Flue gas treatment system
By introducing a spray tower, cooling chamber, and adsorption tank into the flue gas treatment system, combined with gas detection and nitrogen injection devices, the problems of poor safety and low efficiency of existing flue gas treatment systems have been solved, achieving efficient and safe flue gas treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BTR NEW MATERIAL GRP CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-28
AI Technical Summary
Existing flue gas treatment systems are unsafe and inefficient in enclosed environments, and cannot effectively handle high-temperature flue gas.
Design a flue gas treatment system including a spray tower, a cooling chamber, and an adsorption tank. Equipped with a spray cooling device, a gas detection component, and a control module, the system detects the flue gas status and adjusts the cooling conditions. Combined with an explosion-proof tank and a nitrogen injection device, it achieves safe and efficient flue gas treatment.
It improves the safety and efficiency of flue gas treatment, reduces the risk of deflagration, and enhances production safety and efficiency.
Smart Images
Figure CN224175676U_ABST
Abstract
Description
Technical Field
[0001] This utility model generally relates to the field of waste gas treatment technology. More specifically, this utility model relates to a flue gas treatment system. Background Technology
[0002] In current industrial production, the use of heating furnaces to process raw materials inevitably generates mixed high-temperature flue gas. If left untreated, this flue gas will directly escape into the work environment, causing environmental pollution due to harmful substances in the emissions. Furthermore, the continuous exposure to high temperatures in the work area directly threatens the occupational health of operators. Currently, the industry commonly uses composite flue gas treatment systems to address this problem and achieve pollution control. Current practical methods include first reducing the flue gas temperature to a safe threshold using cooling devices, then using spray devices to achieve particulate matter deposition, and finally using adsorption devices to trap harmful substances. The entire treatment system must operate within a closed space to ensure treatment efficiency and environmental isolation. However, in current technological solutions, flue gas treatment in closed environments still suffers from poor safety and low efficiency.
[0003] Therefore, there is an urgent need to provide a flue gas treatment system to improve the safety and efficiency of the flue gas treatment process. Utility Model Content
[0004] In order to solve at least one or more of the technical problems mentioned above, this utility model proposes a flue gas treatment system.
[0005] This utility model provides a flue gas treatment system, including: a spray tower having a spray chamber with a spray cooling device installed in the spray chamber for cooling the flue gas to be treated; a cooling chamber having one side connected to the equipment to be treated to receive the flue gas, and the other side connected to the main body of the spray tower to allow the flue gas to be treated to enter the spray tower; an adjustment component and a gas detection component are installed in the cooling chamber; and a control module is provided, with the adjustment component and the gas detection component electrically connected to the control module; the gas detection component can detect the flue gas and control the adjustment component to adjust the cooling conditions inside the chamber through the control module.
[0006] In some embodiments, an explosion-proof tank is also included, which is disposed outside the cooling chamber and contains coolant surrounding the cooling chamber.
[0007] In some embodiments, the gas detection component includes a pressure sensor and a temperature sensor, which are electrically connected to the control module.
[0008] In some embodiments, a liquid level detection component is also included. The liquid level detection component is disposed inside the cooling chamber and electrically connected to the control module, for monitoring the liquid level inside the cooling chamber and sending an adjustment signal to the control module.
[0009] In some embodiments, the adjustment component includes a liquid level adjustment mechanism electrically connected to the control module to adjust the liquid level in the explosion-proof tank in response to a control signal from the control module.
[0010] In some embodiments, the adjustment component includes a nitrogen injection device electrically connected to a control module to inject nitrogen into the cooling chamber in response to control by the control module.
[0011] In some embodiments, the system further includes an adsorption tank connected to the spray tower. The adsorption tank is equipped with an adsorption tank detection component and an adsorption tank nitrogen blowing device. The adsorption tank detection component and the adsorption tank nitrogen blowing device are electrically connected to a control module to adjust the cooling conditions in the adsorption tank.
[0012] In some embodiments, the cooling chamber further includes a flameless explosion venting mechanism disposed on the outer wall of the cooling chamber.
[0013] In some embodiments, a piping assembly is also included, one side of which is connected to a cooling chamber and the other side to a spray tower. The piping assembly includes a spray tower pipe connected to the spray tower, the spray tower pipe having multiple explosion relief openings.
[0014] In some embodiments, the spray tower pipe is provided with a maintenance section that bends at 90° near the spray tower, and the maintenance section has an inspection port.
[0015] The flue gas treatment system provided above, in this embodiment of the utility model, is configured with interconnected spray towers and cooling chambers, with a spray cooling device installed in the spray towers and an adjustment component and a gas detection component installed in the cooling chambers. The adjustment component and the gas detection component are connected to a control module. The gas detection component detects the flue gas and, with the help of the control module, controls the adjustment component to adjust the cooling conditions, thus enabling safe and efficient treatment of flue gas. Attached Figure Description
[0016] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0017] Figure 1 An exemplary top view of a flue gas treatment system according to some embodiments of the present invention is shown;
[0018] Figure 2 An exemplary cross-sectional view of the cooling chamber portion of a flue gas treatment system according to some embodiments of the present invention is shown;
[0019] Figure 3An exemplary cross-sectional view of the spray tower portion of a flue gas treatment system according to some embodiments of the present invention is shown;
[0020] Figure 4 A schematic diagram of the connection structure of the control module portion of a flue gas treatment system according to some embodiments of the present invention is shown.
[0021] Explanation of reference numerals in the attached figures:
[0022] 10 - Spray tower; 11 - Spray chamber; 121 - Air inlet; 123 - Exhaust port; 124 - Liquid drain port; 20 - Cooling chamber; 21 - Explosion relief mechanism; 24 - Nitrogen injection device; 26 - Liquid level adjustment mechanism; 30 - Explosion-proof tank; 31 - Receiving port; 32 - Discharge port; 40 - Adsorption tank; 41 - Adsorption tank nitrogen injection device; 42 - Adsorption tank detection component; 50 - Piping assembly; 51 - Spray tower pipe; 511 - Explosion relief opening; 52 - Maintenance section; 60 - Adjustment component; 70 - Gas detection component; 80 - Control module; 90 - Liquid level detection component. Detailed Implementation
[0023] 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, 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.
[0024] It should be understood that the terms "comprising" and "including" used in the specification and claims of this utility model indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0025] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.
[0026] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."
[0027] This utility model provides a flue gas treatment system, which consists of a spray tower and a cooling chamber connected to each other. The spray tower is equipped with a spray cooling device, and the cooling chamber is equipped with an adjustment component and a gas detection component. The gas detection component detects the flue gas and controls the adjustment component to adjust the cooling conditions, thereby safely treating high-temperature flue gas.
[0028] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0029] See Figure 1 , Figure 3 and Figure 4 , Figure 1 An exemplary top view of a flue gas treatment system according to some embodiments of the present invention is shown. Figure 3 An exemplary cross-sectional view of the spray tower portion of a flue gas treatment system according to some embodiments of the present invention is shown. Figure 4 A schematic diagram of the connection structure of the control module portion of a flue gas treatment system according to some embodiments of the present invention is shown.
[0030] As shown in the figure, in some embodiments, the flue gas treatment system includes a spray tower 10 and a cooling chamber 20 connected to each other. The spray tower 10 has a spray chamber 11, in which a spray cooling device is installed to cool the flue gas to be treated. One side of the cooling chamber 20 is connected to the equipment to be treated to receive the flue gas, and the other side is connected to the main body of the spray tower 10 to allow the flue gas to be treated to enter the spray tower 10. An adjustment component 60 and a gas detection component 70 are installed inside the cooling chamber 20. The flue gas treatment system also includes a control module 80, and the adjustment component 60 and the gas detection component 70 are electrically connected to the control module 80. The gas detection component 70 can detect the flue gas and control the adjustment component 60 to adjust the cooling conditions inside the chamber through the control module 80.
[0031] The spray tower 10 has a hollow tower body and a spray cooling device disposed within the tower body to spray the spray chamber 11 inside. The tower body is made of corrosion-resistant materials such as stainless steel. An air inlet 121 for receiving the flue gas to be treated is provided on the lower side of the tower body, while an exhaust port 123 for discharging the treated gas is provided on the upper side. A drain port 124 for discharging the treated liquid is provided on the bottom side of the tower body. The spray chamber 11 inside the tower body includes multiple layers, and the spray cooling device includes multiple nozzles distributed at different heights within the tower body for uniformly spraying the absorbent liquid. The nozzles are arranged in multiple layers of the spray chamber 11 to ensure sufficient contact between the flue gas and the sprayed liquid droplets.
[0032] See also Figure 1 and Figure 2 , Figure 2 An exemplary cross-sectional view of the cooling chamber portion of a flue gas treatment system according to some embodiments of the present invention is shown. The cooling chamber 20 has a hollow body. One side of the hollow body is connected to the flue gas outlet of the equipment to be treated via pipes or other components to receive the flue gas to be treated, which includes high-temperature and / or dust-laden flue gas generated during ore processing, sorting, drying, etc. The other side of the hollow body is connected to the air inlet 121 of the spray tower 10 via pipes or other components to guide the flue gas into the interior of the spray tower 10 for treatment. Similar to the tower body of the spray tower 10, the cooling chamber 20 is made of corrosion-resistant materials such as stainless steel, forming an airtight hollow structure with a cooling chamber inside. This cooling chamber is used to pre-cool the flue gas to be treated, thereby reducing the processing pressure of the spray tower 10, improving the overall processing efficiency, reducing the probability of combustion and explosion of high-temperature flue gas, and improving system safety.
[0033] The flue gas treatment system also includes a pipe assembly 50, which is connected to the cooling chamber 20 on one side and to the spray tower 10 on the other side. The pipe assembly 50 includes a spray tower pipe 51 connected to the spray tower 10, and the spray tower pipe 51 has multiple explosion relief openings 511. The pipe assembly 50 is used for the transmission of the flue gas to be treated within the system, and includes corrosion-resistant and high-temperature-resistant pipes, as well as valves installed at various nodes of the pipes. In this embodiment, the spray tower pipe 51 has a 90° bend inspection section 52 near the spray tower 10, and an inspection port is provided at this inspection section 52. The inspection port is used for observing and inspecting the interior of the pipe assembly 50 during maintenance, and for performing maintenance on the inside of the pipe through the inspection port, such as cleaning ash and removing blockages.
[0034] In this embodiment, an explosion-proof trough 30 is also included, located outside the cooling chamber 20. The explosion-proof trough 30 is generally formed as a water tank with a surrounding enclosure, which is located around the periphery of the cooling chamber 20. The explosion-proof trough 30 contains coolant surrounding the cooling chamber 20. A receiving port 31 is provided on one side of the cooling chamber 20, and a discharge port 32 is provided on the other side. The side of the chamber with the receiving port 31 faces the coolant in the explosion-proof trough 30 and is at least partially immersed below the surface of the coolant. The discharge port 32 on the other side of the chamber is fixed to a pipe assembly 50 and connected to the spray tower 10 via the pipe assembly 50.
[0035] The coolant in the explosion-proof tank 30 effectively seals the side of the cooling chamber 20 connected to the dust removal equipment, preventing flue gas from overflowing. Furthermore, the coolant efficiently pre-cools the flue gas through heat transfer, reducing the cooling requirements for subsequent processing and lowering the probability of deflagration in the system. Moreover, by installing a liquid circulation device (not shown) within the cooling chamber 20, the coolant can be circulated and replaced, maintaining a stable coolant temperature and further improving cooling efficiency.
[0036] In this embodiment, the cooling chamber 20 further includes a flameless explosion relief mechanism 21, which is disposed on the outer wall of the cooling chamber 20. The flameless explosion relief mechanism 21 includes one or more components such as an explosion relief section, a flow guide section, and a sealing section. Its main body is sealed on an explosion relief port opened on the outer wall of the cooling chamber 20. When a deflagration occurs in the gas inside the cooling chamber 20, the explosion relief section rapidly ruptures after the pressure inside the cooling chamber 20 reaches a preset threshold to relieve the deflagration pressure. The flow guide section is used to guide the deflagration shock wave and airflow out in a directional manner, preventing its disorderly diffusion from affecting the surrounding environment and personnel. By setting up this flameless explosion relief mechanism 21, the system safety can be further improved, the damage caused by deflagration to the overall system can be reduced, and production safety can be improved.
[0037] In this embodiment, the gas detection component 70 includes a pressure sensor and a temperature sensor, both electrically connected to the control module 80. The control module 80 includes logic control elements such as a PLC. The pressure and temperature sensors are respectively located at various detection nodes in components such as the spray tower 10, cooling chamber 20, or pipeline assembly 50 within the system, such as the inner wall of the chamber in direct contact with flue gas or the location of pipeline valves used to control gas flow. The pressure sensor detects the gas pressure within the system, while the temperature sensor detects the temperature of the flue gas within the pipeline system. The pressure and temperature sensors transmit the detected pressure and temperature values to the control module 80, which then processes the received values according to its preset algorithm. For example, it compares the values with preset standard values and determines whether they exceed safe limits. In response to the processing results, the control module 80 can further issue control signals or alarms to other components to automatically or semi-automatically regulate system production, improve production efficiency and safety, and reduce the failure rate during production.
[0038] See you again Figure 2 In this embodiment, a liquid level detection component 90 is also included. The liquid level detection component 90 is disposed within the cooling chamber 20 and electrically connected to the control module 80. It is used to monitor the liquid level within the cooling chamber 20 and send adjustment signals to the control module 80. The adjustment component 60 includes a liquid level adjustment mechanism 26, which is electrically connected to the control module 80 to adjust the liquid level within the explosion-proof tank 30 in response to control signals from the control module 80. The liquid level detection component 90 includes one or more of the following sensing devices for detecting liquid level height: a float level gauge, a metering instrument, etc. This liquid level detection component 90 is disposed on the inner wall or bottom of the cooling chamber 20 to measure the liquid level within the cooling chamber 20 and send corresponding numerical information to the control component. The liquid level adjustment mechanism 26 includes components such as a water pump and coolant pipes. It adjusts the water level around the cooling chamber 20 by driving the water pump to input or discharge coolant into the explosion-proof tank 30, thereby adjusting the cooling effect on the flue gas. That is, when the flue gas temperature is high, the liquid level adjustment mechanism 26 raises the liquid level of the coolant in the explosion-proof tank 30, thereby increasing the contact area between the coolant and the cooling chamber 20 and improving the cooling effect. Conversely, when the flue gas temperature is low, the liquid level adjustment mechanism 26 lowers the liquid level, reducing the contact area between the coolant and the cooling chamber 20 and reducing energy consumption. Through the combined action of the liquid level detection component 90, the liquid level adjustment mechanism 26, the control module 80, and the gas detection component 70, the stability of the gas temperature state within the system can be improved, and system energy consumption can be reduced.
[0039] Furthermore, in this embodiment, the adjustment component 60 includes a nitrogen injection device 24, which is electrically connected to the control module 80 to inject nitrogen into the cooling chamber 20 in response to the control of the control module 80. This nitrogen can act as a protective gas to reduce the concentration of flammable gas components in the flue gas and reduce the oxygen concentration, while also directly reducing the overall temperature of the flue gas, thereby reducing the probability of deflagration. The nitrogen injection device 24 includes an outlet section disposed within the cooling chamber 20 and a nitrogen supply component connected to the outlet section. After the control component issues a control signal in response to the numerical information issued by the gas detection component 70, the nitrogen injection device 24 can inject nitrogen into the cooling chamber 20, and the injection volume of nitrogen can be correlated with the detection result of the gas detection component 70, or the nitrogen injection device 24 can continuously inject nitrogen until the numerical information detected by the gas detection component 70 reaches the preset range of the control component. Thus, the flammable gas state within the cooling chamber 20 can be stably controlled within an acceptable range, further reducing the risk of deflagration.
[0040] See Figure 3 In this embodiment, the flue gas treatment system further includes an adsorption tank 40 connected to the spray tower 10. The adsorption tank 40 is equipped with an adsorption tank detection component 42 and an adsorption tank nitrogen blowing device 41. The adsorption tank detection component 42 and the adsorption tank nitrogen blowing device 41 are electrically connected to the control module 80 to adjust the temperature and gas state within the adsorption tank 40. The adsorption tank 40 is used to store and treat the dust-laden flue gas cooled by the spray tower 10. It is connected to the bottom of the spray tower 10 via a pipe assembly 50. The adsorption tank 40 contains an adsorption liquid to adsorb any remaining dust particles in the dust-laden flue gas. Similar to the gas detection component 70 and liquid level detection component 90 installed in the cooling chamber 20, the adsorption tank detection component 42 includes one or more of the following sensors: pressure sensor, temperature sensor, liquid level sensor, etc. It is used to detect the state of the adsorbent liquid in the adsorption tank 40. In response to the numerical information provided by the adsorption tank detection component 42, the control component controls the adsorption tank nitrogen injection device 41 to inject nitrogen into the adsorption tank 40 to reduce the concentration of combustible gas and reduce the probability of deflagration.
[0041] The flue gas treatment system according to this utility model embodiment is equipped with a cooling chamber including a detection mechanism and a spray tower with a spray cooling device. An adjustment component is installed in the cooling chamber, and the adjustment component and the detection mechanism are connected to the control module. The system can flexibly adjust the treatment conditions according to the flue gas conditions in the system, thereby improving the efficiency and safety of flue gas treatment and reducing energy consumption.
[0042] While various embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover equivalents or alternatives within the scope of these claims.
Claims
1. A flue gas treatment system, characterized in that, include: A spray tower (10) has a spray chamber (11) in which a spray cooling device is installed for cooling the flue gas to be treated. The cooling chamber (20) is connected on one side to the equipment to be treated to receive the flue gas to be treated, and on the other side to the main body of the spray tower (10) to introduce the flue gas to be treated into the spray tower (10). The cooling chamber (20) is equipped with an adjustment component (60) and a gas detection component (70). The control module (80), the adjustment component (60) and the gas detection component (70) are electrically connected to the control module (80); The gas detection component (70) can detect the flue gas and control the adjustment component (60) to adjust the cooling conditions inside the chamber through the control module (80).
2. The flue gas treatment system according to claim 1, characterized in that, It also includes an explosion-proof groove (30), which is located outside the cooling chamber (20), and the explosion-proof groove (30) contains coolant surrounding the cooling chamber (20).
3. The flue gas treatment system according to claim 2, characterized in that, The gas detection component (70) includes a pressure sensor and a temperature sensor, which are electrically connected to the control module (80).
4. The flue gas treatment system according to claim 3, characterized in that, It also includes a liquid level detection component (90), which is installed in the cooling chamber (20) and electrically connected to the control module (80) to monitor the liquid level in the cooling chamber (20) and send adjustment signals to the control module (80).
5. The flue gas treatment system according to claim 4, characterized in that, The adjustment component (60) includes a liquid level adjustment mechanism, which is electrically connected to the control module (80) to adjust the liquid level in the explosion-proof tank (30) in response to the control signal of the control module (80).
6. The flue gas treatment system according to claim 3, characterized in that, The adjustment assembly (60) includes a nitrogen injection device electrically connected to the control module (80) to inject nitrogen into the cooling chamber (20) in response to the control of the control module (80).
7. The flue gas treatment system according to claim 3, characterized in that, It also includes an adsorption tank (40) connected to the spray tower (10). The adsorption tank (40) is equipped with an adsorption tank detection component and an adsorption tank nitrogen blowing device. The adsorption tank detection component and the adsorption tank nitrogen blowing device are electrically connected to the control module (80) to adjust the cooling conditions in the adsorption tank (40).
8. The flue gas treatment system according to claim 1, characterized in that, The cooling chamber (20) also includes a flameless explosion relief mechanism (21), which is disposed on the outer wall of the cooling chamber (20).
9. The flue gas treatment system according to claim 1, characterized in that, It also includes a piping assembly (50) connected on one side to a cooling chamber (20) and on the other side to a spray tower (10). The piping assembly (50) includes a spray tower pipe (51) connected to the spray tower (10) and the spray tower pipe (51) has multiple explosion relief openings.
10. The flue gas treatment system according to claim 9, characterized in that, The spray tower pipe (51) is provided with a maintenance section (52) that bends at 90° near the spray tower (10), and an inspection port is provided at the maintenance section (52).