Oil fume purification device and integrated cooker thereof

Abstract

The application discloses an oil fume purification device and integrated cooker, which comprises a smoke baffle for guiding the smoke cavity of the integrated cooker body, an oil collecting box, a movable oil fume separating box and a fixed oil fume separating box are sequentially arranged above the smoke baffle, a plurality of oil separating funnels are arranged in communication between the top wall of the oil collecting box and the bottom end of the inner wall of the movable oil fume separating box, an oil fume separating pipe is arranged in the fixed oil fume separating box and located at the air outlet side of the air guiding accelerating cylinder, a rotating rod is rotatably arranged at the air inlet side of the oil fume separating pipe, an oil fume separating block is arranged at the outer end of the rotating rod, windward pushing grooves are symmetrically arranged on the outer side wall of the oil fume separating block, an oil-repellent layer is coated on the outer surface of the oil fume separating block, the collected oil in the oil collecting box is discharged into the oil collecting box of the integrated cooker body through the oil conveying pipe, and the preliminary oil fume separation effect is achieved; meanwhile, the reciprocating movement of the movable oil fume separating box above the smoke baffle makes the oil fume discharged from the oil separating net mouth evenly and scattered, the uniform purification of the oil fume in the oil fume purification box of the smoke guiding pipe is facilitated, and the purification efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of integrated stove fume purification technology, specifically relating to fume purification devices and integrated stoves. Background Technology

[0002] Integrated cooktops utilize aerodynamic principles for fume extraction, employing a side-suction and downward-exhaust method. Inside the cooktop, a high-speed motor rapidly expels internal air, creating a low-negative-pressure area. Outside the fume extraction port, in the triangular area formed by the baffle and the countertop, there is atmospheric positive pressure. Similar to how a tornado forms, the positive and negative pressures exert tremendous force, pushing the fumes towards the negative pressure and drawing them all in before expelling them.

[0003] For example, Chinese patent CN109708173A discloses an integrated stove with an oil fume purification device, including a housing. A burner and support plate are mounted on the top surface of the housing, and a smoke guide plate is mounted on the top surface of the support plate. An oil fume purification box is located inside the housing. A smoke guide pipe is mounted above the oil fume purification box, and a fan is mounted on the smoke guide pipe. A smoke guide cavity is located at the top of the smoke guide pipe, and an exhaust mechanism is located at the bottom of the smoke guide pipe, located inside the oil fume purification box. An exhaust pipe is horizontally mounted on the top of the oil fume purification box, which is filled with purified water. The left and right sides of the oil fume purification box... The unit is equipped with an inlet pipe and an outlet pipe on each side. A cleaning mechanism is located at the bottom of the fume purification box, and a smoke guide hood is installed at the top. A decomposition liquid storage tank is located on the side of the fume purification box. The cleaning mechanism cleans the bottom of the fume purification box, facilitating thorough cleaning, improving the fume purification efficiency of the integrated stove, and enabling recycling. The smoke guide hood not only guides the purified gas but also prevents purified water from splashing into the exhaust pipe during fume purification. The decomposition liquid storage tank stores the decomposition liquid, enhancing the purification effect of the purified water on the fumes.

[0004] However, the above solutions have the following shortcomings: The existing patent documents describe how the fumes generated by the integrated stove are sequentially discharged into the fume purification box through the smoke guide chamber and smoke guide pipe for purification. Since the burners are usually arranged symmetrically, in actual use, the fumes generated by cooking above the burners tend to concentrate on both sides of the baffle plate on the smoke guide chamber or smoke guide pipe. This makes it easy for grease to accumulate on the outer surface of the baffle plate, requiring frequent cleaning. Furthermore, the fumes drawn in from both sides of the smoke guide chamber tend to accumulate on the inner wall of the smoke guide pipe as they flow into the fume purification box, making cleaning difficult. Additionally, the fumes drawn into the fume purification box tend to flow to the left and right sides, preventing even contact between the fumes and the purification side of the fume purification box, thus reducing the purification effect. How to ensure even distribution of fumes before they pass the baffle plate while simultaneously performing preliminary fume separation is a problem that needs to be solved.

[0005] Therefore, we propose an oil fume purification device and its integrated stove to solve the problems mentioned in the background technology. Summary of the Invention

[0006] The purpose of this invention is to provide an oil fume purification device and its integrated stove to solve the problems existing in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An oil fume purification device includes a smoke baffle for the smoke guiding cavity of an integrated stove body. Above the smoke baffle, an oil collection box, a movable oil fume separation box, and a fixed oil fume separation box are sequentially arranged. A plurality of oil-distributing funnels are connected between the top wall of the oil collection box and the bottom of the inner wall of the movable oil fume separation box. Oil-distributing mesh openings are symmetrically arranged on the side walls of the oil-distributing funnels. Corrugated telescopic air guide pipes are connected between the two sides of the upper surface of the movable oil fume separation box and the two side walls of the fixed oil fume separation box. An air collection hood is connected to the middle of the upper surface of the fixed oil fume separation box. A connecting threaded hole block is provided on the side of the movable oil fume separation box, and a reciprocating screw threaded through the connecting threaded hole block. The free end of the reciprocating screw thread is connected to the output shaft end of a drive motor.

[0009] The fixed oil fume separation box has air guiding and accelerating cylinders on both sides near the air inlet. An oil fume separation pipe is located on the air outlet side of the air guiding and accelerating cylinder inside the fixed oil fume separation box. A rotating rod is rotatably installed on the air inlet side of the oil fume separation pipe. An oil fume separation block is installed at the outer end of the rotating rod. Windward pushing grooves are symmetrically arranged on the outer wall of the oil fume separation block. An oil-repellent layer is coated on the outer surface of the oil fume separation block. An oil guiding pipe connected to the oil collection box is installed at the bottom of the inner wall of the fixed oil fume separation box.

[0010] Preferably, the bottom end of the oil collection box is connected to an oil supply pipe that communicates with the oil box part of the integrated stove body, and the inside of the movable oil fume separation box is provided with a heat storage column arranged horizontally and longitudinally above the oil separation funnel, and an oil-draining sleeve is fitted on the outside of the heat storage column.

[0011] Preferably, the fixed oil fume separation box has connecting air pipes on both sides of its side walls, and the connecting air pipes are connected to the corrugated telescopic air guide pipes. The movable oil fume separation box has a sliding frame slidably mounted on its side, and the top of the sliding frame is fixedly mounted on the gas collection hood. The output shaft of the drive motor drives the reciprocating screw to rotate in the connecting screw hole block, thereby driving the movable oil fume separation box to perform horizontal reciprocating motion on the smoke baffle plate.

[0012] Preferably, the air-guiding and accelerating cylinder is composed of a contraction section and an expansion section on the inlet and outlet sides, respectively, and a diversion cone is provided between adjacent air-guiding and accelerating cylinders, with the top of the diversion cone facing the exhaust port of the air-collecting hood.

[0013] Preferably, the side wall of the oil fume separation pipe is provided with a movable groove, and an inner push spring rod is inserted into the movable groove. An oil scraping ring is arranged in a ring on the inner wall of the oil fume separation pipe. The free end of the inner push spring rod is fixedly mounted on the oil scraping ring. A bearing ring is provided inside the oil scraping ring. The rotating rod passes through the inner ring of the bearing ring with an interference fit. An oil shield is sleeved on the rotating rod outside the bearing part of the bearing ring. A cleaning brush plate is provided on the outer surface of the oil shield and is in contact with the inner wall of the oil scraping ring. The air guide acceleration cylinder discharges oil fumes and drives the oil fume separation block, rotating rod and cleaning brush plate to rotate in sequence through the windward pushing groove. The oil scraping ring overcomes the inner push spring rod and performs grease scraping and sliding motion on the inner wall of the oil fume separation pipe.

[0014] Preferably, the oil fume separation block is provided with perforations, and ventilation holes are provided between the windward pushing groove and the perforations. Furthermore, oil guide ribs are provided on the front and rear end faces of the oil fume separation block at the outer edges of both ends of the perforations.

[0015] An integrated stove includes the aforementioned fume purification device, wherein the fume collection hood is detachably and fixedly installed on the side wall of the smoke guiding cavity of the integrated stove body, and the housing of the drive motor is fixedly installed on the side wall of the smoke guiding cavity of the integrated stove body.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: After preliminary purification, the oil fumes passing through the oil fume separation pipe are discharged into the movable oil fume separation box via the connecting air pipe and the corrugated telescopic air guide pipe. The heat storage column inside the movable oil fume separation box not only intercepts the passing oil fume droplets, but also, under the action of the oleophobic sleeve on its outer surface, introduces the intercepted oil droplets to the end of the oil separating funnel. The oil fume gas is discharged through the oil separating mesh and some oil droplets are intercepted. The oil droplets intercepted by the oil separating mesh will enter the oil collection box through the bottom opening of the oil separating funnel for collection. The oil collected in the oil collection box is discharged into the oil box of the integrated stove body through the oil delivery pipe, which plays a preliminary role in oil fume separation. At the same time, the reciprocating motion of the movable oil fume separation box above the smoke baffle plate makes the oil fume discharged from the oil separating mesh evenly distributed, which facilitates the uniform purification of the oil fume purification box inside the smoke guide pipe and improves the purification efficiency. Attached Figure Description

[0017] Figure 1 This is a partial cross-sectional view of the overall structure of the present invention;

[0018] Figure 2 for Figure 1 A partial schematic diagram of the gas collection hood area;

[0019] Figure 3 for Figure 2 A partial schematic diagram of the right side area of ​​the fixed oil fume separator box;

[0020] Figure 4 for Figure 2 A schematic diagram showing the change in the horizontal position of the left-side oil scraper ring;

[0021] Figure 5 for Figure 2 A top-view diagram of the area where the movable and fixed oil fume separation boxes work together;

[0022] Figure 6 for Figure 5 A schematic diagram of the corrugated telescopic air duct structure during the movement of the mobile oil fume separator box.

[0023] Figure 7 This is a partial cross-sectional view of the oil fume separation block of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the movable oil fume separation box, fixed oil fume separation box, oil collection box, corrugated telescopic air guide pipe and reciprocating screw mating area of ​​the present invention.

[0025] Figure 9 This is a schematic diagram of the assembly structure of the oil fume separation block, rotating rod, and cleaning brush plate of the present invention;

[0026] Figure 10 for Figure 8 A partial structural diagram of the cross-sectional view of the oil collection box and the movable oil fume separation box.

[0027] In the diagram: 1. Smoke baffle; 2. Oil collection box; 3. Movable oil fume separation box; 4. Fixed oil fume separation box; 5. Oil separating funnel; 6. Oil separating mesh opening; 7. Corrugated telescopic air guide pipe; 8. Air collection hood; 9. Connecting threaded block; 10. Reciprocating screw; 11. Drive motor; 12. Air guide acceleration cylinder; 13. Oil fume separation pipe; 14. Rotating rod; 15. Oil fume separation block; 16. Windward pushing groove; 7. Oil-repellent layer; 18. Oil guide pipe; 19. Oil delivery pipe; 20. Heat storage column; 21. Oil-repellent sleeve; 22. Connecting gas pipe; 23. Slide; 24. Diverting cone; 25. Movable groove; 26. Internal push spring rod bracket; 27. Oil scraper ring; 28. Bearing ring bracket; 29. ​​Oil shield; 30. Cleaning brush plate; 31. Perforation; 32. Vent hole; 33. Oil guide ribs; 101. Integrated stove body. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] Please see Figures 1-10 The present invention provides a technical solution:

[0030] Example 1:

[0031] An oil fume purification device includes a smoke baffle 1 for the smoke guiding cavity of an integrated stove body 101. The smoke baffle 1 has smoke guiding holes, which are pre-installed accessories on existing integrated stove bodies 101 and will not be described in detail. Above the smoke baffle 1, an oil collection box 2, a movable oil fume separation box 3, and a fixed oil fume separation box 4 are arranged sequentially. Eight oil-distributing funnels 5 are arranged between the top wall of the oil collection box 2 and the bottom of the inner wall of the movable oil fume separation box 3. The number of oil-distributing funnels 5 is adjusted according to the size of the oil collection box 2. Symmetrical oil-distributing mesh openings 6 are provided on the side walls of the oil-distributing funnels 5. The oil-distributing mesh openings 6 can pass through the oil fume gas, and the outer surface of the oil-distributing mesh openings 6 is coated with a 1 mm thick Teflon coating, giving the oil-distributing mesh openings 6 oil-repellent properties. Simultaneously, the oil-distributing mesh openings 6 can trap some oil droplets flowing through the oil fume. The movable oil fume separation box 3... A corrugated telescopic air guide pipe 7 is connected between the two sides of the end face and the two side walls of the fixed oil fume separation box 4. The corrugated telescopic air guide pipe 7 has a contraction performance, and the extension and contraction of the corrugated telescopic air guide pipe 7 is the same as the movement displacement of the movable oil fume separation box 3 above the smoke baffle 1. A gas collection hood 8 is connected to the middle of the upper end face of the fixed oil fume separation box 4. The gas collection hood 8 can collect and process the oil fumes drawn into the smoke guide cavity of the integrated stove body 101. A connecting thread hole block 9 is provided on the side of the movable oil fume separation box 3. A vertical thread hole is preset on the connecting thread hole block 9. A reciprocating screw 10 is inserted through the connecting thread hole block 9. The free end of the reciprocating screw 10 is connected to the output shaft end of the drive motor 11. The drive motor 11 is a rotary servo motor, and the output shaft end of the drive motor 11 can control the forward and reverse rotation of the reciprocating screw 10.

[0032] Inside the fixed oil fume separation box 4, air-guiding and accelerating cylinders 12 are provided on both sides near the air inlet. The air-guiding and accelerating cylinders 12 can increase the flow rate of the flue gas. Inside the fixed oil fume separation box 4, an oil fume separation pipe 13 is provided on the air outlet side of the air-guiding and accelerating cylinder 12. A rotating rod 14 is provided on the air inlet side of the oil fume separation pipe 13, rotating horizontally. An oil fume separation block 15 is provided at the outer end of the rotating rod 14. The outer wall of the oil fume separation block 15 is symmetrically provided with windward pushing grooves 16. The windward pushing grooves 16 will drive the oil fume separation block 15 to rotate when pushed by the oil fume drawn in from the outside. The outer surface of the oil fume separation block 15 is coated with an oleophobic layer 17, which is composed of a 1 mm thick Teflon coating. Teflon is a commonly used oleophobic product in the prior art and will not be described in detail. An oil guide pipe 18 is provided at the bottom of the inner wall of the fixed oil fume separation box 4, which is connected to the oil collection box 2. The oil guide pipe 18 is used to collect the oil droplets trapped inside the fixed oil fume separation box 4.

[0033] Example 2:

[0034] Based on Embodiment 1, the bottom end of the oil collection box 2 is connected to an oil supply pipe 19 that is connected to the oil box part of the integrated stove body 101. The oil supply pipe 19 is made of soft PVC pipe, so that when the movable oil fume separation box 3 moves the oil collection box 2, the waste oil on the oil outlet side of the oil supply pipe 19 is discharged normally. Inside the movable oil fume separation box 3, a heat storage column 20 is arranged horizontally and longitudinally above the oil separating funnel 5. The heat storage column 20 is made of ceramic material and has good heat storage capacity. The heat storage column 20 can absorb the heat in the flue gas, thereby preventing oil droplets in the fume from accumulating on the heat storage column 20. An oil-repellent sleeve 21 is fitted on the outside of the heat storage column 20. The oil-repellent sleeve 21 is also made of 1 mm thick Teflon coating, which further improves the cleanliness of the outer surface of the heat storage column 20.

[0035] Example 3:

[0036] Further explanation based on Embodiment 1: Connecting air pipes 22 are connected to both side walls of the fixed oil fume separation box 4. These connecting air pipes 22 are connected to the corrugated telescopic air guide pipe 7. The connecting air pipes 22 fix the air inlet side of the corrugated telescopic air guide pipe 7. A sliding bracket 23 is slidably fitted onto the side of the movable oil fume separation box 3. Figure 8As shown, the lower part of the side wall of the slide 23 is provided with a slide groove. The left side of the movable oil fume separation box 3 is slidably connected to the slide groove. The slide 23 can limit the movement direction of the movable oil fume separation box 3. The top of the slide 23 is fixedly mounted on the gas collection hood 8. The output shaft of the drive motor 11 drives the reciprocating screw 10 to rotate in cooperation with the connecting screw hole block 9, thereby causing the movable oil fume separation box 3 to reciprocate horizontally and longitudinally along the slide 23, driving the movable oil fume separation box 3 to move on the smoke baffle 1. The gas guide accelerator cylinder 12 is composed of a contraction section and an expansion section on the inlet and outlet sides, respectively. The contraction section and expansion section of the gas guide accelerator cylinder 12 constitute the Laval tube structure in existing mature products, which facilitates the increase of the gas flow velocity through the gas guide accelerator cylinder 12. A diversion cone 24 is provided between adjacent gas guide accelerator cylinders 12, and the top of the diversion cone 24 faces the exhaust port of the gas collection hood 8. The diversion cone 24 can guide the oil fumes discharged into the fixed oil fume separation box 4 by the gas collection hood 8 to flow to both sides.

[0037] Example 4:

[0038] Based on Embodiment 1, a movable groove 25 is provided on the side wall of the oil fume separation pipe 13. An internal push spring rod 26 is inserted into the movable groove 25. An oil scraper ring 27 is arranged in a ring on the inner wall of the oil fume separation pipe 13. The free end of the internal push spring rod 26 is fixedly mounted on the oil scraper ring 27. The internal push spring rod 26 can generate a spring thrust on the oil scraper ring 27 towards the bottom of the inner wall of the movable groove 25. The direction of the spring thrust generated by the internal push spring rod 26 is opposite to the direction of the oil fume gas discharged from the air guide acceleration cylinder 12. The oil scraper ring 27 contains a bearing ring frame 28, which consists of a bearing ring and connecting rods at both ends. A rotating rod 14 is interference-fitted through the inner ring of the bearing ring frame 28. An oil shield 29 is fitted onto the rotating rod 14 outside the bearing portion of the bearing ring frame 28. The oil shield 29 facilitates oil protection for the bearing ring on the bearing ring frame 28. A cleaning brush 30, which contacts and connects to the inner wall of the oil scraper ring 27, is provided on the outer surface of the oil shield 29. The cleaning brush 30 rotates with the rotating rod 14. The inner surface of the scraper ring 27 is cleaned. Oil fumes discharged from the air accelerator cylinder 12 are driven sequentially by the windward pushing groove 16, which in turn rotates the oil fume separation block 15, the rotating rod 14, and the cleaning brush plate 30. The shape of the windward pushing groove 16 is designed to be at a 10° angle to the direction of the gas discharged from the air accelerator cylinder 12. The size of this angle is adjusted according to the size of the oil fume separation block 15, allowing the oil and gas passing through it to drive its rotation. Furthermore, the scraper ring 27 overcomes the internal push spring rod 26 in the oil fume separation process. Grease is scraped and slid along the inner wall of pipe 13; perforation 31 is provided on oil fume separation block 15, and ventilation hole 32 is provided between windward pushing groove 16 and perforation 31. Air discharged into windward pushing groove 16 will pass through ventilation hole 32 and both ends of perforation 31 in sequence and be discharged, which further increases the amount of gas discharged into oil fume gas flowing through oil fume separation block 15. Oil guide ribs 33 are provided on the front and rear end faces of oil fume separation block 15 at both ends of perforation 31. Oil guide ribs 33 facilitate the discharge and dripping of oil droplets accumulated in perforation 31.

[0039] The working principle is as follows: During the oil fume purification process of the integrated stove, the power supply terminal of the drive motor 11 is connected to the external power supply of the integrated stove body 101. The control button on the integrated stove body 101 controls the opening and closing of the drive motor 11, and sets the forward and reverse rotation time T and rotation speed V of the drive motor 11. The output shaft of the drive motor 11 drives the reciprocating screw 10 to rotate in both forward and reverse directions on the connecting screw hole block 9. Under the constraint of the slide 23, the moving oil fume separation box 3 performs horizontal and vertical reciprocating motion above the smoke baffle 1. After the internal fan of the integrated stove body 101 is started, it will move above the smoke baffle 1. The suction force generates oil fumes from cooking on the outside stove, which enter the gas collection hood 8 from one side of the smoke guide chamber. The diversion cone 24 located in the fixed oil fume separation box 4 guides the oil fume gas discharged from the gas collection hood 8 to the air guide acceleration cylinders 12 on both sides. The oil fume gas flowing through the air guide acceleration cylinder 12 is accelerated and quickly passes through the oil fume separation block 15 and through the oil fume separation pipe 13. The oil fume passing through the oil fume separation block 15 will pass through the windward push groove 16, the vent 32 and the perforation 31 in sequence, and drive the rotating rod 14 to rotate. The rotation of the rotating rod 14 will drive the cleaning brush 30 to rotate and clean the inner ring surface of the oil scraping ring 27. Simultaneously, the oily gas discharged into the oil fume separation block 15 overcomes the reverse spring force of the inner push spring rod 26, causing the scraper ring 27 to move to the left on the inner wall of the oil fume separation pipe 13. After preliminary purification, the oily gas passing through the oil fume separation pipe 13 is discharged sequentially through the connecting air pipe 22 and the corrugated telescopic air guide pipe 7 into the movable oil fume separation box 3. The heat storage column 20 inside the movable oil fume separation box 3 intercepts the passing oil droplets, and under the action of the oleophobic sleeve 21 on its outer surface, it can also guide the intercepted oil droplets to the end of the oil separating funnel 5. The oily gas is discharged through the oil separating mesh opening 6 and some oil droplets are intercepted and separated by the oil separating mesh. The oil droplets intercepted by the opening 6 will enter the oil collection box 2 through the bottom opening of the oil separating funnel 5 for collection. The oil collected in the oil collection box 2 will be discharged into the oil box section of the integrated stove body 101 through the oil delivery pipe 19. After the fan of the integrated stove body 101 is turned off, the oil scraper ring 27 will be reset and move inward under the action of the inner push spring rod 26, pushing the oil droplets accumulated on the inner wall of the oil fume separation pipe 13 towards the oil guide pipe 18. At the same time, the oil fume separation box 3 moves in a circular reciprocating motion above the smoke baffle 1, so that the oil fume discharged from the oil separating mesh opening 6 is evenly distributed, which facilitates the uniform purification of the oil fume purification box inside the smoke guide pipe and improves the purification efficiency.

[0040] This embodiment provides an integrated stove, including the oil fume purification device provided in Embodiment 1. The gas collection hood 8 is detachably and fixedly installed on the side wall of the smoke guiding chamber of the integrated stove body 101, and the housing of the drive motor 11 is fixedly installed on the side wall of the smoke guiding chamber of the integrated stove body 101.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fume purification device, comprising a baffle plate (1) for the smoke guiding chamber of an integrated stove body (101), characterized in that: Above the smoke baffle (1), an oil collection box (2), a movable oil fume separation box (3), and a fixed oil fume separation box (4) are arranged in sequence. Several oil-separating funnels (5) are arranged between the top wall of the oil collection box (2) and the bottom of the inner wall of the movable oil fume separation box (3). Oil-separating mesh openings (6) are symmetrically arranged on the side walls of the oil-separating funnels (5). Corrugated telescopic air guide pipes (7) are arranged between the two sides of the upper end face of the movable oil fume separation box (3) and the two side walls of the fixed oil fume separation box (4). An air collection hood (8) is arranged in the middle of the upper end face of the fixed oil fume separation box (4). A connecting thread hole block (9) is arranged on the side of the movable oil fume separation box (3). A reciprocating screw (10) is fitted through the connecting thread hole block (9). The free end of the reciprocating screw (10) is connected to the output shaft end of the drive motor (11). The fixed oil fume separation box (4) is provided with air guiding and accelerating cylinders (12) on both sides near the air inlet. The fixed oil fume separation box (4) is provided with an oil fume separation pipe (13) on the air outlet side of the air guiding and accelerating cylinder (12). The oil fume separation pipe (13) is rotatably provided with a rotating rod (14) on the air inlet side. An oil fume separation block (15) is provided at the outer end of the rotating rod (14). The outer wall of the oil fume separation block (15) is symmetrically provided with windward pushing grooves (16). The outer surface of the oil fume separation block (15) is coated with an oil-repellent layer (17). The bottom of the inner wall of the fixed oil fume separation box (4) is provided with an oil guiding pipe (18) that is connected to the oil collection box (2). The oil fume separation pipe (13) has a movable groove (25) on its side wall, and an inner push spring rod (26) is inserted into the movable groove (25). An oil scraper ring (27) is arranged in a ring on the inner wall of the oil fume separation pipe (13). The free end of the inner push spring rod (26) is fixedly mounted on the oil scraper ring (27). A bearing ring frame (28) is arranged inside the oil scraper ring (27). The rotating rod (14) is interference-fitted through the inner ring of the bearing ring frame (28), and the rotating rod (14) is located on the inner ring of the bearing ring frame (28). The bearing ring (28) is fitted with an oil shield (29) on the outer side of the bearing part. The outer surface of the oil shield (29) is provided with a cleaning brush plate (30) that is in contact with the inner wall of the oil scraper ring (27). The air guide acceleration cylinder (12) discharges oil fumes and drives the oil fume separation block (15), the rotating rod (14) and the cleaning brush plate (30) to rotate in sequence through the windward push groove (16). The oil scraper ring (27) overcomes the inner push spring rod (26) and performs grease scraping and sliding motion on the inner wall of the oil fume separation pipe (13).

2. The oil fume purification device according to claim 1, characterized in that: The bottom end of the oil collection box (2) is connected to an oil supply pipe (19) that is connected to the oil box part of the integrated stove body (101). The inside of the movable oil fume separation box (3) is located above the oil separation funnel (5) and a heat storage column (20) is arranged horizontally and longitudinally. An oil venting sleeve (21) is fitted on the outside of the heat storage column (20).

3. The oil fume purification device according to claim 1, characterized in that: The fixed oil fume separation box (4) has connecting air pipes (22) on both sides of its side walls. The connecting air pipes (22) are connected to the corrugated telescopic air guide pipe (7). The movable oil fume separation box (3) has a sliding frame (23) on its side. The top of the sliding frame (23) is fixed on the gas collection hood (8). The output shaft of the drive motor (11) drives the reciprocating screw (10) to rotate in the connecting screw hole block (9), thereby driving the movable oil fume separation box (3) to perform horizontal reciprocating motion on the smoke baffle (1).

4. The oil fume purification device according to claim 1, characterized in that: The air-guiding and accelerating cylinder (12) is composed of a contraction section and an expansion section on the inlet and outlet sides, respectively. A diversion cone (24) is provided between adjacent air-guiding and accelerating cylinders (12), and the top of the diversion cone (24) faces the exhaust port of the air-collecting hood (8).

5. The oil fume purification device according to claim 1, characterized in that: The oil fume separation block (15) is provided with a perforation (31), and a ventilation hole (32) is provided between the windward pushing groove (16) and the perforation (31). Oil guide ribs (33) are provided on the front and rear end faces of the oil fume separation block (15) at both ends of the perforation (31).

6. An integrated stove, characterized in that: The fume purification device includes any one of claims 1-5, wherein the gas collection hood (8) is detachably and fixedly installed on the side wall of the smoke guiding chamber of the integrated stove body (101), and the housing of the drive motor (11) is fixedly installed on the side wall of the smoke guiding chamber of the integrated stove body (101).

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