A device and method for producing a flame-retardant melamine resin

Abstract

The present application belongs to the technical field of processing of flame-retardant asphalt, and discloses a production device and method of flame-retardant asphalt, which comprises a mixing cylinder, one side of the mixing cylinder is provided with an end cover, a transmission groove is formed in one side of the end cover, a feeding assembly is arranged in the transmission groove, a supporting ring is arranged between the inner wall of the mixing cylinder and the side close to the end cover, and a motor is arranged at the other end of the mixing cylinder; the asphalt is supplied into the mixing cylinder through the feeding pipe, then the flame retardant is supplied into the mixing cylinder in small doses intermittently through the feeding device, and the asphalt and the flame retardant are mixed with each other to form the flame-retardant asphalt by cooperating with the mixing assembly; the asphalt is coarsely filtered and finely filtered during the supply of the asphalt, the granular impurities in the asphalt are removed, and finally the fine particles on the inner wall of the fine filter screen cover can be removed by the cleaning assembly, so that the permeability of the filter screen is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flame-retardant mastic asphalt processing, and particularly relates to a production device and method of flame-retardant mastic asphalt. BACKGROUND

[0002] The flame-retardant mastic asphalt is made of petroleum asphalt as a base material, fillers such as minerals, and appropriate amounts of flame retardants and plasticizers, and has the characteristics of air tightness, waterproofness, freeze resistance, corrosion resistance, non-aging cracking, cold construction at room temperature, and flame retardance after drying. It is an ideal cold insulation coating for matching with foam glass, polyurethane and other thermal insulation materials in petrochemical industries to achieve cold insulation, waterproofness, fireproofness and moisture resistance.

[0003] In the processing of the flame-retardant mastic asphalt, the asphalt needs to be mixed with appropriate amounts of flame retardants, but the added asphalt contains a small amount of particulate impurities, which can cause the mixed flame-retardant mastic asphalt to be unable to be applied flat during brushing, and the accumulation of impurities in the mixing equipment can cause poor flowability in the equipment, affecting the production efficiency of the flame-retardant mastic asphalt. SUMMARY

[0004] The present application provides a production device and method of flame-retardant mastic asphalt to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a production device of flame-retardant mastic asphalt, comprising a mixing cylinder, one side of the mixing cylinder is provided with an end cover, one side of the end cover is provided with a transmission groove, the inside of the transmission groove is provided with a feeding assembly, the inner wall of the mixing cylinder between the one side close to the end cover is provided with a support ring, the other end of the mixing cylinder is provided with a motor, the inner wall of the mixing cylinder between the other end is provided with a fixed ring, and the output end of the motor is provided with a mixing assembly.

[0006] The top of the mixing cylinder between the end cover and the support ring is communicated with a feeding pipe, the bottom of the mixing cylinder between the support ring and the fixed ring is communicated with a discharging pipe, the inside bottom surface of the mixing cylinder on one side of the end cover is provided with a deposition groove, and the inner wall of the deposition groove close to the bottom edge is slidably connected with a pull-off cover plate.

[0007] Preferably, the inside bottom surface of the transmission groove is fixed with three vertical columns equidistantly along the circumferential direction, the top of the three vertical columns is fixed with an annular support plate, the top of the annular support plate is provided with an annular limiting groove, the inside of the annular limiting groove is clamped with one end of a coarse filter screen cover, the other end of the coarse filter screen cover is bent, and extends to the inner wall between the support ring.

[0008] Preferably, the outer surface of the coarse filter cover is fixed with a rubber ring near the other end edge, the inner wall of the support ring is provided with a sealing ring, the rubber ring and the sealing ring are sealingly attached, the support ring and the opposite side of the fixed ring are provided with a fine filter net cover, the inner wall of the fine filter net cover is flush with the inner wall of the support ring, and the fine filter net cover and the closed end of the coarse filter cover are connected through the inside of the support ring.

[0009] 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 in the inside of the transmission groove, and the middle of the bottom of the driving disc is rotationally clamped in the inside of the clamping groove, the bottom of the driving disc and the inner bottom surface of the transmission groove are attached to each other, a feeding port is formed in one side of the end cover and penetrates to the inside of the transmission groove, and a butt joint port is formed in the bottom of the driving disc and penetrates to the top.

[0010] Preferably, one side of the end cover is fixed with a butt joint pipe, the feeding port and the butt joint pipe are connected to each other, the outer surface of the driving disc and the inner side of the annular support plate are sealingly and slidingly attached, the outer surface of the driving disc is fixed with an outer gear ring near the bottom edge, an outer annular clamping groove is formed in the inner bottom surface of the transmission groove near the edge, a driving ring is rotationally arranged between the inner walls of the transmission groove, the bottom of the driving ring is slidingly clamped in the inside of the outer 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 and the inner walls of the transmission groove are sealingly and slidingly attached, the inner walls of the driving ring and the outer surface of the annular support plate are sealingly and slidingly attached, the inner walls of the driving ring are fixed with an inner gear ring near the bottom edge, a bridging gear is rotationally arranged between the inner bottom surface of the transmission groove and the bottom of the annular support plate, the bridging gear is meshed with the inner gear ring and the outer gear ring respectively, the top of the driving ring is fixed with three scrapers equidistantly, the outer surface of one side of the three scrapers is attached to the outer surface of the coarse filter cover, and a hexagonal groove is formed in the top of the driving disc.

[0011] Preferably, the mixing assembly includes a driving shaft, the driving shaft is provided with a cleaning assembly, the driving shaft is located in the inside of the mixing barrel, the outer surface of the driving shaft is slidingly attached to the outer surface of the bending part of the other end of the coarse filter cover, the outer surface of the driving shaft is located in the inside of the support ring, the outer surface of the driving shaft and the inner wall of the fixed ring are sealingly and slidingly attached, one end of the driving shaft is clamped in the inside of the hexagonal groove, the other end of the driving shaft is provided with a cylindrical cavity, an inner hexagonal collar is fixed between the inner walls of the cylindrical cavity in the middle, a hexagonal column is slidingly arranged between the inner walls of the inner hexagonal collar, and one end of the hexagonal column is fixed to the output end of the motor.

[0012] Preferably, a plurality of stirring rods are fixed equidistantly on the outer surface of the driving shaft in the circumferential direction near one end edge, the plurality of stirring rods are located on one side of the end cover correspondingly, the outer surface of the driving shaft is fixed with a helical blade, the helical blade is located on one side of the stirring rod, and the helical blade and the plurality of stirring rods are located in the inside of the coarse filter cover.

[0013] Preferably, the cleaning assembly comprises a plurality of annular rings, which are fixed on the outer surface of the driving shaft at equal intervals and are located inside the fine filter screen cover, a hollow cavity is formed in the middle of the inner part of the driving shaft, the outer surface of each annular ring is fixed with a suction pipe, one end of each suction pipe is connected to the inside of the hollow cavity, a sealing ring is fixed on the inner wall of each suction pipe near the top edge, a bottom ring is fixed on the inner wall of each suction pipe in the middle, a sealing block is arranged in the inside of each suction pipe, the top of each sealing block is sealed and fitted with the bottom of the sealing ring, the bottom of each sealing block is fixed with a spring, and the bottom of each spring is fixed to the top of the bottom ring.

[0014] Preferably, the inner bottom surface of the fixing ring is provided with an air channel, one end of the air channel penetrates the outer surface of the mixing barrel, the outer surface of the mixing barrel is fixed with a hose, the hose and the air channel are in communication with each other, a plurality of side openings are formed at equal intervals between the inner walls of the hollow cavity near the side of the fixing ring, the plurality of side openings penetrate the outer surface of the driving shaft, the plurality of side openings are located inside the fixing ring and are in communication with the air channel on one side of the air channel, a limiting ring is rotatably arranged on the outer surface of the driving shaft near the other side of the fixing ring, the outer surface of the mixing barrel is provided with a Z-shaped groove, and a push rod is arranged in the Z-shaped groove.

[0015] The application also provides a production method of the flame-retardant asphalt, which is applied to the production device of the flame-retardant asphalt.

[0016] Step S1: The asphalt is supplied into the inside of the mixing barrel through the feeding pipe, then the flame retardant is intermittently supplied into the inside of the mixing barrel in small doses through the feeding device, and the asphalt and the flame retardant are mixed with each other to form the flame-retardant asphalt by cooperating with the mixing assembly, the asphalt is coarsely filtered and finely filtered in the process of supplying the asphalt, the granular impurities in the asphalt are removed, and finally the fine particles on the inner wall of the fine filter screen cover are removed by the cleaning assembly, so that the permeability of the filter screen is ensured.

[0017] Step S2: When the feeding assembly works, the abutting port and the feeding port are coincided with each other once in the process of rotating the driving disc by one revolution, the flame retardant in the abutting pipe can flow into the inside of the mixing barrel through the abutting port in the coinciding period, so that the purpose of intermittent feeding in small doses is achieved, and when the driving disc rotates, the driving ring can be driven to rotate because the bridging gear is meshed with the inner tooth ring and the outer tooth ring, respectively, so that the scraper slides along the outer surface of the coarse filter screen cover and scrapes off the larger impurities filtered on the outer surface of the coarse filter screen cover.

[0018] Step S3: when the mixing assembly is working, the asphalt enters the inside of the mixing cylinder through the feeding pipe, and is first filtered by the coarse filter cover in the inside of the mixing cylinder, then enters the inside of the coarse filter cover, and then the driving shaft is driven to rotate by the motor, and the flame retardant and the coarsely filtered asphalt are mixed and stirred by the stirring rod in the inside of the coarse filter cover to form the flame-retardant asphalt;

[0019] Step S4: when cleaning, the discharge pipe needs to be closed first, clean washing liquid is continuously injected into the inside of the mixing cylinder from the feeding pipe, the hose is connected with the external negative pressure pipeline, then the lever is slowly slid from one end of the Z-shaped groove to the other end, the plurality of side openings are communicated with the air duct during the sliding process, the sealing block is attracted and slid downward under the action of the adsorption force of the external negative pressure pipeline, the opening of the suction pipe is opened, and the plurality of suction pipes generate the adsorption force, the adsorption force can attract the liquid in the inside of the fine filter cover to the hollow cavity, and in the process of adsorption and discharge, the driving shaft slides to the motor side under the slow driving of the lever, so that the plurality of suction pipes slowly slide to one side in the inside of the fine filter cover, and the plurality of suction pipes slide along the inner wall of the fine filter cover, so that the fine particles on the inner wall of the fine filter cover are attracted and taken away, and the purpose of cleaning the inner wall of the fine filter cover is achieved.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] 1、The present application supplies the asphalt into the inside of the mixing cylinder through the feeding pipe, then supplies the flame retardant into the inside of the mixing cylinder in small doses intermittently through the feeding device, and mixes the asphalt and the flame retardant to form the flame-retardant asphalt by cooperating with the mixing assembly, the asphalt is coarsely filtered and finely filtered in the process of supplying the asphalt, the granular impurities in the asphalt are removed, and finally the fine particles on the inner wall of the fine filter cover are removed by the cleaning assembly, so that the permeability of the filter screen is ensured.

[0022] 2、In the present application, when the feeding assembly is working, the abutting port coincides with the feeding port once every rotation of the driving disc, and the flame retardant in the abutting pipe can flow into the inside of the mixing cylinder through the abutting port in the coinciding period, so that the purpose of small-dose intermittent feeding is achieved.

[0023] 3、In the present application, when the mixing assembly is working, the flame retardant and the coarsely filtered asphalt are mixed and stirred by the stirring rod to form the flame-retardant asphalt, and then the flame-retardant asphalt is conveyed to one end of the coarse filter cover by the spiral blade, so that the flame-retardant asphalt enters the inside of the fine filter cover.

[0024] 4、The clean-up assembly in the application can slide down under the adsorption of the external negative pressure pipeline, and then the opening of the material suction pipe is opened, so that the adsorption force is generated in the plurality of material suction pipes, the adsorption force can adsorb the liquid in the fine filter mesh cover to the hollow cavity, thereby adsorbing the fine particles on the inner wall of the fine filter mesh cover, and the purpose of cleaning the inner wall of the fine filter mesh cover is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A side view of the production device for the flame-retardant mastic asphalt is provided for the application;

[0026] Figure 2 A bottom view of the production device for the flame-retardant mastic asphalt is provided for the application;

[0027] Figure 3 A sectional view of the production device for the flame-retardant mastic asphalt is provided for the application;

[0028] Figure 4 A front view of the end cover and the coarse filter cover in the production device for the flame-retardant mastic asphalt is provided for the application;

[0029] Figure 5 A sectional view of the transmission shaft in the production device for the flame-retardant mastic asphalt is provided for the application;

[0030] Figure 6 A sectional view of the end cover and the coarse filter cover in the production device for the flame-retardant mastic asphalt is provided for the application;

[0031] Figure 7 A partial enlarged view of A in the application; Figure 3

[0032] A partial enlarged view of B in the application; Figure 8 Figure 5 A partial enlarged view of C in the application;

[0033] Figure 9 Figure 6 A partial enlarged view of C in the application.

[0034] ​​In the figure: 1, mixing cylinder; 2, end cover; 3, motor; 4, feeding pipe; 5, discharging pipe; 6, deposition tank; 7, butt joint pipe; 8, pull cover plate; 9, Z-shaped groove; 10, push rod; 11, hose; 12, support ring; 13, fixed ring; 14, drive shaft; 15, hexagonal column; 16, cylindrical cavity; 17, internal hex socket; 18, air channel; 19, limiting ring; 20, hollow cavity; 21, side opening; 22, annular ring; 23, helical 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 cover; 34, sealing ring; 35, transmission groove; 36, stand column; 37, drive disc; 38, feeding port; 39, butt joint port; 40, bridging gear; 41, outer tooth ring; 42, inner tooth ring; 43, annular support plate; 44, outer annular clamping groove; 45, clamping groove; 46, annular limiting groove; 47, sealing ring; 48, hexagonal groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] Please refer to Figures 1-9 The present application provides a technical solution: a production device for flame-retardant rubber, comprising 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, the inside of the transmission groove 35 is provided with a feeding assembly, the inner wall of the mixing cylinder 1 is provided with a support ring 12 near the side of the end cover 2, the other end of the mixing cylinder 1 is provided with a motor 3, the inner wall of the mixing cylinder 1 is provided with a fixed ring 13 near the other end, and the output end of the motor 3 is provided with a mixing assembly;

[0037] The top of the mixing barrel 1 is communicated with the feeding pipe 4 between the end cover 2 and the supporting ring 12, the bottom of the mixing barrel 1 is communicated with the discharging pipe 5 between the supporting ring 12 and the fixing ring 13, the inner bottom surface of the mixing barrel 1 is provided with the sedimentation groove 6 on one side of the end cover 2, the inner wall of the sedimentation groove 6 is slidably connected with the pull cover plate 8 near the bottom edge, the inner bottom surface of the transmission groove 35 is fixed with three vertical columns 36 equidistantly in the circumferential direction, the top of the three vertical columns 36 is fixed with the annular supporting plate 43, the top of the annular supporting plate 43 is provided with the annular limiting groove 46, the inside of the mixing barrel 1 is provided with the coarse filter cover 29 on one side of the supporting ring 12, one end of the coarse filter cover 29 is clamped in the inside of the annular limiting groove 46, the other end of the coarse filter cover 29 is bent and extends to the inner wall of the supporting ring 12, the outer surface of the coarse filter cover 29 is fixed with the rubber ring 30 near the other end edge, the inner wall of the supporting ring 12 is provided with the sealing ring 34, the rubber ring 30 is sealingly attached to the sealing ring 34, the opposite side of the supporting ring 12 and the fixing ring 13 is provided with the fine filter cover 33, the inner wall of the fine filter cover 33 is flush with the inner wall of the supporting ring 12, the fine filter cover 33 and the closed end of the coarse filter cover 29 are communicated with each other through the inner side of the supporting ring 12.

[0038] The asphalt enters the inside of the mixing barrel 1 through the feeding pipe 4, the asphalt is firstly filtered through the coarse filter cover 29 in the mixing barrel 1, the filtered asphalt enters the inside of the coarse filter cover 29 and is supplied with the fire retardant in small doses intermittently through the feeding device, then the fire retardant and the coarsely filtered asphalt are mixed and stirred through the mixing assembly to form the fire-retardant asphalt, then the fire-retardant asphalt is transported to one end of the coarse filter cover 29 through the spiral blade 23, so that the fire-retardant asphalt enters the inside of the fine filter cover 33, after the fine filtration of the fine filter cover 33, the fire-retardant asphalt can be discharged through the discharging pipe 5, and the fine particles on the inner wall of the fine filter cover 33 can be removed through the pollution removal assembly, so as to ensure the permeability of the filter screen.

[0039] As Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 9As shown, the feeding assembly comprises a driving disc 37, the inner bottom surface of the transmission groove 35 is provided with a clamping groove 45 at the middle, the driving disc 37 is located in the inside of the transmission groove 35, and the bottom middle of the driving disc 37 is rotationally clamped in the inside of the clamping groove 45, the bottom of the driving disc 37 and the inner bottom surface of the transmission groove 35 are mutually attached, one side of the end cover 2 is provided with a feeding port 38 penetrating into the inside of the transmission groove 35, the bottom of the driving disc 37 is provided with a butt joint 39 penetrating to the top, the butt joint 39 and the feeding port 38 are mutually communicated, one side of the end cover 2 is fixed with a butt joint pipe 7, the feeding port 38 and the butt joint pipe 7 are mutually communicated, the outer surface of the driving disc 37 and the inner side of the annular supporting plate 43 are sealingly and slidingly attached, the outer surface of the driving disc 37 is fixed with an outer gear ring 41 near the bottom edge, the inner bottom surface of the transmission groove 35 is provided with an outer annular clamping groove 44 near the edge, the inner wall of the transmission groove 35 is rotationally provided with a driving ring 32, the bottom of the driving ring 32 is slidingly clamped in the inside of the outer annular clamping groove 44, the top of the driving ring 32 extends to the outside of the coarse filter cover 29, the outer surface of the driving ring 32 and the inner wall of the transmission groove 35 are sealingly and slidingly attached, the inner wall of the driving ring 32 and the outer surface of the annular supporting plate 43 are sealingly and slidingly attached, the inner wall of the driving ring 32 is fixed with an inner gear ring 42 near the bottom edge, the inner bottom surface of the transmission groove 35 and the bottom of the annular supporting plate 43 are rotationally provided with a bridging gear 40, the bridging gear 40 is mutually meshed with the inner gear ring 42 and the outer gear ring 41 respectively, the top of the driving ring 32 is fixed with three scrapers 31 equidistantly, the outer surface of one side of the three scrapers 31 is mutually attached with the outer surface of the coarse filter cover 29, the top of the driving disc 37 is provided with a hexagonal groove 48.

[0040] Firstly, the butt joint pipe 7 is connected with the pipeline externally supplying the flame retardant, the feeding assembly is driven by the driving shaft 14 in the mixing assembly to work, since one end of the driving shaft 14 is mutually clamped with the hexagonal groove 48 on the driving disc 37, the driving disc 37 can be driven to rotate when the driving shaft 14 rotates, the butt joint 39 will coincide with the feeding port 38 once in the coinciding time period when the driving disc 37 rotates one circle, the flame retardant in the butt joint pipe 7 can flow into the inside of the mixing cylinder 1 through the butt joint 39 in the coinciding time period, thereby achieving the purpose of small-dose intermittent feeding, and since the bridging gear 40 is mutually meshed with the inner gear ring 42 and the outer gear ring 41 respectively when the driving disc 37 rotates, the driving ring 32 can be driven to rotate, the scraper 31 will slide along the outer surface of the coarse filter cover 29 when the driving ring 32 rotates, and the larger impurities filtered by the outer surface of the coarse filter cover 29 are scraped off, since the weight of the impurities is larger, the scraped-off impurities will deposit in the inside of the deposition groove 6, and finally only need to pull out the pull-out cover plate 8 from the bottom of the deposition groove 6 to clean the larger impurities in the inside of the deposition groove 6.

[0041] As Figure 2 , Figure 3 ,Figure 5 and Figure 7 As shown in the figure, the mixing assembly comprises a drive shaft 14, the drive shaft 14 is provided with a cleaning assembly, the drive shaft 14 is located in the inside of the mixing barrel 1, the outer surface of the drive shaft 14 is in sliding fit with the outer surface of the bending part of the other end of the coarse filter cover 29, the outer surface of the drive shaft 14 is located on the inside of the support ring 12, the outer surface of the drive shaft 14 is in sealing sliding fit with the inner wall of the fixed ring 13, one end of the drive shaft 14 is clamped in the inside of the hexagonal groove 48, the other end of the drive shaft 14 is provided with a cylindrical cavity 16, the inner wall of the cylindrical cavity 16 is fixed with an inner hexagonal collar 17 in the middle, the inner hexagonal collar 17 is provided with a hexagonal column 15 in sliding fit between the inner walls, one end of the hexagonal column 15 is fixed to the output end of the motor 3, a plurality of stirring rods 24 are fixed on the outer surface of the drive shaft 14 at equal intervals in the circumferential direction near the edge of one end, the plurality of stirring rods 24 are located on one side of the end cover 2, the outer surface of the drive shaft 14 is fixed with a helical blade 23, the helical blade 23 is located on one side of the stirring rod 24, and the helical blade 23 and the plurality of stirring rods 24 are located in the inside of the coarse filter cover 29.

[0042] The effect achieved is that the asphalt enters the inside of the mixing barrel 1 through the feed pipe 4, the asphalt is first filtered by the coarse filter cover 29 in the inside of the mixing barrel 1, the filtered asphalt enters the inside of the coarse filter cover 29, then the motor 3 can drive the drive shaft 14 to rotate, the drive shaft 14 rotates in the inside of the coarse filter cover 29, the flame retardant asphalt is mixed and stirred by the stirring rod 24 to form the flame-retardant asphalt, then the helical blade 23 is used to deliver the flame-retardant asphalt to one end of the coarse filter cover 29, so that the flame-retardant asphalt enters the inside of the fine filter cover 33, and the flame-retardant asphalt can be discharged through the discharge pipe 5 after fine filtering by the fine filter cover 33.

[0043] As Figure 2 , Figure 3 , Figure 5 and Figure 8As shown, the cleaning and removing assembly comprises a plurality of annular rings 22, which are fixed on the outer surface of the driving shaft 14 at equal intervals and are located inside the fine filter screen cover 33. The inside of the driving shaft 14 is provided with a hollow cavity 20 at the middle. The outer surface of each annular ring 22 is fixed with a suction pipe 25. One end of each suction pipe 25 is connected to the inside of the hollow cavity 20. The inner wall of each suction pipe 25 is fixed with a sealing ring 47 near the top edge. The inner wall of each suction pipe 25 is fixed with a bottom ring 26 at the middle. The inside of each suction pipe 25 is provided with a sealing block 27. The top of each sealing block 27 is sealingly attached to the bottom of the sealing ring 47. The bottom of each sealing block 27 is fixed with a spring 28. The bottom of each spring 28 is fixed to the top of the bottom ring 26. The inside bottom surface of the fixed ring 13 is provided with an air channel 18, which penetrates to the outer surface of the mixing barrel 1 at one end. The outer surface of the mixing barrel 1 is fixed with a hose 11, which is in communication with the air channel 18. A plurality of side openings 21 are provided at equal intervals between the inner wall of the hollow cavity 20 near the side of the fixed ring 13. The plurality of side openings 21 penetrate to the outer surface of the driving shaft 14. The plurality of side openings 21 are located inside the fixed ring 13 and are in communication with the air channel 18 at one side of the air channel 18. The outer surface of the driving shaft 14 is rotatably provided with a limiting ring 19 near the other side of the fixed ring 13. The outer surface of the mixing barrel 1 is provided with a Z-shaped groove 9, which is provided with a lever 10 at the inside. One end of the lever 10 is fixed to the outer surface of the limiting ring 19.

[0044] The achieved effect is that since the fine filtering net cover 33 filters the flame-retardant asphalt through the inner surface, the fine particles generated during the filtering will adhere to the inner wall of the fine filtering net cover 33, and the fine filtering net cover 33 is fixedly installed between the supporting ring 12 and the fixing ring 13 inside the mixing cylinder 1, so it is difficult to disassemble and clean, at this time, the cleaning assembly arranged on the driving shaft 14 can clean the inner wall of the fine filtering net cover 33, during the cleaning, first, the discharge pipe 5 needs to be closed, at the same time, clean washing liquid is continuously injected into the inside of the mixing cylinder 1 from the feeding pipe 4, and the hose 11 is connected with the external negative pressure pipeline, then the lever 10 is slowly slid from one end to the other end of the Z-shaped groove 9, during the sliding, the driving shaft 14 is pried to the side of the motor 3 through the limiting ring 19, after the prying, one end of the driving shaft 14 is separated from the inside of the hexagonal groove 48, at this time, the mixing assembly cannot drive the feeding assembly to work when the mixing assembly works, at the same time, during the sliding, the plurality of side openings 21 can be in communication with the air passages 18, at this time, under the adsorption of the external negative pressure pipeline, the sealing block 27 can be adsorbed and slid downward, so that the opening of the suction pipe 25 is opened, and the plurality of suction pipes 25 generate the adsorption force, the generation of the adsorption force can adsorb the liquid in the fine filtering net cover 33 to the hollow cavity 20, during the adsorption and discharge, since the driving shaft 14 is slowly slid to the side of the motor 3 under the slow prying of the lever 10, the plurality of suction pipes 25 are also slowly slid to one side on the inside of the fine filtering net cover 33, during the sliding, the plurality of suction pipes 25 can slide along the inner wall of the fine filtering net cover 33 completely, so that the fine particles on the inner wall of the fine filtering net cover 33 are adsorbed and taken away together, the purpose of cleaning the inner wall of the fine filtering net cover 33 is achieved, and the liquid adsorbed into the hollow cavity 20 can flow into the inside of the hose 11 through the side opening 21 and the air passage 18 to achieve the purpose of discharge.

[0045] For example, in an embodiment, the present application also provides a production method of flame-retardant asphalt, which is applied to the production device of flame-retardant asphalt as above, and comprises the following steps:

[0046] Step S1: bitumen is supplied into the inside of the mixing cylinder 1 through the feeding pipe 4, then the flame retardant is intermittently supplied into the inside of the mixing cylinder in small doses through the feeding device, and the bitumen and the flame retardant are mixed with each other to form the flame-retardant asphalt by cooperating with the mixing assembly, during the supply of the bitumen, the bitumen is coarsely filtered and finely filtered to remove the granular impurities in the bitumen, and finally the fine particles on the inner wall of the fine filtering net cover 33 can be removed by the cleaning assembly, so as to ensure the permeability of the filter screen;

[0047] Step S2: when the feeding assembly is working, the driving disc 37 rotates one circle, the interface 39 coincides with the feeding port 38 once, and the flame retardant in the adapter pipe 7 can flow into the inside of the mixing cylinder 1 through the interface 39 during the coinciding period, so as to realize the purpose of intermittent feeding in small doses. When the driving disc 37 rotates, the driving ring 32 can be driven to rotate due to the meshing of the bridging gear 40 with the inner tooth ring 42 and the outer tooth ring 41, and the scraper 31 slides along the outer surface of the coarse filter cover 29 when the driving ring 32 rotates, so as to scrape off the larger impurities filtered on the outer surface of the coarse filter cover 29;

[0048] Step S3: when the mixing assembly is working, the asphalt enters the inside of the mixing cylinder 1 through the feeding pipe 4, and the asphalt is first filtered by the coarse filter cover 29, and then enters the inside of the coarse filter cover 29. The driving shaft 14 can be driven to rotate by the motor 3, and the flame retardant and the coarsely filtered asphalt are mixed and stirred in the inside of the coarse filter cover 29 by the stirring rod 24, so as to form the flame-retardant asphalt.

[0049] Step S4: when cleaning, the discharge pipe 5 needs to be closed first, and clean washing liquid is continuously injected into the inside of the mixing cylinder 1 from the feeding pipe 4, the hose 11 is connected with the external negative pressure pipeline, and then the lever 10 is slowly slid from one end to the other end of the Z-shaped groove 9. During the sliding process, the plurality of side openings 21 are in communication with the air duct 18, and at this time, the sealing block 27 can be adsorbed and slid downward under the adsorption of the external negative pressure pipeline, so as to open the opening of the suction pipe 25, and the plurality of suction pipes 25 generate adsorption force. The generation of the adsorption force can adsorb the liquid in the inside of the fine filter cover 33 to the hollow cavity 20, and during the adsorption and discharge process, the driving shaft 14 slides to the motor 3 side under the slow driving of the lever 10, so that the plurality of suction pipes 25 slowly slide to one side on the inside of the fine filter cover 33. During the sliding process, the plurality of suction pipes 25 slide along the inner wall of the fine filter cover 33, so as to adsorb and take away the fine particles on the inner wall of the fine filter cover 33, so as to achieve the purpose of cleaning the inner wall of the fine filter cover 33.

[0050] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A production apparatus for flame-retardant mastic, characterized in that, Including mixing barrel (1), one side of the mixing barrel (1) is provided with end cover (2), one side of the end cover (2) is provided with transmission groove (35), the inside of the transmission groove (35) is provided with feeding assembly, the inner wall of the mixing barrel (1) is provided with support ring (12) near one side of the end cover (2), the other end of the mixing barrel (1) is provided with motor (3), the inner wall of the mixing barrel (1) is provided with fixed ring (13) near the other end, the output end of the motor (3) is provided with mixing assembly; The top of the mixing barrel (1) is communicated with feeding pipe (4) between end cover (2) and support ring (12), the bottom of the mixing barrel (1) is communicated with discharge pipe (5) between support ring (12) and fixed ring (13), the inside bottom surface of the mixing barrel (1) is provided with deposition groove (6) on one side of the end cover (2), the inside bottom surface of the deposition groove (6) is slidably connected with pull cover plate (8) near the bottom edge, the inside of the transmission groove (35) is fixed with three vertical columns (36) equidistantly along the circumferential direction, the top of the three vertical columns (36) is fixed with annular support plate (43), the top of the annular support plate (43) is provided with annular limiting groove (46), the inside of the mixing barrel (1) is provided with coarse filter screen cover (29) on one side of the support ring (12), one end of the coarse filter screen cover (29) is clamped in the inside of the annular limiting groove (46), the other end of the coarse filter screen cover (29) is bent, and extends to the inner wall between the support ring (12), the outer surface of the coarse filter screen cover (29) is fixed with rubber ring (30) near the other end edge, the inner wall between the support ring (12) is provided with sealing ring (34), the rubber ring (30) and the sealing ring (34) are sealingly attached, the opposite side between the support ring (12) and the fixed ring (13) is provided with fine filter screen cover (33), the inner wall of the fine filter screen cover (33) is flush with the inner wall of the support ring (12), the fine filter screen cover (33) and the closed end of the coarse filter screen cover (29) are communicated with each other through the inner side of the support ring (12). The feeding assembly includes a driving disc (37), the inner bottom surface of the transmission groove (35) is provided with a clamping groove (45) in the middle, the driving disc (37) is located in the inside of the transmission groove (35), and the bottom middle of the driving disc (37) is rotationally clamped in the inside of the clamping groove (45); the bottom of the driving disc (37) is in close contact with the inner bottom surface of the transmission groove (35); one side of the end cover (2) is provided with a feeding port (38) penetrating into the inside of the transmission groove (35); the bottom of the driving disc (37) is provided with a butt joint port (39) penetrating to the top; the butt joint port (39) is in communication with the feeding port (38); one side of the end cover (2) is fixedly provided with a butt joint pipe (7); the feeding port (38) is in communication with the butt joint pipe (7); the outer surface of the driving disc (37) is in sealing sliding contact with the inner side of the annular supporting plate (43); the top of the driving disc (37) is provided with a hexagonal groove (48); the mixing assembly includes a driving shaft (14), the driving shaft (14) is located in the inside of the mixing cylinder (1), one end of the driving shaft (14) is clamped in the inside of the hexagonal groove (48), and the other end of the driving shaft (14) is provided with a cylindrical cavity (16); the inner wall of the cylindrical cavity (16) is fixedly provided with an inner hexagonal collar (17) in the middle; and the inner wall of the inner hexagonal collar (17) is slidably provided with a hexagonal column (15).

2. A device for producing flame-retardant melamine according to claim 1, characterized in that: The outer surface of the driving disc (37) is fixedly provided with an outer gear ring (41) near the bottom edge; the inner bottom surface of the transmission groove (35) is provided with an outer annular clamping groove (44) near the edge; the inner wall of the transmission groove (35) is rotationally provided with a driving ring (32); the bottom of the driving ring (32) is slidably clamped in the inside of the outer annular clamping groove (44); the top of the driving ring (32) extends to the outside of the coarse filter cover (29); the outer surface of the driving ring (32) is in sealing sliding contact with the inner wall of the transmission groove (35); the inner wall of the driving ring (32) is in sealing sliding contact with the outer surface of the annular supporting plate (43); the inner wall of the driving ring (32) is fixedly provided with an inner gear ring (42) near the bottom edge; the inner bottom surface of the transmission groove (35) and the bottom of the annular supporting plate (43) are rotationally provided with a bridging gear (40); the bridging gear (40) is in meshing connection with the inner gear ring (42) and the outer gear ring (41); and the top of the driving ring (32) is fixedly provided with three scrapers (31); the outer surface of one side of each of the three scrapers (31) is in close contact with the outer surface of the coarse filter cover (29).

3. A device for producing flame-retardant melamine according to claim 2, characterized in that: The driving shaft (14) is provided with a cleaning assembly; the outer surface of the driving shaft (14) is in sliding contact with the outer surface of the bending portion of the other end of the coarse filter cover (29); the outer surface of the driving shaft (14) is located in the inside of the supporting ring (12); the outer surface of the driving shaft (14) is in sealing sliding contact with the inner wall of the fixing ring (13); and one end of the hexagonal column (15) is fixed to the output end of the motor (3).

4. A device for producing flame-retardant melamine according to claim 3, characterized in that: The outer surface of the drive shaft (14) is fixed with a plurality of stirring rods (24) equidistantly in the circumferential direction near one end edge, and the plurality of stirring rods (24) are correspondingly located on one side of the end cover (2). The outer surface of the drive shaft (14) is fixed with a spiral blade (23) located on one side of the stirring rod (24). The spiral blade (23) and the plurality of stirring rods (24) are located inside the coarse filter screen cover (29).

5. A device for producing flame-retardant melamine according to claim 4, characterized in that: The cleaning assembly comprises a plurality of annular rings (22) fixed equidistantly on the outer surface of the drive shaft (14) and located inside the fine filter screen cover (33). A hollow cavity (20) is formed in the middle of the drive shaft (14). The outer surface of each of the plurality of annular rings (22) is fixed with a material suction pipe (25). One end of each of the plurality of material suction pipes (25) is correspondingly communicated to the inside of the hollow cavity (20). A sealing ring (47) is fixed between the inner walls of the plurality of material suction pipes (25) near the top edge. A bottom ring (26) is fixed between the inner walls of the plurality of material suction pipes (25) in the middle. A sealing block (27) is arranged inside the plurality of material suction pipes (25). The top of each of the plurality of sealing blocks (27) is sealingly attached to the bottom of the sealing ring (47). The bottom of each of the plurality of sealing blocks (27) is fixed with a spring (28), and the bottom of each of the plurality of springs (28) is correspondingly fixed to the top of the bottom ring (26).

6. A device for producing flame-retardant melamine according to claim 5, characterized in that: The inner bottom surface of the fixed ring (13) is provided with an air channel (18) penetrating through the outer surface of the mixing barrel (1). The outer surface of the mixing barrel (1) is fixed with a hose (11) in communication with the air channel (18). A plurality of side openings (21) are equidistantly formed between the inner walls of the hollow cavity (20) near one side of the fixed ring (13). The plurality of side openings (21) penetrate through the outer surface of the drive shaft (14) and are located inside the fixed ring (13) and in communication with the air channel (18) on one side of the air channel (18). A limiting ring (19) is rotatably arranged on the outer surface of the drive shaft (14) near the other side of the fixed ring (13). The outer surface of the mixing barrel (1) is provided with a Z-shaped groove (9) in which a lever (10) is arranged. One end of the lever (10) is fixed to the outer surface of the limiting ring (19).

7. A method for producing a flame-retardant melamine resin, which is applied to the production apparatus for a flame-retardant melamine resin as claimed in claim 6, characterized by, The method comprises the following steps: In step S1, bitumen is supplied into the mixing barrel (1) through the feeding pipe (4), and then a small amount of flame retardant is intermittently supplied into the mixing barrel (1) through the feeding device, and the bitumen and the flame retardant are mixed by the mixing assembly to form flame-retardant bitumen. During the supply of the bitumen, coarse filtration and fine filtration are performed on the bitumen to remove the particulate impurities in the bitumen. Finally, the fine particles on the inner wall of the fine filter screen cover (33) are removed by the cleaning assembly to ensure the permeability of the filter screen. Step S2: when the feeding assembly is working, the drive plate (37) rotates every circle, the interface (39) coincides with the inlet (38) once, the flame retardant in the adapter pipe (7) can flow into the inside of the mixing cylinder (1) through the interface (39) in the coinciding period, so as to realize the purpose of intermittent feeding of small dose, and when the drive plate (37) rotates, the bridge gear (40) is engaged with the inner gear ring (42) and the outer gear ring (41) respectively, so as to drive the drive ring (32) to rotate, and the scraper (31) slides along the outer surface of the coarse filter cover (29) when the drive ring (32) rotates, so as to scrape off the larger impurities on the outer surface of the coarse filter cover (29); Step S3: when the mixing assembly is working, the asphalt enters the inside of the mixing cylinder (1) through the inlet pipe (4), the asphalt is first filtered by the coarse filter cover (29) in the inside of the mixing cylinder (1), then the filtered asphalt enters the inside of the coarse filter cover (29), and the drive shaft (14) can be driven to rotate by the motor (3), the flame retardant and the coarsely filtered asphalt are mixed and stirred in the inside of the coarse filter cover (29) by the stirring rod (24), so as to form the flame-retardant asphalt; Step S4: when cleaning, the outlet pipe (5) needs to be closed first, at the same time, the clean cleaning liquid is continuously injected into the inside of the mixing cylinder (1) from the inlet pipe (4), the hose (11) is connected with the external negative pressure pipeline, then the lever (10) is slowly slid from one end to the other end of the Z-shaped groove (9), the plurality of side openings (21) are communicated with the air duct (18) in the sliding process, at this time, the sealing block (27) can be adsorbed and slid downward under the adsorption of the external negative pressure pipeline, so as to open the opening of the suction pipe (25), so that the plurality of suction pipes (25) generate adsorption force, the adsorption force can adsorb the liquid in the precision filter cover (33) to the hollow cavity (20), and in the process of adsorption and discharge, the drive shaft (14) slides to the motor (3) side under the slow driving of the lever (10), so that the plurality of suction pipes (25) slowly slide to one side in the inside of the precision filter cover (33), and in the sliding process, the plurality of suction pipes (25) slide along the inner wall of the precision filter cover (33) completely, so as to adsorb the fine particles on the inner wall of the precision filter cover (33) together, so as to achieve the purpose of cleaning the inner wall of the precision filter cover (33).

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