A normal-temperature modified asphalt-based split-pipe mixing device and a rapid mixing method

Abstract

The application discloses a kind of based on normal temperature modified asphalt's branch pipe type mixing device and fast mixing method, including shell, the shell is equipped with branch pipe in upper end, the branch pipe upper end is equipped with feeding part, the shell bottom side one end is fixedly connected with motor, the motor is connected with first belt pulley assembly, the first belt pulley assembly is connected with fan blade, the first belt pulley assembly is connected with bevel gear assembly, the bevel gear assembly is connected with second belt pulley assembly, the application relates to bitumen production technical field.This one based on normal temperature modified asphalt's branch pipe type mixing device and fast mixing method, after feeding, close feeding pipe, in the process that modified emulsified asphalt and small granular mineral aggregate enter feeding part, start air pump, air pump draws into external gas, and then gas is injected into jet plate through second three-way valve and pipe, after gas is injected into feeding hopper by jet plate, gas exerts gas pressure or blows on modified emulsified asphalt or small granular mineral aggregate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt production, in particular to a split-pipe type mixing device for normal-temperature modified asphalt and a rapid mixing method. BACKGROUND

[0002] During the production of normal-temperature modified asphalt mixture, a corresponding split-pipe type mixing device is needed to mix emulsified asphalt and small-particle mineral aggregate. In the existing split-pipe type mixing device for normal-temperature modified asphalt, the discharging speed of emulsified asphalt and small-particle mineral aggregate in the pipe is slow, and the emulsified asphalt and small-particle mineral aggregate are prone to adhere to the pipe, which may cause pipe blockage and material waste. In addition, after the mixing of the device is completed, the discharging efficiency of the viscous asphalt mixture is poor, and the mixed material adhering to the inner wall of the stirring end and the containing side of the device is not easy to fall off, which leads to a large amount of mixed material waste and increases the subsequent cleaning steps, thereby affecting the mixing efficiency. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a split-pipe type mixing device for normal-temperature modified asphalt and a rapid mixing method, which solves the problem of slow discharging speed of emulsified asphalt and small-particle mineral aggregate in the pipe during the feeding of the device.

[0004] To achieve the above purpose, the present application realizes the following technical scheme: a split-pipe type mixing device for normal-temperature modified asphalt, comprising a shell, a split pipe is arranged at the upper end in the shell, an upper feeding member is arranged at the upper end of the split pipe, a motor is fixedly connected to one end of the bottom side of the shell, a first pulley assembly is connected to the motor, a fan blade is connected to the upper end in the first pulley assembly, a bevel gear assembly is connected to the lower side of the first pulley assembly, a second pulley assembly is connected to the driven bevel gear in the bevel gear assembly, stirring members are connected to the second driving pulley and the second driven pulley in the second pulley assembly, a mixing shell is arranged at the upper side outer end of the stirring member in the shell, a first air cylinder is arranged at the upper side of the mixing shell, an extrusion member is connected to the inner end of the mixing shell close to the first air cylinder, a second air cylinder is arranged at one end of the lower side of the mixing shell, a partition plate is fixedly connected to the elongated end of the second air cylinder and is in sliding connection with the mixing shell, a discharge pipe is fixedly connected to the mixing shell and is in sliding connection with the partition plate, an air pump is arranged at the lower middle end in the shell, a second three-way valve is arranged at the exhaust end of the air pump, a cabinet door is arranged at the front face of the shell close to the mixing shell end, the upper feeding member is composed of an upper feeding hopper, a rotating plate, a jet plate and a guide pipe, the upper feeding hopper is fixedly connected and communicated with the top of the split pipe, the guide pipe is fixedly connected with the side end of the second three-way valve, the upper feeding hopper is rotatably connected with the rotating plate, the lower end of the rotating plate is fixedly connected with the jet plate, and the guide pipe is fixedly connected and communicated with the jet plate.

[0005] Preferably, the upper hopper is provided with a latch near the non-rotating end of the rotating plate, the latch is engaged with the rotating plate, a handle is provided on the upper side of the rotating plate away from the rotating end, and a loading pipe is provided on one side of the upper hopper.

[0006] Preferably, the extrusion member is composed of a pressing plate, a first three-way valve, an air jet ring, and a telescopic member. The pressing plate is slidably connected to the inner end of the mixing shell and fixedly connected to the extended end of the cylinder in the first cylinder. The upper end of the first three-way valve is provided with a ventilation pipe fixedly connected to the upper end of the second three-way valve. The pressing plate is respectively fixedly connected to the first three-way valve and the air jet ring and connected to the telescopic member. The lower end of the first three-way valve is fixedly connected to and communicated with the air jet ring.

[0007] Preferably, the telescopic part is composed of a casing, a sliding rod, and a second spring. The pressure plate is slidably connected to the casing and fixedly connected to the sliding rod. The inner end of the casing is fixedly connected to the second spring and slidably connected to the sliding rod. The second spring is fixedly connected to the sliding rod.

[0008] Preferably, the stirring member is composed of a rotating rod, a first spring, and a locking member. The first spring is rotatably connected to the shell and the mixing shell respectively. The second driving pulley and the second driven pulley in the second pulley assembly are coaxially fixedly connected to the two rotating rods respectively. The inner end of the rotating rod is fixedly connected to the first spring, and the inner upper end of the rotating rod is connected to the locking member. The upper and lower ends of the locking member are respectively connected to the mixing shell and the first spring.

[0009] Preferably, the locking piece is composed of a micro-cylinder assembly, a locking block, a stirring rod assembly, and a fixed tooth. The upper end of the rotating rod is connected to the micro-cylinder assembly, the extended end of the micro-cylinder assembly is fixedly connected to the locking block, the stirring rod assembly is respectively connected to the mixing shell and the fixed tooth, and the fixed tooth is engaged with the locking block.

[0010] Preferably, the stirring rod assembly is composed of a rotating column, a limiting column, a slider, a stirring rod, and a protective film. The rotating column is slidingly connected to the micro-cylinder assembly and fixedly connected to the fixed tooth. The inner end of the rotating column is fixedly connected to the limiting column and slidingly connected to the slider. The slider is slidingly connected to the limiting column and fixedly connected to the stirring rod. The rotating column and the slider are both fixedly connected to the protective film.

[0011] Preferably, the micro-cylinder assembly is provided with a sealing gasket near the end of the rotating column, the surface of the limiting column is provided with a reset spring respectively fixedly connected to the rotating column and the slider, the inner end of the fixed tooth is provided with an inner tooth, and the bottom of the rotating column is provided with an outer tooth that fits with the inner tooth. The protective film is made of PVC material, so the rotating column is provided with a groove near the end of the protective film that is slidably connected to the stirring rod and the protective film respectively.

[0012] The application further discloses a rapid mixing method of the split-pipe type mixing device based on normal-temperature modified asphalt, and specifically comprises the following steps: a user guides normal-temperature emulsified asphalt and small-particle mineral materials into an upper feeding hopper through an upper feeding pipe in sequence, and then the emulsified asphalt and small-particle mineral materials enter an upper feeding element through a split pipe; after the feeding, the upper feeding pipe is closed; during the process that the modified emulsified asphalt and small-particle mineral materials enter the upper feeding element, a gas pump is started to suck external gas, and then the gas is injected into a gas injection plate through a second three-way valve and a pipe; after the gas injection plate sprays the gas into the upper feeding hopper, the gas exerts air pressure or blows on the modified emulsified asphalt or small-particle mineral materials, promotes the modified emulsified asphalt or small-particle mineral materials to quickly fall into a mixing shell, and reduces the adhesion of the modified emulsified asphalt or small-particle mineral materials to the split pipe and the upper feeding element;

[0013] Step two: after the emulsified asphalt and small-particle mineral materials are completely fed, the gas pump is closed and a motor is started to drive the first belt pulley assembly to operate; the first driven belt pulley in the first belt pulley assembly drives the fan blades to rotate, the rotating fan blades promote the gas outside the shell to enter the shell and finally to be discharged, thereby achieving ventilation, keeping the temperature inside and outside the mixing device similar, and driving the second belt pulley assembly to operate through the bevel gear assembly; the second driving belt pulley and the second driven belt pulley in the second belt pulley assembly respectively drive the two rotating rods to rotate, the rotating rods drive the locking element to rotate, the locking element drives the stirring rod assembly at the inner end to rotate, the rotating column at the inner end of the stirring rod assembly drives the limiting column, the sliding block and the stirring rod to rotate, the rotating stirring rod stirs the emulsified asphalt and small-particle mineral materials, and the mixture of the emulsified asphalt and small-particle mineral materials is obtained;

[0014] Step 3: After the mixing is completed, turn off the motor and start the air pump and reverse the second three-way valve. At this time, the gas pumped by the air pump is injected into the pressure plate through the second three-way valve, the vent pipe and the first three-way valve. The gas injected into the pressure plate pushes the two casings to move in the same direction. The excess gas is ejected from the gap between the casing and the pressure plate. Start the second cylinder. The second cylinder drives the partition to rise until the discharge pipe and the mixing shell are fully connected. Then, turn off the second cylinder and start the micro-cylinder assembly. The micro-cylinder assembly drives the locking block to separate from the fixed tooth. Start the first cylinder. The first cylinder drives the extrusion piece to move downward. During the downward movement of the extrusion piece, the pressure plate and the casing provide downward force for the stirring rod and the rotating column respectively. Under the action of the force, The rotating column and the stirring rod near the pressure plate end move downward, and finally most of the rotating column is immersed in the rotating rod, and the stirring rod converges at the lower end near the mixing shell side. Under the push of the rotating column, the first spring contracts. During the downward movement of the extruding part, the pressure plate and the casing squeeze the asphalt mixture in the mixing shell. Under the action of pressure, the asphalt mixture in the mixing shell is squeezed out through the discharge pipe, which speeds up the user to obtain most of the asphalt mixture, and then the first three-way valve is reversed. At this time, the gas is ejected through the jet ring, and the gas ejected by the jet ring blows the stirring rod and a small part of the rotating column to promote the mixture attached to the surface of the stirring rod and the rotating column to fall to the bottom of the mixing shell, thereby reducing the subsequent cleaning steps.

[0015] Preferably, in step three, when the stirring rods shrink, the protective films between the stirring rods and between the stirring rods and the rotating column shrink, and the protective films block the asphalt mixture to prevent it from entering the rotating column.

[0016] Beneficial effects

[0017] The present invention provides a pipe-type mixing device and a rapid mixing method based on room-temperature modified asphalt. Compared with the existing technology, it has the following advantages:

[0018] (1) The split-pipe mixing device based on normal temperature modified asphalt is provided with a feeding piece in the device. After the feeding piece is fed, the feeding pipe is closed. When the modified emulsified asphalt and small-particle mineral material enter the feeding piece, the air pump is started to draw in external gas. The gas is then injected into the jet plate through the second three-way valve and the conduit. After the gas ejected from the jet plate is injected into the feeding hopper, the gas applies air pressure or blows on the modified emulsified asphalt or small-particle mineral material, thereby promoting the modified emulsified asphalt or small-particle mineral material to quickly fall into the mixing shell and reducing the modified emulsified asphalt or small-particle mineral material from adhering to the split-pipe and the feeding piece.

[0019] (2), the device, by setting the extrusion part in the device, after mixing, close the motor and start the air pump and make the second three-way valve reversing, at this time the air pump is extracted gas through the second three-way valve, vent pipe, the first three-way valve into the pressure plate, the gas injected into the pressure plate pushes two machine shell same direction movement, the excess gas from the machine shell and pressure plate gap spout;Stirring part shrinkage after the first three-way valve reversing, at this time the gas through the air jet ring spout, air jet ring spout gas on the stirring rod and a small part of the rotating column blowing promote the stirring rod and rotating column surface attached to the mixed material fall to the mixing shell bottom, reduce the subsequent cleaning step.

[0020] (3), the device, by setting the locking part in the device, rotating column rotation by driving the locking part rotation, the rotating locking part end stirring rod assembly rotation, the rotating rod in the stirring rod assembly end limit column, slide block, stirring rod rotation, rotating stirring rod emulsified asphalt and small particle mineral aggregate mixing, get emulsified asphalt and small particle mineral aggregate mixture, after mixing, start the micro cylinder assembly, micro cylinder assembly driven locking block and fixed tooth separation, facilitate subsequent stirring rod assembly shrinkage.

[0021] (4), the device, by setting the stirring rod assembly in the device, start the first cylinder, the first cylinder driving extrusion part downward movement, extrusion part downward movement process, the pressure plate and machine shell respectively provide downward force for stirring rod and rotating column, the pressure plate scraping inside the mixing shell, promote the inside wall of the mixing shell attached asphalt mixture fall, under the action of force, rotating column and close to the pressure plate end of the stirring rod downward movement downward, eventually rotating column mostly immersed in the rotating rod, the stirring rod gather close to the mixing shell side lower end, under the push of rotating column first spring shrinkage, in the process of extrusion part downward movement, the pressure plate and machine shell to the asphalt mixture in the mixing shell extrusion, under the action of pressure, asphalt mixture in the mixing shell through the discharge pipe extrusion, accelerate the user to get most of the asphalt mixture. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the structure of the present invention sectional view;

[0023] Figure 2 is the present invention Figure 1 A local enlarged view of the place in the invention;

[0024] Figure 3 is the front view of the present invention;

[0025] Figure 4 is the present invention inner feeding part structure enlargement;

[0026] Figure 5 is the present invention inner extrusion part sectional view;

[0027] Figure 6 It is an enlarged view of the inner telescopic member of the present invention;

[0028] Figure 7 This is a partial enlarged view of the internal stirring member of the present invention;

[0029] Figure 8 is an enlarged view of the inner locking member of the present invention;

[0030] Figure 9 is a cross-sectional view of the inner stirring rod assembly of the present invention;

[0031] Figure 10 For the present invention Figure 9 A partial enlarged view of point B in the middle.

[0032] In the figure: 1. Housing; 2. Feeding pipe; 3. Feeding member; 31. Feeding hopper; 32. Rotating plate; 33. Jet plate; 34. Conduit; 4. Motor; 5. First pulley assembly; 6. Fan blade; 7. Bevel gear assembly; 8. Second pulley assembly; 9. Stirring member; 91. Rotating rod; 92. First spring; 93. Locking member; 931. Micro cylinder assembly; 932. Locking block; 933. Stirring rod assembly; 9331. Rotating column; 9332. Limiting column ;9333, slider; 9334, stirring rod; 9335, protective film; 934, fixed tooth; 10, first cylinder; 11, extrusion part; 111, pressure plate; 112, first three-way valve; 113, jet ring; 114, telescopic part; 1141, casing; 1142, sliding rod; 1143, second spring; 12, second cylinder; 13, partition; 14, discharge pipe; 15, air pump; 16, second three-way valve; 17, cabinet door; 18, mixing shell. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figures 1-4The first embodiment shown is a pipe-type mixing device based on normal temperature modified asphalt, comprising a shell 1, a feeding pipe 2 is provided at the upper end of the shell 1, a feeding piece 3 is provided at the upper end of the feeding pipe 2, a motor 4 is fixedly connected to one end of the bottom side of the shell 1, a first pulley assembly 5 is connected to the inner end of the motor 4 near the shell 1, a fan blade 6 is connected to the upper end of the first pulley assembly 5, an air intake groove with an embedded air intake filter is provided at the end of the shell 1 near the fan blade 6, an exhaust groove with an embedded exhaust filter is provided at the end of the shell 1 away from the fan blade 6, a bevel gear assembly 7 is connected to the lower end of the first pulley assembly 5 away from the motor 4, a second pulley assembly 8 is connected to the driven bevel gear in the bevel gear assembly 7, a second driving pulley and a second driven pulley in the second pulley assembly 8 are both connected to a stirring member 9, a mixing shell 18 is provided in the shell 1 near the upper outer end of the stirring member 9, a first cylinder 10 is provided on the upper side of the mixing shell 18, and an extrusion member 11 is connected to the first cylinder 10 near the inner end of the mixing shell 18;

[0035] A second cylinder 12 is provided at one end of the lower side of the mixing shell 18, and a partition 13 is fixedly connected to the extended end of the second cylinder 12 to be slidably connected to the mixing shell 18. The mixing shell 18 is fixedly connected to a discharge pipe 14 to be slidably connected to the partition 13. An air pump 15 is provided at the lower middle end of the shell 1, and a second three-way valve 16 is provided at the exhaust end of the air pump 15. A cabinet door 17 is provided at the front end of the shell 1 near the mixing shell 18. The feeding part 3 is composed of an upper hopper 31, a rotating plate 32, an air jet plate 33, and a conduit 34. The upper hopper 31 is fixedly connected and communicated with the top of the distribution pipe 2, the conduit 34 is fixedly connected to the side end of the second three-way valve 16, the upper hopper 31 is rotatably connected to the rotating plate 32, the lower end of the rotating plate 32 is fixedly connected to the air jet plate 33, and the conduit 34 is fixed to the air jet plate 33 The feed hopper 31 is connected and communicated, and a latch is provided near the non-rotating end of the rotating plate 32, and the latch is engaged with the rotating plate 32. A handle is provided on the upper side of the rotating plate 32 away from the rotating end, and a feeding pipe is provided on one side of the feed hopper 31; after loading, the feeding pipe is closed, and when the modified emulsified asphalt and small-particle mineral materials enter the feeding part 3, the air pump 15 is started, and the air pump 15 draws in external air, and then the air is injected into the jet plate 33 through the second three-way valve 16 and the conduit 34. After the gas ejected by the jet plate 33 is injected into the feed hopper 31, the gas applies air pressure or blows on the modified emulsified asphalt or small-particle mineral materials, thereby promoting the modified emulsified asphalt or small-particle mineral materials to quickly fall into the mixing shell 18, and reducing the modified emulsified asphalt or small-particle mineral materials from adhering to the distribution pipe 2 and the feeding part 3;

[0036] like Figures 1-6 The second embodiment shown is mainly different from the first embodiment in that:

[0037] The extrusion member 11 is composed of a pressing plate 111, a first three-way valve 112, an air jet ring 113, and a telescopic member 114. The pressing plate 111 is slidably connected to the inner end of the mixing shell 18 and is fixedly connected to the extended end of the cylinder in the first cylinder 10. The upper end of the first three-way valve 112 is provided with a ventilation pipe fixedly connected to the upper end of the second three-way valve 16. A sealing block is provided on the edge of the pressing plate 111. The pressing plate 111 is fixedly connected to the first three-way valve 112 and the air jet ring 113 respectively and is connected to the telescopic member 114. The lower end of the first three-way valve 112 is fixedly connected and communicated with the air jet ring 113; the telescopic member 114 is composed of a casing 1141, a sliding rod 1142, and a second spring 1143. The pressing plate 111 is slidably connected to the casing 1141 and fixedly connected to the sliding rod 1142. The inner end of the casing 1141 is fixedly connected to the second spring 1143 and slidably connected to the sliding rod 1142, and the second spring 1143 is fixedly connected to the sliding rod 1142;

[0038] After the mixing is completed, the motor 4 is turned off, the air pump 15 is turned on, and the second three-way valve 16 is reversed. At this time, the gas pumped by the air pump 15 is injected into the pressure plate 111 through the second three-way valve 16, the vent pipe, and the first three-way valve 112. The gas injected into the pressure plate 111 pushes the two housings 1141 to move in the same direction, and the excess gas is ejected from the gap between the housing 1141 and the pressure plate 111; after the stirring member 9 contracts, the first three-way valve 112 is reversed. At this time, the gas is ejected through the jet ring 113, and the gas ejected by the jet ring 113 blows the stirring rod 9334 and a small part of the rotating column 9331 to promote the mixed material attached to the surface of the stirring rod 9334 and the rotating column 9331 to fall to the bottom of the mixing shell 18, thereby reducing the subsequent cleaning steps, and connecting the discharge pipe 14 with the pumping machine so that the pumping machine extracts the remaining mixed material through the discharge pipe 14;

[0039] like Figures 1-8 The third embodiment shown is mainly different from the second embodiment in that:

[0040] The stirring member 9 is composed of a rotating rod 91, a first spring 92, and a locking member 93. The first spring 92 is rotatably connected to the housing 1 and the mixing shell 18 respectively. The second driving pulley and the second driven pulley in the second pulley assembly 8 are coaxially fixedly connected to the two rotating rods 91 respectively. The inner end of the rotating rod 91 is fixedly connected to the first spring 92. The inner upper end of the rotating rod 91 is connected to the locking member 93. The upper and lower ends of the locking member 93 are respectively connected to the mixing shell 18 and the first spring 92. The locking member 93 is composed of a micro-cylinder assembly 931, a locking block 932, a stirring rod assembly 933, and a fixed tooth 934. The upper end of the rotating rod 91 is connected to the micro-cylinder assembly 931;

[0041] The extended end of the micro-cylinder assembly 931 is fixedly connected to the locking block 932, and the stirring rod assembly 933 is respectively connected to the mixing shell 18 and the fixed tooth 934, and the fixed tooth 934 is engaged with the locking block 932; when the rotating rod 91 rotates, it drives the locking piece 93 to rotate, and the stirring rod assembly 933 at the inner end of the rotating locking piece 93 rotates, and the rotating column 9331 at the inner end of the stirring rod assembly 933 drives the limiting column 9332, the slider 9333, and the stirring rod 9334 to rotate, and the rotating stirring rod 9334 stirs the emulsified asphalt and the small particle mineral material to obtain a mixture of the emulsified asphalt and the small particle mineral material. After the stirring is completed, the micro-cylinder assembly 931 is started, and the micro-cylinder assembly 931 drives the locking block 932 to separate from the fixed tooth 934, so as to facilitate the subsequent contraction of the stirring rod assembly 933;

[0042] like Figures 1-10 The third embodiment shown is mainly different from the second embodiment in that:

[0043] The stirring rod assembly 933 is composed of a rotating column 9331, a limiting column 9332, a slider 9333, a stirring rod 9334, and a protective film 9335. The rotating column 9331 is slidably connected to the micro-cylinder assembly 931 and is fixedly connected to the fixed tooth 934. The inner end of the rotating column 9331 is fixedly connected to the limiting column 9332 and is slidably connected to the slider 9333. The slider 9333 is slidably connected to the limiting column 9332 and is fixedly connected to the stirring rod 9334. The rotating column 9331 and the slider 9333 are both fixedly connected to the protective film 9335. A sealing gasket is provided near the end of the rotating column 9331 of the micro-cylinder assembly 931. The surface of the limiting column 9332 is provided with a return spring fixedly connected to the rotating column 9331 and the slider 9333 respectively.

[0044] The inner end of the fixed tooth 934 is provided with an inner tooth, and the bottom of the rotating column 9331 is provided with an outer tooth matched with the inner tooth. The protective film 9335 is made of PVC material, so the rotating column 9331 close to the protective film 9335 end is provided with a groove respectively slidingly connected with the stirring rod 9334 and the protective film 9335; the first air cylinder 10 is started, the first air cylinder 10 drives the extrusion piece 11 to move downward, in the downward movement process of the extrusion piece 11, the pressing plate 111 and the machine shell 1141 provide downward force for the stirring rod 9334 and the rotating column 9331 respectively, the pressing plate 111 scrapes the inner wall of the mixing shell 18, promotes the asphalt mixture attached to the inner wall of the mixing shell 18 to fall off, under the action of force, the rotating column 9331 and the stirring rod 9334 close to the pressing plate 111 end move downward, and finally the rotating column 9331 mostly immerses in the rotating rod 91, the stirring rod 9334 converges close to the lower end of the mixing shell 18 side, the first spring 92 is contracted under the pushing of the rotating column 9331, in the downward movement process of the extrusion piece 11, the pressing plate 111 and the machine shell 1141 extrude the asphalt mixture in the mixing shell 18, under the action of pressure, the asphalt mixture in the mixing shell 18 is extruded through the discharge pipe 14, and the user obtains most of the asphalt mixture.

[0045] The application further discloses a divided-pipe type mixing device based on normal-temperature modified asphalt and a rapid mixing method.

[0046] Step one: the user guides normal-temperature emulsified asphalt and small-particle mineral aggregate into the feeding hopper 31 through the feeding pipe in sequence, and then the emulsified asphalt and small-particle mineral aggregate enter the feeding piece 3 through the distribution pipe 2; after feeding, the feeding pipe is closed, and in the process that the modified emulsified asphalt and small-particle mineral aggregate enter the feeding piece 3, the air pump 15 is started, the air pump 15 draws external air, and then the air is injected into the air injection plate 33 through the second three-way valve 16 and the pipe 34; after the air injection plate 33 sprays air into the feeding hopper 31, the air exerts air pressure or blows on the modified emulsified asphalt or small-particle mineral aggregate, so that the modified emulsified asphalt or small-particle mineral aggregate falls into the mixing shell 18 quickly and the adhesion of the modified emulsified asphalt or small-particle mineral aggregate to the distribution pipe 2 and the feeding piece 3 is reduced;

[0047] Step 2: After the emulsified asphalt and small-particle mineral materials are loaded, the air pump 15 is turned off and the motor 4 is started. The motor 4 drives the first pulley assembly 5 to operate. The first driven pulley in the first pulley assembly 5 drives the fan blade 6 to rotate. The rotating fan blade 6 promotes the gas at the outer end of the shell 1 to enter the shell 1 and finally discharge it to achieve ventilation and keep the temperature inside and outside the mixing device similar. The first driving pulley in the first pulley assembly 5 drives the second pulley assembly 8 to operate through the bevel gear assembly 7. The second driving pulley and the second driven pulley at the inner end of the second pulley assembly 8 respectively drive the two rotating rods 91 to rotate. The rotating rotating rod 91 drives the locking piece 93 to rotate, and the stirring rod assembly 933 at the inner end of the rotating locking piece 93 rotates. The rotating column 9331 at the inner end of the stirring rod assembly 933 drives the limiting column 9332, the slider 9333, and the stirring rod 9334 to rotate. The rotating stirring rod 9334 stirs the emulsified asphalt and small-particle mineral materials to obtain a mixture of emulsified asphalt and small-particle mineral materials.

[0048] Step 3: After the mixing is completed, the motor 4 is turned off, the air pump 15 is turned on, and the second three-way valve 16 is reversed. At this time, the gas pumped by the air pump 15 is injected into the pressure plate 111 through the second three-way valve 16, the vent pipe, and the first three-way valve 112. The gas injected into the pressure plate 111 pushes the two housings 1141 to move in the same direction, and the excess gas is ejected from the gap between the housing 1141 and the pressure plate 111, and the second cylinder 12 is started. The second cylinder 12 drives the partition 13 to rise until the discharge pipe 14 is fully connected with the mixing shell 18, and then the second cylinder 12 is closed. The micro cylinder assembly 931 is started, and the micro cylinder assembly 931 drives the locking block 932 to separate from the fixed tooth 934. The first cylinder 10 is started, and the first cylinder 10 drives the extrusion piece 11 to move downward. During the downward movement of the extrusion piece 11, the pressure plate 111 and the housing 1141 provide downward force for the stirring rod 9334 and the rotating column 9331 respectively. Under the use, the rotating column 9331 and the stirring rod 9334 near the end of the pressure plate 111 move downward, and finally most of the rotating column 9331 is immersed in the rotating rod 91, and the stirring rod 9334 converges at the lower end near the mixing shell 18. Under the push of the rotating column 9331, the first spring 92 contracts. During the downward movement of the extruding member 11, the pressure plate 111 and the casing 1141 squeeze the asphalt mixture in the mixing shell 18. Under the action of pressure, the asphalt mixture in the mixing shell 18 is squeezed out through the discharge pipe 14, which speeds up the user to obtain most of the asphalt mixture, and then the first three-way valve 112 is reversed. At this time, the gas is ejected through the jet ring 113, and the gas ejected by the jet ring 113 blows the stirring rod 9334 and a small part of the rotating column 9331 to promote the mixture attached to the surface of the stirring rod 9334 and the rotating column 9331 to fall off to the bottom of the mixing shell 18, thereby reducing the subsequent cleaning steps.

[0049] Meanwhile, the contents not described in detail in the specification are all the prior art known to those skilled in the art, and in step three, the protective film 9335 between the stirring rods 9334 and between the stirring rods 9334 and the rotating column 9331 is retracted when the stirring rods 9334 are retracted, the protective film 9335 blocks the asphalt mixture from entering the rotating column 9331.

[0050] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying that there is any such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives, and variations can be made in the embodiments without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A pipe-type mixing device based on room temperature modified asphalt, comprising a housing, characterized in that: The upper end of the shell is provided with a distribution pipe, the upper end of the distribution pipe is provided with a feeding piece, one end of the bottom side of the shell is fixedly connected to a motor, the motor is connected to a first pulley assembly, the upper end of the first pulley assembly is connected to a fan blade, the lower side of the first pulley assembly is connected to a bevel gear assembly, the driven bevel gear in the bevel gear assembly is connected to a second pulley assembly, the second driving pulley and the second driven pulley in the second pulley assembly are both connected to a stirring piece, a mixing shell is provided in the shell near the upper outer end of the stirring piece, a first cylinder is provided on the upper side of the mixing shell, and the first cylinder is connected to an extrusion piece near the inner end of the mixing shell. A second cylinder is provided at one end of the lower side of the mixing shell, and the extended end of the second cylinder is fixedly connected to a partition slidably connected to the mixing shell, and the mixing shell is fixedly connected to a discharge pipe slidably connected to the partition, an air pump is provided at the lower middle end of the shell, and a second three-way valve is provided at the exhaust end of the air pump. A cabinet door is provided at the front of the shell near the mixing shell end, and the feeding part is composed of an upper hopper, a rotating plate, an air jet plate, and a conduit. The upper hopper is fixedly connected and communicated with the top of the distribution pipe, the conduit is fixedly connected to the side end of the second three-way valve, the upper hopper is rotatably connected to the rotating plate, the lower end of the rotating plate is fixedly connected to the air jet plate, and the conduit is fixedly connected and communicated with the air jet plate; The extrusion member is composed of a pressure plate, a first three-way valve, an air jet ring, and a telescopic member, the pressure plate is slidably connected to the inner end of the mixing shell and fixedly connected to the extension end of the cylinder in the first cylinder, the upper end of the first three-way valve is provided with a ventilation pipe fixedly connected to the upper end of the second three-way valve, the pressure plate is respectively fixedly connected to the first three-way valve and the air jet ring and connected to the telescopic member, and the lower end of the first three-way valve is fixedly connected and communicated with the air jet ring; the stirring member is composed of a rotating rod, a first spring, and a locking member, the first spring is respectively rotatably connected to the shell and the mixing shell, the second driving pulley and the second driven pulley in the second pulley assembly are respectively coaxially fixedly connected to the two rotating rods, the inner end of the rotating rod is fixedly connected to the first spring, the inner upper end of the rotating rod is connected to the locking member, and the upper and lower ends of the locking member are respectively connected to the mixing shell and the first spring.

2. The pipe-type mixing device based on normal temperature modified asphalt according to claim 1, characterized in that: The upper hopper is provided with a latch near the non-rotating end of the rotating plate, the latch is engaged with the rotating plate, a handle is provided on the upper side of the rotating plate away from the rotating end, and a loading pipe is provided on one side of the upper hopper.

3. The pipe-type mixing device based on normal temperature modified asphalt according to claim 2, characterized in that: The telescopic part is composed of a casing, a sliding rod, and a second spring. The pressure plate is slidably connected to the casing and fixedly connected to the sliding rod. The inner end of the casing is fixedly connected to the second spring and slidably connected to the sliding rod. The second spring is fixedly connected to the sliding rod.

4. The pipe-type mixing device based on normal temperature modified asphalt according to claim 3, characterized in that: The locking piece is composed of a micro-cylinder assembly, a locking block, a stirring rod assembly, and a fixed tooth. The upper end of the rotating rod is connected to the micro-cylinder assembly, and the extended end of the micro-cylinder assembly is fixedly connected to the locking block. The stirring rod assembly is respectively connected to the mixing shell and the fixed tooth, and the fixed tooth is engaged with the locking block.

5. The pipe-type mixing device based on normal temperature modified asphalt according to claim 4, characterized in that: The stirring rod assembly is composed of a rotating column, a limiting column, a slider, a stirring rod, and a protective film. The rotating column is slidingly connected to the micro-cylinder assembly and fixedly connected to the fixed tooth. The inner end of the rotating column is fixedly connected to the limiting column and slidingly connected to the slider. The slider is slidingly connected to the limiting column and fixedly connected to the stirring rod. The rotating column and the slider are both fixedly connected to the protective film.

6. The pipe-type mixing device based on normal temperature modified asphalt according to claim 5, characterized in that: The micro-cylinder assembly is provided with a sealing gasket near the end of the rotating column, the surface of the limit column is provided with a reset spring fixedly connected to the rotating column and the slider respectively, the inner end of the fixed tooth is provided with an inner tooth, and the bottom of the rotating column is provided with an outer tooth that fits with the inner tooth. The protective film is made of PVC material, so the rotating column is provided with a groove slidingly connected to the stirring rod and the protective film near the end of the protective film.

7. A rapid mixing method based on a split-pipe mixing device for room-temperature modified asphalt according to any one of claims 5-6, characterized in that: The specific steps include: Step 1: The user introduces the room temperature emulsified asphalt and small-particle mineral aggregate into the feeding hopper in sequence through the feeding pipe, and then the emulsified asphalt and small-particle mineral aggregate enter the feeding part through the distribution pipe. After loading, the feeding pipe is closed. During the process of the modified emulsified asphalt and small-particle mineral aggregate entering the feeding part, the air pump is started to draw in external air, and then the air is injected into the jet plate through the second three-way valve and the conduit. After the air ejected from the jet plate is injected into the feeding hopper, the air exerts air pressure or blows on the modified emulsified asphalt or small-particle mineral aggregate, promoting the modified emulsified asphalt or small-particle mineral aggregate to quickly fall into the mixing shell and reducing the modified emulsified asphalt or small-particle mineral aggregate from adhering to the distribution pipe and the feeding part; Step 2: After the emulsified asphalt and small-particle mineral materials are loaded, the air pump is turned off and the motor is started. The motor drives the first pulley assembly to operate, and the first driven pulley in the first pulley assembly drives the fan blades to rotate. The rotating fan blades promote the gas at the outer end of the shell to enter the shell and finally discharge it to achieve ventilation, so as to keep the temperature inside and outside the mixing device similar. The first driving pulley in the first pulley assembly drives the second pulley assembly to operate through the bevel gear assembly. The second driving pulley and the second driven pulley at the inner end of the second pulley assembly respectively drive the two rotating rods to rotate. The rotating rotating rod drives the locking piece to rotate, and the stirring rod assembly at the inner end of the rotating locking piece rotates. The rotating column at the inner end of the stirring rod assembly drives the limiting column, the slider, and the stirring rod to rotate. The rotating stirring rod stirs the emulsified asphalt and small-particle mineral materials to obtain a mixture of emulsified asphalt and small-particle mineral materials. Step 3: After the mixing is completed, turn off the motor and start the air pump and reverse the second three-way valve. At this time, the gas pumped by the air pump is injected into the pressure plate through the second three-way valve, the vent pipe and the first three-way valve. The gas injected into the pressure plate pushes the two casings to move in the same direction. The excess gas is ejected from the gap between the casing and the pressure plate. Start the second cylinder. The second cylinder drives the partition to rise until the discharge pipe and the mixing shell are fully connected. Then, turn off the second cylinder and start the micro-cylinder assembly. The micro-cylinder assembly drives the locking block to separate from the fixed tooth. Start the first cylinder. The first cylinder drives the extrusion piece to move downward. During the downward movement of the extrusion piece, the pressure plate and the casing provide downward force for the stirring rod and the rotating column respectively. Under the action of the force, The rotating column and the stirring rod near the pressure plate end move downward, and finally most of the rotating column is immersed in the rotating rod, and the stirring rod converges at the lower end near the mixing shell side. Under the push of the rotating column, the first spring contracts. During the downward movement of the extruding part, the pressure plate and the casing squeeze the asphalt mixture in the mixing shell. Under the action of pressure, the asphalt mixture in the mixing shell is squeezed out through the discharge pipe, which speeds up the user to obtain most of the asphalt mixture, and then the first three-way valve is reversed. At this time, the gas is ejected through the jet ring, and the gas ejected by the jet ring blows the stirring rod and a small part of the rotating column to promote the mixture attached to the surface of the stirring rod and the rotating column to fall to the bottom of the mixing shell, thereby reducing the subsequent cleaning steps.

8. The rapid mixing method of the divided-pipe mixing device based on normal temperature modified asphalt according to claim 7, characterized in that: In the step three, when the stirring rods shrink, the protective films between the stirring rods and between the stirring rods and the rotating column shrink, and the protective films block the asphalt mixture and prevent it from entering the rotating column.

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