Fuel ash particle trapping and purifying device

Abstract

The invention discloses a trapping and purifying device for fuel ash particles. The trapping and purifying device comprises a shell, a partition plate, a filtering assembly and an electrostatic dust collection assembly. According to the invention, tiny particles can be effectively trapped, the trapping efficiency is obviously improved, and increasingly strict environmental protection standards are met. The escape opportunity of the particulate matters is reduced through the arrangement of twice trapping, and the purification effect is ensured to be more ideal. By applying the electrostatic dust collection assembly, tiny particles can be effectively removed, and harm to the atmospheric environment and human health is reduced. The device can adapt to changes of different working conditions, and has high environmental adaptability. By arranging the partition plate and the cavity, the device can cope with complex environments in industrial production and adapt to different operation conditions. And the wear and blockage of equipment are reduced through effective trapping and purification, the service life of the equipment is prolonged, and the maintenance cost is reduced. Through effective treatment of the fuel ash, the method is beneficial for realizing recovery and efficient utilization of resources, and environmental pollution is reduced.

Description

Technical Field

[0001] This invention relates to the fields of environmental protection and energy technology, specifically to a device for capturing and purifying fuel ash particles. Background Technology

[0002] With rapid industrialization, environmental protection and efficient resource utilization have become crucial global concerns. Fuel ash, a byproduct of industrial production, contains significant amounts of particulate pollutants. Direct discharge without treatment will severely harm the atmospheric environment and human health. Current technologies for treating fuel ash suffer from the following problems: Low capture efficiency: Traditional equipment has low capture efficiency for fine particulate matter, making it difficult to meet increasingly stringent environmental standards. Unsatisfactory purification effect: Particulate matter easily escapes during treatment, resulting in unsatisfactory purification effects. Poor adaptability: Traditional equipment is poorly adaptable to changing operating conditions, making it difficult to cope with the complex environments of industrial production. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention provide a fuel ash particle capture and purification device.

[0005] The fuel ash particle collection and purification device of this invention includes a shell, a partition, a filter assembly, and an electrostatic dust removal assembly. The partition is disposed within the shell and divides the shell into an upper chamber and a lower chamber. The shell has an upper inlet and an upper outlet communicating with the upper chamber, and a lower inlet and a lower outlet communicating with the lower chamber. The lower inlet is used for primary collection of fuel ash in the lower chamber. The lower outlet is connected to the upper inlet so that the fuel ash collected in the lower chamber after primary collection enters the upper chamber for secondary collection. The fuel ash collected after secondary collection is discharged through the upper outlet. The filter assembly is disposed in the lower chamber for primary collection of fuel ash. The electrostatic dust removal assembly is disposed in the upper chamber for secondary collection of fuel ash.

[0006] In some embodiments, the filtering assembly includes a plurality of filter screens arranged at intervals along the direction from the lower inlet to the lower outlet.

[0007] In some embodiments, the aperture of the filter holes of the plurality of filter screens gradually decreases along the direction from the lower inlet to the lower outlet.

[0008] In some embodiments, a cleaning assembly is provided between two adjacent filter screens. The cleaning assembly includes a telescopic rod, a support rod, and a scraper. The telescopic rod is connected to the support rod to drive the support rod to move in a vertical direction. The scraper is disposed on the support rod to scrape off the fuel ash adsorbed on the filter screen when the support rod moves in a vertical direction.

[0009] In some embodiments, the scrapers are multiple and spaced apart in a vertical direction.

[0010] In some embodiments, the bottom plate of the housing is provided with a slag discharge port, which is used to discharge the fuel ash collected in the lower chamber and cleaned by the cleaning component. The slag discharge port is provided with a slag discharge door, which is rotatably connected to the housing.

[0011] In some embodiments, the fuel ash particle collection and purification device of the present invention further includes a conical hood, which is disposed inside the housing and one end is connected to the inner wall of the housing. The cross-sectional area of ​​the conical hood gradually decreases along the direction from the lower inlet to the lower outlet, and the conical hood is connected to the lower outlet.

[0012] In some embodiments, the lower outlet is connected to the upper inlet via a connecting pipe. The conical shroud contains a motor and an impeller. The motor is connected to the impeller to drive the impeller to rotate. The impeller is used to drive the fuel ash collected in the lower chamber after one pass through the connecting pipe into the upper chamber.

[0013] In some embodiments, the electrostatic dust removal assembly includes a plurality of spaced-apart electrode plates, with an adsorption channel defined between two adjacent electrode plates, the adsorption channel being connected to the upper inlet and the upper outlet respectively.

[0014] In some embodiments, the electrode plate has a plurality of spaced-apart turbulence columns on at least one side in its thickness direction.

[0015] The fuel ash particle collection and purification device of this invention, through the inclusion of a filter assembly and an electrostatic precipitator, effectively captures fine particulate matter, significantly improving collection efficiency and meeting increasingly stringent environmental standards. The dual-collection setup reduces the chance of particulate matter escaping, ensuring a more ideal purification effect. The application of the electrostatic precipitator effectively removes fine particulate matter, reducing harm to the atmospheric environment and human health. The design of this invention adapts to different operating conditions, exhibiting strong environmental adaptability. The partition and chamber configuration allows the device to cope with the complex environments of industrial production and adapt to different operating conditions. Effective collection and purification reduce equipment wear and clogging, extend equipment lifespan, and lower maintenance costs. Through the effective treatment of fuel ash, this invention contributes to resource recycling and efficient utilization, reducing environmental pollution. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the fuel ash particle collection and purification device according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the fuel ash particle collection and purification device according to an embodiment of the present invention.

[0018] Figure 3 This is a front sectional view of the fuel ash particle collection and purification device according to an embodiment of the present invention.

[0019] Figure 4 This is a top sectional view of the fuel ash particle collection and purification device according to an embodiment of the present invention.

[0020] Figure label: 1. Shell; 101. Upper inlet; 102. Upper outlet; 103. Lower inlet; 104. Lower outlet; 2. Baffle; 3. Upper chamber; 4. Lower chamber; 5. Filter assembly; 501. Filter screen; 6. Electrostatic dust removal assembly; 601. Electrode plate; 602. Adsorption channel; 603. Baffle column; 7. Cleaning assembly; 701. Telescopic rod; 702. Support rod; 703. Scraper; 8. Conical cover; 9. Connecting pipe; 10. Motor; 11. Impeller. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] With rapid industrialization, environmental protection and efficient resource utilization have become crucial global concerns. Fuel ash, a byproduct of industrial production, contains significant amounts of particulate pollutants. Direct discharge without treatment will severely harm the atmospheric environment and human health. Current technologies for treating fuel ash suffer from the following problems: Low capture efficiency: Traditional equipment has low capture efficiency for fine particulate matter, making it difficult to meet increasingly stringent environmental standards. Unsatisfactory purification effect: Particulate matter easily escapes during treatment, resulting in unsatisfactory purification effects. Poor adaptability: Traditional equipment is poorly adaptable to changing operating conditions, making it difficult to cope with the complex environments of industrial production.

[0023] like Figures 1 to 4 As shown, the fuel ash particle collection and purification device of this embodiment includes a shell 1, a partition 2, a filter assembly 5, and an electrostatic precipitator 6. The partition 2 is disposed within the shell 1 and divides the shell 1 into an upper chamber 3 and a lower chamber 4. The shell 1 has an upper inlet 101 and an upper outlet 102 communicating with the upper chamber 3, and a lower inlet 103 and a lower outlet 104 communicating with the lower chamber 4. The lower inlet 103 is used for primary collection of fuel ash particles entering the lower chamber 4. The lower outlet 104 communicates with the upper inlet 101, allowing the fuel ash particles collected in the lower chamber 4 to enter the upper chamber 3 for secondary collection. The secondary-collected fuel ash particles are discharged through the upper outlet 102. The filter assembly 5 is disposed within the lower chamber 4 for primary collection of fuel ash particles; the electrostatic precipitator 6 is disposed within the upper chamber 3 for secondary collection of fuel ash particles.

[0024] In use, the fuel ash particle collection and purification device of this embodiment of the invention first enters the lower chamber 4 through the lower inlet 103 for primary collection. The filter assembly 5 is located in the lower chamber 4 to capture larger particles, reducing the number of particles entering the upper chamber 3. After primary collection, the fuel ash enters the upper inlet 101 through the lower outlet 104, and then enters the upper chamber 3 for secondary collection. The electrostatic precipitator 6 is located in the upper chamber 3, utilizing electrostatic principles to capture fine particles, improving the overall purification effect.

[0025] The fuel ash particle collection and purification device of this invention, by incorporating a filter assembly 5 and an electrostatic precipitator 6, effectively captures fine particulate matter, significantly improving collection efficiency and meeting increasingly stringent environmental standards. The dual-collection setup reduces the chance of particulate matter escaping, ensuring a more ideal purification effect. The application of the electrostatic precipitator 6 effectively removes fine particulate matter, reducing harm to the atmospheric environment and human health. The design of this invention can adapt to changes in different operating conditions, exhibiting strong environmental adaptability. The partition 2 and chamber configuration enable the device to cope with complex environments in industrial production and adapt to different operating conditions. Effective collection and purification reduce equipment wear and clogging, extend equipment lifespan, and lower maintenance costs. Through the effective treatment of fuel ash, this invention contributes to resource recycling and efficient utilization, reducing environmental pollution.

[0026] In some embodiments, the filter assembly 5 includes a plurality of filter screens 501, which are spaced apart along the direction from the lower inlet 103 to the lower outlet 104.

[0027] Multiple filter screens 501 are arranged at intervals along the direction from the lower inlet 103 to the lower outlet 104, forming a multi-stage filtration system. The multi-stage filter screens 501 can more effectively trap particles of different sizes, thereby improving the overall filtration efficiency. The interval arrangement of the filter screens 501 helps reduce pressure loss during airflow, preventing particles from penetrating the filter screens 501 due to excessive pressure. Through multi-stage filtration, larger particles are trapped at the front, reducing the burden on the subsequent filter screens 501, thus extending the service life of the filter assembly 5. The interval arrangement facilitates the individual removal and cleaning of each filter screen 501, reducing maintenance difficulty and cost. The multi-stage filter screens 501 can be configured with adjustable material and pore size according to actual operating conditions to adapt to different operating conditions and contaminant characteristics. More efficient filtration means that more useful resources can be recovered from fuel ash, improving resource utilization.

[0028] In some embodiments, the aperture of the filter holes of the plurality of filter screens 501 gradually decreases along the direction from the lower inlet 103 to the lower outlet 104.

[0029] The pore size of filter 501 gradually transitions from a larger value at the lower inlet 103 to a smaller value at the lower outlet 104. This gradual arrangement facilitates step-by-step filtration according to particle size. Larger particles are first captured in the larger-pore filter 501. As the airflow passes through the subsequent smaller-pore filter 501, even smaller particles are effectively trapped.

[0030] The gradually decreasing pore size ensures that particles of different sizes can be effectively captured, thereby improving the overall filtration effect. Since larger particles are captured earlier, the load on subsequent filter screens 501 is reduced, which helps to reduce airflow resistance as it passes through the filter assembly 5. This arrangement maximizes the filtration capacity of filter screen 501, improving the capture efficiency of fine particles. Because larger particles are trapped in the earlier filter screens 501, the wear and clogging of subsequent filter screens 501 is reduced, thus extending the service life of filter screen 501. Due to the gradually decreasing pore size of filter screens 501, the distribution of particles on each filter screen 501 is more uniform, facilitating cleaning and maintenance. More efficient filtration helps optimize the recovery of valuable components from fuel ash, improving resource utilization efficiency. This arrangement can adjust the material and pore size of filter screen 501 according to actual needs to adapt to different industrial production environments and particulate characteristics.

[0031] In some embodiments, a cleaning assembly 7 is provided between two adjacent filter screens 501. The cleaning assembly 7 includes a telescopic rod 701, a support rod 702, and a scraper 703. The telescopic rod 701 is connected to the support rod 702 to drive the support rod 702 to move in the vertical direction. The scraper 703 is provided on the support rod 702 to scrape off the fuel ash adsorbed on the filter screen 501 when the support rod 702 moves in the vertical direction.

[0032] The cleaning assembly 7 includes a telescopic rod 701, a support rod 702, and a scraper 703. The telescopic rod 701 drives the support rod 702 to move vertically. The scraper 703 is fixed to the support rod 702, and when the support rod 702 moves, the scraper 703 scrapes off the fuel ash adsorbed on the filter screen 501. The cleaning assembly 7 can be set to operate automatically or semi-automatically to clean the filter screen 501 periodically, reducing manual intervention. Periodic cleaning of the filter screen 501 removes accumulated fuel ash, preventing the filter pores from shrinking and thus maintaining filtration efficiency. Automatic cleaning reduces downtime maintenance due to filter screen 501 clogging, improving production efficiency. By promptly removing particles adhering to the filter screen 501, wear on the filter screen 501 is reduced, extending its service life. A clean filter screen 501 has lower airflow resistance, reducing energy consumption during system operation. The automated cleaning process reduces operator contact with dust and particles, improving the safety of the working environment. The cleaning component 7 is generally simple and easy to use, and easy to maintain and operate. The cleaning component 7 can be adjusted in terms of its working frequency and intensity according to actual needs to adapt to different working conditions and the clogging speed of the filter 501.

[0033] In some embodiments, there are multiple scrapers 703 arranged at intervals along the vertical direction.

[0034] Instead of a single scraper, there are multiple scrapers 703, arranged vertically at intervals on the support rod 702. Multiple scrapers 703 can cover a larger area of ​​the filter screen 501, ensuring the entire filter screen 501 is clean. The spaced-out arrangement of the scrapers 703 allows for distributed cleaning of the filter screen 501 as the support rod 702 moves, improving cleaning efficiency. Multiple scrapers 703 can act simultaneously on the filter screen 501, accelerating the cleaning process and increasing efficiency. The distributed scrapers 703 help to evenly remove fuel ash from different parts of the filter screen 501, avoiding localized clogging. Because the scrapers 703 are arranged vertically at intervals, blind spots during cleaning are reduced, ensuring comprehensive cleaning of the filter screen 501. The dispersed scraper action helps reduce environmental impact caused by particulate matter resuspension during cleaning. The arrangement of multiple scrapers 703 makes it easier to adapt to filter screens 501 of different shapes and sizes, increasing the versatility of the cleaning assembly 7. The use of multiple scrapers 703 can reduce the risk of system downtime due to the failure of a single scraper 703, thereby improving the reliability of the entire system. Multiple scrapers 703 are generally easy to install and maintain, simplifying maintenance procedures.

[0035] In some embodiments, the bottom plate of the housing 1 is provided with a slag discharge port, which is used to discharge the fuel ash residue collected in the lower chamber 4 and cleaned by the cleaning component 7. A slag discharge door is provided at the slag discharge port, and the slag discharge door is rotatably connected to the housing 1.

[0036] The ash discharge port is located on the bottom plate of the shell 1 and is used to discharge the collected fuel ash. A ash discharge door is provided at the ash discharge port; this door can be flipped and connected to the shell 1 for easy opening and closing. The ash discharge door may be configured for mechanized operation, such as hydraulic or electric drive, to achieve automatic or remote control.

[0037] The installation of ash discharge ports and gates simplifies and expedites the discharge of fuel ash. Mechanized operation of the discharge gates allows for rapid ash removal, reducing manual operation time and labor intensity. Effective sealing of the discharge gates prevents environmental pollution from fuel ash during discharge. The gates also minimize direct contact between operators and ash, improving operational safety. The tilting mechanism of the discharge gates facilitates cleaning and maintenance. The discharge gates can be configured in different sizes and shapes to accommodate various types of fuel ash and discharge requirements. This efficient ash removal process reduces equipment downtime and lowers operating costs. The installation of ash discharge ports and gates helps maintain the cleanliness and efficient operation of the entire fuel ash particle collection and purification system.

[0038] In some embodiments, the fuel ash particle collection and purification device of the present invention further includes a conical hood 8, which is disposed inside the housing 1 and one end is connected to the inner wall of the housing 1. The cross-sectional area of ​​the conical hood 8 gradually decreases along the direction from the lower inlet 103 to the lower outlet 104, and the conical hood 8 is connected to the lower outlet 104.

[0039] A conical shroud 8 is disposed within the housing 1, with one end connected to the inner wall of the housing 1 and the other end communicating with the lower outlet 104. The cross-sectional area of ​​the conical shroud 8 gradually decreases along the direction from the lower inlet 103 to the lower outlet 104, forming a guiding structure. The arrangement of the conical shroud 8 helps guide the airflow and particulate matter towards the lower outlet 104, reducing turbulence in the airflow within the housing 1. The shape of the conical shroud 8 helps guide particulate matter to the lower outlet 104, facilitating subsequent collection and discharge.

[0040] The conical shroud 8 reduces eddies and turbulence in the airflow within the housing 1, improving airflow uniformity and thus optimizing filtration. The conical shroud 8 helps increase the residence time of particles in the filter assembly 5, increasing capture opportunities and improving overall capture efficiency. By reducing airflow resistance, the conical shroud 8 helps reduce energy consumption during system operation. The shape of the conical shroud 8 promotes the settling of larger particles, reducing their suspension time in the airflow. The conical shroud 8 guides particles to the lower outlet 104, making ash and slag discharge more concentrated and convenient. The configuration of the conical shroud 8 can be adjusted according to different operating conditions and particle characteristics to adapt to various operational requirements. Because the conical shroud 8 facilitates particle settling and concentrated discharge, it reduces wear and clogging of the filter screen 501, extending its service life. By improving system operating efficiency and reducing energy consumption, the conical shroud 8 helps reduce maintenance costs.

[0041] In some embodiments, the lower outlet 104 is connected to the upper inlet 101 through a connecting pipe 9. The conical cover 8 is provided with a motor 10 and an impeller 11. The motor 10 is connected to the impeller 11 to drive the impeller 11 to rotate. The impeller 11 is used to drive the fuel ash residue collected once in the lower chamber 4 to enter the upper chamber 3 through the connecting pipe 9.

[0042] The conical shroud 8 houses a motor 10 and an impeller 11. The motor 10 is connected to the impeller 11 to drive it to rotate. The impeller 11 is configured to push fuel ash through the connecting pipe 9 into the upper chamber 3. The lower outlet 104 is connected to the upper inlet 101 via the connecting pipe 9, forming a transmission channel for the fuel ash.

[0043] The combination of motor 10 and impeller 11 provides power to drive fuel ash through connecting pipe 9, improving transmission efficiency. Driven by impeller 11, the fuel ash after primary collection can effectively enter upper chamber 3 for secondary collection, enhancing the overall collection effect. The speed of motor 10 and impeller 11 can be adjusted according to actual operating conditions to adapt to different operating conditions and fuel ash characteristics. Automated transmission reduces manual intervention and improves the system's automation level. Optimizing the impeller 11's configuration and operating efficiency reduces system energy consumption. The motor 10 and impeller 11 configuration typically features high reliability and durability, contributing to improved overall system stability. The motor 10 and impeller 11 configuration is generally easy to maintain and operate, simplifying system maintenance procedures. Improved transmission efficiency reduces equipment downtime and lowers operating costs.

[0044] In some embodiments, the electrostatic dust removal assembly 6 includes a plurality of spaced electrode plates 601, with an adsorption channel 602 defined between two adjacent electrode plates 601, and the adsorption channel 602 is connected to the upper inlet 101 and the upper outlet 102 respectively.

[0045] The electrostatic dust removal assembly 6 includes multiple electrode plates 601, which are arranged at intervals along the airflow direction. Adsorption channels 602 are formed between adjacent electrode plates 601, and these channels are connected to the upper inlet 101 and the upper outlet 102, respectively. An electrostatic field is formed between the electrode plates 601, and when the airflow carrying small particles passes through, the particles are electrostatically adsorbed onto the electrode plates 601.

[0046] The spaced arrangement of multiple electrode plates 601 increases the contact area between particles and the electrode plates 601, improving collection efficiency. The arrangement of the adsorption channel 602 helps optimize the airflow path, reducing turbulence and eddies in the electrostatic precipitator 6. The electrostatic field between adjacent electrode plates 601 helps separate fine particles from the airflow, reducing escape. By optimizing the arrangement of the electrode plates 601 and the adsorption channel 602, the energy consumption of the electrostatic precipitator 6 can be reduced. The spacing and electric field strength of the multiple electrode plates 601 can be adjusted according to actual operating conditions to adapt to different particulate characteristics and emission standards. The electrode plate arrangement typically has high reliability and durability, contributing to improved overall system stability. The electrode plate arrangement is generally easy to clean and maintain, simplifying system maintenance procedures. By improving collection efficiency, the need for subsequent processing steps can be reduced, lowering operating costs.

[0047] In some embodiments, the electrode plate 601 has a plurality of spaced-apart turbulence columns 603 on at least one side in its thickness direction.

[0048] The turbulence columns 603 are located on one side of the electrode plate 601 and are arranged at intervals along the thickness direction of the electrode plate 601. The turbulence columns 603 are designed to turbulent the airflow and increase the contact time between the airflow and the electrode plate 601.

[0049] The turbulence column 603 forces the airflow to generate rotation and vortices near the electrode plate 601, thereby increasing the contact time between the airflow and the electrode plate 601 and improving the particulate matter collection efficiency. The turbulence column 603 helps to more effectively adsorb fine particles onto the electrode plate 601, thus improving the collection efficiency of the electrostatic precipitator assembly 6. By increasing the contact time between the airflow and the electrode plate 601, the turbulence column 603 helps to reduce the number of escaping particles. The turbulence column 603 can improve the airflow distribution near the electrode plate 601, reducing dead zones and local high-velocity areas, thereby improving the overall collection effect. The turbulence column 603 can be adjusted according to actual operating conditions to adapt to different airflow velocities and particulate matter characteristics. The turbulence column 603 helps to improve the collection efficiency of the electrostatic precipitator assembly 6, thereby reducing the need for other purification equipment and improving the reliability of the entire system. The turbulence column 603 is generally easy to clean and maintain, simplifying the system maintenance process. By improving collection efficiency, the need for subsequent processing steps can be reduced, lowering operating costs.

[0050] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fuel ash particle collecting and purifying apparatus characterized by comprising: The utility model relates to a fuel ash separator, which comprises: a housing (1) and a partition plate (2) arranged in the housing (1) and separating the housing (1) into an upper chamber (3) and a lower chamber (4), the housing (1) having an upper inlet (101) and an upper outlet (102) communicating with the upper chamber (3) and a lower inlet (103) and a lower outlet (104) communicating with the lower chamber (4), the lower inlet (103) being used for the fuel ash entering the lower chamber (4) for primary collection, the lower outlet (104) communicating with the upper inlet (101) so that the fuel ash collected in the lower chamber (4) for primary collection enters the upper chamber (3) for secondary collection, and the fuel ash collected for secondary collection being discharged through the upper outlet (102); a filter assembly (5) arranged in the lower chamber (4) for primary collection of the fuel ash; an electrostatic precipitation assembly (6) arranged in the upper chamber (3) for secondary collection of the fuel ash.

2. The fuel ash particulate trapping purification device according to claim 1, characterized by, The filter assembly (5) comprises a plurality of filter screens (501) arranged at intervals along the direction from the lower inlet (103) to the lower outlet (104).

3. The fuel ash particulate trapping purification device according to claim 2, characterized by The pore size of the filter screens (501) gradually decreases along the direction from the lower inlet (103) to the lower outlet (104).

4. The fuel ash particulate trapping purification device according to claim 2, characterized by A cleaning assembly (7) is arranged between two adjacent filter screens (501), the cleaning assembly (7) comprising an extension rod (701), a support rod (702) and a scraper (703), the extension rod (701) being connected with the support rod (702) to drive the support rod (702) to move vertically, and the scraper (703) being arranged on the support rod (702) to scrape off the fuel ash adsorbed on the filter screen (501) when the support rod (702) moves vertically.

5. The fuel ash particulate trapping purification device according to claim 4, characterized by The scraper (703) is in a plurality of pieces and arranged at intervals vertically.

6. The fuel ash particulate trapping purification device according to claim 4, characterized by The bottom plate of the housing (1) is provided with a slag discharge port for discharging the fuel ash collected in the lower chamber (4) and cleaned by the cleaning assembly (7), and the slag discharge port is provided with a slag discharge door reversibly connected with the housing (1).

7. The fuel ash particulate trapping purification device according to claim 1, characterized by The utility model further comprises a conical cover (8) arranged in the housing (1) and connected with the inner wall of the housing (1) at one end, the cross-sectional area of the conical cover (8) gradually decreasing along the direction from the lower inlet (103) to the lower outlet (104), and the conical cover (8) communicating with the lower outlet (104).

8. The fuel ash particulate trapping purification device according to claim 7, characterized by The lower outlet (104) is connected with the upper inlet (101) through a communication pipe (9), the conical cover (8) is provided with a motor (10) and an impeller (11), the motor (10) being connected with the impeller (11) to drive the impeller (11) to rotate, and the impeller (11) being used for driving the fuel ash collected in the lower chamber (4) to enter the upper chamber (3) through the communication pipe (9).

9. The fuel ash particulate trapping purification device according to claim 1, characterized by The electrostatic dust removal assembly (6) comprises a plurality of electrode plates (601) arranged at intervals, and an adsorption channel (602) is defined between two adjacent electrode plates (601), and the adsorption channel (602) is communicated with the upper inlet (101) and the upper outlet (102) respectively.

10. The fuel ash particulate trapping purification device according to claim 9, characterized by The electrode plate (601) is provided with a plurality of turbulence columns (603) arranged at intervals on at least one side in the thickness direction.

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