Desulfurizing tower for treating strontium carbonate production waste gas

Abstract

The utility model relates to the technical field of chemical production equipment, in particular to a desulfurizing tower for treating waste gas generated in strontium carbonate production, annular baffles are arranged in a desulfurizing tower body, the annular baffles are uniformly distributed along the axis direction of the desulfurizing tower, and each baffle is in an inverted cone shape. After waste gas enters the desulfurizing tower body through the gas inlet pipe arranged at the lower end of the desulfurizing tower body, through the structural design, the turbulence degree on a waste gas ascending path can be increased, the contact area between the waste gas and an alkaline solution in the desulfurizing tower body is increased, and it is ensured that when the waste gas passes through the baffle, the waste gas is forced to stay in the tower for a longer time; the contact opportunity with the alkaline solution is increased, and the N spraying branch pipes connected with the spraying main pipe are arranged below the annular baffle. It is ensured that alkaline liquid can be evenly distributed on each stage of baffle, and the gas-liquid contact efficiency is improved to the maximum extent. Through the structure, full combination reaction of waste gas and alkaline liquid can be improved, the waste gas treatment efficiency is improved, and the sulfur content of the waste gas is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical production equipment, specifically, relates to a desulfurization tower for strontium carbonate production waste gas treatment. BACKGROUND

[0002] Strontium and strontium salt are widely used in electronic, chemical, metallurgical, military, functional material and pyrotechnic manufacturing fields. Celestine is the main strontium ore raw material for producing various strontium salt compounds, and a large amount of waste residue and waste gas is generated in the strontium salt production process. The main component of waste gas is SO2. In order to avoid air pollution caused by direct emission of SO2 gas, a desulfurization tower is usually used for desulfurization treatment of waste gas. When the desulfurization tower is working, alkaline liquid needs to be sprayed to fully react with the liquid in the desulfurization tower, so as to remove SO2 in the waste gas. The existing desulfurization tower usually adopts a straight line type for the path of waste gas, and the waste gas and alkaline liquid cannot fully react, so that the treated waste gas cannot reach the standard value. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art. Therefore, the utility model provides a desulfurization tower for strontium carbonate production waste gas treatment, which can fully react with waste gas and alkaline liquid, improve the treatment efficiency of waste gas, and reduce the sulfur content of waste gas.

[0004] The desulfurization tower for strontium carbonate production waste gas treatment according to the utility model comprises:

[0005] A desulfurization tower body is provided with N annular baffles inside, the N annular baffles are linearly arranged along the axis direction of the desulfurization tower body, the annular baffles are in an inverted conical structure and are provided with an opening at the central position; wherein N is greater than or equal to 2; an exhaust port is arranged at the upper end of the desulfurization tower body; and an air inlet pipe is arranged at the lower end of the desulfurization tower body.

[0006] A spraying device is provided with a spraying main pipe and N spraying branch pipes communicated with the spraying main pipe, each spraying branch pipe is arranged below the corresponding annular baffle.

[0007] According to some embodiments of the utility model, the spraying branch pipe comprises a connecting pipe section and an annular pipe section, the axis of the connecting pipe section is horizontally arranged, one end of the connecting pipe section is communicated with the spraying main pipe, and the other end of the connecting pipe section is communicated with the annular pipe section.

[0008] According to some embodiments of the utility model, an atomizing nozzle is arranged on the annular pipe section.

[0009] According to some embodiments of the present application, the normal line of the annular baffle and the axis have an included angle β, wherein 45°≤β≤65°.

[0010] According to some embodiments of the present application, an annular rib is arranged on the annular baffle.

[0011] According to some embodiments of the present application, a corrosion-resistant coating is arranged on the annular baffle.

[0012] According to some embodiments of the present application, an operating platform is arranged at the upper end of the desulfurization tower body.

[0013] According to some embodiments of the present application, a sulfur dioxide alarm is arranged at the exhaust port.

[0014] According to some embodiments of the present application, the axis of the gas inlet pipe is tangent to the inner peripheral wall of the desulfurization tower body.

[0015] A desulfurization tower for treating waste gas in strontium carbonate production according to an embodiment of the present application has at least the following

[0016] Advantages:

[0017] According to the scheme of the present application, an annular baffle is arranged in the desulfurization tower body, and the annular baffles are uniformly distributed along the axis direction of the desulfurization tower, and each baffle has an inverted conical shape. After the waste gas enters the desulfurization tower body through the gas inlet pipe arranged at the lower end of the desulfurization tower body, the design of the present structure can increase the turbulence degree of the waste gas rising path, increase the contact area of the waste gas and the alkaline solution in the desulfurization tower body, and ensure that the flow direction of the waste gas changes when the waste gas passes through the baffle, forcing the waste gas to stay in the tower for a longer time, increasing the contact opportunity with the alkaline solution. The design of the opening at the central position of the annular baffle allows the waste gas to vertically rise to the next baffle through the opening, rather than completely spreading horizontally, maintaining a certain airflow continuity and stability. The spraying device is responsible for providing alkaline liquid, and N spraying branch pipes connected to the spraying main pipe correspond to each annular baffle. Such a design ensures that the alkaline liquid can be uniformly distributed on each level of the baffle and contact with the waste gas from bottom to top in a reverse direction, maximizing the gas-liquid contact efficiency. Through the present structure, the waste gas and the alkaline liquid can be fully combined and reacted, the treatment efficiency of the waste gas can be improved, and the sulfur content of the waste gas can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structural schematic view of the present application is shown in the figure.

[0019] Figure 2 A sectional structural schematic view of the desulfurization tower body of the present application is shown in the figure.

[0020] Figure 3It is a partial structure amplification schematic view of the bottom of the desulfurization tower body of the utility model;

[0021] Figure 4 It is a partial structure schematic view of the spraying device of the utility model;

[0022] Figure 5 It is a structure schematic view of the annular baffle of the utility model.

[0023] In the drawings,

[0024] 100-desulfurization tower body, 110-annular baffle, 111-annular rib, 120-exhaust port, 130-air inlet pipe, 140-working platform;

[0025] 200-spraying device, 210-spraying main pipe, 220-spraying branch pipe, 221-connection pipe section, 222-annular pipe section, 230-atomizing nozzle. DETAILED DESCRIPTION

[0026] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0027] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of the indication of up and down, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as limiting the utility model.

[0028] In the description of the utility model, more than two means more than two. If there is a description of the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0029] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0030] Referring to Figures 1 to 5The utility model discloses a desulfurizing tower for strontium carbonate production waste gas treatment, and the desulfurizing tower for strontium carbonate production waste gas treatment includes desulfurizing tower body 100 and spraying device 200. Wherein, N annular baffle 110 are arranged in the desulfurizing tower body 100, and the N annular baffles 110 are linearly arranged along the axis direction of the desulfurizing tower body 100, the annular baffle 110 is inverted conical structure and is provided with an opening at the central position, wherein, N is equal to or greater than 2, the upper end of the desulfurizing tower body 100 is provided with the exhaust port 120, and the lower end of the desulfurizing tower body 100 is provided with the air inlet pipe 130, the spraying device 200 is provided with the spraying main pipe 210 and the N spraying branch pipes 220 that are communicated with the spraying main pipe 210, and each spraying branch pipe 220 is arranged below the annular baffle 110 corresponding to the annular baffle 110. Specifically, in the embodiment, the annular baffle 110 is arranged in the desulfurizing tower body 100, and the annular baffles 110 are uniformly distributed along the axis direction of the desulfurizing tower body 100, and each baffle is inverted conical shape, in the embodiment, the number of annular baffles 110 needs to be determined according to the design height and the design radius of the desulfurizing tower body 100. Specifically, in the embodiment, the number of annular baffles 110 is five. When working, after the waste gas enters the desulfurizing tower body 100 through the air inlet pipe 130 arranged at the lower end of the desulfurizing tower body 100, the design of the structure can increase the turbulence degree on the ascending path of the waste gas, improve the contact area of the waste gas and the alkaline solution in the desulfurizing tower body 100, and ensure that the flow direction of the waste gas changes when passing through the baffle, force the waste gas to stay in the tower for a longer time, increase the contact opportunity with the alkaline solution, the annular baffle 110 is provided with an opening at the central position, which allows the waste gas to vertically rise to the next baffle layer through the opening, instead of completely horizontal diffusion, and maintains a certain airflow continuity and stability. The spraying device 200 is responsible for providing alkaline liquid, in the embodiment, the alkaline liquid is mainly sodium hydroxide solution, and the N spraying branch pipes 220 connected with the spraying main pipe 210 correspond to each annular baffle 110 respectively. Such design ensures that the alkaline liquid can be uniformly distributed on each annular baffle 110 and contact with the waste gas from bottom to top in reverse, maximizing the gas-liquid contact efficiency. Through the structure, the waste gas and the alkaline liquid can be fully combined and reacted, the treatment efficiency of the waste gas is improved, and the sulfur content of the waste gas is reduced. Specifically, when working, after the waste gas containing SO enters the desulfurizing tower body 100 from the air inlet pipe 130 at the bottom of the desulfurizing tower body 100, it first passes through the bottommost annular baffle 110 and meets the alkaline liquid sprayed from the lower spraying branch pipe 220. The SO in the waste gas is dissolved in the alkaline liquid and absorbed through chemical reaction. As the waste gas continuously rises, it passes through each annular baffle 110 in turn, and each time it passes through is accompanied by spraying of the alkaline liquid, until the purified gas is finally discharged from the top exhaust port 120.In this embodiment, through reasonable baffle design and precise spraying strategy, the desulfurization tower body 100 can effectively improve the SO absorption efficiency, reduce the pollutant content in the exhaust gas, and meet the requirements of environmental protection regulations. In addition, the design also helps to reduce energy consumption and operating costs, and improves the economy and sustainability of the entire desulfurization system.

[0031] In some embodiments of the present application, the spray branch pipe 220 includes a connecting pipe section 221 and an annular pipe section 222. The axis of the connecting pipe section 221 is horizontally arranged, one end of the connecting pipe section 221 is communicated with the spray main pipe 210, and the other end of the connecting pipe section 221 is communicated with the annular pipe section 222. In this embodiment, the design of the spray device 200 adopts a segmented structure composed of the connecting pipe section 221 and the annular pipe section 222. The purpose of this design is to better adapt to the space structure and spraying requirements inside the desulfurization tower body 100. Specifically, the main function of the connecting pipe section 221 is to serve as a bridge between the spray main pipe 210 and the annular pipe section 222, responsible for transmitting alkaline liquid from the main pipeline to each layer of spray points. Its axis is horizontally arranged to ensure that the alkaline liquid can be smoothly and quickly delivered to the designated position without being affected by gravity. One end of the connecting pipe section 221 is tightly communicated with the spray main pipe 210, and the other end is seamlessly connected with the annular pipe section 222, forming a complete liquid delivery channel. The annular pipe section 222 is laid around the periphery of the desulfurization tower body 100, forming a closed ring along the edge of the annular baffle 110 for uniform distribution of alkaline liquid. It ensures that the alkaline liquid can uniformly cover the entire annular baffle 110 and the area surrounded by the desulfurization tower body 100, improving the gas-liquid contact efficiency.

[0032] In some embodiments of the present application, the annular pipe section 222 is provided with atomizing nozzles 230. The pipe wall of the annular pipe section 222 is provided with a plurality of atomizing nozzles 230, and all the atomizing nozzles 230 are collectively directed to the central area inside the desulfurization tower body 100; the atomizing nozzles 230 can convert the alkaline liquid into fine mist particles; thereby providing contact reaction between the alkaline liquid and the exhaust gas.

[0033] In some embodiments of the utility model, the normal line of annular baffle 110 and the axis have included angle beta, wherein, 45 ° <= beta <= 65 °. Specifically, in the embodiment, the included angle beta between the normal line of annular baffle 110 and the axis is set in the range of 45 ° to 65 °, which is based on the optimization of gas-liquid contact efficiency and fluid mechanics. Through the design of the structure, the turbulent effect can be increased: when the exhaust gas passes through the annular baffle 110, the brim-shaped arrangement of the baffle makes the airflow produce stronger turbulent effect when impacting the baffle. The contact area of gas and alkaline liquid can be increased, thereby improving the absorption efficiency of SO and other harmful gases. The selection of the included angle directly affects the degree of change of the direction of the exhaust gas flow. The inclination angle of 45 ° to 65 ° balances the needs of smooth turning of the guided airflow and generating sufficient disturbance, which can effectively guide the exhaust gas to move upward along the tower body direction, and at the same time, does not cause excessive energy loss. The appropriate inclination angle design helps the alkaline liquid to spread more uniformly on the baffle surface, avoids the occurrence of uneven distribution phenomenon, and ensures that all areas can participate in the effective gas-liquid exchange reaction process.

[0034] In some embodiments of the utility model, annular ribs 111 are arranged on the annular baffle 110. The annular ribs 111 increase the overall rigidity of the baffle, so that it is not easy to deform or damage when bearing high pressure difference, vibration or physical impact, prolonging the service life. Especially in large desulfurization towers, the size of the annular baffle 110 is large, and the influence of self-weight and external load is more significant. Through the design of the structure, the service life of the annular baffle 110 can be improved.

[0035] In some embodiments of the utility model, a corrosion-resistant coating is arranged on the annular baffle 110. In the embodiment, the annular baffle 110 is usually made of metal material. While the desulfurization tower body 100 is filled with strong corrosive alkaline liquid, the corrosion-resistant coating arranged on the annular baffle 110 can improve the service life of the annular baffle 110. Specifically, in the embodiment, the corrosion-resistant coating can adopt alkyd resin paint, which is a kind of anticorrosive paint generated by the reaction of two components of resin and anhydride, and has excellent weather resistance and corrosion resistance.

[0036] In some embodiments of the utility model, a working platform 140 is arranged at the upper end of the desulfurization tower body 100. By arranging the working platform 140 on the desulfurization tower body 100, the daily maintenance and maintenance of the desulfurization tower body 100 can be facilitated. Referring to Figure 1 In the embodiment, the desulfurization tower body 100 can be provided with two working platforms 140.

[0037] In some embodiments of the present application, a sulfur dioxide alarm is arranged at the exhaust port 120. Arranging a sulfur dioxide alarm at the exhaust port 120 of the desulfurization tower body 100 is an important safety monitoring measure to monitor and ensure that the environmental air quality meets the environmental protection standards in real time. In the present embodiment, the sulfur dioxide alarm can use advanced gas detection technologies such as electrochemical sensors, infrared absorption spectroscopy or ultraviolet fluorescence method to accurately measure the concentration of SO in the exhaust gas.

[0038] In some embodiments of the present application, the axis of the gas inlet pipe 130 is tangent to the inner peripheral wall of the desulfurization tower body 100. Through the design of the present structure, the exhaust gas can enter tangentially and can produce a rotating motion trend in the desulfurization tower body 100, which helps the gas to be more evenly distributed in the space inside the desulfurization tower body 100, especially in the bottom area of the desulfurization tower body 100. This increases the opportunity for gas-liquid contact in the initial stage and improves the preliminary desulfurization efficiency. The rotating airflow generated by the tangential inlet can excite strong vortex flow, accelerate the mass transfer between the gas-liquid two phases, and especially for the particles with larger density, it is easier to be captured and settled, reducing the burden of the subsequent annular baffle 110. Compared with vertical entry, the tangential inlet design reduces the direct impact of the exhaust gas on the tower wall of the desulfurization tower body 100, which helps to reduce the wear and corrosion of the tower wall material, and also helps to prevent excessive accumulation of solid particles in a certain area and keep the tower unobstructed.

[0039] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A desulfurization tower for treating a waste gas produced in strontium carbonate production, characterized by comprising: The application relates to a desulfurization tower body (100) provided with N annular baffles (110) arranged linearly along the axial direction of the desulfurization tower body (100), wherein the annular baffles (110) are in an inverted conical structure and are provided with an opening at the central position; N>=2; the upper end of the desulfurization tower body (100) is provided with an exhaust port (120); the lower end of the desulfurization tower body (100) is provided with an air inlet pipe (130); a spraying device (200) is arranged below the annular baffles (110) and is provided with a spraying main pipe (210) and N spraying branch pipes (220) communicated with the spraying main pipe (210). The spraying branch pipe (220) comprises a connecting pipe section (221) and an annular pipe section (222), the axis of the connecting pipe section (221) is horizontally arranged, one end of the connecting pipe section (221) is communicated with the spraying main pipe (210), and the other end of the connecting pipe section (221) is communicated with the annular pipe section (222). The annular pipe section (222) is provided with an atomizing nozzle (230).

2. The desulfurizing tower for treating a strontium carbonate production exhaust gas according to claim 1, characterized by The normal line and the axis of the annular baffle (110) have an included angle beta, wherein 45 DEG <= beta <= 65 DEG.

3. The desulfurizing tower for treating a strontium carbonate production exhaust gas according to claim 2, characterized by The annular baffle (110) is provided with an annular rib (111).

4. The desulfurizing tower for treating a strontium carbonate production exhaust gas according to claim 3, characterized by The annular baffle (110) is provided with a corrosion-resistant coating.

5. The desulfurizing tower for treating a waste gas produced in strontium carbonate production according to claim 4, characterized by The upper end of the desulfurization tower body (100) is provided with a working platform (140).

6. The desulfurizing tower for treating a strontium carbonate production exhaust gas according to claim 5, characterized by The exhaust port (120) is provided with a sulfur dioxide alarm.

7. The desulfurizing tower for treating a strontium carbonate production exhaust gas according to claim 1, characterized by The axis of the air inlet pipe (130) is tangent to the inner circumferential wall of the desulfurization tower body (100).

8. The desulfurizing tower for treating a strontium carbonate production exhaust gas according to claim 1, characterized by ​ 9. The desulfurizing tower for treating a strontium carbonate production exhaust gas according to claim 1, characterized by ​

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