A top air inlet two-stage flow guide plastic burning plate dust collector

Abstract

This invention discloses a top-inlet, two-stage flow-guiding sintered plate dust collector, belonging to the field of industrial dust control technology. The top-inlet, two-stage flow-guiding sintered plate dust collector includes a housing and a dust hopper, and further includes: multiple dust collection chambers located in the middle of the housing, each dust collection chamber containing a dust collection component, and each dust collection component including multiple rows of sintered plates; a cyclone separator with an exhaust port and a discharge port, used to separate the first portion of dust in the incoming dust-laden airflow and transport the first portion of dust to the dust hopper; a flow-guiding structure located below the multiple dust collection chambers and opposite the exhaust port of the cyclone separator, causing the spiral airflow carrying the second portion of dust discharged from the exhaust port of the cyclone separator to flow upwards under the action of the flow-guiding structure, and the reversed airflow enters the dust collection chamber from below. This top-inlet, two-stage flow-guiding sintered plate dust collector avoids airflow short-circuiting and localized scouring, improving the uniformity of airflow distribution.

Description

Technical Field

[0001] This invention relates to the field of industrial dust control technology, specifically to a top-inlet dual-stage guide plate dust collector. Background Technology

[0002] With the green development of industries such as steel, metallurgy, chemical, and tobacco, the demand for dust control in production processes is becoming increasingly urgent. Sintered plastic plate dust collectors, with their advantages of high filtration accuracy, good moisture resistance, long service life, and excellent dust removal effect, are gradually replacing traditional bag dust collectors and becoming the core equipment for efficient industrial dust purification. They can adapt to complex dust removal conditions with high humidity and high concentration, and can effectively intercept fine dust, meeting the core requirements of industrial production for efficient, stable, and long-term dust control.

[0003] Existing sintered plate dust collectors typically consist of a housing, a dust hopper, sintered plate assemblies, and inlet / outlet structures. During dust removal, the dust-laden airflow usually enters horizontally from the bottom or side of the housing, passing through the sintered plate assemblies from bottom to top. The dust is trapped on the surface of the sintered plates, while the clean gas is collected and discharged from the outlet. The trapped dust falls into the dust hopper under gravity, thus achieving the filtration and purification of the dust-laden airflow.

[0004] However, in the purification of high-concentration, multi-particle-size dust in industrial applications, the sintered plates of traditional sintered plate dust collectors are mostly arranged in a simple planar layout. This causes the airflow entering the sintered plate assembly to easily form a through-type straight channel, resulting in uneven airflow distribution. Some sintered plates become overloaded due to excessive air volume, while others have low utilization rates, significantly reducing the overall dust removal efficiency and affecting the dust removal efficiency and equipment lifespan. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems in the prior art and provide a top-inlet dual-stage flow guide sintered plate dust collector, which can prevent uneven airflow distribution in the sintered plate dust collector, thereby preventing the problem of local filtration overload of the sintered plate while the rest is not effectively utilized, and improving dust removal efficiency and equipment durability.

[0006] This invention provides a top-inlet, two-stage flow-guiding sintered plate dust collector, comprising a housing and a dust hopper. The dust hopper is located at the bottom of the housing, an air inlet is provided at the top of the housing, and an air outlet is provided on the side wall of the housing near the top. The invention also includes: Multiple dust collection chambers are located in the middle of the housing. The multiple dust collection chambers are isolated from each other and arranged in a matrix in the horizontal direction. Each dust collection chamber is equipped with a dust collection component. Each dust collection component includes multiple rows of sintered plastic plates. The multiple rows of sintered plastic plates are arranged in parallel and staggered. The multiple sintered plastic plates in each row are arranged in parallel, and the arrangement direction of the sintered plastic plates in two adjacent dust collection chambers is different. A cyclone separator is connected to the air inlet of the top air inlet. The cyclone separator is provided with an exhaust port and a discharge port. The discharge port of the cyclone separator is connected to the ash hopper. The cyclone separator is used to separate the first part of the dust in the incoming dust-laden airflow and transport the first part of the dust to the ash hopper. The flow guiding structure is located below multiple dust collection chambers and opposite to the exhaust port of the cyclone separator. The spiral airflow carrying the second part of dust discharged from the exhaust port of the cyclone separator flows upward under the action of the flow guiding structure. The reverse airflow enters the dust collection chamber from below. The mass of the first part of dust is greater than that of the second part of dust.

[0007] Preferably, the flow guiding structure includes a flow guiding channel, a flow guiding cone, and multiple flow splitters. The sidewall of the flow guiding channel is an inverted cone shape. The flow guiding cone is located directly below the exhaust port of the cyclone separator and is coaxially arranged with the flow guiding channel. The flow guiding cone is used to disperse the airflow discharged from the exhaust port. The flow guiding channel folds the dispersed airflow upward through its own inner wall. The multiple flow splitters are located between the sidewall of the flow guiding cone and the sidewall of the flow guiding channel. The multiple flow splitters are used to split the folded airflow so that the folded airflow can be evenly dispersed into multiple dust removal chambers.

[0008] Preferably, the multiple diversion plates are all vertically arranged and connected to the sidewall of the guide cone. The multiple diversion plates are arranged radially with the axis of the guide cone as the center. Each diversion plate is located between two adjacent dust removal chambers. The multiple diversion plates have different heights and are distributed in a stepped manner.

[0009] Preferably, the inner cavity of the box is provided with an airflow channel, the plurality of dust removal chambers are arranged around the airflow channel, the cyclone separator is arranged vertically in the airflow channel, and the outer edge of the guide cone is larger than the circumcircle diameter of the airflow channel cross-section.

[0010] Preferably, the cyclone separator includes a composite air duct and a spiral guide plate. The composite air duct includes a first conical cylinder and a second conical cylinder. The first conical cylinder, the second conical cylinder, and the spiral guide plate are all coaxially arranged. The first conical cylinder is located in the airflow channel. The top end of the first conical cylinder is connected to the air inlet, and the bottom end of the first conical cylinder is connected to the second conical cylinder. An annular stepped surface is provided between the first conical cylinder and the second conical cylinder. The discharge port is located on the side wall of the first conical cylinder outside the stepped surface. The spiral guide plate is located inside the first conical cylinder and is used to guide the airflow entering the first conical cylinder, causing the airflow to spiral towards the second conical cylinder. The exhaust port is located at the bottom end of the second conical cylinder, and the guide cone is located below the second conical cylinder.

[0011] Preferably, the chamber is equipped with a pulse jet cleaning system located above the dust removal chamber. The pulse jet cleaning system includes an air tank, a pulse control valve, and multiple jet pipes. The air tank is connected to the multiple jet pipes through the pulse control valve. Each jet pipe corresponds to a row of sintered plastic plates. Multiple jet holes are provided on the side wall of each jet pipe for jet cleaning the sintered plastic plates.

[0012] Preferably, in the multiple rows of sintered plates of the same dust removal component, the spacing between two adjacent sintered plates is equal.

[0013] Preferably, the top inner wall of the ash hopper is provided with an annular ash baffle plate, the outer edge of which is higher than the inner edge.

[0014] Preferably, the bottom end of the ash hopper is provided with an ash discharge valve.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the top-inlet dual-stage guide sintered plate dust collector of the present invention, the dust-laden airflow enters through the air inlet at the top of the housing and undergoes primary coarse separation via a cyclone separator. Under centrifugal force, coarse dust particles fall from the discharge port into the ash hopper for collection, achieving initial dust reduction. The spiral airflow carrying fine dust particles is discharged downwards from the exhaust port and enters the guide structure located below the dust collection chamber. The pre-separated airflow is forced upwards by the guide structure, uniformly entering the dust collection chamber from the bottom of each chamber, completely avoiding airflow short-circuiting and localized high-speed scouring. Multiple rows of sintered plates are arranged in parallel and staggered positions within each dust collection chamber, with different arrangement directions in adjacent chambers, causing the airflow to form a zigzag flow path through the filter material. Fine dust particles are intercepted by the sintered plates, completing secondary fine filtration. The filtered clean gas converges in the upper part of the chamber and is discharged from the outlet near the top on the side wall. The fine dust trapped by the sintered plate falls to the ash hopper under gravity, where it is collected and discharged together with the coarse dust, completing the entire dust removal cycle. Through the pre-separation of coarse dust by a cyclone separator, the downward reverse flow of airflow achieved by the flow guiding structure, and the hierarchical collaborative design of the matrix-type isolation dust removal chamber and the staggered sintered plates, the dust-laden airflow is purified in stages and the flow field is precisely controlled. This solves the industry pain points of traditional sintered plate dust collectors, such as uneven airflow distribution, local filtration overload of sintered plates, and secondary dust entrainment. While significantly improving the filtration efficiency of fine dust, it effectively avoids airflow short-circuiting, reduces local high-speed scouring, and improves the uniformity of airflow distribution and dust removal efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the AA surface of the present invention; Figure 3 This is a schematic diagram of the structure inside the dust removal chamber of the present invention.

[0017] Explanation of reference numerals in the attached figures: 101. Housing; 102. Ash hopper; 103. Air inlet; 104. Air outlet; 105. Cyclone separator; 106. Exhaust outlet; 107. Material outlet; 108. Flow guiding structure; 109. Dust removal chamber; 110. Sintered plate; 201. Diverter plate; 202. Flow guide groove; 203. Flow guide cone; 3. Airflow channel; 401. Spiral air guide plate; 402. Conical cylinder one; 403. Conical cylinder two; 404. Stepped surface; 5. Air inlet pipe; 6. Ash discharge valve; 7. Ash baffle plate. Detailed Implementation

[0018] The following is in conjunction with the appendix Figures 1-3 The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] like Figures 1-3 As shown, the present invention provides a top-inlet dual-stage flow-guiding sintered plate dust collector, including a housing 101 and a dust hopper 102. The dust hopper 102 is located at the bottom of the housing 101. The top of the housing 101 is provided with an air inlet 103. The side wall of the housing 101 is provided with an air outlet 104 near the top. It also includes a cyclone separator 105, a flow-guiding structure 108, and multiple dust collection chambers 109. The multiple dust collection chambers 109 are located in the middle of the housing 101. The multiple dust collection chambers 109 are isolated from each other and arranged in a matrix in the horizontal direction. Each dust collection chamber 109 is provided with a dust collection component. Each dust collection component includes multiple rows of sintered plates 110. The multiple rows of sintered plates 110 are arranged in parallel and staggered. The multiple sintered plates 110 in each row are arranged in parallel. The arrangement direction of the sintered plates 110 in two adjacent dust collection chambers 109 is different. Cyclone separator 105 is connected to the air inlet 103 at the top. Cyclone separator 105 is provided with an exhaust port 106 and a discharge port 107. The discharge port 107 of cyclone separator 105 is connected to the ash hopper 102. Cyclone separator 105 is used to separate the first part of dust in the incoming dust-laden airflow and transport the first part of dust to the ash hopper 102. The flow guiding structure 108 is located below the multiple dust removal chambers 109 and is opposite to the exhaust port 106 of cyclone separator 105. The spiral airflow carrying the second part of dust discharged from the exhaust port 106 of cyclone separator 105 flows upward under the action of flow guiding structure 108. The reverse flow airflow enters the dust removal chamber 109 from below. The mass of the first part of dust is greater than that of the second part of dust.

[0020] The working principle of the above embodiments is briefly described below: This top-intake, dual-stage flow-guiding sintered plate dust collector adopts an overall layout of top air intake, middle filtration, and bottom flow-guiding and reverse flow. Through a synergistic dust removal method of cyclone pre-separation, dual-stage flow-guiding and reverse flow, and matrix zoned staggered filtration, it achieves graded purification and uniform filtration of dust-laden airflow. The overall airflow follows a complete path: top air intake, cyclone coarse separation, downward exhaust, flow-guiding and reverse flow, bottom entry into dust collection chamber 109, fine filtration, and clean air discharge. The specific working process and related advantages are as follows: An air inlet 103 is provided with an air inlet pipe 5. The dust-laden airflow enters the equipment from the air inlet 103 at the top of the housing 101. The top air intake method is consistent with the natural settling direction of the dust, which can reduce secondary dust generation during dust removal, reduce equipment resistance and fan energy consumption, reduce the scouring and wear of dust on the sintered plate 110, and extend the service life of the equipment.

[0021] The dust-laden airflow entering the equipment first enters the cyclone separator 105, which is connected to the air inlet 103. The cyclone separator 105 performs cyclone separation on the dust-laden airflow, using centrifugal force to separate the larger coarse dust particles in the airflow. The separated coarse dust particles are directly transported to the ash hopper 102 at the bottom of the housing 101 through the discharge port 107 of the cyclone separator 105 for collection, thus initially reducing the dust concentration in the airflow and completing the first stage of coarse separation.

[0022] After being processed by the cyclone separator 105, the spiral airflow carrying fine dust particles is discharged downward from the exhaust port 106 of the cyclone separator 105 and enters the area of ​​the guide structure 108 located below the dust removal chamber 109. The guide structure 108 is directly opposite the exhaust port 106, which forces the downward spiral airflow to turn, evenly split and reverse upward, breaking the original downward flow pattern and sending the airflow smoothly and evenly from the bottom of each dust removal chamber 109 into the interior of the dust removal chamber 109, so that the air intake volume and flow velocity of each dust removal chamber 109 are basically the same, avoiding local airflow overload and short-circuit flow.

[0023] Multiple dust collection chambers 109 are located in the middle of the housing 101, arranged in a matrix in the horizontal direction and isolated from each other. The dust-laden airflow, after being guided and reversed, enters each dust collection chamber 109 evenly from the bottom. The dust collection component in each dust collection chamber 109 is the core filter unit. Multiple rows of sintered plastic plates 110 are arranged in parallel and staggered manner. Multiple sintered plastic plates 110 in each row are kept parallel, and the sintered plastic plates 110 in adjacent dust collection chambers 109 are arranged in different directions, so that the airflow entering the dust collection chamber 109 cannot form a straight through channel. It is forced to form a zigzag flow path through the filter material along the staggered arrangement of the sintered plastic plates 110. Fine dust particles in the airflow are efficiently intercepted by the surface of the sintered plastic plates 110, completing the second stage of fine filtration and achieving thorough purification of the dust-laden airflow.

[0024] The clean gas filtered by the sintered plate 110 converges in the upper part of the inner cavity of the housing 101 and is discharged from the equipment through the air outlet 104 near the top of the side wall of the housing 101. The fine dust particles trapped by the sintered plate 110 fall off under the action of gravity and fall into the ash hopper 102, where they are collected with the coarse dust particles separated by the cyclone separator 105, completing the unified collection and subsequent discharge of dust, thus completing the entire dust removal cycle.

[0025] The top-inlet dual-stage flow-guiding sintered plate dust collector of the present invention achieves graded purification of dust-laden airflow and precise flow field control through a hierarchical collaborative design of top air inlet, cyclone separator 105 for coarse separation, flow-guiding structure 108 for lower reverse flow, central matrix-type isolation dust collection chamber 109, and staggered sintered plates 110. This solves the problems of uneven airflow distribution, local filtration overload, and secondary dust entrainment in traditional sintered plate dust collectors. While improving the filtration efficiency of fine dust, it also reduces the erosion and wear of the sintered plates 110, achieving a dual improvement in dust removal efficiency and equipment durability.

[0026] Based on the above embodiments, in order to further ensure that the airflow and velocity entering each dust removal chamber 109 are consistent, and to avoid local overload and short-circuit flow.

[0027] like Figure 1 As shown, the flow guiding structure 108 includes a flow guiding groove 202, a flow guiding cone 203, and multiple flow splitting plates 201. The sidewall of the flow guiding groove 202 is an inverted cone shape. The flow guiding cone 203 is located directly below the exhaust port 106 of the cyclone separator 105 and is coaxially arranged with the flow guiding groove 202. The flow guiding cone 203 is used to disperse the airflow discharged from the exhaust port 106. The flow guiding groove 202 folds the dispersed airflow upward through its own inner wall. The multiple flow splitting plates 201 are located between the sidewall of the flow guiding cone 203 and the sidewall of the flow guiding groove 202. The multiple flow splitting plates 201 are used to split the folded airflow so that the folded airflow can be evenly dispersed into multiple dust removal chambers 109.

[0028] The spiral airflow discharged downwards from the exhaust port 106 of the cyclone separator 105 first impacts and contacts the guide cone 203 directly below. Guided by the conical surface of the guide cone 203, it is radially and evenly dispersed, preventing the airflow from concentrating and rushing directly. The dispersed airflow moves along the inner wall of the inverted conical guide groove 202 and is forced upward by the inner wall of the guide groove 202, completing the airflow reversal from downward to upward. During the reversal process, the airflow is further divided by the diverter plate 201, so that the airflow is evenly distributed to the bottom of each dust removal chamber 109, thereby further ensuring that the airflow rate and velocity entering each dust removal chamber 109 are consistent, avoiding local overload and short-circuit flow.

[0029] As a preferred option, such as Figure 1As shown, the multiple diversion plates 201 are all vertically arranged and connected to the sidewall of the guide cone 203. The multiple diversion plates 201 are arranged radially with the axis of the guide cone 203 as the center. Each diversion plate 201 is located between two adjacent dust collection chambers 109. The multiple diversion plates 201 have different heights and are distributed in a stepped manner. The diversion plates 201 are arranged vertically and radially with the guide cone 203 as the center, which can divide the reversible airflow into equal portions according to the number and position of the dust collection chambers 109. Each diversion plate 201 precisely separates adjacent dust collection chambers 109, preventing airflow interference between different dust collection chambers 109. Since the airflow discharged from the exhaust port 106 of the cyclone separator 105 is a spiral downward airflow, and the flow divider 201 adopts a stepped height distribution, it can guide and divide the spiral airflow layer by layer and step by step, avoiding the sudden increase in instantaneous resistance and eddies caused by uniform height, making the upward reversal process of the airflow more stable and smooth, and further improving the uniformity of airflow distribution.

[0030] As a preferred option, such as Figure 1 and Figure 2 As shown, the inner cavity of the housing 101 is provided with an airflow channel 3, and the multiple dust collection chambers 109 are arranged around the airflow channel 3. The cyclone separator 105 is arranged vertically in the airflow channel 3, and the outer edge of the guide cone 203 is larger than the circumscribed circle diameter of the airflow channel 3. The cyclone separator 105 is vertically arranged in the airflow channel 3 in the middle of the housing 101, and the multiple dust collection chambers 109 are arranged around the airflow channel 3, making the overall structure more compact and the flow field more symmetrical. The outer edge of the guide cone 203 is larger than the circumscribed circle diameter of the airflow channel 3, which can completely block the downward airflow in the airflow channel 3 from directly passing through the guide cone 203 and entering the lower ash hopper 102 area. This forces all airflow to be dispersed by the guide cone 203 and deflected by the guide channel 202 before entering the dust collection chamber 109, preventing airflow short-circuiting and ensuring that all airflow is evenly distributed before filtration.

[0031] As a preferred option, such as Figure 1 and Figure 2As shown, the cyclone separator 105 includes a composite air duct and a spiral guide plate 401. The composite air duct includes a first conical cylinder 402 and a second conical cylinder 403. The first conical cylinder 402, the second conical cylinder 403, and the spiral guide plate 401 are all coaxially arranged. The first conical cylinder 402 is located in the airflow channel 3, and its bottom end is connected to the second conical cylinder 403. An annular platform is provided between the first conical cylinder 402 and the second conical cylinder 403. The stepped surface 404, the discharge port 107 is located on the side wall of the conical cylinder 402 outside the stepped surface 404, the spiral guide plate 401 is located inside the conical cylinder 402, the spiral guide plate 401 is used to guide the airflow entering the conical cylinder 402, so that the airflow moves in a spiral motion toward the conical cylinder 403, the exhaust port 106 is located at the bottom end of the conical cylinder 403, and the guide cone 203 is located below the conical cylinder 403. After the dust-laden airflow enters the first conical cylinder 402 through the inlet 103, it undergoes a regular spiral motion along the inner wall of the first conical cylinder 402 towards the second conical cylinder 403 under the directional guidance of the spiral guide plate 401. Centrifugal force throws the larger dust particles in the airflow toward the inner wall of the first conical cylinder 402. The dust slides down the inner wall to the stepped surface 404 and then directly enters the ash hopper 102 through the discharge port 107 for collection. The dust-laden airflow after coarse separation enters the second conical cylinder 403 along the spiral trajectory. The second conical cylinder 403 constricts and guides the spiral airflow, keeping it in a stable flow state and discharging it from the bottom exhaust port 106, precisely directing it toward the lower guide structure 108. This structure makes the coarse particle separation of the cyclone separator 105 more efficient and the airflow discharge more regular, significantly improving the pre-separation efficiency while laying the foundation for the flow equalization effect of the subsequent guide structure 108, further reducing the filtration load of the sintered plate 110 and extending its service life.

[0032] As a preferred option, such as Figure 1 As shown, the housing 101 is equipped with a pulse jet cleaning system located above the dust collection chamber 109. The system includes an air tank, a pulse control valve, and multiple jet pipes. The air tank is connected to the jet pipes via the pulse control valve. Each jet pipe corresponds to a row of sintered plastic plates 110. Multiple jet holes are provided on the side wall of each jet pipe for blowing onto the sintered plastic plates 110. During dust collector operation, the pulse valve is opened and closed according to the filtration resistance of the sintered plastic plates 110 or a timed command. High-pressure purified air from the air tank is sprayed at high speed through the jet holes of the jet pipes onto the surface of the sintered plastic plates 110, forming a reverse airflow impact. This causes the dust layer adsorbed on the surface of the sintered plastic plates 110 to instantly fall off. The fallen dust falls into the ash hopper 102 under the assistance of gravity and the airflow below the guide structure 108, completing the cleaning cycle and preventing clogging of the sintered plastic plates 110, thus maintaining stable filtration accuracy and processing airflow of the equipment.

[0033] As a preferred option, such as Figure 1 As shown, the top inner wall of the ash hopper 102 is provided with an annular ash baffle 7, with the outer edge of the baffle 7 being higher than the inner edge. The annular ash baffle 7 is provided on the top inner wall of the ash hopper 102, and the outer edge is higher than the inner edge to form an inwardly inclined annular ash baffle surface; on the one hand, it can prevent the upward airflow in the area of ​​the guide structure 108 from directly washing over the dust collected in the ash hopper 102, preventing the dust from being rolled up by the airflow and forming secondary dust; on the other hand, it can guide the falling dust, so that the dust falls more smoothly into the bottom of the ash hopper 102, avoiding the accumulation of dust at the top of the ash hopper 102 or sticking to the wall, and improving the stability of dust collection and discharge.

[0034] As a preferred option, such as Figure 1 and Figure 2 As shown, in the multiple rows of sintered plates 110 of the same dust removal component, the spacing between two adjacent sintered plates 110 is equal. The distance between two adjacent rows of sintered plates 110 of the same dust removal component is 200mm. After the dust-carrying airflow enters the dust removal chamber 109, a regular and uniform zigzag flow path is formed between the equidistant and precisely staggered sintered plates 110. The windward area and the width of the surrounding flow channel of each sintered plate 110 are kept highly consistent, so that the airflow can pass through all areas of the filter plate at a stable flow rate, completely avoiding local airflow velocity that is too high or too low due to the different widths of the channels. Areas with excessively high flow velocity will cause erosion and wear of the sintered plate 110, while areas with excessively low flow velocity are prone to dust accumulation. This precise staggered design eliminates these two problems at the flow path level, ensuring that the overall filtration load of the sintered plate 110 is uniform and significantly reducing local erosion and wear.

[0035] As a preferred option, such as Figure 1 As shown, the bottom of the ash hopper 102 is equipped with an ash discharge valve 6. By setting the ash discharge valve 6, the ash hopper 102 can be cleaned in a timely manner, which can prevent excessive dust accumulation in the ash hopper 102, prevent the accumulated dust from being re-rolled up by the airflow in the housing 101 and causing secondary dust, ensure that the collected dust can be stably discharged, and ensure that the dust removal efficiency of the entire dust removal system is always at a stable level.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A top-inlet, two-stage flow-guiding sintered plate dust collector, comprising a housing and a dust hopper, wherein the dust hopper is located at the bottom of the housing, an air inlet is provided at the top of the housing, and an air outlet is provided on the side wall of the housing near the top, characterized in that, Also includes: Multiple dust collection chambers are located in the middle of the housing. The multiple dust collection chambers are isolated from each other and arranged in a matrix in the horizontal direction. Each dust collection chamber is equipped with a dust collection component. Each dust collection component includes multiple rows of sintered plastic plates. The multiple rows of sintered plastic plates are arranged in parallel and staggered. The multiple sintered plastic plates in each row are arranged in parallel, and the arrangement direction of the sintered plastic plates in two adjacent dust collection chambers is different. A cyclone separator is connected to the air inlet of the top air inlet. The cyclone separator is provided with an exhaust port and a discharge port. The discharge port of the cyclone separator is connected to the ash hopper. The cyclone separator is used to separate the first part of the dust in the incoming dust-laden airflow and transport the first part of the dust to the ash hopper. The flow guiding structure is located below multiple dust collection chambers and opposite to the exhaust port of the cyclone separator. The spiral airflow carrying the second part of dust discharged from the exhaust port of the cyclone separator flows upward under the action of the flow guiding structure. The reverse airflow enters the dust collection chamber from below. The mass of the first part of dust is greater than that of the second part of dust.

2. The top-inlet dual-stage flow-guiding sintered plate dust collector as described in claim 1, characterized in that, The flow guiding structure includes a flow guiding channel, a flow guiding cone, and multiple flow splitters. The sidewall of the flow guiding channel is an inverted cone shape. The flow guiding cone is located directly below the exhaust port of the cyclone separator and is coaxially arranged with the flow guiding channel. The flow guiding cone is used to disperse the airflow discharged from the exhaust port. The flow guiding channel folds the dispersed airflow upward through its own inner wall. The multiple flow splitters are located between the sidewall of the flow guiding cone and the sidewall of the flow guiding channel. The multiple flow splitters are used to split the folded airflow so that the folded airflow can be evenly dispersed into multiple dust removal chambers.

3. The top-inlet dual-stage flow-guiding sintered plate dust collector as described in claim 2, characterized in that, The multiple diversion plates are all vertically arranged and connected to the side wall of the guide cone. The multiple diversion plates are arranged radially with the axis of the guide cone as the center. Each diversion plate is located between two adjacent dust removal chambers. The multiple diversion plates have different heights and are distributed in a stepped manner.

4. The top-inlet dual-stage flow-guiding sintered plate dust collector as described in claim 3, characterized in that, The inner cavity of the box is provided with an airflow channel, the multiple dust removal chambers are arranged around the airflow channel, the cyclone separator is arranged vertically in the airflow channel, and the outer edge of the guide cone is larger than the circumcircle diameter of the airflow channel cross-section.

5. The top-inlet dual-stage flow-guiding sintered plate dust collector as described in claim 1, characterized in that, The cyclone separator includes a composite air duct and a spiral guide plate. The composite air duct includes a first conical cylinder and a second conical cylinder. The first conical cylinder, the second conical cylinder, and the spiral guide plate are all coaxially arranged. The first conical cylinder is located in the airflow channel. The top end of the first conical cylinder is connected to the air inlet, and the bottom end of the first conical cylinder is connected to the second conical cylinder. An annular stepped surface is provided between the first conical cylinder and the second conical cylinder. The discharge port is located on the side wall of the first conical cylinder outside the stepped surface. The spiral guide plate is located inside the first conical cylinder and is used to guide the airflow entering the first conical cylinder, causing the airflow to spiral towards the second conical cylinder. The exhaust port is located at the bottom end of the second conical cylinder, and the guide cone is located below the second conical cylinder.

6. The top-inlet dual-stage flow-guiding sintered plate dust collector as described in claim 1, characterized in that, The chamber is equipped with a pulse jet cleaning system located above the dust removal chamber. The pulse jet cleaning system includes an air tank, a pulse control valve, and multiple jet pipes. The air tank is connected to the multiple jet pipes through the pulse control valve. Each jet pipe corresponds to a row of sintered plastic plates. Multiple jet holes are provided on the side wall of each jet pipe for jet cleaning the sintered plastic plates.

7. The top-inlet dual-stage flow-guiding sintered plate dust collector as described in claim 1, characterized in that, In the multiple rows of sintered plates of the same dust removal component, the spacing between two adjacent sintered plates is equal.

8. The top-inlet dual-stage flow-guiding sintered plate dust collector as described in claim 1, characterized in that, The top inner wall of the ash hopper is provided with an annular ash baffle plate, with the outer edge of the ash baffle plate being higher than the inner edge.

9. The top-inlet dual-stage flow-guiding sintered plate dust collector as described in claim 1, characterized in that, The bottom of the ash hopper is equipped with an ash discharge valve.

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