A dust removal system for an oil extraction furnace

Abstract

This utility model discloses a dust removal system for an oil-removing furnace, relating to the field of dust removal. The system includes an oil-removing furnace body, an economizer, a coolant, a settling chamber with multiple baffles inside, through which the flue gas passes in an S-shape, a bag filter with horizontally arranged, downward-sloping partitions from left to right, a calcium powder spraying device fixedly connected to the air inlet of the bag filter, and the partitions dividing the bag filter into upper and lower air ducts. The flue gas enters the bag filter and sequentially passes through the lower duct, filter bags, and upper duct before exiting the bag filter. Multiple reverse-blowing chambers are horizontally arranged side-by-side at the upper end of the bag filter, with the outlets of the reverse-blowing chambers aligned with the upper ends of the filter bags. The outlets of the reverse-blowing chambers open sequentially in a cyclical manner. A shaftless screw conveyor is fixedly connected to the bottom of the cone-shaped part of the bag filter.

Description

Technical Field

[0001] This utility model relates to the field of dust removal, specifically to a dust removal system for an oil removal furnace. Background Technology

[0002] The flue gas produced during the incineration of petrochemical waste catalysts contains volatile oils such as heavy oil, residual oil, wax oil, and light oil, as well as low-ignition-point substances such as ferrous sulfide and sulfur. These substances easily adhere to the filter bags and are not easy to remove. After accumulating inside the bag filter, they are highly susceptible to spontaneous combustion. After the temperature drops, they accumulate at the bottom of the bag filter and easily form mud-like lumps, which can block the bottom of the bag filter cone and the screw conveyor, causing production stoppages and resulting in significant losses and reduced work efficiency. Utility Model Content

[0003] To solve the above-mentioned technical problems, or at least partially solve them, this utility model provides a dust removal system for an oil removal furnace. This invention utilizes a dedicated economizer for cooling, a settling chamber for settling, a baffle plate, and a bag filter that performs sequential backflushing. Calcium powder is sprayed into the bag filter, and a large-diameter shaftless screw conveyor effectively reduces the probability of spontaneous combustion of the bag filter and prevents blockage at the bottom of the bag filter and the screw conveyor.

[0004] This utility model provides a dust removal system for an oil-removing furnace, including an oil-removing furnace body, an economizer, a seamless flue pipe fixedly connected inside the economizer, a coolant disposed between the outside of the seamless flue pipe and the economizer, a settling chamber containing multiple baffles, each baffle having a gap between itself and the opposite wall, the flue dust passing through the settling chamber in an S-shape, and a bag filter containing horizontally arranged partitions sloping downwards from left to right, the inlet of the bag filter being fixedly connected to a calcium powder spraying device, the partitions dividing the bag filter into upper and lower air ducts, the flue dust entering the bag filter passing through the upper and lower air ducts sequentially. The dust leaves the baghouse dust collector via the lower duct, filter bags, and upper duct. After leaving the oil removal furnace body, the dust passes through the seamless flue, settling chamber, and baghouse dust collector in sequence. Multiple reverse-blowing chambers are horizontally arranged side by side at the upper end of the baghouse dust collector. The air outlets of the reverse-blowing chambers are aligned with the upper end of the filter bags. The air outlets of the reverse-blowing chambers open sequentially in a cyclical manner. A shaftless screw conveyor is fixedly connected to the bottom of the cone of the baghouse dust collector. The shaftless screw conveyor is equipped with a detachable top cover and shaftless conveying blades. The inlet and outlet of the shaftless screw conveyor are both 400*400mm.

[0005] Optionally, a coolant pipeline is fixedly connected to the outer wall of the economizer.

[0006] Optionally, the conveying blade is a thick-walled steel strip.

[0007] Optionally, a sealing door is provided on the side wall of the settling chamber. The sealing door includes a door frame and a door panel. The door frame has a concave cross-section, and the door panel has a convex cross-section. Felt is provided in the groove of the door frame. The central convex part of the door panel is completely aligned with the central groove of the door frame, and the central convex part of the door panel is tightly fitted with the felt.

[0008] Optionally, a lifting valve is fixedly connected to the upper end of the backflush chamber. The lifting end of the lifting valve extends through the upper end of the backflush chamber into the interior of the backflush chamber, and a sealing plate is hinged to the lifting end. A slot is provided at the lower end of the backflush chamber, and the sealing plate slides and fits into the slot to replace the inner wall of the slotted part of the backflush chamber. An opening is left at the lower end of the slot, and the opening is the air outlet of the backflush chamber.

[0009] Optionally, the end of the sealing plate away from the lifting valve's lifting end is an arc surface, and the end of the sealing plate near the lifting valve's lifting end is a horizontally inwardly inclined surface.

[0010] Optionally, it also includes a jetting system installed on one side of the upper end of the backflush chamber. The jetting system includes an electromagnetic pulse valve, one end of which is fixedly connected to a steam drum, and the other end of which is fixedly connected to a connecting pipe. The connecting pipe extends through the upper end of the backflush chamber into the backflush chamber. The connecting pipe located in the backflush chamber is laterally fixedly connected to a backflush pipe. The backflush pipe extends through the side wall of the backflush chamber into each backflush chamber. Each backflush pipe in each backflush chamber is provided with an air nozzle, and the air nozzle corresponds one-to-one with the air outlet of the backflush chamber.

[0011] Optionally, the exhaust port of the bag filter is fixedly connected to an induced draft fan, and the exhaust port of the induced draft fan is fixedly connected to a flue gas desulfurization system.

[0012] Optionally, the filter bags of the bag filter are ultra-low emission filter bags.

[0013] Optionally, a first thermocouple is installed at the flue gas inlet of the bag filter, and a second thermocouple is installed on the cone of the bag filter. The first thermocouple and the second thermocouple are electrically connected to a multimeter.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages: the flue gas is cooled and initially settled by the setting of cooling liquid in the economizer cooling chamber, further settled in the settling chamber, and then some of the dust is naturally settled by setting baffles and the bag filter dust collector is circulated and back-blown to effectively prevent the dust from accumulating in the filter bag. Calcium powder is sprayed into the bag filter dust collector to adsorb the low flash point oil contained in the dust. The large-diameter shaftless screw conveyor prevents the oily substances from clogging, effectively reducing the probability of spontaneous combustion of the bag filter dust collector and avoiding blockage at the bottom of the bag filter dust collector and the screw conveyor. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a dust removal system for an oil removal furnace according to the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the economizer shown;

[0019] Figure 3 for Figure 1 The diagram shows the structure of the settling chamber.

[0020] Figure 4 for Figure 1 The diagram shows the structure of the sealing door.

[0021] Figure 5 for Figure 1 The diagram shows the structure of the lift valve.

[0022] Figure 6 for Figure 1 The diagram shows the structure inside the backflush chamber;

[0023] Figure 7 for Figure 6 The diagram shows a slotted structure.

[0024] Figure 8 for Figure 1 The diagram shows the structure of the jetting system.

[0025] Figure 9 for Figure 1 The diagram shows the structure of a shaftless screw conveyor.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Oil removal furnace body; 2. Economizer; 21. Coolant; 22. Seamless flue; 23. Coolant piping network; 3. Settling chamber; 31. Baffle plate; 32. Flue inlet pipe; 33. Flue outlet pipe; 34. Sealing door; 341. Door frame; 342. Door panel; 3411. Felt; 4. Calcium powder spraying device; 5. Baghouse dust collector; 51. Air inlet; 52. Air outlet; 53. Partition plate; 54. Backflush chamber; 541. Grooving; 55. Lifting 551. Lifting valve; 552. Cylinder; 553. Extension rod; 554. Support base; 555. Sealing ring; 556. Dust cover; 557. Tensioning sleeve; 558. Sealing plate; 59. Pulse jet system; 50. Steam drum; 51. Electromagnetic pulse valve; 52. Backflush pipe; 53. Connecting pipe; 60. Shaftless screw conveyor; 61. Inlet; 62. Outlet; 63. Segmentable detachable top cover; 64. Shaftless conveyor blades; 7. Exhaust fan. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of this utility model can be combined with each other.

[0029] The following description sets forth many specific details to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments described in the specification are only some embodiments of the present invention, and not all embodiments.

[0030] Combination Figures 1 to 9As shown, the dust removal system for an oil-removing furnace provided in this embodiment includes an oil-removing furnace body 1, an economizer 2, a seamless flue pipe 22 fixedly connected inside the economizer 2, a coolant 21 provided between the outside of the seamless flue pipe 22 and the economizer 2, a settling chamber 3 containing multiple baffles 31, each baffle 31 having a gap with the opposite wall, allowing dust to pass through the settling chamber 3 in an S-shape, and a bag filter 5 containing a horizontally arranged partition plate 53 inclined downwards from left to right. A calcium powder spraying device 4 is fixedly connected to the air inlet of the bag filter 5. The partition plate 53 divides the bag filter 5 into upper and lower air ducts, allowing dust to enter the bag filter 5 according to its orientation. After passing through the lower air duct, filter bag, and upper air duct, the dust leaves the bag filter 5. After leaving the oil removal furnace body 1, the dust passes through the seamless flue 22, settling chamber 3, and bag filter 5 in sequence. Multiple back-blowing chambers 54 are horizontally arranged in parallel at the upper end of the bag filter 5. The air outlet of the back-blowing chamber 54 is aligned with the upper end of the filter bag. The air outlets of the back-blowing chambers 54 are opened in sequence. The shaftless screw conveyor 6 is fixedly connected to the bottom of the cone of the bag filter 5. The shaftless screw conveyor 6 is equipped with a detachable top cover 63. The shaftless screw conveyor 6 is equipped with shaftless conveying blades 64. The feed inlet and discharge outlet of the shaftless screw conveyor 6 are both 400*400mm.

[0031] Among them, the economizer 2 has a coolant pipeline network 23 fixedly connected to its outer wall to maintain a constant water temperature and ensure the cooling effect. The conveying blades 64 are made of thick-walled steel strips. The exhaust port of the bag filter 5 is fixedly connected to the induced draft fan 7. The exhaust port of the induced draft fan 7 is fixedly connected to the flue gas desulfurization system to prevent the exhaust gas from polluting the atmosphere. The filter bags of the bag filter 5 are ultra-low emission filter bags.

[0032] Therefore, the flue gas is cooled and initially settled by the cooling liquid 21 in the economizer 2, and further settled in the settling chamber 3. Then, the dust is allowed to settle naturally by the baffle 53, and the bag filter 5 is used to back-flush the filter bags in a sequential cycle, which prevents the dust from accumulating in the filter bags. Calcium powder is sprayed into the bag filter 5 to adsorb the low flash point oil contained in the dust. The large-diameter shaftless screw conveyor 6 prevents the oil from clogging, effectively reducing the probability of spontaneous combustion of the bag filter and avoiding blockage at the bottom of the bag filter and the screw conveyor.

[0033] In some embodiments, such as Figure 1 , Figure 3 and Figure 4 As shown, a sealing door 34 is provided on the side wall of the settling chamber 3. The sealing door 34 includes a door frame 341 and a door panel 342. The door frame 341 has a concave cross section, and the door panel 342 has a convex cross section. Felt 3411 is provided in the groove of the door frame 341. The central convexity of the door panel 342 is completely aligned with the central groove of the door frame 341, and the central convexity of the door panel 342 is tightly fitted with the felt 3411.

[0034] Therefore, the door frame 341 has a concave cross-section, the door panel 342 has a convex cross-section, and felt 3411 is installed in the groove of the door frame 341. When the door is closed, the convex part of the door panel 342 is completely aligned with the groove in the door frame 341, and the felt 3411 in the groove is compressed to ensure the door is sealed.

[0035] In some embodiments, such as Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, a lifting valve 55 is fixedly connected to the upper end of the backflush chamber 54. The lifting end of the lifting valve 55 extends through the upper end of the backflush chamber 54 into the interior of the backflush chamber 54, and a sealing plate 557 is hinged to the lifting end. A slot 541 is provided at the lower end of the backflush chamber 54. The sealing plate 557 slides and fits against the slot 541, thereby replacing the inner wall of the slotted part of the backflush chamber 54. An opening is left at the lower end of the slot 541, which is the air outlet of the backflush chamber 54. The end of the sealing plate 557 away from the lifting end of the lifting valve 55 is an arc surface, and the end of the sealing plate 557 near the lifting end of the lifting valve 55 is a horizontally inward inclined surface. The system includes a jetting system 56, which is installed on one side of the upper end of the backflush chamber 54. The jetting system 56 includes an electromagnetic pulse valve 562, one end of which is fixedly connected to a steam drum 561, and the other end of which is fixedly connected to a connecting pipe 564. The connecting pipe 564 extends through the upper end of the backflush chamber 54 and into the backflush chamber 54. The connecting pipe 564 located in the backflush chamber 54 is laterally fixedly connected to a backflush pipe 563. The backflush pipe 563 extends through the side wall of the backflush chamber 54 into each backflush chamber 54. Each backflush pipe 563 in each backflush chamber 54 is provided with an air nozzle, and the air nozzle corresponds one-to-one with the air outlet of the backflush chamber 54.

[0036] Each lifting valve 55 comprises a cylinder 551, an extension rod 552, a support base 553, a sealing ring 554, a dust cover 555, a tensioning sleeve 556, and a sealing plate 557. The extension rod 552 is connected to the central rod of the cylinder 551, and the sealing plate 557 is hinged to the lower part of the extension rod 552. The extension rod 552 is equipped with a dust cover 555, one end of which is fixed to the support base 552, and the other end is fixed to the extension rod 552 by the tensioning sleeve 556. The length of the dust cover 555 is freely extendable, with the shortest length being the remaining length after the cylinder rod is fully retracted and the maximum length being the length after the cylinder rod is fully extended.

[0037] As a result, the lifting valves 55 in each backflush chamber are opened in sequence, causing the sealing plate 557 to flip and rise. During the rise, it will not touch the backflush pipe 563. After the sealing plate 557 rises, it stops fitting against the slot 541. At this time, the electromagnetic pulse valve 562 is opened to make the gas in the steam drum 561 flow into the backflush pipe 563. The gas passes through the air outlet of the backflush pipe 563 and the slot 541 that is no longer closed, and enters the corresponding filter bag for backflush.

[0038] In some embodiments, such as Figure 1 As shown, a first thermocouple 551 is installed at the flue gas inlet of the bag filter 5, and a second thermocouple 552 is installed on the cone of the bag filter 5. A multimeter is electrically connected to the first thermocouple 551 and the second thermocouple 552.

[0039] Therefore, when the temperature of the second thermocouple 552 is higher than that of the first thermocouple 551, the staff needs to take timely measures to prevent the filter bag from spontaneously combusting. As the flue gas enters from the bag filter 5, passes through the cone area, and is finally discharged through the outlet, the temperature gradually decreases from front to back during the flue gas transport process. When the cone temperature is higher than the inlet temperature, it can be determined that there is a smoldering fire inside the cone.

[0040] The following is in conjunction with the appendix Figure 1-9 A specific embodiment of this utility model is described below:

[0041] like Figures 1-9 As shown, the system includes an oil-removing furnace body 1, an economizer 2, a seamless flue pipe 22 fixedly connected inside the economizer 2, a coolant 21 between the outside of the seamless flue pipe 22 and the economizer 2, a settling chamber 3 containing multiple baffles 31, each baffle 31 having a gap with the opposite wall, allowing flue gas to pass through the settling chamber 3 in an S-shape, and a bag filter 5 containing horizontally arranged partitions 53 sloping downwards from left to right. A calcium powder spraying device 4 is fixedly connected to the air inlet of the bag filter 5. The partitions 53 divide the bag filter 5 into upper and lower air ducts. Flue gas entering the bag filter 5 passes sequentially through the lower air duct and the filter bags. After leaving the bag filter 5 via the upper air duct, the flue gas passes through the seamless flue 22, the settling chamber 3, and the bag filter 5 in sequence. Multiple back-blowing chambers 54 are horizontally arranged side by side at the upper end of the bag filter 5. The air outlets of the back-blowing chambers 54 are aligned with the upper end of the filter bags. The air outlets of the back-blowing chambers 54 are opened sequentially in a cyclical manner. The shaftless screw conveyor 6 is fixedly connected to the bottom of the cone of the bag filter 5. The shaftless screw conveyor 6 is equipped with a detachable top cover 63. The shaftless screw conveyor 6 is equipped with shaftless conveying blades 64. The inlet and outlet of the shaftless screw conveyor 6 are both 400*400mm.

[0042] In actual use, the flue gas in the oil removal furnace body 1 is discharged into the economizer 2 through the exhaust pipe. At this time, the flue gas passes through the economizer 2 through the seamless flue pipe 22, which cools the flue gas with the coolant 21 outside the seamless flue pipe 22. At the same time, the economizer 2 is connected to the coolant network 23 to keep the water temperature constant, so that the combustible dust is cooled down quickly and the amount of combustible dust in the flue gas is reduced. After leaving the economizer 2, the flue gas enters the settling chamber 3. The flue gas passes through the settling chamber 3 in an S-shaped path along the baffle 31. Several sealing doors 34 are opened on the side of the settling chamber 3. The dust can be cleaned regularly. The sealing door consists of a door frame 341 and a door panel 342. The door frame 341 has a concave cross section and the door panel 342 has a convex cross section. Felt 3411 is placed in the groove of the door frame 341. When the door is closed, the protrusion in the door panel 342 is fully aligned with the groove in the door frame 341, compressing the felt 3411 inside the groove to ensure a tight seal. After leaving the settling chamber 3, the flue gas enters the bag filter 5. The inlet of the bag filter 5 is connected to a calcium powder spraying device 4. The calcium powder sprayed into the bag filter 5 through the calcium powder spraying system 4 has very small particle size and a large specific surface area, effectively adsorbing low-flash-point oil contained in the flue gas, effectively reducing the probability of spontaneous combustion of low-flash-point oil in the bag filter 5, and preventing damage to the filter bags. The flue gas enters the housing from the inlet and flows downwards through the downdraft. At this time, the cross-sectional area inside the bag filter 5 increases, and some of the dust naturally settles. The remaining dust-laden flue gas is filtered by the filter bags and discharged from the exhaust port 52 through the updraft. During this process, the lifting valves 55 in each back-blowing chamber open and close sequentially. The closed plate 557 is rotated and raised, and will not touch the backflush pipe 563 during the rise. After the rise, the closed plate 557 is no longer attached to the slot 541. At this time, the electromagnetic pulse valve 562 is opened to make the gas in the steam drum 561 flow into the backflush pipe 563. The gas passes through the air outlet of the backflush pipe 563 and the unclosed slot 541 and enters the corresponding filter bag for backflush. The materials generated by backflush and other processes enter the shaftless screw conveyor 6 in the conical bottom of the bag dust collector 5. The inlet and outlet of the shaftless screw conveyor 6 are 400*400mm. The top cover 63 can be disassembled in sections. The conveying blades 64 are made of thick-walled strip steel. This conveyor does not have a central shaft. The material can be conveyed through the gap between the blades and the center hole of the blades. It is suitable for conveying various muddy materials and reduces the blockage of the screw conveyor.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the utility model herein.

Claims

1. A dust removal system for an oil-removing furnace, comprising an oil-removing furnace body (1), characterized in that, Economizer (2), with a seamless smoke pipe (22) fixedly connected inside the economizer (2), and a coolant (21) provided between the outside of the seamless smoke pipe (22) and the economizer (2). Settling chamber (3) is provided with multiple baffles (31), and each baffle (31) has a gap between it and the opposite wall, so that smoke and dust pass through the settling chamber (3) in an S-shape. The bag filter (5) has a horizontally inclined partition plate (53) that slopes downward from left to right. The air inlet of the bag filter (5) is fixedly connected to a calcium powder spraying device (4). The partition plate (53) divides the bag filter (5) into two air ducts, upper and lower. The dust enters the bag filter (5) and passes through the lower air duct, filter bag and upper air duct in sequence before leaving the bag filter (5). After leaving the oil removal furnace body (1), the dust passes through the seamless flue (22), settling chamber (3) and bag filter (5) in sequence. The bag filter (5) has multiple back-blowing chambers (54) arranged horizontally in parallel at the upper end. The air outlets of the back-blowing chambers (54) are aligned with the upper end of the filter bag. The air outlets of the back-blowing chambers (54) are opened sequentially in a cyclical manner. A shaftless screw conveyor (6) is fixedly connected to the bottom of the cone of the bag filter (5). The shaftless screw conveyor (6) is provided with a detachable top cover (63) and shaftless conveying blades (64) are provided inside the shaftless screw conveyor (6).

2. The deoiling furnace dust extraction system of claim 1, wherein, The economizer (2) has a coolant pipeline (23) fixedly connected to its outer wall.

3. The dust removal system for the oil removal furnace according to claim 1, characterized in that, The conveying blade (64) is made of thick-walled strip steel.

4. The dust removal system for the oil removal furnace according to claim 3, characterized in that, A sealing door (34) is provided on the side wall of the settling chamber (3). The sealing door (34) includes a door frame (341) and a door panel (342). The door frame (341) has a concave cross section, and the door panel (342) has a convex cross section. Felt (3411) is provided in the groove of the door frame (341). The central convexity of the door panel (342) is completely aligned with the central groove of the door frame (341), and the central convexity of the door panel (342) is tightly fitted with the felt (3411).

5. The dust removal system for the oil removal furnace according to claim 3, characterized in that, The upper end of the backflush chamber (54) is fixedly connected to a lifting valve (55). The lifting end of the lifting valve (55) extends through the upper end of the backflush chamber (54) into the interior of the backflush chamber (54), and the lifting end is hinged to a sealing plate (557). The lower end of the backflush chamber (54) is provided with a slot (541). The sealing plate (557) slides and fits into the slot (541) to replace the inner wall of the slotted part of the backflush chamber (54). The lower end of the slot (541) has an opening, which is the air outlet of the backflush chamber (54).

6. The dust removal system for the oil removal furnace according to claim 5, characterized in that, The end of the sealing plate (557) away from the lifting end of the lifting valve (55) is an arc surface, and the end of the sealing plate (557) near the lifting end of the lifting valve (55) is an inclined surface that slopes inward laterally.

7. The dust removal system for the oil removal furnace according to claim 5, characterized in that, It also includes a jetting system (56) installed on one side of the upper end of the backflush chamber (54), the jetting system (56) comprising: An electromagnetic pulse valve (562) is fixedly connected to a steam drum (561) at one end and to a connecting pipe (564) at the other end. The connecting pipe (564) extends through the upper end of the backflush chamber (54) into the backflush chamber (54). The connecting pipe (564) located in the backflush chamber (54) is fixedly connected laterally to a backflush pipe (563). The backflush pipe (563) extends through the side wall of the backflush chamber (54) into each backflush chamber (54). Each backflush pipe (563) in each backflush chamber (54) is provided with an air nozzle, and the air nozzle corresponds one-to-one with the air outlet of the backflush chamber (54).

8. The dust removal system for the oil removal furnace according to claim 1, characterized in that, The exhaust port of the bag filter (5) is fixedly connected to an induced draft fan (7), and the exhaust port of the induced draft fan (7) is fixedly connected to a flue gas desulfurization system.

9. The dust removal system for the oil removal furnace according to claim 1, characterized in that, The filter bags of the bag filter (5) are ultra-low emission filter bags.

10. The dust removal system for the oil removal furnace according to claim 1, characterized in that, The inlet of the bag filter (5) is equipped with a first thermocouple (551), and the cone of the bag filter (5) is equipped with a second thermocouple (552). The first thermocouple (551) and the second thermocouple (552) are electrically connected to a multimeter.

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