Aggregate distribution system of concrete mixing plant

Abstract

The invention relates to a concrete mixing plant aggregate distribution system which comprises a feeding conveying part, a plurality of discharging bins and discharging conveying parts, the discharging conveying parts are arranged below the discharging bins, and the discharging bins are arranged in the conveying direction of the discharging conveying parts; a distribution assembly is further arranged between the feeding conveying part and the discharging bin and comprises a conveying pipe, a plurality of distribution pipes and a distribution driving part, the end, close to the feeding conveying part, of the conveying pipe inclines upwards and communicates with the feeding conveying part, and a distribution hole communicating with the inner cavity is formed in the side wall of the conveying pipe; a baffle is arranged at the end, away from the feeding conveying piece, of the distribution pipe. The aggregate is directly introduced into the conveying pipe, the distribution pipe rotates until the distribution hole faces downwards, so that the aggregate can fall into the corresponding discharging bin, the baffle can continue to be conveyed along the guide pipe, the process of conveying the aggregate into the discharging bin can be continuously carried out, and the efficiency of conveying the aggregate into the discharging bin is improved.

Description

Technical Field

[0001] This application relates to the technical field of concrete production equipment, and particularly to an aggregate distribution system for a concrete mixing plant. Background Art

[0002] A mixing plant is mainly used to proportion and mix various aggregates to obtain concrete that meets the requirements.

[0003] Chinese Patent with application number CN201710614501.2 discloses an aggregate feeding and batching system for a concrete mixing plant, including a batching system. The batching system includes several bins, a discharge hopper is provided below the bins, a batching belt for transporting the aggregates to the mixing tank is provided below the discharge hopper. The batching system also includes a track, the track is arranged along the extending direction of several bins, a transport vehicle is provided on the track, the transport vehicle is slidably connected to the track along the extending direction of the track. It also includes a feeding system, the feeding system includes a feeding belt, one end of the feeding belt extends to the upper side of the transport vehicle, a first feeding hopper is provided at the end of the feeding belt far from the transport vehicle, and the transport vehicle slides to drive the aggregates to be transported to various parts of the bins.

[0004] In the above solution, the transport vehicle is used to transport the aggregates into different bins. However, during the transportation process of the transport vehicle, there is no equipment for receiving the aggregates below the feeding belt. When the transport vehicle is working, the feeding belt needs to stop working, thus affecting the efficiency of aggregate transportation.

[0005] Therefore, a new technical solution is needed to solve the above problems. Summary of the Invention

[0006] In order to make the transportation of aggregates more convenient, this application provides an aggregate distribution system for a concrete mixing plant.

[0007] An aggregate distribution system for a concrete mixing plant provided by this application adopts the following technical solutions: An aggregate distribution system for a concrete mixing plant includes a feeding conveyor, several discharge bins for storing aggregates, and a discharging conveyor for transporting the aggregates to the mixing tank. The discharging conveyor is arranged below the discharge bins, and the discharge bins are arranged along the conveying direction of the discharging conveyor; A distribution component for distributing different aggregates into different discharge bins is further provided between the feeding conveyor and the discharge bin. The distribution component includes a conveying pipe arranged obliquely, a plurality of distribution pipes coaxially and rotatably connected to the conveying pipe, and a distribution driving member for driving the distribution pipes to rotate respectively. One end of the conveying pipe close to the feeding conveyor is inclined upward and communicated with the feeding conveyor. The distribution pipes are arranged along the length direction of the conveying pipe and are respectively located above the discharge bins. Distribution holes communicated with the inner cavity are formed in the side wall of the conveying pipe. A baffle for closing half of the opening is arranged at the end of the distribution pipe far from the feeding conveyor, and the distance between the axis of the baffle and the two side walls of the distribution hole parallel to the axis of the distribution pipe is equal.

[0008] By adopting the above technical solution, the aggregates are directly fed into the conveying pipe. When the distribution pipe rotates to make the distribution hole face downward, the aggregates can fall into the corresponding discharge bin, and the baffle can continue to convey along the guiding pipe, so that the process of conveying the aggregates into the discharge bin can continue, and the efficiency of conveying the aggregates into the discharge bin is accelerated.

[0009] Optionally: The inner wall of the distribution hole is flush with the side wall of the baffle close to the feeding conveyor.

[0010] By adopting the above technical solution, when the aggregates move from the distribution hole into the discharge bin, the aggregates will not accumulate in the space between the distribution pipe and the baffle.

[0011] Optionally: A guiding pipe is fixed on the outer wall of the distribution pipe. The guiding pipe is communicated with the distribution hole, and one end of the guiding pipe far from the distribution pipe can move above the discharge bin.

[0012] By adopting the above technical solution, the aggregates can move along the guiding pipe into the discharge bin. Thus, when the distance between the distribution hole and the discharge bin is relatively long, the aggregates can still stably fall into the discharge bin without directly falling into the production environment, and the conveying of the aggregates is not easily affected.

[0013] Optionally: An opening and closing component for opening and closing the opening of the guiding pipe is further arranged at one end of the guiding pipe far from the distribution pipe. The opening and closing component includes two first connecting rods, two second connecting rods rotatably connected to the side wall of the guiding pipe, a cover plate for closing the opening of the guiding pipe, and an elastic member for driving the cover plate to move. One first connecting rod and one second connecting rod are in a group and are located on the same side wall of the guiding pipe. The first connecting rods and the second connecting rods in different groups are arranged on the mutually remote side walls of the guiding pipe. One ends of the first connecting rod and the second connecting rod in the same group are hinged to the guiding pipe, and the other ends are hinged to the cover plate. The connecting line of the hinge axes of the first connecting rod and the second connecting rod in the same group is a parallelogram, and the cover plate abuts against one end of the guiding pipe far from the distribution pipe.

[0014] By adopting the above technical solution, when the aggregate does not flow out of the guide pipe, the opening of the guide pipe away from the distribution pipe can be closed by using the cover plate, so that substances such as dust generated during the transportation of the aggregate will not directly diffuse from the guide pipe into the production environment, thereby reducing the diffusion of dust and the like.

[0015] Optionally: A pushing block is provided at one end of the cover plate away from the guide pipe, and the pushing block can abut against the upper end of the blanking bin to drive the cover plate to move relative to the guide pipe.

[0016] By adopting the above technical solution, when the distribution pipe rotates, it can drive the pushing block to abut against the side wall of the blanking bin. Then, the guide pipe continues to move while the pushing block can remain stationary relative to the blanking bin, so that the cover plate moves relative to the guide pipe, and the cover plate opens the opening of the guide pipe. The opening of the guide pipe is automatically opened, so that there is no need to manually rotate the cover plate when discharging materials from the guide pipe, making the discharging process of the aggregate more convenient.

[0017] Optionally: An extension plate is further provided on the end face of the baffle plate close to the axis of the distribution pipe. The extension plate is arranged parallel to the axis of the distribution pipe and extends in the axial direction of the distribution hole. The extension plate is fixed to the inner wall of the distribution pipe.

[0018] By adopting the above technical solution, when the aggregate moves along the conveying pipe, the moving speed of the aggregate will gradually increase. When the aggregate contacts the baffle plate, it will be subjected to a reaction force exerted by the baffle plate and move in the reverse direction. Moreover, the shape of the aggregate is irregular, so the aggregate will jump upward and cross the baffle plate and continue to move along the conveying pipe, affecting the subsequent discharging of the aggregate. The extension plate can prevent the upward movement of the aggregate, so that the aggregate can flow along the guide pipe into the blanking bin. Optionally: A guide plate is arranged between the baffle plate and the extension plate. One end of the guide plate close to the extension plate is inclined towards the axis direction of the distribution hole, and the guide plate is fixed to the inner wall of the distribution pipe.

[0019] By adopting the above technical solution, when the aggregate contacts the baffle plate, the aggregate will be guided by the guide plate to move downward, making it easier for the aggregate to move towards the inside of the guide pipe and fall into the blanking bin. Moreover, when the aggregate impacts the guide plate, a downward component force will be generated at the contact position between the aggregate and the guide plate, thereby reducing the impact force received by the guide plate, reducing the impact force between the guide plate and the aggregate when they contact, and making the aggregate and the guide plate not easily damaged.

[0020] Optionally: A sound-absorbing cotton is arranged between the guide plate and the baffle plate, and the sound-absorbing cotton fills the gap between the guide plate and the baffle plate.

[0021] By adopting the above technical solution, since impact will occur when the aggregate contacts the guiding plate, which will cause huge noise of the guiding plate, while the sound-absorbing cotton can absorb the noise generated by the impact between the aggregate and the guiding plate, reducing the generation of noise.

[0022] In summary, the present application includes the following beneficial technical effects: The aggregate is conveyed by the conveying pipe, and then the movement of the aggregate is blocked by the baffle plate so that the aggregate can fall into the corresponding blanking bin along the distribution holes, enabling the process of conveying the aggregate into the blanking bin to continue, making the conveying of the aggregate faster and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of an embodiment of the present application; Figure 2 is a schematic diagram for showing the installation position of the distribution component in an embodiment of the present application; Figure 3 is a schematic diagram for showing the structure of the opening and closing component in an embodiment of the present application; Figure 4 is a schematic diagram for showing the internal structure of the distribution pipe in an embodiment of the present application.

[0024] In the figure, 1, feeding conveyor; 2, blanking bin; 3, discharging conveyor; 4, distribution component; 41, conveying pipe; 42, distribution pipe; 421, distribution hole; 422, baffle plate; 43, distribution driving part; 44, guiding pipe; 45, extension plate; 46, guiding plate; 47, sound-absorbing cotton; 5, opening and closing component; 51, first connecting rod; 52, second connecting rod; 53, cover plate; 54, elastic part; 55, pushing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further elaborates on the present application with reference to the accompanying drawings.

[0026] An aggregate distribution system for a concrete mixing plant disclosed in the present application, as Figure 1 and Figure 2As shown in the figure, it includes a feeding conveyor 1, several blanking bins 2 for storing aggregates, and a blanking conveyor 3 for conveying the aggregates to the mixing tank. Both the feeding conveyor 1 and the blanking conveyor 3 are belt conveyors. The feeding conveyor 1 is horizontally arranged. The blanking bins 2 are arranged above the feeding conveyor 1 and along the conveying direction of the feeding conveyor 1. At one end of the feeding conveyor 1 close to the mixing tank, there is also an upwardly inclined belt conveyor for conveying the aggregates falling from the blanking bins 2 onto the feeding conveyor 1 into the mixing tank. Between the feeding conveyor 1 and the blanking bins 2, there is also a distribution assembly 4 for distributing different types of aggregates into different blanking bins 2. The distribution assembly 4 includes an inclined conveying pipe 41, several distribution pipes 42 coaxially rotating on the conveying pipe 41, and a distribution driving member 43 for driving the distribution pipes 42 to rotate. The conveying pipe 41 and the distribution pipes 42 are rotationally connected by means of mechanical seals. The end of the conveying pipe 41 close to the feeding conveyor 1 is upwardly inclined, and a receiving hopper is provided at the upwardly inclined end of the conveying pipe 41. The end of the feeding conveyor 1 close to the conveying pipe 41 is upwardly inclined, and the upper end of the feeding conveyor 1 is arranged above the receiving hopper, so as to convey the aggregates into the conveying pipe 41.

[0027] As Figure 3 and Figure 4 shown in the figure, the conveying pipe 41 is arranged along the arrangement direction of the blanking bins 2 and is located above the blanking bins 2. The conveying pipe 41 is divided into multiple coaxially arranged pipes. The distribution pipes 42 are arranged between adjacent conveying pipes 41 and are rotationally connected to each other. The inner wall of the distribution pipe 42 is flush with the inner wall of the conveying pipe 41. Distribution holes 421 communicating with its inner cavity are provided on the outer wall of the distribution pipe 42. The distribution holes 421 are rectangularly arranged. Each distribution pipe 42 corresponds to one blanking bin 2. A semi-circular baffle 422 is fixedly installed at the end of the distribution pipe 42 far from the feeding conveyor 1. The axis of the baffle 422 coincides with the axis of the distribution pipe 42, and the side wall of the baffle 422 abuts against the inner wall of the distribution pipe 42, so as to close half of the opening at the end of the distribution pipe 42 far from the feeding conveyor 1. The distance from the axis of the baffle 422 to the spacing between the two side walls of the distribution hole 421 parallel to the axis of the distribution pipe 42 is equal, and the inner wall of the distribution hole 421 can be flush with the side wall of the baffle 422 close to the feeding conveyor 1. When the distribution hole 421 rotates downward, the aggregates can move downward through the distribution hole 421 and flow into the blanking bin 2.

[0028] The distribution driving member 43 selects a motor in this embodiment. The distribution driving member 43 is installed on the outer wall of the conveying pipe 41. A speed reducer connected to the driving end of the distribution driving member 43 is also provided on the outer wall of the conveying pipe 41. The output shaft of the speed reducer meshes with a gear ring installed on the outer wall of the distribution pipe 42 through a gear, so as to drive the distribution pipe 42 to rotate by using the distribution driving member 43.

[0029] Since the conveying pipe 41 is inclined, the distances from the distribution holes 421 at different positions to the blanking bin 2 are also different. In order to enable the aggregate falling from the distribution holes 421 to fall better into the corresponding blanking bin 2, a guiding pipe 44 is also installed on the outer wall of the distribution pipe 42. The axis of the guiding pipe 44 is perpendicular to the axis of the distribution pipe 42, and the guiding pipe 44 communicates with the distribution holes 421. After the distribution holes 421 rotate downward, the guiding pipe 44 can be used to guide the falling aggregate into the blanking bin 2, so that the aggregate is not likely to fall outside the blanking bin 2.

[0030] Since dust will be generated during the transportation of the aggregate, and the end of the guiding pipe 44 far from the distribution pipe 42 is open, the dust will directly diffuse into the production environment through the guiding pipe 44. Therefore, an opening and closing assembly 5 for opening and closing the opening of the guiding pipe 44 is also provided at the end of the guiding pipe 44 far from the distribution pipe 42. The opening and closing assembly 5 includes two first connecting rods 51, two second connecting rods 52 rotatably connected to the side wall of the guiding pipe 44, a cover plate 53 for closing the opening of the guiding pipe 44, and an elastic member 54 for driving the cover plate 53 to move. One first connecting rod 51 and one second connecting rod 52 are a group and are arranged on the same side wall of the guiding pipe 44 perpendicular to the axis of the distribution pipe 42, and the other group is arranged on the side wall far from the guiding pipe 44. The ends of the first connecting rod 51 and the second connecting rod 52 far from the guiding pipe 44 are hinged to the cover plate 53, and the connection line of the hinge axes of the first connecting rod 51 and the second connecting rod 52 is arranged in a parallelogram. The elastic member 54 is a spring in this embodiment. One end of the spring is installed on the side wall of the guiding pipe 44, and the other end of the spring is installed on the first connecting rod 51, so as to push the end of the first connecting rod 51 close to the cover plate 53 to rotate towards the guiding pipe 44, so that the cover plate 53 can stably abut against the guiding pipe 44, so that the cover plate 53 closes the opening of the guiding pipe 44.

[0031] In order to enable the cover plate 53 to automatically open the opening of the guiding pipe 44 when the guiding pipe 44 approaches the corresponding blanking bin 2, a pushing block 55 is also provided on the side wall of the cover plate 53 far from the guiding pipe 44. The pushing block 55 is arranged at one end of the cover plate 53 close to its opening direction, and the pushing block 55 can abut against the upper end of the side wall of the blanking bin 2. During the rotation of the distribution pipe 42, the pushing block 55 is used to make the cover plate 53 and the blanking bin 2 relatively stationary, so that the lower end opening of the guiding pipe 44 is no longer closed by the cover plate 53.

[0032] When the aggregate impacts the baffle 422, the aggregate will not move directly upward, causing the aggregate to flow away from the gap between the baffle 422 and the distribution pipe 42. An extension plate 45 is further provided on the end face of the baffle 422 close to the axis of the distribution pipe 42. The side wall of the extension plate 45 parallel to the axis of the distribution pipe 42 is fixed to the inner wall of the distribution pipe 42, and the extension plate 45 extends in the direction of the feeding conveyor 1. When the aggregate contacts and collides with the baffle 422, the extension plate 45 can be used to hinder the upward movement of the aggregate, so that the aggregate will not cross the baffle 422 and continue to be conveyed downward to the lower part of the conveying pipe 41.

[0033] In order to reduce the impact generated when the aggregate impacts the baffle 422, a guide plate 46 is further provided between the extension plate 45 and the baffle 422. One end of the guide plate 46 close to the extension plate 45 is inclined in the direction of the feeding conveyor 1, so that when the aggregate impacts the guide plate 46, it can generate a downward oblique movement, thereby reducing the impact of the aggregate on the guide plate 46.

[0034] A gap is further provided between the guide plate 46 and the baffle 422, and the gap is filled with a sound-absorbing cotton 47. The sound-absorbing cotton 47 fills the gap between the guide plate 46 and the baffle 422. When the aggregate impacts the guide plate 46, a certain amount of impact can be absorbed by the sound-absorbing cotton 47, and at the same time, the noise generated by the impact of the aggregate on the guide plate 46 can also be reduced.

[0035] The implementation principle of this embodiment is as follows: The aggregate is unloaded from the ship or vehicle to the feeding conveyor 1 by mechanical equipment such as an excavator. The feeding conveyor 1 conveys the aggregate into the conveying pipe 41. The distribution pipe 42 corresponding to the discharging bin 2 of the corresponding aggregate material rotates, so that the guide pipe 44 rotates to the downward state. When the distribution pipe 42 rotates, the pushing block 55 abuts against the discharging bin 2, so that the cover plate 53 is separated from the lower end of the guide pipe 44. The aggregate enters the discharging bin 2 through the guide pipe 44, and the aggregate in the discharging bin 2 is conveyed into the mixing tank by the feeding conveyor 1.

[0036] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An aggregate distribution system for a concrete mixing plant, characterized in that: It includes a feeding conveyor (1), several blanking bins (2) for storing aggregates, and a blanking conveyor (3) for conveying the aggregates to a mixing tank. The blanking conveyor (3) is arranged below the blanking bins (2), and the blanking bins (2) are arranged along the conveying direction of the blanking conveyor (3). A distribution assembly (4) for distributing different aggregates into different blanking bins (2) is further arranged between the feeding conveyor (1) and the blanking bins (2). The distribution assembly (4) includes an inclined conveying pipe (41), several distribution pipes (42) coaxially and rotatably connected to the conveying pipe (41), and a distribution driving member (43) for driving the distribution pipes (42) to rotate respectively. One end of the conveying pipe (41) close to the feeding conveyor (1) is inclined upward and communicates with the feeding conveyor (1). The distribution pipes (42) are arranged along the length direction of the conveying pipe (41) and are respectively located above the blanking bins (2). Distribution holes (421) communicating with the inner cavity are formed in the side wall of the conveying pipe (41). A baffle (422) for closing half of the opening is arranged at the end of the distribution pipe (42) far from the feeding conveyor (1). The distance from the axis of the baffle (422) to the two side walls of the distribution hole (421) parallel to the axis of the distribution pipe (42) is equal.

2. The aggregate distribution system of a concrete mixing plant according to claim 1, wherein: The inner wall of the distribution hole (421) is flush with the side wall of the baffle (422) close to the feeding conveyor (1).

3. The aggregate distribution system of a concrete mixing plant according to claim 1, characterized in that: A guiding pipe (44) is fixed on the outer wall of the distribution pipe (42). The guiding pipe (44) communicates with the distribution hole (421), and the end of the guiding pipe (44) far from the distribution pipe (42) can move above the blanking bin (2).

4. A kind of aggregate distribution system of a concrete mixing plant according to claim 3, characterized in that: An opening and closing assembly (5) for opening and closing the opening of the guiding pipe (44) is further arranged at the end of the guiding pipe (44) far from the distribution pipe (42). The opening and closing assembly (5) includes two first connecting rods (51), two second connecting rods (52) rotatably connected to the side wall of the guiding pipe (44), a cover plate (53) for closing the opening of the guiding pipe (44), and an elastic member (54) for driving the cover plate (53) to move. One first connecting rod (51) and one second connecting rod (52) form a group and are located on the same side wall of the guiding pipe (44). The first connecting rods (51) and the second connecting rods (52) of different groups are arranged on the mutually remote side walls of the guiding pipe (44). One end of the first connecting rod (51) and the second connecting rod (52) in the same group is hinged to the guiding pipe (44), and the other end is hinged to the cover plate (53). The connecting line of the hinge axes of the first connecting rod (51) and the second connecting rod (52) in the same group is a parallelogram. The cover plate (53) abuts against the end of the guiding pipe (44) far from the distribution pipe (42).

5. The aggregate distribution system of a concrete mixing plant according to claim 4, characterized in that: A pushing block (55) is arranged at the end of the cover plate (53) far from the guiding pipe (44). The pushing block (55) can abut against the upper end of the blanking bin (2) to drive the cover plate (53) to move relative to the guiding pipe (44).

6. The aggregate distribution system of a concrete mixing plant according to claim 1, characterized in that: An extension plate (45) is further provided on the end surface of the baffle plate (422) close to the axis of the distribution pipe (42). The extension plate (45) is arranged parallel to the axis of the distribution pipe (42), and the extension plate (45) extends in the axial direction of the distribution hole (421). The extension plate (45) is fixed to the inner wall of the distribution pipe (42).

7. The aggregate distribution system of a concrete mixing plant according to claim 6, characterized in that: A guide plate (46) is arranged between the baffle plate (422) and the extension plate (45). One end of the guide plate (46) close to the extension plate (45) is inclined in the axial direction of the distribution hole (421). The guide plate (46) is fixed to the inner wall of the distribution pipe (42).

8. A kind of aggregate distribution system of a concrete mixing plant according to claim 7, characterized in that: A sound-absorbing cotton (47) is arranged between the guide plate (46) and the baffle plate (422). The sound-absorbing cotton (47) fills the gap between the guide plate (46) and the baffle plate (422).

Images