Visual garbage incinerator primary air heating biogas direct combustion burner

Abstract

The utility model discloses a visual garbage incinerator primary air heating biogas direct combustion burner which comprises a primary air duct, a burner air duct support, a biogas fuel pipe, an ignition gas gun and a linear burner, the bottom of the primary air duct is communicated with an unheated cold air duct, and the upper portion of the primary air duct is communicated with a heated hot air duct. A combustor air duct support is arranged in the primary air duct, a biogas fuel pipe is arranged on one side of the primary air duct, the primary air duct is communicated with the anaerobic jar through the biogas fuel pipe, and the biogas fuel pipe penetrates through the primary air duct and extends to the bottom of the combustor air duct support. And adjustment can be carried out according to the use requirement, combustion can be carried out only by providing fuel, the flame combustion condition can be monitored in real time through visual monitoring, and the primary air heating requirement can be met.

Description

Technical Field

[0001] This utility model relates to the technical field of primary gas biogas burners for incinerators, specifically to a visual primary air-heated biogas direct combustion burner for waste incinerators. Background Technology

[0002] With the development of technology, combustion equipment is being used more and more widely in the thermal power and incineration industries. It burns industrial waste liquids, wastewater, industrial waste, domestic waste, biofuels, dust and other materials generated from industrial production to generate electricity and heat. It allows polluted industrial wastewater and domestic waste to be reused, and it allows hazardous waste liquids that cannot be disposed of to no longer pollute the land and atmosphere after combustion, thus providing a closed-loop treatment for our living environment.

[0003] Currently, when waste enters a waste incinerator, it causes problems such as incomplete combustion, low heat output, excessive flue gas, and large amounts of slag, which are difficult to handle.

[0004] Therefore, a visualized waste incinerator primary air heating biogas direct combustion burner is needed. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a visual waste incinerator primary air heating biogas direct combustion burner. The purpose of this invention is to effectively heat the air in the primary air duct, which can be adjusted according to usage requirements. It only requires fuel to burn, and the visual monitoring can monitor the flame combustion status in real time, thus meeting the primary air heating requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a visualized primary air heating biogas direct-fired burner for a waste incinerator, comprising a primary air duct, a burner duct support, a biogas fuel pipe, an ignition gun, and a linear burner. The bottom of the primary air duct is connected to an unheated cold air duct, and the upper part of the primary air duct is connected to a heated hot air duct. The burner duct support is installed inside the primary air duct, and a biogas fuel pipe is installed on one side of the primary air duct. The primary air duct is connected to an anaerobic digester via the biogas fuel pipe, which extends through the primary air duct to the bottom of the burner duct support. The burner duct support is divided into two sections on both sides. An ignition gun is installed, with a high-energy igniter at the end of the ignition gun placed outside the primary air duct. The ignition nozzle at the front end of the ignition gun is connected to the outlet end of the biogas fuel pipe, so that the biogas at the outlet end of the biogas fuel pipe is ignited by the electric arc emitted from the ignition nozzle, forming a small flame. A linear burner is installed above the ignition nozzle, and the linear burner is fixedly installed with the burner duct support. The linear burner ignites the mixture of cold air and biogas in the cold air duct through the small flame. The mixed gas after combustion is transported to the hot air duct to dry the garbage in the incinerator and the garbage at the end of the conveyor belt.

[0007] Preferably, the cold air duct and the primary air duct are arranged on the same axis to fully heat the cold air flowing out of the cold air duct.

[0008] Preferably, a manhole access door is provided on one side of the primary air duct.

[0009] Preferably, the manhole access door is located on the surface of the primary air duct near the high-energy igniter.

[0010] Preferably, a flame monitor and a viewing hole are installed on the surface of the primary air duct near the high-energy igniter.

[0011] Preferably, the ignition nozzle is fitted into the linear burner.

[0012] Preferably, a flame television is installed on one side above the primary air duct.

[0013] In summary, this utility model provides a visualized primary air heating biogas direct combustion burner for a waste incinerator. An ignition nozzle is fitted onto the bottom of the linear burner and connected to the outlet end of the biogas fuel pipe. A high-energy igniter, located at the end of the ignition gun, is placed outside the primary air duct. The high-energy igniter operates, and an electric arc is emitted from the ignition nozzle at the front end of the ignition gun, igniting the biogas-air mixture ejected from the ignition nozzle to form a small fire. After the small fire is detected by a flame detector, the biogas from the biogas fuel pipe enters the linear burner. The biogas in the linear burner and the air in the cold air duct form a mixture, which is ignited by the small fire at the ignition nozzle. The combusted mixture is then transported to the hot air duct to dry the waste in the incinerator and at the end of the conveyor belt.

[0014] This invention can effectively heat the air in the primary air duct, and can be adjusted according to usage requirements. It only requires fuel to burn, and the visual monitoring can monitor the flame combustion status in real time, thus meeting the primary air heating requirements.

[0015] The structure and size of this invention allow for flame size adjustment based on the required temperature and airflow of the primary air duct, thereby regulating the temperature of the primary air duct and monitoring the flame status in real time. However, the internal structure and principle remain unchanged. The burner in the primary air duct uses biogas produced from wastewater as fuel, and the combustion-supporting air is supplied directly from the airflow passing through the duct, eliminating the need for additional combustion-supporting air. Adjusting the biogas volume regulates both the flame size and the temperature of the primary air duct. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the primary gas biogas burner in a waste incinerator, as per this utility model.

[0017] Figure 2 This is a schematic diagram of the primary air combustion system of this utility model;

[0018] Figure 3 This is a top-view structural diagram of the primary gas and biogas burner of the visual waste incinerator of this utility model;

[0019] Figure 4 This is a schematic diagram of the transverse cross-section structure of the primary gas and biogas burner of the visual waste incinerator in the left view direction of this utility model.

[0020] Figure 5 This is a schematic diagram of the flame monitor and observation hole structure on the primary gas and biogas burner of the visual waste incinerator of this utility model.

[0021] In the diagram: 1. Primary air duct; 2. Burner duct support; 3. Biogas fuel pipe; 4. Ignition gun; 5. High-energy igniter; 6. Linear burner; 7. Ignition nozzle; 8. Manhole inspection door; 9. Flame monitor; 10. Observation hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] To address the problems described above, we have invented a visualized waste incinerator primary air heating biogas direct combustion burner.

[0024] like Figure 2 The diagram shows a primary air combustion system for waste incineration. Waste pretreatment is required. During the process of transporting the mixed waste to the incinerator via a conveyor belt, wastewater flows from the waste pile. This wastewater is collected in a fermentation tank (anaerobic digester). Over time, this wastewater accumulates and produces biogas. This biogas is used as fuel to heat the air flowing through the primary air duct. The heated air then enters the incinerator and mixes with the burning waste, making it easier for the waste to burn completely. The heated air is also directed to the end of the conveyor belt transporting the waste to the incinerator to dry the waste. The dried waste then enters the incinerator and burns more easily.

[0025] like Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown:

[0026] This utility model relates to a visualized primary air heating biogas direct combustion burner for a waste incinerator, comprising a primary air duct 1, a burner duct support 2, a biogas fuel pipe 3, an ignition gun 4, and a linear burner 5. A cold air duct is connected to the bottom of the primary air duct 1, and a hot air duct is connected to the upper part of the primary air duct 1. The burner duct support 2 is housed inside the primary air duct 1. The biogas fuel pipe 3 is located on one side of the primary air duct 1, connecting the primary air duct 1 to an anaerobic digester. The biogas fuel pipe 3 extends through the primary air duct 1 to the bottom of the burner duct support 2. Ignition guns 4 are distributed on both sides of the burner duct support 2. The high-energy igniter 41 at the end of the ignition gun 4 is placed outside the primary air duct 1. The ignition nozzle 6 at the front end of the ignition gun 4 is connected to the outlet end of the biogas fuel pipe 3 so that the biogas at the outlet end of the biogas fuel pipe 3 is ignited by the electric arc emitted in the ignition nozzle 6 to form a small flame. A linear burner 5 is installed on the upper part of the ignition nozzle 6. The linear burner 5 is fixedly installed with the burner duct support 2. The linear burner 5 ignites the mixture of cold air and biogas in the cold air duct through the small flame. The mixed gas after combustion is transported to the hot air duct to dry the garbage in the incinerator and the garbage at the end of the conveyor belt.

[0027] Specifically, a biogas fuel pipe 3 is installed on one side of the primary air duct 1, providing biogas fuel to the primary air duct 1. Inside the primary air duct 1 is a burner duct support 2 that supports a linear burner 5. The linear burner 5 is installed on top of the burner duct support 2, and an ignition nozzle 6 is fitted onto the bottom of the linear burner 5. The ignition nozzle 6 is connected to the outlet end of the biogas fuel pipe 3. A high-energy igniter 41, located at the end of the ignition gun 4, is placed outside the primary air duct 1. When the high-energy igniter 41 operates, the ignition nozzle 6 inside the front end of the ignition gun 4 emits an electric arc, igniting the biogas fuel ejected from the ignition nozzle 6. The biogas and air are mixed to form a small flame. After the small flame is detected by the flame detector 11, the biogas from the biogas fuel pipe 3 enters the linear burner 5. The biogas in the linear burner 5 and the air in the cold air duct form a mixture, which is ignited by the small flame at the ignition nozzle 6. The mixed gas after combustion is transported to the hot air duct to dry the garbage in the incinerator and the garbage at the end of the conveyor belt. This completes the heating of the garbage in the incinerator and the drying of the garbage at the end of the conveyor belt transported to the incinerator, so as to ensure that the garbage is fully and quickly burned in the incinerator. This solves the technical problems of excessive flue gas, excessive slag after combustion, and difficulty in handling environmental protection measures.

[0028] More specifically, in at least one embodiment, oxygen content sensors and temperature sensors may be provided above and below the linear burner 5 in the primary air duct 1 to detect the temperature and oxygen content of the air in the front and rear air ducts of the linear burner 5 in the primary air duct 1.

[0029] In at least one embodiment, the cold air duct and the primary air duct 1 are arranged on the same axis to fully heat the cold air flowing out of the cold air duct.

[0030] In at least one embodiment, a manhole inspection door 7 is provided on one side of the primary air duct 1 to ensure that the technical structure allows for observation of the fault conditions inside the primary gas biogas burner and facilitates maintenance.

[0031] In at least one embodiment, in order to ignite and observe the combustion in the burner, a manhole access door 7 is installed on the surface of the primary air duct 1 near the high-energy igniter 41, so that the manhole access door 7 and the high-energy igniter 41 are both installed on the same side of the primary air duct 1, which facilitates ignition operation and observation of combustion.

[0032] In at least one embodiment, a flame monitor 11 and a viewing hole 12 are provided on the surface of the primary air duct 1 near the high-energy igniter 41, so that the flame monitor 11, the viewing hole 12 and the high-energy igniter 41 are all located on the same side of the primary air duct 1, which facilitates ignition operation and observation of combustion.

[0033] In at least one embodiment, in order to ensure that the biogas ejected from the ignition nozzle 6 is fully combusted, the ignition nozzle 6 is connected to the linear burner 5. This allows the small flame after the ignition nozzle 6 is ignited to ignite the mixed gas in the linear burner 5, thereby increasing the combustion speed and efficiency of the cold air flowing out of the cold air duct. This ensures that the waste in the incinerator is heated and dried, improving combustion efficiency and reducing problems such as dense smoke and excessive slag due to incomplete combustion.

[0034] In at least one embodiment, a flame television is provided on one side above the primary air duct 1. The flame television is connected to the monitoring room screen for real-time monitoring and observation of the burner status of the linear burner 5.

[0035] The embodiments described in this utility model are for illustrative purposes only and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A visualized primary air heating biogas direct combustion burner for a waste incinerator, characterized in that, The system includes a primary air duct (1), a burner duct support (2), a biogas fuel pipe (3), an ignition gun (4), and a linear burner (5). The bottom of the primary air duct (1) is connected to an unheated cold air duct, and the upper part of the primary air duct (1) is connected to a heated hot air duct. The burner duct support (2) is installed inside the primary air duct (1). A biogas fuel pipe (3) is installed on one side of the primary air duct (1). The primary air duct (1) is connected to the anaerobic digester through the biogas fuel pipe (3). The biogas fuel pipe (3) extends through the primary air duct (1) to the bottom of the burner duct support (2). Ignition guns (4) are distributed on both sides of the burner duct support (2). The ignition guns (4) are installed at the end of the burner duct support (2). The high-energy igniter (41) is placed outside the primary air duct (1). The ignition nozzle (6) at the front end of the ignition gun (4) is connected to the outlet end of the biogas fuel pipe (3) so that the biogas at the outlet end of the biogas fuel pipe (3) is ignited by the electric arc emitted in the ignition nozzle (6) to form a small flame. A linear burner (5) is set on the upper part of the ignition nozzle (6). The linear burner (5) is fixedly installed with the burner duct support (2). The linear burner (5) ignites the mixture of cold air and biogas in the cold air duct through the small flame. The mixed gas after combustion is transported to the duct of the hot air duct to dry the garbage in the incinerator and the garbage at the end of the conveyor belt.

2. The visualized waste incinerator primary air heating biogas direct combustion burner according to claim 1, characterized in that, The cold air duct and the primary air duct (1) are set on the same axis to fully heat the cold air flowing out of the cold air duct.

3. The visualized waste incinerator primary air heating biogas direct combustion burner according to claim 1, characterized in that, A manhole inspection door (7) is provided on one side of the primary air duct (1).

4. A visualized waste incinerator primary air heated biogas direct combustion burner according to claim 3, characterized in that, The manhole inspection door (7) is located on the surface of the primary air duct (1) near the high-energy igniter (41).

5. A visualized waste incinerator primary air heated biogas direct combustion burner according to claim 1, characterized in that, A flame detector (11) and a fire observation hole (12) are installed on the surface of the primary air duct (1) near the high-energy igniter (41).

6. A visualized waste incinerator primary air heated biogas direct combustion burner according to claim 1, characterized in that, The ignition nozzle (6) is fitted with the linear burner (5).

7. A visualized waste incinerator primary air heated biogas direct combustion burner according to claim 1, characterized in that, A flame television is installed on one side above the primary air duct (1).

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