Stirring device for preparing direct vat set foamed asphalt

Abstract

The utility model is applicable to the technical field of foamed asphalt preparation, and provides a direct feeding type stirring device for foamed asphalt preparation, which comprises a stirring tank body, a feeding hopper for feeding is arranged at the top of the stirring tank body, the bottom of the feeding hopper is rotatably connected with a rotary discharging pipe, and the lower end of the rotary discharging pipe rotatably penetrates into the stirring tank body. A plurality of fixing frames used for fixing are arranged between the outer surface of the feeding hopper and the upper surface of the stirring tank body, the outer surface of the end, located on the upper surface of the stirring tank body, of the rotary discharging pipe is sleeved with a gear, an electric push rod is arranged at the top of the stirring tank body, and a rack is arranged at one end of a telescopic rod of the electric push rod; the foamed asphalt raw material feeding device has the effect of expanding the foamed asphalt raw material feeding range, and meanwhile, the raw materials are sprayed to the transmission structure of the rotary discharging pipe in the throwing-out process, so that the problem of mechanical jamming of the transmission structure in the use process is solved, and the preparation efficiency of foamed asphalt in the preparation process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to foamed asphalt preparation technical field, more specifically, it relates to a kind of stirring device for direct foamed asphalt preparation. BACKGROUND

[0002] The existing asphalt warm mixing device is mainly used to generate asphalt mixture, by directly feeding foamed asphalt into the mixing bin, the foamed asphalt and aggregate in the mixing bin are stirred and mixed, and the asphalt mixture is formed.

[0003] As the existing patent: CN219908454U, discloses an asphalt warm mixing device, which can disperse the incoming foamed asphalt by starting the driving shaft, rotate the S-shaped connecting pipe to introduce the foamed asphalt, and increase the introduction range of the foamed asphalt to improve the stirring and mixing efficiency.

[0004] However, the inventor believes that although the existing technology expands the feeding range, it still has the following problems: the transmission structure of the S-shaped connecting pipe in the existing technology is connected by a belt transmission member, and the belt transmission member is arranged in the mixing bin body. Since the S-shaped connecting pipe rotates 360 degrees to discharge material, the foamed asphalt will inevitably adhere to the transmission structure during the discharging process of the S-shaped connecting pipe. Therefore, the transmission structure may be mechanically jammed during long-term use, which causes the S-shaped connecting pipe to be unable to rotate, and affects the preparation efficiency of the foamed asphalt during preparation. SUMMARY

[0005] To overcome the shortcomings of the prior art, the utility model aims to provide a stirring device for direct foamed asphalt preparation, which can prevent the transmission structure from being mechanically jammed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A stirring device for direct foamed asphalt preparation, comprising a stirring tank body, a feeding hopper for feeding is arranged on the top of the stirring tank body, a rotary discharge pipe is rotatably connected to the bottom of the feeding hopper, the lower end of the rotary discharge pipe penetrates into the stirring tank body, the lower end of the rotary discharge pipe is arranged in a bent manner, a plurality of fixing frames for fixing are arranged between the outer surface of the feeding hopper and the upper surface of the stirring tank body, a gear is sleeved on the outer surface of one end of the rotary discharge pipe located on the upper surface of the stirring tank body, an electric push rod is arranged on the top of the stirring tank body, a rack is arranged on one end of the telescopic rod of the electric push rod and engaged with the gear, and the rack slides on the upper surface of the stirring tank body.

[0008] The utility model is further provided as follows: a swing cylinder is arranged at the lower end of the rotary discharge pipe, and a connecting hose for mutual communication is arranged between the swing cylinder and the lower end of the rotary discharge pipe.

[0009] The utility model further sets up: two horizontal parallel installation plates are arranged on the upper surface of the swing cylinder, installation slide bar is arranged between the two installation plates, the outer surface of installation slide bar is slidably sleeved with a sliding sleeve, the upper surface of the sliding sleeve is hingedly connected with a trigger rod.

[0010] The utility model further sets up: the outer surface of the rotary discharge pipe in the stirring tank body is provided with a fixed shell, a limit rod is arranged on the surface of the fixed shell towards the trigger rod, the other end of the limit rod is slidably penetrated into the fixed shell, one end of the limit rod in the fixed shell is provided with an embedded plate which slides in the fixed shell.

[0011] The utility model further sets up: the top wall of the stirring tank body is provided with a top ring, the rotary discharge pipe is located at the center of the top ring, the inner ring surface of the top ring is provided with a plurality of first protrusions, the upper end of the trigger rod extends into the inner side of the top ring and is in contact with the outer surface of the first protrusion.

[0012] The utility model further sets up: the outer surface of the rotary discharge pipe outside the stirring tank body is provided with a push rod, the other end of the push rod is slidably penetrated into the rotary discharge pipe, an external ring is sleeved on the outer surface of one end of the push rod outside the rotary discharge pipe, a spring is movably sleeved on the outer surface of the push rod between the external ring and the outer surface of the rotary discharge pipe, the one end of the push rod in the rotary discharge pipe is provided with an anti-blocking rod, the upper end of the anti-blocking rod extends into the bottom of the feeding hopper.

[0013] The utility model further sets up: the surface of the fixed frame towards the rotary discharge pipe is provided with a second protrusion, one end of the push rod in the rotary discharge pipe is in contact with the inclined surface of the second protrusion.

[0014] The utility model has the advantages of:

[0015] Firstly, the utility model can expand the range of foamed asphalt raw material feeding, and the raw material is scattered on the transmission structure of the rotary discharge pipe during the process of being thrown out, so that the transmission structure will not be mechanically locked during use, and the preparation efficiency of foamed asphalt during preparation is ensured.

[0016] Secondly, the utility model further increases the range of foamed asphalt by controlling the small amplitude swing of the swing cylinder up and down, so as to improve the mixing efficiency.

[0017] Thirdly, the anti-blocking rod stirs the bottom of the feeding hopper during the process of foamed asphalt raw material feeding, so as to avoid the foamed asphalt raw material from being blocked at the bottom of the feeding hopper as much as possible, and the efficiency of foamed asphalt raw material preparation and mixing process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the stirring device for preparing the direct injection type foamed asphalt of the utility model.

[0019] Figure 2 For Figure 1 The enlarged view at A in the middle;

[0020] Figure 3 It is a front view of the rotating discharge pipe connecting structure of the utility model;

[0021] Figure 4 For Figure 3 The enlarged view at B in the middle.

[0022] In the figure: 1, stirring tank body; 2, feeding hopper; 3, fixed frame; 4, rotating discharge pipe; 5, gear; 6, rack; 7, electric push rod; 8, swing cylinder; 9, connecting hose; 10, mounting plate; 11, mounting slide rod; 12, slide sleeve; 13, trigger rod; 14, fixed shell; 15, limiting rod; 16, built-in plate; 17, tension spring; 18, top ring; 19, first protrusion; 20, push rod; 21, external ring; 22, spring; 23, anti-blocking rod; 24, second protrusion. DETAILED DESCRIPTION

[0023] The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described are only used to explain the related utility model, and are not limited to the utility model. In addition, it should be noted that only parts related to the utility model are shown in the drawings for ease of description.

[0024] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in detail below with reference to the drawings and embodiments.

[0025] Please refer to Figures 1-4 The utility model provides the following technical scheme:

[0026] Specifically refers to a kind of stirring device for preparing direct injection type foamed asphalt, including stirring tank body 1, the top of stirring tank body 1 is provided with the feeding hopper 2 for feeding, the bottom of feeding hopper 2 is rotatably connected with rotating discharge pipe 4, the lower end of rotating discharge pipe 4 rotatably penetrates into stirring tank body 1, the lower end of rotating discharge pipe 4 is bently arranged, the outer surface of feeding hopper 2 and the upper surface of stirring tank body 1 are provided with a plurality of fixed frames 3 for fixing, when using, foamed asphalt raw materials are fed through feeding hopper 2, and the raw materials falling in feeding hopper 2 are slid into stirring tank body 1 through rotating discharge pipe 4 for stirring.

[0027] The rotating discharge pipe 4 is sleeved with a gear 5 on the outer surface of one end of the upper surface of the stirring tank body 1, the top of the stirring tank body 1 is provided with an electric push rod 7, one end of the telescopic rod of the electric push rod 7 is provided with a rack 6 which is meshed and connected with the gear 5, and the rack 6 slides on the upper surface of the stirring tank body 1.

[0028] In use, the electric push rod 7 is started, the electric push rod 7 pulls the rack 6 back and forth to slide on the stirring tank body 1, at this time the rack 6 meshes and drives the gear 5 to rotate back and forth, and the rotating discharge pipe 4 rotates synchronously with the gear 5, since the lower end of the rotating discharge pipe 4 is inclined, the raw materials discharged through the bottom of the rotating discharge pipe 4 are thrown out under the action of centrifugal force, and the above structure is used to expand the range of foamed asphalt raw material feeding, and the raw materials are splashed to the transmission structure of the rotating discharge pipe 4 in the process of throwing out, so that the transmission structure does not appear mechanical jamming in the use process, and the preparation efficiency of foamed asphalt in preparation is ensured.

[0029] The lower end of the rotating discharge pipe 4 is provided with a swing cylinder 8, a connecting hose 9 for mutual communication is arranged between the swing cylinder 8 and the lower end of the rotating discharge pipe 4, the connecting hose 9 is made of a deformable material, such as rubber, metal hose, etc. (which can be adjusted according to actual needs), the swing cylinder 8 is connected with the bottom of the rotating discharge pipe 4 through the connecting hose 9, and the swing cylinder 8 can swing slightly.

[0030] The upper surface of the swing cylinder 8 is provided with two horizontally and parallel arranged mounting plates 10, a mounting slide rod 11 is arranged between the two mounting plates 10, a sliding sleeve 12 is sleeved on the outer surface of the mounting slide rod 11, a trigger rod 13 is hinged on the upper surface of the sliding sleeve 12, a fixed shell 14 is arranged on the outer surface of the rotating discharge pipe 4 in the stirring tank body 1, a limiting rod 15 is arranged on the surface of the fixed shell 14 facing the trigger rod 13, the other end of the limiting rod 15 slides into the fixed shell 14, one end of the limiting rod 15 in the fixed shell 14 is provided with an embedded plate 16 which slides in the fixed shell 14, a tension spring 17 is movably sleeved on the outer surface of the limiting rod 15 and arranged between the embedded plate 16 and the inner wall of the fixed shell 14, when the tension spring 17 is not affected by tension, the tension spring 17 will form a tension on the embedded plate 16, so as to form a pulling effect on the trigger rod 13, so that the swing cylinder 8 remains stationary and does not tilt downward.

[0031] The top wall of the stirring tank body 1 is provided with a top ring 18, the rotating discharge pipe 4 is located at the center of the top ring 18, the inner annular surface of the top ring 18 is provided with a plurality of first protrusions 19, the upper end of the trigger rod 13 extends into the inner side of the top ring 18 and contacts the outer surface of the first protrusions 19.

[0032] In use, when the rotary discharge pipe 4 rotates, the trigger rod 13 rotates synchronously with the rotary discharge pipe 4, and when the trigger rod 13 contacts the first protrusion 19, the first protrusion 19 exerts a pushing force on the trigger rod 13, so that the trigger rod 13 is displaced towards the side close to the fixed shell 14, and the tension spring 17 is stressed and stretched, at this time, the lower end of the trigger rod 13 drives the sliding sleeve 12 to slide on the installation sliding rod 11, and a downward pushing force is exerted on the swing cylinder 8, so that the swing cylinder 8 is inclined downward, and when the trigger rod 13 does not contact the first protrusion 19, the trigger rod 13 is displaced to the initial position under the pulling of the tension spring 17, and the swing cylinder 8 is pulled to swing upward, through the above structure, the swing cylinder 8 can be controlled to swing up and down in a small amplitude during the rotation of the rotary discharge pipe 4, and the range of the foam asphalt entering is further increased to improve the mixing efficiency.

[0033] The rotary discharge pipe 4 is provided with a pushing rod 20 on the outer surface outside the mixing tank body 1, the other end of the pushing rod 20 is slidably penetrated into the rotary discharge pipe 4, the outer surface of the one end of the pushing rod 20 outside the rotary discharge pipe 4 is sleeved with an external ring 21, the external ring 21 and the outer surface of the rotary discharge pipe 4 are provided with a spring 22 movably sleeved on the outer surface of the pushing rod 20, the one end of the pushing rod 20 inside the rotary discharge pipe 4 is provided with an anti-blocking rod 23, the upper end of the anti-blocking rod 23 extends into the bottom of the feeding hopper 2, the surface of the fixed frame 3 towards the rotary discharge pipe 4 is provided with a second protrusion 24, and the one end of the pushing rod 20 inside the rotary discharge pipe 4 is in contact with the inclined surface of the second protrusion 24.

[0034] In use, during the rotation of the rotary discharge pipe 4, the pushing rod 20 rotates synchronously with the rotary discharge pipe 4, and when the pushing rod 20 contacts the inclined surface of the second protrusion 24, the second protrusion 24 exerts a pressing force on the pushing rod 20, so that the pushing rod 20 is displaced inwards, and the spring 22 is stressed and contracted, at this time, the anti-blocking rod 23 is displaced synchronously with the pushing rod 20, and when the pushing rod 20 does not contact the second protrusion 24, the pushing rod 20 is displaced to the initial position under the pushing of the spring 22, and the anti-blocking rod 23 is displaced synchronously, so that the bottom of the feeding hopper 2 can be stirred during the feeding of the foam asphalt raw materials, and the foam asphalt raw materials are prevented from being blocked in the bottom of the feeding hopper 2 as much as possible, and the efficiency of the preparation and mixing process of the foam asphalt raw materials is ensured.

[0035] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the utility model range involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. A kind of direct foamed asphalt preparation mixing device, including mixing tank body (1), the top of mixing tank body (1) is provided with feeding hopper (2) for feeding, it is characterized by: The bottom of the feeding hopper (2) is rotationally connected with a rotary discharge pipe (4), the lower end of the rotary discharge pipe (4) rotationally penetrates into the stirring tank body (1), the lower end of the rotary discharge pipe (4) is arranged in a bent manner, a plurality of fixing frames (3) for fixation are arranged between the outer surface of the feeding hopper (2) and the upper surface of the stirring tank body (1), a gear (5) is sleeved on the outer surface of one end of the rotary discharge pipe (4) located on the upper surface of the stirring tank body (1), an electric push rod (7) is arranged on the top of the stirring tank body (1), one end of the telescopic rod of the electric push rod (7) is provided with a rack (6) which is engagedly connected with the gear (5), and the rack (6) slides on the upper surface of the stirring tank body (1).

2. A plant for the preparation of foamed bitumen according to claim 1, characterized in that: The lower end of the rotary discharge pipe (4) is provided with a swing cylinder (8), and the swing cylinder (8) and the lower end of the rotary discharge pipe (4) are provided with a connecting hose (9) for mutual communication.

3. A plant for the preparation of foamed bitumen according to claim 2, characterized in that: The upper surface of the swing cylinder (8) is provided with two horizontally and parallel arranged mounting plates (10), a mounting sliding rod (11) is arranged between the two mounting plates (10), a sliding sleeve (12) is slidingly sleeved on the outer surface of the mounting sliding rod (11), and a trigger rod (13) is hingedly connected to the upper surface of the sliding sleeve (12).

4. The plant for the preparation of foamed bitumen according to claim 3, characterized in that: The outer surface of the rotary discharge pipe (4) located in the stirring tank body (1) is provided with a fixing shell (14), a limiting rod (15) is arranged on the surface of the fixing shell (14) towards the trigger rod (13), the other end of the limiting rod (15) slidingly penetrates into the fixing shell (14), one end of the limiting rod (15) located in the fixing shell (14) is provided with an embedded plate (16) which slides in the fixing shell (14), and a tension spring (17) is movably sleeved on the outer surface of the limiting rod (15) and arranged between the embedded plate (16) and the inner wall of the fixing shell (14).

5. The plant for the preparation of foamed bitumen according to claim 4, characterized in that: The top wall of the stirring tank body (1) is provided with a top ring (18), the rotary discharge pipe (4) is located at the center of the top ring (18), the inner annular surface of the top ring (18) is provided with a plurality of first protrusions (19), the upper end of the trigger rod (13) extends into the inner side of the top ring (18) and is in contact with the outer surface of the first protrusion (19).

6. The plant for the preparation of foamed bitumen according to claim 5, characterized in that: The outer surface of the rotary discharge pipe (4) located outside the stirring tank body (1) is provided with a push rod (20), the other end of the push rod (20) slidingly penetrates into the rotary discharge pipe (4), an external ring (21) is sleeved on the outer surface of one end of the push rod (20) located outside the rotary discharge pipe (4), a spring (22) is movably sleeved on the outer surface of the push rod (20) and arranged between the external ring (21) and the outer surface of the rotary discharge pipe (4), a blocking rod (23) is arranged on one end of the push rod (20) located in the rotary discharge pipe (4), and the upper end of the blocking rod (23) extends into the bottom of the feeding hopper (2).

7. A plant for the preparation of foamed bitumen according to claim 6, characterized in that: The surface of the fixing frame (3) towards the rotary discharge pipe (4) is provided with a second protrusion (24), and one end of the push rod (20) located in the rotary discharge pipe (4) is in contact with the inclined surface of the second protrusion (24).

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