A wet desulfurization system tail gas purification device

Abstract

The application provides a wet desulfurization system tail gas purification device, which comprises an input pipe, an A connecting ring arranged on one side of the input pipe, a connecting shaft, a connecting rod, a switching box, a butt joint, an output pipe and a B connecting ring, and the surface threads of the input pipe are connected with the inner surface threads of the A connecting ring. Through the rotating work of the connecting shaft and the B connecting ring, the separation work between the input pipe, the output pipe and the butt joint can be smoothly completed, and after the subsequent rotating work of the switching box, the working position of the butt joint can be smoothly switched, so that the switching can be conveniently achieved, the switching work of the filter element in the butt joint can be smoothly completed, the switching work is convenient and fast, the contact time between the workers and the filter element can be reduced, the safety hidden danger is reduced, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of industrial desulfurization technology, in particular to a tail gas purification device of a wet desulfurization system. BACKGROUND

[0002] Industrial desulfurization refers to flue gas desulfurization technology by double-alkali method, which is developed to overcome the shortcomings of limestone-lime method that is easy to scale. There are dozens of types, and flue gas desulfurization is divided into three categories of desulfurization processes according to whether water is added in the desulfurization process and the dry and wet forms of desulfurization products. Wet desulfurization technology is more mature, high efficiency, and simple operation. The traditional limestone, lime-gypsum flue gas desulfurization process uses calcium-based desulfurizer to absorb sulfur dioxide to generate calcium sulfite and calcium sulfate. Because of its low solubility, it is easy to form scaling and blockage in the desulfurization tower and pipeline. And a certain amount of tail gas will be produced in the process of purification, which will cause air pollution.

[0003] According to the announcement No. CN213556290U, a wet desulfurization system tail gas purification device is disclosed. In this technology, the tail gas collection pipeline is connected with the acid washing tower inlet, the acid washing tower tail gas outlet is connected with the venturi device inlet through the pipeline valve, the venturi tail gas outlet is connected with the water washing tower tail gas inlet through the pipeline, the acid washing tower circulating pump inlet is equipped with a three-way valve, and is connected with the acid washing tower bottom liquid outlet and the ammonium sulfate circulating liquid storage tank outlet through the pipeline respectively, the acid washing tower circulating pump outlet is connected with the acid washing tower spraying device through the pipeline valve, the excess circulating liquid is sent to the ammonium sulfate circulating liquid storage tank, and the water washing tower bottom liquid outlet is connected with the water washing tower circulating pump inlet through the pipeline. The device uses a venturi device to realize the pumping of tail gas without external power. In addition, the acid washing tower circulating liquid in the device uses the weak acid circulating liquid with a pH of 3.5-4.5% in the adjacent ammonium sulfate post as the circulating liquid, which fully utilizes the existing resources to be economical and safe.

[0004] Although the design can realize the pumping of tail gas by using a venturi device without external power, and the acid washing tower circulating liquid in the device uses the weak acid circulating liquid with a pH of 3.5-4.5% in the adjacent ammonium sulfate post as the circulating liquid, which fully utilizes the existing resources to be economical and safe, but the device will produce certain pollution gas in the later stage of purification. At this time, the gas needs to be purified, and the filter element in the device needs to be replaced frequently during the filtering process.

[0005] To solve the above problems, a wet desulfurization system tail gas purification device is provided in the present application. SUMMARY

[0006] In order to solve the problems raised in the above background technology, the present invention provides an exhaust gas purification device for a wet flue gas desulfurization system, which can smoothly complete the separation work between the input pipe, the output pipe and the docking port through the rotation of the connecting shaft and the B connecting ring, and can smoothly switch the working position of the docking port after the subsequent rotation of the switching box, so that it can be switched conveniently, and then the switching work of the filter element inside the docking port can be smoothly completed, and the switching work is convenient and fast, and can also reduce the contact time between the staff and the filter element, reduce safety hazards, and have a certain degree of safety.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a wet flue gas purification device for a wet flue gas desulfurization system, comprising an input pipe, and also comprising an A connecting ring, a connecting shaft, a connecting rod, a switching box, a docking port, an output pipe and a B connecting ring arranged on one side of the input pipe, the surface thread of the input pipe and the inner surface of the A connecting ring being threadedly connected, and the surface of the input pipe is also fixedly mounted with the connecting shaft that is slidably connected to the connecting rod, and the other end of the connecting rod is fixedly mounted on the surface of the switching box, and at the same time, the surface of the switching box is also fixedly mounted with the docking port, the side of the switching box away from the input pipe is also threadedly connected to the B connecting ring, and the inner surface of the B connecting ring is also threadedly connected to the surface of the output pipe.

[0008] As a preferred embodiment of the tail gas purification device of the wet flue gas desulfurization system of the present invention, the input pipe and the output pipe have the same shape and are on the same straight line.

[0009] As a preferred embodiment of the exhaust gas purification device of a wet flue gas desulfurization system of the present invention, a circular through hole matching the connecting rod is provided on the surface of the connecting shaft.

[0010] As a preferred embodiment of the exhaust gas purification device of a wet flue gas desulfurization system of the present invention, the connection point between the connecting rod and the switching box is at the midpoint of the switching box.

[0011] As a preferred embodiment of the exhaust gas purification device of a wet flue gas desulfurization system of the present invention, circular through holes are symmetrically opened on the surface of the switching box.

[0012] As a preferred embodiment of the tail gas purification device of the wet flue gas desulfurization system of the present invention, the diameter of the docking port is the same as the inner surface diameters of the input pipe and the output pipe.

[0013] Compared with the prior art, the beneficial effects of the present application are that through the rotating work of the connecting shaft and the B connecting ring, the input pipe and the output pipe and the docking port can be smoothly separated, and after the subsequent rotating work of the switching box, the working position of the docking port can also be smoothly switched, so that the switching can be conveniently obtained, and the switching work of the filter element in the docking port can be smoothly completed, the switching work is convenient and fast, the contact time between the workers and the filter element can be reduced, the safety hidden danger is reduced, and the safety is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the principles of the present application, and do not constitute a limitation of the present application. In the drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the switching box and the docking port in the present application;

[0017] Figure 3 It is a schematic diagram of the rotating state structure of the switching box in the present application;

[0018] Figure 4 It is a schematic diagram of the explosion structure in the present application;

[0019] In the drawings:

[0020] 1, input pipe; 2, A connecting ring; 3, connecting shaft; 4, connecting rod; 5, switching box; 6, docking port; 7, output pipe; 8, B connecting ring. DETAILED DESCRIPTION

[0021] The exemplary embodiments will be described in detail herein below with reference to the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure.

[0022] The terms used in the present disclosure are merely for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The singular forms "a", "an" and "the" used in the present disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0023] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1:

[0025] A wet desulfurization system tail gas purification device, comprising an input pipe 1.

[0026] In this embodiment: the existing publication number: CN213556290U discloses a wet desulfurization system tail gas purification device; to solve the technical problems existing in this prior art, as disclosed in the background art above, "the device will produce certain pollution gas in the later stage of purification, so at this time the gas needs to be purified, and the filter element inside the device needs to be replaced frequently during the filtering process", in combination with the use, this problem is obviously a real problem and is relatively difficult to solve, in view of this, to solve the above problems, A connecting ring 2 and a connecting shaft 3 are added on this basis.

[0027] Further:

[0028] As Figure 1 - Figure 4 shown:

[0029] In combination with the above content: it also includes A connecting ring 2, connecting shaft 3, connecting rod 4, switching box 5, docking port 6, output pipe 7 and B connecting ring 8 arranged on one side of the input pipe 1, the surface threads of the input pipe 1 are connected with the inner surface threads of the A connecting ring 2, and the surface of the input pipe 1 is also fixedly installed with the connecting shaft 3 which is slidingly connected with the connecting rod 4, and the other end of the connecting rod 4 is fixedly installed on the surface of the switching box 5, at the same time the surface of the switching box 5 is also fixedly installed with the docking port 6, and the side of the switching box 5 away from the input pipe 1 is also threadedly connected with the B connecting ring 8, and the inner surface of the B connecting ring 8 is also threadedly connected with the surface of the output pipe 7.

[0030] In this embodiment: when the filter element inside the docking port 6 needs to be replaced, the two sides of the docking port 6 connected to each other can be rotated at the same time, at this time the connecting shaft 3 and the B connecting ring 8 will approach the direction of the input pipe 1 and the output pipe 7 respectively, until the connecting shaft 3 and the B connecting ring 8 are completely separated from the docking port 6, then the switching box 5 and the docking port 6 can be rotated 180 degrees along the connecting rod 4, at this time the connecting shaft 3 and the connecting rod 4 will produce rotation, and the docking port 6 being used will be separated from the input pipe 1 and the output pipe 7, the clean docking port 6 installed will be driven to the position of the input pipe 1 and the output pipe 7 under the rotation of the switching box 5, finally the connecting shaft 3 and the B connecting ring 8 can be connected with the docking port 6 on both sides of the surface of the switching box 5 by rotation, thereby enabling the docking port 6 to complete the filtering work, then the filter element exposed in the docking port 6 can be taken out, at this time the safe replacement work of the filter element is completed, and the direct contact between the worker and the filter element can be greatly reduced during the process, which has a certain safety.

[0031] Further, the input pipe 1 and the output pipe 7 are in the same line.

[0032] In an optional embodiment, the input pipe 1 and the output pipe 7 are in the same line.

[0033] In this embodiment, the input pipe 1 and the output pipe 7 in the same line can be connected or separated with the docking interface 6 and the switching box 5 simultaneously before and after the rotation work of the switching box 5, which is conducive to the smooth completion of the fixing and separation work between the connecting shaft 3 and the B connecting ring 8.

[0034] Further, the input pipe 1 and the output pipe 7 are in the same line.

[0035] In an optional embodiment, the surface of the connecting shaft 3 is provided with a circular through hole matched with the connecting rod 4.

[0036] In this embodiment, the circular through hole on the surface of the connecting shaft 3 can provide a stable connecting space for the connecting rod 4, which can provide a stable fulcrum for the rotation work of the switching box 5, and is conducive to the replacement work of the docking interface 6 and the filter element inside.

[0037] Further, the input pipe 1 and the output pipe 7 are in the same line.

[0038] In an optional embodiment, the connecting rod 4 and the switching box 5 are connected at the midpoint of the switching box 5.

[0039] In this embodiment, the connecting rod 4 at the midpoint of the connecting rod 4 and the switching box 5 can make the rotation work of the switching box 5 more stable, and can make the docking work between the docking interface 6 and the input pipe 1 and the output pipe 7 more accurate before and after the rotation work of the switching box 5.

[0040] Further, the input pipe 1 and the output pipe 7 are in the same line.

[0041] In an optional embodiment, the surface of the switching box 5 is provided with a circular through hole.

[0042] In this embodiment, the circular through hole on the surface of the switching box 5 can stably switch the docking interface 6 when the switching box 5 rotates, which can reduce the direct contact between the workers and the filter element and reduce the generation of safety hazards.

[0043] Further, the input pipe 1 and the output pipe 7 are in the same line.

[0044] In an optional embodiment, the diameter of the docking interface 6 is the same as the inner surface diameter of the input pipe 1 and the output pipe 7.

[0045] In the embodiment, the docking interface 6 with the same diameter as the input pipe 1 and the output pipe 7 can make the gas in the input pipe 1 pass through the docking interface 6 into the inside of the output pipe 7 smoothly, thereby achieving the purpose of discharge and effectively reducing the pollution.

[0046] The working principle and use process of the present application are as follows: when the filter element inside the docking interface 6 needs to be replaced, the gradually rotating of the docking interface 6 connected on both sides can be simultaneously realized, at this time, the connecting shaft 3 and the B connecting ring 8 will approach the direction of the input pipe 1 and the output pipe 7 respectively, until the connecting shaft 3 and the B connecting ring 8 are completely separated from the docking interface 6, then the switching box 5 and the docking interface 6 can be rotated 180 degrees along the connecting rod 4, at this time, the connecting shaft 3 and the connecting rod 4 will produce rotation, and the docking interface 6 being used will be separated from the input pipe 1 and the output pipe 7, the clean docking interface 6 will be driven to the position of the input pipe 1 and the output pipe 7 under the rotation of the switching box 5, finally, the connecting shaft 3 and the B connecting ring 8 and the docking interface 6 on both sides of the surface of the switching box 5 can be connected by rotation, thereby the docking interface 6 can complete the filtering work, then the filter element exposed in the docking interface 6 can be taken out, at this time, the safe replacement work of the filter element is completed, and the direct contact between the worker and the filter element can be greatly reduced in the process, which has a certain safety.

[0047] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A wet desulphurization system exhaust gas purification device comprising an input pipe (1), characterized in that: It also includes A connecting ring (2), connecting shaft (3), connecting rod (4), switching box (5), docking interface (6), output pipe (7) and B connecting ring (8) arranged on one side of the input pipe (1), the surface of the input pipe (1) is threadedly connected with the inner surface of the A connecting ring (2), the surface of the input pipe (1) is further fixedly provided with the connecting shaft (3) which is slidingly connected with the connecting rod (4), the other end of the connecting rod (4) is fixedly provided on the surface of the switching box (5), the surface of the switching box (5) is further fixedly provided with the docking interface (6), the side of the switching box (5) away from the input pipe (1) is further threadedly connected with the B connecting ring (8), and the inner surface of the B connecting ring (8) is further threadedly connected with the surface of the output pipe (7).

2. The wet desulphurization system exhaust gas purification device according to claim 1, characterized in that: The input pipe (1) and the output pipe (7) are identical in shape and are on the same straight line.

3. The wet desulphurization system exhaust gas purification device according to claim 1, characterized in that: The surface of the connecting shaft (3) is provided with a circular through hole matched with the connecting rod (4).

4. The wet desulphurization system exhaust gas purification device according to claim 1, characterized in that: The connecting rod (4) and the switching box (5) are connected at the midpoint of the switching box (5).

5. The wet desulphurization system exhaust gas purification device according to claim 1, characterized in that: The surface of the switching box (5) is symmetrically provided with a circular through hole.

6. The wet desulphurization system exhaust gas purification device according to claim 1, characterized in that: The diameter of the docking interface (6) is the same as the inner surface diameter of the input pipe (1) and the output pipe (7).

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