Particle collection device

Abstract

This utility model provides a particle collection device, relating to the field of dust removal equipment technology. It includes an inner structure, an outer structure, and a particle collection module. The upper part of the inner structure has an air inlet, and the maximum radial dimension of the inner structure is greater than its minimum radial dimension. The inner structure has a hoisting structure for connecting to the upper structure. The outer structure is fitted outside the inner structure, and the lower part of the outer structure has an air outlet. The outer and inner structures are separated by a predetermined distance in the radial direction, forming a particle collection area between them. A support structure is provided on the outer structure. The particle collection module is located within the particle collection area. This utility model, by adopting a non-cylindrical cross-section design and a split load-bearing structure, effectively improves spatial adaptability and layout flexibility, reduces the installation size requirements in a single direction, and distributes the equipment weight to different height stress points, thus reducing the requirements on the factory structure.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a particle collection device. Background Technology

[0002] With the increasing awareness of energy conservation and environmental protection among domestic enterprises, the recovery of waste heat from converter flue gas and dry dust removal technology have become important research directions in the environmental protection field. Converter steelmaking is an intermittent production method. During normal smelting, the generated flue gas is characterized by high temperature, large flow rate, high dust content, fast pipeline flow velocity, and high CO concentration. To prevent explosions caused by high-temperature particles (especially micrometer-sized particles with an average particle size of not less than 50 μm) carried in the flue gas, efficient separation of these particles must be completed before waste heat recovery to ensure the safe and stable operation of the system.

[0003] Currently, various technologies are widely used for the separation and capture of micrometer-sized particles in flue gas, mainly including wet or semi-dry separation, cyclone separation, and bag filter separation. These technologies primarily rely on gravity, centrifugal force, inertial force, or resistance to separate particles from the flue gas, but each has significant limitations. Wet or semi-dry separation technologies consume large amounts of water, and under high-temperature conditions, dust particles (mainly Fe2O3) are prone to physicochemical changes upon contact with water, affecting the subsequent resource utilization of the dust. Cyclone separation technology easily forms eddies in the flue, leading to an unstable flow field, limited separation efficiency, and insufficient capture capacity for fine particles. Although bag filter separation technology has high capture efficiency, the system pressure loss is large, and because high-temperature flue gas can easily damage the filter bags, its applicable temperature range is limited, making it difficult to operate stably for a long time under the high-temperature conditions of a converter.

[0004] To overcome the aforementioned shortcomings, inclined plate settling technology was subsequently developed. This technology employs a completely dry operation, relying on gravity settling to achieve particle separation. It boasts advantages such as high efficiency, simple structure, and strong adaptability, making it widely applicable to intermittent operating conditions with frequent changes in high, medium, and low temperatures and flow velocities. Inclined plate settling devices are typically in the form of a sleeve. After entering through the inner structure, the flue gas passes through baffles and multiple inclined plate structures, increasing the flow area and reducing the flow velocity, thereby achieving effective capture of micrometer-sized particles and significantly reducing the risk of explosion. However, existing inclined plate settling devices mostly adopt a cylindrical structure, and the inner structure is generally fixed to the outer structure before overall installation. This often results in space constraints during on-site installation, limiting its applicability. Especially in the existing process layouts of steel enterprises, installation locations are often narrow and structurally complex, making it difficult to flexibly arrange conventional cylindrical equipment, thus restricting its widespread application. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a particle collection device for improving the flexibility of arrangement and achieving efficient particle collection.

[0006] The above-mentioned objective of this utility model can be achieved by the following technical solution: This utility model provides a particle collection device, comprising:

[0007] The inner layer structure has an air inlet at its upper part for allowing flue gas to enter, the maximum radial dimension of the inner layer structure is greater than the minimum radial dimension of the inner layer structure, and the inner layer structure has a hoisting structure for connecting to the upper layer structure.

[0008] An outer layer structure is sleeved on the outside of the inner layer structure. The lower part of the outer layer structure is provided with an air outlet. The outer layer structure and the inner layer structure are separated by a predetermined distance in the radial direction. A particle trapping area is formed between the outer layer structure and the inner layer structure. The outer layer structure is provided with a support structure for connecting the lower layer structure.

[0009] A particle collection module is disposed in the particle collection area.

[0010] In a preferred embodiment of the present invention, the hoisting structure includes multiple hoisting rods connected to the inner structure, and the inner structure is hoisted to the upper structure via the hoisting rods.

[0011] In a preferred embodiment of the present invention, the support structure includes a plurality of support seats that are connected to the sidewall of the outer structure, and the outer structure is fixed to the lower structure through the support seats.

[0012] In a preferred embodiment of the present invention, the inner layer structure includes a plurality of first water-cooling pipes spaced apart in a ring, and a first filling structure disposed between adjacent first water-cooling pipes. The first water-cooling pipes and the first filling structure cooperate to form an inner cylinder, and the inner cylinder is provided with multiple layers of openings for flue gas to pass through.

[0013] In a preferred embodiment of the present invention, the particle collection device further includes a plurality of second water-cooling pipes spaced around the periphery of the first water-cooling pipe, and the particle collection module includes a plurality of inclined plates, which are disposed on the second water-cooling pipes; the inclined plates are inclined downward along the direction from the inner layer structure to the outer layer structure; and the plurality of inclined plates are arranged at intervals along the height direction.

[0014] In a preferred embodiment of the present invention, the bottom of the inner layer structure is provided with an inwardly tapered section, and the bottom of the tapered section is provided with a drop opening.

[0015] In a preferred embodiment of the present invention, the outer layer structure includes a plurality of third water-cooling pipes spaced apart in a ring, and a second filling structure disposed between adjacent third water-cooling pipes, wherein the third water-cooling pipes and the second filling structure cooperate to form an outer cylinder.

[0016] In a preferred embodiment of the present invention, the outer side of the outer cylinder is provided with an outer wall, and a heat insulation layer is provided between the outer wall and the third water-cooling pipe.

[0017] In a preferred embodiment of the present invention, the inner layer structure includes two first rectangular sidewalls spaced apart from each other, and two first arcuate sidewalls disposed at opposite ends of the two first rectangular sidewalls.

[0018] In a preferred embodiment of the present invention, the cross-section of the arc-shaped sidewall is semi-circular.

[0019] In a preferred embodiment of the present invention, the particle collection device further includes an ash hopper disposed below the particle collection area, and the bottom of the ash hopper is provided with an ash outlet.

[0020] In a preferred embodiment of the present invention, the particle collection device further includes a compensator disposed between the inner layer structure and the outer layer structure, the compensator being used to absorb the displacement difference between the inner layer structure and the outer layer structure caused by heating.

[0021] The technical solution of this utility model has the following significant beneficial effects:

[0022] The particle trapping device of this invention, through its non-cylindrical cross-section design and split-type load-bearing structure, effectively improves spatial adaptability and layout flexibility, reduces the installation size requirements in a single direction, and distributes the weight of the equipment to different height stress points, thus reducing the requirements on the plant structure. Furthermore, by designing and manufacturing the particle trapping device in sections, the manufacturing, transportation, and installation processes are simplified, component size and weight are reduced, and installation efficiency is improved. In addition, in terms of operation, the particle trapping module located between the inner and outer structures ensures the ability to efficiently trap particles as small as micrometers. The particle trapping device of this invention significantly improves layout flexibility and achieves highly efficient particle trapping, thereby eliminating the risk of explosion and enabling long-term stable operation under high-temperature conditions. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0025] Figure 1 This is a front sectional view of one embodiment of the particle collection device of this utility model;

[0026] Figure 2 This is a side sectional view of one embodiment of the particle collection device of this utility model;

[0027] Figure 3 This is a top sectional view of one embodiment of the particle collection device of this utility model;

[0028] Figure 4 This is a top view schematic diagram of one embodiment of the inner layer structure described in this utility model;

[0029] Figure 5 This is a top view schematic diagram of one embodiment of the outer layer structure described in this utility model.

[0030] The reference numerals in the above figures are as follows:

[0031] 10. Particle capture area;

[0032] 100. Inner layer structure; 101. First water-cooling pipe; 102. First filling structure; 103. Second water-cooling pipe; 110. Lifting structure; 120. Conical section;

[0033] 200. Outer structure; 201. Third water-cooling pipe; 202. Second filling structure; 203. Outer wall; 204. Insulation layer; 210. Supporting structure;

[0034] 300. Particle collection module; 301. Inclined plate;

[0035] 400. Ash hopper; 401. Ash outlet;

[0036] 500. Compensator. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Please refer to the following: Figures 1 to 5 As shown, an embodiment of this utility model provides a particulate collection device, which includes an inner layer structure 100, an outer layer structure 200, and a particulate collection module 300. The upper part of the inner layer structure 100 is provided with an air inlet for flue gas to enter. The maximum radial dimension of the inner layer structure 100 is greater than the minimum radial dimension of the inner layer structure 100. The inner layer structure 100 is provided with a hoisting structure 110 for connecting to the upper layer structure. The outer layer structure 200 is sleeved on the outside of the inner layer structure 100. The lower part of the outer layer structure 200 is provided with an air outlet. The outer layer structure 200 and the inner layer structure 100 are separated by a preset distance in the radial direction. A particulate collection area 10 is formed between the outer layer structure 200 and the inner layer structure 100. A support structure 210 for connecting to the lower layer structure is provided on the outer layer structure 200. The particulate collection module 300 is disposed in the particulate collection area 10.

[0039] Overall, the particle collection device effectively improves spatial adaptability and layout flexibility by adopting a non-cylindrical cross-section design and a split load-bearing structure, reduces the installation size requirements in a single direction, and distributes the weight of the equipment to stress points at different heights, thus reducing the requirements for the plant structure.

[0040] Furthermore, by designing and manufacturing the particle collection device in separate units, the manufacturing, transportation, and installation processes are simplified, component size and weight are reduced, and installation efficiency is improved. In addition, in terms of operation, the particle collection module 300, located between the inner structure 100 and the outer structure 200, ensures the ability to efficiently collect particles down to the micrometer level. The particle collection device described in this invention significantly improves layout flexibility and achieves highly efficient particle collection, thereby eliminating the risk of explosion and enabling long-term stable operation under high-temperature conditions.

[0041] In the embodiments of this utility model, such as Figure 1 and Figure 2 In the embodiment shown, the hoisting structure 110 includes multiple lifting rods connected to the inner structure 100, and the inner structure 100 is hoisted to the upper structure via the lifting rods.

[0042] The inner structure 100 can be hoisted onto the upper structure by multiple lifting rods, so that the weight of the inner structure 100 can be evenly transferred to the upper structure through multiple lifting rods, which further reduces the burden on the supporting structure 210 and improves the structural stability and safety of the particle collection device.

[0043] Meanwhile, by using multiple suspension rods to suspend the inner structure 100, the stress distribution is optimized, the strength requirements for the factory's civil engineering structure are reduced, equipment installation and maintenance are facilitated, and the overall operational reliability and economy are improved. The upper structure can be an upper steel beam or an upper floor slab, etc., without specific limitations.

[0044] In the embodiments of this utility model, such as Figure 1 and Figure 2 In the embodiment shown, the support structure 210 includes a plurality of support seats that are connected to the sidewall of the outer structure 200, and the outer structure 200 is fixed to the lower structure through the support seats.

[0045] Multiple support bases can fix the outer structure 200 to the lower structure, allowing the weight of the outer structure 200 to be evenly distributed on the lower structure through the support bases. This enhances the overall stability and load-bearing capacity of the equipment, while reducing local stress concentration and improving structural safety. The lower structure can be a lower steel beam or a lower floor slab, etc., and no specific limitations are specified here.

[0046] In addition, the support base facilitates the adjustment and calibration of the installation position of the outer structure 200, improves installation accuracy and construction efficiency, further reduces reliance on the civil engineering structure of the factory building, and enhances the adaptability and maintenance convenience of the equipment.

[0047] The particle collection device is divided into two parts: an inner structure 100 and an outer structure 200. Each part is manufactured, transported, and installed separately. The inner structure 100 can be suspended from the upper steel beam by a hoisting rod, while the outer structure 200 can be installed on the lower steel beam by a support base. This allows the overall load of the particle collection device to be distributed across different steel beams, reducing the stress on each layer of steel beams. Furthermore, the separate installation of the two parts facilitates transportation, hoisting, and other operations during the process.

[0048] In an embodiment of this utility model, the inner layer structure 100 includes multiple first water-cooling pipes 101 spaced apart in a ring, and a first filling structure 102 disposed between adjacent first water-cooling pipes 101. The first water-cooling pipes 101 and the first filling structure 102 cooperate to form an inner cylinder, and the inner cylinder is provided with multiple layers of openings for flue gas to pass through.

[0049] An inner cylinder can be formed by multiple first water-cooling pipes 101 and a first filling structure 102. The inner cylinder is provided with multiple layers of openings for flue gas to pass through, and the top of the inner cylinder is open to form an air inlet. Thus, the flue gas can enter the inner cylinder through the air inlet and enter the particle collection module 300 evenly through the multiple layers of openings.

[0050] Specifically, some of the first water-cooling pipes 101 are spaced apart to form multiple layers of openings, thereby ensuring smooth flow of flue gas. Designers can adjust the specific number and arrangement of the multiple layers of openings according to usage needs; no specific limitations are imposed here. Preferably, the multiple layers of openings include n layers, where n ≥ 2.

[0051] Outside the flue gas circulation area, the first water-cooling pipes 101 are densely arranged, and the gaps between adjacent first water-cooling pipes 101 are filled by welding through a first filling structure 102. The first filling structure 102 can be round steel, and no specific limitation is made here.

[0052] Through the synergistic effect of multiple first water-cooling pipes 101, not only is effective cooling and uniform distribution of high-temperature flue gas achieved, but the structural strength and thermal stability of the inner cylinder are also enhanced. Furthermore, the multi-layer perforation design further optimizes the flue gas flow path, improves particle settling efficiency, and prevents local blockages, thereby improving the overall operational reliability and maintenance convenience of the equipment.

[0053] In the embodiments of this utility model, such as Figure 1 , Figure 3 and Figure 4 In the embodiment shown, the particle collection device also includes multiple second water-cooling pipes 103 spaced around the periphery of the first water-cooling pipe 101. The particle collection module 300 includes multiple inclined plates 301, which are disposed on the second water-cooling pipes 103. The inclined plates 301 are inclined downward along the direction from the inner layer structure 100 to the outer layer structure 200. The multiple inclined plates 301 are arranged at intervals along the height direction.

[0054] Specifically, adjacent second water-cooling pipes 103 can be spaced five times the pipe diameter apart, with each inclined plate 301 mounted on one second water-cooling pipe 103. In the radial direction of the particle collection device, multiple inclined plates 301 are arranged around multiple second water-cooling pipes 103 to form a ring structure. In the vertical direction, multiple inclined plates 301 are arranged at intervals, so that the ring structure is stacked.

[0055] By tilting multiple inclined plates 301 onto the second water-cooling pipe 103, a particle settling channel can be formed between the upper and lower inclined plates 301. This makes it easier for particles to settle under gravity during flue gas flow, significantly improving particle collection efficiency. Furthermore, the second water-cooling pipe 103 enhances the heat dissipation capacity of the inclined plates 301, reduces the risk of local overheating, and improves the operational stability and service life of the inclined plates 301 under high-temperature conditions.

[0056] Designers can adjust the tilt angle of the inclined plate 301 according to the needs of use, and there are no specific restrictions. For example, the angle between the inclined plate 301 and the second water-cooling pipe 103 can range from 0° to 90°.

[0057] In the embodiments of this utility model, such as Figure 1 and Figure 2 In the illustrated embodiment, the bottom of the inner layer structure 100 is provided with an inwardly tapered section 120, and the bottom of the tapered section 120 is provided with a drop outlet. The tapered section 120 effectively guides the particles in the inner layer structure 100 to concentrate and collect downward to the drop outlet, improving the settling efficiency and smooth discharge of particles, and avoiding particle accumulation at the bottom causing blockage.

[0058] In the embodiments of this utility model, such as Figure 1 , Figure 3 and Figure 5 In the embodiment shown, the outer structure 200 includes a plurality of third water-cooling pipes 201 spaced apart in a ring, and a second filling structure 202 disposed between adjacent third water-cooling pipes 201. The third water-cooling pipes 201 and the second filling structure 202 cooperate to form an outer cylinder.

[0059] Specifically, the third water-cooling pipes 201 are densely arranged, and the gaps between adjacent third water-cooling pipes 201 are filled by welding through the second filling structure 202. The second filling structure 202 can be round steel, and no specific restrictions are made here.

[0060] The upper end of the outer cylinder is closed, while the lower end is open, allowing micron-sized particles separated from the flue gas to be discharged through the lower end of the outer cylinder.

[0061] The synergistic effect of multiple third water-cooling pipes 201 enhances the heat dissipation capacity of the outer structure 200, reduces the risk of local overheating, and improves the operational stability and service life of the outer structure 200 under high-temperature conditions.

[0062] Furthermore, such as Figure 5In the embodiment shown, the outer side of the outer cylinder is provided with an outer wall 203, and an insulation layer 204 is provided between the outer wall 203 and the third water-cooling pipe 201. By setting the outer wall 203, the flue gas can be isolated from the external environment, and the insulation layer 204 effectively reduces heat loss, preventing the high-temperature flue gas from cooling down significantly when passing through the particulate capture device, thus affecting the subsequent waste heat recovery effect.

[0063] The inner layer structure 100 has a maximum radial dimension greater than its minimum radial dimension, resulting in a non-circular shape. The outer layer structure 200, following the shape of the inner layer structure 100, is also non-circular. The inner and outer layers, working together, form a non-circular particle trapping device, significantly improving its shape flexibility and allowing it to meet the layout requirements of different sites.

[0064] Designers can adjust the specific shapes of the inner structure 100 and the outer structure 200 according to usage needs, without specific restrictions. For example, the inner structure 100 and the outer structure 200 can be set as racetrack shape, ellipse, quadrilateral, triangle, polygon, star, curved shape or irregular shape, etc.

[0065] In one feasible embodiment, the inner structure 100 includes two first rectangular sidewalls spaced apart from each other, and two first arcuate sidewalls disposed at opposite ends of the two first rectangular sidewalls.

[0066] The inner structure 100 is formed by the cooperation of two first rectangular sidewalls and two first arc-shaped sidewalls, and the outer structure 200 can be set to follow the shape of the inner structure and be spaced at a preset distance, so that the outer structure 200 also forms a runway shape.

[0067] Preferably, the cross-section of the arc-shaped sidewall is semi-circular. The cross-sectional shape of the inner structure 100 consists of a central rectangle and semi-circular ends. For example... Figure 5 The embodiment shown uses an inner layer structure 100 and an outer layer structure 200 to form a particle collection device with a non-circular cross-section. The inner layer structure 100 serves as a flow channel for flue gas, and its flow area is: S 非 =πr 2 +2ar, where r is the radius of the semicircle and a is the length of the rectangular sidewall.

[0068] Taking a cylindrical inner cylinder with the same radius as a comparison, its flow area is S. 圆 =πr 2 In the formula, r is the radius of the cylinder. Therefore, it can be seen that the flue gas flow area of ​​a non-cylindrical particulate trap is significantly larger than that of a cylindrical particulate trap of the same diameter.

[0069] Furthermore, when a non-cylindrical particulate trap has the same flue gas communication area as a cylindrical particulate trap, the radius of the non-cylindrical particulate trap is smaller, thereby reducing the installation requirements of the non-cylindrical particulate trap in a single direction and improving the installation flexibility of the non-cylindrical particulate trap.

[0070] In the embodiments of this utility model, such as Figure 1 and Figure 2 In the embodiment shown, the particle collection device also includes an ash hopper 400 disposed below the particle collection area 10, and an ash outlet 401 is provided at the bottom of the ash hopper 400.

[0071] By setting up the ash hopper 400, particulate matter falling from the particle collection area 10 can be effectively collected, ensuring that the particulate matter can be discharged smoothly and centrally through the ash outlet 401, avoiding particle accumulation that affects equipment operating efficiency. Furthermore, the ash hopper 400 optimizes the flow path of the particulate matter, reduces the risk of blockage, and improves the ease of equipment maintenance and operational reliability.

[0072] In the embodiments of this utility model, such as Figure 1 and Figure 2 In the embodiment shown, the particle trapping device further includes a compensator 500 disposed between the inner layer structure 100 and the outer layer structure 200. The compensator 500 is used to absorb the displacement difference between the inner layer structure 100 and the outer layer structure 200 caused by heating.

[0073] Specifically, the compensator 500 is positioned between the top of the outer structure 200 and the top of the inner structure 100. The compensator 500 absorbs the displacement difference between the inner structure 100 and the outer structure 200 caused by heat, effectively alleviating the stress caused by the different thermal expansion of the inner structure 100 and the outer structure 200 under high-temperature conditions, preventing structural deformation or damage, and improving structural stability and service life.

[0074] During the blowing process, the mixture of flue gas and soot particles enters through the air inlet of the inner structure 100 of the particle collection device. Most of the flue gas passes through the multi-layer openings of the inner structure 100 and enters the outer structure 200. The micrometer-sized particles in the flue gas are separated and captured by the inclined plate 301. The separated flue gas continues vertically downward from the outer structure 200 and is finally discharged from the air outlet of the outer structure 200. The settled soot particles are discharged from the particle collection device through the semi-open ash hopper 400 below the inner structure 100.

[0075] During the refining interval, the soot particles collected on the inclined plate 301 and ash hopper 400 of the particle collection device are dislodged by ash removal methods such as rapping and discharged from the particle collection device through the ash outlet 401 below the outer structure 200.

[0076] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0077] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A particulate trapping device, characterized by, include: The inner layer structure has an air inlet at its upper part for allowing flue gas to enter, the maximum radial dimension of the inner layer structure is greater than the minimum radial dimension of the inner layer structure, and the inner layer structure has a hoisting structure for connecting to the upper layer structure. An outer layer structure is sleeved on the outside of the inner layer structure. The lower part of the outer layer structure is provided with an air outlet. The outer layer structure and the inner layer structure are separated by a predetermined distance in the radial direction. A particle trapping area is formed between the outer layer structure and the inner layer structure. The outer layer structure is provided with a support structure for connecting the lower layer structure. A particle collection module is disposed in the particle collection area.

2. The particulate trapping device according to claim 1, wherein The hoisting structure includes multiple lifting rods connected to the inner structure, and the inner structure is hoisted to the upper structure via the lifting rods.

3. The particulate trapping device according to claim 1, wherein The support structure includes a plurality of support seats that are connected to the sidewalls of the outer structure, and the outer structure is fixed to the lower structure through the support seats.

4. The particulate trapping device according to claim 1, wherein The inner structure includes multiple first water-cooling pipes spaced apart in a ring, and a first filling structure disposed between adjacent first water-cooling pipes. The first water-cooling pipes and the first filling structure cooperate to form an inner cylinder, and the inner cylinder is provided with multiple layers of openings for flue gas to pass through.

5. The particulate trapping device according to claim 4, wherein The particle collection device further includes multiple second water-cooled pipes spaced around the periphery of the first water-cooled pipe. The particle collection module includes multiple inclined plates, which are disposed on the second water-cooled pipes. The inclined plates are inclined downward along the direction from the inner layer structure to the outer layer structure. The multiple inclined plates are arranged at intervals along the height direction.

6. The particulate trapping device according to claim 1, wherein The bottom of the inner structure is provided with an inwardly tapered section, and the bottom of the tapered section is provided with a drop opening.

7. The particulate trapping device according to claim 1, wherein The outer structure includes multiple third water-cooling pipes spaced apart in a ring, and a second filling structure disposed between adjacent third water-cooling pipes. The third water-cooling pipes and the second filling structure cooperate to form an outer cylinder.

8. The particulate trapping device according to claim 7, wherein The outer cylinder has an outer wall on its outer side, and an insulation layer is provided between the outer wall and the third water-cooling pipe.

9. The particulate trapping device according to claim 1, wherein The inner structure includes two first rectangular sidewalls spaced apart from each other, and two first arc-shaped sidewalls positioned opposite each other at both ends of the two first rectangular sidewalls.

10. The particulate trapping device according to claim 9, wherein The cross-section of the arc-shaped sidewall is semi-circular.

11. The particulate collection device of claim 1 wherein, The particle collection device also includes an ash hopper located below the particle collection area, with an ash outlet at the bottom of the ash hopper.

12. The particulate collection device of claim 1 wherein, The particle collection device further includes a compensator disposed between the inner layer structure and the outer layer structure, the compensator being used to absorb the displacement difference between the inner layer structure and the outer layer structure caused by heating.

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