Hot mixing device for processing asphalt mixture

Abstract

The utility model relates to the technical field of asphalt mixture processing, in particular to a hot mixing device for asphalt mixture processing. The hot mixing device for asphalt mixture processing comprises a supporting frame, a barrel, a discharging pipe, a double-shaft motor, a shell, a storage barrel, a disc, a protrusion, a first baffle, a first guide rod, a return spring and a hot mixing assembly, the upper side of the supporting frame is connected with the shell, and the inner side of the shell is connected with the barrel; the two sides of the top of the barrel are connected and communicated with discharging pipes correspondingly, the tops of the discharging pipes are connected and communicated with storage barrels, and a first guide rod is connected between the two storage barrels. The double-shaft motor drives the disc and the protrusion to push the first baffle, intermittent discharging of the storage barrel is achieved in cooperation with the return spring, the time and amount of mineral aggregate entering the barrel can be accurately controlled, the stability and uniformity of material adding in the hot mixing process are guaranteed, and the quality of an asphalt mixture is improved advantageously.

Description

TECHNICAL FIELD

[0001] The utility model relates to bituminous mixture processing technical field especially relates to a hot mixing device for bituminous mixture processing. BACKGROUND

[0002] The hot mixing device for bituminous mixture processing is a kind of equipment for fully mixing bitumen and mineral aggregate (such as stone, sand, etc.) under high temperature condition, and is widely applied in road construction and maintenance engineering.

[0003] In the existing hot mixing device for bituminous mixture processing, there are many deficiencies in material adding link.Most of the traditional hot mixing devices adopt continuous discharging mode, and it is difficult to accurately control the discharging time and amount of mineral aggregate when entering the hot mixing cylinder.This continuous and uncontrollable discharging mode makes the proportion of materials prone to deviation in the hot mixing process, thereby affecting the quality stability of bituminous mixture.For example, in some large-scale road construction projects, due to the unstable discharging of hot mixing device, the performance of different batches of bituminous mixture exists difference, and the quality of paved road surface is uneven, which affects the service life and driving safety of road. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings, the technical problem of the utility model is to provide a hot mixing device for bituminous mixture processing.

[0005] A hot mixing device for bituminous mixture processing, comprising a support frame, a cylinder, a discharge pipe, a double-shaft motor, a shell, a storage barrel, a disc, a protrusion, a first baffle, a first guide rod, a return spring and a hot mixing assembly, the upper side of the support frame is connected with the shell, the inner side of the shell is connected with the cylinder, the top of the cylinder is connected and communicated with the discharge pipe on both sides, the top of the discharge pipe is connected and communicated with the storage barrel, the first guide rod is connected between the two storage barrels, the first baffle is slidably connected on the first guide rod, the return spring is connected between the upper end of the first baffle and the same side of the storage barrel, the return spring is sleeved on the first guide rod, the first baffle is slidably connected with the discharge pipe on both sides, the slot hole is symmetrically formed on the first baffle, the discharge pipe is aligned with the slot hole, the double-shaft motor is installed on the top of the support frame, the output shaft of the lower end of the double-shaft motor penetrates the inside of the cylinder, the hot mixing assembly is arranged on the double-shaft motor, the disc is connected on the output shaft of the upper end of the double-shaft motor, the protrusion is connected on the top right side of the disc, and the protrusion abuts against the middle part of the first baffle.

[0006] Further, the storage barrel is made of transparent material.

[0007] Further, the hot mixing assembly comprises stirring blades and heating pipes, a plurality of stirring blades located in the inside of the cylinder are connected on the output shaft of the lower end of the double-shaft motor at equal intervals, a plurality of heating pipes are connected on the outer wall of the cylinder at equal intervals in the circumferential direction, and the heating pipes are located in the inside of the shell.

[0008] Further illustrate, still include cylinder, second baffle and second guide rod, the lower end opening of the barrel is slidably connected with the second baffle, the rear side of the second baffle is provided with a blanking groove, the lower left side of the support frame is connected with the second guide rod, the second baffle is slidably connected with the second guide rod, the lower right side of the support frame is provided with a cylinder, and the cylinder telescopic rod is connected with the second baffle.

[0009] Further illustrate, still include collecting bucket and handle, the bottom of the support frame is placed with the collecting bucket located directly below the barrel, and the two sides of the collecting bucket are connected with handles respectively.

[0010] Further illustrate, the sliding connection between the first baffle and the first guide rod, and the sliding connection between the second baffle and the second guide rod are provided with polytetrafluoroethylene bushings.

[0011] The beneficial effects of the utility model are: 1, through the double-shaft motor driving disc and convex push first baffle, cooperate with the return spring to realize the intermittent discharge of the storage barrel, the time and the amount of the mineral aggregate into the barrel can be accurately controlled, the stability and uniformity of the material adding in the hot mixing process are ensured, and the quality of the asphalt mixture is improved.

[0012] 2, in the hot mixing assembly, the stirring blade and the heating pipe work cooperatively, a plurality of stirring blades are driven by the double-shaft motor to fully stir the material in the barrel, and a plurality of heating pipes are distributed equidistantly along the outer wall of the barrel, so that heat can be efficiently transmitted to the inside of the barrel, the asphalt and the mineral aggregate can be rapidly and uniformly mixed at high temperature, and the hot mixing efficiency is greatly improved.

[0013] 3, the cylinder controls the movement of the second baffle, realizes the convenient discharge of the hot-mixed asphalt mixture, the collecting bucket is placed directly below the barrel, and is provided with a handle, so that the operating personnel can quickly take out the collecting bucket after the discharge is completed, the subsequent material transportation or use is carried out, and the convenience of the whole hot mixing process is improved. ACCURATE DESCRIPTION

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is a partial sectional view structure schematic view of the support frame, the barrel and the feeding pipe and other parts of the utility model.

[0016] Figure 3 It is a partial sectional view structure schematic view of the storage barrel, the first guide rod and the return spring and other parts of the utility model.

[0017] Figure 4 It is a three-dimensional structure schematic view of the double-shaft motor, the disc and the first baffle and other parts of the utility model.

[0018] Figure 5This is a partial cross-sectional view of the components of this utility model, including the cylinder, the second baffle, and the second guide rod.

[0019] The markings in the attached diagram are as follows: 1: support frame, 2: cylinder, 3: feed pipe, 4: dual-shaft motor, 5: stirring blade, 6: heating tube, 7: outer shell, 8: collection bucket, 9: handle, 10: storage bucket, 11: disc, 110: protrusion, 12: first baffle, 13: first guide rod, 14: return spring, 15: cylinder, 16: second baffle, 17: second guide rod. Detailed Implementation

[0020] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0021] Example: A hot mixing apparatus for asphalt mixture processing, such as... Figures 1-4 As shown, the assembly includes a support frame 1, a cylinder 2, a feeding pipe 3, a dual-shaft motor 4, a housing 7, a storage bin 10, a disc 11, a protrusion 110, a first baffle 12, a first guide rod 13, a return spring 14, and a hot mixing component. The housing 7 is connected to the upper side of the support frame 1, and the cylinder 2 is connected to the inner side of the housing 7. The feeding pipe 3 is connected to the front and rear sides of the top of the cylinder 2, respectively. The top of the feeding pipe 3 is connected to the storage bin 10 for storing ore. The storage bin 10 is made of transparent material to facilitate viewing the amount of ore stored inside. A first guide rod 13 connects the two storage bins 10, and a first baffle 12 is slidably connected to the first guide rod 13. The upper end of the first baffle 12 has front and rear... A return spring 14 is connected between the storage hopper 10 on the same side and the storage hopper 10 on the same side. The return spring 14 is sleeved on the first guide rod 13. The first baffle 12 is slidably engaged with the discharge pipes 3 on both sides. The first baffle 12 has symmetrical slots. The discharge pipes 3 are aligned with the slots. A dual-axis motor 4 is bolted to the top center of the support frame 1. The lower output shaft of the dual-axis motor 4 passes through the inside of the cylinder 2. The hot mixing component is set on the dual-axis motor 4. A disc 11 is connected to the upper output shaft of the dual-axis motor 4. A protrusion 110 is connected to the top right side of the disc 11. The protrusion 110 abuts against the middle of the first baffle 12. When the disc 11 rotates, it can push the first baffle 12 to move back and forth through the protrusion 110.

[0022] like Figure 2As shown, the hot mixing assembly includes stirring blades 5 and heating pipes 6, a plurality of stirring blades 5 are connected at equal intervals on the lower end output shaft of the double-shaft motor 4 and located inside the barrel 2, a plurality of heating pipes 6 are connected at equal intervals along the circumference of the outer wall of the barrel 2 and located inside the shell 7 to ensure that heat is effectively transferred to the inside of the barrel 2.

[0023] As shown in Figure 1 , Figure 2 and Figure 5 , it further includes a collection bucket 8, a handle 9, an air cylinder 15, a second baffle 16 and a second guide rod 17, the collection bucket 8 located directly below the barrel 2 is placed on the inner bottom of the support frame 1 and used to collect the hot-mixed asphalt mixture, the handle 9 is welded on the left and right sides of the collection bucket 8, the second baffle 16 is slidingly connected at the opening of the lower end of the barrel 2, a drop chute is formed on the rear side of the second baffle 16 for discharging the hot-mixed asphalt mixture, the second guide rod 17 is connected to the left side of the lower part of the support frame 1, the second baffle 16 is slidingly connected to the second guide rod 17, and the air cylinder 15 is installed on the right side of the lower part of the support frame 1, with the extension rod of the air cylinder 15 connected to the second baffle 16.

[0024] A polytetrafluoroethylene bushing is arranged at the sliding connection between the first baffle 12 and the first guide rod 13 and between the second baffle 16 and the second guide rod 17 to reduce friction and prolong service life.

[0025] When the asphalt mixture is hot-mixed, the mineral aggregates of the asphalt mixture are added into the storage barrels 10, the double-shaft motor 4 is started, the upper end output shaft rotates to drive the disc 11 to rotate, the protrusions 110 on the disc 11 push the first baffle 12 to move to the front side, at this time the tension spring 14 is deformed under stress, when the disc 11 continues to rotate and the protrusions 110 no longer abut against the first baffle 12, the tension spring 14 rebounds to reset and drives the first baffle 12 to move to the back side, in the process of moving to the back side, the slot hole is aligned with the discharge pipe 3, the mineral aggregates in the storage barrels 10 fall into the barrel 2 through the discharge pipe 3, and when the first baffle 12 is at the front side position, the slot hole is misaligned with the discharge pipe 3, thereby achieving intermittent discharge of the mineral aggregates, at the same time, the external metering pump injects liquid asphalt into the barrel 2, and the heating pipes 6 are started to heat the mineral aggregates and asphalt in the barrel 2. The double-shaft motor 4 continues to operate, the lower end output shaft drives the stirring blades 5 to fully mix the mineral aggregates and asphalt in the barrel 2, so that the asphalt and mineral aggregates are uniformly fused at high temperature to form the asphalt mixture.

[0026] When the hot mixing of the asphalt mixture is completed, the air cylinder 15 is started, the air cylinder 15 telescopic rod is extended, the second baffle 16 is driven to move to the forward side along the second guide rod 17, when the falling slot on the second baffle 16 is aligned with the lower port of the cylinder 2, the mixture in the cylinder 2 is discharged downwardly into the collecting barrel 8, the discharging is completed, after the discharging is completed, the telescopic rod of the air cylinder 15 is shortened to reset, the second baffle 16 is driven to move to the rear side, and the lower port of the cylinder 2 is blocked. Finally, the hand-held handle 9 takes out the collecting barrel 8 from the support frame 1, so that the internal mixture is used subsequently.

[0027] The above embodiments are provided for those skilled in the art to implement or use the utility model, those skilled in the art can make various modifications or changes to the above embodiments without departing from the utility model idea of the utility model, therefore the protection scope of the utility model is not limited by the above embodiments, and should be the maximum scope meeting the innovative features mentioned in the claims.

Claims

1. A hot mix plant for processing asphalt mixtures, characterized by: The utility model relates to a kind of hot-mixing devices, including support frame (1), barrel (2), blanking tube (3), double-shaft motor (4), shell (7), storage barrel (10), disc (11), protrusion (110), first baffle (12), first guide rod (13), return spring (14) and hot-mixing component, support frame (1) upper side is connected with shell (7), shell (7) inner side is connected with barrel (2), barrel (2) top two sides are connected and are communicated with blanking tube (3), blanking tube (3) top is connected and is communicated with storage barrel (10), two storage barrels (10) are connected with first guide rod (13), first guide rod (13) is slidably connected with first baffle (12), first baffle (12) upper end two sides and same side storage barrel (10) between are connected with return spring (14), return spring (14) is sleeved on first guide rod (13), first baffle (12) is slidably matched with two sides blanking tube (3), first baffle (12) is symmetrically provided with slot on, blanking tube (3) is aligned with slot, support frame (1) top middle is installed with double-shaft motor (4), double-shaft motor (4) lower end output shaft penetrates inside barrel (2), hot-mixing component is set on double-shaft motor (4), double-shaft motor (4) upper end output shaft is connected with disc (11), disc (11) top right side is connected with protrusion (110), which is against the middle part of first baffle (12).

2. A hot mix plant for processing asphalt mixtures according to claim 1, characterized in that: The storage barrel (10) is made of transparent material.

3. A hot mix plant for processing asphalt mixtures according to claim 2, characterized in that: The hot-mixing component includes stirring blades (5) and heating pipes (6), and a plurality of stirring blades (5) are connected to the lower end output shaft of the double-shaft motor (4) at equal intervals and located inside the barrel (2).

4. A hot mix plant for processing asphalt mixtures according to claim 3, characterized in that: The utility model also includes a pneumatic cylinder (15), a second baffle (16) and a second guide rod (17), the second baffle (16) is slidably connected to the lower end opening of the barrel (2), the second baffle (16) is provided with a blanking groove at the back side, the second guide rod (17) is connected to the lower left side of the support frame (1), the second baffle (16) is slidably connected to the second guide rod (17), and the pneumatic cylinder (15) is installed at the lower right side of the support frame (1), and the pneumatic cylinder (15) is connected to the second baffle (16).

5. A hot mix plant for processing asphalt mixtures according to claim 4, characterized in that: The utility model also includes a collecting barrel (8) and a handle (9), and the collecting barrel (8) is placed at the bottom of the support frame (1) and located directly below the barrel (2), and the handle (9) is connected to the two sides of the collecting barrel (8).

6. A hot mix plant for processing asphalt mixtures according to claim 5, characterized in that: Teflon bushings are arranged at the sliding connection between the first baffle (12) and the first guide rod (13) and between the second baffle (16) and the second guide rod (17).

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