Flue dust arrestor and flue dust removal device

Abstract

The application provides a flue dust arrester and a flue dust removal device. The flue dust arrester comprises a dust arrester tank body, a flue gas outlet, a flue gas inlet, a flue gas dust arrester rotating barrel and a sewage collection pool. The flue gas outlet is arranged on the top of the dust arrester tank body and used for flue gas discharge. The flue gas inlet is arranged on the lower side of the dust arrester tank body and used for flue gas input. The flue gas dust arrester rotating barrel is arranged on the lower part of the dust arrester tank body, receives the flue gas input from the flue gas inlet and blocks the particulate matters and water vapor in the flue gas. The sewage collection pool is arranged on the lower part of the dust arrester tank body and connected with the dust arrester tank body and used for collecting the sewage from the flue gas dust arrester rotating barrel. According to the technical scheme of the application, the particulate matters and water vapor in the flue gas can be blocked, and the equipment cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of environmental protection technology, specifically to a flue dust arrester and a flue dust removal device. Background Technology

[0002] A dust collector, also called a dust filter, is a device that separates dust from flue gas. The performance of a dust collector is expressed by the amount of gas it can handle, the resistance loss of the gas passing through the dust collector, and the dust removal efficiency.

[0003] With the continuous improvement of national standards for air pollutant emissions and the upgrading and improvement of smoke and dust emission management, industrial flue gas carries smoke and dust, which requires ultra-low emission treatment. The smoke and dust are carried by the water vapor in the flue gas and emitted. If large-scale equipment is used, the investment is often huge, which will burden the operation of enterprises. Therefore, while achieving the treatment of smoke and dust and water vapor, the price, operation and maintenance costs, service life and ease of operation and management of dust collectors are also important factors to consider.

[0004] To address the common problems in the industry, an environmentally friendly device is needed that can reduce equipment costs while blocking particulate matter and water vapor in flue gas. Summary of the Invention

[0005] This application aims to provide a flue dust arrester and a flue dust removal device that can reduce equipment costs while blocking particulate matter and water vapor in flue gas.

[0006] According to one aspect of this application, a flue dust collector is provided, comprising: a dust collector tank, a flue gas outlet, a flue gas inlet, a flue gas dust-blocking vortex, and a wastewater collection tank, wherein:

[0007] The flue gas outlet is located at the top of the dust collector tank and is used for flue gas discharge.

[0008] The flue gas inlet is located on the lower side of the dust collector tank and is used for flue gas input;

[0009] The flue gas dust-blocking vortex is located at the lower part of the dust collector tank, receiving flue gas input from the flue gas inlet and blocking particulate matter and water vapor in the flue gas.

[0010] The wastewater collection tank is located at the lower part of the dust collector tank and connected to the dust collector tank, and is used to collect wastewater from the flue gas dust collector vortex.

[0011] According to some embodiments, the flue gas outlet is a frustum-shaped barrel structure, with the large-diameter end connected to the dust collector tank and the small-diameter end serving as the exhaust port.

[0012] According to some embodiments, the flue gas inlet is arranged along the tangential direction of the dust collector tank.

[0013] According to some embodiments, the flue gas dust-blocking swirl barrel includes a dust-blocking truncated cone barrel, which has a truncated cone-shaped barrel structure that is larger at the top and smaller at the bottom.

[0014] According to some embodiments, the flue gas dust-blocking swirl barrel further includes a water-blocking ring plate, the outer edge of which is connected to the inner wall of the dust collector tank, and the inner edge of which is connected to the large-diameter end of the dust-blocking cone barrel to prevent flue gas from rising.

[0015] According to some embodiments, the flue gas dust-blocking swirl includes a wastewater collection tank connected to the small-diameter end of the dust-blocking cone for wastewater collection.

[0016] According to some embodiments, the flue gas dust-blocking vortex also includes a sewage pipe, one end of which is at the bottom of the sewage collection tank and the other end is introduced into the sewage collection pool, so as to introduce the sewage collected in the sewage collection tank into the sewage collection pool.

[0017] According to some embodiments, the sewage collection tank and the dust collector tank adopt an integrated and / or separate structure.

[0018] According to some embodiments, the flue dust arrester is used to be installed at the bottom of the chimney, the diameter of the flue dust arrester is equal to the inner diameter of the chimney, and it is connected to the chimney.

[0019] According to another aspect of this application, a flue gas dust removal device is provided, which can achieve the flue gas dust arrester as described above.

[0020] According to an embodiment of this application, flue gas enters the flue gas dust-blocking vortex from the flue gas inlet side in a rotating manner. Inside the vortex, water vapor and particulate matter in the flue gas, under the action of centrifugal force and wind pressure, rotate and descend around the vortex, gradually condensing into water droplets during their descent and falling into the wastewater collection tank. The dust-removed flue gas overflows from the vortex and is discharged from the flue gas outlet. This simple structural design achieves the dust removal target, replacing current large-scale flue gas dehydration and dust removal equipment, reducing equipment costs for enterprises, and enabling more widespread application of environmental protection equipment in small and medium-sized enterprises.

[0021] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 A schematic diagram of an apparatus for a flue dust arrester according to an example embodiment is shown.

[0024] Figure 2 A schematic diagram of the flue gas flow direction for a flue dust collector according to an example embodiment is shown.

[0025] Figure 3 A schematic diagram of the flue gas outlet section for a flue dust collector according to an example embodiment is shown.

[0026] Figure 4 An enlarged view of a flue gas dust-blocking vortex drum for a flue dust collector according to an example embodiment is shown.

[0027] Figure 5A A schematic diagram of a flue gas dust-blocking vortex drum component for a flue dust collector according to an example embodiment is shown.

[0028] Figure 5B A schematic diagram of a flue gas dust-blocking vortex drum component for a flue dust collector according to an example embodiment is shown. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0030] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0031] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0032] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0033] It should be understood that although the terms first, second, third, etc., may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another. Therefore, the first component discussed below may be referred to as the second component without departing from the teachings of this application. As used herein, the term "and / or" includes all combinations of any one and more of the associated listed items.

[0034] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of exemplary embodiments, and the modules or processes in the drawings are not necessarily essential for implementing this application, and therefore cannot be used to limit the scope of protection of this application.

[0035] A dust collector, also called a dust filter, is a device that separates dust from flue gas. The performance of a dust collector is expressed by the amount of gas it can handle, the resistance loss of the gas passing through the dust collector, and the dust removal efficiency.

[0036] With the continuous improvement of national standards for air pollutant emissions and the upgrading and improvement of smoke and dust emission management, industrial flue gas carries smoke and dust, which requires ultra-low emission treatment. The smoke and dust are carried by the water vapor in the flue gas and emitted. If large-scale equipment is used, the investment is often huge, which will burden the operation of enterprises. Therefore, while achieving the treatment of smoke and dust and water vapor, the price, operation and maintenance costs, service life and ease of operation and management of dust collectors are also important factors to consider.

[0037] To address a common problem in the industry, a flue gas cone dust collector was invented, which can effectively block particulate matter and water vapor in flue gas while reducing equipment costs. According to an embodiment, flue gas enters the flue gas dust-blocking vortex from the flue gas inlet side. Inside the vortex, water vapor and particulate matter in the flue gas, under the action of centrifugal force and wind pressure, rotate and fall around the vortex, gradually condensing into water droplets during their descent and falling into the wastewater collection tank. The dust-removed flue gas overflows from the vortex and is discharged from the flue gas outlet. This simple structural design achieves the dust removal goal, replacing current large-scale dust removal equipment, reducing equipment costs for enterprises, and enabling more widespread application of environmental protection equipment in small and medium-sized enterprises.

[0038] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application.

[0039] Figure 1 A schematic diagram of an apparatus for a flue dust arrester according to an example embodiment is shown.

[0040] See Figure 1 The figure shows a flue dust collector, including: a dust collector tank 01, a flue gas outlet 02, a flue gas inlet 03, a flue gas dust-blocking vortex 04, and a wastewater collection tank 05, wherein:

[0041] The dust collector tank 01 includes a flue gas passage connected to the flue gas outlet 02 for transmitting flue gas.

[0042] According to some embodiments, the dust collector tank 01 is a hollow cylindrical structure with the middle serving as a flue gas passage. The flue gas passage is connected to the flue gas outlet 02. Under the action of wind pressure, the flue gas passes through the flue gas passage and is discharged through the flue gas outlet 02, thus completing the flue gas dust removal.

[0043] The flue gas outlet 02 is located at the top of the dust collector tank 01 and is used for flue gas discharge.

[0044] According to some embodiments, the flue gas outlet 02 is located at the top of the dust collector tank 01. The flue gas outlet is also a barrel-shaped structure, but the difference is that the flue gas outlet is a truncated cone shape with a smaller top and a larger bottom. The end with the smaller diameter serves as the flue gas outlet to discharge flue gas.

[0045] According to some embodiments, the flue gas outlet section 02 can adjust the flue gas velocity at the outlet by designing the cross-sectional size of the flue gas outlet and the wind speed in the flue gas channel, so as to meet the flue gas velocity requirements of subsequent equipment.

[0046] The flue gas inlet 03 is located on the lower side of the dust collector tank 01 and is used for flue gas input.

[0047] According to some embodiments, the flue gas inlet 03 is located on the lower side of the dust collector tank 01, and the flue gas inlet direction is the tangential direction of the dust collector tank. Under the action of wind pressure, the flue gas enters from the flue gas inlet.

[0048] According to some embodiments, the flue gas inlet 03 can be obliquely welded to the lower side of the dust collector tank 01, with the welding direction being the tangential direction of the dust collector tank, or the exhaust pipe of the previous device can be inserted into the lower side of the dust collector tank along the tangential direction. The specific implementation method can be selected according to different actual application scenarios while ensuring the technical objectives.

[0049] The flue gas dust-blocking vortex 04 is located at the lower part of the dust collector tank 01, receiving flue gas input from the flue gas inlet 03 and blocking particulate matter and water vapor in the flue gas.

[0050] According to some embodiments, the flue gas dust-blocking vortex 04 receives flue gas input from the flue gas inlet 03, and the flue gas descends along the flue gas dust-blocking vortex 04. Water vapor and particulate matter in the flue gas fall into the wastewater collection tank of the flue gas dust-blocking vortex 04 during the descent.

[0051] According to some embodiments, the flue gas dust-blocking swirl 04 is located inside the dust collector tank 01 and at the lower part of the dust collector tank 01. After passing through the flue gas dust-blocking swirl 04, the flue gas overflows from below the flue gas dust-blocking swirl 04 and is discharged from the flue gas outlet after passing through the flue gas channel.

[0052] The wastewater collection tank 05 is located at the lower part of the dust collector tank 01 and connected to the dust collector tank 01, and is used to collect wastewater from the flue gas dust collector vortex 04.

[0053] According to some embodiments, the wastewater collection tank 05 is located below the dust collector tank 01 and is used to collect wastewater from the flue gas dust collector swirl tank 04.

[0054] According to some embodiments, the sewage collection tank 05 is located below the dust collector tank 01 and connected to the dust collector tank 01. Depending on the actual scenario and scale limitations, the sewage collection tank 05 can be integrated with the dust collector tank 01, or it can be constructed as a separate sewage treatment tank 05 structure, with the dust collector tank 01 installed on the sewage collection tank 05. It should be noted that, regardless of whether it is an integrated structure or a separate structure, the sealing of the connection between the sewage collection tank 05 and the dust collector tank 01 must be ensured to prevent pollutant leakage and affect the flue gas flow direction.

[0055] Figure 2 A schematic diagram of the flue gas flow direction for a flue dust collector according to an example embodiment is shown.

[0056] See Figure 2 The flue gas enters the flue gas dust-blocking vortex 04 from the flue gas inlet 03. After being blocked and settled by the flue gas dust-blocking vortex 04, the particulate matter and water vapor in the flue gas fall and are collected by the flue gas dust-blocking vortex 04, and flow into the sewage collection tank 05 as sewage. The flue gas after dust removal passes through the flue gas channel of the dust collector tank 01 and is discharged through the flue gas outlet 02.

[0057] According to some embodiments, flue gas enters the flue gas dust-blocking vortex 04 tangentially from the flue gas inlet 03. Under the action of wind pressure, the flue gas swirls and falls along the flue gas dust-blocking vortex 04. During the falling process, particulate matter and water vapor in the flue gas are left in the collection tank at the bottom of the flue gas dust-blocking vortex 04, and then the flue gas dust-blocking vortex 04 discharges the collected wastewater into the wastewater collection tank 05.

[0058] According to some embodiments, the flue gas after dust removal by the flue gas dust-blocking vortex drum 04 is discharged through the flue gas passage of the dust collector tank 01 and then through the flue gas outlet 02.

[0059] Figure 3A schematic diagram of the flue gas outlet section for a flue dust collector according to an example embodiment is shown.

[0060] See Figure 3 The flue gas outlet 02 is a truncated cone-shaped barrel structure, with the large-diameter end connected to the dust collector tank and the small-diameter end serving as the exhaust port.

[0061] According to some embodiments, the flue gas outlet 02 is a frustum-shaped barrel structure that forms a channel for flue gas to pass through. The large-diameter end is connected to the dust collector tank 01, and the small-diameter end serves as the exhaust port.

[0062] According to some embodiments, the frustum-shaped barrel structure of the flue gas outlet 02 is designed to meet the requirements of subsequent environmental protection equipment for flue gas velocity. Specifically, the flue gas velocity at the flue gas outlet can be adjusted by designing the cross-sectional size of the flue gas outlet to meet the requirements of subsequent equipment for flue gas velocity.

[0063] The flue gas inlet 03 is arranged along the tangential direction of the dust collector tank.

[0064] According to some embodiments, see Figure 2 The flue gas inlet 03 is arranged along the tangential direction of the dust collector tank. The flue gas inlet 03 can be a flue gas inlet pipe that is obliquely welded to the tangential direction of the dust collector tank 01, etc. The specific implementation method can be flexibly selected according to different actual application scenarios while ensuring the technical objectives. It will not be elaborated further here.

[0065] Figure 4 An enlarged view of a flue gas dust-blocking vortex drum for a flue dust collector according to an example embodiment is shown.

[0066] Figure 5A A schematic diagram of a flue gas dust-blocking vortex for a flue dust collector according to an example embodiment is shown.

[0067] See Figure 4 and Figure 5A In Figure (A), the flue gas dust blocking swirl barrel 04 includes a dust blocking cone barrel 0403, which has a cone-shaped barrel structure that is larger at the top and smaller at the bottom.

[0068] According to some embodiments, the flue gas dust-blocking vortex 04 includes a dust-blocking frustum 0403, which has a truncated cone-shaped structure that is larger at the top and smaller at the bottom. Flue gas enters tangentially into the flue formed by the dust-blocking frustum 0403 and the inner wall of the dust collector tank. The flue gas rotates and descends around the dust-blocking frustum 0403, and during its descent, water vapor and particles gradually condense into wastewater droplets that fall down.

[0069] See Figure 4 and Figure 5AIn Figure (B), the flue gas dust blocking vortex 04 includes a water baffle ring 0401. The outer edge of the water baffle ring 0401 is connected to the inner wall of the dust blocker tank 01, and the inner edge of the water baffle ring 0403 is connected to the large-diameter end of the dust blocking cone 01 to block the flue gas from rising.

[0070] According to some embodiments, see Figure 5A In Figure (B), the water-blocking ring plate 0401 is a concentric circular ring plate. The outer edge of the water-blocking ring plate 0401 is connected to the inner wall of the dust collector tank 01. The outer edge of the water-blocking ring plate 0401 can be welded to the inner wall of the dust collector tank 01. The inner edge of the water-blocking ring plate 0403 is connected to the large-diameter end of the dust-blocking cone 01. Similarly, welding or screw fastening can be used, as long as a reliable connection is ensured.

[0071] According to some embodiments, the baffle ring 0401 is connected above the flue gas inlet. After the flue gas enters from the flue gas inlet, it cannot rise due to the obstruction of the baffle ring 0401.

[0072] Figure 5B A schematic diagram of a flue gas dust-blocking vortex for a flue dust collector according to an example embodiment is shown.

[0073] See Figure 4 and Figure 5B In Figure (C), the flue gas dust-blocking vortex 04 includes a sewage collection tank 0405, which is connected to the small-diameter end of the dust-blocking cone 0403 for sewage collection.

[0074] According to some embodiments, the lower end of the flue gas dust blocking vortex 04 has a sewage collection tank 0405, which is connected to the small diameter end of the dust blocking cone 0403. The sewage collection tank 0405 is also a ring structure, surrounding the small diameter end of the dust blocking cone 0403 to collect the condensed sewage.

[0075] See Figure 4 and Figure 5B As shown in Figure (D), the flue gas dust blocking vortex 04 also includes a sewage pipe 0407, one end of which is at the bottom of the sewage collection tank 0405, and the other end is introduced into the sewage collection pool 05 to introduce the sewage collected by the sewage collection tank 0405 into the sewage collection pool 05.

[0076] According to some embodiments, a drain pipe 0407 is provided at the bottom of the sewage collection tank 0405 of the flue gas dust blocking vortex 04. One end of the drain pipe 0407 is connected to the bottom of the sewage collection tank 0405, which can be achieved by welding, and the other end is introduced into the sewage collection pool 05 to introduce the sewage collected by the sewage collection tank 0405 into the sewage collection pool 05.

[0077] According to some embodiments, the sewage discharge function of the sewage pipe 0407 can also be achieved by drilling a hole at the bottom of the sewage collection tank 0405 as a sewage outlet, and reserving some slope inside the sewage collection tank 0405 to guide the sewage to the sewage outlet.

[0078] The sewage collection tank 05 and the dust collector tank 01 are either integrated or separate structures.

[0079] According to some embodiments, the wastewater collection tank 05 is located below the dust collector tank 01. Depending on the actual scenario and the scale of flue gas treatment, the wastewater collection tank 05 can be an integral structure with the dust collector tank 01, or it can be a separate structure, where the wastewater collection tank 05 is constructed separately and the dust collector tank 01 is installed on the wastewater collection tank 05. Regardless of whether it is an integral or separate structure, the sealing between the wastewater collection tank 05 and the dust collector tank 01 must be ensured to prevent pollutant leakage or to prevent poor sealing from affecting the flue gas flow direction.

[0080] According to some embodiments, the flue gas velocity at the flue gas inlet is approximately twice the flue gas velocity at the flue gas outlet to improve dust blocking efficiency. Generally, the flue gas velocity decreases as it passes through the flue gas dust blocking vortex 04, and further decreases in the dust collector tank 01. Therefore, appropriately increasing the flue gas velocity at the flue gas inlet can improve dust blocking efficiency. Based on some practical experience, the dust blocking efficiency is better when the flue gas velocity at the flue gas inlet is approximately twice the flue gas velocity at the flue gas outlet.

[0081] According to some embodiments, the flue dust arrester is installed at the bottom of the chimney, and the diameter of the flue dust arrester is equal to the inner diameter of the chimney, and it is connected to the chimney. The diameter of the flue gas inlet can be set to the diameter of the exhaust port of the upstream equipment.

[0082] According to some embodiments, in the design of the flue gas dust-blocking vortex in this application, based on the structural design of the flue gas dust-blocking vortex, water vapor and particulate matter in the flue gas rotate and fall around the flue gas dust-blocking vortex under the action of centrifugal force and wind pressure. During the falling process, they gradually condense into water droplets and fall into the sewage collection pool. Compared with the complex structure of large dust removal equipment, it is simpler, more reliable and more practical.

[0083] According to some embodiments, in this application design, the dust-removed flue gas overflows from the flue gas dust-blocking vortex and is discharged from the flue gas outlet. This simple structural design achieves the dust removal objective, replacing current large-scale dust removal equipment, reducing enterprise equipment costs, and enabling more widespread application of environmental protection equipment in small and medium-sized enterprises.

[0084] Furthermore, those skilled in the art will understand that the above-described device may contain only the components necessary to implement the embodiments of this specification, and need not contain all the components shown in the figures.

[0085] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0086] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0087] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0088] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0089] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0090] The exemplary embodiments of this application have been specifically shown and described above. It should be understood that this application is not limited to the detailed structures, arrangements, or implementation methods described herein; rather, this application is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended provisions.

Claims

1. A flue dust arrester, characterized in that, include: The components include: dust collector tank, flue gas outlet, flue gas inlet, flue gas dust collection vortex, and wastewater collection tank. The flue gas outlet is located at the top of the dust collector tank and is used for flue gas discharge. The flue gas inlet is located on the lower side of the dust collector tank and is used for flue gas input; The flue gas dust-blocking vortex is located at the lower part of the dust collector tank, receiving flue gas input from the flue gas inlet and blocking particulate matter and water vapor in the flue gas. The wastewater collection tank is located at the lower part of the dust collector tank and connected to the dust collector tank, and is used to collect wastewater from the flue gas dust collection cyclone. The flue gas dust-blocking swirl drum includes a dust-blocking frustum drum, which has a truncated cone-shaped structure that is larger at the top and smaller at the bottom. The flue gas dust-blocking swirl also includes a water-baffle ring plate. The outer edge of the water-baffle ring plate is connected to the inner wall of the dust collector tank, and the inner edge of the water-baffle ring plate is connected to the large-diameter end of the dust-blocking cone, thus preventing the flue gas from rising. The flue gas dust-blocking swirl tank also includes a wastewater collection tank connected to the smaller diameter end of the dust-blocking cone for wastewater collection. The flue gas dust-blocking vortex also includes a sewage discharge pipe, one end of which is at the bottom of the sewage collection tank and the other end is introduced into the sewage collection pool, so as to introduce the sewage collected in the sewage collection tank into the sewage collection pool.

2. The flue dust arrester according to claim 1, characterized in that, The flue gas outlet is a truncated cone-shaped barrel structure, with the large-diameter end connected to the dust collector tank and the small-diameter end serving as the exhaust port.

3. The flue dust arrester according to claim 1, characterized in that, The flue gas inlet is located along the tangent of the dust collector tank.

4. The flue dust arrester according to claim 1, characterized in that, The sewage collection tank and the dust collector tank are either integrated or separate structures.

5. The flue dust arrester according to claim 1, characterized in that, The flue dust arrester is installed at the bottom of the chimney, and the diameter of the flue dust arrester is equal to the inner diameter of the chimney, and it is connected to the chimney.

6. A flue gas dust removal device, characterized in that, Includes the flue dust arrester as described in any one of claims 1-5.

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