Oil fume purification and separation equipment

Abstract

The present application relates to the technical fields of separating device, in particular to a kind of oil fume purification separation equipment, including separating mechanism and cleaning mechanism, separating mechanism includes air inlet cover and material holding tray, air inlet cover includes outside plate, inside plate and top plate, material holding tray is located in the downside of air inlet cover, material holding tray is supported by drainage plate to material holding tray;Material holding tray has annular material holding groove, the inside plate of air inlet cover extends into the material holding groove, the outer groove wall of material holding groove extends into the annular groove of air inlet cover, S-shaped air inlet passage is formed between air inlet cover and the material holding groove, material holding groove is used for holding adsorbing material, and adsorbing material is used for adsorbing oil in oil fume, the groove bottom of material holding groove is mesh plate, the downside of mesh plate is connected with collection box, and cleaning mechanism is used for spraying treatment liquid to adsorbing material in material holding groove, so that the oil adsorbed on adsorbing material flows downward into collection box through mesh plate.The oil fume purification separation equipment of the present application reduces the disassembly frequency of internal structure, and disassembly operation is more convenient.

Description

Technical Field

[0001] This invention relates to the field of separation device technology, and specifically to an oil fume purification and separation device. Background Technology

[0002] To reduce the pollution of the atmosphere by cooking fumes, it is necessary to separate and purify the fumes. The application of existing technologies and equipment for oil fume separation and purification is already quite common and has brought good results.

[0003] Oil fume separation devices are used to separate oil from cooking fumes and then discharge the treated gas outdoors. Although existing oil fume separation devices can achieve the effect of separating oil fumes, they require frequent disassembly and cleaning of the internal structure. The entire disassembly and cleaning process is complicated and difficult to operate, which not only affects life and production, but also wastes time and energy. Summary of the Invention

[0004] This invention provides an oil fume purification and separation device to solve the technical problem that the disassembly, assembly, and cleaning process of existing oil fume separation devices is complex and difficult to operate.

[0005] The present invention provides an oil fume purification and separation device, which adopts the following technical solution:

[0006] An oil fume purification and separation device includes a support mechanism, a smoke guide plate, a fixed cylinder, and a smoke outlet pipe. The smoke guide plate and the fixed cylinder are respectively fixedly connected to the support mechanism. One end of the smoke outlet pipe is connected to the top of the fixed cylinder and communicates with the interior of the fixed cylinder. An oil fume suction mechanism is provided inside the fixed cylinder. The oil fume suction mechanism includes a rotating shaft and a fan blade fixed on the rotating shaft. The rotating shaft is connected to a power device. The oil fume purification and separation device also includes a separation mechanism and a cleaning mechanism. The separation mechanism includes an air inlet hood and a material collection tray. The air inlet hood has an annular groove structure with an inverted U-shaped cross-section. The air inlet hood includes an outer side plate, an inner side plate, and a top plate. The smoke guide plate has a mounting hole in the middle, and the air inlet hood is installed in the mounting hole. The material tray is located below the air inlet hood, and a flow guide plate is provided on the lower side of the material tray. The flow guide plate is connected to the smoke guide plate through a fixing claw and supports the material tray. The material tray has an annular material groove inside, and the inner side plate of the air inlet hood extends into the material groove. The outer wall of the material groove extends into the annular groove of the air inlet hood, forming an S-shaped air inlet channel between the air inlet hood and the material groove. The material groove is used to hold adsorbent material, which is used to adsorb oil in the fumes. The bottom of the material groove is a mesh plate with perforations, and a collection box is connected to the lower side of the mesh plate. The cleaning mechanism is used to spray treatment liquid onto the adsorbent material in the material groove, so that the oil adsorbed on the adsorbent material flows downward through the mesh plate into the collection box.

[0007] Furthermore, the cleaning mechanism includes a first cleaning mechanism and a second cleaning mechanism. The first cleaning mechanism is used to spray treatment liquid onto the adsorbent material located on the outer side of the inner side plate of the air inlet hood when the fume extraction mechanism is working. The second cleaning mechanism is disposed on the side wall of the fixed cylinder and is used to spray treatment liquid onto the adsorbent material located on the inner side of the inner side plate of the air inlet hood after the fume extraction mechanism stops working. The first cleaning mechanism includes a telescopic cylinder and a liquid storage bottle. The telescopic cylinder is disposed on the inner wall of the outer side plate of the air inlet hood. The telescopic cylinder and the liquid storage bottle are connected by an inlet pipe, so that the treatment liquid in the liquid storage bottle enters the telescopic cylinder through the inlet pipe. The telescopic cylinder is provided with a spray pipe. When the telescopic cylinder is compressed and contracted, the treatment liquid is sprayed out through the spray pipe. When the telescopic cylinder returns to its original position, the treatment liquid in the liquid storage bottle enters the telescopic cylinder.

[0008] Furthermore, the material tray is rotatable, and a bevel gear ring is provided on the outer circumferential surface of the material tray. A drive motor is fixed on the smoke guide plate, and a bevel gear is connected to the output shaft of the drive motor. The bevel gear meshes with the bevel gear ring, and the drive motor can drive the material tray to rotate, so that the spray pipe can spray the treatment liquid along the circumference of the material tray.

[0009] Furthermore, the outer circumferential surface of the material tray is provided with protrusions spaced circumferentially, which are used to intermittently squeeze the telescopic cylinder when the material tray rotates.

[0010] Furthermore, the telescopic cylinder includes a first cylinder and a second cylinder movably installed in the first cylinder. The first cylinder and the second cylinder are sealed together. A return spring is provided between the second cylinder and the inner wall of the air inlet hood. The return spring is used to drive the second cylinder to extend out of the first cylinder when the protrusion leaves the telescopic cylinder. The second cylinder is pushed into the second cylinder after being squeezed by the protrusion.

[0011] Furthermore, the air inlet hood is movably installed in the mounting hole along the vertical direction, and an adjustment mechanism is provided between the air inlet hood and the smoke guide plate. The adjustment mechanism is used to adjust the vertical position of the air inlet hood to adjust the length of the S-shaped air inlet channel, thereby adjusting the time for the oil fumes to pass through the S-shaped air inlet channel.

[0012] Furthermore, the adjustment mechanism includes an adjustment knob, which is rotatably mounted on the smoke guide plate via a connecting shaft. The end of the connecting shaft away from the adjustment knob is connected to a first gear. A rack extending vertically is provided on the outer circumferential surface of the air inlet hood. The first gear meshes with the rack. When the adjustment knob is turned, it can drive the air inlet hood to move up and down, thereby adjusting the vertical position of the air inlet hood.

[0013] Furthermore, the inner wall of the mounting hole is provided with guide grooves extending vertically at intervals along the circumference, and the outer circumferential surface of the air inlet shroud is provided with guide protrusions at intervals along the circumference. The guide protrusions are located in the guide grooves, the first gear is located in one of the guide grooves, and the rack is set on the guide block corresponding to the position of the first gear.

[0014] Furthermore, the material holding tank is provided with partitions evenly spaced along the circumference, and the adsorbent material is filled between adjacent partitions. The partitions are provided with notches to avoid the air inlet hood.

[0015] Furthermore, a fixing rod is fixed on the inner wall of the fixing cylinder. Two sets of fixing rods are arranged at intervals along the vertical direction, and the fixing rods in each set are arranged radially. The ends of the fixing rods that are close to each other are connected to a fixing sleeve. The rotating shaft is rotatably mounted on the fixing sleeve through a bearing. The rotating shaft is rotatably disposed inside the fixing cylinder through the fixing rods and the fixing sleeve. The power device is a first motor. The first motor is mounted on the top of the fixing cylinder through a fixing plate. A second gear is connected to the upper end of the rotating shaft. A third gear is connected to the output shaft of the first motor. The second gear and the third gear mesh.

[0016] The beneficial effects of this invention are as follows: By setting up an air inlet hood and a material collection tray, an S-shaped air inlet channel is formed. The material collection tray is filled with an oil-absorbing material. As the oil fumes pass through the S-shaped air inlet channel, the absorbent material adsorbs the oil in the fumes, separating it from the fumes and thus reducing air pollution. Simultaneously, this invention uses a cleaning mechanism to spray a treatment liquid onto the absorbent material, causing the oil on the material to flow downwards into the collection box. The collection box is cleaned only when a certain amount of oil is collected, eliminating the need for frequent disassembly of the oil fume separation device. Furthermore, this invention utilizes a guide plate to suspend the material collection tray on the smoke guide plate. When cleaning the collection box is required, simply opening the fixing claws and removing the guide plate allows the material collection tray to be removed, making the disassembly and assembly process simple and easy to operate.

[0017] Furthermore, the air inlet hood of the present invention divides the adsorbent material in the holding tank into inner and outer parts. The present invention utilizes a first and a second cleaning mechanism to spray and clean the inner and outer parts of the adsorbent material respectively. The first cleaning mechanism sprays and cleans the adsorbent material on the outer side of the inner plate of the air inlet hood during the operation of the fume extraction mechanism, that is, when the fan blades rotate to extract the fumes outward. The second cleaning mechanism sprays and cleans the adsorbent material on the inner side of the inner plate of the air inlet hood after the operation of the fume extraction mechanism is completed, that is, after the fan blades stop rotating. The reason for this arrangement is that, firstly, during the process of the fumes passing through the S-shaped air inlet channel, the fumes first pass through the adsorbent material on the outer side of the inner plate of the air inlet hood from top to bottom, and then from bottom to top. The flow of fumes through the adsorbent material on the inner side of the air inlet hood promotes the downward flow of the treatment liquid and oil in the outer adsorbent material, but hinders the downward flow of oil in the inner adsorbent material. Secondly, the adsorbent material through which the fumes first pass has more oil, while the adsorbent material through which they pass has less oil; that is, the adsorbent material on the outer side of the inner side of the air inlet hood has more oil, while the adsorbent material on the inner side of the inner side has less oil. Therefore, in this invention, when the fume extraction mechanism is working, only the first cleaning mechanism sprays and cleans the adsorbent material on the outer side. This not only removes most of the oil but also accelerates the downward flow of the treatment liquid and oil into the collection box. Then, after the fume extraction mechanism finishes working, the second cleaning mechanism is activated to clean the remaining small amount of oil in the adsorbent material, thus ensuring efficient and comprehensive cleaning of the adsorbent material.

[0018] Furthermore, this invention allows adjustment of the vertical position of the air inlet hood and the distance between the air inlet hood and the material tray according to the amount of oil fume, thereby adjusting the path length of the S-shaped air inlet channel. When the amount of oil fume is large, to ensure that the oil fume is quickly extracted and does not remain below the smoke guide plate, the path length of the S-shaped air inlet channel can be shortened by adjusting the mechanism, accelerating the oil fume passage speed and reducing the residence time of the oil fume in the adsorption material, allowing the oil fume to be extracted quickly. Conversely, when the amount of oil fume is relatively small, the path length of the S-shaped air inlet channel can be increased, increasing the residence time of the oil fume in the adsorption material, thereby improving the filtration effect of the oil fume. Therefore, this invention can adjust the position of the air inlet hood according to actual conditions to meet usage requirements, making it more widely applicable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of the oil fume purification and separation device of the present invention;

[0021] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of Embodiment 1 of the oil fume purification and separation device of the present invention;

[0022] Figure 3 This is a front view of Embodiment 1 of the oil fume purification and separation device of the present invention;

[0023] Figure 4 for Figure 3 Sectional view along axis AA;

[0024] Figure 5 This is a top view of Embodiment 1 of an oil fume purification and separation device of the present invention;

[0025] Figure 6 for Figure 5 BB-direction sectional view;

[0026] Figure 7 This is a side view of Embodiment 1 of an oil fume purification and separation device of the present invention;

[0027] Figure 8 for Figure 7 C-axis sectional view;

[0028] Figure 9 This is a schematic diagram of the material tray in Embodiment 1 of the oil fume purification and separation device of the present invention;

[0029] In the diagram: 100, Mounting plate; 101, Smoke guide plate; 102, Support rod; 103, Drainage plate; 104, Fixing claw; 105, Fixing cylinder; 106, Smoke outlet pipe; 107, Fixing plate; 108, Fixing rod; 200, Separation mechanism; 201, Air inlet hood; 202, Material tray; 203, Adsorbent material; 204, Smoke baffle; 205, Rotating shaft; 206, Fan blade; 207, Second gear; 208, First motor; 209, Third gear 210. Wheel; 211. Mesh plate; 211. Collection box; 300. Adjustment mechanism; 301. Adjustment knob; 302. First gear; 303. Rack; 304. Bevel gear ring; 305. Drive motor; 306. Bevel gear; 400. First cleaning mechanism; 401. Protrusion; 402. First cylinder; 403. Second cylinder; 404. Return spring; 405. Spray pipe; 406. Liquid inlet; 407. Liquid storage bottle; 408. Second cleaning mechanism. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Embodiment 1 of the oil fume purification and separation device of the present invention, as follows: Figures 1 to 9 As shown, the device includes a support mechanism, a smoke guide plate 101, a fixing cylinder 105, and a smoke outlet pipe 106. The smoke guide plate 101 and the fixing cylinder 105 are respectively fixedly connected to the support mechanism. In this embodiment, the support mechanism includes a mounting plate 100 and support rods 102. The mounting plate 100 is vertically arranged and used to fix it to the wall where it is to be installed. There are three support rods 102. One end of one support rod 102 is fixedly connected to the fixing cylinder 105, and the other end is fixedly connected to the mounting plate 100. The other two support rods 102 are fixedly connected to the smoke guide plate 101, and the other end is fixedly connected to the mounting plate 102. The support mechanism allows the oil fume purification and separation equipment to be installed at the required location. One end of the smoke outlet pipe 106 is connected to the top of the fixing cylinder 105, and the smoke outlet pipe 106 communicates with the interior of the fixing cylinder 105. The other end of the smoke outlet pipe 106 is used for flue connection, thereby discharging the oil fumes outdoors.

[0032] The fixed cylinder 105 is equipped with an oil fume extraction mechanism, which includes a rotating shaft 205 and a fan blade 206 fixed on the rotating shaft 205. The rotating shaft 205 is connected to a power device, which is a first motor 208. The first motor 208 is installed on the top of the fixed cylinder 105 through a fixing plate 107. A fixing rod 108 is fixed on the inner wall of the fixing cylinder 105. Two sets of fixing rods 108 are arranged at intervals in the vertical direction. The fixing rods 108 in each set are arranged radially. The ends of the fixing rods 108 that are close to each other are connected to a fixing sleeve. The rotating shaft 205 is rotatably mounted on the fixing sleeve through a bearing. The rotating shaft 205 is rotatably set inside the fixing cylinder 105 through the fixing rods 108 and the fixing sleeve. The upper end of the rotating shaft 205 is connected to a second gear 207. A third gear 209 is connected to the output shaft of the first motor 208. The second gear 207 and the third gear 209 mesh. The rotation of the first motor 208 drives the rotating shaft 205 and the fan blade 206 to rotate, drawing the oil fumes below the smoke guide plate 101 upward and expelling them outdoors.

[0033] The oil fume purification and separation equipment also includes a separation mechanism 200 and a cleaning mechanism. The separation mechanism 200 includes an air inlet hood 201 and a material collection tray 202. The air inlet hood 201 has an inverted U-shaped annular groove structure and includes an outer side plate, an inner side plate, and a top plate. The smoke guide plate 101 has a mounting hole in the middle, and the air inlet hood 201 is installed in the mounting hole. The material collection tray 202 is located below the air inlet hood 201 and has an annular material collection groove inside. The inner side plate of the air inlet hood 201 extends into the material collection groove, and the outer groove wall of the material collection groove extends into the annular groove of the air inlet hood 201. An S-shaped air inlet channel is formed between the air inlet hood 201 and the material collection groove. The inner side plate of the air inlet hood 201 constitutes a smoke baffle 204 for diverting oil fumes.

[0034] The lower side of the material tray 202 is provided with a flow guide plate 103, which is connected to the smoke guide plate 101 via a fixing claw 104. The flow guide plate 103 supports and fixes the material tray 202, and the lower side of the material tray 202 slides in conjunction with the upper side of the flow guide plate 103. The material trough is used to hold adsorbent material 203, which is used to adsorb oil in the fumes. The bottom of the material trough is a mesh plate 210 with perforations, and a collection box 211 is connected to the lower side of the mesh plate 210. The cleaning mechanism is used to spray treatment liquid onto the adsorbent material 203 in the material trough, so that the oil adsorbed on the adsorbent material 203 flows downward through the mesh plate 210 into the collection box 211.

[0035] In this embodiment, the cleaning mechanism includes a first cleaning mechanism 400 and a second cleaning mechanism 408. The first cleaning mechanism 400 is used to spray treatment liquid on the adsorbent material 203 located on the outer side of the inner side plate of the air inlet hood 201 when the fume extraction mechanism is working. The second cleaning mechanism 408 is disposed on the side wall of the fixed cylinder 105. The second cleaning mechanism 408 is used to spray treatment liquid on the adsorbent material 203 located on the inner side of the inner side plate of the air inlet hood 201 after the fume extraction mechanism stops working. The first cleaning mechanism 400 includes a telescopic cylinder and a storage bottle 407. The telescopic cylinder is disposed on the inner wall of the outer side plate of the air inlet hood 201. A liquid inlet 406 is provided on the side wall of the telescopic cylinder. The liquid inlet 406 of the telescopic cylinder is connected to the storage bottle 407 via a liquid inlet pipe, allowing the treatment liquid in the storage bottle 407 to enter the telescopic cylinder through the liquid inlet pipe. A spray pipe 405 is provided on the telescopic cylinder. When the telescopic cylinder is compressed and contracted, the treatment liquid is sprayed out through the spray pipe 405. When the telescopic cylinder returns to its original position, the treatment liquid in the storage bottle 407 enters the telescopic cylinder. It should be noted that in this embodiment, the mesh plate 210 only has mesh holes near the outer periphery of the material container, while the mesh plate 210 does not have mesh holes near the inner side of the material container.

[0036] The material tray 202 is rotatably mounted, and a bevel gear ring 304 is provided on its outer circumferential surface. A drive motor 305 is fixed on the smoke guide plate 101, and a bevel gear 306 is connected to the output shaft of the drive motor 305. The bevel gear 306 meshes with the bevel gear ring 304, and the drive motor 305 can drive the material tray 202 to rotate, so that the spray pipe 405 can spray the treatment liquid along the circumference of the material tray 202. The outer circumferential surface of the material tray 202 is provided with evenly spaced protrusions 401, which are formed by bent plates fixed to the outside of the material tray 202. The protrusions 401 are used to intermittently squeeze the telescopic cylinder when the material tray 202 rotates. The telescopic cylinder includes a first cylinder 402 and a second cylinder 403 movably installed in the first cylinder 402. The first cylinder 402 and the second cylinder 403 are sealed together. A return spring 404 is provided between the second cylinder 403 and the inner wall of the air inlet hood 201. The return spring 404 is used to drive the second cylinder 403 to extend out of the first cylinder 402 when the protrusion 401 leaves the telescopic cylinder. The second cylinder 403 is pushed into the second cylinder 403 after being squeezed by the protrusion 401.

[0037] In this embodiment, the structure of the second cleaning mechanism 408 differs from that of the first cleaning mechanism 400. The second cleaning mechanism 408 includes an electric telescopic cylinder connected to a liquid storage bottle 407. When the electric telescopic cylinder extends, it draws in treatment liquid from the liquid storage bottle 407. When the electric telescopic cylinder retracts, it sprays treatment liquid onto the adsorbent material 203. The electric telescopic cylinder is disposed on the outer circumferential surface of the fixed cylinder 105, and its nozzle extends into the fixed cylinder 105 to spray and clean the adsorbent material 203 located inside the smoke baffle 204 in the material holding tank. Of course, in other embodiments, the second cleaning mechanism 408 can also be configured to be manually operable. For example, the structure of the second cleaning mechanism 408 can be configured to be the same as that of the first cleaning mechanism 400, and the treatment liquid can be sprayed by manually squeezing the second cleaning mechanism 408.

[0038] In this embodiment, the air inlet hood 201 is movably installed in the mounting hole along the vertical direction. An adjustment mechanism 300 is provided between the air inlet hood 201 and the smoke guide plate 101. The adjustment mechanism 300 is used to adjust the vertical position of the air inlet hood 201 to adjust the length of the S-shaped air inlet channel, thereby adjusting the time it takes for the fumes to pass through the S-shaped air inlet channel. The adjustment mechanism 300 includes an adjustment knob 301, which is rotatably mounted on the smoke guide plate 101 via a connecting shaft. In this embodiment, the adjustment knob 301 is located on the front side of the fume purification and separation equipment (i.e., the side facing the user) for easy operation. A first gear 302 is connected to the end of the connecting shaft away from the adjustment knob 301. A rack 303 extending vertically is provided on the outer circumferential surface of the air inlet hood 201. The first gear 302 meshes with the rack 303. When the adjustment knob 301 is turned, it can drive the air inlet hood 201 to move vertically, thereby adjusting the vertical position of the air inlet hood 201. The inner wall of the mounting hole is provided with guide grooves extending vertically at intervals along the circumference. The outer circumferential surface of the air inlet cover 201 is provided with guide protrusions at intervals along the circumference. The guide protrusions are located in the guide grooves. The first gear 302 is located in one of the guide grooves. The rack 303 is set on the guide block corresponding to the position of the first gear 302.

[0039] In this embodiment, partitions are evenly spaced along the circumference inside the material container, and the adsorbent material 203 is filled between adjacent partitions. The partitions have notches to allow the air inlet hood 201 to pass through. This invention uses partitions to divide the internal space of the material container into multiple compartments, which avoids mutual interference between the adsorbent materials 203 in each compartment. This allows for selective replacement of the adsorbent material 203 in certain compartments based on its usage, reducing unnecessary waste.

[0040] In practical use of the oil fume purification and separation equipment of the present invention, when smoke extraction is required, the first motor 208 is started. The first motor 208 drives the rotating shaft 205 and the fan blade 206 to rotate, drawing the oil fume below the smoke guide plate 101 upwards. The oil fume then flows along... Figure 6 The oil fumes flow in the direction of the dashed arrow, passing through the air inlet hood 201 and the material trough in sequence before entering the smoke outlet pipe 106 and being discharged outward from the smoke outlet pipe 106.

[0041] When the fumes pass through the adsorption material 203 in the holding tank, the oil in the fumes is adsorbed, and the fumes are discharged outward through the exhaust pipe 106. During use, if the amount of fumes is large, the adjustment knob 301 is turned to move the air inlet hood 201 downward, reducing the distance between the air inlet hood 201 and the holding tray 202. This reduces the path of the fumes through the air inlet hood 201 and the holding tray 202, making it easier for the fumes to pass through the adsorption material 203 and reach the exhaust pipe 106, increasing the filtration speed, and thus enabling more fumes to be discharged outward as quickly as possible. After the fume extraction mechanism has been working for a period of time, the drive motor 305 starts, driving the material tray 202 to rotate. Multiple protrusions 401 on the material tray 202 intermittently squeeze the telescopic cylinder, causing the treatment liquid to be squeezed out from the telescopic cylinder. The treatment liquid is sprayed through the spray pipe 405 onto the adsorption material 203 located outside the material tray. Since the fume extraction mechanism is still working at this time, the treatment liquid is sprayed onto the adsorption material 203 following the airflow direction, which can better clean the oil on the adsorption material 203 and promote the downward flow of the treatment liquid and oil into the collection box 211. When the protrusions 401 leave the telescopic cylinder and no longer squeeze the telescopic cylinder, the telescopic cylinder draws the treatment liquid from the storage bottle 407 under the action of the return spring 404. When the fume extraction mechanism finishes working, the first motor 208 is turned off, and the second cleaning mechanism 408 is started. The second cleaning mechanism 408 sprays treatment liquid to clean the adsorption material 203 near the inner side of the material tank. The treatment liquid and oil will slowly flow downward and into the collection box 211 below, thus completing the efficient and comprehensive cleaning of the inner and outer adsorption materials 203.

[0042] This invention forms an S-shaped air intake channel by setting up an air inlet hood 201 and a material collection tray 202. The material collection tray 202 is filled with an oil-absorbing material 203. As the oil fumes pass through the S-shaped air intake channel, the absorbent material 203 absorbs the oil in the fumes, separating it from the oil and reducing air pollution. Simultaneously, this invention uses a cleaning mechanism to spray a treatment liquid onto the absorbent material 203, causing the oil on the absorbent material 203 to flow downwards into the collection box 211. The collection box 211 is cleaned only when a certain amount of oil is collected, eliminating the need for frequent disassembly of the oil fume separation device. Furthermore, this invention uses a diversion plate 103 to suspend the material collection tray 202 on the smoke guide plate 101. When cleaning the collection box 211 is required, simply opening the fixing claw 104 and removing the diversion plate 103 allows the material collection tray 202 to be removed, making the disassembly and assembly process simple and easy to operate.

[0043] This invention utilizes first and second cleaning mechanisms 408 to spray and clean the inner and outer portions of the adsorption material 203, respectively. The first cleaning mechanism 400 sprays and cleans the adsorption material 203 on the outer side of the inner panel of the air inlet hood 201 during the operation of the fume extraction mechanism, i.e., when the fan blade 206 rotates to extract fumes. The second cleaning mechanism 408 sprays and cleans the adsorption material 203 on the inner side of the inner panel of the air inlet hood 201 after the fume extraction mechanism has finished operating, i.e., after the fan blade 206 stops rotating. This arrangement is because, firstly, during the process of fumes passing through the S-shaped air inlet channel, the fumes first pass through the adsorption material 203 on the outer side of the inner panel of the air inlet hood 201 from top to bottom, and then pass through the adsorption material on the inner side of the inner panel of the air inlet hood 201 from bottom to top. The flow of oil fumes promotes the downward flow of the treatment liquid and oil in the outer adsorbent material 203, but hinders the downward flow of oil in the inner adsorbent material 203. Furthermore, the adsorbent material 203 that the fumes pass through first has more oil, while the adsorbent material 203 that passes through later has less oil. That is, the adsorbent material 203 on the outer side of the inner plate of the air inlet hood 201 has more oil, while the adsorbent material 203 on the inner side of the inner plate of the air inlet hood 201 has less oil. Therefore, in this invention, when the fume extraction mechanism is working, only the first cleaning mechanism 400 sprays and cleans the outer adsorbent material 203. This not only removes most of the oil but also accelerates the downward flow of the treatment liquid and oil into the collection box 211. Then, after the fume extraction mechanism finishes working, the second cleaning mechanism 408 is activated to clean the remaining small amount of oil in the adsorbent material 203, thus ensuring efficient and comprehensive cleaning of the adsorbent material 203.

[0044] Furthermore, the present invention can adjust the vertical position of the air inlet hood 201 and the distance between the air inlet hood 201 and the material tray 202 according to the amount of oil fume, thereby adjusting the path length of the S-shaped air inlet channel. When the amount of oil fume is large, in order to ensure that the oil fume is quickly extracted and does not remain below the smoke guide plate 101, the path length of the S-shaped air inlet channel can be shortened by adjusting the mechanism 300 to speed up the passage of oil fume, thereby reducing the residence time of oil fume in the adsorption material 203, so that the oil fume can be extracted quickly. Conversely, when the amount of oil fume is relatively small, the path length of the S-shaped air inlet channel can be increased to increase the residence time of oil fume in the adsorption material 203, thereby improving the filtration effect of oil fume. Therefore, the present invention can adjust the position of the air inlet hood 201 according to the actual situation to meet the usage requirements, and has a wider range of applications.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. An oil fume purification and separation device, comprising a support mechanism, a smoke guide plate (101), a fixed cylinder (105), and a smoke outlet pipe (106), wherein the smoke guide plate (101) and the fixed cylinder (105) are respectively fixedly connected to the support mechanism, one end of the smoke outlet pipe (106) is connected to the top of the fixed cylinder (105), and the smoke outlet pipe (106) communicates with the interior of the fixed cylinder (105), wherein the fixed cylinder (105) is provided with an oil fume suction mechanism, the oil fume suction mechanism comprising a rotating shaft (205) and a fan blade (206) fixed on the rotating shaft (205), the rotating shaft (205) being connected to a power device, characterized in that, The oil fume purification and separation equipment also includes a separation mechanism (200) and a cleaning mechanism. The separation mechanism (200) includes an air inlet hood (201) and a material collection tray (202). The air inlet hood (201) is an annular groove structure with an inverted U-shaped cross-section. The air inlet hood (201) includes an outer side plate, an inner side plate, and a top plate. The smoke guide plate (101) has a mounting hole in the middle, and the air inlet hood (201) is installed in the mounting hole. The material collection tray (202) is located on the lower side of the air inlet hood (201), and a flow guide plate (103) is provided on the lower side of the material collection tray (202). The flow guide plate (103) is connected to the smoke guide plate (101) through a fixing claw (104). The diversion plate (103) supports the material tray (202); the material tray (202) has an annular material trough, the inner side plate of the air inlet hood (201) extends into the material trough, the outer wall of the material trough extends into the annular groove of the air inlet hood (201), and an S-shaped air inlet channel is formed between the air inlet hood (201) and the material trough. The material trough is used to hold adsorbent material (203), which is used to adsorb oil in the fumes. The bottom of the material trough is a mesh plate (210) with mesh holes, and a collection box (211) is connected to the lower side of the mesh plate (210). The cleaning mechanism is used to clean the adsorbent material (203) in the material trough. The cleaning mechanism includes a first cleaning mechanism (400) and a second cleaning mechanism (408). The first cleaning mechanism (400) sprays the treatment liquid onto the adsorbent material (203) located on the outer side of the inner side plate of the air inlet hood (201) when the fume extraction mechanism is working. The second cleaning mechanism (408) is set on the side wall of the fixed cylinder (105). The second cleaning mechanism (408) sprays the treatment liquid onto the adsorbent material (203) located on the inner side plate of the air inlet hood (201) after the fume extraction mechanism stops working. The mechanism (400) includes a telescopic cylinder and a liquid storage bottle (407). The telescopic cylinder is installed on the inner wall of the outer side plate of the air inlet hood (201). The telescopic cylinder and the liquid storage bottle (407) are connected by an inlet pipe, so that the treatment liquid in the liquid storage bottle (407) enters the telescopic cylinder through the inlet pipe. The telescopic cylinder is provided with a spray pipe (405). When the telescopic cylinder is compressed and contracted, the treatment liquid is sprayed out through the spray pipe (405). When the telescopic cylinder is reset, the treatment liquid in the liquid storage bottle (407) enters the telescopic cylinder. The outer circumferential surface of the material tray (202) is provided with protrusions (401) spaced circumferentially. The protrusions (401) are used to intermittently squeeze the telescopic cylinder when the material tray (202) rotates.

2. The oil fume purification and separation equipment according to claim 1, characterized in that, The material tray (202) is rotatably mounted. A bevel gear ring (304) is provided on the outer circumferential surface of the material tray (202). A drive motor (305) is fixed on the smoke guide plate (101). A bevel gear (306) is connected to the output shaft of the drive motor (305). The bevel gear (306) meshes with the bevel gear ring (304). The drive motor (305) can drive the material tray (202) to rotate, so that the spray pipe (405) can spray the treatment liquid along the circumference of the material tray (202).

3. The oil fume purification and separation equipment according to claim 2, characterized in that, The telescopic cylinder includes a first cylinder (402) and a second cylinder (403) movably installed in the first cylinder (402). The first cylinder (402) and the second cylinder (403) are sealed together. A return spring (404) is provided between the second cylinder (403) and the inner wall of the air inlet hood (201). The return spring (404) is used to drive the second cylinder (403) to extend out of the first cylinder (402) when the protrusion (401) leaves the telescopic cylinder. The second cylinder (403) is pushed into the second cylinder (403) after being squeezed by the protrusion (401).

4. The oil fume purification and separation equipment according to any one of claims 1-3, characterized in that, The air inlet hood (201) is guided and movably installed in the mounting hole in the vertical direction. An adjustment mechanism (300) is provided between the air inlet hood (201) and the smoke guide plate (101). The adjustment mechanism (300) is used to adjust the vertical position of the air inlet hood (201) to adjust the length of the S-shaped air inlet channel, thereby adjusting the time for the oil fume to pass through the S-shaped air inlet channel.

5. The oil fume purification and separation equipment according to claim 4, characterized in that, The adjustment mechanism (300) includes an adjustment knob (301), which is rotatably mounted on the smoke guide plate (101) via a connecting shaft. The end of the connecting shaft away from the adjustment knob (301) is connected to a first gear (302). A rack (303) extending vertically is provided on the outer circumferential surface of the air inlet hood (201). The first gear (302) meshes with the rack (303). When the adjustment knob (301) is turned, it can drive the air inlet hood (201) to move up and down, thereby adjusting the vertical position of the air inlet hood (201).

6. The oil fume purification and separation equipment according to claim 5, characterized in that, The inner wall of the mounting hole is provided with guide grooves extending vertically and horizontally at intervals along the circumference. The outer circumferential surface of the air inlet cover (201) is provided with guide protrusions at intervals along the circumference. The guide protrusions are located in the guide grooves. The first gear (302) is located in one of the guide grooves. The rack (303) is set on the guide block corresponding to the position of the first gear (302).

7. The oil fume purification and separation equipment according to claim 1, characterized in that, The material container is provided with partitions evenly spaced along the circumference. The adsorbent material (203) is filled between adjacent partitions. The partitions have notches to avoid the air inlet hood (201).

8. The oil fume purification and separation equipment according to claim 1, characterized in that, The inner wall of the fixed cylinder (105) is fixed with a fixed rod (108). The fixed rod (108) is arranged in two sets at intervals along the vertical direction. The fixed rod (108) of each set is arranged radially. The ends of the fixed rods (108) that are close to each other are connected to a fixed sleeve. The rotating shaft (205) is rotatably mounted on the fixed sleeve through a bearing. The rotating shaft (205) is rotatably set inside the fixed cylinder (105) through the fixed rod (108) and the fixed sleeve. The power device is a first motor (208). The first motor (208) is mounted on the top of the fixed cylinder (105) through a fixed plate (107). The upper end of the rotating shaft (205) is connected to a second gear (207). The output shaft of the first motor (208) is connected to a third gear (209). The second gear (207) meshes with the third gear (209).

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