Recycled powder recycling device of asphalt mixing station

Abstract

The utility model discloses an asphalt mixing station recovered powder recycling device, which comprises a recovery auger, a powder elevator, a collecting tank, a material taking auger and a mixing cylinder, a discharge valve is arranged at the bottom of the collecting tank, and a trigger device for controlling the discharge valve to be opened and closed is arranged in the collecting tank. The discharge valve is arranged at the bottom of the collecting tank and controlled by the trigger device in the collecting tank, and the trigger device is triggered when recycled powder reaches a certain stock, so that the recycled powder at the bottom of the collecting tank is discharged, the situation that viscosity is increased due to long-term deposition of the recycled powder at the bottom of the collecting tank is avoided, and it is guaranteed that the recycled powder is taken out smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt recovery powder discharge, in particular to an asphalt mixing station recovery powder recycling device. Background Art

[0002] During the production process of asphalt mixture, a large amount of dust will be collected due to the heating and dust removal of aggregates. These dusts are mainly a mixture of mineral powder and a small amount of impurities, which is called recycled powder. If the recycled powder is discharged as solid waste, on the one hand, it pollutes the environment and does not meet environmental protection requirements, and on the other hand, it will increase material loss and cause economic waste. At present, the recycled powder is collected by collecting tanks. In the production process of SMA and AC-13 asphalt mixtures, the required proportion of fine materials is relatively high, and the recycled powder can be directly used. However, the collection and use of recycled powder are not carried out simultaneously, so the collection tank is often filled with recycled powder. At present, an overflow port is set on the collection tank. When the collection tank is full of recycled powder, the newly collected recycled powder will flow out at the overflow port. This collection tank has the following disadvantages: the overflow port is set on the upper side of the collection tank, so the excess overflowed recycled powder is newly collected. If the recycled powder deposited at the bottom of the collection tank is accumulated for a period of time without being taken out, the humidity will become high and the viscosity will become high. When the recycled powder is used, it will be difficult to take it out, increasing the resistance of the auger operation. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide an asphalt mixing station powder recycling device, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an asphalt mixing station powder recycling device, including a recovery auger, a powder elevator, a collecting tank, a material taking auger and a mixing cylinder, a discharge valve is arranged at the bottom of the collecting tank, and a trigger device for controlling the switch of the discharge valve is arranged in the collecting tank.

[0005] Furthermore, the trigger device includes a contact switch and a partition, the partition is telescopically arranged on the inner wall of the collection tank, and the contact switch is arranged between the partition and the collection tank.

[0006] Furthermore, the partition is hingedly arranged on the inner wall of the collection tank.

[0007] Furthermore, a receiving groove is provided on the inner wall of the collection tank in cooperation with the partition, and the partition is hingedly arranged in the receiving groove.

[0008] Furthermore, baffles are provided on both sides of the partition, and side grooves are provided on both sides of the storage groove to cooperate with the baffles.

[0009] Furthermore, a material leakage port is provided on the collecting tank at the bottom of the contact switch.

[0010] Furthermore, the material taking auger is arranged at the bottom of the collecting tank, and the material taking auger is located on the upper side of the discharge valve.

[0011] The above technical scheme of the utility model has the following beneficial effects: the utility model arranges a discharge valve at the bottom of the collecting tank, which is controlled by a trigger device in the collecting tank. When the recovered powder reaches a certain stock, the trigger device is triggered to discharge the recovered powder at the bottom of the collecting tank, thereby avoiding long-term deposition of recovered powder at the bottom of the collecting tank and increasing the viscosity, thereby ensuring the smooth removal of the recovered powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0013] Figure 2 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0014] The following is a detailed description of the preferred implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0015] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0016] like Figure 1-2 As shown, an asphalt mixing station powder recycling device of this embodiment includes a recovery auger 1, a powder elevator 2, a collection tank 3, a material taking auger 4 and a mixing cylinder 5, a discharge valve 6 is provided at the bottom of the collection tank 3, and a trigger device 7 for controlling the opening and closing of the discharge valve 6 is provided in the collection tank 3;

[0017] The recovery auger 1 sends the recovered powder to the powder elevator 2, and then to the upper side of the collecting tank 3 through the powder elevator 2. The recovered powder falls into the collecting tank 3 for storage and accumulation. When the accumulation height reaches the trigger device, the trigger device 7 will control the discharge valve 6 to open, and the old recovered powder accumulated at the bottom of the collecting tank 3 will be discharged. After the recovered powder is discharged, it needs to be stirred with water before being discharged to avoid the recovered powder from spreading outward and polluting the environment. When the height of the recovered powder in the collecting tank 3 is lower than the trigger device 7, the discharge valve 6 is closed to ensure the normal storage of the recovered powder in the collecting tank 3. When discharging the recovered powder, the previously deposited recovered powder can be discharged first, thereby avoiding the long-term deposition of recovered powder at the bottom of the collecting tank 3 and increasing the viscosity, and ensuring the smooth removal of the recovered powder.

[0018] Preferably, the trigger device 7 includes a contact switch 71 and a partition 72. The partition 72 is retractably arranged on the inner wall of the collection tank 3. The contact switch 71 is arranged between the partition 72 and the collection tank 3. The contact switch 71 is a switch for switching the circuit of the discharge valve 6. When the recovered powder exceeds the partition 72 upward, the recovered powder will squeeze the partition 72, so that the partition 72 is close to the inner wall of the collection tank 3 until the partition 72 contacts the contact switch 71, triggering the contact switch 71 to realize the opening of the discharge valve 6.

[0019] Preferably, the partition 72 is hingedly arranged on the inner wall of the collection tank 3, and the bottom of the partition 72 is hingedly connected to the inner wall of the collection tank 3. In a natural state, the partition 72 sags away from the contact switch 71 due to gravity;

[0020] Preferably, a receiving groove 73 is provided on the inner wall of the collecting tank 3 to cooperate with the partition 72, and the partition 72 is hingedly arranged in the receiving groove 73. The inner wall of the receiving groove 73 can be set as an inclined surface to ensure that the partition 72 rotates outward and hangs down in a natural state without being attached to the receiving groove 73;

[0021] Preferably, baffles 74 are provided on both sides of the partition 72, and side grooves are provided on both sides of the storage groove 73 to cooperate with the baffles 74. The baffles 74 can block the recycled powder to prevent the recycled powder from entering between the partition 72 and the collection tank 3 and blocking the partition 72 from rotating toward one side of the collection tank 3; when the partition 72 rotates, the baffle 74 can rotate in the side groove;

[0022] Preferably, a leakage port 75 is provided on the collecting tank 3 at the bottom of the contact switch 71, and the powder scattered in the recovered powder can float into between the partition 72 and the collecting tank 3, and the powder accumulated between the partition 72 and the collecting tank 3 can leak out at the leakage port 75, thereby ensuring the normal rotation of the partition 72;

[0023] Preferably, the material taking auger 4 is arranged at the bottom of the collecting tank 3, and the material taking auger 4 is located on the upper side of the discharge valve 6. When in use, the material taking auger 4 can take out the recovered powder in the collecting tank 3 and send it into the mixing tank 5 for stirring.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An asphalt mixing station powder recycling device, comprising a recovery auger, a powder elevator, a collection tank, a material taking auger and a mixing cylinder, characterized in that: A discharge valve is arranged at the bottom of the collecting tank, and a trigger device for controlling the switch of the discharge valve is arranged in the collecting tank.

2. The asphalt mixing station recycled powder recycling device according to claim 1, characterized in that: The trigger device comprises a contact switch and a partition, wherein the partition is telescopically arranged on the inner wall of the collection tank, and the contact switch is arranged between the partition and the collection tank.

3. The asphalt mixing station recycled powder recycling device according to claim 2, characterized in that: The partition is hingedly arranged on the inner wall of the collection tank.

4. The asphalt mixing station recycled powder recycling device according to claim 3, characterized in that: A receiving groove is provided on the inner wall of the collection tank in cooperation with the partition plate, and the partition plate is hingedly arranged in the receiving groove.

5. The asphalt mixing station recycled powder recycling device according to claim 4, characterized in that: Baffles are arranged on both sides of the partition, and side grooves are arranged on both sides of the storage groove to match the baffles.

6. The asphalt mixing station recycled powder recycling device according to claim 2, characterized in that: The collecting tank is provided with a material leakage port at the bottom of the contact switch.

7. The asphalt mixing station recycled powder recycling device according to claim 1, characterized in that: The material taking auger is arranged at the bottom of the collecting tank, and the material taking auger is located on the upper side of the discharge valve.

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