CN219318444U - Turbulent flow structure for secondary combustion chamber of incinerator - Google Patents

Abstract

The utility model discloses a turbulent flow structure for a secondary combustion chamber of an incinerator, wherein a heat preservation shell is arranged on a base, a secondary combustion chamber pipe is arranged in the heat preservation shell, the bottom end of the secondary combustion chamber pipe is connected with a turbulent flow assembly, and an emergency discharge flue is arranged at the top end of the secondary combustion chamber pipe. Through setting up vortex subassembly in two combustion chamber pipe junction, make the installation air supply pipe on the air supply pipe of vortex on the vortex wind communicating pipe on the vortex subassembly, make the vortex wind gas get into the air supply passageway from the intake pipe, and the air supply pipe blowout of air supply passageway connection, make the air current be the angle blowout, form helical air current in two combustion chambers of combustion furnace, make the flue gas fully burn in two combustion chambers, and make the air current rise to the top after, make the air current that rises along combustion chamber wall under will, with helical ascending air current again intensive mixing, increase the flue gas dwell time of incinerator two combustion chambers, improve the combustion efficiency of flue gas, reduce and reduce the production of dioxin.

Description

Turbulent flow structure for secondary combustion chamber of incinerator

Technical Field

The utility model relates to the technical field of incinerators, in particular to a turbulent flow structure for a secondary combustion chamber of an incinerator.

Background

Over the last decades, improper disposal of hazardous waste has successively triggered some serious hazards, with long-lasting and difficult to thoroughly eliminate pollution times. Therefore, it is necessary to distinguish hazardous waste having high hazard from other waste having a large amount but less hazard according to the degree of hazard of the waste and treat it in different disposal manners. Hazardous waste constitutes a serious hazard to the global environment and human health, and their harmfulness is often long-term, potential. Therefore, relevant laws and regulations are formulated in China, the directory of dangerous wastes is determined, and waste identification standards and identification methods and corresponding treatment methods are provided. Among them, hazardous wastes such as medical wastes, wood preservative wastes, organic solvent wastes, dye wastes, paint wastes, etc., currently belong to the category that can be disposed of by incineration. The dangerous waste is collected and transported in a centralized way through a special container and a vehicle, is subjected to pretreatment and is subjected to incineration treatment by adopting a rotary kiln type incinerator, and the flue gas generated by incineration is subjected to treatment and then is discharged after reaching the standard. In which, harmful substances dioxin are easy to be produced in the burning process, how to effectively remove or reduce the production of dioxin in the burning process is a difficult point in the burning process at present, and no means for reasonably and effectively reducing the production of dioxin in the burning process is available at present.

The turbulence structure of the secondary combustion chamber of the incinerator (China, publication No. CN210662870U, publication No. 2020, no. 6 and 2) can increase the residence time of the flue gas by increasing turbulence, increase the turbulence degree in the combustion process and effectively control the excessive air quantity, thereby reducing the generation of dioxin substances.

In the above patent, the air supply pipe on the turbulence structure of the secondary combustion chamber of the incinerator is directly fixed on the turbulence air pipe, so that the air supply pipe cannot timely perform angle adjustment according to the flow of the smoke in the secondary combustion chamber of the incinerator, the turbulence efficiency of the secondary combustion chamber of the incinerator is adjusted, the residence time of smoke is increased, the smoke enters the secondary combustion chamber to be fully combusted, and harmful gases such as dioxin are effectively removed and reduced.

Disclosure of Invention

In view of the above-described drawbacks or shortcomings of the prior art, it is desirable to provide a turbulence structure for a secondary combustion chamber of an incinerator, which prolongs the residence time of the flue gas stream in the secondary combustion chamber of the incinerator, improves the combustion efficiency of the flue gas, and reduces the production of dioxins.

According to the technical scheme that this application embodiment provided, a vortex structure for burning two combustion chambers of stove, including base and heat preservation shell, the heat preservation shell is installed on the base, just install two combustion chamber pipes in the heat preservation shell, two combustion chamber pipe bottom are connected with vortex subassembly, two combustion chamber pipe top are installed urgent emission flue, just two combustion chamber pipe rear end are installed the gas pipe, just two combustion chamber pipes are connected with the exhaust pipe.

In the utility model, the top end of the inside of the two combustion chamber pipes is provided with the spoiler which is in an inverted cone structure.

In the utility model, the turbulent flow component comprises a turbulent flow wind communicating pipe, an air supply pipe and an adjusting mechanism, wherein the adjusting mechanism is arranged on the turbulent flow wind communicating pipe, the turbulent flow wind communicating pipe is provided with a mounting groove, the air supply pipe is arranged on the mounting groove, and the air supply pipe is connected with the adjusting mechanism.

In the utility model, the adjusting mechanism comprises an adjusting motor, a gear A, a gear B and a connecting rod, wherein the connecting rod is arranged on the air supply pipe, the gear B is arranged on the connecting rod and meshed with the gear A, and the gear A is connected with the adjusting motor.

In the utility model, the turbulent air communicating pipe is provided with an air supply channel, the air supply channel is connected with the air inlet pipe, the mounting groove is also provided with a movable plate, and the movable plate is connected with the air supply pipe.

In the utility model, the adjusting mechanism and the air supply pipe are annularly arranged on the turbulent flow communicating pipe.

To sum up, the beneficial effects of this application:

1. the turbulent flow assembly and the turbulent flow plate are arranged at the joint of the two combustion chamber pipes, so that a wind supply pipe is arranged on a mounting groove on a turbulent flow wind communicating pipe on the turbulent flow assembly, turbulent flow wind gas enters a wind supply channel from a wind inlet pipe and is sprayed out from the wind supply pipe connected with the wind supply channel, so that the gas flow is sprayed out in an angle, a spiral gas flow is formed in the two combustion chambers of the combustion furnace, the gas flow is fully combusted in the two combustion chambers, and after the gas flow rises to the top end, the rising gas flow is fully mixed with the spiral rising gas flow again along the lower part of the wall of the combustion chamber by the inverted cone-shaped turbulent flow plate, the smoke residence time of the two combustion chambers of the combustion furnace is increased, the combustion efficiency of the smoke is improved, and the generation of dioxin is reduced;

2. the adjusting mechanism is arranged in the mounting groove on the turbulent air communicating pipe, so that after the adjusting motor on the adjusting mechanism is started, the gear A connected with the adjusting motor is driven to rotate, the gear B meshed with the gear A is enabled to rotate, the connecting rod provided with the gear B is rotated, the air supply pipe connected with the connecting rod is rotated to adjust the air supply angle of turbulent air, the turbulent structure of the incinerator secondary combustion chamber is enabled to conduct angle adjustment according to the entering smoke flow, the smoke combustion efficiency of the incinerator secondary combustion chamber is improved, and the generation of dioxin is reduced and reduced.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

FIG. 1 is a schematic diagram of the overall front view of the present utility model;

FIG. 2 is a schematic diagram of the overall rear view structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is a schematic view of the internal structure of a secondary combustion chamber according to the present utility model;

FIG. 5 is a schematic view of a spoiler assembly according to the present utility model;

FIG. 6 is a schematic view of the connection structure of the air supply pipe and the adjusting mechanism of the utility model.

Reference numerals in the drawings: the device comprises a base-1, a heat-insulating shell-2, a secondary combustion chamber pipe-3, an emergency discharge flue-4, a smoke exhaust pipe-5, a combustion pipe-6, a turbulence component-7, an air supply channel-7.1, an air inlet pipe-7.2, an air supply pipe-7.3, a movable plate-7.4, an adjusting motor-7.5, a gear A-7.6, a gear B-7.7, a connecting rod-7.8 and a turbulence plate-8.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, fig. 2 and fig. 3, in a turbulent flow structure for a secondary combustion chamber of an incinerator, in the process of incinerating domestic garbage and municipal sludge by the incinerator, the domestic garbage and municipal sludge enter a rotary kiln of the incinerator through a feed hopper to be combusted, high-temperature flue gas generated after combustion enters a secondary combustion chamber pipe 3 from a 1 base connected with the tail end of the rotary kiln, turbulent flow wind provided by a turbulent flow component 7 arranged at the joint of the secondary combustion chamber pipe 3 is used for mixing, rising and combusting the high-temperature flue gas in the secondary combustion chamber pipe 3 in a spiral manner in the secondary combustion chamber, so that the combustion efficiency of the flue gas in the secondary combustion chamber of the incinerator is improved, the generation of dioxin is reduced and simultaneously, a heat preservation shell 2 is arranged outside the secondary combustion chamber pipe 3 to prevent the loss of the temperature of the high-temperature flue gas in the combustion process, and an emergency discharge flue 4 is arranged at the top end of the secondary combustion chamber pipe 3 to enable the emergency discharge flue to discharge the air pressure in the secondary combustion chamber pipe 3 in time, so that the combustion efficiency of the secondary combustion chamber of the incinerator is improved; and the gas pipe 6 is installed to two combustion chamber pipe 3 rear ends, provides the combustion air current for two combustion chambers, and two combustion chamber pipe 3 are connected with exhaust pipe 5, discharge the flue gas after fully burning from exhaust pipe 5, improve the combustion efficiency of two combustion chambers of incinerator.

As shown in fig. 4, 5 and 6, in the process of fully burning high-temperature flue gas in the secondary combustion chamber of the incinerator, an adjusting mechanism on a turbulent flow component 7 is arranged on a turbulent flow air communicating pipe, an installing groove is arranged on the turbulent flow air communicating pipe, an air supply pipe 7.3 is arranged on the installing groove, the air supply pipe 7.3 is connected with the adjusting mechanism, an air supply channel 7.1 is arranged on the turbulent flow air communicating pipe, the air supply channel 7.1 is connected with an air supply pipe 7.2, a movable plate 7.4 is also arranged on the installing groove, the movable plate 7.4 is connected with the air supply pipe 7.3, a turbulent flow plate 8 is arranged at the top end in the secondary combustion chamber pipe 3, and the turbulent flow plate 8 is in an inverted cone structure; through setting up vortex subassembly 7 in two combustion chamber pipe 3 junction, make the installation air supply pipe 7.3 on the mounting groove on the vortex wind communicating pipe on the vortex subassembly 7, make vortex wind gas get into air supply passageway 7.1 from air-supply pipe 7.2, and the air supply pipe 7.3 blowout of being connected from air supply passageway 7.1, make the air current be the angle blowout, form spiral air current in two combustion chambers of combustion furnace, make the flue gas fully burn in two combustion chambers, and make the air current rise to the top after, make the air current that rises will along the combustion chamber wall under, fully mix again with spiral ascending air current, increase the flue gas dwell time of incinerator two combustion chambers, improve the combustion efficiency of flue gas, reduce and reduce the production of dioxin.

As shown in fig. 5 and 6, in the process of fully burning high-temperature flue gas in the secondary combustion chamber of the incinerator, a connecting rod 7.8 on the adjusting mechanism is arranged on a wind supply pipe 7.3, a gear B7.7 is arranged on the connecting rod 7.8, the gear B7.7 is meshed with a gear A7.6, the gear A7.6 is connected with an adjusting motor 7.5, and the adjusting mechanism and the wind supply pipe 7.3 are annularly arranged on a turbulent wind communicating pipe; through installing adjustment mechanism in the mounting groove on vortex wind communicating pipe, make adjustment motor 7.5 on the adjustment mechanism start the back, drive gear A7.6 rotation that adjustment motor 7.5 connected, make with gear A7.6 meshing gear B7.7 rotatory, and install gear B7.7's connecting rod 7.8 rotatory, the air supply pipe 7.3 rotatory angle regulation of connecting rod 7.8 connection, adjust the air supply angle of vortex wind, make the vortex structure of incinerator second combustion chamber carry out angle modulation according to the flue gas flow who gets into, improve the flue gas combustion efficiency of incinerator second combustion chamber, reduce and reduce the production of dioxin.

The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. Meanwhile, the scope of the utility model referred to in this application is not limited to the technical solutions of the specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or their equivalents without departing from the inventive concept. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims (5)

1. A vortex structure for burning two combustion chambers of an incinerator comprises a base (1) and a heat preservation shell (2), and is characterized in that: the heat preservation shell (2) is installed on the base (1), and install two combustion chamber pipes (3) in the heat preservation shell (2), two combustion chamber pipe (3) bottom are connected with vortex subassembly (7), urgent emission flue (4) are installed on two combustion chamber pipe (3) top, just two combustion chamber pipe (3) rear end are installed gas pipe (6), two combustion chamber pipe (3) are connected with exhaust pipe (5).

2. The turbulence structure for a secondary combustion chamber of an incinerator according to claim 1, characterized in that: the top end of the interior of the secondary combustion chamber pipe (3) is provided with a spoiler (8), and the spoiler (8) is of an inverted cone structure.

3. The turbulence structure for a secondary combustion chamber of an incinerator according to claim 1, characterized in that: the turbulent flow assembly (7) comprises a turbulent flow wind communicating pipe, a wind supply pipe (7.3) and an adjusting mechanism, wherein the adjusting mechanism is arranged on the turbulent flow wind communicating pipe, a mounting groove is formed in the turbulent flow wind communicating pipe, the wind supply pipe (7.3) is arranged on the mounting groove, and the wind supply pipe (7.3) is connected with the adjusting mechanism.

4. A turbulence structure for a secondary combustion chamber of an incinerator according to claim 3, characterized in that: the adjusting mechanism comprises an adjusting motor (7.5), a gear A (7.6), a gear B (7.7) and a connecting rod (7.8), wherein the connecting rod (7.8) is arranged on the air supply pipe (7.3), the gear B (7.7) is arranged on the connecting rod (7.8), the gear B (7.7) is meshed with the gear A (7.6), and the gear A (7.6) is connected with the adjusting motor (7.5).

5. A turbulence structure for a secondary combustion chamber of an incinerator according to claim 3, characterized in that: the turbulent air communicating pipe is provided with an air supply channel (7.1), the air supply channel (7.1) is connected with an air inlet pipe (7.2), the mounting groove is also provided with a movable plate (7.4), and the movable plate (7.4) is connected with the air supply pipe (7.3).

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