A square baffling TO furnace

Abstract

This utility model discloses a square baffled TO furnace, relating to the technical field of industrial waste gas and waste liquid treatment equipment. It includes a furnace shell assembly, a refractory material assembly, a burner mounting pipe, a sight glass assembly, a pressure tapping pipe assembly, a thermocouple pipe assembly, and a support assembly. The refractory material assembly is laid on the inner wall of the furnace shell assembly, and the burner mounting pipe, pressure tapping pipe assembly, and thermocouple pipe assembly are all welded to the furnace shell assembly. This utility model, by setting the furnace shell assembly as an integrated square structure combined with multiple high-alumina brick baffles forming a flue gas baffle channel, can shorten the overall length of the equipment and reduce the relative surface area, while extending the actual path through flue gas reversal flow, thereby effectively reducing the space occupied by the equipment and reducing material usage to lower investment costs. Through the thermal insulation effect of the multi-layered refractory material assembly, combined with the integrated square structure and relatively small surface area of ​​the furnace shell assembly, heat loss can be reduced, thus lowering fuel consumption.

Description

Technical Field

[0001] This utility model belongs to the technical field of industrial waste gas and waste liquid treatment equipment, and in particular relates to a square baffle TO furnace. Background Technology

[0002] In the harmless treatment of industrial waste gas and waste liquid, thermal oxidation (TO) technology (which controls specific temperature conditions and flue gas residence time to cause pollutants (such as volatile organic compounds and harmful gases) in industrial waste gas and waste liquid to undergo oxidation and decomposition reactions in a high-temperature environment, ultimately achieving the treatment of pollutants to meet standards and avoiding the direct emission of harmful components that would cause environmental impact) is widely used due to its high treatment efficiency. The core equipment, the TO furnace, must meet the dual requirements of flue gas residence time and treatment temperature to ensure that pollutants are decomposed to meet standards.

[0003] For example, the TO furnace for treating organic waste gas proposed in announcement number CN214582559U includes a reactor, a heating layer inside the reactor, a limiting seat installed on one side inside the reactor, a first filter screen inserted inside the limiting seat, an activated carbon plate installed on one side of the first filter screen, a baffle installed on one side inside the reactor, and an air inlet provided on one side of the reactor.

[0004] The above-mentioned patent has the following defects in use:

[0005] The TO furnace has a circular shell structure. When processing flue gas, in order to meet the core parameter requirements, it is easy to have an excessively large length-to-diameter ratio. This not only results in a large space occupied by the equipment, but also increases the relative surface area, which increases heat dissipation loss and increases manufacturing and installation costs. It is difficult to adapt to compact working conditions and economic requirements. Therefore, this utility model proposes a square baffled TO furnace. Utility Model Content

[0006] This utility model provides a square baffled TO furnace. By setting the furnace shell assembly as an integrated square structure and forming a flue gas baffle channel with multiple high-alumina brick baffles, it can shorten the total length of the equipment and reduce the relative surface area. At the same time, it can extend the actual path of flue gas through flue gas reversal flow, thereby effectively reducing the space occupied by the equipment, reducing material consumption and lowering investment costs. Through the heat insulation effect of the multi-layer refractory material assembly, combined with the integrated square structure and relatively small surface area of ​​the furnace shell assembly, heat loss can be reduced and fuel consumption can be lowered. In summary, it solves the problems in the background technology.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model discloses a square baffled TO furnace, comprising:

[0009] The furnace shell assembly comprises a refractory material assembly, a burner mounting pipe assembly, a sight glass assembly, a pressure tapping pipe assembly, a thermocouple pipe assembly, and a support assembly. The refractory material assembly is laid on the inner wall of the furnace shell assembly. The burner mounting pipe assembly, pressure tapping pipe assembly, and thermocouple pipe assembly are all welded to the furnace shell assembly. One end of the burner mounting pipe penetrates the furnace shell assembly and the refractory material assembly and extends into the combustion chamber inside the furnace, while the other end of the burner mounting pipe is externally connected to the burner. The sight glass assembly is embedded in the side wall of the furnace shell assembly. One end of the pressure tapping pipe assembly penetrates the furnace shell assembly and the refractory material assembly and communicates with the interior of the furnace shell assembly, while the other end of the pressure tapping pipe assembly is externally connected to a pressure sensing element. One end of the thermocouple pipe assembly penetrates the furnace shell assembly and the refractory material assembly and communicates with the interior of the furnace shell assembly, while the other end of the thermocouple pipe assembly is externally connected to a thermocouple. The support assembly is fixedly connected to the bottom of the furnace shell assembly.

[0010] Furthermore, the furnace shell assembly is an integral square structure.

[0011] Furthermore, the refractory material assembly includes a high-alumina castable layer, a lightweight castable layer, a ceramic fiber board layer, and multiple high-alumina brick baffles. The high-alumina castable layer, the lightweight castable layer, and the ceramic fiber board layer are arranged sequentially from the inside to the outside along the interior of the furnace shell assembly. Multiple high-alumina brick baffles are located inside the high-alumina castable layer and are distributed at intervals, with flue gas deflection channels formed between adjacent high-alumina brick baffles.

[0012] Furthermore, the axis of the burner mounting pipe forms a 90° angle with the side wall of the furnace shell assembly, and a flame baffle is fixedly provided at the inner end of the burner mounting pipe.

[0013] Furthermore, the sight glass assembly includes a connecting pipe and a sight glass. The connecting pipe is welded to the furnace shell assembly, and an observation end is provided inside the connecting pipe. The sight glass is fixed to the observation end inside the connecting pipe.

[0014] Furthermore, there are two pressure tapping pipe assemblies and two thermocouple pipe assemblies, which are spaced apart along the length of the furnace shell assembly.

[0015] Furthermore, the support assembly consists of four carbon steel support legs.

[0016] The present invention has the following advantages over the prior art:

[0017] 1. Square baffle design reduces equipment space occupation: This technical solution uses an integrated square structure for the furnace shell assembly, combined with multiple high-alumina brick baffles to form a flue gas baffle channel. This can shorten the total length of the equipment and reduce the relative surface area, while extending the actual path through flue gas reversal flow, thereby effectively reducing the space occupied by the equipment, reducing material usage and lowering investment costs.

[0018] 2. Multi-layer insulation and small surface area reduce damage: This technical solution reduces heat loss and fuel consumption by using the insulation effect of multi-layer refractory material components, combined with the integrated square structure and relatively small surface area of ​​the furnace shell components.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a square baffle TO furnace according to the present invention;

[0022] Figure 2 This is a schematic diagram of a full sectional top view of a square baffle TO furnace according to the present invention;

[0023] Figure 3 This is a schematic diagram of the right-hand cross-section of a square baffle TO furnace according to the present invention.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Furnace shell assembly; 2. Refractory material assembly; 201. High alumina castable layer; 202. Lightweight castable layer; 203. Ceramic fiberboard layer; 204. High alumina brick retaining wall; 3. Burner installation pipe; 4. Sight glass assembly; 5. Pressure tapping pipe assembly; 6. Thermocouple pipe assembly; 7. Support assembly. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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. Specific Implementation

[0028] Please see Figures 1-3 As shown, a square baffled TO furnace of this utility model includes:

[0029] The furnace shell assembly 1, refractory material assembly 2, burner mounting pipe 3, sight glass assembly 4, pressure tapping pipe assembly 5, thermocouple pipe assembly 6, and support assembly 7 are all included. The refractory material assembly 2 is laid on the inner wall of the furnace shell assembly 1. The burner mounting pipe 3, pressure tapping pipe assembly 5, and thermocouple pipe assembly 6 are all welded to the furnace shell assembly 1. One end of the burner mounting pipe 3 passes through the furnace shell assembly 1 and the refractory material assembly 2 and extends into the combustion chamber inside the furnace. The other end of the burner mounting pipe 3 is externally connected to the burner. The sight glass assembly 4 is embedded in the side wall of the furnace shell assembly 1. One end of the pressure tapping pipe assembly 5 passes through the furnace shell assembly 1 and the refractory material assembly 2 and is connected to the interior of the furnace shell assembly 1. The other end of the pressure tapping pipe assembly 5 is externally connected to a pressure detection element. One end of the thermocouple pipe assembly 6 passes through the furnace shell assembly 1 and the refractory material assembly 2 and is connected to the interior of the furnace shell assembly 1. The other end of the thermocouple pipe assembly 6 is externally connected to a thermocouple. The support assembly 7 is fixedly connected to the bottom of the furnace shell assembly 1.

[0030] In the specific implementation process, after the exhaust gas enters from the furnace inlet, it is physically blocked by the high-alumina brick baffle 204 in the refractory material component 2, and is forced to flow along the baffle channel. The actual residence time is extended by the path reversal. At the other end of the burner installation pipe 3, an external burner is connected to introduce flame to heat the flue gas to the corresponding temperature (e.g., flue gas temperature: 1100℃; flow rate 1500N / m³; flue gas velocity 6.3m / s; refractory material thickness 350mm (120mm high-alumina castable + 150mm lightweight castable + 80mm ceramic fiber). The following comparison is made with a residence time of 2 seconds: For a traditional circular TO furnace, the flue gas flow dimension is ∅655mm, the metal wall thickness is 10mm, the outer diameter is ∅1375mm, the incinerator length is 13000mm, and the equipment surface area is approximately 57.6㎡. Material usage: shell 0.57m³, ceramic fiber board 4.25m³, lightweight castable 6.45m³, high-alumina castable 3.77m³; For a square baffled TO furnace, the flue gas flow diameter is 450mm×750mm, the refractory material thickness is 350mm, and the metal... The equipment has a wall thickness of 10mm and dimensions of 5370mm×2230mm×1470mm, with an external surface area of ​​approximately 45.6㎡. Material usage includes: shell 0.44m³, ceramic fiber board 3.28m³, lightweight castable refractory 5.12m³, high-alumina castable 3.18m³, and high-alumina brick 0.24m³. The combination of a square structure and a baffle design results in a compact design, significantly reducing equipment length and space occupation. This, along with reduced material usage, lowers investment costs. The smaller surface area also reduces heat loss and fuel consumption. The multi-layer refractory material component 2 (high-alumina castable layer 201 withstands temperatures above 1100℃, lightweight castable layer 202 reduces heat conduction, and ceramic fiber board layer 203 reduces heat dissipation) can effectively isolate the high temperature inside the furnace and reduce heat loss. The combustion state and flue gas flow in the furnace can be observed through the sight glass component 4, which facilitates real-time monitoring of equipment operation. The other end of the pressure tapping pipe component 5 is connected to an external pressure detection element to monitor the furnace pressure in real time, and the other end of the thermocouple pipe component 6 is connected to an external thermocouple to monitor the furnace temperature in real time, ensuring that the parameters meet the standards.

[0031] Among them, the furnace shell assembly 1 is an integrated square structure.

[0032] The furnace shell assembly 1 serves as the main supporting structure. It is made of Q345R material and features an integrated square design to ensure strength and temperature resistance. Meanwhile, the surface temperature is controlled at 65-85℃ through the heat insulation effect of the refractory material assembly 2.

[0033] The refractory material component 2 includes a high-alumina castable layer 201, a lightweight castable layer 202, a ceramic fiberboard layer 203, and multiple high-alumina brick baffles 204. The high-alumina castable layer 201, the lightweight castable layer 202, and the ceramic fiberboard layer 203 are arranged sequentially from the inside to the outside along the interior of the furnace shell component 1. Multiple high-alumina brick baffles 204 are located inside the high-alumina castable layer 201 and are distributed at intervals, and flue gas deflection channels are formed between adjacent high-alumina brick baffles 204.

[0034] The refractory material component 2 is laid on the inner wall of the furnace shell with a thickness of 300-400mm. It consists of a high-alumina castable layer 201, a lightweight castable layer 202, a ceramic fiber board layer 203, and multiple high-alumina brick baffles 204. The high-alumina castable layer 201 and the high-alumina brick baffles 204 have an Al2O3 content of ≥70% and a refractoriness of 1700℃. They can operate stably at high temperatures for a long time and can effectively isolate the high temperature inside the furnace, reducing heat loss. Two to three high-alumina brick baffles 204 are built inside the TO furnace to form a flue gas deflection channel, extending the flow path of the flue gas in the furnace and ensuring that the residence time meets the standard. At the same time, the square structure reduces the overall length of the equipment and achieves a compact design.

[0035] The burner mounting pipe 3 has an axis that forms a 90° angle with the side wall of the furnace shell assembly 1, and a flame baffle is fixedly installed at the inner end of the burner mounting pipe 3.

[0036] The burner installation pipe 3 (pipe specification DN150, wall thickness 5mm, made of 06Cr25Ni20 high temperature resistant steel pipe, pipe welded to furnace shell assembly 1) is set at a 90° angle to the side wall of furnace shell assembly 1, so that the flame can "vertically shoot directly into the combustion chamber of the furnace", ensuring that the flame covers the central area of ​​the combustion chamber, avoiding the flame sticking to the wall (local temperature too high and burns refractory material) or flame deviation (local temperature too low and pollutants are not completely decomposed) caused by the "tilted pipe" of traditional circular furnace. The flame baffle is a circular metal plate fixed to the inner end of the pipe in the furnace, which can "disperse the flame into an umbrella shape" so that the high temperature zone evenly covers the entire combustion chamber, rather than being concentrated at one point, ensuring uniform temperature in the furnace.

[0037] The sight glass assembly 4 includes a connecting pipe and a sight glass. The connecting pipe is welded to the furnace shell assembly 1. The inside of the connecting pipe is provided with an observation end, and the sight glass is fixed to the observation end inside the connecting pipe.

[0038] The sight glass assembly 4 has a DN50 pipe with a wall thickness of 4mm, made of 06Cr25Ni20 high-temperature resistant steel pipe. The sight glass is made of quartz glass. Compressed air or nitrogen is introduced through the pipe to cool the sight glass. The observation end faces into the furnace to observe the combustion and flue gas flow in the furnace.

[0039] There are two pressure tapping pipe assemblies 5 and two thermocouple pipe assemblies 6, which are distributed at intervals along the length of the furnace shell assembly 1.

[0040] The pressure tapping pipe assembly 5 is used to connect to the pressure detection element to monitor the pressure inside the furnace. The pipe specification is DN25, the wall thickness is 3mm, and it is made of 06Cr25Ni20 high-temperature resistant steel pipe. The thermocouple pipe assembly 6 is used to connect to the thermocouple to monitor the temperature inside the furnace. The pipe specification is DN50, the wall thickness is 4mm, and it is made of 06Cr25Ni20 high-temperature resistant steel pipe.

[0041] Among them, the support assembly 7 consists of 4 carbon steel support legs.

[0042] The four carbon steel support legs of the support assembly 7 can support the entire TO furnace, ensuring the stability of the equipment.

[0043] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0044] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0045] The working principle of this utility model is as follows:

[0046] In use, the exhaust gas enters from the furnace inlet and is forced to flow along the baffle channel by the physical obstruction of the high-alumina brick baffle wall 204 in the refractory material component 2. The actual residence time is extended by the path reversal. The other end of the burner installation pipe 3 is connected to the burner, which introduces flames to heat the flue gas to the corresponding temperature. At the same time, the multi-layer refractory material component 2 (high-alumina castable layer 201 withstands high temperatures above 1100℃, lightweight castable layer 202 reduces heat conduction, and ceramic fiber board layer 203 reduces heat dissipation) can effectively isolate the high temperature in the furnace and reduce heat loss. The combustion state and flue gas baffle flow in the furnace can be observed through the sight glass component 4, which facilitates real-time monitoring of equipment operation. The other end of the pressure tapping pipe component 5 is connected to a pressure detection element to monitor the furnace pressure in real time, and the other end of the thermocouple pipe component 6 is connected to a thermocouple to monitor the furnace temperature in real time, ensuring that the parameters meet the standards.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A square baffled TO furnace, characterized in that, include: The furnace shell assembly (1), refractory material assembly (2), burner mounting pipe (3), sight glass assembly (4), pressure tapping pipe assembly (5), thermocouple pipe assembly (6), and support assembly (7) are provided. The refractory material assembly (2) is laid on the inner wall of the furnace shell assembly (1). The burner mounting pipe (3), pressure tapping pipe assembly (5), and thermocouple pipe assembly (6) are all welded to the furnace shell assembly (1). One end of the burner mounting pipe (3) passes through the furnace shell assembly (1) and the refractory material assembly (2) and extends into the combustion chamber inside the furnace. The other end of the burner mounting pipe (3) is externally... The burner is connected, the sight glass assembly (4) is embedded in the side wall of the furnace shell assembly (1), one end of the pressure tapping pipe assembly (5) penetrates the furnace shell assembly (1) and the refractory material assembly (2) and is connected to the interior of the furnace shell assembly (1), and the other end of the pressure tapping pipe assembly (5) is connected to a pressure detection element. One end of the thermocouple pipe assembly (6) penetrates the furnace shell assembly (1) and the refractory material assembly (2) and is connected to the interior of the furnace shell assembly (1), and the other end of the thermocouple pipe assembly (6) is connected to a thermocouple. The support assembly (7) is fixedly connected to the bottom of the furnace shell assembly (1).

2. A square baffled TO furnace according to claim 1, characterized in that, The furnace shell assembly (1) is an integral square structure.

3. A square baffled TO furnace according to claim 1, characterized in that, The refractory material assembly (2) includes a high-alumina castable layer (201), a lightweight castable layer (202), a ceramic fiberboard layer (203), and multiple high-alumina brick baffles (204). The high-alumina castable layer (201), the lightweight castable layer (202), and the ceramic fiberboard layer (203) are arranged sequentially from the inside to the outside along the interior of the furnace shell assembly (1). Multiple high-alumina brick baffles (204) are located inside the high-alumina castable layer (201) and are distributed at intervals. A flue gas deflection channel is formed between adjacent high-alumina brick baffles (204).

4. A square baffled TO furnace according to claim 1, characterized in that, The axis of the burner mounting pipe (3) forms a 90° angle with the side wall of the furnace shell assembly (1), and a flame baffle is fixedly provided at the furnace inner end of the burner mounting pipe (3).

5. A square baffled TO furnace according to claim 1, characterized in that, The sight glass assembly (4) includes a connecting pipe and a sight glass. The connecting pipe is welded to the furnace shell assembly (1). The inside of the connecting pipe is provided with an observation end, and the sight glass is fixed to the observation end inside the connecting pipe.

6. A square baffled TO furnace according to claim 1, characterized in that, The number of pressure tapping pipe assembly (5) and thermocouple pipe assembly (6) are both two, and they are distributed at intervals along the length of the furnace shell assembly (1).

7. A square baffled TO furnace according to claim 1, characterized in that, The support assembly (7) consists of four carbon steel support legs.

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