A device for removing impurities in the production of methyl ethyl carbonate

Abstract

The application belongs to the technical field of impurity filtering equipment, and discloses a production impurity filtering device for methyl ethyl carbonate, which has the following technical points: a box body is arranged, a filter plate is arranged in the inner cavity of the box body, the surface of the filter plate is provided with uniformly distributed filter eyes, two opposite side walls of the box body are respectively provided with an impurity discharging port, an impurity discharging plate is rotatably arranged in the impurity discharging port, a first positioning mechanism is arranged in the inner cavity of the box body, the first positioning mechanism comprises a lifting assembly and a turnover assembly, a second positioning mechanism that cooperates with the impurity discharging plate is arranged in the inner cavity of the box body, the second positioning mechanism comprises an upper opening and closing assembly and a lower opening and closing assembly, a cleaning mechanism is arranged on the top of the inner cavity of the box body, the cleaning mechanism comprises a scraping assembly and a blowing assembly, the relative positions between the filter plate and the two groups of impurity discharging plates can be conveniently adjusted through the cooperation of the upper opening and closing assembly and the lower opening and closing assembly, the impurities cleaned can be automatically transported to the outside of the box body by the impurity discharging plates, and the cleaning efficiency of the filter plate is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, specifically a filtration device for the production of ethyl methyl carbonate. Background Technology

[0002] Ethyl methyl carbonate, also known as ethyl methyl carbonate, is a colorless, transparent liquid, insoluble in water. It can be used in organic synthesis and is an excellent solvent for lithium-ion battery electrolytes. Ethyl methyl carbonate should be stored in a cool, ventilated, and dry place, and transported and stored according to regulations for flammable chemicals.

[0003] In the production process of methyl ethyl carbonate, filtration devices are often used to filter out impurities in the methyl ethyl carbonate, thereby improving the purity of the methyl ethyl carbonate and resulting in better quality of the finished product.

[0004] Existing filtration equipment typically uses filter screens or filter cloths to screen impurities in methyl ethyl carbonate liquid. As impurities accumulate, they can clog the screens or cloths, affecting their continuous filtration effect. This requires staff to regularly remove and clean the screens or cloths. After cleaning the impurities from the screens or cloths, staff must reinstall them on the filtration equipment for further impurity removal. This results in low overall filtration efficiency and poor performance. Summary of the Invention

[0005] The purpose of this invention is to provide a filter apparatus for the production of ethyl methyl carbonate, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A filter device for the production of methyl ethyl carbonate includes a housing. An inlet pipe is provided on one side wall of the housing, and a drain pipe is provided at the bottom of the other side wall. A filter plate is installed inside the housing, with uniformly distributed filter holes on its surface. Drainage ports are respectively opened on opposite side walls of the housing, and drainage plates are rotatably installed within these ports. The opposite sides of the two drainage plates are fitted together within the housing cavity. A first positioning mechanism is provided within the housing cavity to cooperate with the filter plate. The first positioning mechanism includes a lifting component and a tilting component. The lifting component is located between the two opposite inner side walls of the housing and connected to the filter plate, controlling the vertical movement of the filter plate within the housing cavity. The tilting component is located within the housing cavity and connected to the lifting component; when the filter plate moves vertically, the tilting component, in cooperation with the lifting component, controls the horizontal movement of the filter plate. The filter plate can switch between a vertical and a horizontal state. The inner cavity of the housing is equipped with a second positioning mechanism that cooperates with the impurity removal plate. This second positioning mechanism includes an upper opening and closing component and a lower opening and closing component. The upper opening and closing component is located on the surface of the filter plate. When the filter plate remains vertical and moves upward, the upper opening and closing component controls the two sets of impurity removal plates to rotate to the outside of the filter plate. The lower opening and closing component is located in the inner cavity of the housing and connected to the filter plate. When the filter plate remains vertical and moves downward, the lower opening and closing component controls the two sets of impurity removal plates to rotate to the outside of the filter plate. The top of the housing is equipped with a cleaning mechanism that cooperates with the filter plate. This cleaning mechanism includes a scraping component and a blowing component. The scraping component and the blowing component are located at the top of the housing and above the impurity removal plate. The scraping component is used to clean impurities attached to the surface of the filter plate, and the blowing component is used to blow impurities attached to the filter holes to the surface of the filter plate.

[0007] As a further aspect of the present invention: the lifting assembly includes vertical grooves respectively opened on the two inner side walls opposite to each other of the housing, a sliding block is slidably installed in the vertical groove, a bearing rod is rotatably installed on the two sets of sliding blocks, the filter plate is fixedly installed on the surface of the bearing rod, a first threaded rod is rotatably installed in the vertical groove, the first threaded rod is threadedly connected to the sliding block, and the top end of the first threaded rod extends to the outside of the housing and is connected to a first motor.

[0008] As a further embodiment of the present invention: the flipping assembly includes side grooves respectively opened on both sides of the filter plate, a positioning toothed disc is fixedly installed on the surface of the bearing rod, the positioning toothed disc is located in the side groove, and a positioning rack is fixedly installed on the inner side wall of the box, the positioning rack meshing with the positioning toothed disc.

[0009] As a further aspect of the present invention: the upper opening and closing assembly includes baffles fixedly installed on the upper and lower sides of the filter plate, and the baffles are U-shaped structures.

[0010] As a further embodiment of the present invention: the lower opening and closing assembly includes a fixed rod fixedly installed on the two inner side walls of the housing respectively above the discharge plate, a guide wheel rotatably installed in the middle of the fixed rod, a positioning rope fixedly installed on the surface of the discharge plate, the end of the positioning rope away from the discharge plate passing through the guide wheel and passing through to the end of the fixed rod, the end of the positioning rope away from the discharge plate extending to the outside of the fixed rod and fixedly installed with a positioning block, the positioning block being made of magnetic material, and magnetic sheets cooperating with the positioning blocks being fixedly installed on the two opposite sides of the filter plate respectively.

[0011] As a further aspect of the present invention: the scraping assembly includes two sets of base plates fixedly installed on the two opposite inner side walls of the housing, a second threaded rod rotatably installed between the base plate and the top wall of the housing, a bearing block threadedly connected to the surface of the second threaded rod, the bearing block slidingly connected to the inner side wall of the housing in the vertical direction, two sets of bearing blocks oppositely distributed together fixedly connected to a scraper, a synchronous disc fixedly installed on the surface of the second threaded rod, multiple sets of synchronous discs connected together to a synchronous belt, and the top end of one set of second threaded rods extending to the outside of the housing and connected to a second motor.

[0012] As a further embodiment of the present invention: the purging assembly includes two sets of air jet pipes fixedly installed together with bearing blocks, the air jet pipe on one side of the filter plate is above the scraper, the air jet pipe on the other side of the filter plate is below the scraper, an air pump is fixedly installed on the side wall of the housing, the output shaft of the air pump is connected to an air guide pipe, the air guide pipe extends into the inner cavity of the housing and is connected to the air jet pipe.

[0013] As a further aspect of the present invention: a cleaning mechanism that cooperates with the filter plate is provided at the top of the box body. The cleaning mechanism includes a water tank and a flow guiding component. The water tank is fixedly installed at the top of the box body. The bottom of the water tank is provided with a funnel shape and extends to the top of the box body. The flow guiding component is located at the bottom of the water tank and is used to control the water in the water tank to flow quantitatively to the surface of the filter plate.

[0014] As a further aspect of the present invention: the flow guiding component includes a water spraying groove opened in the bottom wall of the water tank, a support rod is fixedly installed in the bottom wall of the water tank, a sealing plate is slidably installed on multiple sets of support rods, a top plate is fixedly installed on the top of multiple sets of support rods, a compression spring is fixedly installed on the surface of the top plate, and the extension end of the compression spring is connected to the sealing plate.

[0015] As a further embodiment of the present invention: the two inner sidewalls opposite to each other of the box are respectively provided with arc-shaped guide grooves, and the sidewall of the waste discharge plate is fixedly installed with guide protrusions, which are slidably installed in the guide grooves.

[0016] Compared with the prior art, the beneficial effect of the present invention is that by setting the lifting component and the flipping component to cooperate with each other, the position and height of the filter plate can be easily adjusted.

[0017] By setting up the upper and lower opening and closing components to work together, the relative position between the filter plate and the two sets of impurity discharge plates can be easily adjusted. Furthermore, the impurity discharge plates can be controlled to automatically transport the cleaned impurities to the outside of the housing, effectively improving the cleaning efficiency of the filter plate. This solves the problem that currently, staff need to periodically remove and clean the filter screen or filter cloth, and then reinstall it on the filtration equipment after the impurities on the surface have been cleaned, resulting in low overall filtration efficiency and poor performance. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a filter device for producing ethyl methyl carbonate provided in an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the casing in a filter device for producing methyl ethyl carbonate provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic front view of a filter device for producing ethyl methyl carbonate provided in an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the scraper and its connection structure in a filter device for producing methyl ethyl carbonate provided in an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the filter plate and its connection structure in a filter device for producing methyl ethyl carbonate provided in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the impurity removal plate and its connection structure in a filter device for the production of methyl ethyl carbonate provided in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the jet pipe and its connection structure in a filter device for the production of methyl ethyl carbonate provided in an embodiment of the present invention.

[0025] Figure 8 for Figure 3 A magnified structural diagram of A in the middle.

[0026] Figure 9 for Figure 3 A magnified structural diagram of B in the diagram.

[0027] The components are: 1-box body, 11-inlet pipe, 12-outlet pipe, 2-filter plate, 21-filter eyelet, 3-first positioning mechanism, 31-lifting assembly, 311-vertical groove, 312-first threaded rod, 313-first motor, 314-sliding block, 315-bearing rod, 32-flipping assembly, 321-side groove, 322-positioning gear plate, 323-positioning rack, 4-exhaust port, 5-exhaust plate, 61-stop bar, 62-lower opening and closing assembly, 621-fixed rod, 622-guide wheel, 623-positioning block, 624-positioning rope, 625-magnetic sheet. 7-Cleaning mechanism, 71-Scraping assembly, 711-Base plate, 712-Second threaded rod, 713-Synchronous disc, 714-Synchronous belt, 715-Bearing block, 716-Scraper, 717-Second motor, 72-Blowing assembly, 721-Air pump, 722-Air guide pipe, 723-Air jet pipe, 8-Cleaning mechanism, 81-Water tank, 82-Flow guide assembly, 821-Water spray tank, 822-Support rod, 823-Top plate, 824-Compression spring, 825-Sealing plate, 9-Guide groove, 10-First magnetic positioning strip, 101-Second magnetic positioning strip. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0029] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6The diagram shown illustrates the structure of a filter device for producing methyl ethyl carbonate according to an embodiment of the present invention. The device includes a housing 1, with an inlet pipe 11 on one side wall and a drain pipe 12 at the bottom of the other side wall. A filter plate 2 is installed inside the housing 1, with uniformly distributed filter holes 21 on its surface. Drainage ports 4 are respectively opened on opposite side walls of the housing 1, and drainage plates 5 are rotatably installed within the drainage ports 4. The two sets of drainage plates 5 are fitted together on opposite sides within the housing 1. The inner cavity of the housing 1 is provided with a first positioning mechanism 3 that cooperates with the filter plate 2. The first positioning mechanism 3 includes a lifting component 31 and a flipping component 32. The lifting component 31 is located between two opposing inner side walls of the housing 1 and is connected to the filter plate 2. The lifting component 31 is used to control the vertical movement of the filter plate 2 within the inner cavity of the housing 1. The flipping component 32 is located within the inner cavity of the housing 1 and is connected to the lifting component 31. When the filter plate 2 moves vertically, the flipping component 32 controls the filter plate 2 to switch between a horizontal and a vertical state by cooperating with the lifting component 31. The inner cavity of the housing 1 is provided with a second positioning mechanism that cooperates with the discharge plate 5. The second positioning mechanism includes an upper opening and closing component and a lower opening and closing component 62. The upper opening and closing component is located on the surface of the filter plate 2. When the filter plate 2 is in a vertical state and moves upward, the upper opening and closing component controls the two sets of discharge plates 5 to rotate to the outside of the filter plate 2 respectively. The lower opening and closing component 62 is located within the inner cavity of the housing 1 and is connected to the filter plate 2. The filter plate 2 remains in a vertical state. When the filter plate 2 moves downward, the lower opening and closing component 62 controls the two sets of impurity discharge plates 5 to rotate to the outside of the filter plate 2. The top of the housing 1 is provided with a cleaning mechanism 7 that cooperates with the filter plate 2. The cleaning mechanism 7 includes a scraping component 71 and a blowing component 72. The scraping component 71 and the blowing component 72 are respectively located at the top of the housing 1 and above the impurity discharge plates 5. The scraping component 71 is used to clean the impurities attached to the surface of the filter plate 2, and the blowing component 72 is used to blow the impurities attached to the filter holes 21 to the surface of the filter plate 2.

[0031] Initially, the filter plate 2 is positioned vertically between the inlet pipe 11 and the outlet pipe 12. During the filtration process, the filter plate 2 remains horizontal within the cavity of the housing 1. Two sets of impurity removal plates 5 are attached to each other at one end of the cavity of the housing 1 to form a conical slope structure. The methyl ethyl carbonate solution is introduced into the cavity of the housing 1 through the inlet pipe 11. The methyl ethyl carbonate solution passes through the filter plate 2 and is then discharged through the outlet pipe 12. When the methyl ethyl carbonate solution passes through the filter holes 21 on the surface of the filter plate 2, impurities mixed in the methyl ethyl carbonate solution will adhere to the surface of the filter holes 21. When the impurities adhering to the surface of filter plate 2 and filter eyelet 21 reach a certain level, the inlet pipe 11 stops supplying methyl ethyl carbonate solution. The lifting component 31 controls the filter plate 2 to move vertically upward. While the filter plate 2 is moving vertically upward, the flipping component 32 controls the filter plate 2 to rotate to a vertical position. The vertically positioned filter plate 2 continues to move upward. When the filter plate 2 passes between the two sets of impurity removal plates 5, the upper opening and closing component controls the two sets of impurity removal plates 5 to rotate to both sides of the filter plate 2, effectively preventing the impurity removal plates 5 from contacting the filter plate 2. If the impurity removal plates 5 contact the filter plate 2, they will directly scrape off the impurities adhering to the surface of the filter plate 2. The scraped-off impurities will fall to the bottom of the housing 1, affecting the subsequent use of the equipment. After the filter plate 2 moves to above the impurity removal plates 5, the two sets of impurity removal plates 5 rotate back to their original positions. At this time, the two sets of impurity removal plates 5 are in contact with each other at one end of the inner cavity of the housing 1. The filter plate 2 remains vertical above the impurity discharge plate 5. The scraping assembly 71 can efficiently scrape and clean the impurities attached to the surface of the filter plate 2. At the same time, the blowing assembly 72 can blow high-pressure air towards the filter plate 2. The high-pressure air can conveniently blow the impurities attached to the filter holes 21 to the surface of the filter plate 2 or the outside of the filter plate 2. The scraping assembly 71 and the blowing assembly 72 work together to thoroughly clean the impurities attached to the surface of the filter plate 2 and the filter holes 21. The impurities cleaned off the surface of the filter plate 2 fall onto the surface of the impurity discharge plate 5. Since the impurity discharge plate 5 has an inclined structure, the impurities on the surface of the impurity discharge plate 5 can be automatically discharged to the outside of the housing 1 through the impurity discharge port 4. After the impurities on the surface of the filter plate 2 are cleaned, the lifting assembly 32 controls the filter plate 2 to move vertically downward. When the bottom end of the filter plate 2 is about to contact the impurity discharge plate 5, the lower opening and closing assembly 62 controls the two sets of impurity discharge plates 5 to rotate in opposite directions. At this time, a gap is created between the two sets of impurity discharge plates 5, and the filter plate 2 can move downward stably between the two sets of impurity discharge plates 5. After the filter plate 2 has moved to below the impurity discharge plate 5, the two sets of impurity discharge plates 5 are pressed together again at one end in the inner cavity of the box 1. The filter plate 2 continues to move downward, and the flipping assembly 32 controls the filter plate 2 to rotate again to a horizontal state between the liquid inlet pipe 11 and the liquid outlet pipe 12. The filter plate 2 can then filter and remove impurities from the methyl ethyl carbonate solution delivered by the liquid inlet pipe 11 again.

[0032] like Figure 2 , Figure 3, Figure 5 , Figure 7 As shown, in a preferred embodiment of the present invention, the lifting assembly 31 includes vertical grooves 311 respectively opened on the two inner sidewalls opposite to the housing 1. Sliding blocks 314 are slidably installed in the vertical grooves 311. The two sets of sliding blocks 314 are rotatably installed on the bearing rod 315. The filter plate 2 is fixedly installed on the surface of the bearing rod 315. A first threaded rod 312 is rotatably installed in the vertical grooves 311. The first threaded rod 312 is threadedly connected to the sliding block 314. The top end of the first threaded rod 312 extends to the outside of the housing 1 and is connected to a first motor 313.

[0033] The first threaded rod 312 supports and positions the sliding block 314 within the vertical groove 311. The two sets of sliding blocks 314 cooperate with the bearing rod 315 to stably support and position the filter plate 2 within the inner cavity of the housing 1. When it is necessary to clean the impurities on the surface of the filter plate 2, the first motor 313 drives the first threaded rod 312 to rotate. The first threaded rod 312 controls the sliding block 314 to move within the vertical groove 311. The sliding block 314 cooperates with the bearing rod 315 to control the filter plate 2 to move vertically within the inner cavity of the housing 1.

[0034] like Figure 2 , Figure 3 , Figure 5 As shown, in a preferred embodiment of the present invention, the flipping assembly 32 includes side grooves 321 respectively opened on both sides of the filter plate 2, a positioning toothed disc 322 is fixedly installed on the surface of the bearing rod 315, the positioning toothed disc 322 is located in the side grooves 321, and a positioning rack 323 is fixedly installed on the inner side wall of the housing 1, the positioning rack 323 meshing with the positioning toothed disc 322.

[0035] Two sets of sliding blocks 314 drive the bearing rod 315 and the filter plate 2 to move vertically. When the bearing rod 315 moves upward, it drives the positioning toothed disc 322 to move upward synchronously. When the positioning toothed disc 322 contacts the positioning rack 323, the positioning toothed disc 322 rolls along the surface of the positioning rack 323. The positioning toothed disc 322 drives the bearing rod 315 and the filter plate 2 to rotate synchronously. When the filter plate 2 rotates 90 degrees to a vertical position, the positioning toothed disc 322 and the positioning rack 323 separate. When the vertically positioned filter plate 2 moves vertically downward, the positioning toothed disc 322 rolls along the surface of the positioning rack 323. The positioning toothed disc 322 and the bearing rod 315 cooperate to control the filter plate 2 to rotate from a vertical position to a horizontal position, so that the filter plate 2 can continue to filter and remove impurities from the methyl ethyl carbonate solution.

[0036] like Figure 3 , Figure 5As shown, in a preferred embodiment of the present invention, the upper opening and closing assembly includes baffles 61 fixedly installed on the upper and lower sides of the filter plate 2, and the baffles 61 are U-shaped structures.

[0037] When the vertically positioned filter plate 2 moves upward, it causes the baffles 61 on both sides to move upward simultaneously. When the top of the filter plate 2 contacts the discharge plate 5, the filter plate 2 pushes the discharge plate 5 to rotate outward. The baffles 61 further restrict the relative position of the discharge plate 5 and the filter plate 2. The end of the discharge plate 5 facing the filter plate 2 directly contacts the baffles 61, which effectively prevents the discharge plate 5 from contacting the filter plate 2. After the filter plate 2 has moved above the discharge plate 5, the baffles 61 release the restriction on the discharge plate 5, and the two sets of discharge plates 5 are put back together.

[0038] like Figure 3 , Figure 5 , Figure 6 , Figure 9 As shown, in a preferred embodiment of the present invention, the lower opening and closing assembly 62 includes a fixing rod 621 fixedly installed on the two opposing inner side walls of the housing 1 above the discharge plate 5. A guide wheel 622 is rotatably installed in the middle of the fixing rod 621. A positioning rope 624 is fixedly installed on the surface of the discharge plate 5. One end of the positioning rope 624 away from the discharge plate 5 passes through the guide wheel 622 and passes to the end of the fixing rod 621. The other end of the positioning rope 624 away from the discharge plate 5 extends to the outside of the fixing rod 621 and is fixedly installed with a positioning block 623. The positioning block 623 is made of magnetic material. Magnetic sheets 625 that cooperate with the positioning blocks 623 are fixedly installed on the two opposite sides of the filter plate 2.

[0039] The fixing rod 621 supports and positions the guide wheel 622 and the positioning block 623. When the filter plate 2 moves upward on the impurity removal plate 5, the magnetic sheet 625 at the bottom of the side wall of the filter plate 2 is connected to the positioning block 623 as a whole by magnetic attraction. After the impurities on the surface of the filter plate 2 are cleaned and the filter plate 2 moves vertically downward, the filter plate 2 drives the magnetic sheet 625 to move downward synchronously. The magnetic sheet 625 drives the positioning block 623 to move downward synchronously. The positioning block 623 and the positioning rope 624 cooperate with each other to control the two sets of impurity removal plates 5 to rotate beyond the outside of the filter plate 2. At this time, a gap is generated between the two sets of impurity removal plates 5. The filter plate 2 can pass through the gap and move downward between the two sets of impurity removal plates 5, effectively avoiding interference between the filter plate 2 and the impurity removal plate 5 when moving downward. As the filter plate 2 continues to move downward, the magnetic sheet 625 and the positioning block 623 separate from each other. The positioning block 623 moves back to its original position. After the filter plate 2 moves as a whole to below the impurity discharge plate 5, the two sets of impurity discharge plates 5 are once again attached together.

[0040] like Figure 2 , Figure 3 , Figure 4 , Figure 7 As shown, in a preferred embodiment of the present invention, the scraping assembly 71 includes two sets of base plates 711 fixedly installed on the two opposing inner sidewalls of the housing 1. A second threaded rod 712 is rotatably installed between the base plate 711 and the top wall of the housing 1. A bearing block 715 is threadedly connected to the surface of the second threaded rod 712. The bearing block 715 is slidably connected to the inner sidewall of the housing 1 in the vertical direction. The two sets of bearing blocks 715 are fixedly connected to a scraper 716. A synchronous disc 713 is fixedly installed on the surface of the second threaded rod 712. Multiple sets of synchronous discs 713 are connected to a synchronous belt 714. The top end of one set of second threaded rods 712 extends to the outside of the housing 1 and is connected to a second motor 717.

[0041] When the filter plate 2 moves vertically above the two sets of impurity removal plates 5, the two sets of scrapers 716 are located on both sides of the filter plate 2. The second motor 717 drives a set of second threaded rods 712 to rotate, which in turn drives the synchronous discs 713 to rotate. The multiple sets of synchronous discs 713 and synchronous belts 714 cooperate with each other to control the rotation of multiple sets of second threaded rods 712. The multiple sets of second threaded rods 712 cooperate with the bearing blocks 715 to control the scrapers 716 to move vertically on both sides of the filter plate 2. The scrapers 716 can efficiently clean the impurities attached to the surface of the filter plate 2.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 As shown, in a preferred embodiment of the present invention, the purging assembly 72 includes two sets of air jet pipes 723 fixedly installed together with two sets of support blocks 715. The air jet pipe 723 on one side of the filter plate 2 is located above the scraper 716, and the air jet pipe 723 on the other side of the filter plate 2 is located below the scraper 716. An air pump 721 is fixedly installed on the side wall of the housing 1. The output shaft of the air pump 721 is connected to an air guide pipe 722. The air guide pipe 722 extends into the inner cavity of the housing 1 and communicates with the air jet pipe 723.

[0043] When the support block 715 moves vertically, it drives the jet pipe 723 to move synchronously on the outside of the filter plate 2. The air pump 721 generates high-pressure air and delivers it into the jet pipe 723. The jet pipe 723 can conveniently blow the impurities attached to the surface of the deep filter hole 21 to the surface of the filter plate 2. The two sets of jet pipes 723 on both sides of the filter plate 2 are staggered in the vertical direction, which can further improve the blowing effect on the impurities in the filter hole 21.

[0044] like Figure 1 Figure 2 Figure 3As shown, in a preferred embodiment of the present invention, a cleaning mechanism 8 is provided at the top of the housing 1 to cooperate with the filter plate 2. The cleaning mechanism 8 includes a water tank 81 and a flow guiding component 82. The water tank 81 is fixedly installed at the top of the housing 1. The bottom end of the water tank 81 is provided with a funnel shape and extends to the top of the housing 1. The flow guiding component 82 is located at the bottom of the water tank 81 and is used to control the water in the water tank 81 to flow quantitatively to the surface of the filter plate 2.

[0045] An appropriate amount of water is stored in the water tank 81. After the filter plate 2 is removed, it moves upward a certain distance again. The flow guiding component 82 controls the water in the water tank 81 to flow quantitatively to the surface of the filter plate 2. The water flows from top to bottom on the surface of the filter plate 2, which can clean the impurities on the surface of the filter plate 2 and the impurity discharge plate 5. The impurities can be easily discharged from the impurity discharge port 4 along with the water flow.

[0046] like Figure 3 , Figure 8 As shown, in a preferred embodiment of the present invention, the flow guiding component 82 includes a water spraying groove 821 opened in the bottom wall of the water tank 81, a support rod 822 is fixedly installed in the bottom wall of the water tank 81, a sealing plate 825 is slidably installed on multiple sets of support rods 822, a top plate 823 is fixedly installed on the top of multiple sets of support rods 822, a compression spring 824 is fixedly installed on the surface of the top plate 823, and the extension end of the compression spring 824 is connected to the sealing plate 825.

[0047] Initially, the compression spring 824 applies a pushing force to the sealing plate 825, which controls the water spray tank 821 to be in a closed state. When it is necessary to clean the filter plate 2, the filter plate 2 moves vertically upward, applying a pushing force to the sealing plate 825, thus pushing the sealing plate 825 vertically upward. At this time, a gap is created between the sealing plate 825 and the water spray tank 821, and the water in the water tank 81 flows through the gap to the surface of the filter plate 2, which can clean the impurities on the surface of the filter plate 2 and the impurity removal plate 5. After cleaning is completed, the filter plate 2 moves vertically downward, and the sealing plate 825 controls the water spray tank 821 to switch back to the closed state.

[0048] like Figure 3 As shown, in a preferred embodiment of the present invention, the two inner sidewalls of the box body 1 are respectively provided with arc-shaped guide grooves 9, and the sidewall of the waste discharge plate 5 is fixedly installed with guide protrusions, which are slidably installed in the guide grooves 9.

[0049] When the waste removal plate 5 rotates inside the housing 1, the guide protrusion rotates synchronously in the guide groove 9. The guide protrusion and the guide groove 9 cooperate with each other to limit the rotation range and position of the waste removal plate 5.

[0050] like Figure 3As shown, in a preferred embodiment of the present invention, a first magnetic positioning strip 10 is fixedly installed on the inner side wall of the housing 1, and a second magnetic positioning strip 101 that cooperates with the first magnetic positioning strip 10 is fixedly installed at both ends of the filter plate 2.

[0051] When the filter plate 2 is kept horizontal between the inlet pipe 11 and the outlet pipe 12, the second magnetic positioning strip 101 at the end of the filter plate 2 is connected to the first magnetic positioning strip 10 as a whole. The first magnetic positioning strip 10 and the second magnetic positioning strip 101 cooperate with each other, which can effectively improve the stability of the filter plate 2.

[0052] The working principle of this invention is as follows: Initially, the filter plate 2 is vertically positioned between the inlet pipe 11 and the outlet pipe 12. During the filtration process, the filter plate 2 remains horizontal within the cavity of the housing 1. Two sets of impurity removal plates 5 are attached to each other at one end of the cavity of the housing 1 to form a conical, sloping structure. Ethyl methyl carbonate solution is introduced into the cavity of the housing 1 through the inlet pipe 11. The ethyl methyl carbonate solution passes through the filter plate 2 and is then discharged through the outlet pipe 12. When the ethyl methyl carbonate solution passes through the filter holes 21 on the surface of the filter plate 2, impurities mixed in the ethyl methyl carbonate solution adhere to the surface of the filter holes 21. When the amount of impurities attached to the surface of the filter plate 2 and the filter holes 21 reaches a certain level, the inlet pipe 11 stops supplying the ethyl methyl carbonate solution.

[0053] The first motor 313 drives the first threaded rod 312 to rotate. The first threaded rod 312 controls the sliding block 314 to move within the vertical groove 311. The sliding block 314 cooperates with the bearing rod 315 to control the filter plate 2 to move vertically within the cavity of the housing 1. When the bearing rod 315 moves upward, it drives the positioning toothed disc 322 to move upward synchronously. When the positioning toothed disc 322 contacts the positioning rack 323, the positioning toothed disc 322 rolls along the surface of the positioning rack 323. The positioning toothed disc 322 drives the bearing rod 315 and the filter plate 2 to rotate synchronously. When the filter plate 2 rotates 90 degrees and reaches a vertical position, the positioning toothed disc 322 and the positioning rack 323 separate. When the top of the filter plate 2 contacts the discharge plate 5, the filter plate 2 pushes the discharge plate 5 to rotate outward. The stop rod 61 further restricts the relative position of the discharge plate 5 and the filter plate 2. The end of the discharge plate 5 facing the filter plate 2 directly contacts the stop rod 61, which can effectively prevent the discharge plate 5 from contacting the filter plate 2. After the filter plate 2 has moved above the discharge plate 5, the stop rod 61 releases the restriction on the discharge plate 5, and the two sets of discharge plates 5 are put back together.

[0054] The second motor 717 drives a set of second threaded rods 712 to rotate, which in turn drives the synchronous discs 713 to rotate. Multiple sets of synchronous discs 713 cooperate with the synchronous belt 714 to control the rotation of multiple sets of second threaded rods 712. Multiple sets of second threaded rods 712 cooperate with the support block 715 to control the scraper 716 to move vertically on both sides of the filter plate 2. The scraper 716 can efficiently clean the impurities attached to the surface of the filter plate 2. When the support block 715 moves vertically, it drives the air jet pipe 723 to move synchronously on the outside of the filter plate 2. The air pump 721 generates high-pressure air and delivers it into the air jet pipe 723. The air jet pipe 723 can conveniently blow the impurities attached to the surface of the deep filter holes 21 to the surface of the filter plate 2. The two sets of air jet pipes 723 on both sides of the filter plate 2 are staggered vertically, which can further improve the blowing effect on impurities in the filter holes 21. The scraper 716 and the jet pipe 723 work together to thoroughly clean the impurities attached to the surface of the filter plate 2 and the filter holes 21. The impurities cleaned off the surface of the filter plate 2 fall onto the surface of the discharge plate 5. Since the discharge plate 5 has an inclined structure, the impurities on the surface of the discharge plate 5 can be automatically discharged to the outside of the box 1 through the discharge port 4.

[0055] After the impurities on the surface of filter plate 2 are cleaned, filter plate 2 moves vertically downwards. Filter plate 2 drives magnetic sheet 625 to move downwards synchronously. Magnetic sheet 625 drives positioning block 623 to move downwards synchronously. Positioning block 623 and positioning rope 624 cooperate to control the rotation of the two sets of impurity discharge plates 5 to the outside of filter plate 2. At this time, a gap is created between the two sets of impurity discharge plates 5. Filter plate 2 can pass through the gap and move downwards between the two sets of impurity discharge plates 5, effectively avoiding interference between filter plate 2 and impurity discharge plates 5 during downward movement. As filter plate 2 continues to move downwards, magnetic sheet 625 and positioning block 623 separate. Positioning block 623 moves back to its original position. After filter plate 2 has moved to below impurity discharge plates 5, the two sets of impurity discharge plates 5 are re-attached and connected together. The vertical filter plate 2 moves vertically downwards, and the positioning toothed disc 322 rolls along the surface of the positioning toothed disc 323. The positioning toothed disc 322 and the bearing rod 315 cooperate with each other to control the filter plate 2 to rotate from the vertical state to the horizontal state, so that the filter plate 2 can continue to filter and remove impurities from the methyl ethyl carbonate solution.

[0056] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A filter device for the production of methyl ethyl carbonate, comprising a housing, an inlet pipe disposed on one side wall of the housing, a drain pipe disposed at the bottom end of the other side wall of the housing, a filter plate disposed in the inner cavity of the housing, and filter holes uniformly distributed on the surface of the filter plate, characterized in that, The two opposite side walls of the box are respectively provided with a discharge port, and a discharge plate is rotatably installed in the discharge port. The two opposite sides of the two sets of discharge plates fit together in the inner cavity of the box. The inner cavity of the box is provided with a first positioning mechanism that cooperates with the filter plate. The first positioning mechanism includes a lifting component and a flipping component. The lifting assembly is located between two opposing inner side walls of the housing and is connected to the filter plate. The lifting assembly is used to control the vertical movement of the filter plate within the housing cavity. The flipping component is located in the inner cavity of the box and is connected to the lifting component. When the filter plate moves in the vertical direction, the flipping component controls the filter plate to switch between the horizontal and vertical states in a way that cooperates with the lifting component. The inner cavity of the box is provided with a second positioning mechanism that cooperates with the waste discharge plate. The second positioning mechanism includes an upper opening and closing component and a lower opening and closing component. The upper opening and closing component is located on the surface of the filter plate. When the filter plate is kept vertical and moves upward, the upper opening and closing component controls the two sets of debris discharge plates to rotate to the outside of the filter plate. The upper opening and closing component includes baffles fixedly installed on the upper and lower sides of the filter plate, and the baffles are U-shaped structures. The lower opening and closing assembly is located in the inner cavity of the housing and connected to the filter plate. When the filter plate is kept vertical and moves downward, the lower opening and closing assembly controls the two sets of waste removal plates to rotate to the outside of the filter plate. The lower opening and closing assembly includes a fixed rod fixedly installed on the two opposite inner side walls of the housing, located above the waste removal plate. A guide wheel is rotatably installed in the middle of the fixed rod. A positioning rope is fixedly installed on the surface of the waste removal plate. The end of the positioning rope away from the waste removal plate passes through the guide wheel and passes through to the end of the fixed rod. The end of the positioning rope away from the waste removal plate extends to the outside of the fixed rod and is fixedly installed with a positioning block. The positioning block is made of magnetic material. Magnetic sheets that cooperate with the positioning blocks are fixedly installed on the two opposite sides of the filter plate. The top of the housing is equipped with a cleaning mechanism that cooperates with the filter plate. The cleaning mechanism includes a scraping component and a blowing component. The scraping assembly and the purging assembly are located at the top of the housing and above the impurity discharge plate, respectively. The scraping assembly is used to clean the impurities attached to the surface of the filter plate, and the purging assembly is used to blow the impurities attached to the filter holes to the surface of the filter plate.

2. The apparatus for filtering impurities in the production of methyl ethyl carbonate according to claim 1, characterized in that, The lifting assembly includes vertical slots opened on the two inner side walls of the housing, with sliding blocks slidably installed in the vertical slots. Two sets of sliding blocks are rotatably mounted on a support rod. The filter plate is fixedly installed on the surface of the support rod. A first threaded rod is rotatably installed in the vertical slot. The first threaded rod is threadedly connected to the sliding block. The top end of the first threaded rod extends to the outside of the housing and is connected to a first motor.

3. The apparatus for filtering impurities in the production of methyl ethyl carbonate according to claim 2, characterized in that, The flipping assembly includes side grooves opened on both sides of the filter plate, a positioning toothed disc fixedly installed on the surface of the bearing rod, the positioning toothed disc being located in the side groove, and a positioning rack fixedly installed on the inner side wall of the box, the positioning rack engaging with the positioning toothed disc.

4. The apparatus for filtering impurities in the production of ethyl methyl carbonate according to claim 1, characterized in that, The scraping assembly includes two sets of base plates fixedly installed on the two opposite inner side walls of the housing. A second threaded rod is rotatably installed between the base plate and the top wall of the housing. A bearing block is threadedly connected to the surface of the second threaded rod. The bearing block is slidably connected to the inner side wall of the housing in the vertical direction. The two sets of bearing blocks are fixedly connected to a scraper. A synchronous disc is fixedly installed on the surface of the second threaded rod. Multiple sets of synchronous discs are connected to a synchronous belt. The top of one set of second threaded rods extends to the outside of the housing and is connected to a second motor.

5. The apparatus for filtering impurities in the production of ethyl methyl carbonate according to claim 4, characterized in that, The purging assembly includes two sets of air jet pipes fixedly installed together with support blocks. The air jet pipe on one side of the filter plate is located above the scraper, and the air jet pipe on the other side of the filter plate is located below the scraper. An air pump is fixedly installed on the side wall of the housing. The output shaft of the air pump is connected to an air guide pipe, which extends into the inner cavity of the housing and is connected to the air jet pipe.

6. The apparatus for filtering impurities in the production of ethyl methyl carbonate according to claim 1, characterized in that, The top of the chamber is equipped with a cleaning mechanism that cooperates with the filter plate. The cleaning mechanism includes a water tank and a flow guiding component. The water tank is fixedly installed on the top of the chamber. The bottom of the water tank is funnel-shaped and extends to the top of the chamber. The flow guiding component is located at the bottom of the water tank and is used to control the quantitative flow of water in the water tank to the surface of the filter plate.

7. The apparatus for filtering impurities in the production of ethyl methyl carbonate according to claim 6, characterized in that, The flow guiding assembly includes a water spray groove opened in the bottom wall of the water tank, a support rod fixedly installed in the bottom wall of the water tank, a sealing plate slidably installed on multiple sets of support rods, a top plate fixedly installed at the top of multiple sets of support rods, a compression spring fixedly installed on the surface of the top plate, and the extension end of the compression spring connected to the sealing plate.

8. The apparatus for filtering impurities in the production of methyl ethyl carbonate according to claim 1, characterized in that, The two inner sidewalls opposite to each other of the box are respectively provided with arc-shaped guide grooves, and the sidewall of the waste discharge plate is fixedly installed with guide protrusions, which are slidably installed in the guide grooves.

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