Harmful gas treatment device for garbage combustion power generation

Abstract

The utility model relates to a kind of waste combustion power generation harmful gas treatment devices, including the flue being arranged vertically, flue lower end is as air inlet end, upper end is as air outlet end, air outlet end is connected to cloth bag dust collector, flue is located in vertical middle part and is provided with accelerated coagulation seat, accelerated coagulation seat is provided with the coagulation passage that connects upper and lower flue, and coagulation passage is spiral-shaped.Using the above scheme, the utility model provides a kind of waste combustion power generation harmful gas treatment device for reducing harmful gas carrying moisture.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration equipment, specifically to a device for treating harmful gases from waste incineration power generation. Background Technology

[0002] The core function of waste incineration is to achieve the "reduction, resource recovery, and harmlessness" of urban waste. It can significantly reduce the volume of waste and utilize its heat energy for power generation and heating, while the high temperatures can effectively kill pathogens. However, this process generates various harmful gases, which can cause serious harm if not properly handled. Therefore, modern waste incineration plants must rely on advanced hazardous gas treatment systems to ensure that pollutants are discharged in compliance with standards, thus balancing efficiency and environmental safety.

[0003] Harmful gases produced by waste incineration are transported along the flue. During the deacidification process of these harmful gases, alkaline solution is atomized and sprayed into the flue. This results in the particulate matter in the harmful gases having a certain amount of moisture. These semi-dry particles will enter the bag filter along with the harmful gases and adhere to the filter bags. They cannot be separated from the filter bags by vibration and can only be solved by replacing the filter bags, which increases the frequency of filter bag replacement and thus increases operation and maintenance costs. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a waste incineration power generation hazardous gas treatment device that reduces the water vapor carried by hazardous gases.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a vertically arranged flue, with the lower end of the flue serving as the air inlet and the upper end serving as the air outlet. The air outlet is connected to a bag filter. An accelerated condensation seat is provided in the middle of the flue, and the accelerated condensation seat is provided with a condensation channel connecting the upper and lower flues. The condensation channel is spiral in shape.

[0006] By adopting the above technical solution, when harmful gas enters the condensation channel from the bottom, the spiral shape of the condensation channel generates a certain centrifugal force as the harmful gas flows along it. This centrifugal force squeezes the harmful gas against the circumferential wall of the condensation channel, effectively increasing the water vapor density within the harmful gas. This helps the water vapor condense into droplets, which then flow out of the condensation channel from top to bottom, greatly reducing the water vapor content in the harmful gas. This reduces the possibility of semi-dry particles adhering to the filter bag, thereby reducing operation and maintenance costs.

[0007] The present invention is further configured such that: the accelerated condensation seat is provided with a medium chamber around the condensation channel, and the medium chamber is provided with a medium inlet pipe for introducing cooling medium into the medium chamber and a medium outlet pipe for sending cooling medium out of the medium chamber.

[0008] By adopting the above technical solution, the circumferential channel wall of the condensation channel is not only used to guide the flow of harmful gases, but also serves as a heat exchange wall with the medium chamber, transferring the heat of the harmful gases to the cooling medium in the medium chamber. As the temperature of the harmful gases decreases, water vapor is more likely to condense into droplets.

[0009] The present invention is further configured such that: the medium chamber is provided with a spiral medium channel, and the medium inlet pipe and the medium outlet pipe are respectively connected to the two ends of the medium channel.

[0010] By adopting the above technical solution, a spiral medium channel for the flow of cooling medium is added to the medium chamber, which not only ensures the unidirectional flow of cooling medium, but also effectively increases the heat exchange time of cooling medium, thereby fully cooling down harmful gases.

[0011] The present invention is further configured such that: an inlet channel connecting the flue located below the accelerated condensation seat to the condensation channel is provided below, and the inlet channel is frustum-shaped with the larger end of the frustum facing downward.

[0012] By adopting the above technical solution, the harmful gas is gradually compressed and sent into the condensation channel through the frustum-shaped inlet channel, which effectively increases the water vapor density in the harmful gas, making it easier for the water vapor to condense into droplets. At the same time, it can also increase the flow rate of the harmful gas and increase the centrifugal force generated by the harmful gas in the condensation channel.

[0013] The present invention is further configured such that: an outflow channel connecting the flue located above the accelerated condensation seat to the condensation channel is provided above the accelerated condensation seat, and the outflow channel is frustum-shaped with the larger end of the frustum facing upward.

[0014] By adopting the above technical solution, the harmful gases accumulated in the condensation channel are diffused by the frustum-shaped outflow channel, so that the harmful gases can be restored to the state of filling the flue.

[0015] The present invention is further configured such that: an airflow equalization disk is provided above the accelerated condensation seat in the flue, and the airflow equalization disk is provided with a plurality of vertically penetrating airflow equalization holes.

[0016] By adopting the above technical solution, after the harmful gas is diffused in the outflow channel, the airflow distribution disk organizes the diffused harmful gas into a uniform, stable, and parallel airflow, thereby ensuring the dust removal effect after entering the bag filter.

[0017] The present invention is further configured such that: the accelerated condensation seat is located at the horizontal center and a channel column is arranged vertically; the channel column is surrounded by a circumferential channel wall; a spiral channel partition is arranged between the channel column and the circumferential channel wall; the space between the channel column, the circumferential channel wall and the channel partition serves as a condensation channel; and conical transition blocks are respectively extended at the upper and lower ends of the channel column.

[0018] By adopting the above technical solution, conical transition blocks are added to both ends of the channel column, making the transition of harmful gases from the inlet channel to the condensation channel and from the condensation channel to the outlet channel smoother, and avoiding the obstruction of harmful gases by the end face of the channel column. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] like Figure 1As shown, this utility model discloses a waste-to-energy incineration hazardous gas treatment device, including a vertically arranged flue 1. The lower end of the flue 1 serves as the air inlet 11, and the upper end serves as the air outlet 12. The air outlet 12 is connected to a bag filter. An accelerated condensation seat 2 is arranged in the middle of the flue 1. The accelerated condensation seat 2 is provided with a condensation channel 21 connecting the upper and lower flues 1. The condensation channel 21 is spiral-shaped. When the hazardous gas enters the condensation channel 21 from the lower end, due to the spiral shape of the condensation channel 21, the hazardous gas will generate a certain centrifugal force when flowing along the condensation channel 21. This centrifugal force will squeeze the hazardous gas against the circumferential channel wall of the condensation channel 21, effectively increasing the water vapor density in the hazardous gas, which in turn helps the water vapor condense into droplets. The condensed droplets will flow out of the condensation channel 21 from top to bottom, greatly reducing the water vapor content in the hazardous gas, thereby reducing the possibility of semi-dry particles adhering to the filter bag, and thus reducing operation and maintenance costs.

[0023] The accelerated condensation seat 2 is provided with a medium chamber 22 around the condensation channel 21. The medium chamber 22 is provided with a medium inlet pipe 221 for introducing cooling medium into the medium chamber 22 and a medium outlet pipe 222 for sending cooling medium out of the medium chamber 22. The circumferential channel wall of the condensation channel 21 is not only used to guide the flow of harmful gases, but also serves as a heat exchange wall with the medium chamber 22, transferring the heat of the harmful gases to the cooling medium in the medium chamber 22. As the temperature of the harmful gases decreases, water vapor is more likely to condense into droplets.

[0024] The medium chamber 22 is provided with a spiral medium channel 223. The medium inlet pipe 221 and the medium outlet pipe 222 are respectively connected to the two ends of the medium channel 223. The spiral medium channel 223 for cooling medium flow is added in the medium chamber 22, which not only ensures the unidirectional flow of the cooling medium, but also effectively improves the heat exchange time of the cooling medium, thereby fully cooling down the harmful gas.

[0025] Below the accelerated condensation seat 2, there is an inlet channel 23 that connects the flue 1 located below to the condensation channel 21. The inlet channel 23 is frustum-shaped with the larger end of the frustum facing downward. The frustum-shaped inlet channel 23 gradually compresses the harmful gas and sends it into the condensation channel 21, which effectively increases the water vapor density in the harmful gas, making it easier for the water vapor to condense into droplets. At the same time, it can also increase the flow rate of the harmful gas and increase the centrifugal force generated by the harmful gas in the condensation channel 21.

[0026] An outflow channel 24 is provided above the accelerated condensation seat 2, which connects the upper flue 1 and the condensation channel 21. The outflow channel 24 is shaped like a frustum with the larger end of the frustum facing upward. The frustum-shaped outflow channel 24 diffuses the harmful gases accumulated in the condensation channel 21, so that the harmful gases can be restored to the state of filling the flue 1.

[0027] The flue 1 is located above the accelerated condensation seat 2 and is equipped with an airflow equalization disk 3. The airflow equalization disk 3 is equipped with multiple vertically penetrating airflow equalization holes 31. After the harmful gas is diffused in the outflow channel 24, the airflow equalization disk 3 organizes the diffused harmful gas into a uniform, stable and parallel airflow, thereby ensuring the dust removal effect after entering the bag filter.

[0028] The accelerated condensation seat 2 is located at the horizontal center and has a vertically arranged channel column 24. The channel column 24 is surrounded by a circumferential channel wall 25. A spiral channel baffle 26 is arranged between the channel column 24 and the circumferential channel wall 25. The space between the channel column 24, the circumferential channel wall 25 and the channel baffle 26 serves as the condensation channel 21. Conical transition blocks 241 are extended from the upper and lower ends of the channel column 24. The addition of conical transition blocks 241 at both ends of the channel column 24 makes the transition of harmful gas from the inlet channel 23 to the condensation channel 21 and from the condensation channel 21 to the outlet channel 24 smoother, and avoids the harmful gas being obstructed by the end face of the channel column 24.

Claims

1. A waste-to-energy incineration hazardous gas treatment device, comprising a vertically arranged flue, wherein the lower end of the flue serves as an air inlet and the upper end serves as an air outlet, and the air outlet is connected to a bag filter, characterized in that: The flue is provided with an accelerated condensation seat in the middle of the vertical section. The accelerated condensation seat is provided with a condensation channel that connects the upper and lower flues. The condensation channel is spiral in shape.

2. The waste-to-energy hazard gas treatment device according to claim 1, characterized in that: The accelerated condensation seat is provided with a medium chamber around the condensation channel. The medium chamber is provided with a medium inlet pipe for introducing cooling medium into the medium chamber and a medium outlet pipe for sending cooling medium out of the medium chamber.

3. The waste-to-energy incineration hazardous gas treatment device according to claim 2, characterized in that: The medium chamber is provided with a spiral medium channel, and the medium inlet pipe and the medium outlet pipe are respectively connected to the two ends of the medium channel.

4. The waste-to-energy incineration hazardous gas treatment device according to claim 1, characterized in that: The accelerated condensation seat is provided with an inlet channel below which connects the flue below with the condensation channel. The inlet channel is frustum-shaped with the larger end of the frustum facing downward.

5. The waste-to-energy incineration hazardous gas treatment device according to claim 4, characterized in that: The accelerated condensation seat is provided with an outflow channel above it that connects the flue located above it with the condensation channel. The outflow channel is shaped like a frustum with the larger end of the frustum facing upwards.

6. The waste-to-energy incineration hazardous gas treatment device according to claim 5, characterized in that: The flue is located above the accelerated condensation seat and is equipped with an airflow equalization disk, which has multiple vertically penetrating airflow equalization holes.

7. The waste-to-energy incineration hazardous gas treatment device according to claim 5, characterized in that: The accelerated condensation seat is located at the horizontal center and has a channel column arranged vertically. The channel column is surrounded by a circumferential channel wall. A spiral channel partition is arranged between the channel column and the circumferential channel wall. The space between the channel column, the circumferential channel wall and the channel partition serves as a condensation channel. Conical transition blocks are respectively extended at the upper and lower ends of the channel column.

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