Asphalt stirring device

Abstract

The utility model provides an asphalt stirring device which comprises a stirring tank, a motor, a stirring rod, a plurality of feeding pipelines and an exhaust assembly, the stirring tank is of a cylindrical structure, a partition plate used for separating a plurality of independent spaces is fixedly arranged in the stirring tank, a first valve capable of being opened is arranged on the partition plate, and a second valve capable of being opened is arranged on the first valve. A discharge hole is formed in the bottom of the stirring tank; the stirring rod is arranged in the stirring tank and is rotationally connected with the center of the partition plate, the motor is fixedly arranged in the middle of the top of the stirring tank, and an output shaft of the motor is fixedly connected with the top end of the stirring rod; the feeding pipeline is vertically and fixedly arranged outside the stirring tank, and the feeding pipeline is communicated with each independent space of the stirring tank; and the exhaust assembly is used for exhausting gas in each independent space. According to the utility model, the problem of material layering caused by sequential feeding of materials is solved, and the stirring efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pitch processing sets, especially a pitch stirring device. BACKGROUND

[0002] In the production of asphalt mixture, the uniform mixing of aggregate, powder and pitch is the core link to determine the performance of pavement. The traditional stirring process usually puts each component into a single stirring tank in sequence, and then performs overall stirring. However, due to the significant difference in density and viscosity between aggregate and pitch, the unzoned stirring process is easy to cause material stratification - pitch is easy to gather at the bottom of the tank or adhere to the surface of aggregate, forming the phenomenon of local uneven cementation. Especially in fine aggregate or fiber reinforced asphalt mixture, gravity settling and segregation problem is more prominent. The existing device needs to prolong the stirring time to make up for the stratification defect, which not only reduces the production efficiency, but also may cause material performance degradation due to excessive stirring. Therefore, there is an urgent need for a pitch stirring device that can realize zoned synchronous stirring, shorten the mixing time and improve uniformity. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a pitch stirring device, which solves the problem of material stratification caused by sequential feeding of materials in the prior art, which affects the stirring efficiency.

[0004] According to the embodiment of the utility model, a pitch stirring device, including stirring tank, motor, stirring rod, a plurality of feeding pipe and exhaust component, the stirring tank is cylindrical structure, the inside fixed setting of stirring tank has the baffle for isolating a plurality of independent space, be provided with the first valve that can open on the baffle, the bottom of stirring tank is provided with the discharge gate;The stirring rod is arranged in the inside stirring tank and with the center rotation connection of baffle, the motor is fixedly arranged in the middle of stirring tank top, and the output shaft of motor and the top of stirring rod are fixedly connected;The feeding pipe is vertically fixedly arranged outside the stirring tank, and the feeding pipe and the stirring tank each independent space are communicated;The exhaust component is used for discharging the gas in each independent space;The feeding pipe is provided with the second valve at the position corresponding to the connecting pipe, and the connecting pipe is provided with the third valve.

[0005] The technical principle of the utility model is that when the material is fed into the stirring tank, the stirring rod rotates at the same time, and the material is fed into the independent space divided in the tank body, and the material is stirred in a smaller space to improve the efficiency.

[0006] As preferred, the first valve includes a through hole located at the position of the baffle close to the side wall of the stirring tank, a valve plate for plugging the through hole is slidably arranged inside the baffle, and one end of the valve plate extends horizontally to the outside of the stirring tank;The second valve and the third valve are knife gate valves.

[0007] Preferably, a support beam is fixedly provided at the bottom of the mixing tank; the support beam has a grid-shaped structure.

[0008] Preferably, the stirring rod includes a main shaft and several crossbars arranged coaxially. The top end of the main shaft is fixedly connected to the motor output shaft. The crossbars are equidistantly distributed along the axial direction of the main shaft and arranged radially. The bottommost crossbar in each independent space is close to the upper surface of the corresponding partition.

[0009] Preferably, the exhaust assembly includes an exhaust pipe and an air pump. The exhaust pipe is vertically arranged and fixedly connected to the inner wall of the mixing tank. The top of the exhaust pipe extends to the outside of the mixing tank and communicates with the air pump. The exhaust pipe is provided with an exhaust hole at the top of each independent space.

[0010] Preferably, filling blocks are provided on both the left and right sides of the exhaust pipe, and the filling blocks are used to reduce the resistance of the exhaust pipe to the movement of materials.

[0011] Preferably, the partition is provided with a number of first valves.

[0012] Preferably, a plurality of connecting pipes are inclinedly arranged between the feeding pipe and the mixing tank, and the lower end of the connecting pipes is connected to the mixing tank; the connection point between the connecting pipes and the mixing tank is located at the upper part of each independent space divided by the partition.

[0013] Compared to existing technologies, this invention offers the following advantages: In existing technologies, different materials are sequentially added to the mixing tank, resulting in different positions within the tank. To ensure thorough mixing, the top and bottom layers of material need to move a considerable distance, increasing mixing time and energy consumption. This invention, with its partition, reduces the mixing space, allowing different materials to enter a smaller area. This smaller space restricts material flow, reducing power consumption during mixing and minimizing stratification caused by gravity differences in aggregates. This is particularly effective for fine aggregates or fiber-reinforced asphalt mixtures. Furthermore, the feed pipe surrounding the mixing tank can simultaneously fill different materials, resulting in higher mixing efficiency and preventing material stratification. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the filling block of this utility model.

[0016] In the above figure: 1, motor; 2, main shaft; 3, stirring tank; 4, feeding pipeline; 5, connecting pipe; 6, through hole; 7, valve plate; 8, exhaust pipe; 9, exhaust hole; 10, cross bar; 11, partition; 12, fourth valve; 13, second valve; 14, third valve; 15, filling block. DETAILED DESCRIPTION

[0017] The technical solutions in the utility model are further described below with reference to the drawings and examples.

[0018] As Figure 1 shown in the utility model embodiment, an asphalt stirring device is provided, which comprises a stirring tank 3, a motor 1, a stirring rod, a plurality of feeding pipelines 4 and an exhaust assembly, the stirring tank 3 is of a cylindrical structure, and a support frame for fixing and supporting is arranged outside the stirring tank 3. A partition 11 for isolating a plurality of independent spaces is fixedly arranged inside the stirring tank 3, and the partition 11 is horizontally arranged. A first valve that can be opened is arranged on the partition 11, and after the material is stirred in each independent space, the first valve is sequentially moved downwards, a discharge port is arranged at the bottom of the stirring tank 3, the material after stirring is discharged from the discharge port, and the discharge port is provided with a fourth valve 12 that can be opened. The stirring rod is arranged inside the stirring tank 3 and rotationally connected to the center of the partition 11, and the lower end of the stirring rod extends to the bottom of the stirring tank 3. The motor 1 is fixedly arranged at the middle of the top of the stirring tank 3, the output shaft of the motor 1 is fixedly connected to the top end of the stirring rod, and the output shaft is rotationally connected to the top of the stirring tank 3. The feeding pipeline 4 is vertically fixedly arranged outside the stirring tank 3, the feeding pipeline 4 is communicated with each independent space of the stirring tank 3, and a hopper is fixedly arranged at the top of the feeding pipeline 4. The exhaust assembly is used for discharging the gas in each independent space, the exhaust assembly discharges the gas in the stirring tank 3, so as to avoid the influence of the gas on the quality of the mixed material. The feeding pipeline 4 is provided with a second valve 13 at the position corresponding to the connecting pipe 5, and the connecting pipe 5 is provided with a third valve 14. In this embodiment, the material from the feeding pipeline 4 into the stirring tank 3 is heated by using a heating device, the inner wall of the stirring tank 3 is provided with a heating device, and the outer part of the stirring tank 3 is wrapped with a heat preservation layer. Different materials are respectively conducted into the stirring tank 3 from different feeding pipelines 4 and connecting pipes 5.

[0019] Preferably, the first valve includes a through hole 6 located on the partition 11 near the side wall of the mixing tank 3. A valve plate 7 for sealing the through hole 6 is slidably disposed inside the partition 11, and one end of the valve plate 7 extends horizontally to the outside of the mixing tank 3. The second valve 13 and the third valve 14 are gate valves, and by controlling each valve, the material enters each independent space sequentially. In this embodiment, the uppermost third valve 14 is closed, the uppermost fourth valve 12 is opened, and then the corresponding valves below are opened or closed sequentially, allowing the material to enter the corresponding independent space through the connecting pipe 5.

[0020] Preferably, a support beam is fixedly installed at the bottom of the mixing tank 3, and the support beam has a grid-shaped structure. The support beam can enhance the load-bearing capacity of the partition 11.

[0021] Preferably, the stirring rod includes a coaxially arranged main shaft 2 and several crossbars 10. The top end of the main shaft 2 is fixedly connected to the output shaft of the motor 1. The crossbars 10 are equidistantly distributed along the axial direction of the main shaft 2 and arranged radially, with the bottommost crossbar 10 in each independent space close to the upper surface of the corresponding partition 11. When it is necessary to discharge material from the independent space, the rotation of the crossbars 10 allows most of the material to fall downwards from the first valve. When the main shaft 2 drives the crossbars 10 to rotate, the crossbars 10 stir the material in the independent space.

[0022] Preferably, the exhaust assembly includes an exhaust pipe 8 and an air pump. The exhaust pipe 8 is vertically arranged and fixedly connected to the inner wall of the mixing tank 3. The top of the exhaust pipe 8 extends to the outside of the mixing tank 3 and communicates with the air pump. Each independent space has an exhaust port 9 at its top. When filling the independent space with material, a gap is provided between the material and the upper partition 11, and the air pump discharges the waste gas in the independent space through the exhaust pipe 8.

[0023] Preferably, filler blocks 15 are provided on both the left and right sides of the exhaust pipe 8. The filler blocks 15 are used to reduce the resistance of the exhaust pipe 8 to the movement of materials. The side of the filler block 15 facing the inside of the mixing tank 3 is inclined, so that the material can pass smoothly through the exhaust pipe 8.

[0024] Preferably, the partition 11 is provided with a number of first valves. Increasing the number of first valves can allow the material to be quickly discharged downward through the first partition 11 after it has been stirred.

[0025] As preferred, the inclined connection between the feeding pipe 4 and the stirring tank 3 is provided with several connecting pipes 5, the lower end of the connecting pipe 5 is connected with the stirring tank 3. The connecting point of the connecting pipe 5 with the stirring tank 3 is located at the upper part of each independent space divided by the partition plate 11, i.e. the connecting point is located at the top of the side wall of the independent space. The material is discharged downward along the vertically arranged feeding pipe 4 and the connecting pipe 5 under the action of gravity.

[0026] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An asphalt mixing plant, characterized in that: The utility model provides a kind of stirring tank, motor, stirring rod, several feed pipes (4) and exhaust assembly comprising, the stirring tank (3) is cylindrical structure, the stirring tank (3) inside is fixedly provided with the baffle (11) for isolating several independent space, the baffle (11) is provided with first valve that can be opened, the bottom of the stirring tank (3) is provided with discharge port;The stirring rod is arranged in the stirring tank (3) inside and is rotationally connected with the center of the baffle (11), the motor (1) is fixedly arranged in the top middle of the stirring tank (3), and the output shaft of motor (1) is fixedly connected with the top end of the stirring rod;The feed pipe (4) is vertically fixedly arranged outside the stirring tank (3), and the feed pipe (4) is communicated with each independent space of stirring tank (3);The exhaust assembly is used for discharging gas in each independent space;The feed pipe (4) is provided with second valve (13) at the position corresponding to connecting pipe (5), and the connecting pipe (5) is provided with third valve (14).

2. An asphalt mixing plant as claimed in claim 1, characterised in that: The first valve includes a through hole (6) located near the side wall of the stirring tank (3) on the baffle (11), a valve plate (7) is slidably arranged inside the baffle (11) to block the through hole (6), and one end of the valve plate (7) extends horizontally to the outside of the stirring tank (3);The second valve (13) and the third valve (14) are knife gate valves.

3. An asphalt mixing plant as claimed in claim 1, characterised in that: The bottom of the stirring tank (3) is fixedly provided with a support beam.

4. An asphalt mixing plant as claimed in claim 1, characterised in that: The stirring rod includes a main shaft (2) and a plurality of crossbars (10) arranged coaxially, the top end of the main shaft (2) is fixedly connected with the output shaft of the motor (1), the crossbars (10) are equidistantly distributed along the axial direction of the main shaft (2) and arranged radially, and the bottommost crossbar (10) in each independent space is close to the upper surface of the corresponding baffle (11).

5. An asphalt mixing plant as claimed in claim 1, characterized in that: The exhaust assembly includes an exhaust pipe (8) and a gas pump, the exhaust pipe (8) is vertically arranged and fixedly connected with the inner wall of the stirring tank (3), the top of the exhaust pipe (8) extends to the outside of the stirring tank (3) and is communicated with the gas pump, and the exhaust pipe (8) is provided with an exhaust hole (9) at the top of each independent space.

6. An asphalt mixing plant as claimed in claim 5, characterised in that: The left and right sides of the exhaust pipe (8) are provided with filling blocks (15), and the filling blocks (15) are used to reduce the resistance of the exhaust pipe (8) to the movement of the material.

7. An asphalt mixing plant as claimed in claim 1, characterized in that: The baffle (11) is provided with a plurality of first valves.

8. An asphalt mixing plant as claimed in claim 1, characterized in that: A plurality of connecting pipes (5) are inclinedly arranged between the feed pipe (4) and the stirring tank (3), the lower end of the connecting pipe (5) is connected with the stirring tank (3), and the connecting point of the connecting pipe (5) and the stirring tank (3) is located in the upper part of each independent space divided by the baffle (11).

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