Environment-friendly integrated desulfurization device
By using baking soda powder to react fully with high-temperature flue gas, sodium hydroxide is generated, which in turn reacts with sulfur dioxide to form sodium sulfate. This solves the problems of high dependence on limestone and equipment blockage in existing technologies, and achieves low-cost and stable desulfurization.
Patent Information
- Application Number
- CN202423139210.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing desulfurization units are highly dependent on limestone, and market fluctuations affect cost stability. Furthermore, the gypsum generated after the reaction may cause equipment blockage, increasing maintenance costs.
Baking soda powder is used as a desulfurizing agent. By setting up installation components and powder spraying discs, a fan drives the gas through a spiral tube to allow the baking soda powder to fully contact and react with the high-temperature flue gas, generating sodium hydroxide which reacts with sulfur dioxide to form sodium sulfate.
It reduces desulfurization costs, improves the utilization rate of baking soda powder, avoids equipment blockage, has a user-friendly structural design, is easy to operate, and produces few by-products.
Smart Images

Figure CN223530219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of desulfurization equipment technology, and in particular to an environmentally friendly integrated desulfurization device. Background Technology
[0002] The integrated desulfurization, denitrification, and dust removal environmental protection device is widely applicable to various large, medium, and small coal-fired, oil-fired, and gas-fired boilers, as well as furnaces, kilns, and sintering machines in industries such as thermal power generation, steel smelting, printing and dyeing, cement and chemical industry, mining and manufacturing, leather tanning, and food and beverage, effectively solving the problems of difficult flue gas emissions and air pollution.
[0003] In the actual use of existing desulfurization devices, workers need to introduce a mixture of limestone and water into the desulfurization tower, then introduce gas into the desulfurization tower, and then use a pump to spray the mixture of limestone and water into contact with the flue gas, further absorbing the sulfur dioxide in the gas and generating calcium sulfate and calcium sulfite, thereby achieving the purpose of desulfurizing the flue gas.
[0004] The above-mentioned operation process is highly dependent on limestone. Market fluctuations may affect the desulfurization cost and stability. In addition, the gypsum generated after the reaction may precipitate, leading to equipment blockage and increased maintenance costs. Therefore, it is necessary to improve the existing equipment by using baking soda powder to desulfurize the flue gas. Utility Model Content
[0005] The purpose of this utility model is to provide an environmentally friendly integrated desulfurization device to solve the problems mentioned in the background art.
[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0007] An environmentally friendly integrated desulfurization device, comprising
[0008] A storage cylinder, wherein a desulfurization cylinder is fixedly connected to the upper end of the storage cylinder, and the desulfurization cylinder and the storage cylinder are connected in communication.
[0009] An inclined guide plate is fixedly installed on the inner wall of the storage cylinder, and a discharge component is provided on one side of the lower end of the inclined guide plate.
[0010] The air inlet chamber has a first through slot on the lower outer wall of the desulfurization cylinder, and one end of the air inlet chamber is connected to the first through slot.
[0011] The exhaust chamber has a second through slot on the outer wall of the upper end of the desulfurization cylinder, and one end of the exhaust chamber is connected to the second through slot.
[0012] The powder spraying disc is located inside the desulfurization cylinder and between the air inlet chamber and the air outlet chamber. The bottom wall of the powder spraying disc is connected with several powder spraying heads.
[0013] A conveying assembly, wherein the conveying assembly is disposed on one side outside the storage cylinder;
[0014] The mounting assembly includes a spiral tube, an mounting slot is provided on the upper wall of the powder spraying disc, the spiral tube is connected to the mounting slot, and a plurality of airflow holes are provided on the outer wall of the spiral tube.
[0015] Preferably, a demister is provided between the exhaust chamber and the powder spraying disc, and the demister is wavy.
[0016] Preferably, the discharge assembly includes a discharge pipe and a valve, one end of the discharge pipe is connected to the outer wall of the storage cylinder, and the valve is disposed on the discharge pipe.
[0017] Preferably, the outer wall of the storage cylinder is connected to a feed pipe, and a sealing plug is fastened to the end of the feed pipe.
[0018] Preferably, the conveying assembly includes a pump, a first conveying pipe, and a second conveying pipe. The pump is fixedly disposed on one side outside the storage cylinder. The two ends of the first conveying pipe are respectively connected to the outer wall of the storage cylinder and the outer wall of the pump. The two ends of the second conveying pipe are respectively connected to one end of the pump and the outer wall of the powder spraying disc.
[0019] Preferably, the installation assembly further includes a fan, which is located on one side outside the storage cylinder. The fan outlet is provided with an air guide pipe, and the end of the air guide pipe away from the fan is connected to one end of the spiral tube.
[0020] Compared with the prior art, this utility model has the following advantages:
[0021] To facilitate the full decomposition of baking soda powder and its reaction with sulfur dioxide in flue gas, this invention incorporates an installation component. In practical use, personnel drive a fan to deliver gas through a duct to the inside of a spiral tube, where the sprayed baking soda powder expands through airflow holes, allowing for full contact and reaction with the high-temperature flue gas. The design is user-friendly. Attached Figure Description
[0022] Figure 1 This is a schematic cross-sectional view of an integrated environmental desulfurization device.
[0023] Figure 2 This is a schematic diagram of the external overall structure of an integrated environmental desulfurization device.
[0024] Figure 3 This is a schematic diagram of the spiral tube structure of an environmentally friendly integrated desulfurization device.
[0025] In the diagram: 1. Storage cylinder; 2. Desulfurization cylinder; 3. Inclined guide plate; 4. Air inlet chamber; 5. Exhaust chamber; 6. Powder spraying disc; 7. Demisting plate; 11. Discharge pipe; 12. Valve; 13. Feed pipe; 14. Sealing plug; 15. Pump; 16. First conveying pipe; 17. Second conveying pipe; 18. Spiral tube; 19. Airflow hole; 20. Fan; 21. Air guide duct. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Example 1:
[0028] Please see Figures 1-3 As shown, this utility model is an environmentally friendly integrated desulfurization device, including...
[0029] Storage cylinder 1, with desulfurization cylinder 2 fixedly connected to the upper end of storage cylinder 1, and desulfurization cylinder 2 and storage cylinder 1 are connected in communication;
[0030] Inclined guide plate 3 is fixedly installed on the inner wall of storage cylinder 1, and a discharge component is provided on one side of the lower end of inclined guide plate 3;
[0031] The air inlet chamber 4 and the desulfurization cylinder 2 have a first through slot on the lower outer wall of the air inlet chamber 4, and one end of the air inlet chamber 4 is connected to the first through slot.
[0032] The exhaust chamber 5 and the desulfurization cylinder 2 have a second through slot on the upper outer wall, and one end of the exhaust chamber 5 is connected to the second through slot.
[0033] The powder spraying disc 6 is located inside the desulfurization cylinder 2 and between the air inlet chamber 4 and the exhaust chamber 5. Several powder spraying heads are connected to the bottom wall of the powder spraying disc 6.
[0034] A conveying assembly is disposed on one side outside the storage cylinder 1;
[0035] The mounting assembly includes a spiral tube 18, an mounting slot is provided on the upper wall of the powder spraying disc 6, the spiral tube 18 is connected to the mounting slot, and a number of airflow holes 19 are provided on the outer wall of the spiral tube 18.
[0036] A demister 7 is provided between the exhaust chamber 5 and the powder spraying disc 6. The demister 7 is wavy.
[0037] By setting a wavy demister plate 7, it is easy to remove water vapor from the desulfurized gas.
[0038] The discharge assembly includes a discharge pipe 11 and a valve 12. One end of the discharge pipe 11 is connected to the outer wall of the storage cylinder 1, and the valve 12 is installed on the discharge pipe 11.
[0039] The outer wall of the storage cylinder 1 is connected to a feed pipe 13, and a sealing plug 14 is fastened to the end of the feed pipe 13.
[0040] The conveying assembly includes a pump 15, a first conveying pipe 16 and a second conveying pipe 17. The pump 15 is fixedly installed on one side of the outside of the storage cylinder 1. The two ends of the first conveying pipe 16 are respectively connected to the outer wall of the storage cylinder 1 and the outer wall of the pump 15. The two ends of the second conveying pipe 17 are respectively connected to one end of the pump 15 and the outer wall of the powder spraying disc 6.
[0041] Specifically, before desulfurization, the staff adds baking soda powder into the storage cylinder 1 through the feed pipe 13. Then, the staff introduces high-temperature flue gas into the desulfurization cylinder 2 through the air inlet chamber 4 and starts the pump 15. Through the action of the pump 15, the baking soda powder is sprayed out through the powder spraying disc 6. Under the action of the high-temperature flue gas, it is decomposed and generates sodium hydroxide, which reacts with sulfur dioxide in the flue gas to achieve the desulfurization effect.
[0042] Its desulfurization cost is low, making it easy to widely use.
[0043] The mounting components also include a fan 20, which is located on the outside of the storage cylinder 1. The fan 20 has an air duct 21 at its air outlet, and the end of the air duct 21 away from the fan 20 is connected to one end of the spiral tube 18.
[0044] As can be seen from the above, in order to facilitate the full decomposition of baking soda powder and its reaction with sulfur dioxide in flue gas, an installation component is set up. In actual use, the operator drives the fan 20 to deliver the gas through the air duct 21 to the inside of the spiral tube 18, and further expands the sprayed baking soda powder through the airflow hole 19, so as to facilitate full contact and reaction with the high-temperature flue gas. The structural design is user-friendly.
[0045] Example 2: Applying this device to a real-world scenario, the sodium bicarbonate desulfurization process mainly utilizes the reaction of sodium bicarbonate (NaHCO3) with sulfur dioxide (SO2) in the gas at high temperature to achieve desulfurization. The reaction principle is as follows:
[0046] Baking soda decomposes under high temperature conditions, releasing carbon dioxide (CO2) and water (H2O), while producing sodium hydroxide (NaOH). The sodium hydroxide further reacts with sulfur dioxide in the gas to form sodium sulfate (Na2SO4). Subsequently, sodium sulfite (Na2SO3) is further oxidized to form sodium sulfate (Na2SO4). This invention further improves the utilization rate of baking soda powder in the reaction process by setting up installation components. Baking soda is an inexpensive and readily available raw material, and the baking soda desulfurization process is mild, simple to operate, and produces few byproducts.
[0047] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.
[0048] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.
[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0052] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0053] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An environmentally friendly integrated desulfurization device, characterized in that: include Storage cylinder (1), with a desulfurization cylinder (2) fixedly connected to the upper end of the storage cylinder (1), and the desulfurization cylinder (2) and the storage cylinder (1) are connected in communication; Inclined guide plate (3), the inclined guide plate (3) is fixedly installed on the inner wall of the storage cylinder (1), and a discharge component is provided on one side of the lower end of the inclined guide plate (3); The air inlet chamber (4) has a first through slot on the lower outer wall of the desulfurization cylinder (2), and one end of the air inlet chamber (4) is connected to the first through slot. The exhaust chamber (5) has a second through slot on the upper outer wall of the desulfurization cylinder (2), and one end of the exhaust chamber (5) is connected to the second through slot. The powder spraying disc (6) is located inside the desulfurization cylinder (2) and between the air inlet chamber (4) and the exhaust chamber (5). The bottom wall of the powder spraying disc (6) is connected with several powder spraying heads. A conveying assembly is disposed on one side outside the storage cylinder (1); The mounting assembly includes a spiral tube (18), the upper wall of the powder spraying disc (6) is provided with a mounting slot, the spiral tube (18) is connected to the mounting slot, and the outer wall of the spiral tube (18) is provided with a plurality of airflow holes (19).
2. The integrated environmental desulfurization device according to claim 1, characterized in that: A demisting plate (7) is provided between the exhaust chamber (5) and the powder spraying plate (6), and the demisting plate (7) is wavy.
3. The integrated environmental desulfurization device according to claim 1, characterized in that: The discharge assembly includes a discharge pipe (11) and a valve (12). One end of the discharge pipe (11) is connected to the outer wall of the storage cylinder (1), and the valve (12) is disposed on the discharge pipe (11).
4. The integrated environmental desulfurization device according to claim 1, characterized in that: The outer wall of the storage cylinder (1) is connected to a feed pipe (13), and a sealing plug (14) is fastened to the end of the feed pipe (13).
5. The integrated environmental desulfurization device according to claim 1, characterized in that: The conveying assembly includes a pump (15), a first conveying pipe (16) and a second conveying pipe (17). The pump (15) is fixedly installed on one side outside the storage cylinder (1). The two ends of the first conveying pipe (16) are respectively connected to the outer wall of the storage cylinder (1) and the outer wall of the pump (15). The two ends of the second conveying pipe (17) are respectively connected to one end of the pump (15) and the outer wall of the powder spraying disc (6).
6. The integrated environmental desulfurization device according to claim 1, characterized in that: The installation assembly also includes a fan (20), which is located on the outside of the storage cylinder (1). The fan (20) has an air duct (21) at its air outlet, and the end of the air duct (21) away from the fan (20) is connected to one end of the spiral tube (18).