Centrifugal unsaturated polyester resin efficient filtering device

Abstract

The utility model belongs to the technical field of resin separation equipment, and particularly relates to a centrifugal unsaturated polyester resin high-efficiency filtering device which comprises a shell and a centrifugal barrel which is coaxially arranged in the shell in a spaced and sleeved mode, a cavity is formed between the shell and the centrifugal barrel, and a centrifugal barrel top cover is detachably installed at the top of the centrifugal barrel. A filter screen is detachably installed on the inner wall of the centrifugal barrel, a plurality of discharging holes are formed in the side wall of the centrifugal barrel, the centrifugal barrel is connected with a rotating power assembly, a feeding pipe is fixedly installed at the bottom of the shell, the upper end of the feeding pipe is arranged close to a top cover of the centrifugal barrel, and a spoiler is arranged at the lower end of the top cover of the centrifugal barrel. The upper end of the feeding pipe is arranged close to the top cover of the centrifugal barrel, the spoiler is arranged at the lower end of the top cover of the centrifugal barrel, unsaturated polyester resin is filtered in a centrifugal mode, the resin sprayed out of the upper end of the feeding pipe is crushed into multiple strands of lasing fluid through the spoiler, and the effective filtering area of the filter screen is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of resin separation equipment, and specifically relates to a centrifugal unsaturated polyester resin high-efficiency filtering device. Background Art

[0002] Unsaturated polyester resin is a viscous liquid obtained by dehydration and condensation of diols and dibasic acids, and then diluted with cross-linking monomers such as styrene. In order to control the quality of the finished product and avoid the appearance defects of unsaturated polyester resin products, the resin is usually filtered before filling to remove impurities in the production raw materials and those formed during the production process.

[0003] At present, resin filtration usually adopts mesh filters and scraper filters. The mesh filter mainly relies on the gravity of the resin to filter, and the filtering speed is slow. Impurities in the resin accumulate on the filter screen, causing the filtering speed to gradually decrease. The device needs to be opened and the filter bag needs to be replaced frequently to clean the residue in the filter bag. The scraper filter also relies on the gravity of the resin to complete the filtering, and the filtering speed is slow. The components of the scraper mechanism are mostly long structures. By increasing the scraper speed to increase the filtering rate, it is easy to cause stress concentration in the components. Both the mesh filter and the scraper filter rely on the gravity of the resin to separate the resin from impurities. Due to the high viscosity of the resin itself, the separation efficiency is low, resulting in a long filling time for the finished resin product, which greatly extends the production cycle of the resin. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a centrifugal unsaturated polyester resin high-efficiency filtering device with high filtering efficiency and simple and reliable structure.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a centrifugal unsaturated polyester resin high-efficiency filtering device, comprising a shell and a centrifugal cylinder spaced and coaxially sleeved inside the shell, a cavity is formed between the shell and the centrifugal cylinder, a centrifugal cylinder top cover is detachably installed on the top of the centrifugal cylinder, a filter screen is detachably installed on the inner wall of the centrifugal cylinder, and a plurality of discharge holes are arranged on the side wall of the centrifugal cylinder, the centrifugal cylinder is connected to a rotating power component, a feed pipe is fixedly installed on the bottom of the shell, the upper end of the feed pipe is arranged close to the centrifugal cylinder top cover, and a spoiler is arranged at the lower end of the centrifugal cylinder top cover.

[0006] Preferably, the spoiler is a cross-shaped spoiler.

[0007] Preferably, a scraping device is further provided in the centrifugal cylinder, the scraping device is fixedly mounted on the feed pipe, and the scraping device is provided with a scraping portion that fits the filter screen.

[0008] Preferably, the scraper device includes a support rod and a scraper plate, the support rod is fixedly mounted on the feed pipe, the scraper plate is vertically and fixedly mounted on the end of the support rod, and one side edge of the scraper plate serves as a scraper portion that fits against the inner wall of the filter screen.

[0009] Preferably, the middle portion of the support rod is fixedly mounted on the feed pipe, and a scraper plate is vertically arranged at both ends of the support rod.

[0010] Preferably, the upper end of the shell is opened, a shell top cover is arranged at the upper end of the shell, the rotating power assembly is installed on the shell top cover, and the output end of the rotating power assembly is connected to the centrifuge cylinder top cover.

[0011] Preferably, a mounting groove is sunken at the lower end of the inner wall of the centrifugal cylinder, the lower end of the filter screen is inserted into the mounting groove, an annular groove is provided on the upper inner wall of the centrifugal cylinder, and a mounting boss is protruding outward from the upper end of the filter screen, and the mounting boss is stuck in the annular groove.

[0012] Preferably, a sealing gasket is installed on the upper end of the mounting boss, and the sealing gasket is also installed in the annular groove.

[0013] Preferably, a slag discharge pipe is further provided at the bottom of the shell, and the upper end of the slag discharge pipe faces the inside of the centrifugal cylinder.

[0014] Preferably, a discharge pipe is further provided at the bottom of the shell, and an upper end of the discharge pipe faces the cavity between the shell and the centrifugal cylinder.

[0015] Compared with the prior art, the above technical solution has the following beneficial effects:

[0016] 1. The utility model includes a shell and a centrifugal cylinder spaced and coaxially sleeved inside the shell, the centrifugal cylinder is connected to a rotating power assembly, a feed pipe is installed from the bottom of the centrifugal cylinder, the upper end of the feed pipe is arranged close to the top cover of the centrifugal cylinder, a spoiler is arranged at the lower end of the top cover of the centrifugal cylinder, and the unsaturated polyester resin is filtered by centrifugation. The spoiler breaks the resin sprayed from the upper end of the feed pipe into multiple jet fluids, thereby increasing the effective filtering area of ​​the filter screen, forming a cavity between the shell and the centrifugal cylinder, and the filtered resin enters the cavity. The utility model has high filtering efficiency and a simple and reliable structure.

[0017] 2. A scraper plate is fixed in the centrifugal cylinder to scrape off the impurities on the inner wall of the filter screen in real time, which can improve the filtration efficiency of the resin and reduce the filling time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2It is a cross-sectional view of the utility model.

[0020] Figure 3 for Figure 2 Enlarged view of point D in the middle.

[0021] Figure 4 for Figure 2 Cross-sectional view at AA in the middle.

[0022] Figure 5 It is a schematic diagram of the structure of the centrifuge cylinder top cover and spoiler.

[0023] Figure 6 It is a schematic diagram of the structure of the centrifuge cylinder.

[0024] Figure 7 for Figure 2 Enlarged view of point B in the middle.

[0025] Figure 8 for Figure 2 Enlarged view of point C in the middle.

[0026] Fig. 9 Schematic diagram of the scraper mechanism.

[0027] Among them: 1, shell 2, motor 3, centrifugal cylinder 4, filter screen 5, feed pipe 6, discharge pipe 7, slag discharge pipe 8, upper support rod 9, lower support rod 10, first scraper plate 11, second scraper plate 12, shell top cover 13, centrifugal cylinder top cover 14, cross spoiler 15, half coupling 16, sealing ring 17, connecting key 18, transmission shaft 19, observation window 20, cavity 21, annular groove 22, sealing gasket 23, mounting boss 24, mounting groove 25, discharge hole 71, first slag discharge pipe 72, second slag discharge pipe 81, U-shaped groove 82, through hole 1201, outer convex platform 1202, connecting through hole 1203, mounting through hole. DETAILED DESCRIPTION

[0028] Figures 1 to 9 It is the best embodiment of the utility model, and the following Figures 1 to 9 The utility model is further described.

[0029] like Figures 1 to 4As shown, a centrifugal unsaturated polyester resin high-efficiency filtering device of the utility model comprises a shell 1 and a centrifugal cylinder 3, the centrifugal cylinder 3 is spaced and coaxially sleeved inside the shell 1, a cavity 20 for accommodating filtered resin is formed between the shell 1 and the centrifugal cylinder 3, a centrifugal cylinder top cover 13 is detachably mounted on the top of the centrifugal cylinder 3, a filter screen 4 is detachably mounted on the inner wall of the centrifugal cylinder 3, and a plurality of discharge holes 25 are arranged on the side wall of the centrifugal cylinder 3, the centrifugal cylinder 3 is connected to a rotating power assembly, a feed pipe 5 is fixedly mounted on the bottom of the shell 1, the upper end of the feed pipe 5 is arranged close to the centrifugal cylinder top cover 13, a spoiler is arranged at the lower end of the centrifugal cylinder top cover 13, and the unsaturated polyester resin is filtered by centrifugation, and the spoiler breaks the resin sprayed from the upper end of the feed pipe 5 into multiple jet fluids, thereby increasing the effective filtering area of ​​the filter screen 4.

[0030] The housing 1 is a cylindrical structure with a closed lower end and an open upper end. A housing top cover 12 is detachably mounted on the upper end of the housing 1. Two mounting parts are symmetrically and protruding outwardly on the upper end of the housing 1. Two mounting parts are also correspondingly arranged on the housing top cover 12. The mounting parts of the housing 1 and the housing top cover 12 are fixedly connected by bolts. A groove is arranged on the top of the housing 1 from the inner wall to the outside, and a sealing ring 16 is installed in the groove. An observation window 19 is arranged on the side of the housing 1 to facilitate observation of the internal conditions of the housing 1.

[0031] like Figures 5 and 6 As shown, in this embodiment, the rotating power component is a motor 2, and the motor 2 is fixedly arranged at the axis center of the shell top cover 12. The output end of the motor 2 is connected to the centrifuge cylinder top cover 13. There are corresponding convex platforms 1201 on the top of the centrifuge cylinder 3 and the centrifuge cylinder top cover 13. The convex platforms 1201 are symmetrically arranged on the top of the centrifuge cylinder 3 and the two sides of the centrifuge cylinder top cover 13. There are mounting through holes 1203 processed on the convex platforms 1201 on the top of the centrifuge cylinder 3 and the centrifuge cylinder top cover 13. The centrifuge cylinder 3 and the centrifuge cylinder top cover 13 are fixedly connected by bolts passing through the mounting through holes 1203. A cross-shaped connecting frame is arranged at the bottom of the centrifuge cylinder 3, and the feed pipe 5 passes through the middle of the connecting frame. Specifically, a plurality of connecting through holes 1202 are provided at the center of the centrifuge cylinder top cover 13, the half coupling 15 is installed on the centrifuge cylinder top cover 13 through bolts and the connecting through holes 1202, the transmission shaft 18 of the motor 2 is connected to the half coupling 15 through the connecting key 17, and the transmission shaft 18 of the motor 2 drives the centrifuge cylinder 3 and the centrifuge cylinder top cover 13 to rotate together through the half coupling 15.

[0032] The spoiler in this embodiment is a cross-shaped spoiler 14, which is fixedly arranged at the bottom of the centrifugal cylinder top cover 13, and the cross-shaped spoiler 14 is arranged just above the discharge port of the feed pipe 5, with a spacing of approximately 10 mm. The resin is sprayed out from the discharge port at the upper end of the feed pipe 5, and the motor 2 drives the centrifugal cylinder 3 and the centrifugal cylinder top cover 13 to rotate. The cross-shaped spoiler 14 breaks the resin sprayed out from the upper end of the feed pipe 5 into multiple jet fluids. After being filtered by the filter screen 4, the resin flows out from several discharge holes 25 of the centrifugal cylinder 3, and the filtered resin enters the cavity 20 between the centrifugal cylinder 3 and the shell 1, and the impurities in the resin are blocked by the filter screen 4 on the inner wall of the filter screen 4.

[0033] like Figure 7-8 As shown, the filter screen 4 is fixedly and detachably mounted on the inner wall of the centrifugal cylinder 3. The specific mounting method is that a mounting groove 24 is sunken at the lower end of the inner wall of the centrifugal cylinder 3, and the lower end of the filter screen 4 is inserted into the mounting groove 24. At the same time, an annular groove 21 is arranged on the inner wall of the upper end of the centrifugal cylinder 3, and a mounting boss 23 is arranged protruding outward at the upper end of the filter screen 4. The mounting boss 23 is stuck in the annular groove 21, and the upper and lower ends of the filter screen 4 are stuck together on the centrifugal cylinder 3 for fixing. A sealing gasket 22 is installed at the upper end of the mounting boss 23, and the sealing gasket 22 is also installed in the annular groove 21. The sealing gasket 22 ensures that the resin will not overflow from between the centrifugal cylinder 3 and the centrifugal cylinder top cover 13.

[0034] The impurities in the resin are blocked by the filter screen 4 on the inner wall of the filter screen 4. The impurities attached to the inner wall of the filter screen 4 will cause the filter holes of the filter screen 4 to be blocked, resulting in the resin being unable to be filtered out from the centrifugal cylinder 3. Therefore, a scraper device is also provided in the centrifugal cylinder 3. The scraper device is fixedly installed on the feed pipe 5. The scraper device is provided with a scraper part that fits the filter screen 4. The scraper part scrapes the impurities on the inner wall of the rotating filter screen 4, and the impurities fall on the lower part of the centrifugal cylinder 3.

[0035] like Fig. 9 As shown, the scraper device in this embodiment includes a support rod and a scraper plate, the support rod is fixedly mounted on the feed pipe 5, the scraper plate is vertically and fixedly mounted on the end of the support rod, and one side of the scraper plate is used as a scraper portion to fit the inner wall of the filter screen 4. A U-shaped groove 81 is provided at the end of the support rod, one side of the scraper plate is inserted into the U-shaped groove 81, a mounting hole 82 is provided on the U-shaped groove 81, and a mounting hole is also provided on the scraper plate, and the scraper plate is fixedly mounted on the support rod by passing bolts through the mounting holes on the support rod and the mounting holes on the scraper plate.

[0036] Specifically, in the present embodiment, two support rods are provided, namely a first support rod 8 and a second support rod 9. The first support rod 8 and the second support rod 9 are vertically installed on the feed pipe 5 at intervals. The middle parts of the first support rod 8 and the second support rod 9 are fixedly installed on the feed pipe 5. A scraper plate is vertically provided at both ends of the first support rod 8 and the second support rod 9. The scraper plates on both sides include a first scraper plate 10 and a second scraper plate 11, respectively. When the filter screen 4 rotates with the centrifugal cylinder 3, the sides of the first scraper plate 10 and the second scraper plate 11 scrape the inner wall of the filter screen 4 to scrape off impurities on the inner wall of the filter screen 4.

[0037] A slag discharge pipe 7 is also provided at the bottom of the shell 1, and the upper end of the slag discharge pipe 7 faces the inside of the centrifugal cylinder 3. The scraper scrapes the impurities from the inner wall of the filter screen 4 and drops them to the bottom of the centrifugal cylinder 3, and finally discharges the centrifugal cylinder 3 from the slag discharge pipe 7. In this embodiment, two slag discharge pipes 7 are arranged in parallel, including a first slag discharge pipe 71 and a second slag discharge pipe 72, respectively. The lower ends of the first slag discharge pipe 71 and the second slag discharge pipe 72 are combined into a total slag discharge pipe 7, and a valve is provided on the slag discharge pipe 7. A discharge pipe 6 is also provided at the bottom of the shell 1, and the upper end of the discharge pipe 6 faces the cavity 20 between the shell 1 and the centrifugal cylinder 3. The filtered resin flows out from the discharge hole 25 of the centrifugal cylinder 3 into the cavity 20, and the resin is finally transported out from the discharge pipe 6 at the bottom of the cavity 20.

[0038] When the utility model is in use, the motor 2 drives the centrifugal cylinder 3 and the filter screen 4 to rotate synchronously through the half coupling 15 of the centrifugal cylinder top cover 13, and the resin to be filtered flows out from the upper end of the feed pipe 5. The resin is broken into multiple streams of fluid by the high-speed rotating cross spoiler 14, and is ejected onto the filter screen 4. Under the action of huge centrifugal force, the resin and impurities are quickly separated, and the separated resin enters the cavity 20 and enters the filling system from the discharge pipe 6; the impurities on the filter screen 4 are deposited at the bottom of the centrifugal cylinder 3 under the action of the scraper plate. When the resin is not discharged smoothly, the filter device stops feeding, and the filter device completes the filtration of the resin in the centrifugal cylinder 3. After the filtered resin is discharged, the valve of the discharge pipe 7 is opened to carry out slag discharge treatment, and the residue in the centrifugal cylinder 3 is discharged through the slag discharge pipe 7 at the bottom of the centrifugal cylinder 3. The utility model has high filtration efficiency and convenient slag cleaning. The scraper plate is fixedly arranged in the centrifugal cylinder 3 to immediately scrape off the impurities on the inner wall of the filter screen 4, which can improve the filtration efficiency of the resin and reduce the filling time.

[0039] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A centrifugal unsaturated polyester resin high efficiency filtering device, characterized in that: The invention comprises a shell (1) and a centrifugal cylinder (3) which is spaced apart and coaxially sleeved inside the shell (1), a cavity (20) being formed between the shell (1) and the centrifugal cylinder (3), a centrifugal cylinder top cover (13) being detachably mounted on the top of the centrifugal cylinder (3), a filter screen (4) being detachably mounted on the inner wall of the centrifugal cylinder (3), and a plurality of discharge holes (25) being arranged on the side wall of the centrifugal cylinder (3), the centrifugal cylinder (3) being connected to a rotary power assembly, a feed pipe (5) being fixedly mounted on the bottom of the shell (1), the upper end of the feed pipe (5) being arranged close to the centrifugal cylinder top cover (13), and a spoiler being arranged at the lower end of the centrifugal cylinder top cover (13).

2. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 1, characterized in that: The spoiler is a cross-shaped spoiler (14).

3. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 1, characterized in that: A scraping device is also provided in the centrifugal cylinder (3), the scraping device being fixedly mounted on the feed pipe (5), and the scraping device being provided with a scraping portion that fits the filter screen (4).

4. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 3, characterized in that: The scraper device comprises a support rod and a scraper plate, the support rod is fixedly mounted on the feed pipe (5), the scraper plate is vertically and fixedly mounted on the end of the support rod, and one side edge of the scraper plate serves as a scraper portion that fits against the inner wall of the filter screen (4).

5. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 4, characterized in that: The middle portion of the support rod is fixedly mounted on the feed pipe (5), and a scraper plate is vertically arranged at both ends of the support rod.

6. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 1, characterized in that: The upper end of the shell (1) is open, a shell top cover (12) is provided at the upper end of the shell (1), a rotary power assembly is mounted on the shell top cover (12), and an output end of the rotary power assembly is connected to a centrifuge barrel top cover (13).

7. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 1, characterized in that: A mounting groove (24) is provided at the lower end of the inner wall of the centrifugal cylinder (3), the lower end of the filter screen (4) is inserted into the mounting groove (24), an annular groove (21) is provided on the inner wall of the upper end of the centrifugal cylinder (3), and a mounting boss (23) is provided at the upper end of the filter screen (4) protruding outward, the mounting boss (23) being stuck in the annular groove (21).

8. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 7, characterized in that: A sealing gasket (22) is installed on the upper end of the mounting boss (23), and the sealing gasket (22) is also installed in the annular groove (21).

9. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 1, characterized in that: A slag discharge pipe (7) is also provided at the bottom of the shell (1), and the upper end of the slag discharge pipe (7) faces the interior of the centrifugal cylinder (3).

10. A centrifugal unsaturated polyester resin high efficiency filtering device according to claim 1, characterized in that: A discharge pipe (6) is also provided at the bottom of the housing (1), and an upper end of the discharge pipe (6) faces the cavity (20) between the housing (1) and the centrifugal cylinder (3).

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