Flue gas desulfurization device

Abstract

The invention relates to a flue gas desulfurization device, and relates to the technical field of flue gas treatment.The flue gas desulfurization device comprises a barrel, the outer side of the barrel communicates with a flue gas inlet pipe, the top of the barrel communicates with a flue gas outlet pipe, and a filtering mechanism and a spraying mechanism are arranged in the barrel; the filtering mechanism comprises a mounting circular frame and a plurality of filtering units, the mounting circular frame is coaxially arranged in the cylinder body, a plurality of mounting sockets are formed in the outer side of the mounting circular frame, the filtering units correspond to the mounting sockets one to one, and the filtering units are matched with the corresponding mounting sockets in an inserted mode; a plurality of filter hole groups are formed in the upper side of the mounting circular frame in a penetrating manner, are in one-to-one correspondence with the mounting sockets and are communicated with the corresponding mounting sockets; a plurality of replacement ports are formed in the outer side of the barrel, correspond to the mounting insertion ports one to one and are communicated with the corresponding mounting insertion ports in an opposite manner, and the filter units are matched with the corresponding replacement ports in an insertion manner. The shutdown time of the flue gas desulfurization device can be shortened, and the flue gas desulfurization efficiency is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas treatment, and in particular to a flue gas desulfurization device. Background Art

[0002] At present, flue gas desulfurization mainly adopts wet desulfurization. The principle of wet desulfurization is: the alkaline liquid in the spray tower or absorption tower contacts the flue gas, so that the alkaline liquid absorbs sulfur dioxide in the flue gas to generate sulfite or sulfate.

[0003] Since the existing flue gas often carries some solid impurities, the presence of these solid impurities will affect the full contact between the alkaline liquid and the sulfur dioxide in the flue gas, thereby reducing the desulfurization effect.

[0004] Based on this problem, a multi-stage filtration structure is added to the existing flue gas desulfurization device. When the flue gas enters the flue gas desulfurization device, as the flue gas rises, the flue gas passes through the multi-stage filtration structure, which can separate the solid impurities in the flue gas, and then the flue gas is wet-desulfurized by spraying, which allows the sprayed alkaline liquid to fully contact with the sulfur dioxide in the flue gas, thereby improving the desulfurization effect of the flue gas.

[0005] Regarding the above-mentioned related technologies, since solid impurities in the flue gas will adhere to the filter structure, and as the flue gas desulfurization continues, the filter structure will eventually become blocked. At this time, the flue gas desulfurization device needs to be shut down and disassembled, and the filter structure needs to be cleaned or replaced, which will affect the efficiency of the flue gas desulfurization. Summary of the invention

[0006] The present application provides a flue gas desulfurization device, the purpose of which is to reduce the downtime of the flue gas desulfurization device and ensure the efficiency of the flue gas desulfurization.

[0007] The present application provides a flue gas desulfurization device that adopts the following technical solution: 14. The smoke exhaust gas device of claim 13, wherein the filter element is a filter element and a filter element is disposed in the filter element. The filter element is a filter element disposed in the filter element, wherein the filter element has a plurality of filter elements, and the filter element has a plurality of filter elements. The filter element is a filter element disposed in the filter element, wherein the filter element has a plurality of filter elements. The filter element is a filter element disposed in the filter element, wherein the filter element has a plurality of filter elements.

[0008] By adopting the above technical solution, firstly, the flue gas desulfurization device can filter and then desulfurize the flue gas introduced into the cylinder through the cooperation of the cylinder, the filtering mechanism and the spraying mechanism.

[0009] Secondly, the filter mechanism is arranged by the cooperation of the mounting frame and a plurality of filter units, and the mounting frame is provided with a mounting socket on the outside, the filter unit is plugged into the corresponding mounting socket, the mounting frame is provided with a filter hole group, and the mounting socket is connected with the filter hole group. With such a structural arrangement, during the rising process of smoke in the cylinder, the smoke can enter the corresponding mounting socket from the corresponding filter hole group, at which time the filter unit filters the smoke, and the filtered smoke can be discharged from the mounting socket through the corresponding filter hole group, which enables the filter mechanism to have a filtering function for the smoke.

[0010] Since the installation sockets provided on the outer side of the installation round frame are plugged and matched with the filter units in a one-to-one correspondence, this structural arrangement facilitates the installation and replacement of the filter units on the installation round frame.

[0011] Since a replacement port is provided on the outside of the cylinder, the replacement port is directly connected to the installation socket, and the filter unit is plugged into the replacement port, the corresponding filter unit can be directly removed from the installation round frame outside the cylinder, and a new filter unit can be installed on the installation round frame, which makes it easier to replace the filter unit.

[0012] Therefore, during the flue gas desulfurization process, when the flue gas flow rate decreases and the internal pressure of the cylinder increases, it means that the filter mechanism is blocked. At this time, several filter units in the filter mechanism can be replaced in sequence outside the cylinder. When the filter unit is replaced in this way, there is no need to disassemble the flue gas desulfurization device, and it can also be carried out during the use of the flue gas desulfurization device, which can reduce the downtime of the flue gas desulfurization device caused by replacing the filter unit, thereby ensuring the efficiency of flue gas desulfurization.

[0013] Optionally, closed control components are provided on both the upper and lower sides of the mounting circular frame, and the closed control components include a plurality of fan-shaped plates, which are slidably connected to the upper or lower side of the mounting circular frame, and the fan-shaped plates are arranged in a one-to-one correspondence with the filter hole groups, and the fan-shaped plates close the corresponding filter hole groups; a plurality of closed driving members are provided on the mounting circular frame, and the closed driving members are arranged in a one-to-one correspondence with the fan-shaped plates, and the driving ends of the closed driving members are connected to the corresponding fan-shaped plates, and the closed driving members are used to drive the fan-shaped plates to slide open or close the corresponding filter hole groups.

[0014] By adopting the above technical solution, the closed control component can control the opening and closing of the corresponding filter hole group through the coordinated arrangement of the fan plate and the closed drive member, which makes it possible to freely select the filter unit for smoke filtering.

[0015] And in the actual operation process, when the filter unit needs to be maintained or replaced, the fan-shaped plate is driven to slide through the closing drive member to close the corresponding filter hole group, thereby blocking the flow of flue gas in the filter unit, allowing the flue gas to pass through other normally working filter units. This can achieve local switching of the filtering function and avoid the situation where the entire flue gas desulfurization device needs to be shut down for processing due to problems with a single or part of the filter units, greatly improving the flexibility and reliability of the operation of the flue gas desulfurization device.

[0016] Optionally, a smoke vent is provided on the inner side wall of the mounting socket, and the smoke vent connects two adjacent mounting sockets; a plurality of connection control components are provided on the mounting circular frame, and the connection control components are arranged in one-to-one correspondence with the smoke vent, and the connection control components are used to control the opening and closing of the corresponding smoke vent.

[0017] By adopting the above technical solution, the smoke vent hole is opened and the connection control component is arranged in coordination, so that the connection and closure of the two installation sockets can be controlled.

[0018] Under normal circumstances, the smoke is filtered through the filter unit. When it is necessary to increase the contact time between the smoke and the filter unit, under the action of several closed control components, one filter unit is selected to have its lower filter hole group opened and its upper filter hole group closed, and another filter unit is selected to have its lower filter hole group closed and its upper filter hole group opened. Under the action of several connecting control components, several smoke holes between the two selected filter units are opened. At this time, the smoke entering the filter mechanism will pass through all the filter units between the two selected filter units in turn, which can extend the contact time between the smoke and the filter unit, thereby increasing the filtering effect.

[0019] This design not only improves the adaptability of the filter mechanism, enabling it to flexibly adjust the flow path of the flue gas according to actual working conditions, but also enhances the filtering effect to a certain extent. Because the flue gas can be filtered multiple times through multiple filter units, the residence time of the flue gas in the filter mechanism is prolonged, so that solid impurities can be separated more fully.

[0020] Optionally, a plurality of the filtering mechanisms and the spraying mechanisms are provided, and the filtering mechanisms and the spraying mechanisms are provided in one-to-one correspondence, the spraying mechanisms are located directly above the corresponding filtering mechanisms, and the plurality of the filtering mechanisms and the plurality of the spraying mechanisms are arranged alternately in sequence along the vertical direction.

[0021] By adopting the above technical scheme, a plurality of filtering mechanisms and spraying mechanisms are provided, and the arrangement of the filtering mechanisms and the spraying mechanisms enables the flue gas to pass through a plurality of filtering mechanisms and a plurality of spraying mechanisms in sequence during the rising process, thereby achieving the effect of multi-stage filtration and desulfurization, which can effectively remove solid impurities and sulfur dioxide in the flue gas and improve the quality of flue gas desulfurization.

[0022] Optionally, the cylinder body includes a base, an upper cover and several intermediate rings, the several intermediate rings are arranged in sequence along their own axes, the intermediate rings are located between the upper cover and the base along their own axial directions, the base and adjacent intermediate rings, the upper cover and adjacent intermediate rings, and two adjacent intermediate rings are all detachably connected, the smoke inlet pipe is connected to the base, and the smoke outlet pipe is connected to the upper cover; the intermediate rings and the filtering mechanisms are arranged in a one-to-one correspondence, the filtering mechanism and the corresponding spray mechanism are both located in the corresponding intermediate rings, and the filtering mechanism and the corresponding spray mechanism are both connected to the corresponding intermediate rings.

[0023] By adopting the above technical solution, the cylinder is provided with a structure of a base, an upper cover and a plurality of intermediate rings, wherein the plurality of intermediate rings are arranged in sequence along their own axial direction, and the intermediate rings are located between the base and the upper cover. Since the base and the corresponding intermediate rings, the upper cover and the corresponding intermediate rings, and the two adjacent intermediate rings can be detachably connected, it is convenient to increase or decrease the number of intermediate rings, and thus the height of the cylinder can be conveniently changed. Since a filtering mechanism and a spraying mechanism are arranged in the intermediate ring, the number of filtering mechanisms and spraying mechanisms in the cylinder can also be adjusted by increasing or decreasing the number of intermediate rings. Therefore, according to actual use needs, the number of intermediate rings can be freely increased, so that the flue gas desulfurization device can meet the flue gas desulfurization needs of different processing scales and processing requirements.

[0024] Optionally, an intermediate flue mechanism is arranged between the filtering mechanism and the adjacent spray mechanism; the intermediate flue mechanism includes an installation main shaft and a plurality of partitions, the installation main shaft is located in the cylinder body, the installation main shaft is coaxially arranged with the cylinder body, the plurality of partitions are arranged on the side wall of the installation main shaft, the plurality of partitions are arranged in sequence and spaced apart along the circumference of the installation main shaft, an independent flue is formed on the outer wall of the installation main shaft, the inner wall of the cylinder body and between two adjacent partitions, and the plurality of independent flues are arranged independently of each other; the spray mechanism includes a plurality of spray units, the spray units are arranged in one-to-one correspondence with the filtering units, and the spray units and the corresponding filtering units are arranged opposite to each other in the vertical direction; the independent flues are arranged in one-to-one correspondence with the filtering units, the corresponding filter hole group is located in the corresponding independent flue, and the corresponding spray unit is located in the independent flue.

[0025] By adopting the above technical solution, the intermediate flue mechanism forms a number of independent flues between the filtering mechanism and the adjacent spraying mechanism through the installation of the main shaft and the coordination of a number of partitions. The setting of the independent flue makes the flow of smoke between the filtering mechanism and the spraying mechanism more orderly, avoiding the turbulence of smoke in the cylinder.

[0026] Since the independent flue and the filter unit are arranged one by one, and the filter hole group corresponding to the filter unit is located in the corresponding independent flue, and the spray unit is also located in the corresponding flue. This allows the flue gas to enter the corresponding spray unit through the independent flue for desulfurization after being filtered by the filter unit, and then enter the next filter unit through the independent flue, and so on. This design not only improves the efficiency of flue gas filtration and desulfurization, but also can better control the flow path and speed of the flue gas, so that the flue gas can fully contact with the filter unit and the spray unit during the filtration and desulfurization process, thereby improving the filtration and desulfurization effect.

[0027] At the same time, the independence of independent flues also means that when maintenance or replacement of components in an independent flue is carried out, the normal operation of other independent flues will not be affected, further improving the operating reliability and maintenance convenience of the device, reducing the risk of downtime due to local failures, and ensuring the efficiency of flue gas desulfurization.

[0028] Optionally, a plurality of maintenance ports are provided on the outer wall of the cylinder, the maintenance ports are arranged in a one-to-one correspondence with the independent flues, and the maintenance ports are connected to the corresponding independent flues; a plurality of maintenance plates are provided on the outer wall of the cylinder, the maintenance plates are detachably connected to the outer wall of the cylinder, the maintenance plates are arranged in a one-to-one correspondence with the maintenance ports, and the maintenance plates close the corresponding maintenance ports.

[0029] By adopting the above technical solution, the maintenance openings provided on the outer wall of the cylinder are connected to the independent flues in a one-to-one correspondence, and a detachable maintenance plate is provided to close the maintenance openings.

[0030] When the flue gas desulfurization device is operating normally, the maintenance plate closes the maintenance port, ensuring the sealing of the cylinder and the normal operation of the flue gas desulfurization process. When the spray unit needs to be maintained, repaired or replaced, just open the corresponding maintenance plate and enter the independent flue through the maintenance port to operate, without disassembling the entire cylinder, which greatly saves maintenance time and labor costs. At the same time, this design also enables maintenance personnel to more conveniently observe the situation inside the independent flue, discover potential problems in time and deal with them, and improve the operating reliability and safety of the device.

[0031] Optionally, the mounting circular frame includes a plurality of fan-shaped frames, which are arranged in sequence along the circumference of the cylinder, and two adjacent fan-shaped frames are detachably connected; the fan-shaped frames are arranged one-to-one with the filter units, the mounting sockets are opened on the outer side walls of the corresponding fan-shaped frames, and the corresponding filter hole groups are opened on the corresponding fan-shaped frames, the fan-shaped plates are arranged on the upper or lower sides of the fan-shaped frames, the fan-shaped plates are slidably connected to the fan-shaped frames, and the closed drive member is arranged on the corresponding fan-shaped frames.

[0032] By adopting the above technical solution, the mounting round frame is composed of a plurality of fan-shaped frames, two adjacent fan-shaped frames are detachably connected, the fan-shaped frames are arranged one-to-one with the filter units, the filter hole groups and the mounting sockets are both provided on the fan-shaped frames, the fan-shaped plates are arranged one-to-one with the fan-shaped frames and are slidably connected, and the closed driving member is arranged on the fan-shaped frames. The detachable connection mode of the fan-shaped frames facilitates the assembly and disassembly of the mounting round frame. When a filter unit needs to be replaced or the mounting round frame needs to be maintained, only the corresponding fan-shaped frame needs to be disassembled, and there is no need to disassemble the entire mounting round frame on a large scale, thereby improving the maintenance efficiency.

[0033] Optionally, a plurality of replacement plates are provided on the outside of the cylinder, the replacement plates are detachably connected to the outside of the cylinder, the replacement plates are provided in one-to-one correspondence with the replacement ports, and the replacement plates seal the corresponding replacement ports.

[0034] By adopting the above technical solution, a replacement plate is arranged on the outside of the cylinder in a one-to-one correspondence with the replacement port, and the replacement plate closes the corresponding replacement port. When the flue gas desulfurization device is operating normally, the replacement plate closes the replacement port to prevent flue gas from leaking from the replacement port, thereby ensuring the normal progress of the flue gas desulfurization process and the sealing performance of the device. When the filter unit needs to be replaced, the corresponding replacement plate is opened, and the filter unit can be replaced through the replacement port.

[0035] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application facilitates the replacement of the filter unit in the cylinder through the structural setting of the cylinder and the filter mechanism, and can realize the replacement of the filter unit during the operation of the flue gas desulfurization device, which can reduce the downtime of the flue gas desulfurization device and ensure the flue gas desulfurization efficiency.

[0036] 2. The present application can control the contact time between the flue gas and the filter unit by coordinating the closed control component and the connected control component, which can improve the flue gas filtration effect and further improve the flue gas desulfurization effect.

[0037] 3. Through the structural setting of the cylinder, the flue gas desulfurization device of the present application can freely add or reduce the number of intermediate rings according to actual needs, so that the flue gas desulfurization device can adapt to different processing requirements, thereby improving the applicability of the flue gas desulfurization device of the present application.

[0038] 4. Through the structural arrangement of the cylinder, filtering mechanism, spraying mechanism and intermediate flue mechanism, the present application can simultaneously inspect and repair some structures inside the cylinder during the operation of the flue gas desulfurization device, thereby further reducing the downtime of the flue gas desulfurization device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the flue gas desulfurization device of the present application.

[0040] Figure 2 It is a schematic diagram of the cross-sectional structure of the flue gas desulfurization device of the present application.

[0041] Figure 3 It is a schematic diagram of the overall structure of the intermediate ring of the present application.

[0042] Figure 4 It is a schematic diagram of the cross-sectional structure of the intermediate ring of the present application.

[0043] Figure 5It is a schematic diagram of the overall structure of the filtering mechanism of the present application.

[0044] Figure 6 It is a schematic diagram of the exploded structure of the fan-shaped frame and the filter unit of the present application.

[0045] Figure 7 It is a schematic cross-sectional structural diagram of the fan-shaped frame and the filter unit of the present application.

[0046] Figure 8 It is a schematic diagram of the overall structure of several fan-shaped frames of the present application after being assembled.

[0047] Fig. 9 It is a schematic diagram of the overall structure of the spray mechanism and the intermediate flue mechanism of the present application.

[0048] In the figure, 1, cylinder; 11, base; 12, middle tube; 121, middle ring; 122, replacement port; 123, replacement plate; 124, maintenance port; 125, maintenance plate; 13, upper cover; 2, smoke inlet pipe; 3, smoke outlet pipe; 4, drain pipe; 5, filter mechanism; 51, mounting round frame; 511, reinforcement round plate; 512, fan-shaped frame; 5121, filter hole group; 5122, mounting socket; 513, smoke hole; 5131, first hole; 514, mounting hole; 5141, mounting groove; 52, filter unit; 521, pull-out handle ; 522, fan-shaped shell; 523, filter material; 53, closed control component; 531, fan-shaped plate; 532, closed hole group; 533, closed drive member; 54, connecting control component; 541, connecting plate; 542, connecting hole; 543, connecting drive member; 6, spray mechanism; 61, mounting circular plate; 611, air vent; 612, hidden groove; 62, spray unit; 621, spray main pipe; 622, spray auxiliary pipe; 623, spray head; 7, intermediate flue mechanism; 71, mounting main shaft; 72, partition; 73, independent flue. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1 -Attached Fig. 9 , further details of this application are given.

[0050] A flue gas desulfurization device, referring to Figure 1 and Figure 2, including a cylinder 1, a plurality of filter mechanisms 5 and a plurality of spray mechanisms 6. The cylinder 1 is arranged vertically, the outer side of the cylinder 1 is connected to a smoke inlet pipe 2, the top of the cylinder 1 is connected to a smoke outlet pipe 3, and the bottom of the cylinder 1 is connected to a drain pipe 4. The filter mechanism 5 and the spray mechanism 6 are both located in the cylinder 1, the plurality of filter mechanisms 5 are arranged in sequence along the vertical direction, and the filter mechanisms 5 and the spray mechanisms 6 are arranged one by one, the spray mechanisms 6 are located directly above the corresponding filter mechanisms 5, the plurality of filter mechanisms 5 and the plurality of spray mechanisms 6 are arranged alternately in sequence in the vertical direction, and the plurality of filter mechanisms 5 and the plurality of spray mechanisms 6 are both located between the smoke inlet pipe 2 and the smoke outlet pipe 3 along the vertical direction.

[0051] During flue gas desulfurization, the flue gas is introduced into the cylinder 1 through the smoke inlet pipe 2, and the flue gas rises and passes through all the filter mechanisms 5 and all the spray mechanisms 6 in sequence, and is finally discharged from the smoke outlet pipe 3. During this process, the filter mechanism 5 separates solid impurities in the flue gas, and the spray mechanism 6 sprays alkaline liquid to separate sulfur dioxide in the flue gas; and the excess alkaline liquid sprayed by the spray mechanism 6 falls to the bottom of the cylinder 1. When there is too much alkaline liquid at the bottom of the cylinder 1, the drain pipe 4 is opened by the control valve, and a liquid pump is used to discharge the excess alkaline liquid from the drain pipe 4.

[0052] Reference Figure 1 and Figure 2 The cylinder body 1 includes a base 11, an intermediate tube 12 and an upper cover 13. The intermediate tube 12 is vertically arranged, and the base 11 is coaxially connected to the bottom of the intermediate tube 12, the upper cover 13 is coaxially connected to the top of the intermediate tube 12, the smoke outlet pipe 3 is connected to the upper cover 13, the smoke inlet pipe 2 is connected to the side wall of the base 11, the drain pipe 4 is connected to the bottom of the base 11, and the smoke inlet pipe 2 and the drain pipe 4 are both connected to the base 11.

[0053] In this embodiment, refer to Figure 2 and Figure 3 The intermediate tube 12 includes a plurality of intermediate rings 121, which are axially arranged in the vertical direction. The plurality of intermediate rings 121 are located between the base 11 and the upper cover 13 in the vertical direction. The plurality of intermediate rings 121 are arranged in sequence along their own axial directions, and the base 11 and the adjacent intermediate rings 121, the upper cover 13 and the adjacent intermediate rings 121, and two adjacent intermediate rings 121 can be detachably connected.

[0054] In this embodiment, the base 11 and the adjacent intermediate ring 121 , the upper cover 13 and the adjacent intermediate ring 121 , and two adjacent intermediate rings 121 are connected by flanges or a plurality of bolts.

[0055] Reference Figure 3 and Figure 4The filter mechanism 5 and the middle ring 121 are arranged one by one, the filter mechanism 5 and the corresponding spray mechanism 6 are both located in the corresponding middle ring 121, and the filter mechanism 5 and the spray mechanism 6 are both connected to the inner wall of the corresponding middle ring 121.

[0056] The structure of the intermediate tube 12 is arranged so that a filtering mechanism 5 and a spraying mechanism 6 are installed in each intermediate ring 121. Therefore, by increasing or decreasing the number of intermediate rings 121, the height of the cylinder 1 can be changed, and the number of times the flue gas is filtered and desulfurized in the cylinder 1 can also be changed.

[0057] Reference Figure 4 and Figure 5 The filtering mechanism 5 includes a mounting frame 51 and a plurality of filtering units 52. The mounting frame 51 is coaxially arranged in the corresponding intermediate ring 121, and the mounting frame 51 and the intermediate ring 121 are detachably connected. The filtering units 52 are arranged in the mounting frame 51, and the plurality of filtering units 52 are sequentially arranged along the circumference of the mounting frame 51, and the plurality of filtering units 52 are arranged in a circular pattern.

[0058] In this embodiment, refer to Figure 4 and Figure 5 The mounting frame 51 includes two reinforcing circular plates 511 and a plurality of fan-shaped frames 512. The reinforcing circular plates 511 are coaxially arranged with the middle ring 121, and the two reinforcing circular plates 511 are arranged at intervals in the vertical direction. The plurality of fan-shaped frames 512 are located between the two reinforcing circular plates 511 in the vertical direction. The plurality of fan-shaped frames 512 are arranged in sequence along the circumference of the reinforcing circular plates 511, and the plurality of fan-shaped frames 512 are arranged around the reinforcing circular plates 511. Two adjacent fan-shaped frames 512 are detachably connected. The upper and lower sides of the fan-shaped frames 512 are detachably connected with the corresponding reinforcing circular plates 511. The side of the fan-shaped frames 512 that is away from the reinforcing circular plates 511 along its own radial direction is in contact with the inner wall of the corresponding middle ring 121. The fan-shaped frames 512 are arranged one by one with the filter units 52, and the filter units 52 are installed in the corresponding fan-shaped frames 512.

[0059] The structural arrangement of the mounting round frame 51 makes it easy to disassemble and assemble the mounting round frame 51 , which facilitates the replacement and maintenance of the mounting round frame 51 .

[0060] Reference Figure 6 and Figure 7 A filter hole group 5121 is provided on the upper and lower sides of the fan-shaped frame 512, and a mounting socket 5122 is provided on the side of the fan-shaped frame 512 radially away from the reinforcing circular plate 511, and several filter hole groups 5121 are connected to the mounting socket 5122, and the filter unit 52 is plugged into the corresponding mounting socket 5122.

[0061] The opening of the mounting socket 5122 on the fan-shaped frame 512 and the opening of the filter hole group 5121 allow the smoke to enter the mounting socket 5122 through the corresponding filter hole group 5121 and then be discharged from the corresponding filter hole group 5121. During this process, the filter unit 52 plugged into the mounting socket 5122 can filter the smoke and reduce the solid impurities in the smoke.

[0062] Reference Figure 4 and Figure 6 A plurality of replacement ports 122 are provided on the outer wall of the middle ring 121, and the replacement ports 122 are arranged one-to-one correspondingly to the installation sockets 5122, and the replacement ports 122 are directly connected to the corresponding installation sockets 5122, the filter unit 52 is plugged into the corresponding replacement port 122, and a pull-out handle 521 is provided on the side of the filter unit 52 away from the reinforcing circular plate 511, and the pull-out handle 521 is located in the corresponding replacement port 122.

[0063] The opening of the replacement port 122 on the middle ring 121 and the provision of the pull-out handle 521 on the filter unit 52 facilitate the disassembly, assembly and replacement of the filter unit 52 on the fan-shaped frame 512 .

[0064] Reference Figure 3 and Figure 4 The outer wall of the middle ring 121 is also provided with a plurality of replacement plates 123, which are arranged one by one with the replacement openings 122, and the replacement plates 123 close the corresponding replacement openings 122, and the replacement plates 123 are detachably connected to the outer wall of the middle ring 121. In this embodiment, the replacement plates 123 are connected to the side wall of the middle ring 121 by bolts.

[0065] The replacement plate 123 is configured to seal the corresponding replacement port 122 to ensure the sealing of the intermediate ring 121 , while also being able to protect the filter unit 52 .

[0066] In this embodiment, refer to Figure 6 The filter unit 52 includes a fan-shaped shell 522, and a plurality of through holes are opened on the upper side, the lower side and both sides along the circumference of the fan-shaped shell 522. The fan-shaped shell 522 is filled with filter material 523, and the pull-out handle 521 is connected to the outer wall of the fan-shaped shell 522.

[0067] Reference Figure 6 and Figure 7 A closed control component 53 is provided on the upper and lower sides of the mounting circular frame 51, and the closed control component 53 includes a plurality of fan-shaped plates 531. The fan-shaped frame 512 is arranged in a one-to-one correspondence with the fan-shaped plates 531, and the upper and lower sides of the fan-shaped frame 512 are connected to the corresponding fan-shaped plates 531. A closed hole group 532 is opened on the fan-shaped plate 531, and the closed hole group 532 is connected to the corresponding filter hole group 5121.

[0068] In this embodiment, the closed hole group 532 and the filtering hole group 5121 are both composed of a plurality of through holes.

[0069] Reference Figure 6 and Figure 7 The fan-shaped plate 531 is slidably connected to the corresponding fan-shaped frame 512 along its corresponding radial direction, and a closed driving member 533 is provided on the fan-shaped frame 512, the driving end of the closed driving member 533 is connected to the fan-shaped plate 531, and the driving direction of the closed driving member 533 is set along the sliding direction of the fan-shaped plate 531. In this embodiment, the closed driving member 533 adopts an electromagnetic push rod or an electric push rod.

[0070] Driven by the closed driving member 533, the fan-shaped plate 531 can move on the corresponding fan-shaped frame 512, which can change the size of the connecting area between the closed hole group 532 and the corresponding filter hole group 5121, so that the fan-shaped plate 531 can open the filter hole group 5121 or close the filter hole group 5121, which can control the filter unit 52 to work or stop working.

[0071] Reference Figure 6 A plurality of first holes 5131 are formed on both side walls of the fan-shaped frame 512 along its circumferential direction, and the first holes 5131 are communicated with the corresponding installation sockets 5122 .

[0072] Reference Figure 5 and Figure 6 The first holes 5131 on the fan-shaped frame 512 are connected to the first holes 5131 on another adjacent fan-shaped frame 512 , thereby forming a smoke hole 513 between the two fan-shaped frames 512 , and the smoke hole 513 connects the installation sockets 5122 in the two adjacent fan-shaped frames 512 .

[0073] Under the action of the smoke holes 513 , smoke entering one sector frame 512 can flow into another adjacent sector frame 512 along the smoke holes 513 , which enables smoke to flow between different sector frames 512 .

[0074] Reference Figure 6 The sector frame 512 is provided with connection control components 54 on both sides of the opposite walls along its own circumference, and the two connection control components 54 have the same structure.

[0075] Reference Figure 6The communication control assembly 54 includes a communication plate 541, which is slidably connected to the side wall of the fan-shaped frame 512, and the sliding direction of the communication plate 541 is arranged along the radial direction corresponding to the fan-shaped frame 512. The communication plate 541 is provided with a plurality of communication holes 542, and the communication holes 542 are arranged one by one corresponding to the first holes 5131, and the communication holes 542 are connected to the corresponding first holes 5131. A communication driving member 543 is arranged on the fan-shaped frame 512, and the driving end of the communication driving member 543 is connected to the communication plate 541, and the driving direction of the communication driving member 543 is arranged along the sliding direction of the communication plate 541. In this embodiment, the communication driving member 543 adopts an electromagnetic push rod or an electric push rod.

[0076] Driven by the connecting driving member 543, the connecting plate 541 can move on the fan-shaped frame 512, which can change the size of the connecting area between the connecting hole 542 and the corresponding first hole 5131, so as to control the opening or closing of the smoke hole 513 between two adjacent fan-shaped frames 512.

[0077] Reference Figure 5 and Figure 6 Under the action of several closed control components 53, a single or multiple fan-shaped frames 512 can be selected to be opened, so that the filter unit 52 for filtering work can be freely selected. Based on this principle, the number and position of the working filter units 52 can be selected, which facilitates timely replacement of the filter units 52.

[0078] On this basis, under the cooperation of several closed control components 53 and several connected control components 54, by controlling the lower side of one fan-shaped frame 512 to be opened, the lower side of another fan-shaped frame 512 to be opened, and the two fan-shaped frames 512 are connected to each other, so that after the flue gas enters the filter mechanism 5, the flue gas will flow from one fan-shaped frame 512 to another fan-shaped frame 512, which can increase the contact time between the flue gas and the filter unit 52 and improve the filtering effect. And in this process, since the spray unit 62 sprays the alkali solution onto the filter unit 52, this can increase the contact time between the flue gas and the alkali solution, thereby improving the flue gas desulfurization effect.

[0079] In this embodiment, refer to Figure 4 and Figure 8 A mounting groove 5141 is provided on the side of the fan-shaped frame 512 radially away from the middle ring 121. The mounting groove 5141 penetrates the fan-shaped frame 512 in the vertical direction. Several mounting grooves 5141 on the fan-shaped frame 512 form a mounting hole 514, and two reinforcing circular plates 511 close the mounting hole 514. Several closed driving members 533 and several connecting driving members 543 are all located in the mounting hole 514.

[0080] The installation grooves 5141 on the fan-shaped frames 512 are provided so that space for installing the closed driving member 533 and the connecting driving member 543 is reserved between the fan-shaped frames 512 , and the two reinforcing circular plates 511 can also protect the closed driving member 533 and the connecting driving member 543 .

[0081] Reference Figure 4 and Fig. 9 The spray mechanism 6 includes a mounting circular plate 61 and a plurality of spray units 62. The mounting circular plate 61 is coaxially arranged in the corresponding intermediate ring 121. The mounting circular plate 61 is located directly above the corresponding mounting circular frame 51. The mounting circular plate 61 and the corresponding intermediate ring 121 are detachably connected. The mounting circular plate 61 is provided with a plurality of air holes 611, and the air holes 611 penetrate the mounting circular plate 61. The spray units 62 are arranged at the lower side of the mounting circular plate 61. The spray units 62 are arranged one by one with the filter units 52, and the spray units 62 are located directly above the corresponding filter units 52.

[0082] Under the action of the spray unit 62 , the flue gas passing through the filter mechanism 5 can be desulfurized, and the flue gas desulfurized by the spray unit 62 will continue to rise through the air holes 611 .

[0083] In this embodiment, refer to Figure 4 and Fig. 9 A plurality of hidden grooves 612 are provided on the lower side of the mounting circular plate 61 . The hidden grooves 612 are arranged one by one corresponding to the spray units 62 . The spray units 62 are installed in the corresponding hidden grooves 612 , and a plurality of air holes 611 are respectively provided at the bottoms of the plurality of hidden grooves 612 .

[0084] Reference Figure 4 and Fig. 9 The spray unit 62 includes a spray main pipe 621, a plurality of spray sub-pipes 622 and a plurality of spray heads 623. The spray main pipe 621 is axially arranged along the corresponding radial direction of the intermediate ring 121, and one end of the spray main pipe 621 extends to the outside of the corresponding intermediate ring 121. The plurality of spray sub-pipes 622 are all connected to the spray main pipe 621. The plurality of spray sub-pipes 622 are arranged in parallel with each other. The plurality of spray sub-pipes 622 are arranged in sequence and evenly spaced along the axial direction of the spray main pipe 621. The plurality of spray heads 623 are respectively arranged at the lower sides of the plurality of spray sub-pipes 622, and the spray heads 623 are connected to the corresponding spray sub-pipes 622. Both ends of the spray sub-pipes 622 in the length direction are connected to the inner side walls of the corresponding hidden grooves 612.

[0085] The structural arrangement of the spraying unit 62 enables each spraying unit 62 to be independently controlled, thereby enabling each spraying unit 62 to spray independently.

[0086] Reference Figure 2 and Figure 4The flue gas desulfurization device further includes a plurality of intermediate flue mechanisms 7, which are located in the cylinder 1 and are arranged in sequence in the vertical direction. A flue space is formed between the filter mechanism 5 and the adjacent spray mechanism 6, and the intermediate flue mechanisms 7 are arranged in a one-to-one correspondence with the flue space, and the intermediate flue mechanisms 7 are located in the corresponding flue space, and the intermediate flue mechanisms 7 are located between the corresponding filter mechanism 5 and the corresponding spray mechanism 6 in the vertical direction.

[0087] Reference Figure 4 and Fig. 9 The intermediate flue mechanism 7 includes a mounting main shaft 71 , which is coaxially arranged with the intermediate ring 121 , one end of the mounting main shaft 71 is coaxially connected with the reinforcing circular plate 511 , and the other end of the mounting main shaft 71 is coaxially connected with the corresponding mounting circular plate 61 .

[0088] Reference Figure 4 and Fig. 9 The intermediate flue mechanism 7 further includes a plurality of partitions 72, which are evenly spaced in sequence along the circumference of the mounting main shaft 71. The length direction of the partition 72 is arranged along the vertical direction, and one side of the partition 72 in the length direction is in contact with the mounting circular plate 61, and the other end is in contact with the corresponding fan-shaped frame 512. The width direction of the partition 72 is arranged along the corresponding radial direction of the mounting main shaft 71, and one side of the partition 72 in the width direction is fixedly connected to the mounting main shaft 71, and the other side is in contact with the inner wall of the corresponding intermediate ring 121.

[0089] Reference Figure 4 and Figure 7 Based on the structural arrangement of the mounting main shaft 71 and the plurality of partitions 72, an independent flue 73 is formed on the outer wall of the mounting main shaft 71, the inner wall of the corresponding intermediate ring 121, and between two adjacent partitions 72. The independent flue 73 is arranged in the vertical direction, and the number of the independent flue 73 is the same as the number of the partitions 72. The independent flue 73 is arranged in one-to-one correspondence with the filter unit 52, one end of the independent flue 73 is arranged opposite to the corresponding filter unit 52, and the other end is arranged opposite to the corresponding spray unit 62. The hidden groove 612 is located in the corresponding independent flue 73, the corresponding plurality of air holes 611 are all connected to the corresponding independent flue 73, and the filter hole groups 5121 on the fan-shaped frame 512 are all located in the corresponding independent flue 73.

[0090] Reference Figure 4 and Figure 7, which makes the flue gas after being filtered by the corresponding filter unit 52 enter the corresponding independent flue 73, and then the corresponding spray unit 62 realizes the desulfurization of the flue gas in the independent flue 73. Based on the setting of several independent flues 73, the flow of flue gas between the filter mechanism 5 and the spray mechanism 6 is more orderly, avoiding the turbulence of flue gas in the cylinder. At the same time, when the corresponding filter unit 52 needs to be replaced, the work of the corresponding filter unit 52 is suspended, and the filter unit 52 is replaced. At this time, other independent flues 73 can work normally, so that the filter unit 52 can be replaced without stopping the flue gas desulfurization device.

[0091] In this embodiment, refer to Figure 2 and Figure 4 , each intermediate ring 121 is provided with a filter mechanism 5, a spray mechanism 6 and two intermediate flue mechanisms 7, and the arrangement relationship of a filter mechanism 5, a spray mechanism 6 and two intermediate flue mechanisms 7 from top to bottom in the intermediate ring 121 is: intermediate flue mechanism 7, spray mechanism 6, intermediate flue mechanism 7 and filter mechanism 5. This means that after several intermediate rings 121 are connected, there is an intermediate flue mechanism 7 between the filter mechanism 5 and the adjacent spray mechanism 6.

[0092] In this embodiment, a maintenance port 124 is provided on the side wall of the middle ring 121, and the maintenance port 124 is arranged in one-to-one correspondence with the independent flue 73, and the maintenance port 124 is communicated with the corresponding independent flue 73. A plurality of maintenance plates 125 are also provided on the outer wall of the middle ring 121, and the maintenance plates 125 are detachably connected to the outer wall of the middle ring 121, and the maintenance plates 125 are arranged in one-to-one correspondence with the maintenance port 124, and the maintenance plates 125 seal the corresponding maintenance port 124. The internal situation of the middle ring 121 can be observed through the maintenance port 124, which is also convenient for the inspection and replacement of the spray unit 62.

[0093] The implementation principle of the embodiment of the present application is: when flue gas desulfurization is carried out, the flue gas is introduced into the bottom of the cylinder 1 through the smoke inlet pipe 2. During the process of the flue gas rising in the cylinder 1, the flue gas is filtered by a plurality of filtering mechanisms 5 and desulfurized by a plurality of spraying mechanisms 6 in turn, and the flue gas after desulfurization is discharged from the exhaust pipe.

[0094] When filtering smoke, according to actual needs, the number of filter units 52 used on each filter mechanism 5 can be freely selected, and the positions of the filter units 52 used on the filter mechanism 5 can also be freely selected.

[0095] When it is necessary to extend the retention time of smoke in a single filter mechanism 5, through the cooperation of several closed control components 53, select the corresponding filter hole group 5121 on the lower side of one filter unit 52 to open, and the corresponding filter hole group 5121 on the upper side of another filter unit 52 to open, and all the remaining filter hole groups 5121 are closed; through the cooperation of several connecting control components 54, the smoke hole 513 between the two selected filter units 52 is opened. At this time, the smoke can only enter the filter mechanism 5 from the bottom of the corresponding filter unit 52, and the smoke needs to pass through all the filter units 52 between the two selected filter units 52 in sequence, and finally flow out of the filter mechanism 5 from the top of the corresponding filter unit 52. This can extend the retention time of smoke in the filter mechanism 5 and improve the filtering effect.

[0096] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flue gas desulfurization device, characterized in that: include: A cylinder (1), the outer side of the cylinder (1) being connected to a smoke inlet pipe (2), the top of the cylinder (1) being connected to a smoke outlet pipe (3), a filtering mechanism (5) and a spraying mechanism (6) being arranged inside the cylinder (1), the spraying mechanism (6), the filtering mechanism (5) and the smoke inlet pipe (2) being arranged in sequence from top to bottom; The filtering mechanism (5) comprises a mounting frame (51) and a plurality of filtering units (52); the mounting frame (51) is coaxially arranged in the cylinder (1); the mounting frame (51) is connected to the inner wall of the cylinder (1); a plurality of mounting sockets (5122) are provided on the outer side of the mounting frame (51); the filtering units (52) and the mounting sockets (5122) are arranged in a one-to-one correspondence; the filtering units (52) are plugged into and matched with the corresponding mounting sockets (5122); A plurality of filter hole groups (5121) are provided through the upper side of the mounting circular frame (51), the filter hole groups (5121) are arranged in one-to-one correspondence with the mounting sockets (5122), and the filter hole groups (5121) are in communication with the corresponding mounting sockets (5122); A plurality of replacement ports (122) are provided on the outside of the cylinder (1), the replacement ports (122) being arranged in one-to-one correspondence with the installation sockets (5122), the replacement ports (122) being directly connected to the corresponding installation sockets (5122), and the filter units (52) being plugged into and matched with the corresponding replacement ports (122).

2. A flue gas desulfurization device according to claim 1, characterized in that: The upper and lower sides of the mounting circular frame (51) are both provided with a closed control assembly (53), the closed control assembly (53) comprising a plurality of fan-shaped plates (531), the fan-shaped plates (531) being slidably connected to the upper side or the lower side of the mounting circular frame (51), the fan-shaped plates (531) being arranged in a one-to-one correspondence with the filter hole groups (5121), and the fan-shaped plates (531) close the corresponding filter hole groups (5121); A plurality of closed driving members (533) are arranged on the mounting frame (51), the closed driving members (533) being arranged in one-to-one correspondence with the fan-shaped plates (531), the driving ends of the closed driving members (533) being connected to the corresponding fan-shaped plates (531), and the closed driving members (533) being used to drive the fan-shaped plates (531) to slide open or close the corresponding filter hole groups (5121).

3. A flue gas desulfurization device according to claim 2, characterized in that: A smoke vent (513) is provided on the inner side wall of the installation socket (5122), and the smoke vent (513) is connected to two adjacent installation sockets (5122); A plurality of communication control components (54) are arranged on the mounting circular frame (51), the communication control components (54) being arranged in a one-to-one correspondence with the smoke vent holes (513), and the communication control components (54) being used to control the opening and closing of the corresponding smoke vent holes (513).

4. A flue gas desulfurization device according to claim 3, characterized in that: A plurality of the filtering mechanisms (5) and the spraying mechanisms (6) are provided, the filtering mechanisms (5) and the spraying mechanisms (6) are provided in one-to-one correspondence, the spraying mechanisms (6) are located directly above the corresponding filtering mechanisms (5), and a plurality of the filtering mechanisms (5) and a plurality of the spraying mechanisms (6) are arranged alternately in sequence along the vertical direction.

5. A flue gas desulfurization device according to claim 4, characterized in that: The cylinder (1) comprises a base (11), an upper cover (13) and a plurality of intermediate rings (121); the plurality of intermediate rings (121) are arranged in sequence along their own axis; the intermediate rings (121) are located between the upper cover (13) and the base (11) along their own axial direction; the base (11) and adjacent intermediate rings (121), the upper cover (13) and adjacent intermediate rings (121), and two adjacent intermediate rings (121) are all detachably connected; the smoke inlet pipe (2) is connected to the base (11); and the smoke outlet pipe (3) is connected to the upper cover (13); The intermediate ring (121) and the filtering mechanism (5) are arranged in a one-to-one correspondence; the filtering mechanism (5) and the corresponding spraying mechanism (6) are both located in the corresponding intermediate ring (121); and the filtering mechanism (5) and the corresponding spraying mechanism (6) are both connected to the corresponding intermediate ring (121).

6. A flue gas desulfurization device according to claim 4, characterized in that: An intermediate flue mechanism (7) is provided between the filtering mechanism (5) and the adjacent spraying mechanism (6); The intermediate flue mechanism (7) comprises a mounting main shaft (71) and a plurality of partitions (72), wherein the mounting main shaft (71) is located in the cylinder (1), the mounting main shaft (71) is coaxially arranged with the cylinder (1), the plurality of partitions (72) are arranged on the side wall of the mounting main shaft (71), the plurality of partitions (72) are arranged in sequence at intervals along the circumference of the mounting main shaft (71), an outer side wall of the mounting main shaft (71), an inner side wall of the cylinder (1) and two adjacent partitions (72) form independent flues (73), and the plurality of independent flues (73) are arranged independently of each other; The spray mechanism (6) comprises a plurality of spray units (62), the spray units (62) being arranged in one-to-one correspondence with the filter units (52), and the spray units (62) and the corresponding filter units (52) being arranged facing each other in the vertical direction; The independent flue (73) and the filter unit (52) are arranged in a one-to-one correspondence, the corresponding filter hole group (5121) is located in the corresponding independent flue (73), and the corresponding spray unit (62) is located in the independent flue (73).

7. A flue gas desulfurization device according to claim 6, characterized in that: The outer wall of the cylinder (1) is provided with a plurality of maintenance openings (124), the maintenance openings (124) being arranged in one-to-one correspondence with the independent flues (73), and the maintenance openings (124) being in communication with the corresponding independent flues (73); A plurality of maintenance plates (125) are provided on the outer wall of the cylinder (1); the maintenance plates (125) are detachably connected to the outer wall of the cylinder (1); the maintenance plates (125) are arranged in one-to-one correspondence with the maintenance openings (124); and the maintenance plates (125) seal the corresponding maintenance openings (124).

8. A flue gas desulfurization device according to claim 2, characterized in that: The mounting circular frame (51) comprises a plurality of sector-shaped frames (512), wherein the plurality of sector-shaped frames (512) are sequentially arranged along the circumference of the cylinder (1), and two adjacent sector-shaped frames (512) are detachably connected; The fan-shaped frame (512) and the filter unit (52) are arranged in a one-to-one correspondence, the installation socket (5122) is provided on the outer side wall of the corresponding fan-shaped frame (512), and the corresponding filter hole group (5121) is provided on the corresponding fan-shaped frame (512), the fan-shaped plate (531) is arranged on the upper side or the lower side of the fan-shaped frame (512), the fan-shaped plate (531) is slidably connected to the fan-shaped frame (512), and the closed driving member (533) is provided on the corresponding fan-shaped frame (512).

9. A flue gas desulfurization device according to claim 1, characterized in that: A plurality of replacement plates (123) are arranged on the outside of the cylinder (1); the replacement plates (123) are detachably connected to the outside of the cylinder (1); the replacement plates (123) are arranged in one-to-one correspondence with the replacement openings (122), and the replacement plates (123) seal the corresponding replacement openings (122).

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