby reduces entire system's energy consumption, is favorable to tail gas processing apparatus 4 to effectively dissolve its sulfur oxide after the flue gas cooling simultaneously, and consequently innoxious conversion rate is high, and the tail gas of emission can reach the environmental protection standard.

Finally, it should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention shall also belong to the protection scope of the present invention.

Claims

1. The utility model provides a waste incineration high temperature flue gas cyclic utilization system, its characterized in that, including burning device, heat transfer device, drying device and tail gas processing apparatus, heat transfer device's main air inlet with burn the gas vent switch-on of device, drying device's main air inlet with heat transfer device's main gas outlet switch-on, tail gas processing apparatus's main air inlet with drying device's main gas outlet switch-on, wherein: the auxiliary air inlet of the heat exchange device is also communicated with an air supply pipeline, the auxiliary air inlet of the drying device is communicated with the auxiliary air outlet of the heat exchange device, and the auxiliary air outlet of the drying device is communicated with the air inlet of the incineration device.

2. The waste incineration high-temperature flue gas recycling system according to claim 1, wherein a bypass pipeline is further communicated with a connecting pipeline between the drying device and the incineration device, and an air outlet end of the bypass pipeline is communicated with an auxiliary air inlet of the tail gas treatment device.

3. The waste incineration high-temperature flue gas recycling system according to claim 2, wherein the gas flow in the diversion pipeline is controlled by a suction pump.

4. The waste incineration high-temperature flue gas recycling system according to claim 2 or 3, wherein the drying device comprises a mounting frame, a front end enclosure and a rear end enclosure symmetrically arranged on the mounting frame, a hot flue gas circulation chamber arranged between the front end enclosure and the rear end enclosure, and a rotating drum sleeved in the hot flue gas circulation chamber, two ends of the rotating drum are respectively sleeved on the front end enclosure and the rear end enclosure, wherein: and the front end enclosure and the rear end enclosure are respectively provided with an auxiliary air inlet and an auxiliary air outlet of the drying device, and the two ends of the hot flue gas circulation chamber are respectively provided with a main air inlet and a main air outlet of the drying device.

5. The waste incineration high-temperature flue gas recycling system according to claim 4, wherein the rotating drum is fixedly sleeved with at least two sleeves, each sleeve is supported on the mounting frame through a carrier roller assembly, and a toothed ring is further arranged close to the sleeve and driven by a first speed reduction motor.

6. The waste incineration high-temperature flue gas recycling system according to claim 5, wherein the front end enclosure and the rear end enclosure are further provided with a waste feeding port and a waste discharging port respectively, the rotary drum is internally provided with a helical blade, two ends of the helical blade extend to the waste feeding port and the waste discharging port respectively, and the helical blade is driven by a second speed reduction motor mounted on the front end enclosure or the rear end enclosure.

7. The waste incineration high-temperature flue gas recycling system according to claim 5 or 6, wherein a scraper is arranged on the inner side wall of the rotating drum.