Treatment device for reducing ABS particle deposition in slurry oil boiler flue gas

Abstract

This invention provides a treatment device for reducing ABS particle deposition in the flue gas of an oil slurry boiler, comprising: a connecting base; a housing installed at the top opening of the connecting base and a reinforcing plate longitudinally installed on the top of the housing, with inclined guide plates installed on both sides of the reinforcing plate; a support pipe longitudinally arranged inside the lower part of the housing, the front end of the support pipe extending through the front end face of the housing, and a reinforcing beam longitudinally fixed to the rear end of the support pipe, the rear end of the reinforcing beam extending through the rear end face of the housing; a rotating shaft vertically rotatably provided at the top rear end of the support pipe, and the top end of the rotating shaft rotatably connected to the bottom surface of the reinforcing plate, wherein a treatment mechanism for reducing ABS particle deposition is sleeved on the rotating shaft, a drive component for rotating the treatment mechanism is provided inside the support pipe, and an ash removal mechanism for cleaning the treatment mechanism is also installed on one side of the reinforcing beam. This device reduces ABS deposition in the flue gas of the oil slurry boiler, reducing the impact on the flow and heat exchange performance of the flue gas.

Description

Technical Field

[0001] This invention relates to the field of particulate matter treatment technology for oil slurry boiler flue gas, and more particularly to a treatment device for reducing the deposition of ABS particles in oil slurry boiler flue gas. Background Technology

[0002] Catalytic slurry boilers are crucial equipment in the refining and chemical industry, requiring enormous amounts of energy. Currently, my country's annual by-product of catalytic slurry is approximately ten million tons. Based on a calorific value of 9300 kcal / kg, the rational utilization of catalytic slurry could save over three million tons of standard coal, demonstrating significant potential and market demand. Therefore, catalytic slurry has become a new option for boiler fuel. Catalytic slurry differs from heavy oil. Heavy oil is the dark-colored residue remaining after crude oil undergoes fractionation and distillation to extract gasoline and diesel. Catalytic cracking is typically a petroleum refining process using distillation by-product oil residue as feedstock, while catalytic slurry is a by-product of catalytic cracking. It has a high calorific value, but due to its high carbon content and low hydrogen content, it is no longer suitable as a refining feedstock and is usually used alone as fuel or mixed with diesel. Problems such as blockage, ash accumulation, coking, and corrosion in air preheaters have long existed during boiler operation, and these are important issues that boiler manufacturers need to address.

[0003] NOx compounds produced during boiler combustion severely harm the atmospheric environment; therefore, all boiler exhaust gases must undergo denitrification treatment. There are two main denitrification technologies: SCR (Selective Catalytic Reduction) and SNCR (Selective Non-Catalytic Reduction). SCR requires a catalyst to reduce NO and NO2 to nitrogen gas using NH3. SCR technology is maturing, achieving a NOx removal rate of over 90%, and has become the primary denitrification process for most boilers. SNCR, on the other hand, does not require a catalyst; it reduces NO and NO2 to nitrogen and water using NH3. Because the reaction temperature of SNCR is generally 900℃~1100℃, the SNCR denitrification process typically takes place within the boiler furnace.

[0004] However, in denitrification technology, the catalyst inevitably oxidizes the sulfur in the fuel. The SO2 generated in the exhaust gas is oxidized to SO3. At the same time, in order to ensure the removal rate of NOx, an excessive amount of ammonia is usually injected during the denitrification process. The excessive ammonia reacts with sulfur trioxide to generate ABS (ammonia bisulfate). ABS ionizes and has weak acidity, which can corrode the heat exchange pipes of the air preheater. ABS is also sticky and can adhere to ash particles in the boiler combustion exhaust gas, accumulating on the heat exchange pipes of the air preheater and coking, leading to a decrease in the heat exchange efficiency of the air preheater, blockage of the flue gas outlet, and further increasing the outlet pressure, posing a great risk to the operation of the boiler. The problem of ABS particle deposition in oil slurry boilers is caused by the combined effect of multiple factors. Among them, ammonium sulfate in the flue gas of oil slurry boilers is the main factor leading to increased deposit stickiness, while flue gas velocity and particle diameter have a significant impact on the deposition problem. In addition, the shape of the pipe cross-section also affects the flue gas flow and heat exchange performance, and the inside of the pipe where deposits occur is also difficult to clean. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this invention provides a treatment device for reducing ABS particle deposition in the flue gas of an oil slurry boiler, thereby reducing the impact on the flow and heat exchange performance of the flue gas.

[0006] To achieve the above objectives, the present invention provides a treatment apparatus for reducing the deposition of ABS particles in the flue gas of an oil slurry boiler, comprising:

[0007] Connecting seat; a housing installed at the top opening of the connecting seat and a reinforcing plate longitudinally installed on the top of the housing, wherein inclined guide plates are installed on both sides of the reinforcing plate;

[0008] The lower part of the outer shell is provided with a longitudinal support tube. The front end of the support tube extends through the front end face of the outer shell, and the rear end of the support tube is longitudinally fixed with a reinforcing beam. The rear end of the reinforcing beam extends through the rear end face of the outer shell.

[0009] The top rear end of the support tube is vertically rotatable with a rotating shaft, and the top end of the rotating shaft is rotatably connected to the bottom surface of the reinforcing plate. A processing mechanism for reducing ABS particle deposition is sleeved on the rotating shaft. A drive assembly for rotating the processing mechanism is provided inside the support tube. A dust removal mechanism for cleaning the processing mechanism is also installed on one side of the reinforcing beam.

[0010] In some embodiments, the processing mechanism includes a fixed frame that is fixedly sleeved on the rotating shaft, a plurality of sealing partitions are installed at the bottom of the fixed frame, a plurality of fan-shaped filter boxes are installed on the fixed frame between the sealing partitions, and a plurality of teardrop-shaped cross-section pipes are vertically arranged inside the fan-shaped filter boxes.

[0011] The bottom of the fan-shaped filter box is also equipped with a positioning sealing plate. The bottom surface of the positioning sealing plate is evenly provided with multiple teardrop-shaped positioning holes. The bottom end of the teardrop-shaped cross-section tube is fixedly inserted into the positioning holes of the positioning sealing plate.

[0012] In some embodiments, a fixing tube is fixedly sleeved on the rotating shaft, and the fixing frame consists of the fixing tube and a disc support fixedly sleeved on the upper and lower ends of the fixing tube; a plurality of the fan-shaped filter boxes are installed between the disc support; the inner end of the sealing partition is also fixedly connected to the outer wall of the fixing tube.

[0013] In some embodiments, the drive assembly includes a servo motor located at the rear end of the support tube, a heat insulation plate mounted on the inner wall of the support tube, and a transverse partition located in the middle of the support tube, wherein the bottom end of the rotating shaft is coaxially fixed to the drive shaft of the servo motor.

[0014] In some embodiments, ventilation openings are provided at the upper and lower ends of both sides of the diaphragm, and cooling fans are installed inside the ventilation openings. A pair of cooling fans on one side of the diaphragm are used for air supply, and a pair of cooling fans on the other side of the diaphragm are used for air exhaust. The middle of the front and rear ends of the diaphragm is provided with longitudinal partitions for flow isolation.

[0015] In some embodiments, the inner wall of the heat insulation plate is provided with multiple longitudinal guide strips, and the inner end of the support tube is arc-shaped. The support tube is provided with a longitudinal slope platform on the top surface inside the outer shell, and multiple vertical brush strips are provided at equal intervals on the top of the slope platform.

[0016] In some embodiments, the ash removal mechanism includes a mounting frame longitudinally disposed on one side of the reinforcing beam, a lead screw longitudinally rotatably disposed in the middle of the mounting frame, air guide pipes longitudinally disposed on both sides inside the mounting frame, a movable seat slidably disposed in the rear end of the mounting frame, and a mounting groove formed on the top of the movable seat.

[0017] In some embodiments, an electric push cylinder is vertically installed inside the mounting slot, and an arc-shaped tube is rotatably installed at the top of the telescopic end of the electric push cylinder. The outer end of the arc-shaped tube is suspended, and both ends of the arc-shaped tube are closed. A support rod is vertically fixed to the bottom of the suspended end of the arc-shaped tube. A servo motor for lead screw drive is provided at the rear end of the mounting frame, and a protective shell is fitted on the servo motor.

[0018] The mounting frame has a sliding seat slidably engaged on one side of its outer wall. An adjustment component for deflecting the arc-shaped tube is mounted on the sliding seat. Multiple high-pressure nozzles with upward-facing nozzles are equidistantly connected to the top of the arc-shaped tube.

[0019] In some embodiments, the adjustment assembly includes a hinged support rod movably hinged to one side of the sliding seat and a limiting block located at the front end of one side of the mounting frame, and a micro motor for adjusting the deflection of the hinged support rod is provided at the bottom of the sliding seat.

[0020] In some embodiments, an upper sealing ring is fixedly provided on the upper inner wall of the housing, and the inner end of the upper sealing ring is sealed and overlapped on the top of the fixing frame; a lower sealing ring is fixedly provided on the lower inner wall of the housing, and the inner end of the lower sealing ring is in close contact with the bottom of the fixing frame; and a clamping cylinder for fastening and fixing multiple fan-shaped filter boxes is installed on the outer wall of the fixing frame.

[0021] This invention, through the cooperation of the outer shell and the processing mechanism, facilitates the improvement of the exhaust gas treatment effect of the oil slurry boiler and can significantly reduce the deposition mass of ABS particles in the flue gas of the oil slurry boiler; through the teardrop-shaped cross-section tube that can follow the fan-shaped filter box in a circular motion, it facilitates the absorption effect of heat in the flue gas and improves the heat accumulation effect, thereby improving the uniformity of air preheating and the heating rate, effectively improving the heat exchange efficiency of the oil slurry boiler.

[0022] This invention also facilitates full-width cleaning of the teardrop-shaped cross-section tubes installed on the entire sector-shaped filter box through the cooperation of the ash removal mechanism and the processing mechanism. By adjusting the components, it is easy to change the angle and range of the arc-shaped tube's ash blowing operation on the teardrop-shaped cross-section tube, improving the cleanliness and efficiency of cleaning deposits on the inner wall of the teardrop-shaped cross-section tube. At the same time, it is easy to bring the high-pressure nozzle closer to the teardrop-shaped cross-section tube, further improving the blowing effect on the deposits on the inner wall of the teardrop-shaped cross-section tube, improving the absorption of heat from the flue gas by the teardrop-shaped cross-section tube, reducing the heat discharged from the flue gas, thereby improving the thermal efficiency of the oil slurry boiler and enhancing the safety performance of the oil slurry boiler during heat exchange. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler, as shown in an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the lower structure of the treatment device for reducing ABS particle deposition in the flue gas of an oil slurry boiler, as shown in an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the deflector plate removal state in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure in the state of the reinforcement plate being removed, as shown in an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure in the shell removal state according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure from another perspective in the case of the shell being removed, as shown in an embodiment of the present invention.

[0029] Figure 7 This is a schematic diagram of the structure of the clamp cylinder in the dismantled state according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the teardrop-shaped cross-section tube structure inside the fan-shaped filter box according to an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the sealing partition structure shown in an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the fan-shaped filter box and positioning sealing plate structure shown in an embodiment of the present invention;

[0033] Figure 11 This is a bottom view of the connecting seat structure according to an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the sealing partition structure shown in an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of the reinforcing beam and ash removal mechanism structure shown in an embodiment of the present invention;

[0036] Figure 14 This is a schematic diagram of the connection structure between the support pipe and the reinforcing beam as shown in an embodiment of the present invention;

[0037] Figure 15 This is a schematic diagram of the rear end structure of the support tube and the reinforcing beam as shown in an embodiment of the present invention;

[0038] Figure 16 This is a schematic diagram of the internal structure of the support tube shown in an embodiment of the present invention. Figure 1 ;

[0039] Figure 17 This is a schematic diagram of the internal structure of the support tube shown in an embodiment of the present invention. Figure 2 ;

[0040] Figure 18 This is a schematic diagram of the internal structure of the support tube shown in an embodiment of the present invention. Figure 3 ;

[0041] Figure 19 This is a schematic diagram of the internal structure of the support tube shown in an embodiment of the present invention. Figure 4 ;

[0042] Figure 20 This is a cross-sectional view of the reinforced beam structure shown in an embodiment of the present invention;

[0043] Figure 21 This is a top sectional view of the mounting frame structure shown in an embodiment of the present invention;

[0044] In the attached figures, the following labels are used:

[0045] 1-Connector;

[0046] 2-Outer shell; 201-Upper sealing ring; 202-Lower sealing ring;

[0047] 3-Reinforcing plate;

[0048] 4-Blow-off plate;

[0049] 5-Support tube; 501-Servo motor; 502-Heat insulation board; 503-Transverse partition; 504-Cooling fan; 505-Longitudinal partition; 5051-Guide strip; 506-Slope platform; 507-Brush strip;

[0050] 6-Reinforcing beam; 601-Mounting frame; 602-Screw screw; 603-Air guide pipe; 604-Moving seat; 605-Mounting groove; 606-Electric pusher cylinder; 607-Arc-shaped tube; 608-Support rod; 609-Servo motor; 610-Sliding seat; 611-Hinged support rod; 612-Micro motor; 613-Support rod;

[0051] 7-Spindle; 701-Fixed Frame; 7011-Fixed Tube; 7012-Disc Support; 702-Sealing Divider; 703-Fan-shaped Filter Box; 704-Teardrop-shaped Section Tube; 705-Positioning Sealing Plate;

[0052] 8-Connecting hose. Detailed Implementation

[0053] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims.

[0054] Certain terms are used in this specification and the following claims to refer to specific components or parts. Those skilled in the art will understand that users or manufacturers may use different names or terms to refer to the same component or part. This specification and the following claims do not distinguish components or parts by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout this specification and the following claims are open-ended and should be interpreted as "including but not limited to". Furthermore, the term "connection" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connections made through other means.

[0055] It should be noted that in the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and "about", or "approximately", "substantially", "left and right", etc., indicating the orientation or positional relationship or parameters, are all based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, a specific size, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] See Figure 1-21 An embodiment of the present invention provides a treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler. The treatment device includes: a connecting seat 1; a housing 2 installed at the top opening of the connecting seat 1 and a reinforcing plate 3 longitudinally installed on the top of the housing 2. Inclined guide plates 4 are installed on both sides of the reinforcing plate 3. One side of the reinforcing plate 3 is an air circulation area, and the other side is a flue gas circulation area. A support pipe 5 is longitudinally arranged inside the lower part of the housing 2. The front end of the support pipe 5 extends through the front end face of the housing 2, and a reinforcing beam 6 is longitudinally fixed to the rear end of the support pipe 5, with the rear end of the reinforcing beam 6 extending through the rear end face of the housing 2. A rotating shaft 7 is vertically rotatably arranged at the top rear end of the support pipe 5, and the top end of the rotating shaft 7 is rotatably connected to the bottom surface of the reinforcing plate 3. A treatment mechanism for reducing ABS particle deposition is sleeved on the rotating shaft 7. A drive assembly for rotating the treatment mechanism is provided inside the support pipe 5. An ash removal mechanism for cleaning the treatment mechanism is also installed on one side of the reinforcing beam 6. In this embodiment, the cooperation between the outer shell 2 and the processing mechanism facilitates the improvement of the exhaust gas treatment effect of the oil slurry boiler and can significantly reduce the deposition quality of ABS particles in the flue gas of the oil slurry boiler.

[0057] Furthermore, in this embodiment, the processing mechanism includes a fixed frame 701 fixedly sleeved on the rotating shaft 7. Multiple sealing partitions 702 are installed at the bottom of the fixed frame 701. Multiple fan-shaped filter boxes 703 are installed on the fixed frame 701 between the sealing partitions 702. Multiple teardrop-shaped cross-section tubes 704 are vertically arranged inside the fan-shaped filter boxes 703. A positioning sealing plate 705 is also installed at the bottom of the fan-shaped filter boxes 703. Multiple teardrop-shaped positioning holes are evenly distributed on the bottom surface of the positioning sealing plate 705. The bottom ends of the teardrop-shaped cross-section tubes 704 are fixedly inserted into the positioning holes of the positioning sealing plate 705. In this embodiment, the narrow diameter cross-section of the teardrop-shaped cross-section tube 704 is all set outwards. The teardrop-shaped cross-section tube 704 facilitates the improvement of the flue gas flow field and optimizes the heat transfer effect. When the flue gas velocity on the pipe surface reaches 7m / s, it is easier to reduce the mass of ABS particle deposition. The teardrop-shaped cross-section tube 704, which can follow the fan-shaped filter box 703 in a circular motion, facilitates the absorption of heat in the flue gas and improves the heat accumulation effect. This, in turn, improves the uniformity of air preheating and the heating rate, effectively improving the heat exchange efficiency of the oil slurry boiler.

[0058] In this embodiment, a fixing tube 7011 is fixedly sleeved on the rotating shaft 7. The fixing frame 701 consists of the fixing tube 7011 and a disc support 7012 fixedly sleeved on the upper and lower ends of the fixing tube 7011. Multiple fan-shaped filter boxes 703 are installed between the disc support 7012. The inner end of the sealing partition 702 is also fixedly connected to the outer wall of the fixing tube 7011. An upper sealing ring 201 is fixedly provided on the upper inner wall of the outer shell 2, and the inner end of the upper sealing ring 201 is sealed and overlapped on the top of the fixing frame 701. A lower sealing ring 202 is fixedly provided on the lower inner wall of the outer shell 2, and the inner end of the lower sealing ring 202 is in close contact with the bottom of the fixing frame 701. A clamping sleeve for fastening and fixing multiple fan-shaped filter boxes 703 is installed on the outer wall of the fixing frame 701.

[0059] Furthermore, in this embodiment, the driving assembly includes a servo motor 501 located at the rear end of the support tube 5, a heat insulation plate 502 installed on the inner wall of the support tube 5, and a transverse partition 503 located in the middle of the support tube 5, wherein the bottom end of the rotating shaft 7 is coaxially fixedly connected to the drive shaft of the servo motor 501. Ventilation openings are provided at the upper and lower ends on both sides of the transverse partition 503, and cooling fans 504 are installed inside the ventilation openings. A pair of cooling fans 504 on one side of the transverse partition 503 are used for air supply, and a pair of cooling fans 504 on the other side of the transverse partition 503 are used for air exhaust. Longitudinal partitions 505 for flow isolation are provided in the middle of both the front and rear ends of the transverse partition 503. The inner wall of the heat insulation plate 505 is provided with multiple longitudinal guide strips 5051, and the inner end of the support tube 5 is arc-shaped. There is a flow passage between the longitudinal partition 505 at the rear end of the transverse partition 503 and the servo motor 501, and there is a drainage space between the servo motor 501 and the inner wall of the rear end of the support tube 5. The support tube 5 is provided with a longitudinal slope platform 506 on the top surface inside the outer shell 2. Multiple vertical brush strips 507 are provided longitudinally at equal intervals on the top of the slope platform 506. Through the cooperation of the slope platform 506 and the brush strips 507, the bottom of the sealing partition can be cleaned by brushing.

[0060] The ash removal mechanism described in this embodiment includes a mounting frame 601 longitudinally disposed on one side of the reinforcing beam 6, a lead screw 602 longitudinally rotatably disposed in the middle of the mounting frame 601, air guide pipes 603 longitudinally disposed on both sides inside the mounting frame 601, a movable seat 604 slidably disposed in the rear end of the mounting frame 601, and a mounting groove 605 formed on the top of the movable seat 604. An electric actuator 606 is vertically installed inside the mounting slot 605. An arc-shaped tube 607 is rotatably installed on the top of the telescopic end of the electric actuator 606. The outer end of the arc-shaped tube 607 is suspended, and both ends of the arc-shaped tube 607 are closed. A support rod 608 is vertically fixed to the bottom of the suspended end of the arc-shaped tube 607. A servo motor 609 for driving a lead screw 602 is provided at the rear end of the mounting frame 601. A protective shell is fitted on the servo motor 609. A sliding seat 610 is slidably engaged on the outer wall of one side of the mounting frame 601. An adjustment component for deflecting the arc-shaped tube 607 is installed on the sliding seat 610. Multiple high-pressure nozzles with upward-facing nozzles are equidistantly connected to the top of the arc-shaped tube 607.

[0061] In this embodiment, the ash removal mechanism facilitates full-width ash removal of the teardrop-shaped cross-section tubes installed on the entire sector-shaped filter box. The adjustable components allow for changes in the angle and range of the arc-shaped tube's ash-blowing operation on the teardrop-shaped cross-section tubes, improving the cleanliness and efficiency of cleaning deposits on the inner wall of the teardrop-shaped cross-section tubes. Simultaneously, it allows the high-pressure nozzles to be positioned closer to the teardrop-shaped cross-section tubes, further enhancing the removal of deposits and improving the absorption of heat from the flue gas by the teardrop-shaped cross-section tubes, thus reducing the heat generated during flue gas discharge. This, in turn, improves the thermal efficiency of the oil slurry boiler and enhances its safety performance during heat exchange.

[0062] Furthermore, in this embodiment, the upper and lower ends of the reinforcing beam are longitudinally provided with air guide chambers. The front end of one air guide pipe is connected to the upper air guide chamber of the reinforcing beam through a connecting pipe, and the front end of the other air guide pipe is connected to the lower air guide chamber of the reinforcing beam through a bend. A first air supply chamber is provided inside one side of the mounting frame, and a second air supply chamber is provided inside the other side of the mounting frame. The rear end of one air guide pipe is fixedly connected to the first air supply chamber, and the rear end of the other air guide pipe is fixedly connected to the second air supply chamber. A connecting hose 8 is installed at the bottom of both the first and second air supply chambers, and the outer end of the connecting hose is fixedly connected to the connection port at the bottom of the arc-shaped pipe. The upper and lower ends of the rear end of the reinforcing beam are longitudinally provided with air supply pipes connected to the air guide chambers. Positioning arc plates are fixedly attached to the two side walls of the reinforcing beam extending outside the outer shell. The positioning arc plates facilitate the improvement of the connection strength and stability between the reinforcing beam and the outer shell.

[0063] In this embodiment, the adjustment assembly includes a hinged support rod 611 movably hinged to one side of the sliding seat 610 and a limiting block located at the front end of one side of the mounting frame 601. The bottom of the sliding seat 610 is provided with a micro motor 612 for adjusting the deflection of the hinged support rod 611. An isolation cover is provided around the micro motor 612. A buffer pad is provided on the front end face of the sliding seat to improve the buffering effect when the sliding seat stops after impacting the limiting block. A guide hole is vertically opened at the top front end of the hinged support rod, and a support rod 613 at the bottom of the outer end of the arc-shaped tube is movable. The support rod 613 is inserted into the guide hole at the front end of the hinged support rod 611 and extends to the bottom of the hinged support rod 611. The bottom end of the support rod 613 is fixed with an anti-detachment block. At the same time, by starting the micro motor 612, the hinged support rod 611 can be driven to deflect and swing. The deflected and swinging hinged support rod 611 can drive the suspended end of the arc tube 607 to deflect and adjust, so as to change the angle and range of the arc tube 607 for blowing soot onto the teardrop-shaped cross-section tube 704, thereby improving the cleanliness and efficiency of cleaning the deposits on the inner wall of the teardrop-shaped cross-section tube.

[0064] Another embodiment of the present invention provides a method for using a treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler, comprising the following steps:

[0065] First, the outer casing 2, which contains the processing mechanism and the ash removal mechanism, is installed at the tail gas treatment area of ​​the oil slurry boiler via the connecting seat 1. The servo motor 501, the cooling fan 504, the servo motor 609, the electric push cylinder 606, and the micro motor 612 are electrically connected to the external control equipment via wires. At this time, the fixing frame 701, which contains multiple fan-shaped filter boxes 703, is in a horizontal rotation state inside the outer casing 2. At the same time, under the action of the lower sealing ring 202 and the upper sealing ring 201, the flue gas can be prevented from entering the space between the clamping cylinder and the outer casing 2. This ensures that the outside air does not scatter when it passes through the air circulation area, improving the preheating effect of the air. It also ensures that the flue gas discharged from the oil slurry boiler can pass through the flue gas circulation area.

[0066] After installation, the air supply pipe for supplying air to the air chamber is connected to an external high-temperature, high-pressure air source. The servo motor 501 is started, driving the rotating shaft 7 to rotate. The rotating shaft 7 is then rotated via the fixing bracket 701, which in turn drives all the fan-shaped filter boxes 703, each equipped with a teardrop-shaped cross-section pipe 704, to rotate horizontally inside the outer casing 2. As all the fan-shaped filter boxes 703 with teardrop-shaped cross-section pipes 704 rotate inside the outer casing 2, when the fan-shaped filter boxes 703 rotate into the flue gas flow area, the flue gas from the oil slurry boiler flows from above... The heat is released downwards. When the flue gas passes through the inside of the teardrop-shaped cross-section tube 704, the teardrop-shaped cross-section tube 704 will absorb heat. When the heated teardrop-shaped cross-section tube 704 rotates with the fan-shaped filter box 703 to the air circulation area, the heated teardrop-shaped cross-section tube 704 will transfer the accumulated heat to the air flowing from bottom to top, improve the uniformity of air preheating and the heating rate. Thus, when the treatment mechanism rotates once, it can complete a heat exchange process, improve the exhaust gas treatment effect of the oil slurry boiler, and significantly reduce the deposition quality of ABS particles in the flue gas of the oil slurry boiler.

[0067] When it is necessary to clean the ABS particle deposits inside the teardrop-shaped cross-section tube 704, high-pressure gas is supplied to the air guide cavity of the reinforcing beam 6 through an external high-temperature and high-pressure gas source. The high-temperature and high-pressure gas entering the air guide cavity will be transported into the first air supply cavity and the second air supply cavity through the air guide pipe 603. Then, the high-temperature and high-pressure gas entering the first air supply cavity and the second air supply cavity will be supplied into the arc-shaped tube 607 through the connecting hose 8. The high-temperature gas entering the arc-shaped tube 607 will be sprayed into the teardrop-shaped cross-section tube 704 entering the air circulation area through a high-pressure nozzle, so as to blow away the ammonium bisulfate and other fly ash deposited on the inner wall surface of the teardrop-shaped cross-section tube 704.

[0068] While the arc-shaped tube 607 blows away the fly ash deposited on the inner wall of the teardrop-shaped cross-section tube 704, the servo motor 609 is activated to drive the lead screw 602 to rotate. The rotating lead screw 602 drives the moving seat 604 to move forward within the mounting frame 601. The moving seat 604, in turn, drives the arc-shaped tube 607 forward. Under the action of the support rod 608 and the hinged support rod 611, the sliding seat 610 can be pushed to slide forward on the outer wall of the mounting frame 601, thus providing stable support for the moving arc-shaped tube 607. Furthermore, the servo motor 609 is controlled to drive the lead screw 602 to rotate in both directions. The movable seat 604, carrying the arc-shaped tube 607, can perform back-and-forth blowing operations on the horizontally rotating teardrop-shaped cross-section tube 704, facilitating full-width cleaning of the teardrop-shaped cross-section tube 704 installed on the entire sector-shaped filter box 703. Simultaneously, by activating the micro motor 612, the hinged support rod 611 can be driven to deflect and swing. The deflected and swinging hinged support rod 611 can drive the suspended end of the arc-shaped tube 607 to deflect and adjust, making it easy to change the angle and range of the arc-shaped tube 607 blowing operations on the teardrop-shaped cross-section tube 704, thereby improving the cleanliness and efficiency of cleaning the deposits on the inner wall of the teardrop-shaped cross-section tube 704.

[0069] Furthermore, to prevent overheating inside the support tube 5, two sets of cooling fans 504 are activated to facilitate the exchange of hot air inside the support tube 5, preventing the servo motor 501 from overheating and affecting its performance. When the rotating shaft 7 drives the fixing frame 701 to rotate horizontally, the slope platform 506 and brush strip 507 set on the top of the support tube 5 work together to clean the bottom of the sealing partition 702. At the same time, if it is desired to change the height distance between the high-pressure nozzle at the top of the arc-shaped tube 607 and the bottom of the teardrop-shaped cross-section tube 704, the electric push cylinder 606 is activated. The rotating connection end of the arc-shaped tube 607 is raised, and at the same time, the support rod 608 at the bottom of the suspended end of the arc-shaped tube 607 is also raised synchronously, but it does not detach from the outer end of the hinged support rod 611 and will continue to be limited by the hinged support rod 611. After the arc-shaped tube 607 is raised, it is easier to bring the high-pressure nozzle closer to the teardrop-shaped cross-section tube 704, which is conducive to further improving the blowing effect on the deposits on the inner wall of the teardrop-shaped cross-section tube 704, and to improving the absorption of heat from the flue gas by the teardrop-shaped cross-section tube 704, reducing the heat when the flue gas is discharged, thereby improving the thermal efficiency of the oil slurry boiler.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler, characterized in that: The processing device includes: Connecting seat; a housing installed at the top opening of the connecting seat and a reinforcing plate longitudinally installed on the top of the housing, wherein inclined guide plates are installed on both sides of the reinforcing plate; The lower part of the outer shell is provided with a longitudinal support tube. The front end of the support tube extends through the front end face of the outer shell, and the rear end of the support tube is longitudinally fixed with a reinforcing beam. The rear end of the reinforcing beam extends through the rear end face of the outer shell. The top rear end of the support tube is vertically rotatable with a rotating shaft, and the top end of the rotating shaft is rotatably connected to the bottom surface of the reinforcing plate. A processing mechanism for reducing ABS particle deposition is sleeved on the rotating shaft. A drive assembly for rotating the processing mechanism is provided inside the support tube. A dust removal mechanism for cleaning the processing mechanism is also installed on one side of the reinforcing beam. The processing mechanism includes a fixed frame that is fixedly sleeved on the rotating shaft. Multiple sealing partitions are installed at the bottom of the fixed frame. Multiple fan-shaped filter boxes are installed on the fixed frame between the sealing partitions. Multiple teardrop-shaped cross-section pipes are vertically arranged inside the fan-shaped filter boxes. The bottom of the fan-shaped filter box is also equipped with a positioning sealing plate. The bottom surface of the positioning sealing plate is evenly provided with multiple teardrop-shaped positioning holes. The bottom end of the teardrop-shaped cross-section tube is fixedly inserted into the positioning hole of the positioning sealing plate. The ash removal mechanism includes a mounting frame longitudinally disposed on one side of the reinforcing beam, a lead screw longitudinally rotatably disposed in the middle of the mounting frame, air guide pipes longitudinally disposed on both sides inside the mounting frame, a movable seat slidably disposed in the rear end of the mounting frame, and a mounting groove opened on the top of the movable seat. An electric push cylinder is vertically installed inside the mounting slot. An arc-shaped tube is rotatably installed at the top of the telescopic end of the electric push cylinder. The outer end of the arc-shaped tube is suspended, and both ends of the arc-shaped tube are closed. A support rod is vertically fixed to the bottom of the suspended end of the arc-shaped tube. A servo motor for lead screw drive is provided at the rear end of the mounting frame. A protective shell is fitted on the servo motor. The mounting frame has a sliding seat slidably engaged on one side of its outer wall. An adjustment component for deflecting the arc-shaped tube is mounted on the sliding seat. Multiple high-pressure nozzles with upward-facing nozzles are equidistantly connected to the top of the arc-shaped tube.

2. The treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler according to claim 1, characterized in that: A fixing tube is fixedly sleeved on the rotating shaft. The fixing frame consists of the fixing tube and a disc support fixedly sleeved on the upper and lower ends of the fixing tube. Multiple fan-shaped filter boxes are installed between the disc support. The inner end of the sealing partition is also fixedly connected to the outer wall of the fixing tube.

3. The treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler according to claim 1, characterized in that: The drive assembly includes a servo motor located at the rear end of the support tube, a heat insulation plate installed on the inner wall of the support tube, and a transverse partition located in the middle of the support tube, wherein the bottom end of the rotating shaft is coaxially fixed to the drive shaft of the servo motor.

4. The treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler according to claim 3, characterized in that: Ventilation openings are provided at the top and bottom of both sides of the diaphragm, and cooling fans are installed inside the ventilation openings. A pair of cooling fans on one side of the diaphragm are used for air supply, and a pair of cooling fans on the other side of the diaphragm are used for air exhaust. The middle of the front and rear ends of the diaphragm is provided with longitudinal partitions for flow isolation.

5. The treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler according to claim 3, characterized in that: The inner wall of the heat insulation plate is provided with multiple longitudinal guide strips, and the inner end of the support tube is arc-shaped. The support tube is provided with a longitudinal slope platform on the top surface inside the outer shell, and multiple vertical brush strips are provided at equal intervals on the top of the slope platform.

6. The treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler according to claim 1, characterized in that: The adjustment assembly includes a hinged support rod that is movably hinged to one side of the sliding seat and a limiting block located at the front end of one side of the mounting frame. The bottom of the sliding seat is provided with a micro motor for adjusting the deflection of the hinged support rod.

7. The treatment device for reducing ABS particle deposition in flue gas from an oil slurry boiler according to claim 1, characterized in that: An upper sealing ring is fixedly provided on the upper inner wall of the outer shell, and the inner end of the upper sealing ring is sealed and overlapped on the top of the fixing frame; a lower sealing ring is fixedly provided on the lower inner wall of the outer shell, and the inner end of the lower sealing ring is in close contact with the bottom of the fixing frame; a clamping cylinder for fastening and fixing multiple fan-shaped filter boxes is installed on the outer wall of the fixing frame.

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