Rock-fill dam transition material preparation system

Abstract

The utility model discloses a rock-fill dam transition material preparation system which comprises a feeding device, a conveying device, a transfer device and a material storage device which are sequentially arranged, and further comprises a controller and a plurality of weighing devices which are arranged on the conveying device at intervals. The feeding device comprises a plurality of vibrating feeders which are respectively used for supplying aggregates with different sizes, the vibrating feeders and the weighing device are correspondingly arranged, the controller is in wireless or wired connection with the weighing device and the vibrating feeders, and the controller is used for controlling the vibrating feeders to feed according to the weight of the weighing device. The device has the advantages that the operation is simple, and transition materials or other mixtures of aggregates with different particle sizes can be prepared.

Description

Technical Field

[0001] The utility model relates to the technical field of transition material preparation devices, in particular to a transition material preparation system for a rockfill dam. Background Art

[0002] Pumped-storage power stations are often located on hard rocky terrain, requiring extensive open-cut and underground excavation. Utilizing local resources for dam construction helps dispose of existing construction waste, conserving resources while also protecting the environment. With the rapid development of pumped-storage power stations, rockfill dams are becoming increasingly common, increasing the demand for transition materials.

[0003] Chinese patent publication number CN 213918987 U discloses a system for preparing fully lightweight aggregate thermal insulation concrete based on the absolute volume method. The system includes a mixing frame, a twin-shaft mixer for mixing fixed in the middle of the mixing frame, and a discharge barrel disposed at the bottom of the twin-shaft mixer; an aggregate feed hopper disposed at the top of the mixing frame, the aggregate outlet of the aggregate feed hopper being located directly above the twin-shaft mixer; a cement supply system disposed directly above the twin-shaft mixer; the aggregate feed hopper being connected to an inclined aggregate conveyor, the bottom end of which is connected to a horizontal conveyor, and a feeding device for supplying ceramsite aggregate in a fixed volume disposed directly above the horizontal conveyor. This system utilizes a hopper with a standard volume capacity for accurate volumetric measurement of ceramsite aggregate during the preparation of concrete containing ceramsite aggregate, ensuring that the ceramsite aggregate meets the overall mix ratio requirements and thereby ensuring the performance of the prepared fully lightweight aggregate thermal insulation concrete. The applicant found that in this technical solution, since a fixed-volume hopper is used to measure aggregates, each hopper has a fixed volume. If it is used to prepare transition materials, since the transition materials include aggregates of various sizes, such as large stones, medium stones, small stones, and sand, and the proportion of each type of aggregate is different, this technical solution cannot continuously configure transition materials with different proportions of aggregates of different particle sizes. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a rockfill dam transition material preparation system which is simple to operate and can configure transition materials of aggregates with different particle sizes.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A system for preparing transition material for a rockfill dam comprises a feeding device, a conveying device, a transfer device, and a storage device arranged in sequence, and further comprises a controller and a weighing device. A plurality of the weighing devices are arranged at intervals on the conveying device. The feeding device comprises a plurality of vibrating feeders for supplying aggregates of different sizes, the vibrating feeders and the weighing devices being arranged correspondingly. The controller is connected to the weighing devices and the vibrating feeders wirelessly or by wire, and is used to control the feeding of the vibrating feeders according to the weight of the weighing devices.

[0007] As a further improvement of the above technical solution:

[0008] The feeding device comprises a feed hopper, and the vibrating feeder is located at an outlet below the feed hopper.

[0009] The conveying device is a conveying belt, and the weighing device is a belt scale.

[0010] The transfer device includes a transfer belt, which is arranged obliquely, and the height of the feed end of the transfer belt is lower than or higher than the height of the discharge end.

[0011] The transfer belt includes a first transfer belt and a second transfer belt arranged in sequence, the feed end height of the first transfer belt is lower than or higher than the discharge end height, the feed end height of the second transfer belt is lower than or higher than the discharge end height, and the discharge end of the first transfer belt is located above or below the feed end of the second transfer belt.

[0012] The first transfer belt has an inclination angle α relative to the horizontal plane, and the first transfer belt has an inclination angle β relative to the horizontal plane, which satisfies -12°≤α≤16° and -12°≤β≤16°.

[0013] The storage device includes a storage hopper and a bracket for supporting the storage hopper, and the discharge end of the transfer belt is connected to the feed end of the storage hopper.

[0014] A rain shelter is provided above the storage device.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The utility model discloses a transition material preparation system for a rockfill dam. The feeding device includes a plurality of vibrating feeders respectively used for supplying aggregates of different sizes. Different vibrating feeders feed aggregates of different sizes. Aggregates of corresponding masses are accurately weighed by a weighing device and a controller to meet the requirements of different proportions of aggregates of different sizes in the transition material. The materials are then fed to a conveying device, a transfer device and a storage device in sequence. Finally, the transition material in the storage device is stored, transferred or used according to actual needs. The operation is simple and the production quality is easy to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the rain shelter at the feeding device of the utility model.

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure at point A.

[0020] The numbers in the figure represent: 1. Feeding device; 11. Vibrating feeder; 12. Feed hopper; 2. Conveying device; 3. Transfer device; 31. First transfer belt; 32. Second transfer belt; 4. Storage device; 41. Storage hopper; 42. Bracket; 5. Weighing device; 6. Awning. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below. Unless otherwise specified, the instruments and materials used in the present invention are commercially available.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0024] In this utility model, unless otherwise specified or limited, the terms "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] like Figures 1 to 3As shown, the rockfill dam transition material preparation system of this embodiment includes a feeding device 1, a conveying device 2, a transfer device 3, and a storage device 4 arranged in sequence, as well as a controller (not shown) and a weighing device 5. Multiple weighing devices 5 are arranged at intervals on the conveying device 2. The feeding device 1 includes multiple vibrating feeders 11 for supplying aggregates of different sizes. The vibrating feeders 11 are arranged corresponding to the weighing devices 5. The controller is connected to the weighing devices 5 and the vibrating feeders 11 wirelessly or by wire. The controller is used to control the feeding of the vibrating feeders 11 based on the weight of the weighing devices 5.

[0026] The present invention discloses a system for preparing transition material for a rockfill dam. The feeding device 1 includes multiple vibrating feeders 11, each for supplying aggregates of different sizes. Different vibrating feeders 11 feed aggregates of different sizes. Aggregates of corresponding masses are accurately weighed by a weighing device 5 and a controller to achieve the desired proportions of aggregates of different sizes in the transition material. The aggregates are then fed sequentially to a conveying device 2, a transfer device 3, and a storage device 4. Finally, the transition material in the storage device 4 is stored, transferred, or used according to actual needs. The system is simple to operate and easy to control production quality. In this embodiment, the aggregates of different sizes in the transition material include large stone (80mm-40mm), medium stone (40mm-20mm), small stone (20mm-5mm), and sand (≤5mm). In other embodiments, the system can also be used to prepare other similar mixtures.

[0027] The feeding device 1 includes a feed hopper 12, and a vibrating feeder 11 is located at an outlet below the feed hopper 12. In this embodiment, the vibrating feeder 11 is an automatic frequency modulation vibrating feeder.

[0028] The conveying device 2 is a conveying belt, and the weighing device 5 is a belt scale. In this embodiment, the belt scale is an electronic belt scale with independent suspension and continuous measurement.

[0029] Transfer device 3 includes a transfer belt, which is tilted so that the feed end is lower than the discharge end. In this embodiment, because a transfer vehicle will later be used to transfer the transitional material from storage device 4, and space is limited, the tilted transfer belt allows for the placement of other items beneath it, improving space utilization while also reducing the difficulty of transfer by the transfer vehicle. In other embodiments, depending on actual operating conditions, similar technical effects can be achieved by placing the feed end of the transfer belt higher than the discharge end.

[0030] The transfer belts include a first transfer belt 31 and a second transfer belt 32, which are arranged sequentially. The feed end of the first transfer belt 31 is lower than the discharge end, while the feed end of the second transfer belt 32 is lower than the discharge end. The discharge end of the first transfer belt 31 is located above the feed end of the second transfer belt 32. Material from the first transfer belt 31 is transported to the second transfer belt 32 for further transfer. The provision of two first and second transfer belts 31, 32 allows the transfer device 3 of the same length to have a lower final discharge port height, compared to using only one transfer belt. This reduces the engineering complexity of installing the storage device 4. In other embodiments, depending on actual operating conditions, the feed end of the first transfer belt 31 may be higher than the discharge end, the feed end of the second transfer belt 32 may be higher than the discharge end, and the discharge end of the first transfer belt 31 may be located below the feed end of the second transfer belt 32. Similar technical effects can also be achieved.

[0031] The first transfer belt 31 has an inclination angle α relative to the horizontal plane, and the first transfer belt 31 has an inclination angle β relative to the horizontal plane, which satisfies -12°≤α≤16° and -12°≤β≤16°. This arrangement is convenient for preventing the aggregate from rolling down from the transfer belt to the feed end due to gravity during transfer. Preferably, in this embodiment, α=β=14°

[0032] The storage device 4 includes a storage hopper 41 and a bracket 42 for supporting the storage hopper 41. The discharge end of the transfer belt is connected to the feed end of the storage hopper 41. In this embodiment, a storage door is provided below the storage hopper 41. When unloading is required, the storage door is opened to complete the unloading. The storage door is controlled by an electric control switch, which is connected to the controller.

[0033] A rain shelter 6 is set up above the storage device 4, and a ladder is provided on the side of the storage device 4 for maintenance. In the present embodiment, a rain shelter 6 is also set up above the feeding device 1, and a ladder is provided for maintenance.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the content of the present invention and are based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A system for preparing transition material for a rockfill dam, comprising a feeding device (1), a conveying device (2), a transfer device (3) and a storage device (4) arranged in sequence, characterized in that: The invention also includes a controller and a weighing device (5), wherein a plurality of the weighing devices (5) are arranged at intervals on the conveying device (2), and the feeding device (1) includes a plurality of vibrating feeders (11) respectively used for supplying aggregates of different sizes, wherein the vibrating feeders (11) are arranged corresponding to the weighing devices (5), and the controller is connected to the weighing devices (5) and the vibrating feeders (11) wirelessly or by wire, and the controller is used to control the feeding of the vibrating feeders (11) according to the weight of the weighing devices (5).

2. The rockfill dam transition material preparation system according to claim 1, characterized in that: The feeding device (1) comprises a feeding hopper (12), and the vibrating feeder (11) is located at an outlet below the feeding hopper (12).

3. The rockfill dam transition material preparation system according to claim 1, characterized in that: The conveying device (2) is a conveying belt, and the weighing device (5) is a belt scale.

4. The system for preparing transition material for rockfill dam according to any one of claims 1 to 3, characterized in that: The transfer device (3) comprises a transfer belt, which is arranged at an angle, and the height of the feed end of the transfer belt is lower than or higher than the height of the discharge end.

5. The rockfill dam transition material preparation system according to claim 4, characterized in that: The transfer belt comprises a first transfer belt (31) and a second transfer belt (32) which are arranged in sequence, wherein the height of the feed end of the first transfer belt (31) is lower than or higher than the height of the discharge end, the height of the feed end of the second transfer belt (32) is lower than or higher than the height of the discharge end, and the discharge end of the first transfer belt (31) is located above or below the feed end of the second transfer belt (32).

6. The rockfill dam transition material preparation system according to claim 5, characterized in that: The first transfer belt (31) has an inclination angle α relative to the horizontal plane, and the first transfer belt (31) has an inclination angle β relative to the horizontal plane, which satisfies -12°≤α≤16° and -12°≤β≤16°.

7. The rockfill dam transition material preparation system according to claim 4, characterized in that: The storage device (4) comprises a storage hopper (41) and a bracket (42) for supporting the storage hopper (41), and the discharge end of the transfer belt is connected to the feed end of the storage hopper (41).

8. The rockfill dam transition material preparation system according to claim 7, characterized in that: A rain shelter (6) is provided above the storage device (4).

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