A waste incinerator step air modification device

Abstract

The utility model discloses a kind of garbage incinerator ladder air transformation device, including boiler primary air main pipeline, wind pipe is connected on boiler primary air main pipeline, turbine butterfly valve is provided in the middle part of wind pipe, stainless steel pipe is provided in the end of wind pipe, and stainless steel pipe extends into incinerator hearth, and spray head is provided on stainless steel pipe.The utility model branchs out new wind pipe on boiler primary air main pipeline, and sets up multiple stainless steel pipes and spray head at furnace grate step, so that air can be evenly distributed to garbage, ensure that garbage can obtain sufficient oxygen supply in each part, so as to improve combustion efficiency.

Description

Technical Field

[0001] This utility model relates to an air supply duct, and more particularly to a stepped air modification device for a waste incinerator, belonging to the field of waste incineration technology. Background Technology

[0002] Waste incineration, as an effective waste treatment method, has been widely used globally due to its ability to reduce, render harmless, and recycle waste. Waste incinerators convert waste into ash, gas, and heat energy through high-temperature combustion, not only reducing the volume and weight of waste but also enabling resource reuse through waste heat recovery and power generation. Existing waste incinerators are typically equipped with a primary air system to provide the air needed for combustion; however, traditional air supply systems are insufficient in terms of uniform waste distribution and drying effectiveness, leading to incomplete combustion and increased pollutant emissions. To achieve low-carbon combustion processes and improve combustion efficiency while reducing pollutant emissions, existing air supply systems need to be optimized to better meet the demands of waste incineration. This will maximize the utilization of waste fuel energy and significantly improve the overall thermal efficiency of the boiler. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a stepped air modification device for a waste incinerator. By branching a new air supply pipe from the existing primary air main pipe and setting nozzles at the grate steps, the device achieves uniform distribution and rapid drying of waste, improves the drying method, compensates for the lack of oxygen in the initial zone, thereby improving combustion efficiency and reducing pollutant emissions.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows: A waste incinerator stepped air retrofit device includes a boiler primary air main duct, an air pipe connected to the boiler primary air main duct, a turbine butterfly valve installed in the middle of the air pipe, a stainless steel pipe installed at the end of the air pipe, the stainless steel pipe extending into the furnace of the incinerator, and a nozzle installed on the stainless steel pipe.

[0005] There are two air ducts, which are respectively installed on both sides of the outer wall of the incinerator furnace.

[0006] Each duct is connected to two stainless steel pipes at its end, and the two stainless steel pipes are arranged in a parallel manner, one above the other.

[0007] The stainless steel pipe is equipped with seven nozzles spaced apart.

[0008] The stainless steel pipe is located at the grate steps inside the incinerator furnace.

[0009] The positive and beneficial effects of this utility model are: 1. This utility model branches off a new air duct from the main primary air duct of the boiler and installs multiple stainless steel pipes and nozzles at the grate steps, so that the air has a certain power and temperature, and can be evenly distributed to the waste, thereby improving the drying method and process, shortening the drying time, ensuring that the waste can obtain sufficient oxygen supply in all parts, and thus improving the combustion efficiency.

[0010] 2. This utility model, through the spaced nozzles on the stainless steel pipe, can evenly distribute air into the waste in a spray manner, accelerating the evaporation of moisture on the surface and inside of the waste, making the waste easier to ignite before entering the combustion stage. This can be achieved even in the case of complex waste composition, reducing the problem of incomplete combustion caused by wet waste and reducing the amount of incomplete combustion in the ash discharge. It also makes the waste burn more completely in the furnace, thereby reducing the emission of harmful gases (such as carbon monoxide, dioxins, etc.) and particulate matter caused by incomplete combustion, reducing environmental pollution, and improving the overall combustion efficiency of the incinerator. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a distribution diagram of the nozzle of this utility model; Among them: 1-Boiler primary air main duct, 2-Air duct, 3-Turbine butterfly valve, 4-Stainless steel pipe, 5-Nozzle, 6-Incinerator furnace, 7-Insulation layer. Detailed Implementation

[0012] The present invention will be further explained and described below with reference to the accompanying drawings: See the example. Figures 1-2 A waste incinerator stepped air modification device includes a boiler primary air main pipe 1, an air pipe 2 connected to the boiler primary air main pipe 1, a turbine butterfly valve 3 installed in the middle of the air pipe 2, a stainless steel pipe 4 installed at the end of the air pipe 2, and the stainless steel pipe 4 extends into the furnace chamber (6) of the incinerator, and a nozzle 5 is installed on the stainless steel pipe 4.

[0013] There are two air ducts 2, which are respectively installed on both sides of the outer wall of the incinerator furnace 6.

[0014] Each duct 2 has two stainless steel pipes 4 connected to its inner end, and the two stainless steel pipes 4 are arranged in a parallel manner, one above the other.

[0015] Seven nozzles 5 are spaced apart on each stainless steel pipe 4. (The number of nozzles can be determined according to the type and size of the incinerator.) The stainless steel pipe 4 is located at the grate step inside the furnace chamber 6 of the incinerator.

[0016] An insulation layer 7 is installed on the outside of the air duct 2.

[0017] In the above description, the model number of the turbine butterfly valve is DN150.

[0018] In the above description, there are 7 φ32*4 nozzles on the stainless steel pipe, and then the casting material is reapplied.

[0019] This invention branches off a new air duct from the main primary air duct of the boiler and installs multiple stainless steel pipes and nozzles at the grate steps, allowing air to be evenly distributed into the waste. This ensures that the waste receives sufficient oxygen in all parts, thereby improving combustion efficiency. This enables the application and realization of low-carbon waste combustion technology.

Claims

1. A stepped air modification device for a waste incinerator, comprising a primary air main duct (1) of the boiler, characterized in that: The boiler primary air main pipe (1) is connected to an air duct (2), a turbine butterfly valve (3) is installed in the middle of the air duct (2), and a stainless steel pipe (4) is installed at the end of the air duct (2). The stainless steel pipe (4) extends into the furnace chamber (6) of the incinerator, and a nozzle (5) is installed on the stainless steel pipe (4).

2. The waste incinerator stepped air modification device according to claim 1, characterized in that: There are two air ducts (2), which are respectively installed on both sides of the outer wall of the incinerator furnace (6).

3. The waste incinerator stepped air modification device according to claim 1, characterized in that: Each air duct (2) is connected to two stainless steel pipes (4) at its end, and the two stainless steel pipes (4) are arranged in a parallel manner, one above the other.

4. The waste incinerator stepped air modification device according to claim 3, characterized in that: The stainless steel pipe (4) is provided with seven nozzles (5) spaced apart.

5. The waste incinerator stepped air modification device according to claim 3, characterized in that: The stainless steel pipe (4) is located at the grate steps inside the furnace chamber (6) of the incinerator.

6. The waste incinerator stepped air modification device according to claim 1, characterized in that: The air duct (2) is provided with an insulation layer (7) on the outside.

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