Dryer exhaust gas filtration device with oil collection function

Abstract

The invention discloses a dryer waste gas filtering device with an oil collecting function, relates to the technical field of dryer waste gas treatment, and has the advantage of being able to collect waste oil when filtering waste gas, so as to facilitate the discharge of waste oil in the later stage. The key points of the technical scheme are: comprising a treatment barrel and a conical cylinder installed at the barrel mouth of the treatment barrel, the barrel mouth of the treatment barrel faces downward, a bracket is provided on the inner wall of the conical cylinder, a filter core is vertically installed between the barrel bottom of the treatment barrel and the bracket, an air inlet pipe is provided on one side of the treatment barrel, an exhaust pipe connected to the filter core is provided on the top of the treatment barrel, the bottom end of the conical cylinder is connected to an oil discharge pipe, and an oil collecting mechanism connected to the oil discharge pipe is provided on the outer wall of the oil discharge pipe through a rotating member.

Description

Technical Field

[0001] The invention relates to the technical field of dryer waste gas treatment, in particular to a dryer waste gas filtering device with an oil collecting function. Background Art

[0002] Injection molding machine dryer is an auxiliary equipment for injection molding machine production. It is a device used to dry plastic raw materials. Injection molding machine dryer is often called "plastic dryer", "plastic pellet dryer" or "hopper dryer". Injection molding dryer will produce waste gas containing dust particles, non-methane hydrocarbons and other harmful substances during the injection molding process, and will also produce oil mist, so it is necessary to filter the waste gas through waste gas filtration equipment.

[0003] Oil mist mainly comes from the lubricating oil or other working fluids inside the machine, which evaporate or splash under the action of high temperature or mechanical movement to form oil in the exhaust gas. The exhaust gas filtering equipment of the injection molding dryer in the prior art simply filters the exhaust gas, resulting in oil mist remaining in the exhaust gas filtering equipment. After the exhaust gas filtering equipment is used for a long time, the waste oil formed by the oil mist accumulates in the exhaust gas filtering equipment and cannot be discharged, which will affect the filtering effect of the entire exhaust gas filtering equipment. Therefore, the applicant has developed a dryer exhaust gas filtering device with an oil collection function in the actual production process to solve the above technical problems. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a dryer exhaust gas filtering device with an oil collection function, which has the advantage of being able to collect waste oil when filtering the exhaust gas to facilitate the subsequent discharge of the waste oil.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a dryer exhaust gas filtering device with an oil collection function, comprising a processing barrel and a conical cylinder installed at the barrel mouth of the processing barrel, the barrel mouth of the processing barrel faces downward, a bracket is provided on the inner wall of the conical cylinder, a filter core is vertically installed between the barrel bottom of the processing barrel and the bracket, an air inlet pipe is provided on one side of the processing barrel, an exhaust pipe connected to the filter core is provided on the top of the processing barrel, the bottom end of the conical cylinder is connected to an oil drain pipe, and an oil collection mechanism connected to the oil drain pipe through a rotating member is provided on the outer wall of the oil drain pipe.

[0007] By adopting the above technical solution, the waste gas generated by the injection molding dryer enters the processing barrel from the air inlet pipe, and the waste gas in the processing barrel is filtered by the filter element and then discharged from the exhaust pipe. The oil mist in the waste gas stays in the processing barrel due to the setting of the filter element to form waste oil, and then the waste oil flows into the conical barrel under the action of gravity, and then the waste oil in the conical barrel is discharged from the processing barrel through the bracket and the oil discharge pipe in turn and flows into the oil collection mechanism for collection;

[0008] After the waste oil in the oil collecting mechanism is fully collected, the connection between the oil collecting mechanism and the oil discharge pipe is disconnected by the rotating member, and then the waste oil in the oil collecting mechanism can be dumped, so that the waste oil can be collected when the exhaust gas is filtered, so as to facilitate the discharge of the waste oil later;

[0009] The exhaust gas discharged from the exhaust pipe can be discharged or the exhaust pipe can be connected to another filtering device, so that the exhaust gas discharged from the exhaust pipe enters another filtering device for re-filtration treatment, and the hot air after filtration can be recycled into the dryer to realize the recycling of heat energy. It is simple and convenient to use.

[0010] Preferably, the rotating member comprises a cylinder coaxially arranged on the outer wall of the oil drain pipe, and the cylinder is connected to the oil drain pipe, and the oil collecting mechanism comprises a second collecting barrel threadedly connected to the outer wall of the cylinder, and the second collecting barrel is connected to the cylinder.

[0011] Preferably, the rotating member is used to drive the oil collecting mechanism to rotate. When the rotating member drives the oil collecting mechanism to rotate, the rotating member closes the bottom pipe opening of the oil drain pipe. The rotating member includes a disc, a rotating drum and two support plates vertically arranged on the outer wall of the conical drum. The two support plates are opposite and are respectively located on both sides of the oil drain pipe, and one end of the two support plates close to the oil drain pipe is connected to the oil drain pipe through a support rod. The rotating drum is coaxially fixedly connected to the disc, and the disc and the rotating drum are both located between the two support plates and are both located below the oil drain pipe. A pushing member for pushing the disc to move vertically upward between the two support plates is provided on the support plate close to the disc, and a driving member for driving the disc to rotate is provided on the support plate close to the disc. A transition plate is provided at the bottom end of the oil drain pipe, and a transition groove connected to the oil drain pipe is opened on the transition plate. A first sealing gasket that contacts the outer wall of the rotating drum is installed at the bottom end of the transition plate. A connecting groove corresponding to the connecting groove is opened on the outer wall of the rotating drum, and the oil collecting mechanism is arranged on the inner side of the rotating drum and connected with the connecting groove.

[0012] Preferably, the pushing member includes a first slide groove vertically opened on one side of the support plate, a first slider is vertically slidably connected in the first slide groove, and a first compression spring is provided between the first slider and the bottom groove wall of the first slide groove, a rotating groove is opened on one side of the first slider, and a rotating shaft is rotatably connected in the rotating groove, one end of the rotating shaft close to the disc extends outside the rotating groove and is coaxially fixedly connected to the disc, and the driving member drives the rotating shaft to rotate.

[0013] Preferably, the driving member includes three circular rings, and the three circular rings are connected by a Y-shaped first suspension plate, the first suspension plate is located on the side of the rotating shaft away from the disk, and the center of the side of the first suspension plate close to the rotating shaft is fixedly connected to the rotating shaft, at this time, the three circular rings are evenly distributed along the circumference of the rotating shaft, a fixing frame is provided on the support plate close to the disk, and the end of the fixing frame connected to the support plate is located above the slide groove, a motor is provided on the fixing frame, and a Y-shaped second suspension plate is provided at one end of the rotating shaft of the motor, the second suspension plate is opposite to the first suspension plate, and three columns are horizontally provided on the side of the second suspension plate close to the first suspension plate, the three columns correspond one-to-one to the three circular rings, and the ends of the three columns away from the second suspension plate are all located in the circular ring.

[0014] Preferably, the oil collecting mechanism comprises a first collecting barrel vertically mounted on the inner wall of the rotating drum, and the barrel mouth of the first collecting barrel is connected to the connecting groove. When the disc rotates 180 degrees, the first collecting barrel is provided with a scraping member for scraping off the waste oil adhered to the inner wall of the first collecting barrel.

[0015] Preferably, the scraper includes a rectangular rod and a rectangular groove opened at the bottom of the first collecting barrel, the rectangular rod is vertically arranged, and the top end of the rectangular rod vertically passes through the rectangular groove and is provided with a scraper disk located in the first collecting barrel, and a second slide groove is vertically opened on the support plate away from the disc, and a second slider is vertically slidably connected in the second slide groove, and a baffle is coaxially connected to the side of the rotating drum away from the disc, and the side of the baffle away from the rotating drum is fixedly connected to the second slider, and when the disc rotates 180 degrees, the baffle is provided with a transmission member for pushing the rectangular rod to drive the scraper disk to move away from the bottom of the first collecting barrel.

[0016] Preferably, the transmission member includes a first arc groove and a second arc groove which are opened on the side of the baffle plate away from the rotating drum, the second arc groove is located above the first arc groove and is connected to the first arc groove, the curvature of the first arc groove is consistent with the curvature of the arc surface on the baffle plate, and the end of the second arc groove away from the first arc groove is close to the center of the baffle plate, and a driving shaft is horizontally provided below the side of the rectangular rod close to the baffle plate, and the end of the driving shaft away from the rectangular rod is coaxially rotatably connected to a swivel located in the first arc groove.

[0017] Preferably, a second sealing pad is provided at the bottom end of the scraper plate and contacts the bottom of the first collecting bucket, and a second compression spring is provided between the second sliding block and the bottom end groove wall of the second sliding groove.

[0018] Preferably, a first observation window is provided on one side of the barrel wall of the first collecting barrel, a second observation window corresponding to the first observation window is provided on the outer wall of the rotating drum, a guide plate is obliquely provided on the outer wall of the rotating drum, and the guide plate is located above the second observation window, and the end of the guide plate away from the rotating drum is inclined toward the direction close to the second observation window, the bottom ends of the two support plates are provided with connecting frames, and the bottom ends of the two connecting frames are connected by a placement plate, the placement plate is located below the rotating drum, and a storage box located below the rotating drum is placed on the placement plate.

[0019] The beneficial effects of the present invention are as follows: the waste gas generated by the injection molding dryer enters the processing barrel from the air inlet pipe, the waste gas in the processing barrel is filtered by the filter element and then discharged from the exhaust pipe, the oil mist in the waste gas stays in the processing barrel due to the setting of the filter element to form waste oil, and then the waste oil flows into the conical barrel under the action of gravity, and then the waste oil in the conical barrel is discharged from the processing barrel through the bracket and the oil discharge pipe in turn and flows into the oil collecting mechanism for collection;

[0020] After the waste oil in the oil collecting mechanism is fully collected, the connection between the oil collecting mechanism and the oil discharge pipe is disconnected by the rotating member, and then the waste oil in the oil collecting mechanism can be dumped, so that the waste oil can be collected when the exhaust gas is filtered, so as to facilitate the discharge of the waste oil later;

[0021] The exhaust gas discharged from the exhaust pipe can be discharged or the exhaust pipe can be connected to another filtering device, so that the exhaust gas discharged from the exhaust pipe enters another filtering device for re-filtration treatment, and the hot air after filtration can be recycled into the dryer to realize the recycling of heat energy. It is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of this embodiment;

[0024] Figure 2 This is a schematic diagram of the structure of the conical tube in this embodiment;

[0025] Figure 3 This is a schematic diagram of the structure of the rotating drum in this embodiment;

[0026] Figure 4 This is a schematic diagram of the structure of the fixing frame of this embodiment;

[0027] Figure 5This is a schematic diagram of the structure of the baffle plate in this embodiment;

[0028] Figure 6 This is a schematic diagram of the structure of the disc in this embodiment;

[0029] Figure 7 It is a schematic diagram of the structure of a ring in this embodiment.

[0030] Description of reference numerals:

[0031] In the figure: 1, treatment barrel; 2, conical barrel; 3, bracket; 4, filter element; 5, air inlet pipe; 6, exhaust pipe; 7, oil drain pipe; 8, barrel; 9, second collection barrel; 10, disc; 12, rotating barrel; 13, support plate; 14, transition plate; 15, transition groove; 16, first sealing gasket; 17, connecting groove; 18, first slide groove; 19, first slider; 20, first compression spring; 21, rotating groove; 22, rotating shaft; 23, ring; 24, first suspension plate; 25, fixing frame; 26, motor; 27 , second hanging plate; 28, column; 29, first collecting bucket; 30, rectangular rod; 31, rectangular groove; 32, scraper plate; 33, second slide groove; 34, second slider; 35, baffle plate; 36, first arc groove; 37, second arc groove; 38, driving shaft; 39, swivel; 40, second sealing gasket; 41, second compression spring; 42, first observation window; 43, second observation window; 44, guide plate; 45, connecting frame; 46, placement plate; 47, storage box; 48, square groove; 49, slide rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] A dryer exhaust gas filtering device with oil collection function, such as Figure 1 and Figure 2 , comprising a treatment barrel 1 and a conical barrel 2 installed at the barrel mouth of the treatment barrel 1, the barrel mouth of the treatment barrel 1 faces downward, a bracket 3 is provided on the inner wall of the conical barrel 2, a filter element 4 is vertically installed between the barrel bottom of the treatment barrel 1 and the bracket 3, an air inlet pipe 5 is provided on one side of the treatment barrel 1, an exhaust pipe 6 connected to the filter element 4 is provided at the top of the treatment barrel 1, an oil drain pipe 7 is connected to the bottom end of the conical barrel 2, and an oil collection mechanism connected to the oil drain pipe 7 through a rotating member is provided on the outer wall of the oil drain pipe 7.

[0034] like Figure 1 and Figure 2The waste gas generated by the injection molding dryer enters the processing barrel 1 from the air inlet pipe 5, and the waste gas in the processing barrel 1 is filtered by the filter element 4 and then discharged from the exhaust pipe 6. The oil mist in the waste gas stays in the processing barrel 1 due to the setting of the filter element 4 to form waste oil, and then the waste oil flows into the conical barrel 2 under the action of gravity, and then the waste oil in the conical barrel 2 is discharged from the processing barrel 1 through the bracket 3 and the oil discharge pipe 7 in turn and flows into the oil collection mechanism for collection;

[0035] After the waste oil in the oil collecting mechanism is fully collected, the connection between the oil collecting mechanism and the oil discharge pipe 7 is disconnected by the rotating member, and then the waste oil in the oil collecting mechanism can be dumped, so that the waste oil can be collected when the exhaust gas is filtered, so as to facilitate the purpose of discharging the waste oil later;

[0036] The exhaust gas discharged from the exhaust pipe 6 can be discharged or the exhaust pipe 6 can be connected to another filtering device, so that the exhaust gas discharged from the exhaust pipe 6 enters another filtering device for further filtering treatment, and the hot air after filtering can be recycled into the dryer to realize heat energy recycling, which is simple and convenient to use.

[0037] like Figure 1 and Figure 2 The rotating member includes a cylinder 8 coaxially arranged on the outer wall of the oil drain pipe 7, and the cylinder 8 is connected to the oil drain pipe 7. The oil collecting mechanism includes a second collecting barrel 9 threadedly connected to the outer wall of the cylinder 8, and the second collecting barrel 9 is connected to the cylinder 8. The purpose of this arrangement is that the waste oil enters the cylinder 8 after passing through the oil drain pipe 7, and then enters the second collecting barrel 9 from the cylinder 8 for collection. When the waste oil in the second collecting barrel 9 is full, the second collecting barrel 9 is unscrewed from the cylinder 8, and then the waste oil in the second collecting barrel 9 can be dumped. It is simple and convenient to use.

[0038] like Figure 3 and Figure 4The rotating member is used to drive the oil collecting mechanism to rotate. When the rotating member drives the oil collecting mechanism to rotate, the rotating member closes the bottom end of the oil drain pipe 7. Alternatively, the rotating member includes a disc 10, a rotating drum 12, and two support plates 13 vertically arranged on the outer wall of the conical cylinder 2. The two support plates 13 are opposite and are respectively located on both sides of the oil drain pipe 7, and one end of the two support plates 13 close to the oil drain pipe 7 is connected to the oil drain pipe 7 through a support rod. The rotating drum 12 is coaxially fixedly connected to the disc 10, and the disc 10 and the rotating drum 12 are both located between the two support plates 13 and are both located below the oil drain pipe 7, close to A pushing member for pushing the disc 10 to move vertically upward between the two supporting plates 13 is provided on the supporting plate 13 of the disc 10, and a driving member for driving the disc 10 to rotate is provided on the supporting plate 13 close to the disc 10. A transition plate 14 is provided at the bottom end of the oil drain pipe 7, and a transition groove 15 connected to the oil drain pipe 7 is provided on the transition plate 14. A first sealing gasket 16 that abuts against the outer wall of the rotating drum 12 is installed at the bottom end of the transition plate 14, and a connecting groove 17 corresponding to the transition groove 15 is provided on the outer wall of the rotating drum 12. The oil collection mechanism is arranged on the inner side of the rotating drum 12 and connected to the connecting groove 17.

[0039] like Figure 3 and Figure 4 , after passing through the oil discharge pipe 7, the waste oil enters the oil collecting mechanism through the transition groove 15 and the connecting groove 17 in sequence. After the waste oil in the oil collecting mechanism is fully collected, the disc 10 is driven by the driving member to rotate. At this time, the drum 12 and the oil collecting mechanism will follow the disc 10 to rotate along the rotation axis of the disc 10. At this time, the connecting groove 17 and the transition groove 15 will be misaligned. At this time, the oil discharge pipe 7 can be closed by the cooperation of the first sealing gasket 16, the transition plate 14 and the outer wall of the drum 12. When the disc 10 rotates 180 degrees, the waste oil in the oil collecting mechanism will be discharged from the oil collecting mechanism through the connecting groove 17. When the waste oil in the oil collecting mechanism is discharged from the oil collecting mechanism, there is no need to stop the waste gas from the air inlet pipe 5 to enter the processing barrel 1, thereby improving the filtering efficiency of the waste gas. When the waste oil in the oil collecting mechanism is discharged, the disc 10 is driven by the driving member to rotate 180 degrees in the opposite direction, and the oil collecting mechanism is returned to its original position.

[0040] When the disc 10 and the drum 12 rotate, the first sealing gasket 16 contacts with the outer wall of the drum 12, so the first sealing gasket 16 will be worn when the drum 12 rotates. As the first sealing gasket 16 wears and becomes thinner as the drum 12 rotates, the pushing member will push the disc 10 to move vertically upward between the two support plates 13, so that the outer wall of the drum 12 always contacts with the first sealing gasket 16, reducing the occurrence of air leakage between the first sealing gasket 16 and the outer wall of the drum 12 due to the wear and thinning of the first sealing gasket 16. The driving member will not affect the vertical movement of the disc 10 and the drum 12, and it is simple and convenient to use.

[0041] like Figure 3 and Figure 4The pushing member includes a first slide groove 18 vertically opened on one side of the support plate 13, a first slider 19 is vertically slidably connected in the first slide groove 18, and a first compression spring 20 is provided between the first slider 19 and the bottom groove wall of the first slide groove 18, a rotating groove 21 is opened on one side of the first slider 19, and a rotating shaft 22 is rotatably connected in the rotating groove 21, and one end of the rotating shaft 22 close to the disc 10 extends to the outside of the rotating groove 21 and is coaxially fixedly connected to the disc 10, and the driving member drives the rotating shaft 22 to rotate.

[0042] like Figure 3 and Figure 4 The first compression spring 20 is always in a compressed state. When the first sealing gasket 16 wears and becomes thinner as the drum 12 rotates, the first compression spring 20 will push the first slider 19 to move vertically upward in the first slide groove 18. At this time, the first slider 19 will drive the rotating shaft 22 to move upward through the rotating groove 21. At this time, the disc 10, the drum 12 and the oil collecting mechanism will move upward with the rotating shaft 22, so that the outer wall of the drum 12 is always in contact with the first sealing gasket 16, reducing the occurrence of air leakage between the first sealing gasket 16 and the outer wall of the drum 12 due to the wear and thinning of the first sealing gasket 16. It is simple and convenient to use.

[0043] like Figure 3 and Figure 4 and Figure 7 The driving member includes three circular rings 23, and the three circular rings 23 are connected by a Y-shaped first suspension plate 24. The first suspension plate 24 is located on the side of the rotating shaft 22 away from the disc 10, and the center of the side of the first suspension plate 24 close to the rotating shaft 22 is fixedly connected to the rotating shaft 22. At this time, the three circular rings 23 are evenly distributed along the circumference of the rotating shaft 22, and a fixing frame 25 is provided on the support plate 13 close to the disc 10, and the end of the fixing frame 25 connected to the support plate 13 is located above the slide groove, and a motor 26 is provided on the fixing frame 25, and a Y-shaped second suspension plate 27 is provided at one end of the rotating shaft of the motor 26. The second suspension plate 27 is opposite to the first suspension plate 24, and three columns 28 are horizontally provided on the side of the second suspension plate 27 close to the first suspension plate 24. The three columns 28 correspond to the three circular rings 23 one by one, and the ends of the three columns 28 away from the second suspension plate 27 are all located in the circular ring 23.

[0044] like Figure 3 and Figure 4 and Figure 7, turn on the motor 26, the rotating shaft of the motor 26 drives the second suspension plate 27 to rotate, and at this time, the three cylinders 28 follow the second suspension plate 27 to rotate along the rotation axis of the second suspension plate 27. At this time, because the three cylinders 28 correspond to the three rings 23 one by one, and the ends of the three cylinders 28 away from the second suspension plate 27 are all located in the ring 23, when the three cylinders 28 rotate along the rotation axis of the second suspension plate 27, the cylinders 28 will contact one side of the inner wall of the ring 23, and drive the first suspension plate 24 to rotate through the three rings 23, and at this time, the first suspension plate 24 will drive the rotating shaft 22 to rotate in the rotating groove 21, and at this time, the rotating shaft 22 will drive the disc 10 to rotate;

[0045] When the disk 10 moves vertically upward, the three cylinders 28 will be displaced in the vertical direction within the three rings 23, so the vertical movement and rotation of the disk 10 do not affect each other, and the use is simple and convenient.

[0046] like Figure 4 Alternatively, the oil collecting mechanism includes a first collecting barrel 29 vertically mounted on the inner wall of the drum 12, and the barrel mouth of the first collecting barrel 29 is connected to the connecting groove 17. When the disc 10 rotates 180 degrees, the first collecting barrel 29 is provided with a scraping member for scraping off the waste oil adhered to the inner wall of the first collecting barrel 29.

[0047] like Figure 4 After passing through the oil drain pipe 7, the waste oil sequentially passes through the transition groove 15 and the connecting groove 17 into the first collecting barrel 29 for collection. After the waste oil in the first collecting barrel 29 is fully collected, the disc 10 is rotated 180 degrees by the driving member. When the disc 10 rotates to 90 degrees, the first collecting barrel 29 will be in a horizontal state. At this time, the waste oil in the first collecting barrel 29 will be poured out from the first collecting barrel 29. During the waste oil pouring process, the disc 10 continues to rotate, and the waste oil adhered to the inner wall of the first collecting barrel 29 is scraped off by the scraping member. At this time, the situation that the waste oil adhered to the inner wall of the first collecting barrel 29 cannot be poured out can be reduced, and the speed of pouring the waste oil from the first collecting barrel 29 can be increased by the scraping member, which is simple and convenient to use.

[0048] like Figure 4The scraper includes a rectangular rod 30 and a rectangular groove 31 opened at the bottom of the first collecting barrel 29. The rectangular rod 30 is vertically arranged, and the top end of the rectangular rod 30 vertically passes through the rectangular groove 31 and is provided with a scraper disc 32 located in the first collecting barrel 29. A second slide groove 33 is vertically opened on the support plate 13 away from the disc 10, and a second slider 34 is vertically slidably connected in the second slide groove 33. A baffle plate 35 is coaxially connected to the side of the rotating drum 12 away from the disc 10, and the side of the baffle plate 35 away from the rotating drum 12 is fixedly connected to the second slider 34. When the disc 10 rotates 180 degrees, a transmission member for pushing the rectangular rod 30 to drive the scraper disc 32 to move in a direction away from the bottom of the first collecting barrel 29 is provided on the baffle plate 35, and Figure 5 The transmission member includes a first arc groove 36 and a second arc groove 37 which are opened on the side of the baffle plate 35 away from the rotating drum 12. The second arc groove 37 is located above the first arc groove 36 and is connected to the first arc groove 36. The curvature of the first arc groove 36 is consistent with the curvature of the arc surface on the baffle plate 35. One end of the second arc groove 37 away from the first arc groove 36 is close to the center of the baffle plate 35. A driving shaft 38 is horizontally provided below one side of the rectangular rod 30 close to the baffle plate 35, and the end of the driving shaft 38 away from the rectangular rod 30 is coaxially rotatably connected with a swivel 39 located in the first arc groove 36.

[0049] like Figure 4 and Figure 5 When the disc 10 is rotated by the driving member, the first collecting bucket 29, the rotating drum 12, the scraping disc 32, the rectangular rod 30, the driving shaft 38 and the rotating ring 39 will follow the disc 10 to rotate along the rotation axis of the disc 10. During the 180-degree rotation of the disc 10, the rotating ring 39 on the driving shaft 38 will move in the first arc groove 36. When the rotating ring 39 moves to the end where the first arc groove 36 and the second arc groove 37 are connected, the rotation angle of the disc 10 is 90 degrees. Then, as the disc 10 rotates, the rotating ring 39 After entering the second arc groove 37, because the end of the second arc groove 37 away from the first arc groove 36 is close to the center of the baffle plate 35, the driving shaft 38 can be driven to drive the rectangular rod 30 to move toward the barrel opening of the first collection barrel 29 through the cooperation of the rotating ring 39 and the second arc groove 37. At this time, the scraping plate 32 will move with the rectangular rod 30. At this time, the scraping plate 32 can scrape the waste oil adhering to the inner wall of the first collection barrel 29, and at the same time, the scraping plate 32 can increase the speed of pouring the waste oil from the first collection barrel 29;

[0050] A square groove 48 is provided at the bottom end of the rectangular rod 30, and a slide rod 49 is vertically slidably connected in the square groove 48. The bottom end of the slide rod 49 extends out of the square groove 48 and is fixedly connected to the inner wall of the rotating drum 12. Through the cooperation between the slide rod 49 and the square groove 48, the bending of the rectangular rod 30 can be reduced, and it is simple and convenient to use.

[0051] like Figure 4 A second sealing gasket 40 is provided at the bottom end of the scraper plate 32, which abuts against the bottom of the first collecting barrel 29. A second compression spring 41 is provided between the second slider 34 and the bottom groove wall of the second slide groove 33. The purpose of this arrangement is that the second compression spring 41 is always in a compressed state. When the first sealing gasket 16 is worn, the first compression spring 20 will push the first slider 19 to move upward, and the second compression spring 41 will push the second slider 34 to move upward. At this time, the cooperation between the second slider 34, the second compression spring 41 and the second slide groove 33 can improve the stability of the disc 10 and the rotating drum 12 when they move vertically upward. The second sealing gasket 40 can reduce the waste oil in the first collecting barrel 29 from the scraper plate 32 and the bottom of the first collecting barrel 29 to the rectangular groove 31, and the waste oil flows out of the first collecting barrel 29 from the rectangular groove 31. It is simple and convenient to use.

[0052] like Figure 5 A first observation window 42 is provided on one side of the barrel wall of the first collecting barrel 29, a second observation window 43 corresponding to the first observation window 42 is provided on the outer wall of the rotating drum 12, a guide plate 44 is obliquely provided on the outer wall of the rotating drum 12, and the guide plate 44 is located above the second observation window 43, and the end of the guide plate 44 away from the rotating drum 12 is inclined toward the direction close to the second observation window 43, and the bottom ends of the two support plates 13 are provided with a connecting frame 45, and the bottom ends of the two connecting frames 45 are connected by a placing plate 46, the placing plate 46 is located below the rotating drum 12, and the placing plate 46 is placed with a The storage box 47 below the drum 12 is provided for the purpose of facilitating the collection of waste oil in the first collecting barrel 29 through the first observation window 42 and the second observation window 43. When the disc 10 rotates 180 degrees to pour out the waste oil in the first collecting barrel 29, the guide plate 44 will move away from the transition plate 14. The guide plate 44 can reduce the waste oil poured out along the outer wall of the rotating drum 12 to the second observation window 43, thereby reducing the occurrence of a situation that affects the use of the second observation window 43. The storage box 47 is used to receive and store the waste oil poured out from the first collecting barrel 29, and is simple and convenient to use.

[0053] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A dryer exhaust gas filtering device with oil collection function, characterized in that: The invention comprises a treatment barrel (1) and a conical barrel (2) installed at the barrel mouth of the treatment barrel (1), the barrel mouth of the treatment barrel (1) faces downward, a bracket (3) is provided on the inner wall of the conical barrel (2), a filter element (4) is vertically installed between the barrel bottom of the treatment barrel (1) and the bracket (3), an air inlet pipe (5) is provided on one side of the treatment barrel (1), an exhaust pipe (6) connected to the filter element (4) is provided at the top of the treatment barrel (1), an oil drain pipe (7) is connected to the bottom end of the conical barrel (2), and an oil collection mechanism connected to the oil drain pipe (7) is provided on the outer wall of the oil drain pipe (7) via a rotating member; The rotating member is used to drive the oil collecting mechanism to rotate. When the rotating member drives the oil collecting mechanism to rotate, the rotating member closes the bottom end of the oil drain pipe (7). The rotating member comprises a disc (10), a rotating cylinder (12) and two support plates (13) vertically arranged on the outer wall of the conical cylinder (2). The two support plates (13) are opposite to each other and are respectively located on both sides of the oil drain pipe (7). One end of the two support plates (13) close to the oil drain pipe (7) is connected to the oil drain pipe (7) through a support rod. The rotating cylinder (12) is coaxially fixedly connected to the disc (10). The disc (10) and the rotating cylinder (12) are both located between the two support plates (13) and below the oil drain pipe (7). The support plate (13) is provided with a pusher for pushing the disc (10) to move vertically upward between the two support plates (13); the support plate (13) close to the disc (10) is provided with a drive member for driving the disc (10) to rotate; a transition plate (14) is provided at the bottom end of the oil drain pipe (7); a transition groove (15) connected to the oil drain pipe (7) is provided on the transition plate (14); a first sealing gasket (16) abutting against the outer wall of the rotating drum (12) is installed at the bottom end of the transition plate (14); a connecting groove (17) corresponding to the connecting groove (15) is provided on the outer wall of the rotating drum (12); and the oil collecting mechanism is arranged on the inner side of the rotating drum (12) and connected to the connecting groove (17); The pushing member comprises a first slide groove (18) vertically opened on one side of the support plate (13), a first slider (19) is vertically slidably connected in the first slide groove (18), and a first compression spring (20) is arranged between the first slider (19) and the bottom groove wall of the first slide groove (18), a rotating groove (21) is opened on one side of the first slider (19), and a rotating shaft (22) is rotatably connected in the rotating groove (21), an end of the rotating shaft (22) close to the disc (10) extends outside the rotating groove (21) and is coaxially fixedly connected with the disc (10), and the driving member drives the rotating shaft (22) to rotate; The driving member comprises three circular rings (23), the three circular rings (23) are connected by a Y-shaped first suspension plate (24), the first suspension plate (24) is located on a side of the rotating shaft (22) away from the disc (10), and the center of a side of the first suspension plate (24) close to the rotating shaft (22) is fixedly connected to the rotating shaft (22), and the three circular rings (23) are evenly distributed along the circumference of the rotating shaft (22), and a fixing frame (25) is provided on the support plate (13) close to the disc (10), and the fixing frame (25) and the support plate One end connected to (13) is located above the slide slot, a motor (26) is provided on the fixed frame (25), and a Y-shaped second suspension plate (27) is provided at one end of the rotating shaft of the motor (26), the second suspension plate (27) is opposite to the first suspension plate (24), and three columns (28) are horizontally provided on one side of the second suspension plate (27) close to the first suspension plate (24), the three columns (28) correspond to the three rings (23) one by one, and the ends of the three columns (28) away from the second suspension plate (27) are all located in the ring (23).

2. The dryer exhaust gas filtering device with oil collection function according to claim 1, characterized in that: The oil collecting mechanism comprises a first collecting barrel (29) vertically mounted on the inner wall of the rotating drum (12), and the barrel mouth of the first collecting barrel (29) is connected to the connecting groove (17). When the disc (10) rotates 180 degrees, a scraping member is provided on the first collecting barrel (29) for scraping off the waste oil adhered to the inner wall of the first collecting barrel (29).

3. The dryer exhaust gas filtering device with oil collection function as claimed in claim 2, characterized in that: The scraper member comprises a rectangular rod (30) and a rectangular groove (31) provided at the bottom of the first collecting barrel (29); the rectangular rod (30) is vertically arranged, and the top end of the rectangular rod (30) vertically passes through the rectangular groove (31) and is provided with a scraper disc (32) located in the first collecting barrel (29); a second slide groove (33) is vertically provided on the support plate (13) away from the disc (10); a second slide block (34) is vertically slidably connected in the second slide groove (33); a baffle plate (35) is coaxially rotatably connected to a side of the rotating drum (12) away from the disc (10); and a side of the baffle plate (35) away from the rotating drum (12) is fixedly connected to the second slide block (34); when the disc (10) rotates 180 degrees, a transmission member is provided on the baffle plate (35) for pushing the rectangular rod (30) to drive the scraper disc (32) to move in a direction away from the bottom of the first collecting barrel (29).

4. The dryer exhaust gas filtering device with oil collection function as claimed in claim 3, characterized in that: The transmission member comprises a first arc groove (36) and a second arc groove (37) which are arranged on a side of the baffle plate (35) away from the rotating drum (12); the second arc groove (37) is located above the first arc groove (36) and is connected to the first arc groove (36); the curvature of the first arc groove (36) is consistent with the curvature of the arc surface on the baffle plate (35); one end of the second arc groove (37) away from the first arc groove (36) is close to the center of the baffle plate (35); a driving shaft (38) is horizontally arranged below a side of the rectangular rod (30) close to the baffle plate (35); and one end of the driving shaft (38) away from the rectangular rod (30) is coaxially rotatably connected to a rotating ring (39) located in the first arc groove (36).

5. The dryer exhaust gas filtering device with oil collection function as claimed in claim 3, characterized in that: A second sealing pad (40) is provided at the bottom end of the scraper plate (32) and contacts the bottom of the first collecting bucket (29), and a second compression spring (41) is provided between the second sliding block (34) and the bottom end groove wall of the second sliding groove (33).

6. The dryer exhaust gas filtering device with oil collection function as claimed in claim 2, characterized in that: A first observation window (42) is provided on one side of the barrel wall of the first collecting barrel (29), a second observation window (43) corresponding to the first observation window (42) is provided on the outer wall of the rotating drum (12), a guide plate (44) is obliquely provided on the outer wall of the rotating drum (12), and the guide plate (44) is located above the second observation window (43), and the end of the guide plate (44) away from the rotating drum (12) is inclined toward the direction close to the second observation window (43), the bottom ends of the two support plates (13) are provided with a connecting frame (45), and the bottom ends of the two connecting frames (45) are connected by a placement plate (46), the placement plate (46) is located below the rotating drum (12), and a storage box (47) located below the rotating drum (12) is placed on the placement plate (46).

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