Filtering system applied to polymethyl methacrylate production

Abstract

The invention provides a filtering system applied to polymethyl methacrylate production, and relates to the technical field of polymethyl methacrylate production, the filtering system comprises a filtering box, a box cover, a heating mechanism, a filtering mechanism and a reciprocating discharging mechanism; and the heating mechanism comprises two connecting bases fixedly arranged on the back face of the filter box, a heating box is fixedly arranged on the back faces of the two connecting bases, and heating plates are fixedly arranged on the two sides of the inner wall of the heating box. According to the scheme, the viscous state of the heated polymethyl methacrylate solution can be finally changed, then the polymethyl methacrylate solution can be conveniently filtered, steam generated when water is heated by a heating plate is used for pushing an impeller to rotate, the impeller drives two gear discs and a filtering barrel to rotate through a driving gear, and the filtering effect is improved. The centrifugal force is used for filtering the heated polymethyl methacrylate solution, the filtering efficiency of the polymethyl methacrylate solution can be effectively improved, clean energy is used in the filtering process of the device, pollution to the environment is avoided, and the concept of environmental protection development is met.

Description

Technical Field

[0001] The invention relates to the technical field of polymethyl methacrylate production, and in particular to a filtering system used in polymethyl methacrylate production. Background Art

[0002] Polymethyl methacrylate is a thermoplastic formed by the polymerization of methyl methacrylate monomers. It has good transparency and beautiful appearance. It is a frequently used glass substitute material, also known as acrylic or organic glass. Polymethyl methacrylate production filtration is an important part of the production process of polymethyl methacrylate. It is mainly to remove impurities and particles generated in the production process to improve the quality and purity of the product. A variety of filtration technologies and equipment can be used in the filtration process, such as filter filtration, filter element filtration, membrane filtration, etc.

[0003] Announcement No.: CN220513581U discloses a polymerized methyl methacrylate filtering device, in which a sprocket is driven by a motor to rotate to move the chain, the slider moves along the chain track, the circular plate can move back and forth left and right, and then the scraper can move back and forth left and right on the filter plate, pushing the methyl methacrylate solution to move on the filter plate, expanding the contact area, realizing the filtration of the methyl methacrylate solution, having the function of flattening the methyl methacrylate solution, and improving the filtration efficiency.

[0004] In the related art, polymethyl methacrylate is usually in a viscous slurry state at room temperature. The viscosity of polymethyl methacrylate will be reduced by increasing the temperature, making it more fluid. When filtering polymethyl methacrylate, in order to solve the problem of poor fluidity of polymethyl methacrylate due to its viscosity, the device moves the scraper back and forth on the filter plate to push the polymethyl methacrylate solution to move on the filter plate, expand the contact area between the polymethyl methacrylate and the filter plate, and improve the filtration efficiency of the polymethyl methacrylate solution. However, when the surface of the filter plate is completely distributed with polymethyl methacrylate, the surface area of ​​the filter plate is always the same, so the filtration efficiency of polymethyl methacrylate does not change significantly. Therefore, the device is not convenient for effectively improving the filtration efficiency of polymethyl methacrylate in actual use.

[0005] Therefore, it is necessary to provide a filtration system for polymethyl methacrylate production to solve the above technical problems. Summary of the invention

[0006] The invention provides a filtering system applied to the production of polymethyl methacrylate, which solves the technical problem that the existing polymethyl methacrylate production filtering device in the related art is not convenient for effectively improving the filtering efficiency of polymethyl methacrylate when in use.

[0007] In order to solve the above technical problems, the filtration system for polymethyl methacrylate production provided by the present invention comprises a filtration box, a box cover, a heating mechanism, a filtration mechanism and a reciprocating discharging mechanism;

[0008] The heating mechanism comprises two connecting seats fixedly arranged on the back of the filter box, a heating box is fixedly arranged on the back of the two connecting seats, heating plates are fixedly arranged on both sides of the inner wall of the heating box, a feed elbow is arranged inside the heating box, the front end of the feed elbow sequentially passes through the front of the inner wall of the heating box and the back of the filter box and extends to the inside of the filter box, a feed valve is arranged on the surface of the feed elbow, a steam outlet pipe is connected to the top of the heating box, a steam outlet valve is arranged on the surface of the steam outlet pipe, and a water inlet pipe is connected to the back of the heating box;

[0009] The filtering mechanism comprises a rotating support seat fixedly arranged on the inner wall of the filter box, the inner side of the rotating support seat is rotatably connected to two filter barrels, the surfaces of the tops of the two filter barrels are fixedly provided with gear plates, the inner side of the box cover is vertically rotatably connected to a driving shaft, the top end of the driving shaft is fixedly provided with an impeller, the bottom end of the driving shaft is fixedly provided with a driving gear, the driving gear is meshed with the two gear plates, a protective cover is fixedly arranged on the top of the box cover and on the surface of the impeller, and the front end of the steam outlet pipe is connected with the protective cover;

[0010] The reciprocating discharge mechanism comprises two sliding frames fixedly arranged on the inner wall of the filter box, a slide plate is slidably connected to the inner side of the two sliding frames, a gear plate is fixedly arranged on the top of the slide plate, a flow guide frame is fixedly arranged on the bottom of the slide plate, a rotating rod is vertically rotatably connected to the inner side of the box cover, pulleys are fixedly arranged on the surfaces of the rotating rod and the driving shaft, belts are sleeved on the surfaces of the two pulleys, half gears are fixedly arranged on the surfaces of the rotating rod and the driving shaft and at the bottom of the pulleys, and a discharge pipe is arranged on the inner side of the slide plate and the gear plate;

[0011] The feed elbow is connected to the discharge pipe through a hose, and the two half gears are intermittently meshed with the gear plate during rotation. The front and back sides of the gear plate are provided with gear blocks used in conjunction with the half gears.

[0012] Preferably, the feed elbow is a serpentine elbow, an exhaust fan is provided on the top of the inner wall of the heating box, and the two heating plates are externally connected to a power source.

[0013] Preferably, an annular groove for use with the two filter barrels is provided on the inner side of the rotating support seat, circular grooves are provided on the surfaces of the two filter barrels, and a breathable groove is provided on the surface of the protective cover.

[0014] Preferably, a cleaning mechanism is rotatably connected to the bottom of the inner wall of the filter box, and the cleaning mechanism includes two rotating brackets rotatably connected to the bottom of the inner wall of the filter box, a driving block is fixedly provided at the bottom of the two filter barrels and on the inner side of the two rotating brackets, a cleaning pipe is fixedly provided on the top of the two rotating brackets, and the surfaces of the two cleaning pipes are connected to cleaning nozzles.

[0015] Preferably, an annular groove for cooperating with the driving block is provided on the inner side of the two rotating brackets. When the two filter barrels respectively drive the two driving blocks at the bottom to rotate, the rotation of the two driving blocks will respectively drive the two rotating brackets to swing back and forth. The cross-sectional size of the annular groove in the rotating bracket is 0.2 mm larger than the diameter of the driving block. When the driving block rotates to the right, it will drive the rotating bracket to swing to the right. Conversely, when the driving block rotates to the left, it will drive the rotating bracket to swing to the left. The bottoms of the two cleaning pipes are connected with hoses, and an annular groove for cooperating with the cleaning pipes is provided on the inner side of the rotating support seat.

[0016] Preferably, a cleaning mechanism is fixedly provided on the inner side of the box cover and on the inner side of the filter barrel, and the cleaning mechanism includes a rotating shaft fixedly provided on the inner side of the box cover, three connecting frames are fixedly provided on the surface of the rotating shaft, two cleaning plates are slidably connected to the inner sides of both sides of the three connecting frames, locking bolts are provided on the inner side of the top connecting frame and on the inner sides of the two cleaning plates, and a cleaning brush is fixedly provided on the side where the two cleaning plates are separated.

[0017] Preferably, four first rotating seats are fixedly provided on the surface of the filter box, and the inner sides of the four first rotating seats are rotatably connected with screw members. Four second rotating seats are fixedly provided on the top of the box cover, and locking nuts are threadedly connected on the surfaces of the four screw members and on the tops of the four second rotating seats.

[0018] Preferably, a support seat is provided at the bottom of the heating box, the front of the support seat is fixedly connected to the back of the filter box, a mounting frame is fixedly provided at the bottom of the filter box and the support seat, a discharge pipe is connected to the left side of the filter box, and a handle is fixedly provided on the top of the box cover.

[0019] Compared with the related art, the filtration system applied to the production of polymethyl methacrylate provided by the present invention has the following beneficial effects:

[0020] The water in the heating box is heated by a heating plate, and the polymethyl methacrylate solution in the feed elbow is heated by the principle of heat transfer. The heated polymethyl methacrylate solution will change its viscous state, which makes it easier to filter it. The steam generated when the water is heated by the heating plate drives the impeller to rotate. The impeller drives the two gear plates and the filter barrel to rotate through the driving gear, so that the heated polymethyl methacrylate solution is filtered by centrifugal force, which can effectively improve the filtration efficiency of the polymethyl methacrylate solution. The device uses clean energy during filtration and will not pollute the environment, which is in line with the concept of environmental protection development. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 the structures shown in these drawings without paying creative work.

[0022] Figure 1 The best structural diagram provided by the present invention;

[0023] Figure 2 A schematic diagram of the structure of the rear view provided by the present invention;

[0024] Figure 3 for Figure 1 The structural schematic diagram of the filter box cross-sectional view shown;

[0025] Figure 4 A schematic diagram of the structure of the heating mechanism provided by the present invention;

[0026] Figure 5 A schematic diagram of the structure of the filtering mechanism provided by the present invention;

[0027] Figure 6 for Figure 5 The impeller shown drives the driving gear to rotate through the driving shaft, and the two gear plates drive the two filter barrels to rotate;

[0028] Figure 7 A schematic diagram of the structure of the reciprocating discharging mechanism provided by the present invention;

[0029] Figure 8 for Figure 7 A schematic structural diagram of a bottom view of the guide frame shown;

[0030] Fig. 9 for Figure 7 The schematic diagram of the state in which the driving shaft drives the front half gear to rotate, so that the gear plate drives the slide plate and the discharge pipe to move to the right;

[0031] Fig.10 A schematic diagram of the structure of the cleaning mechanism provided by the present invention;

[0032] Fig.11 for Fig.10 The schematic diagram of the state in which the filter barrel rotates and drives the rotating bracket and the cleaning pipeline to swing;

[0033] Fig.12 A schematic diagram of the structure of the cleaning mechanism provided by the present invention;

[0034] Fig.13 for Fig.12 The enlarged structural diagram of B shown;

[0035] Fig.14 for Figure 1 A is shown as an enlarged schematic diagram of the structure.

[0036] Description of Figure Numbers:

[0037] 1. Filter box; 2. Box cover;

[0038] 3. Heating mechanism; 31. Connecting seat; 32. Heating box; 33. Heating plate; 34. Feed elbow; 35. Feed valve; 36. Steam outlet pipe; 37. Steam outlet valve; 38. Water inlet pipe;

[0039] 4. Filter mechanism; 41. Rotating support seat; 42. Filter barrel; 43. Gear plate; 44. Drive shaft; 45. Impeller; 46. Drive gear; 47. Protective cover;

[0040] 5. Cleaning mechanism; 51. Rotating bracket; 52. Driving block; 53. Cleaning pipeline; 54. Cleaning nozzle;

[0041] 6. Cleaning mechanism; 61. Rotating shaft; 62. Connecting frame; 63. Cleaning plate; 64. Locking bolt; 65. Cleaning brush;

[0042] 7. First rotating seat; 8. Screw member; 9. Second rotating seat; 10. Locking nut; 11. Support seat; 12. Mounting frame; 13. Discharge pipe; 14. Handle;

[0043] 15. reciprocating discharging mechanism; 151. sliding frame; 152. slide plate; 153. gear plate; 154. guide frame; 155. rotating rod; 156. pulley; 157. belt; 158. half gear; 159. discharging pipe.

[0044] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] 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.

[0046] The invention provides a filtering system applied to the production of polymethyl methacrylate.

[0047] First embodiment:

[0048] See also Figures 1 to 6 , a filtering system used in the production of polymethyl methacrylate, comprising a filtering box 1, a box cover 2, a heating mechanism 3, a filtering mechanism 4 and a reciprocating discharging mechanism 15;

[0049] The heating mechanism 3 comprises two connecting seats 31 fixedly arranged on the back of the filter box 1, a heating box 32 is fixedly arranged on the back of the two connecting seats 31, heating plates 33 are fixedly arranged on both sides of the inner wall of the heating box 32, a feed elbow 34 is arranged inside the heating box 32, the front end of the feed elbow 34 sequentially passes through the front of the inner wall of the heating box 32 and the back of the filter box 1 and extends to the inside of the filter box 1, a feed valve 35 is arranged on the surface of the feed elbow 34, a steam outlet pipe 36 is connected to the top of the heating box 32, a steam outlet valve 37 is arranged on the surface of the steam outlet pipe 36, and a water inlet pipe 38 is connected to the back of the heating box 32;

[0050] Please combine Figure 4 : When in use, water is added to the heating box 32 through the water inlet pipe 38, and then the two heating plates 33 are started. When the water in the heating box 32 boils and generates steam, the steam in the heating box 32 can be discharged through the steam outlet pipe 36 by rotating the steam outlet valve 37. When the water in the heating box 32 reaches the specified temperature, the polymethyl methacrylate solution is fed through the feed elbow 34. After the polymethyl methacrylate solution passes through the heating box 32 during the feeding process, the temperature of the polymethyl methacrylate solution rises through heat transfer, thereby improving the fluidity of the polymethyl methacrylate solution;

[0051] Furthermore, when the polymethyl methacrylate solution is heated by the heating plate 33 through the feed elbow 34, after the water in the heating box 32 boils and generates steam, the water in the heating box 32 is kept at a constant temperature by adjusting the heating plate 33, and the flow rate of the polymethyl methacrylate solution in the feed elbow 34 is controlled to adjust the heating time of the polymethyl methacrylate solution in the feed elbow 34. When the heating time of the polymethyl methacrylate solution in the feed elbow 34 is long, the fluidity of the polymethyl methacrylate solution after discharge will also become relatively strong.

[0052] The filtering mechanism 4 comprises a rotating support seat 41 fixedly arranged on the inner wall of the filter box 1, the inner side of the rotating support seat 41 is rotatably connected to two filter barrels 42, the top surfaces of the two filter barrels 42 are fixedly provided with gear plates 43, the inner side of the box cover 2 is vertically rotatably connected to a driving shaft 44, the top end of the driving shaft 44 is fixedly provided with an impeller 45, the bottom end of the driving shaft 44 is fixedly provided with a driving gear 46, the driving gear 46 is meshed with the two gear plates 43, the top of the box cover 2 and the surface of the impeller 45 is fixedly provided with a protective cover 47, and the front end of the steam outlet pipe 36 is connected with the protective cover 47;

[0053] Please combine Figure 5 and Figure 6 : When the water in the heating box 32 is burned and steam is generated, the steam discharged through the steam outlet pipe 36 will blow the impeller 45 to rotate. When the impeller 45 rotates, the driving gear 46 is driven to rotate through the driving shaft 44. The driving gear 46 rotates and then drives the two filter barrels 42 to rotate through the two gear plates 43. When the polymethyl methacrylate solution enters the filter barrel 42 through the feed elbow 34, the centrifugal force generated by the rotation of the filter barrel 42 is used to filter the polymethyl methacrylate solution;

[0054] The reciprocating discharge mechanism 15 comprises two sliding frames 151 fixedly arranged on the inner wall of the filter box 1, a slide plate 152 is slidably connected to the inner side of the two sliding frames 151, a gear plate 153 is fixedly arranged on the top of the slide plate 152, a guide frame 154 is fixedly arranged on the bottom of the slide plate 152, a rotating rod 155 is vertically rotatably connected to the inner side of the box cover 2, a pulley 156 is fixedly arranged on the surface of the rotating rod 155 and the driving shaft 44, a belt 157 is sleeved on the surface of the two pulleys 156, a half gear 158 is fixedly arranged on the surface of the rotating rod 155 and the driving shaft 44 and at the bottom of the pulley 156, and a discharge pipe 159 is arranged on the inner side of the slide plate 152 and the gear plate 153;

[0055] Please combine Figures 7 to 9: The driving shaft 44 rotates, driving the front pulley 156 and the half gear 158 to rotate, and the front half gear 158 rotates, driving the gear plate 153 to move rightward. The front gear plate 153 moves, driving the slide plate 152 and the discharge pipe 159 to move rightward, so that the discharge pipe 159 can discharge the polymethyl methacrylate solution into the right filter barrel 42;

[0056] Furthermore, the front pulley 156 drives the rear pulley 156 to rotate through the belt 157, and the rear pulley 156 drives the rear half gear 158 to rotate through the rotating rod 155. When the front half gear 158 drives the gear plate 153 to move to the rightmost position, the rotation of the rear half gear 158 drives the gear plate 153 to move to the left, thereby driving the slide plate 152 and the discharge pipe 159 to move to the left, and the polymethyl methacrylate solution is discharged to the left filter barrel 42;

[0057] Furthermore, the front pulley 156 and the half gear 158 are driven to rotate by the continuous rotation of the driving shaft 44, the front pulley 156 rotates to drive the rear pulley 156 to rotate through the belt 157, the rear pulley 156 drives the rear half gear 158 to rotate through the rotating rod 155, and the rotation of the two half gears 158 drives the gear plate 153, the slide plate 152 and the discharge pipe 159 to move left and right, so that the two filter barrels 42 are intermittently fed, which can effectively solve the problem of low filtration efficiency caused by continuous feeding of a single filter barrel 42 due to the large viscosity of the polymethyl methacrylate solution;

[0058] Preferably, the flow guide frame 154 is provided to avoid the problem that the material flows out of the filter barrel 42 and cannot be effectively filtered when the two filter barrels 42 are intermittently fed through the discharge pipe 159;

[0059] The feed elbow 34 is connected to the discharge pipe 159 through a hose. The two half gears 158 intermittently mesh with the gear plate 153 during rotation. The front and back sides of the gear plate 153 are provided with gear blocks used in conjunction with the half gears 158.

[0060] The feed elbow 34 is a serpentine elbow, an exhaust fan is provided on the top of the inner wall of the heating box 32, and the two heating plates 33 are externally connected to a power source.

[0061] The inner side of the rotating support seat 41 is provided with an annular groove for use with the two filter barrels 42, the surfaces of the two filter barrels 42 are provided with circular grooves, and the surface of the protective cover 47 is provided with a ventilation groove;

[0062] Furthermore, when the device is working, a steam collection pipe is connected to the air permeable groove of the protective cover 47, and the high-temperature steam is collected by the steam collection pipe and introduced into the polymethyl methacrylate solution production system to recycle the high-temperature steam. When the waste gas and waste water are discharged, they are safely treated by the treatment system before being discharged. The surfaces of the steam outlet pipe 36 and the steam collection pipe are wrapped with high-temperature glass wool felt to insulate the pipes.

[0063] Preferably, for production safety considerations, the heating mechanism 3 needs to be shut down after working for a long time, and it is strictly forbidden to discharge high-temperature steam directly into the air. It is strictly forbidden to work shirtless or in slippers at the production site. Workers need to wear protective clothing and protective gloves before going to work.

[0064] In this embodiment, unlike the existing polymethyl methacrylate solution filtering device, the present case heats the water in the heating box 32 through the heating plate 33, and uses the principle of heat transfer to heat the polymethyl methacrylate solution in the feed elbow 34. The heated polymethyl methacrylate solution will change its viscous state, which is convenient for filtering. The steam generated when the water is heated by the heating plate 33 drives the impeller 45 to rotate, and the impeller 45 then drives the two gear plates 43 and the filter barrel 42 to rotate through the drive shaft 44 and the drive gear 46, so that the heated polymethyl methacrylate solution is filtered by centrifugal force. During the rotation of the drive shaft 44, the pulley 156, the belt 157, the half gear 158, and the gear plate 153 are used to drive the discharge pipe 159 to move back and forth left and right, so that the two filter barrels 42 are intermittently fed, which can effectively improve the filtration efficiency of the polymethyl methacrylate solution. In addition, the device uses clean energy during filtration and will not cause pollution to the environment, which is in line with the concept of environmental protection development.

[0065] Second embodiment:

[0066] See also Figure 3 , Fig.10 and Fig.11 The bottom of the inner wall of the filter box 1 is rotatably connected with a cleaning mechanism 5, and the cleaning mechanism 5 includes two rotating brackets 51 rotatably connected to the bottom of the inner wall of the filter box 1, and a driving block 52 is fixedly provided at the bottom of the two filter barrels 42 and located inside the two rotating brackets 51, and a cleaning pipe 53 is fixedly provided on the top of the two rotating brackets 51, and the surfaces of the two cleaning pipes 53 are connected with cleaning nozzles 54;

[0067] Please combine Fig.10 and Fig.11When the impeller 45 is driven by steam to rotate, and the impeller 45 drives the two filter barrels 42 to rotate through the driving gear 46 and the gear plate 43, the two filter barrels 42 will drive the two driving blocks 52 at the bottom to rotate, and the rotation of the two driving blocks 52 will drive the two rotating brackets 51 and the cleaning pipe 53 to swing back and forth respectively. When the filter barrel 42 needs to be cleaned, the rotation of the filter barrel 42 itself can avoid the occurrence of cleaning blind spots in the filter barrel 42 during the cleaning process. The rotating bracket 51 drives the cleaning pipe 53 to swing, so that water can hit the surface of the filter barrel 42, thereby increasing the impact force of water on the surface of the filter barrel 42, thereby effectively removing impurities on the surface of the filter barrel 42 and in the gaps.

[0068] The inner sides of the two rotating brackets 51 are provided with annular grooves for use with the driving blocks 52. When the two filter barrels 42 respectively drive the two driving blocks 52 at the bottom to rotate, the two rotating brackets 51 are respectively driven to swing back and forth through the rotation of the two driving blocks 52. The cross-sectional size of the annular groove inside the rotating bracket 51 is 0.2 mm larger than the diameter of the driving block 52. When the driving block 52 rotates to the right, it drives the rotating bracket 51 to swing to the right. Conversely, when the driving block 52 rotates to the left, it drives the rotating bracket 51 to swing to the left. The bottoms of the two cleaning pipes 53 are connected with hoses. The inner side of the rotating support seat 41 is provided with annular grooves for use with the cleaning pipes 53.

[0069] Preferably, when the filter barrel 42 needs to be cleaned, water is transported to the cleaning pipe 53 through a hose connected to an external water pump, and the water is sprayed toward the filter barrel 42 through a cleaning nozzle 54 .

[0070] In this embodiment, when the filtration of the polymethyl methacrylate solution is completed and the filter barrel 42 needs to be cleaned, the impeller 45 is driven to rotate by steam, and the impeller 45 drives the two filter barrels 42 to rotate through the driving gear 46 and the gear plate 43. The two filter barrels 42 will drive the two driving blocks 52 at the bottom to rotate, and then the two rotating brackets 51 respectively drive the cleaning pipes 53 to swing back and forth, and the cleaning nozzle 54 is used to spray water to the filter barrel 42 to clean the barrel body and the gaps distributed on the surface. Through the rotation of the filter barrel 42 itself, the cleaning blind spot of the filter barrel 42 can be avoided during the cleaning process. By driving the cleaning pipe 53 to swing by the rotating bracket 51, water can be hit on the surface of the filter barrel 42, thereby increasing the impact force of the water on the surface of the filter barrel 42, thereby effectively removing impurities on the surface and in the gaps of the filter barrel 42.

[0071] Third embodiment:

[0072] See also Figure 3 , Figure 12 to Figure 14A cleaning mechanism 6 is fixedly arranged on the inner side of the box cover 2 and located on the inner side of the filter barrel 42. The cleaning mechanism 6 includes a rotating shaft 61 fixedly arranged on the inner side of the box cover 2. Three connecting frames 62 are fixedly arranged on the surface of the rotating shaft 61. Two cleaning plates 63 are slidably connected to the inner sides of the two sides of the three connecting frames 62. A locking bolt 64 is arranged on the inner side of the top connecting frame 62 and located on the inner side of the two cleaning plates 63. A cleaning brush 65 is fixedly arranged on the separated side of the two cleaning plates 63.

[0073] Please combine Fig.12 and Fig.13 When the polymethyl methacrylate solution is filtered by the filter barrel 42, the steam drives the impeller 45 to rotate, and the impeller 45 drives the two filter barrels 42 to rotate through the driving gear 46 and the gear plate 43, while the cleaning plate 63 and the cleaning brush 65 are fixedly arranged, and the rotation of the filter barrel 42 can make the cleaning brush 65 clean the gap inside the filter barrel 42 at all times, thereby avoiding the problem of low filtering efficiency caused by clogging of the gap during the filtering process;

[0074] Furthermore, when the filter barrel 42 needs to be cleaned, the impeller 45 is driven to rotate by steam, and the impeller 45 drives the two filter barrels 42 to rotate through the driving gear 46 and the gear plate 43. Under the rotation of the two filter barrels 42, the cleaning brush 65 is used to clean the internal gap of the filter barrel 42. The water flow sprayed by the cleaning nozzle 54 can rinse the impurities cleaned by the cleaning brush 65, thereby further improving the cleaning effect of the filter barrel 42.

[0075] Preferably, two groups of cleaning mechanisms 6 are provided, which are respectively arranged inside the two filter barrels 42. By loosening the locking bolts 64, the working heights of the cleaning plates 63 and the cleaning brushes 65 can be adjusted.

[0076] Four first rotating seats 7 are fixedly arranged on the surface of the filter box 1, and screw members 8 are rotatably connected to the inner sides of the four first rotating seats 7. Four second rotating seats 9 are fixedly arranged on the top of the box cover 2, and locking nuts 10 are threadedly connected to the surfaces of the four screw members 8 and at the tops of the four second rotating seats 9;

[0077] Preferably, the four locking nuts 10 are manually screwed upwards, and then the box cover 2 and the cleaning mechanism 6 can be disassembled.

[0078] A support seat 11 is provided at the bottom of the heating box 32, the front of the support seat 11 is fixedly connected to the back of the filter box 1, a mounting frame 12 is fixedly provided at the bottom of the filter box 1 and the support seat 11, a discharge pipe 13 is connected to the left side of the filter box 1, and a handle 14 is fixedly provided on the top of the box cover 2;

[0079] Preferably, by setting the discharge pipe 13 , the filtered polymethyl methacrylate solution can be discharged, and the water after cleaning the filter box 1 and the filter barrel 42 can also be discharged, and it is only necessary to change the connecting pipe of the discharge pipe 13 .

[0080] In this embodiment, when the polymethyl methacrylate solution is filtered by rotating the filter barrel 42, the gaps inside the filter barrel 42 can be cleaned at all times by a fixed cleaning brush 65, thereby avoiding the problem of low filtration efficiency caused by clogging of the gaps during the filtration process. When the filter barrel 42 is cleaned by the cleaning nozzle 54, the cleaning effect of the cleaning nozzle 54 on the gaps in the filter barrel 42 can be improved by the rotation of the filter barrel 42 and the fixed cleaning brush 65.

[0081] Please refer to Figures 1 to 14 The working principle of the filtration system for polymethyl methacrylate production provided by the present invention is as follows:

[0082] Step S1, firstly, the device is installed on a flat ground using the mounting frame 12, then water is injected into the heating box 32 through the water inlet pipe 38, and the two heating plates 33 are started. When the water in the heating box 32 is boiled and steam is generated, the steam in the heating box 32 is discharged through the steam outlet pipe 36 by rotating the steam outlet valve 37, and the impeller 45 is driven to rotate by the steam, and then the polymethyl methacrylate solution is transported to the feed elbow 34 by a liquid pump. During the transportation of the polymethyl methacrylate solution in the feed elbow 34, the polymethyl methacrylate solution is heated by heat exchange and heat transfer to improve the fluidity of the polymethyl methacrylate solution;

[0083] Step S2, the heated polymethyl methacrylate solution is discharged into two filter barrels 42 through the feed elbow 34, the hose and the discharge pipe 159, and the steam discharged from the steam outlet pipe 36 drives the impeller 45 to rotate. The rotation of the impeller 45 drives the drive shaft 44 to rotate the drive gear 46, and the rotation of the drive gear 46 drives the two filter barrels 42 to rotate respectively through the two gear plates 43, so as to filter the polymethyl methacrylate solution by using the centrifugal force generated when the filter barrels 42 rotate;

[0084] The front pulley 156 and the half gear 158 are driven to rotate by the continuous rotation of the driving shaft 44. The front pulley 156 drives the rear pulley 156 to rotate through the belt 157. The rear pulley 156 drives the rear half gear 158 to rotate through the rotating rod 155. The rotation of the two half gears 158 drives the gear plate 153, the slide plate 152 and the discharge pipe 159 to move left and right, thereby intermittently feeding the two filter barrels 42.

[0085] Step S3, when the polymethyl methacrylate solution is filtered by the filter barrel 42, the steam drives the impeller 45 to rotate, and the impeller 45 drives the two filter barrels 42 to rotate through the driving gear 46 and the gear plate 43, while the cleaning plate 63 and the cleaning brush 65 are fixedly arranged, and the rotation of the filter barrel 42 can make the cleaning brush 65 clean the gap inside the filter barrel 42 at all times, thereby avoiding the problem of low filtering efficiency caused by clogging of the gap during the filtering process;

[0086] Step S4, when the filtration of the polymethyl methacrylate solution is completed and the filter barrel 42 needs to be cleaned, the steam drives the impeller 45 to rotate, and the impeller 45 drives the two filter barrels 42 to rotate through the driving gear 46 and the gear plate 43. The two filter barrels 42 drive the two driving blocks 52 at the bottom to rotate, and the rotation of the two driving blocks 52 drives the two rotating brackets 51 and the cleaning pipe 53 to swing back and forth respectively, and the cleaning nozzle 54 is used to swing and spray water to clean the filter barrel 42;

[0087] As the two filter barrels 42 rotate, the fixed cleaning brush 65 can clean the internal gaps of the filter barrel 42, and the water flow sprayed by the swinging cleaning nozzle 54 can flush away the impurities cleaned by the cleaning brush 65, thereby further improving the cleaning effect of the filter barrel 42.

[0088] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A filtration system for the production of polymethyl methacrylate, characterized in that: It includes a filter box, a box cover, a heating mechanism, a filter mechanism and a reciprocating discharge mechanism; The heating mechanism comprises two connecting seats fixedly arranged on the back of the filter box, a heating box is fixedly arranged on the back of the two connecting seats, heating plates are fixedly arranged on both sides of the inner wall of the heating box, a feed elbow is arranged inside the heating box, the front end of the feed elbow sequentially passes through the front of the inner wall of the heating box and the back of the filter box and extends to the inside of the filter box, a feed valve is arranged on the surface of the feed elbow, a steam outlet pipe is connected to the top of the heating box, a steam outlet valve is arranged on the surface of the steam outlet pipe, and a water inlet pipe is connected to the back of the heating box; The filtering mechanism comprises a rotating support seat fixedly arranged on the inner wall of the filter box, the inner side of the rotating support seat is rotatably connected to two filter barrels, the surfaces of the tops of the two filter barrels are fixedly provided with gear plates, the inner side of the box cover is vertically rotatably connected to a driving shaft, the top end of the driving shaft is fixedly provided with an impeller, the bottom end of the driving shaft is fixedly provided with a driving gear, the driving gear is meshed with the two gear plates, a protective cover is fixedly arranged on the top of the box cover and on the surface of the impeller, and the front end of the steam outlet pipe is connected with the protective cover; The reciprocating discharge mechanism comprises two sliding frames fixedly arranged on the inner wall of the filter box, a slide plate is slidably connected to the inner side of the two sliding frames, a gear plate is fixedly arranged on the top of the slide plate, a flow guide frame is fixedly arranged on the bottom of the slide plate, a rotating rod is vertically rotatably connected to the inner side of the box cover, pulleys are fixedly arranged on the surfaces of the rotating rod and the driving shaft, belts are sleeved on the surfaces of the two pulleys, half gears are fixedly arranged on the surfaces of the rotating rod and the driving shaft and at the bottom of the pulleys, and a discharge pipe is arranged on the inner side of the slide plate and the gear plate; The feed elbow is connected to the discharge pipe through a hose, and the two half gears are intermittently meshed with the gear plate during rotation. The front and back sides of the gear plate are provided with gear blocks used in conjunction with the half gears.

2. The filtration system for polymethyl methacrylate production according to claim 1, characterized in that: The feed elbow is a serpentine elbow, an exhaust fan is arranged on the top of the inner wall of the heating box, and the two heating plates are externally connected to a power source.

3. The filtration system for polymethyl methacrylate production according to claim 1, characterized in that: An annular groove for use with the two filter barrels is provided on the inner side of the rotating support seat, circular grooves are provided on the surfaces of the two filter barrels, and a ventilation groove is provided on the surface of the protective cover.

4. The filtration system for polymethyl methacrylate production according to claim 1, characterized in that: The bottom of the inner wall of the filter box is rotatably connected with a cleaning mechanism, and the cleaning mechanism includes two rotating brackets rotatably connected to the bottom of the inner wall of the filter box, and driving blocks are fixedly provided at the bottom of the two filter barrels and on the inner sides of the two rotating brackets, and cleaning pipes are fixedly provided on the tops of the two rotating brackets, and the surfaces of the two cleaning pipes are connected to cleaning nozzles.

5. The filtration system for polymethyl methacrylate production according to claim 4, characterized in that: The inner sides of the two rotating brackets are provided with annular grooves for use with the driving blocks. When the two filter barrels respectively drive the two driving blocks at the bottom to rotate, the rotation of the two driving blocks will drive the two rotating brackets to swing back and forth. The cross-sectional size of the annular groove in the rotating bracket is 0.2 mm larger than the diameter of the driving block. When the driving block rotates to the right, it will drive the rotating bracket to swing to the right. Conversely, when the driving block rotates to the left, it will drive the rotating bracket to swing to the left. The bottoms of the two cleaning pipes are connected with hoses, and the inner side of the rotating support seat is provided with annular grooves for use with the cleaning pipes.

6. The filtration system for polymethyl methacrylate production according to claim 1, characterized in that: A cleaning mechanism is fixedly provided on the inner side of the box cover and on the inner side of the filter barrel, and the cleaning mechanism includes a rotating shaft fixedly provided on the inner side of the box cover, and three connecting frames are fixedly provided on the surface of the rotating shaft, and two cleaning plates are slidably connected to the inner sides of both sides of the three connecting frames, and locking bolts are provided on the inner side of the top connecting frame and on the inner sides of the two cleaning plates, and a cleaning brush is fixedly provided on the separated sides of the two cleaning plates.

7. The filtration system for polymethyl methacrylate production according to claim 1, characterized in that: Four first rotating seats are fixedly provided on the surface of the filter box, and the inner sides of the four first rotating seats are rotatably connected with screw members. Four second rotating seats are fixedly provided on the top of the box cover, and locking nuts are threadedly connected on the surfaces of the four screw members and on the tops of the four second rotating seats.

8. The filtration system for polymethyl methacrylate production according to claim 1, characterized in that: A support seat is provided at the bottom of the heating box, the front of the support seat is fixedly connected to the back of the filter box, a mounting frame is fixedly provided at the bottom of the filter box and the support seat, a discharge pipe is connected to the left side of the filter box, and a handle is fixedly provided on the top of the box cover.

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