Production device and method of flame-retardant mastic

Abstract

The invention belongs to the technical field of flame-retardant mastic processing, and particularly discloses a flame-retardant mastic production device and method.The flame-retardant mastic production device comprises a mixing barrel, an end cover is arranged on one side of the mixing barrel, a transmission groove is formed in one side of the end cover, a feeding assembly is arranged in the transmission groove, and a supporting ring is arranged on the side, close to the end cover, between the inner walls of the mixing barrel; a motor is arranged at the other end of the mixing barrel; according to the invention, asphalt is supplied into the mixing cylinder through the feeding pipe, then a flame retardant is intermittently supplied into the mixing cylinder in a small dosage through the feeding device, and the asphalt and the flame retardant are mutually mixed to form the flame-retardant mastic in cooperation with the mixing assembly, so that the asphalt is coarsely filtered and finely filtered in the asphalt supply process, and the flame-retardant mastic is formed. And finally, fine particles on the inner wall of the fine filter screen sleeve can be removed through the dirt removal assembly, so that the permeability of the filter screen is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of flame-retardant mastic processing, and particularly relates to a production device and method for flame-retardant mastic. Background Art

[0002] Flame-retardant mastic is made of petroleum asphalt as the base material, mineral fillers, etc., and an appropriate amount of flame retardants, plasticizers, etc. are added. It has the characteristics of airtightness, waterproofness, anti-freezing, anti-corrosion, not easy to age and crack, can be cold-constructed at normal temperature, and has flame retardancy after drying. It is an ideal cold insulation coating for heat preservation, waterproofing, fire prevention, and moisture prevention when used in combination with heat insulation materials such as foam glass and polyurethane in industries such as petrochemical industry.

[0003] During the processing of flame-retardant mastic, it is necessary to mix asphalt with an appropriate amount of flame retardant. However, the asphalt added contains a small amount of particulate impurities, which will cause the mixed flame-retardant mastic to be unable to be leveled during the brushing process, and the accumulation of impurities inside the mixing equipment will cause the fluidity inside the equipment to become poor, affecting the production efficiency of flame-retardant mastic. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a production device and method for flame-retardant mastic.

[0005] To achieve the above object, the present invention adopts the following technical solution: A production device for flame-retardant mastic, including a mixing cylinder, one side of the mixing cylinder is provided with an end cover, a transmission groove is opened on one side of the end cover, a feeding component is arranged inside the transmission groove, a support ring is arranged between the inner walls of the mixing cylinder near the end cover side, a motor is arranged at the other end of the mixing cylinder, and a mixing component is arranged at the output end of the motor; A feed pipe is communicated between the top of the mixing cylinder between the end cover and the support ring, a discharge pipe is communicated between the bottom of the mixing cylinder between the support ring and the fixed ring, a sedimentation tank is opened on the inner bottom surface of the mixing cylinder on the side of the end cover, and a pull cover is slidably connected between the inner walls of the sedimentation tank near the bottom edge.

[0006] Preferably, three columns are fixedly arranged at equal intervals along the circumferential direction on the inner bottom surface of the transmission groove, an annular support plate is fixed between the tops of the three columns, an annular limiting groove is opened on the top of the annular support plate, a coarse filter screen cover is arranged inside the mixing cylinder on the side of the support ring, one end of the coarse filter screen cover is clamped inside the annular limiting groove, and the other end of the coarse filter screen cover is bent and extends between the inner walls of the support ring.

[0007] Preferably, a rubber ring is fixed to the outer surface of the coarse filter cover near the edge of the other end, a sealing ring is arranged between the inner walls of the support ring, the rubber ring is in sealing fit with the sealing ring, a fine filter sleeve is arranged between the opposite sides of the support ring and the fixed ring, the inner wall of the fine filter sleeve is flush with the inner wall of the support ring, and the fine filter sleeve and the closed end of the coarse filter cover are communicated with each other through the inside of the support ring.

[0008] Preferably, the feeding assembly includes a driving disc. A clamping groove is formed in the middle of the inner bottom surface of the transmission groove. The driving disc is located inside the transmission groove, and the middle of the bottom of the driving disc is rotationally clamped inside the clamping groove. The bottom of the driving disc is in close fit with the inner bottom surface of the transmission groove. An inlet is formed on one side of the end cover and penetrates through to the inside of the transmission groove. A docking port is formed in the bottom of the driving disc and penetrates through to the top. The docking port is communicated with the inlet.

[0009] Preferably, a docking pipe is fixed to one side of the end cover, and the inlet is communicated with the docking pipe. The outer surface of the driving disc is in sealing sliding fit with the inner side of the annular support plate. An external gear ring is fixed to the outer surface of the driving disc near the bottom edge. An external annular clamping groove is formed in the inner bottom surface of the transmission groove near the edge. A driving ring is rotatably arranged between the inner walls of the transmission groove. The bottom of the driving ring is slidably clamped inside the external annular clamping groove. The top of the driving ring extends to the outside of the coarse filter cover. The outer surface of the driving ring is in sealing sliding fit with the inner wall of the transmission groove. The inner wall of the driving ring is in sealing sliding fit with the outer surface of the annular support plate. An internal gear ring is fixed to the inner wall of the driving ring near the bottom edge. A bridging gear is rotatably arranged between the inner bottom surface of the transmission groove and the bottom of the annular support plate. The bridging gear meshes with the internal gear ring and the external gear ring respectively. Three scraping plates are equidistantly fixed to the top of the driving ring. The outer surfaces of one sides of the three scraping plates are all in close fit with the outer surface of the coarse filter cover. A hexagonal groove is formed in the top of the driving disc.

[0010] Preferably, the mixing assembly includes a driving shaft. A cleaning component is arranged on the driving shaft. The driving shaft is located inside the mixing cylinder. The outer surface of the driving shaft is in sliding fit with the outer surface of the bent part at the other end of the coarse filter cover. The outer surface of the driving shaft is located inside the support ring. The outer surface of the driving shaft is in sealing sliding fit with the inner wall of the fixed ring. One end of the driving shaft is clamped inside the hexagonal groove. A cylindrical cavity is formed in the other end of the driving shaft. An internal hexagonal sleeve ring is fixed in the middle between the inner walls of the cylindrical cavity. A hexagonal column is slidably arranged between the inner walls of the internal hexagonal sleeve ring. One end of the hexagonal column is fixed to the output end of the motor.

[0011] Preferably, a plurality of stirring rods are equidistantly fixed to the outer surface of the driving shaft near the edge of one end along the circumferential direction. The plurality of stirring rods are all correspondingly located on one side of the end cover. A spiral blade is fixed to the outer surface of the driving shaft. The spiral blade is located on one side of the stirring rods. The spiral blade and the plurality of stirring rods are all located inside the coarse filter cover.

[0012] Preferably, the cleaning component includes a plurality of annular rings, which are evenly and fixedly arranged on the outer surface of the driving shaft and are all located inside the fine filter sleeve. A hollow cavity is formed in the middle of the driving shaft. Suction pipes are fixedly arranged on the outer surfaces of the plurality of annular rings, and one ends of the plurality of suction pipes are correspondingly communicated with the inside of the hollow cavity. Sealing rings are fixedly arranged between the inner walls of the plurality of suction pipes near the top edge, and bottom rings are fixedly arranged in the middle between the inner walls of the plurality of suction pipes. Sealing blocks are arranged inside the plurality of suction pipes, and the tops of the plurality of sealing blocks are hermetically attached to the bottoms of the sealing rings correspondingly. Springs are fixedly arranged at the bottoms of the plurality of sealing blocks, and the bottoms of the plurality of springs are fixedly arranged on the tops of the bottom rings correspondingly.

[0013] Preferably, an air passage is formed in the inner bottom surface of the fixed ring, and one end of the air passage penetrates to the outer surface of the mixing cylinder. A hose is fixedly arranged on the outer surface of the mixing cylinder, and the hose is communicated with the air passage. A plurality of side ports are evenly formed between the inner walls of the hollow cavity near one side of the fixed ring, and the plurality of side ports all penetrate to the outer surface of the driving shaft. The plurality of side ports are all located inside the fixed ring and are communicated with the air passage on one side of the air passage. A limiting ring is rotatably arranged on the outer surface of the driving shaft near the other side of the fixed ring. A Z-shaped groove is formed in the outer surface of the mixing cylinder, and a dial rod is arranged inside the Z-shaped groove. One end of the dial rod is fixedly arranged on the outer surface of the limiting ring.

[0014] The present invention also provides a production method of flame-retardant mastic, which is applied to a production device of flame-retardant mastic. The production method of flame-retardant mastic includes the following steps: Step S1: Supply asphalt to the inside of the mixing cylinder through the feed pipe, and then intermittently supply the flame retardant to the inside of the mixing cylinder in small doses through the feeding device, and mix the asphalt and the flame retardant with the mixing component to form flame-retardant mastic. During the process of supplying asphalt, the asphalt will be roughly filtered and finely filtered to remove the granular impurities inside the asphalt, and finally the fine particles on the inner wall of the fine filter sleeve can be removed by the cleaning component, ensuring the permeability of the filter screen; Step S2: When the feeding component works, every time the driving disc rotates one circle during the rotation process, the docking port will coincide with the feeding port once. During the overlapping period, the flame retardant in the docking pipe can flow into the inside of the mixing cylinder through the docking port, thereby achieving the purpose of small-dose intermittent feeding. And when the driving disc rotates, since the bridging gear meshes with the inner tooth ring and the outer tooth ring respectively, the driving ring can be driven to rotate. When the driving ring rotates, the scraper will slide along the outer surface of the coarse filter cover to scrape off the larger impurities filtered on the outer surface of the coarse filter cover; Step S3: When the mixing assembly is working, the asphalt enters the mixing barrel through the feed pipe, and the asphalt is first filtered through the coarse filter screen cover inside the mixing barrel. The filtered asphalt enters the coarse filter screen cover, and then the motor can drive the drive shaft to rotate. During the rotation of the drive shaft, the flame retardant and the coarse filtered asphalt are mixed and stirred by the stirring rod inside the coarse filter screen cover to form flame retardant mastic; Step S4: When cleaning, the discharge pipe must be closed first, and at the same time, clean cleaning liquid is continuously injected into the interior of the mixing barrel from the feed pipe, and the hose is connected to the external negative pressure pipe. Then, the lever is slowly slid from one end of the Z-shaped groove to the other end. During the sliding process, multiple side ports will be interconnected with the airway. At this time, the sealing block can be adsorbed and slid downward under the adsorption force of the external negative pressure pipe, so that the opening of the suction pipe is opened, and the multiple suction pipes generate adsorption force. The adsorption force can adsorb the liquid inside the fine filter mesh sleeve to the hollow cavity. During the adsorption and discharge process, the drive shaft slides toward the side of the motor under the slow movement of the lever, so the multiple suction pipes will also slowly slide to one side on the inner side of the fine filter mesh sleeve. During the sliding process, the multiple suction pipes will completely slide along the inner wall of the fine filter mesh sleeve, thereby adsorbing and taking away the fine particles on the inner wall of the fine filter mesh sleeve, so as to achieve the purpose of cleaning the inner wall of the fine filter mesh sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention supplies asphalt to the interior of a mixing barrel through a feed pipe, and then intermittently supplies a small dose of a flame retardant to the interior of the mixing barrel through a feed device, and cooperates with a mixing component to mix the asphalt and the flame retardant to form a flame retardant mastic. In the process of supplying asphalt, the asphalt is coarsely filtered and finely filtered to remove granular impurities in the asphalt, and finally the fine particles on the inner wall of the fine filter screen sleeve can be removed by the cleaning component, thereby ensuring the permeability of the filter screen; 2. In the present invention, when the feeding assembly is working, the docking port will overlap with the feeding port once for each rotation of the driving disk. During the overlapping period, the flame retardant in the docking tube can flow into the interior of the mixing barrel through the docking port, thereby achieving the purpose of intermittent feeding of small doses; 3. In the present invention, when the mixing component is working, the flame retardant and the coarsely filtered asphalt are mixed and stirred by the stirring rod to form the flame retardant mastic, and then the flame retardant mastic is transported to one end of the coarse filter screen cover by the spiral blade, so that the flame retardant mastic enters the interior of the fine filter screen cover; 4. In the present invention, when the cleaning component is working, the sealing block can be sucked and slid downward under the action of the adsorption force of the external negative pressure pipe, thereby opening the opening of the suction pipe, so that multiple suction pipes generate adsorption force. The adsorption force can absorb the liquid inside the fine filter mesh sleeve into the hollow cavity, thereby adsorbing and taking away the fine particles on the inner wall of the fine filter mesh sleeve, thereby achieving the purpose of cleaning the inner wall of the fine filter mesh sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic side perspective view of a production device for a flame - retardant mastic according to the present invention; Figure 2 FIG. 2 is a schematic bottom perspective view of a production device for a flame - retardant mastic according to the present invention; Figure 3 FIG. 3 is a schematic sectional perspective view of a production device for a flame - retardant mastic according to the present invention; Figure 4 FIG. 4 is a schematic front perspective view of an end cover and a coarse filter screen cover in a production device for a flame - retardant mastic according to the present invention; Figure 5 FIG. 5 is a schematic sectional perspective view of a transmission shaft in a production device for a flame - retardant mastic according to the present invention; Figure 6 FIG. 6 is a schematic sectional perspective view of an end cover and a coarse filter screen cover in a production device for a flame - retardant mastic according to the present invention; Figure 7 In the present invention Figure 3 FIG. 7 is a partially enlarged view at position A in the present invention; Figure 8 In the present invention Figure 5 FIG. 8 is a partially enlarged view at position B in the present invention; Figure 9 In the present invention Figure 6 FIG. 9 is a partially enlarged view at position C in the present invention.

[0017] In the figures: 1, mixing cylinder; 2, end cover; 3, motor; 4, feed pipe; 5, discharge pipe; 6, sedimentation tank; 7, docking pipe; 8, pull - out cover plate; 9, Z - shaped groove; 10, lever; 11, hose; 12, support ring; 13, fixing ring; 14, drive shaft; 15, hexagonal column; 16, cylindrical cavity; 17, internal hexagonal sleeve ring; 18, air duct; 19, limit ring; 20, hollow cavity; 21, side port; 22, annular ring; 23, spiral blade; 24, stirring rod; 25, suction pipe; 26, bottom ring; 27, sealing block; 28, spring; 29, coarse filter screen cover; 30, rubber ring; 31, scraper; 32, drive ring; 33, fine filter screen sleeve; 34, sealing ring; 35, transmission groove; 36, column; 37, drive disk; 38, feed port; 39, docking port; 40, bridging gear; 41, external toothed ring; 42, internal toothed ring; 43, annular support plate; 44, external annular card slot; 45, clamping slot; 46, annular limit groove; 47, sealing ring; 48, hexagonal groove. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 9 , the present invention provides a technical solution: a production device for flame-retardant mastic, including a mixing cylinder 1, one side of the mixing cylinder 1 is provided with an end cover 2, a transmission groove 35 is opened on one side of the end cover 2, a feeding assembly is arranged inside the transmission groove 35, a support ring 12 is arranged between the inner walls of the mixing cylinder 1 near the end cover 2, the other end of the mixing cylinder 1 is provided with a motor 3, and a mixing assembly is arranged at the output end of the motor 3; The top of the mixing cylinder 1 is communicated with a feed pipe 4 between the end cover 2 and the support ring 12, the bottom of the mixing cylinder 1 is communicated with a discharge pipe 5 between the support ring 12 and the fixed ring 13, a sedimentation tank 6 is opened on the inner bottom surface of the mixing cylinder 1 on one side of the end cover 2, a pull cover 8 is slidably connected between the inner walls of the sedimentation tank 6 near the bottom edge, three columns 36 are fixedly arranged at equal intervals along the circumferential direction on the inner bottom surface of the transmission groove 35, an annular support plate 43 is fixed between the tops of the three columns 36, an annular limiting groove 46 is opened on the top of the annular support plate 43, a coarse filter screen cover 29 is arranged inside the mixing cylinder 1 on one side of the support ring 12, one end of the coarse filter screen cover 29 is clamped inside the annular limiting groove 46, the other end of the coarse filter screen cover 29 is bent and extends between the inner walls of the support ring 12. A rubber ring 30 is fixed on the outer surface of the coarse filter screen cover 29 near the edge of the other end, a sealing ring 34 is arranged between the inner walls of the support ring 12, and the rubber ring 30 is hermetically attached to the sealing ring 34. A fine filter screen sleeve 33 is arranged between the opposite sides of the support ring 12 and the fixed ring 13, the inner wall of the fine filter screen sleeve 33 is flush with the inner wall of the support ring 12, and the fine filter screen sleeve 33 is communicated with the closed end of the coarse filter screen cover 29 through the inside of the support ring 12.

[0020] Asphalt enters the interior of the mixing cylinder 1 through the feed pipe 4. Inside the mixing cylinder 1, the asphalt first passes through the coarse filter screen cover 29. After filtration, the asphalt enters the interior of the coarse filter screen cover 29, and a small dose of flame retardant is intermittently supplied into the mixing cylinder through the feeding device. Then, the mixing assembly mixes and stirs the flame retardant and the coarsely filtered asphalt to form flame-retardant mastic. Then, the flame-retardant mastic is conveyed to one end of the coarse filter screen cover 29 by the spiral blade 23, so that the flame-retardant mastic enters the interior of the fine filter screen sleeve 33. After fine filtration by the fine filter screen sleeve 33, the flame-retardant mastic can be discharged through the discharge pipe 5. Moreover, the fine particles on the inner wall of the fine filter screen sleeve 33 can be removed by the cleaning component, ensuring the permeability of the filter screen.

[0021] As Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 9 shown, the feeding assembly includes a driving disk 37. A clamping groove 45 is formed at the middle of the inner bottom surface of the transmission groove 35. The driving disk 37 is located inside the transmission groove 35, and the middle of the bottom of the driving disk 37 is rotationally clamped inside the clamping groove 45. The bottom of the driving disk 37 is in close contact with the inner bottom surface of the transmission groove 35. An inlet 38 penetrating through to the inside of the transmission groove 35 is formed on one side of the end cover 2. A docking port 39 penetrating through to the top is formed at the bottom of the driving disk 37. The docking port 39 is communicated with the inlet 38. A docking pipe 7 is fixed to one side of the end cover 2, and the inlet 38 is communicated with the docking pipe 7. The outer surface of the driving disk 37 is in sealed sliding contact with the inner side of the annular support plate 43. An external gear ring 41 is fixed to the outer surface of the driving disk 37 near the bottom edge. An external annular clamping groove 44 is formed at the inner bottom surface of the transmission groove 35 near the edge. A driving ring 32 is rotatably arranged between the inner walls of the transmission groove 35. The bottom of the driving ring 32 is slidably clamped inside the external annular clamping groove 44. The top of the driving ring 32 extends to the outside of the coarse filter screen cover 29. The outer surface of the driving ring 32 is in sealed sliding contact with the inner wall of the transmission groove 35. The inner surface of the driving ring 32 is in sealed sliding contact with the outer surface of the annular support plate 43. An internal gear ring 42 is fixed to the inner surface of the driving ring 32 near the bottom edge. A bridging gear 40 is rotatably arranged between the inner bottom surface of the transmission groove 35 and the bottom of the annular support plate 43. The bridging gear 40 meshes with the internal gear ring 42 and the external gear ring 41 respectively. Three scraping plates 31 are equidistantly fixed to the top of the driving ring 32. The outer surfaces of one sides of the three scraping plates 31 are all in close contact with the outer surface of the coarse filter screen cover 29. A hexagonal groove 48 is formed at the top of the driving disk 37.

[0022] The achieved effect is as follows. First, the docking pipe 7 is connected to the pipe for externally supplying the flame retardant. The feeding assembly operates by being driven by the drive shaft 14 in the mixing assembly. Since one end of the drive shaft 14 is engaged with the hexagonal groove 48 on the drive disk 37, the drive disk 37 can be driven to rotate when the drive shaft 14 rotates. During each rotation of the drive disk 37, the docking port 39 will coincide with the feeding port 38 once. During the coinciding period, the flame retardant in the docking pipe 7 can flow into the interior of the mixing cylinder 1 through the docking port 39, thereby achieving the purpose of small-dose intermittent feeding. And when the drive disk 37 rotates, since the bridging gear 40 is engaged with the inner tooth ring 42 and the outer tooth ring 41 respectively, the drive ring 32 can be driven to rotate. When the drive ring 32 rotates, the scraper 31 will slide along the outer surface of the coarse filter cover 29, scraping off the larger impurities filtered on the outer surface of the coarse filter cover 29. Since the impurities are heavier, the scraped-off impurities will deposit in the sedimentation tank 6. Finally, only need to pull out the pull-out cover plate 8 from the bottom of the sedimentation tank 6 to clean the larger impurities inside the sedimentation tank 6.

[0023] As Figure 2 , Figure 3 , Figure 5 and Figure 7 shown, the mixing assembly includes a drive shaft 14. A cleaning component is arranged on the drive shaft 14. The drive shaft 14 is located inside the mixing cylinder 1. The outer surface of the drive shaft 14 is slidably fitted with the outer surface of the bent part at the other end of the coarse filter cover 29. The outer surface of the drive shaft 14 is located inside the support ring 12. The outer surface of the drive shaft 14 is hermetically and slidably fitted with the inner wall of the fixed ring 13. One end of the drive shaft 14 is engaged inside the hexagonal groove 48. A cylindrical cavity 16 is opened at the other end of the drive shaft 14. An internal hexagonal collar 17 is fixedly arranged in the middle between the inner walls of the cylindrical cavity 16. A hexagonal column 15 is slidably arranged between the inner walls of the internal hexagonal collar 17. One end of the hexagonal column 15 is fixed to the output end of the motor 3. A plurality of stirring rods 24 are equidistantly fixed along the circumferential direction near one end edge of the outer surface of the drive shaft 14. The plurality of stirring rods 24 are all correspondingly located on one side of the end cover 2. A spiral blade 23 is fixed to the outer surface of the drive shaft 14. The spiral blade 23 is located on one side of the stirring rods 24. The spiral blade 23 and the plurality of stirring rods 24 are both located inside the coarse filter cover 29.

[0024] The achieved effect is that asphalt enters the interior of the mixing cylinder 1 through the feed pipe 4. Inside the mixing cylinder 1, the asphalt first passes through the coarse filter screen cover 29. After filtration, the asphalt enters the interior of the coarse filter screen cover 29. Then, the motor 3 can drive the drive shaft 14 to rotate. During the rotation of the drive shaft 14 inside the coarse filter screen cover 29, the flame retardant and the coarsely filtered asphalt are mixed and stirred by the stirring rod 24 to form flame-retardant mastic. Then, the flame-retardant mastic is conveyed to one end of the coarse filter screen cover 29 by the spiral blade 23, enabling the flame-retardant mastic to enter the interior of the fine filter sleeve 33. After fine filtration in the fine filter sleeve 33, the flame-retardant mastic can be discharged through the discharge pipe 5.

[0025] As Figure 2 , Figure 3 , Figure 5 and Figure 8 shown, the cleaning component includes a plurality of annular rings 22. The plurality of annular rings 22 are evenly fixed on the outer surface of the drive shaft 14 and are all located inside the fine filter sleeve 33. A hollow cavity 20 is formed in the middle of the interior of the drive shaft 14. Suction pipes 25 are fixed on the outer surfaces of the plurality of annular rings 22. One end of each of the plurality of suction pipes 25 is correspondingly communicated with the interior of the hollow cavity 20. Sealing rings 47 are fixed between the inner walls of the plurality of suction pipes 25 near the top edge. Bottom rings 26 are fixed in the middle between the inner walls of the plurality of suction pipes 25. Sealing blocks 27 are arranged inside the plurality of suction pipes 25. The tops of the plurality of sealing blocks 27 are hermetically fitted with the bottoms of the sealing rings 47 correspondingly. Springs 28 are fixed to the bottoms of the plurality of sealing blocks 27. The bottoms of the plurality of springs 28 are correspondingly fixed to the tops of the bottom rings 26. An air passage 18 is formed in the inner bottom surface of the fixing ring 13. One end of the air passage 18 penetrates through the outer surface of the mixing cylinder 1. A flexible hose 11 is fixed to the outer surface of the mixing cylinder 1. The flexible hose 11 is communicated with the air passage 18. A plurality of side ports 21 are equidistantly formed between the inner walls of the hollow cavity 20 near one side of the fixing ring 13. The plurality of side ports 21 all penetrate through the outer surface of the drive shaft 14. The plurality of side ports 21 are all located inside the fixing ring 13 and are communicated with the air passage 18 on one side of the air passage 18. A limiting ring 19 is rotatably arranged on the outer surface of the drive shaft 14 near the other side of the fixing ring 13. A Z-shaped groove 9 is formed in the outer surface of the mixing cylinder 1. A shifting rod 10 is arranged inside the Z-shaped groove 9. One end of the shifting rod 10 is fixed to the outer surface of the limiting ring 19.

[0026] The achieved effect is that since the fine filter sleeve 33 filters the flame-retardant mastic through the inner surface, the fine particles generated by the filtration will adhere to the inner wall of the fine filter sleeve 33. The fine filter sleeve 33 is fixedly installed inside the mixing cylinder 1 between the support ring 12 and the fixed ring 13, so it is very difficult to disassemble and clean. At this time, the cleaning component provided on the drive shaft 14 can well clean the inner wall of the fine filter sleeve 33. When cleaning, first, the discharge pipe 5 needs to be closed, and at the same time, clean cleaning liquid is continuously injected into the mixing cylinder 1 from the feed pipe 4, and the hose 11 is connected to the external negative pressure pipeline. Then, the lever 10 is slowly slid from one end of the Z-shaped groove 9 to the other end. During the sliding process, the drive shaft 14 will be pushed towards the motor 3 side through the limit ring 19. After being pushed, one end of the drive shaft 14 will disengage from the inside of the hexagonal groove 48. At this time, when the mixing component works, it cannot drive the feeding component to work. At the same time, during the sliding process, a plurality of side ports 21 will communicate with the air duct 18. At this time, under the adsorption force of the external negative pressure pipeline, the sealing block 27 can be adsorbed and slid downward, thereby opening the opening of the suction pipe 25, so that a plurality of suction pipes 25 generate an adsorption force. The generation of the adsorption force can adsorb the liquid inside the fine filter sleeve 33 towards the hollow cavity 20. During the adsorption and discharge process, since the drive shaft 14 slides towards the motor 3 side under the slow push of the lever 10, a plurality of suction pipes 25 will also slowly slide towards one side inside the fine filter sleeve 33. During the sliding process, a plurality of suction pipes 25 will completely slide along the inner wall of the fine filter sleeve 33, thereby adsorbing and taking away the fine particles on the inner wall of the fine filter sleeve 33, achieving the purpose of cleaning the inner wall of the fine filter sleeve 33. The liquid adsorbed into the hollow cavity 20 will flow into the hose 11 through the side ports 21 and the air duct 18 for discharge purposes.

[0027] For example, in one embodiment, the present invention further provides a production method of flame-retardant mastic, which is applied to a production device of flame-retardant mastic as described above, and includes the following steps: Step S1: Supply asphalt to the inside of the mixing cylinder 1 through the feed pipe 4, and then intermittently supply the flame retardant to the inside of the mixing cylinder in small doses through the feeding device, and mix the asphalt and the flame retardant with the mixing component to form flame-retardant mastic. During the process of supplying asphalt, the asphalt will be roughly filtered and finely filtered to remove the particulate impurities inside the asphalt, and finally, the fine particles on the inner wall of the fine filter sleeve 33 can be removed through the cleaning component, ensuring the permeability of the filter screen; Step S2: When the feeding assembly is working, the docking port 39 will overlap with the feeding port 38 once for each rotation of the driving disc 37. During the overlapping period, the flame retardant in the docking tube 7 can flow into the interior of the mixing barrel 1 through the docking port 39, thereby achieving the purpose of intermittent feeding of small doses. When the driving disc 37 rotates, the bridge gear 40 is respectively meshed with the inner gear ring 42 and the outer gear ring 41, so the driving ring 32 can be driven to rotate. When the driving ring 32 rotates, the scraper 31 will slide along the outer surface of the coarse filter screen cover 29 to scrape off the larger impurities filtered on the outer surface of the coarse filter screen cover 29. Step S3: When the mixing assembly is working, the asphalt enters the mixing barrel 1 through the feed pipe 4, and the asphalt is first filtered through the coarse filter cover 29 inside the mixing barrel 1. The filtered asphalt enters the coarse filter cover 29, and then the motor 3 can drive the drive shaft 14 to rotate. During the rotation of the drive shaft 14, the flame retardant and the coarsely filtered asphalt are mixed and stirred by the stirring rod 24 inside the coarse filter cover 29 to form flame retardant mastic; Step S4: When cleaning, the discharge pipe 5 must be closed first, and clean cleaning liquid is continuously injected into the mixing barrel 1 from the feed pipe 4, and the hose 11 is connected to the external negative pressure pipeline. Then, the lever 10 is slowly slid from one end of the Z-shaped groove 9 to the other end. During the sliding process, the multiple side ports 21 are interconnected with the airway 18. At this time, the sealing block 27 can be sucked and slid downward under the adsorption force of the external negative pressure pipeline, thereby opening the opening of the suction pipe 25, so that the multiple suction pipes 25 generate suction. The adsorption force can absorb the liquid inside the fine filter mesh sleeve 33 into the hollow cavity 20. During the adsorption and discharge process, the driving shaft 14 slides toward the side of the motor 3 under the slow movement of the lever 10, so the multiple suction pipes 25 will also slowly slide to one side on the inner side of the fine filter mesh sleeve 33. During the sliding process, the multiple suction pipes 25 will completely slide along the inner wall of the fine filter mesh sleeve 33, thereby adsorbing and taking away the fine particles on the inner wall of the fine filter mesh sleeve 33, thereby achieving the purpose of cleaning the inner wall of the fine filter mesh sleeve 33.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A production device for flame-retardant mastic, characterized in that, It includes a mixing cylinder (1). One side of the mixing cylinder (1) is provided with an end cover (2). One side of the end cover (2) is provided with a transmission groove (35). Inside the transmission groove (35) is provided a feeding component. Between the inner walls of the mixing cylinder (1) near one side of the end cover (2) is provided a support ring (12). The other end of the mixing cylinder (1) is provided with a motor (3). Between the inner walls of the mixing cylinder (1) near the other end is provided a fixing ring (13). The output end of the motor (3) is provided with a mixing component. At the top of the mixing cylinder (1) between the end cover (2) and the support ring (12) is communicated with a feeding pipe (4). At the bottom of the mixing cylinder (1) between the support ring (12) and the fixing ring (13) is communicated with a discharging pipe (5). On the inner bottom surface of the mixing cylinder (1) on one side of the end cover (2) is provided a sedimentation tank (6). Between the inner walls of the sedimentation tank (6) near the bottom edge is slidably connected with a pull-out cover plate (8).

2. The production device of a flame-retardant mastic according to claim 1, characterized in that: On the inner bottom surface of the transmission groove (35) are equidistantly fixed three columns (36) along the circumferential direction. Between the tops of the three columns (36) is fixed an annular support plate (43). On the top of the annular support plate (43) is provided an annular limiting groove (46). Inside the mixing cylinder (1) on one side of the support ring (12) is provided a coarse filter screen cover (29). One end of the coarse filter screen cover (29) is clamped inside the annular limiting groove (46). The other end of the coarse filter screen cover (29) is bent and extends between the inner walls of the support ring (12).

3. The production device of a flame-retardant mastic according to claim 2, characterized in that: On the outer surface of the coarse filter screen cover (29) near the edge of the other end is fixed a rubber ring (30). Between the inner walls of the support ring (12) is provided a sealing ring (34). The rubber ring (30) is in sealing fit with the sealing ring (34). Between the opposite sides of the support ring (12) and the fixing ring (13) is provided a fine filter screen sleeve (33). The inner wall of the fine filter screen sleeve (33) is flush with the inner wall of the support ring (12). The fine filter screen sleeve (33) and the closed end of the coarse filter screen cover (29) are interconnected through the inside of the support ring (12).

4. The production device of a flame-retardant mastic according to claim 3, characterized in that: The feeding component includes a driving disk (37). In the middle of the inner bottom surface of the transmission groove (35) is provided a clamping groove (45). The driving disk (37) is located inside the transmission groove (35), and the middle of the bottom of the driving disk (37) is rotationally clamped inside the clamping groove (45). The bottom of the driving disk (37) is in contact with the inner bottom surface of the transmission groove (35). On one side of the end cover (2) is provided a feeding port (38) penetrating through to the inside of the transmission groove (35). On the bottom of the driving disk (37) is provided an interface (39) penetrating through to the top. The interface (39) is communicated with the feeding port (38).

5. The production device of a flame-retardant mastic according to claim 4, characterized in that: One side of the end cover (2) is fixed with a docking pipe (7), the feed inlet (38) is communicated with the docking pipe (7), the outer surface of the driving disk (37) is hermetically and slidably fitted with the inner side of the annular support plate (43), an external gear ring (41) is fixed at the outer surface of the driving disk (37) near the bottom edge, an external annular clamping groove (44) is formed at the inner bottom surface of the transmission groove (35) near the edge, a driving ring (32) is rotatably arranged between the inner walls of the transmission groove (35), the bottom of the driving ring (32) is slidably clamped inside the external annular clamping groove (44), the top of the driving ring (32) extends to the outside of the coarse filter screen cover (29), the outer surface of the driving ring (32) is hermetically and slidably fitted with the inner wall of the transmission groove (35), the inner surface of the driving ring (32) is hermetically and slidably fitted with the outer surface of the annular support plate (43), an internal gear ring (42) is fixed at the inner surface of the driving ring (32) near the bottom edge, a bridging gear (40) is rotatably arranged between the inner bottom surface of the transmission groove (35) and the bottom of the annular support plate (43), the bridging gear (40) is meshed with the internal gear ring (42) and the external gear ring (41) respectively, three scraping plates (31) are equidistantly fixed at the top of the driving ring (32), one side outer surfaces of the three scraping plates (31) are all fitted with the outer surface of the coarse filter screen cover (29), and a hexagonal groove (48) is formed at the top of the driving disk (37).

6. The production device of a flame-retardant mastic according to claim 5, characterized in that: The mixing component includes a driving shaft (14), a cleaning and decontamination component is arranged on the driving shaft (14), the driving shaft (14) is located inside the mixing cylinder (1), the outer surface of the driving shaft (14) is slidably fitted with the outer surface of the bent part at the other end of the coarse filter screen cover (29), the outer surface of the driving shaft (14) is located inside the support ring (12), the outer surface of the driving shaft (14) is hermetically and slidably fitted with the inner wall of the fixed ring (13), one end of the driving shaft (14) is clamped inside the hexagonal groove (48), a cylindrical cavity (16) is formed at the other end of the driving shaft (14), an internal hexagonal sleeve ring (17) is fixed at the middle between the inner walls of the cylindrical cavity (16), a hexagonal column (15) is slidably arranged between the inner walls of the internal hexagonal sleeve ring (17), and one end of the hexagonal column (15) is fixed to the output end of the motor (3).

7. The production device of a flame-retardant mastic according to claim 6, characterized in that: A plurality of stirring rods (24) are equidistantly fixed on the outer surface of the driving shaft (14) along the circumferential direction near one end edge, the plurality of stirring rods (24) are all correspondingly located at one side of the end cover (2), a spiral blade (23) is fixed on the outer surface of the driving shaft (14), the spiral blade (23) is located at one side of the stirring rods (24), and the spiral blade (23) and the plurality of stirring rods (24) are all located inside the coarse filter screen cover (29).

8. The production device of a flame-retardant mastic according to claim 7, characterized in that: The cleaning component includes a plurality of annular rings (22), and the plurality of annular rings (22) are evenly and fixedly arranged on the outer surface of the drive shaft (14) and are all located inside the fine filter mesh sleeve (33). A hollow cavity (20) is formed in the middle of the drive shaft (14). Suction pipes (25) are fixedly arranged on the outer surfaces of the plurality of annular rings (22). One ends of the plurality of suction pipes (25) are correspondingly communicated with the inside of the hollow cavity (20). Sealing rings (47) are fixedly arranged between the inner walls of the plurality of suction pipes (25) near the top edge. Bottom rings (26) are fixedly arranged between the inner walls of the plurality of suction pipes (25) at the middle positions. Sealing blocks (27) are arranged inside the plurality of suction pipes (25). The tops of the plurality of sealing blocks (27) are hermetically attached to the bottoms of the sealing rings (47). Springs (28) are fixedly arranged at the bottoms of the plurality of sealing blocks (27). The bottoms of the plurality of springs (28) are correspondingly fixed to the tops of the bottom rings (26).

9. The production device of a flame-retardant mastic according to claim 8, wherein: An air duct (18) is formed in the inner bottom surface of the fixing ring (13). One end of the air duct (18) penetrates through the outer surface of the mixing cylinder (1). A hose (11) is fixedly arranged on the outer surface of the mixing cylinder (1). The hose (11) is communicated with the air duct (18). A plurality of side ports (21) are evenly formed between the inner walls of the hollow cavity (20) near one side of the fixing ring (13). The plurality of side ports (21) penetrate through the outer surface of the drive shaft (14). The plurality of side ports (21) are all located inside the fixing ring (13) and are communicated with the air duct (18) on one side of the air duct (18). A limiting ring (19) is rotatably arranged on the outer surface of the drive shaft (14) near the other side of the fixing ring (13). A Z-shaped groove (9) is formed in the outer surface of the mixing cylinder (1). A shift lever (10) is arranged inside the Z-shaped groove (9). One end of the shift lever (10) is fixed to the outer surface of the limiting ring (19).

10. A production method of a flame-retardant mastic, which is applied to a production device of a flame-retardant mastic as described in any one of claims 1-9, characterized in that, It includes the following steps: Step S1: Supply asphalt to the inside of the mixing cylinder (1) through the feed pipe (4), and then intermittently supply the flame retardant to the inside of the mixing cylinder in small doses through the feeding device, and mix the asphalt and the flame retardant with each other through the mixing component to form flame-retardant mastic. During the process of supplying asphalt, the asphalt will be roughly filtered and finely filtered to remove the granular impurities inside the asphalt, and finally the fine particles on the inner wall of the fine filter mesh sleeve (33) can be removed through the cleaning component, ensuring the permeability of the filter screen; Step S2: When the feeding assembly is working, the docking port (39) will overlap with the feeding port (38) once for each rotation of the driving disc (37). During the overlapping period, the flame retardant in the docking tube (7) can flow into the interior of the mixing barrel (1) through the docking port (39), thereby achieving the purpose of intermittent feeding of small doses. When the driving disc (37) rotates, the bridge gear (40) is respectively meshed with the inner gear ring (42) and the outer gear ring (41), so that the driving ring (32) can be driven to rotate. When the driving ring (32) rotates, the scraper (31) slides along the outer surface of the coarse filter screen (29) to scrape off larger impurities filtered by the outer surface of the coarse filter screen (29); Step S3: When the mixing assembly is working, asphalt enters the interior of the mixing barrel (1) through the feed pipe (4), and the asphalt inside the mixing barrel (1) is first filtered through the coarse filter screen (29), and the filtered asphalt enters the interior of the coarse filter screen (29), and then the motor (3) can drive the drive shaft (14) to rotate. During the rotation of the drive shaft (14), the flame retardant and the coarsely filtered asphalt are mixed and stirred inside the coarse filter screen (29) by the stirring rod (24) to form flame retardant mastic; Step S4: When cleaning, the discharge pipe (5) must first be closed, and clean cleaning liquid must be continuously injected into the interior of the mixing barrel (1) from the feed pipe (4), and the hose (11) must be connected to the external negative pressure pipe. Then, the lever (10) must be slowly slid from one end of the Z-shaped groove (9) to the other end. During the sliding process, the plurality of side openings (21) will be interconnected with the airway (18). At this time, the sealing block (27) can be sucked and slid downward under the adsorption force of the external negative pressure pipe, thereby opening the opening of the suction pipe (25), so that the plurality of suction pipes (25) can generate suction. The adsorption force can absorb the liquid inside the fine filter mesh sleeve (33) into the hollow cavity (20). During the adsorption and discharge process, the driving shaft (14) slides toward the side of the motor (3) under the slow movement of the lever (10). Therefore, the plurality of suction pipes (25) also slowly slide toward one side on the inner side of the fine filter mesh sleeve (33). During the sliding process, the plurality of suction pipes (25) completely slide along the inner wall of the fine filter mesh sleeve (33), thereby adsorbing and taking away the fine particles on the inner wall of the fine filter mesh sleeve (33), thereby achieving the purpose of cleaning the inner wall of the fine filter mesh sleeve (33).

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