An asphalt concrete mixing plant changeover device

Abstract

The utility model discloses an asphalt concrete mixing station material changing device relates to mixing station material changing technical field, including bearing platform, the both sides of bearing platform top are equipped with mixing jar and residual material collection cylinder respectively, be equipped with the material distribution subassembly between mixing jar and residual material collection cylinder top, is used for avoiding the residual material of material changing to leave mixture, the material distribution subassembly includes transparent material changing cylinder, the transparent material changing cylinder is located between mixing jar and residual material collection cylinder top, one end center in the transparent material changing cylinder is connected with the pivot of bearing, one end of pivot is equipped with the connecting inclined plate fixedly, and the connecting inclined plate is located in the center of transparent material changing cylinder inside. The utility model discloses through the rotation of drive connecting inclined plate and U type separation frame, has realized the quick, accurate switching of material flow between mixing jar and residual material collection cylinder, thereby can automatically introduce the residual old material into the collection cylinder when material changing, effectively prevented the residual mixture of different batches or kinds of material in mixing jar, guaranteed the product quality.

Description

Technical Field

[0001] This utility model relates to the field of material changing technology in asphalt concrete mixing plants, specifically a material changing device for asphalt concrete mixing plants. Background Technology

[0002] Asphalt concrete mixing plants are core equipment in road construction. During the production process, it is often necessary to change the asphalt mixture formula to produce different types of finished materials. This process requires the use of a material changing device.

[0003] For example, Chinese patent application CN202322375756.1 describes a material changing device for an asphalt concrete mixing plant. This device includes a material changing seat, a cold material bin mounted above the material changing seat, a material changing conveyor belt mounted on the lower left of the material changing seat, and a production conveyor belt mounted on the lower right of the material changing seat. A support plate is mounted on the right end of the upper surface of the material changing seat, and a drive mechanism is mounted on the upper surface of the support plate. Support rods are rotatably connected to the right ends of both the front and rear surfaces of the material changing seat, and an adjustment mechanism is provided on the lower surface of the material changing seat. In this invention, the asphalt concrete needs to be heated during use. When the receiving rope in the drive mechanism is released, the baffle plate is opened, and the asphalt concrete falls onto the production conveyor belt. When the asphalt concrete needs to be changed, the second motor in the adjustment mechanism drives the left end of the material changing seat to tilt downwards, allowing the asphalt concrete to be conveyed onto the material changing conveyor belt and then to the storage bin.

[0004] However, in actual use, after the above-mentioned device has finished conveying one type of aggregate, a large amount of that aggregate will remain on the conveyor belt. When switching to the next type of aggregate, these residues will mix with it, resulting in inaccurate formula and substandard quality of the mixture in the initial production of the next batch. It usually needs to be treated as waste, resulting in the waste of raw materials and energy. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a material changing device for an asphalt concrete mixing plant. By driving the connecting inclined plate and U-shaped partition frame to rotate, it achieves rapid and precise switching of material flow between the mixing drum and the residual material collection cylinder. This allows for the automatic introduction of residual old material into the collection cylinder during material changing, effectively preventing the mixing of different batches or types of materials in the mixing drum, ensuring product quality, and effectively solving the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an asphalt concrete mixing plant material changing device, including a support platform, wherein a mixing cylinder and a residual material collection cylinder are respectively provided on both sides of the top of the support platform; A material distribution component is provided between the top of the mixing cylinder and the residue collection cylinder to prevent residual material from being left behind and mixed during material replacement; The material distribution assembly includes a transparent material changing cylinder, which allows operators to visually observe the flow of raw materials and ensures the reliability of the material changing process. The transparent material changing cylinder is located between the top of the mixing tank and the residual material collection cylinder. A rotating shaft is connected to the center of one end of the transparent material changing cylinder via a bearing. A connecting inclined plate is fixedly provided at one end of the rotating shaft, and the connecting inclined plate is located at the center of the transparent material changing cylinder. U-shaped partition frames are fixedly provided at the top and bottom of the connecting inclined plate. The two U-shaped partition frames are distributed opposite each other, which facilitates the rapid switching of material flow direction and ensures that residual material does not contaminate new material during material changing.

[0007] Preferably, the transparent material changing cylinder has two discharge ports at the bottom, and the U-shaped dividing frame at the bottom covers the top of one discharge port. A drive cylinder is fixedly provided at one end of the outside of the transparent material changing cylinder to facilitate the purpose of material distribution.

[0008] Preferably, the drive cylinder is equipped with a motor, and the output shaft of the motor passes through one end of the outside of the transparent material changing cylinder and is fixedly connected to one end of the rotating shaft, so as to facilitate the control of the motor to drive the rotating shaft to rotate.

[0009] Preferably, both discharge ports are fixedly provided with discharge hoppers at their bottoms. The bottom ends of the two discharge hoppers are respectively fixed to one side of the top of the mixing cylinder and the residual material collection cylinder. The two discharge hoppers are connected to the interior of the mixing cylinder and the residual material collection cylinder, which facilitates the separate discharge of residual material and new material.

[0010] Preferably, a feed pipe is fixedly provided at the center of the top of the transparent material changing cylinder, and the feed pipe is connected to the inside of the transparent material changing cylinder. The top of the feed pipe is used to connect to the feed inlet of the aggregate scale outlet. A discharge pipe is fixedly provided on one side of the bottom of the mixing cylinder. An electric valve is provided on the discharge pipe. A control panel for controlling the operation of the motor and the electric valve is fixedly provided at the center of the front side of the top of the support platform, which facilitates the control of the operation and closure of the motor and the electric valve.

[0011] Preferably, a cylinder cover is connected to one side of the top of the mixing cylinder by a hinge, and a cylinder door is connected to the front side of the residual material collection cylinder by a hinge, which facilitates the centralized cleaning of residual material inside the residual material collection cylinder. Four evenly distributed support columns are fixed between the bottom of the residual material collection cylinder and the top of the support platform to facilitate the support of this utility model.

[0012] Compared with the prior art, this utility model provides a material changing device for an asphalt concrete mixing plant, which has the following beneficial effects: This invention uses a drive shaft to rotate a connecting inclined plate and a U-shaped separator frame. When the connecting inclined plate rotates to the position of the guide mixing cylinder, the raw material is guided by the connecting inclined plate to a discharge port at the bottom of the transparent material changing cylinder, ensuring that the raw material smoothly enters the mixing cylinder through the unloading hopper. When the connecting inclined plate rotates to the position of the guide residual material collection cylinder, the raw material is guided to another discharge port and enters the residual material collection cylinder through the unloading hopper, thus avoiding residual material from being mixed. After being mixed, the raw material entering the mixing cylinder is discharged through the discharge pipe, and the discharge is controlled by an electric valve. The residual material entering the residual material collection cylinder can be cleaned or processed through the cylinder door. Thus, during material changing, residual old material can be automatically guided into the collection cylinder, effectively preventing the residual mixing of different batches or types of materials in the mixing cylinder and ensuring product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rear view of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the material distribution component structure of this utility model; Figure 4 This is a partial structural diagram of the material distribution component of this utility model.

[0014] In the diagram: 1. Support platform, 2. Mixing cylinder, 3. Residual material collection cylinder, 4. Material distribution assembly, 5. Feed pipe, 6. Discharge pipe, 7. Electric valve, 8. Cylinder cover, 9. Cylinder door, 10. Support column, 11. Control panel; 41 Transparent material changing cylinder, 42 Connecting inclined plate, 43 U-shaped partition frame, 44 Unloading hopper, 45 Rotating shaft, 46 Drive cylinder, 47 Motor. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] like Figure 1-4 As shown, this utility model provides a material changing device for an asphalt concrete mixing plant, including a support platform 1. A mixing cylinder 2 and a residual material collection cylinder 3 are respectively provided on the top two sides of the support platform 1. A feed pipe 5 is fixedly provided at the center of the top of the transparent material changing cylinder 41, and the feed pipe 5 is interconnected with the interior of the transparent material changing cylinder 41. The top end of the feed pipe 5 is used to connect to the feed inlet of the aggregate scale outlet. A discharge pipe 6 is fixedly provided on one side of the bottom of the mixing cylinder 2. An electric valve 7 is provided on the discharge pipe 6. A cylinder cover 8 is hinged to one side of the top of the mixing cylinder 2. A cylinder door 9 is hinged to the front side of the residual material collection cylinder 3 to facilitate the centralized cleaning of residual material inside the residual material collection cylinder 3. Four evenly distributed support columns 10 are fixed between the bottom of the residual material collection cylinder 3 and the top of the support platform 1 to facilitate the support of this utility model.

[0017] like Figure 1-4 As shown, a material distribution component 4 is provided between the top of the mixing cylinder 2 and the residual material collection cylinder 3 to prevent residual material from being left behind and mixed during material replacement. The material distribution component 4 includes a transparent material replacement cylinder 41, which allows operators to visually observe the flow of raw materials and ensures the reliability of the material replacement process. The transparent material replacement cylinder 41 is located between the top of the mixing cylinder 2 and the residual material collection cylinder 3. A rotating shaft 45 is connected to the center of one end of the transparent material replacement cylinder 41 via a bearing. A connecting inclined plate 42 is fixedly provided at one end of the rotating shaft 45, and the connecting inclined plate 42 is located at the center of the transparent material replacement cylinder 41. U-shaped partition frames 43 are fixedly provided at the top and bottom of the connecting inclined plate 42. The two U-shaped partition frames 43 are distributed opposite each other, which facilitates the rapid switching of material flow direction and ensures that residual material does not contaminate new material during material replacement. Two discharge ports are opened at the bottom of the transparent material replacement cylinder 41, and the U-shaped partition frame 43 at the bottom covers the top of one discharge port. A drive cylinder 46 is fixedly provided at one end of the outside of the transparent material replacement cylinder 41 to facilitate the purpose of material distribution.

[0018] The drive cylinder 46 is equipped with a motor 47. The output shaft of the motor 47 passes through one end of the transparent material changing cylinder 41 and is fixedly connected to one end of the rotating shaft 45, which facilitates the control of the motor 47 to drive the rotating shaft 45 to rotate. The bottom of each of the two discharge ports is fixedly equipped with a discharge hopper 44. The bottom ends of the two discharge hoppers 44 are respectively fixedly located on one side of the top of the mixing cylinder 2 and the residual material collection cylinder 3. The two discharge hoppers 44 are connected to the interior of the mixing cylinder 2 and the residual material collection cylinder 3, which facilitates the separate discharge of residual material and new material. The center of the front side of the top of the support platform 1 is fixedly equipped with a control panel 11 for controlling the operation of the motor 47 and the electric valve 7, which facilitates the control of the operation and closure of the motor 47 and the electric valve 7.

[0019] By setting up the material distribution component 4, the asphalt concrete raw material enters the transparent material exchange cylinder 41 from the aggregate scale outlet through the feed pipe 5. The motor 47 is started through the control panel 11, and the motor drives the rotating shaft 45 to rotate, thereby driving the connecting inclined plate 42 and the U-shaped partition frame 43 to rotate together. When the connecting inclined plate 42 rotates to the position of the guide mixing cylinder 2, the raw material is guided by the connecting inclined plate 42 to a discharge port at the bottom of the transparent material exchange cylinder 41. The U-shaped partition frame 43 corresponding to this discharge port is covered on the top of the discharge port to ensure that the raw material smoothly enters the mixing cylinder 2 through the discharge hopper 44. At this time, the other discharge port is closed by another U-shaped partition frame 43 to prevent the raw material from entering the residual material collection cylinder 3. When the connecting inclined plate 42 rotates to the position of the guide residual material collection cylinder 3, the raw material is guided to another discharge port. The U-shaped partition frame 43 corresponding to this discharge port is set on the top of the discharge port. The raw material enters the residual material collection cylinder 3 through the discharge hopper 44. At this time, the discharge port of the mixing cylinder 2 is closed to prevent residual material from mixing into the interior of the mixing cylinder 2. During normal mixing, the connecting inclined plate guides the mixing cylinder 2, allowing the raw materials to enter the mixing cylinder 2 for mixing. When material needs to be changed, the operator switches the motor 47 to rotate via the control panel 11, causing the connecting inclined plate 42 to rotate to the position of the residual material collection cylinder 3. In this way, the residual material is guided into the residual material collection cylinder 3 instead of entering the mixing cylinder 2, thus avoiding residual material from being mixed. The raw materials entering the mixing cylinder 2 are discharged through the discharge pipe 6 after mixing, and the discharge is controlled by the electric valve 7. The residual material entering the residual material collection cylinder 3 can be cleaned or processed through the cylinder door 9. Thus, when changing materials, the residual old material can be automatically guided into the collection cylinder, effectively preventing the residual mixing of different batches or types of materials in the mixing cylinder and ensuring product quality.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A material changing device for an asphalt concrete mixing plant, comprising a support platform (1), characterized in that: The top two sides of the support platform (1) are respectively provided with a mixing cylinder (2) and a residual material collection cylinder (3); A material distribution component (4) is provided between the top of the mixing cylinder (2) and the residual material collection cylinder (3) to prevent residual material from being left behind and mixed during material replacement; The material distribution component (4) includes a transparent material exchange cylinder (41), which is located between the top of the mixing cylinder (2) and the residual material collection cylinder (3). A rotating shaft (45) is connected to the center of one end of the transparent material exchange cylinder (41) through a bearing. A connecting inclined plate (42) is fixedly provided at one end of the rotating shaft (45), and the connecting inclined plate (42) is located at the center of the transparent material exchange cylinder (41). U-shaped partition frames (43) are fixedly provided at the top and bottom of the connecting inclined plate (42), and the two U-shaped partition frames (43) are distributed opposite to each other.

2. The material changing device for an asphalt concrete mixing plant according to claim 1, characterized in that: The transparent material changing cylinder (41) has two discharge ports at the bottom. The U-shaped partition frame (43) at the bottom covers the top of one discharge port. A drive cylinder (46) is fixedly provided at one end of the outside of the transparent material changing cylinder (41).

3. The material changing device for an asphalt concrete mixing plant according to claim 2, characterized in that: The drive cylinder (46) is equipped with a motor (47), and the output shaft of the motor (47) passes through one end of the outside of the transparent material changing cylinder (41) and is fixedly connected to one end of the rotating shaft (45).

4. The material changing device for an asphalt concrete mixing plant according to claim 3, characterized in that: Both discharge ports are fixedly provided with discharge hoppers (44) at the bottom. The bottom ends of the two discharge hoppers (44) are respectively fixed on one side of the top of the mixing cylinder (2) and the residual material collection cylinder (3), and the two discharge hoppers (44) are connected to the interior of the mixing cylinder (2) and the residual material collection cylinder (3).

5. The material changing device for an asphalt concrete mixing plant according to claim 4, characterized in that: The transparent material exchange cylinder (41) is fixedly provided with a feed pipe (5) at the top center, and the feed pipe (5) is connected to the inside of the transparent material exchange cylinder (41). The top of the feed pipe (5) is used to connect to the feed port of the aggregate scale outlet. The bottom side of the mixing cylinder (2) is fixedly provided with a discharge pipe (6). The discharge pipe (6) is provided with an electric valve (7). The front center of the top of the support platform (1) is fixedly provided with a control panel (11) for controlling the motor (47) and the electric valve (7) to work.

6. The material changing device for an asphalt concrete mixing plant according to claim 1, characterized in that: The top side of the mixing cylinder (2) is connected to a cylinder cover (8) by a hinge, and the front side of the residual material collection cylinder (3) is connected to a cylinder door (9) by a hinge. Four evenly distributed support columns (10) are fixed between the bottom of the residual material collection cylinder (3) and the top of the support platform (1).

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