An incinerator flue gas circulation and reburning device

Abstract

This utility model relates to the field of flue gas recycling technology, specifically a flue gas recycling and re-combustion device for an incinerator. It includes a first furnace body and a second furnace body, which are connected to form a combustion chamber. A circular mounting area is provided at the edge of the outer wall of the first furnace body. The advantages of this utility model are: by setting up the first and second furnace bodies and fixing them together to form the combustion chamber, and by installing multiple burners on the outer wall of the circular mounting area, the gas enters the combustion chamber through the inlet pipe. The multiple burners spray high-temperature flames into the combustion chamber, facilitating the ignition of combustibles and harmful substances in the flue gas, thereby achieving flue gas treatment. Furthermore, the heat generated by combustion can be easily recovered later, reducing energy waste. The gas is filtered through a filter plate and filter element, ensuring the cleanliness of the discharged gas and preventing harm to the human body and the environment, thus effectively solving the problems existing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of flue gas recycling technology, and in particular to a device for circulating and re-combusting flue gas from an incinerator. Background Technology

[0002] Incinerators primarily utilize the complete combustion of fuels such as coal, fuel oil, and natural gas to carbonize and burn the objects to be processed at high temperatures. It is a high-temperature heat treatment technology. Cremation machines are devices used to cremate remains and are a type of incinerator. However, existing cremation machines and incinerators still have the following shortcomings in use:

[0003] Cremators and incinerators produce flue gas containing a large amount of harmful substances and combustibles during use. Direct discharge of the flue gas into the outside world will pollute the environment and harm the human body. In addition, the combustibles present will cause energy waste. Based on this, this application proposes an incinerator flue gas recycling and re-combustion device, which can solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for recirculating and reburning flue gas in an incinerator.

[0005] The purpose of this utility model is achieved through the following technical solution: a flue gas recirculation and reburning device for an incinerator, comprising a first furnace body and a second furnace body, which are connected together to form a combustion chamber. A circular installation area is provided at the edge of the outer wall of the first furnace body, and a plurality of burners arranged in a circumferential array are installed on its outer wall. An air inlet pipe is installed on the side of the first furnace body away from the second furnace body, and an air outlet pipe is installed on the side of the second furnace body away from the first furnace body. A filter plate is installed on the side of the second furnace body near the inner wall of the air outlet pipe, and a filter element is installed inside the air outlet pipe.

[0006] Optionally, the space inside the first furnace body is larger than the space inside the second furnace body, and the edges of the first and second furnace bodies are fixedly connected by flange bolts.

[0007] Optionally, the outer wall of the circular mounting area is provided with multiple threaded holes, and the multiple flamethrowers are respectively installed inside the multiple threaded holes.

[0008] Optionally, all of the flamethrowers are oriented toward the axial position of the first furnace body.

[0009] Optionally, connecting flanges are installed on the opposite end faces of the air inlet pipe and the air outlet pipe.

[0010] This utility model has the following advantages:

[0011] This incinerator flue gas recirculation and reburning device consists of a first furnace body and a second furnace body, which are fixedly connected to form a combustion chamber. Multiple burners are installed on the outer wall of the circular mounting area, and the gas enters the combustion chamber through the inlet pipe. The burners spray high-temperature flames into the combustion chamber, igniting combustibles and harmful substances in the flue gas, thus treating the flue gas. The heat generated by combustion can be easily recovered later, reducing energy waste. The gas is filtered through filter plates and filter elements to ensure the cleanliness of the exhaust gas, preventing harm to humans and protecting the environment, thereby effectively solving the problems existing in the prior art. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0014] Figure 3 This is a cross-sectional structural diagram of the first furnace body and the second furnace body in this utility model.

[0015] In the diagram: 1-First furnace body, 2-Second furnace body, 3-Gas outlet pipe, 4-Circular installation area, 5-Gas inlet pipe, 6-Flame burner, 7-Filter element, 8-Filter plate, 9-Combustion chamber, 10-Threaded hole. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0017] like Figures 1 to 3 As shown, an incinerator flue gas recirculation and reburning device includes a first furnace body 1 and a second furnace body 2, which are connected to form a combustion chamber 9. A circular installation area 4 is provided at the edge of the outer wall of the first furnace body 1, and multiple burners 6 arranged in a circular array are installed on its outer wall. An air inlet pipe 5 is installed on the side of the first furnace body 1 away from the second furnace body 2, and an air outlet pipe 3 is installed on the side of the second furnace body 2 away from the first furnace body 1. A filter plate 8 is installed on the side of the second furnace body 2 near the inner wall of the air outlet pipe 3, and a filter element 7 is installed inside the air outlet pipe 3.

[0018] As an optional technical solution of this utility model, the internal space of the first furnace body 1 is larger than the internal space of the second furnace body 2. The edges of the first furnace body 1 and the second furnace body 2 are fixedly connected by flange bolts, which makes it easy for the two to adopt a detachable structure, so that they can be disassembled and replaced later.

[0019] As an optional technical solution of this utility model, the outer wall of the circular installation area 4 is provided with multiple threaded holes 10, and multiple flamethrowers 6 are respectively installed inside the multiple threaded holes 10. This facilitates the provision of installation positions for multiple flamethrowers 6, and makes it convenient for the flame direction of multiple flamethrowers 6 to be oriented towards the axis of the first furnace body 1 and the second furnace body 2, thereby facilitating the ignition and combustion of the flue gas in the incinerator.

[0020] As an optional technical solution of this utility model, multiple burners 6 are all oriented towards the axis of the first furnace body 1. This makes it convenient for the flames of multiple burners 6 to be ejected towards the center of the combustion chamber 9 after the flue gas from the incinerator enters the interior of the combustion chamber 9, so as to facilitate the combustion of the gas in the incinerator and the treatment of harmful substances.

[0021] As an optional technical solution of this utility model, connecting flanges are installed on the far ends of the air inlet pipe 5 and the air outlet pipe 3. This facilitates the connection of the air inlet pipe 5 and the air outlet pipe 3 with external pipes, making it convenient for the device to be installed in the early stage and disassembled in the later stage.

[0022] In summary, the features, assembly method, usage process, and functions of each component in this utility model are as follows: By setting up a first furnace body 1 and a second furnace body 2, the two are fixedly connected to form a combustion chamber 9. At the same time, multiple burners 6 are installed on the outer wall of the circular installation area 4, and then enter the interior of the combustion chamber 9 through the air inlet pipe 5. The multiple burners 6 spray high-temperature flames into the interior of the combustion chamber 9, which facilitates the ignition of combustibles and harmful substances in the flue gas, thereby achieving the treatment of the flue gas. The heat generated by combustion can be easily recovered later, reducing energy waste. The gas is filtered by the filter plate 8 and the filter element 7, thereby ensuring the cleanliness of the discharged gas, avoiding harm to the human body, and protecting the environment, thus effectively solving the problems existing in the prior art.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for recirculating and reburning flue gas from an incinerator, characterized in that: The furnace includes a first furnace body (1) and a second furnace body (2), which are connected together to form a combustion chamber (9). A circular mounting area (4) is provided at the edge of the outer wall of the first furnace body (1), and multiple flamethrowers (6) arranged in a circular array are installed on its outer wall. An air inlet pipe (5) is installed on the side of the first furnace body (1) away from the second furnace body (2). An air outlet pipe (3) is installed on the side of the second furnace body (2) away from the first furnace body (1). A filter plate (8) is installed on the side of the second furnace body (2) near the inner wall of the air outlet pipe (3). A filter element (7) is installed inside the air outlet pipe (3).

2. The incinerator flue gas recirculation and reburning device according to claim 1, characterized in that: The space inside the first furnace body (1) is larger than the space inside the second furnace body (2), and the edges of the first furnace body (1) and the second furnace body (2) are fixedly connected by flange bolts.

3. The incinerator flue gas recirculation and reburning device according to claim 1, characterized in that: The outer wall of the circular mounting area (4) is provided with multiple threaded holes (10), and multiple flamethrowers (6) are respectively installed inside the multiple threaded holes (10).

4. The incinerator flue gas recirculation and reburning device according to claim 1, characterized in that: All of the aforementioned flamethrowers (6) are oriented toward the axis of the first furnace body (1).

5. The incinerator flue gas recirculation and reburning device according to claim 1, characterized in that: Both the inlet pipe (5) and the outlet pipe (3) have connecting flanges installed on their opposite ends.

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