CN112206588B - Flue gas particle separating device - Google Patents

Abstract

The present invention provides a smoke particle separation device, which can be arranged in a flue, and the smoke particle separation device includes a shell and a sedimentation assembly, the shell is a hollow structure, and the side wall of the shell has a relative inlet and outlet; the sedimentation assembly is arranged in the shell, and the sedimentation assembly includes at least two layers of first inclined plates arranged from top to bottom, the first inclined plate is inclined toward the top wall of the shell along the flow direction of the smoke, and the angle between the first inclined plate and the top wall of the shell is 5° to 70°, the upper end of the first inclined plate is connected to the outlet, and the lower end of the first inclined plate is connected to the inlet. The smoke particle separation device of the present invention can use gravity to settle micrometer-level particle smoke dust in the smoke to achieve the purpose of separating particles in the smoke.

Description

Flue gas particle separation device

Technical Field

The invention relates to the technical field of steelmaking, and in particular to a flue gas particle separation device.

Background technique

With the gradual strengthening of energy-saving and environmental protection awareness, the study of full waste heat recovery of converter flue gas and the exploration of true dry dust removal technology have become the focus of many steel mills. The important link that affects the development of converter full dry waste heat recovery technology is how to solve the explosion-proof problem of converter flue gas during the process. The three elements that cause the explosion of converter gas are 12.5% to 75% CO concentration, temperature below 610℃ and fire with sufficient energy. In order to prevent the occurrence of explosion, these three necessary conditions must be considered. If one of the necessary conditions is restricted, the occurrence of explosion will be restricted.

Converter steelmaking is an intermittent production method. During the normal smelting production stage of the converter, the flue gas temperature is high, the flue gas volume is large, the dust content is high, the flue gas velocity in the pipeline is high, and the CO content is high; in order to prevent the explosion caused by the large particles of high-temperature fire igniting the flue gas, it is necessary to complete the separation of high-temperature large particles, especially large particles of micrometer size (particles with an average particle size of not less than 50μm) before the waste heat recovery, to ensure that there is no explosion during the full waste heat recovery stage. During the converter preparation stage, the flue gas temperature is reduced, the flue gas volume is small, the dust content is also reduced, the pipeline flue gas velocity is small, and the CO content is between the upper and lower explosion limits. If there are large particles of fire with sufficient energy at the same time, it is likely to cause an explosion, so the capture of large particles at this stage is equally important.

There are many separation and capture technologies for large particles in flue gas, mainly wet or semi-dry separation, cyclone separation and bag separation, which use gravity, centrifugal force, inertial force and resistance to separate them from flue gas. Since wet or semi-dry separation technology requires additional water consumption, the physical and chemical properties of dust particles (mainly Fe ₂ O ₃ ) change under the condition of high temperature and water, which affects the secondary utilization of dust; cyclone separation technology flue gas is prone to vortex; bag separation technology has a large pressure loss and is not suitable for high-temperature flue gas. Therefore, it is necessary to develop a dry method for capturing large particles in flue gas that is efficient, simple, and suitable for intermittent conversion of high, medium and low flow rates.

The Chinese invention patent with the authorization announcement number CN1148264C discloses a gas-solid cyclone separation method and device capable of reducing wear, and the steps thereof are as follows: 1. Flue gas with a certain flow rate and carrying smoke dust enters the cyclone separator cylinder in a tangential direction through the horizontal flue gas inlet section of the gas-solid separator. Under the action of centrifugal force and inertial force, the particles carried by the flue gas are thrown toward the wall at high speed; 2. Large particles in the flue gas gradually gather toward the opposite side of the inlet in the cylinder to form a dense phase area of large particles. The large particles in the dense phase area enter the spiral downward coarse particle spiral feed pipe connected to the outer wall of the cylinder along the opening on the cylinder wall within the dense phase area, and are directly discharged through the return leg of the cyclone separator; 3. The purified flue gas is discharged through the central cylinder of the cyclone separator.

The cyclone separation technology, due to the uncertainty of the rotating airflow path and the reciprocating airflow at the gas-solid separation interface and other factors, results in the airflow in the cyclone dust collector being unable to achieve the form of plunger flow, and there will be phenomena such as eddy currents, and there may be a small amount of large particles being mixed and carried back, posing a risk of explosion to the converter flue gas.

A Chinese invention patent with application publication number CN10949921A discloses a moving bed particle layer filter, which includes an inner cylinder, an intermediate cylinder and an outer cylinder. A first annular cavity is formed between the inner cylinder and the intermediate cylinder. A filter particle layer is arranged in the first annular cavity. A smoke inlet is arranged at the lower part of the filter, and a smoke outlet is arranged at the upper part. The dust-containing smoke first enters the inner cavity of the inner cylinder from the smoke inlet, and then is filtered by the filter particle layer, and then enters the second annular cavity between the intermediate cylinder and the outer cylinder. The purified smoke after filtration is then discharged from the smoke outlet.

Although the moving bed particle layer filter has a relatively high dust removal efficiency, the gas flows through a large gas-solid contact area in the moving particle layer, the flow rate requirement is low, the filter material needs to be regularly updated, and the overall energy consumption and operating cost are high.

The Chinese utility model patent with authorization announcement number CN209338597U discloses a converter flue gas dust removal and waste heat recovery system, the steps of which are as follows: after the converter flue gas passes through the vaporization cooling flue, it enters the quenching tower, where it is cooled by spraying water to extinguish the fire in the flue gas, and at the same time, large particles of dust in the flue gas are removed by gravity sedimentation.

Although the above-mentioned gravity sedimentation separation technology effectively avoids the risk of explosion of converter flue gas, it is essentially a combination of wet separation technology and gravity sedimentation. On the one hand, it wastes the high-temperature energy of the flue gas, and on the other hand, it consumes a lot of water and requires secondary treatment of the wastewater.

The Chinese utility model patent with authorization announcement number CN201744260U discloses a full evaporative spray cooling dry dust removal device, the steps of which are: the flue gas enters from the water cooling channel, mixes with the droplets sprayed from the double-flow spray gun, and enters the evaporative cooling tower through the compensator. In the evaporative cooling tower, the droplets absorb heat and evaporate and vaporize, the flue gas temperature drops, and the coarse particles and some fine particles of dust collide with the droplets and condense and fall into the banana elbow, and are discharged from the ash outlet of the ash conveyor through the ash discharge valve. The flue gas after cooling and coarse dust removal enters the electrostatic precipitator for fine dust removal from the banana elbow outlet connection pipe.

Although the above-mentioned evaporative spray cooling dry dust removal technology can achieve the purpose of rapid cooling and rough dust removal, it still requires a large amount of circulating water and is not a true dry dust removal. In addition, this technology wastes the high-temperature energy of the flue gas. The evaporative cooler also has the problem of easy scaling of the inner wall during use.

Summary of the invention

The object of the present invention is to provide a flue gas particle separation device which utilizes gravity to settle micrometer-level particle smoke dust in flue gas.

In order to achieve the above object, the present invention provides a smoke particle separation device, which can be arranged in a flue, and the smoke particle separation device comprises:

A shell body having a hollow structure and a side wall of the shell body having an inlet and an outlet opposite to each other;

A sedimentation assembly is arranged in the shell, and the sedimentation assembly includes at least two layers of first inclined plates arranged at intervals from top to bottom, the first inclined plates are inclined toward the top wall of the shell along the flow direction of the smoke, and the angle between the first inclined plate and the top wall of the shell is 5° to 70°, the upper end of the first inclined plate is connected to the outlet, and the lower end of the first inclined plate is connected to the inlet.

The flue gas particle separation device as described above, wherein the sedimentation assembly further includes a layer of second inclined plates spaced apart and arranged above each of the first inclined plates, the length of the second inclined plates being smaller than the length of the first inclined plates, and the upper end of each of the second inclined plates being connected to the outlet.

The flue gas particle separation device as described above, wherein the sedimentation assembly also includes third inclined plates spaced apart at the upper and lower sides of each of the second inclined plates, the length of the third inclined plates being smaller than the length of the second inclined plates, and the upper end of each of the third inclined plates being connected to the outlet.

In the smoke particle separation device as described above, a first support rod is connected between two adjacent first inclined plates, a second support rod is connected between two adjacent second inclined plates, and a third support rod is connected between two adjacent third inclined plates.

The smoke particle separation device as described above, wherein the outer circumferential surfaces of the first support rod, the second support rod and the third support rod are provided with an anti-wear layer.

In the smoke particle separation device as described above, the adjacent first inclined plate and the second inclined plate are arranged parallel to each other, and the adjacent second inclined plate and the third inclined plate are arranged parallel to each other.

The smoke particle separation device as described above, wherein the outer surfaces of the first inclined plate, the second inclined plate and the third inclined plate are all provided with a wear-resistant layer.

The smoke particle separation device as described above, wherein the inner surface of the shell is provided with an anti-wear coating.

The flue gas particle separation device as described above, wherein the first inclined plates are arranged at equal intervals.

In the smoke particle separation device as described above, the distance between two adjacent first inclined plates is 10 mm to 350 mm, and the length of the first inclined plate is 600 mm to 2500 mm.

The smoke particle separation device as described above, wherein:

Compared with the prior art, the advantages of the present invention are as follows:

The smoke particle separation device of the present invention utilizes full dry gravity sedimentation, and the physical and chemical properties of the dust-containing particles are not disturbed by the outside world and can remain unchanged, which is conducive to the secondary utilization of the dust.

The smoke particle separation device of the present invention, by providing multiple layers of first inclined plates, second inclined plates and third inclined plates, enables the high-temperature smoke carrying particles to be separated into multiple thin airflows, forming a multi-layer flow of smoke. Since the specific gravity of solid particles is much higher than that of smoke, the solid particles fall under the action of their own gravity. Moreover, since the first inclined plates, the second inclined plates and the third inclined plates are all inclined toward the top wall of the shell along the flow direction of the smoke, the falling distance of the solid particles is shortened, so that they can touch the first inclined plates, the second inclined plates and the third inclined plates more quickly, and then separate the micrometer-level particles, thereby achieving the purpose of separation.

The smoke particle separation device of the present invention supports two adjacent first inclined plates by a first support rod, supports two adjacent second inclined plates by a second support rod, and supports two adjacent third inclined plates by a third support rod, thereby ensuring the spacing between the two adjacent first inclined plates, the two adjacent second inclined plates, and the two adjacent third inclined plates.

The smoke particle separation device of the present invention improves the wear resistance of the first inclined plate, the second inclined plate and the third inclined plate by arranging a wear-resistant layer on the outer surfaces of the first inclined plate, the second inclined plate and the third inclined plate; enhances the wear resistance of the shell by arranging an anti-wear coating on the inner surface of the shell; and ensures the service life of the first support rod, the second support rod and the third support rod by arranging an anti-wear layer on the outer surfaces of the first support rod, the second support rod and the third support rod, thereby extending the service life of the smoke particle separation device.

BRIEF DESCRIPTION OF THE DRAWINGS

The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

FIG1 is a schematic structural diagram of a smoke particle separation device according to the present invention;

FIG2 is a side view of the structure of the smoke particle separation device shown in FIG1 ;

FIG. 3 is a schematic diagram of the cross-sectional structure of the first support rod.

Description of Figure Numbers:

100, housing; 101, top wall; 102, bottom wall; 103, side wall; 1031, inlet; 1032, outlet;

200, sedimentation assembly; 210, first inclined plate; 211, first support rod; 220, second inclined plate; 221, second support rod; 230, third inclined plate; 231, third support rod; 240, anti-wear layer.

Detailed ways

In order to have a clearer understanding of the technical scheme, purpose and effect of the present invention, the specific implementation mode of the present invention is now described in conjunction with the accompanying drawings. Among them, the use of adjective or adverbial modifiers "upper" and "lower", "top" and "bottom", "inside" and "outside" is only to facilitate relative reference between multiple groups of terms, and does not describe any specific directional restrictions on the modified terms. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more, and "high temperature" means 650℃～800℃. In Figure 2, the solid short arrow is the direction of flue gas flow.

As shown in FIG. 1 and FIG. 2 , the present invention provides a smoke particle separation device, which can be arranged in a flue, and the smoke particle separation device includes a housing 100 and a settling assembly 200, wherein:

The housing 100 is a hollow structure, and has a top wall 101, a bottom wall 102 and a side wall 103. The side wall 103 of the housing 100 is provided with an inlet 1031 and an outlet 1032 opposite to each other, that is, the inlet 1031 and the outlet 1032 are arranged at opposite positions. Preferably, the upper and lower ends of the inlet 1031 and the outlet 1032 extend to the top wall 101 and the bottom wall 102 respectively.

The sedimentation assembly 200 is arranged in the shell 100. The sedimentation assembly 200 includes at least two layers of first inclined plates 210 arranged at intervals from top to bottom. Preferably, each of the first inclined plates 210 is arranged in parallel and at equal intervals. A first smoke flow channel is formed between two adjacent first inclined plates 210. The first inclined plates 210 are inclined toward the top wall 101 of the shell 100 along the flow direction of the smoke, and the angle α between the first inclined plates 210 and the top wall 101 of the shell 100 is 5° to 70°, so that when the particles flow with the smoke in the first smoke flow channel, the falling distance is The first inclined plate 210 is shortened so that it can reach the first inclined plate 210 more quickly and separate the particles. The upper end of the first inclined plate 210 is connected to the outlet 1032, and the lower end of the first inclined plate 210 is connected to the inlet 1031, that is, the two side plates of the first inclined plate 210 will not contact the inner wall surface of the shell 100. The first smoke flow channels formed by the multiple layers of first inclined plates separate the high-temperature smoke flowing through into countless flat airflows and form countless layers of fluid, so that the smoke forms a continuous plunger flow during the flow, and there is no smoke retention area, thereby eliminating the explosion risk caused by the smoke retention area.

When in use, as shown in Figures 1 and 2, the high-temperature flue gas generated during the converter smelting process passes through the converter flue located above the converter, and the flue gas is cooled to about 800°C mainly by radiation heat exchange. The particle concentration carried in the flue gas can be as high as 200g/ ^Nm3 . The flue gas carries particles of the millimeter level and below into the shell 100 from the inlet 1031. Under the action of the multiple layers of first inclined plates 210, the particles of the millimeter level and below settle on each first inclined plate 210, that is, the separation of the millimeter-level particle dust is completed. In the preparation stage of converter steelmaking, the captured particles are collected and discharged.

The flue gas particle separation device of the present invention, by setting a multi-layer first inclined plate 210, allows the high-temperature flue gas carrying particles to be separated into a plurality of flat and thin airflows by the multi-layer first inclined plates 210, forming a multi-layer flow flue gas. Since the specific gravity of solid particles is much higher than that of flue gas, the solid particles fall under the action of their own gravity. Since the first inclined plate 210 is inclined toward the top wall 101 of the shell 100 along the flow direction of the flue gas, the falling distance of the solid particles is shortened, so that they can reach the first inclined plate 210 faster, and then separate the micrometer-level particles to achieve the purpose of separation. In addition, the angle between the first inclined plate 210 and the top wall 101 of the shell 100 is 5° to 70°, which is convenient for cleaning and sliding of accumulated ash. When the inclination angle of the first inclined plate 210 is greater than the repose angle of the particles, the ash deposited on the inclined plate slides off by itself.

Furthermore, the distance h between two adjacent first inclined plates 210 is 10 mm to 350 mm. Such a distance can not only allow the smoke to pass through the first smoke flow channel smoothly, but also shorten the falling distance of the particles so that they can reach the first inclined plates 210 more quickly.

Furthermore, the length L of the first inclined plate 210 is 600 mm to 2500 mm. Such a length can allow the particles carried by the flue gas to fully contact the first inclined plate 210, thereby improving the separation effect.

Furthermore, the width of the first inclined plate 210 is 300 mm to 5000 mm. Such a width can ensure the contact area between the flue gas and the first inclined plate 210, thereby ensuring the separation effect.

Furthermore, the inner surface of the shell 100 is provided with an anti-wear coating to enhance the wear resistance of the shell 100, thereby increasing the service life of the flue gas particle separation device, wherein the anti-wear coating is formed by a wear-resistant coating applied on the inner surface of the shell 100. The wear-resistant coating is a prior art and will not be described in detail here.

In one embodiment of the present invention, the sedimentation assembly 200 further includes a layer of second inclined plates 220 disposed above each first inclined plate 210 at intervals. Preferably, adjacent first inclined plates 210 and second inclined plates 220 are disposed parallel to each other, that is, a second inclined plate 220 is disposed above each layer of first inclined plates 210 and is parallel to and spaced from each other. The distance between adjacent first inclined plates 210 and second inclined plates 220 is 10 mm to 350 mm, and the length of the second inclined plate 220 is less than that of the first inclined plate 210. The length of the second inclined plate 210 is 210, and the upper end of each second inclined plate 220 is connected to the outlet 1032. The arrangement of each second inclined plate 220 allows the high-temperature flue gas carrying particles to be separated into more flat and thin airflows by the multiple layers of first inclined plates 210 and the multiple layers of second inclined plates 220, forming a multi-layer flow flue gas, ensuring that the flue gas forms a continuous plunger flow during the flow, eliminating the explosion risk caused by the flue gas retention area, and the upper end of the second inclined plate 220 is connected to the outlet 1032, so that the multiple layers of second inclined plates 220 can form secondary sedimentation.

Furthermore, the sedimentation assembly 200 also includes a third inclined plate 230 arranged at intervals on the upper and lower sides of each second inclined plate 220. Preferably, the adjacent second inclined plates 220 and third inclined plates 230 are arranged parallel to each other, that is, the upper and lower sides of the second inclined plate 220 are each provided with a third inclined plate 230 parallel to it and arranged at intervals. The length of the third inclined plate 230 is less than the length of the second inclined plate 220. The upper end of each third inclined plate 230 is connected to the outlet 1032. The arrangement of each third inclined plate 230 allows the high-temperature flue gas carrying particles to be separated into more flat airflows by multiple layers of first inclined plates 210, multiple layers of second inclined plates 220 and multiple layers of third inclined plates 230, forming a multi-layer flow flue gas, ensuring that the flue gas forms a continuous plunger flow during the flow process, eliminating the explosion risk caused by the flue gas stagnation area, and the upper end of the third inclined plate 230 is connected to the outlet 1032, so that the multiple layers of third inclined plates 230 can form a three-level sedimentation, so that the particles in the flue gas can be fully separated.

Furthermore, a first support rod 211 is connected between two adjacent first inclined plates 210, a second support rod 221 is connected between two adjacent second inclined plates 220, and a third support rod 231 is connected between two adjacent third inclined plates 230. The two adjacent first inclined plates 210 are supported by the first support rod 211, the two adjacent second inclined plates 220 are supported by the second support rod 221, and the two adjacent third inclined plates 230 are supported by the third support rod 231, so as to ensure the spacing between the two adjacent first inclined plates 210, the two adjacent second inclined plates 220 and the two adjacent third inclined plates 230.

Furthermore, the first support rod 211 , the second support rod 221 and the third support rod 231 have the same structure.

Further, as shown in Figure 3, the outer surfaces of the first support rod 211, the second support rod 221 and the third support rod 231 are all provided with an anti-wear layer 240 to ensure the service life of the first support rod 211, the second support rod 221 and the third support rod 231. Specifically, the anti-wear layer 240 is an angle steel or an anti-wear coating welded to the outer surfaces of the first support rod 211, the second support rod 221 and the third support rod 231.

Furthermore, the outer surfaces of the first inclined plate 210 , the second inclined plate 220 and the third inclined plate 230 are all provided with a wear-resistant layer to increase the service life of the first inclined plate 210 , the second inclined plate 220 and the third inclined plate 230 , thereby increasing the service life of the flue gas particle separation device.

The following is a detailed description of the use of the smoke particle separation device of the present invention in conjunction with the accompanying drawings:

As shown in FIG. 1 and FIG. 2 , the spacing between adjacent third inclined plates 230 and first inclined plates 210 and between adjacent third inclined plates 230 and second inclined plates 220 is 60 mm, the angle between the first inclined plate 210 and the top wall 101 of the shell 100 is 11°, the length of the first inclined plate 210 is 1200 mm, the length of the second inclined plate 220 is 800 mm, the length of the third inclined plate 230 is 400 mm, the widths of the first inclined plate 210, the second inclined plate 220 and the third inclined plate 230 are all 4500 mm, the temperature of the flue gas entering the shell 100 is 800° C. to 1000° C., the flue gas velocity range is 0.5 m/s to 7 m/s, and the dust particle concentration in the flue gas is 120 g/Nm ³ .

The converter flue gas enters the shell 100, completes the first level of sedimentation under the action of each first inclined plate 210, completes the second level of sedimentation under the action of each second inclined plate 220, and completes the third level of sedimentation under the action of each third inclined plate 230, that is, the third level of sedimentation is completed in the shell 100, thereby completing the separation of micrometer-level particle dust, and in the preparation stage of converter steelmaking, the captured particles are collected and discharged.

It has been verified by experiments that the flue gas particle separation device of the present invention can separate some particles with a particle size of 30μm to 50μm under the condition of a flue gas flow rate of 1.5m/s to 7m/s, and the separation rate is not less than 50%; the separation rate of particles with a particle size of 50μm and above is 100%, and the treatable flue gas temperature range is 100℃ to 1000℃.

In summary, the smoke particle separation device of the present invention, by providing multiple layers of the first inclined plate, the second inclined plate and the third inclined plate, enables the high-temperature smoke carrying particles to be separated into multiple thin airflows to form a multi-layer flow of smoke. Since the specific gravity of solid particles is much higher than that of smoke, the solid particles fall under the action of their own gravity. Moreover, since the first inclined plate, the second inclined plate and the third inclined plate are all inclined toward the top wall of the shell along the flow direction of the smoke, the falling distance of the solid particles is shortened, so that they can touch the first inclined plate, the second inclined plate and the third inclined plate more quickly, and then separate the micrometer-level particles to achieve the purpose of separation.

The smoke particle separation device of the present invention supports two adjacent first inclined plates by a first support rod, supports two adjacent second inclined plates by a second support rod, and supports two adjacent third inclined plates by a third support rod, thereby ensuring the spacing between the two adjacent first inclined plates, the two adjacent second inclined plates, and the two adjacent third inclined plates.

The smoke particle separation device of the present invention improves the wear resistance of the first inclined plate, the second inclined plate and the third inclined plate by arranging a wear-resistant layer on the outer surfaces of the first inclined plate, the second inclined plate and the third inclined plate; enhances the wear resistance of the shell by arranging an anti-wear coating on the inner surface of the shell; and ensures the service life of the first support rod, the second support rod and the third support rod by arranging an anti-wear layer on the outer surfaces of the first support rod, the second support rod and the third support rod, thereby extending the service life of the smoke particle separation device.

The above description is only an illustrative specific implementation mode of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention. It should also be noted that the various components of the present invention are not limited to the above-mentioned overall application. The various technical features described in the specification of the present invention can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the present invention naturally covers other combinations and specific applications related to the invention point of this case.

Claims (7)

1. A flue gas particle separation device capable of being disposed in a flue, the flue gas particle separation device comprising:

A housing having a hollow structure with opposite inlet and outlet ports on a side wall thereof;

The sedimentation assembly is arranged in the shell and comprises at least two layers of first inclined plates which are arranged from top to bottom in a spaced mode, the first inclined plates are obliquely arranged towards the top wall of the shell along the flow direction of the flue gas, an included angle between the first inclined plates and the top wall of the shell is 5-70 degrees, the upper ends of the first inclined plates are connected with the outlet, and the lower ends of the first inclined plates are connected with the inlet;

The sedimentation assembly further comprises a layer of second sloping plates arranged above each first sloping plate at intervals, the length of each second sloping plate is smaller than that of each first sloping plate, and the upper ends of the second sloping plates are connected with the outlet;

the sedimentation assembly further comprises third inclined plates arranged on the upper side and the lower side of each second inclined plate at intervals, the length of each third inclined plate is smaller than that of each second inclined plate, and the upper end of each third inclined plate is connected with the outlet;

The inner surface of the shell is provided with an anti-wear coating.

2. The flue gas particle separation device according to claim 1, wherein,

A first supporting rod is connected between every two adjacent first inclined plates, a second supporting rod is connected between every two adjacent second inclined plates, and a third supporting rod is connected between every two adjacent third inclined plates.

3. The flue gas particle separation device according to claim 2, wherein,

The outer peripheral surfaces of the first support rod, the second support rod and the third support rod are provided with anti-wear layers.

4. The flue gas particle separation device according to claim 1, wherein,

The first inclined plates and the second inclined plates which are adjacent to each other are arranged in parallel, and the second inclined plates and the third inclined plates which are adjacent to each other are arranged in parallel.

5. The flue gas particle separation device according to claim 1, wherein,

The outer surfaces of the first sloping plate, the second sloping plate and the third sloping plate are all provided with wear-resistant layers.

6. The flue gas particle separation device according to any one of claims 1 to 5, wherein,

The first inclined plates are parallel to each other and are arranged at equal intervals.

7. The flue gas particle separation device according to any one of claims 1 to 5, wherein,

The distance between two adjacent first sloping plates is 10 mm-350 mm, and the length of each first sloping plate is 600 mm-2500 mm.