Cooperative treatment device for multiple pollutants in carbon flue gas

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a carbon flue gas multi-pollutant collaborative treatment device, which is characterized in that a side rod is arranged on one side of a purification tank, a plurality of empty slots are formed in the purification tank, a plurality of positioning blocks connected with the purification tank are arranged on the side rod, and the positioning blocks are respectively positioned on two sides of the empty slots; an annular frame is arranged in the empty groove, a filter plate is arranged in the annular frame, a side block is arranged on one side of the annular frame, a first motor is arranged at the top of the purification tank, a first rotating shaft connected with the side block is arranged at the output end of the first motor, and a flow sensor is in butt joint with an electric signal of a second motor. The heat exchange process can be adjusted in real time according to the smoke flow, and accurate control is achieved. Under different flow working conditions, smoke waste heat can be fully recycled, the energy utilization rate is increased, resource waste is reduced, the production cost of an enterprise is reduced, and the environment-friendly requirements of energy conservation and emission reduction are met.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically a carbon-based flue gas multi-pollutant synergistic treatment device. Background Technology

[0002] With economic development, the demand for carbon materials in numerous fields such as steel, aluminum, and machinery manufacturing continues to grow, driving the continuous expansion of the carbon industry. During carbon production, key processes such as mixing and molding, and calcination generate large amounts of waste gas containing asphalt fumes. These waste gases are complex in composition, containing not only asphalt fumes but also various pollutants such as sulfur dioxide, nitrogen oxides, and heavy metals. If directly emitted without effective treatment, they will cause serious pollution to the atmospheric environment, endangering human health and ecological balance. This necessitates the use of multi-pollutant synergistic treatment devices for carbon flue gas.

[0003] The carbon-based flue gas multi-pollutant synergistic treatment device mainly includes a flue gas collection system, a calcining furnace high-temperature flue gas treatment system, a cascade adsorption system, and a heat energy recovery system. In the heat energy recovery system, the cross-section of the recovery channel is fixed, and the waste gas flow rate within the channel is uncontrollable, which can lead to some waste heat of the waste gas not being fully recovered, resulting in resource waste. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a carbon-based multi-pollutant synergistic treatment device.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a carbon flue gas multi-pollutant synergistic treatment device, including a purification tank and a heat exchange tank, wherein the air inlet end of the purification tank is provided with an air inlet pipe, the air outlet end of the purification tank is connected to the air inlet end of the heat exchange tank through a transfer pipe, and a flow sensor is provided on the transfer pipe.

[0008] The purification tank has a side rod on one side, and multiple empty slots on the purification tank. Multiple positioning blocks that connect to the purification tank are provided on the side rod, and the multiple positioning blocks are respectively located on both sides of the empty slots. An annular frame is provided in the empty slots, and a filter plate is provided in the annular frame. A side block is provided on one side of the annular frame. A first motor is provided on the top of the purification tank, and a first rotating shaft that connects to the side block is provided at the output end of the first motor.

[0009] The heat exchange tank is coiled with heat exchange tubes. A second motor is provided at one end of the heat exchange tank. A second rotating shaft is provided inside the heat exchange tank. A screw ribbon is provided on the second rotating shaft. The edge of the screw ribbon contacts the inner wall of the heat exchange tank and forms an air chamber between the screw ribbon and the inner wall of the heat exchange tank. The output end of the second motor is connected to one end of the second rotating shaft, and the second motor is connected to the flow sensor via an electrical signal.

[0010] Furthermore, an improvement of this invention is that the multiple air chambers are of the same size.

[0011] To ensure the heat exchange effect of the heat exchange tube, the improvement of this utility model is that two positioning rings are symmetrically arranged at both ends of the heat exchange tank, and two insulation plates are symmetrically arranged between the two positioning rings. The heat exchange tube is located inside the insulation plate, and both ends of the heat exchange tube penetrate the insulation plate. The insulation plate has a connecting plate at both ends, and the two connecting plates are fixed by screws.

[0012] Furthermore, an improvement of this utility model is that the air inlet pipe, the adapter pipe, and the air outlet pipe are all made of metal pipes.

[0013] Furthermore, an improvement of this utility model is that both the first motor and the second motor are servo motors.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a carbon-based flue gas multi-pollutant synergistic treatment device, which has the following beneficial effects:

[0016] The flow sensor is connected to the electrical signal of the second motor, enabling the heat exchange process to be adjusted in real time according to the flue gas flow rate, achieving precise control. Under different flow conditions, it ensures that the waste heat of the flue gas is fully recovered and utilized, improving energy efficiency, reducing resource waste, lowering enterprise production costs, and meeting the environmental protection requirements of energy conservation and emission reduction. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a plan view of the present invention;

[0019] Figure 3 This is a schematic diagram of the installation structure of the screw ribbon in this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the filter plate in this utility model;

[0021] In the diagram: 1. Purification tank; 2. Inlet pipe; 3. Transfer pipe; 4. Empty trough; 5. Ring frame; 6. Side block; 7. First motor; 8. First rotating shaft; 9. Filter plate; 10. Side rod; 11. Positioning block; 12. Heat exchange tank; 13. Outlet pipe; 14. Flow sensor; 15. Second motor; 16. Second rotating shaft; 17. Ribbon; 18. Heat exchange tube; 19. Positioning ring; 20. Insulation plate. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The present invention provides a carbon flue gas multi-pollutant synergistic treatment device, including a purification tank 1 and a heat exchange tank 12. The air inlet end of the purification tank 1 is provided with an air inlet pipe 2, and the air outlet end of the purification tank 1 is connected to the air inlet end of the heat exchange tank 12 through a transfer pipe 3. The transfer pipe 3 is provided with a flow sensor 14.

[0024] The purification tank 1 has a side rod 10 on one side, and a plurality of empty slots 4 on the purification tank 1. The side rod 10 has a plurality of positioning blocks 11 that connect to the purification tank 1, and the plurality of positioning blocks 11 are respectively located on both sides of the empty slots 4. An annular frame 5 is provided in the empty slots 4, and a filter plate 9 is provided in the annular frame 5. A side block 6 is provided on one side of the annular frame 5. A first motor 7 is provided on the top of the purification tank 1, and a first rotating shaft 8 that connects to the side block 6 is provided at the output end of the first motor 7.

[0025] The heat exchange tank 12 is wound with heat exchange tubes 18. A second motor 15 is provided at one end of the heat exchange tank 12. A second rotating shaft 16 is provided inside the heat exchange tank 12. A screw ribbon 17 is provided on the second rotating shaft 16. The edge of the screw ribbon 17 contacts the inner wall of the heat exchange tank 12 and forms an air chamber between it and the inner wall of the heat exchange tank 12. The output end of the second motor 15 is connected to one end of the second rotating shaft 16, and the second motor 15 is connected to the flow sensor 14 through an electrical signal.

[0026] In this embodiment, the multiple air chambers are of the same size.

[0027] (I) Flue gas purification process:

[0028] Carbonaceous flue gas containing various pollutants such as asphalt fumes, sulfur dioxide, nitrogen oxides, and heavy metals enters the purification tank 1 through the inlet pipe 2. The purification tank 1 is equipped with multiple filter plates 9, which act like layers of filters to sequentially filter the flue gas, intercepting solid particulate pollutants and some harmful substances attached to the particles, thus initially purifying the flue gas, reducing the pollutant content, and lessening the burden on subsequent treatment processes.

[0029] When the filter plate 9 needs cleaning, the first motor 7 at the top is activated. The first motor 7 acts as a power source, and its output shaft 8 rotates accordingly. The first shaft 8 is connected to the side block 6; the rotation of the first shaft 8 drives the side block 6 to rotate, which in turn drives the annular frame 5 connected to the side block 6 to rotate within the empty slot 4, allowing the filter plate 9 to be removed from the empty slot 4 for easy cleaning or replacement by operators. This maintains the continuous and efficient purification capacity of the purification tank 1. The side rod 10 and multiple positioning blocks 11 enhance the stability of the purification tank 1 during use.

[0030] (II) Heat exchange process:

[0031] The high-temperature flue gas, after preliminary treatment in the purification tank 1, enters the heat exchange tank 12 through the transfer pipe 3. The flow sensor 14 installed on the transfer pipe 3 plays a key role, as it can monitor the gas flow rate in the transfer pipe 3 in real time and transmit the flow data to the second motor 15 in the form of an electrical signal.

[0032] Inside the heat exchange tank 12, the edge of the spiral ribbon 17 on the second rotating shaft 16 contacts the inner wall of the tank, forming a gas chamber between them. Heat exchange tubes 18 are coiled around the heat exchange tank 12, and low-temperature water flows through the tubes. After the high-temperature flue gas enters the gas chamber, it exchanges heat with the heat exchange tubes 18. Heat is transferred from the high-temperature flue gas to the low-temperature water inside the heat exchange tubes 18, raising the water temperature and achieving waste heat recovery from the flue gas.

[0033] When the flow sensor 14 detects an increase in gas flow, it means that more flue gas is entering the heat exchange tank 12 per unit time. To ensure sufficient heat exchange, the second motor 15 reduces the rotational speed of the second shaft 16 after receiving the signal. The reduced speed of the screw conveyor 17 slows the flow of flue gas within the gas chamber, extending its residence time in the heat exchange tank 12, thereby increasing the heat exchange time with the heat exchange tubes 18 and ensuring more heat is absorbed. Conversely, when the flow rate decreases, the second motor 15 increases the rotational speed of the second shaft 16, accelerating the flue gas flow, improving overall heat exchange efficiency, and preventing a decrease in equipment processing capacity due to excessively slow flow.

[0034] In this embodiment, two positioning rings 19 are symmetrically arranged at both ends of the heat exchange tank 12, and two insulation plates 20 are symmetrically arranged between the two positioning rings 19. The heat exchange tube 18 is located inside the insulation plate 20, and both ends of the heat exchange tube 18 penetrate the insulation plate 20. The insulation plate 20 has a butt plate at both ends, and the two butt plates are fixed by screws.

[0035] (III) Insulation and Equipment Connection:

[0036] Positioning rings 19 symmetrically arranged at both ends of the heat exchange tank 12 are used to fix the position of the insulation plates 20. The two insulation plates 20 enclose the heat exchange tube 18, reducing heat loss during the heat exchange process. The mating plates at both ends of the insulation plates 20 are fixed with screws to ensure the sealing and stability of the insulation structure. The inlet pipe 2, the transfer pipe 3, and the outlet pipe 13 are all made of metal pipes. Due to their good strength and corrosion resistance, they can adapt to high-temperature flue gas environments containing pollutants, ensuring stable flue gas transportation between various equipment.

[0037] The multi-filter plate 9 design enhances the purification tank 1's ability to intercept various pollutants in carbon flue gas, improves the purification effect, effectively reduces pollutant emissions, lowers the degree of pollution to the atmospheric environment, and protects human health and ecological balance.

[0038] The design of filter plate 9, which allows for easy removal, cleaning, or replacement, reduces the difficulty of equipment maintenance and saves maintenance time and costs. Operators can perform maintenance on filter plate 9 without complicated procedures, ensuring the long-term stable operation of purification tank 1 and improving the practicality and reliability of the equipment.

[0039] The flow sensor 14 is electrically connected to the second motor 15, enabling the heat exchange process to be adjusted in real time according to the flue gas flow rate, achieving precise control. Under different flow conditions, it ensures that the waste heat of the flue gas is fully recovered and utilized, improving energy utilization efficiency, reducing resource waste, lowering enterprise production costs, and meeting the environmental protection requirements of energy conservation and emission reduction.

[0040] The uniform gas chamber design ensures that the flue gas flows relatively evenly within the heat exchange tank 12, enabling each part of the flue gas to achieve a more consistent heat exchange effect. This avoids insufficient local heat exchange due to differences in gas chambers and further optimizes the waste heat recovery efficiency.

[0041] The insulation plate 20 wraps around the heat exchange tube 18, greatly reducing heat loss to the external environment and improving the heat exchange efficiency of the heat exchange tube 18. More heat is effectively transferred to the water inside the tube, improving the quality of waste heat recovery and making the recovered heat energy more valuable.

[0042] In this embodiment, the air inlet pipe 2, the adapter pipe 3, and the air outlet pipe 13 are all made of metal.

[0043] In this embodiment, both the first motor 7 and the second motor 15 are servo motors.

[0044] The metal inlet pipe 2, adapter pipe 3, and outlet pipe 13, with their high strength and corrosion resistance, can operate stably in harsh flue gas environments, reducing the risk of leakage due to pipe damage and extending the service life of the equipment. Meanwhile, the stable installation of the insulation plate 20 and the screw fixing method of the connecting plate enhance the overall structural stability of the equipment, ensuring safe and reliable operation.

[0045] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] 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.

Claims

1. A carbon flue gas multi-pollutant co-control device, comprising a purification tank (1) and a heat exchange tank (12), characterized in that: The air inlet end of the purification tank (1) is provided with an air inlet pipe (2), the air outlet end of the purification tank (1) is communicated with the air inlet end of the heat exchange tank (12) through an adapter pipe (3), and the adapter pipe (3) is provided with a flow sensor (14); The purification tank (1) is provided with a side rod (10) on one side, the purification tank (1) is provided with a plurality of air grooves (4), the side rod (10) is provided with a plurality of positioning blocks (11) connected with the purification tank (1), and the plurality of positioning blocks (11) are located on both sides of the air groove (4) respectively, the air groove (4) is provided with an annular frame (5), the annular frame (5) is provided with a filter plate (9), one side of the annular frame (5) is provided with a side block (6), the top of the purification tank (1) is provided with a first motor (7), the output end of the first motor (7) is provided with a first rotating shaft (8) connected with the side block (6); The heat exchange tank (12) is provided with a heat exchange pipe (18) wound thereon, one end of the heat exchange tank (12) is provided with a second motor (15), the heat exchange tank (12) is provided with a second rotating shaft (16) therein, the second rotating shaft (16) is provided with a spiral belt (17), the edge of the spiral belt (17) contacts the inner wall of the heat exchange tank (12), and an air chamber is formed between the edge of the spiral belt (17) and the inner wall of the heat exchange tank (12), one end of the second rotating shaft (16) is connected with the output end of the second motor (15), and the second motor (15) and the flow sensor (14) are connected through electrical signals.

2. The carbonaceous flue gas multi-pollutant co-control device according to claim 1, characterized in that: The sizes of the plurality of air chambers are the same.

3. The carbonaceous flue gas multi-pollutant co-control device according to claim 2, characterized in that: The heat exchange tank (12) is provided with two positioning rings (19) symmetrically arranged at both ends, two heat preservation plates (20) are symmetrically arranged between the two positioning rings (19), the heat exchange pipe (18) is located in the heat preservation plate (20), and the two ends of the heat exchange pipe (18) penetrate the heat preservation plate (20).

4. The carbonaceous flue gas multi-pollutant co-control device according to claim 3, characterized in that: The two ends of the heat preservation plate (20) are provided with butt plates, and the two butt plates are fixed by screws.

5. The carbonaceous flue gas multi-pollutant co-control device according to claim 4, characterized in that: The air inlet pipe (2), the adapter pipe (3) and the air outlet pipe (13) are all metal pipes.

6. The carbonaceous flue gas multi-pollutant co-control device according to claim 5, characterized in that: The first motor (7) and the second motor (15) are both servo motors.

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