Material conveying system and mixing plant

Abstract

The utility model relates to the field of constructional engineering machinery, and discloses a material conveying system and a mixing plant, the material conveying system comprises an elevator, a buffer container and a feeding conveying device, the elevator comprises a feeding position, a discharging position and a lifting container capable of moving between the feeding position and the discharging position; the buffer container is provided with a buffer feed port and a buffer discharge port, and the buffer discharge port is used for feeding materials to the lifting container at the feeding position and is provided with an openable discharge door; the feeding conveying device is used for feeding materials to the temporary storage feeding port. According to the material conveying system and the mixing plant, the material conveying efficiency can be improved, and therefore the production efficiency of the mixing plant is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of construction engineering machinery, and specifically relates to a material conveying system and a mixing station. Background Art

[0002] In existing concrete mixing plants, materials are transported to a bucket via a belt conveyor, which then feeds the material to the main concrete mixing station for mixing. During this process, the belt conveyor must pause to prevent material from spilling. Once the bucket has been emptied and returned to its original position, the belt conveyor resumes operation for the next round of feeding. This interruption in the entire material conveying line results in lower production efficiency in the concrete mixing station. Utility Model Content

[0003] In response to at least one of the above-mentioned defects or shortcomings of the prior art, the present application provides a material conveying system and a mixing station, which are conducive to improving the material conveying efficiency and improving the production efficiency of the mixing station.

[0004] In order to achieve the above objectives, the present application provides a material conveying system, comprising:

[0005] An elevator comprising an upper material position and a lower material position and a lifting container capable of moving between the upper material position and the lower material position;

[0006] a buffer container, provided with a buffer feed port and a buffer discharge port, wherein the buffer discharge port is used to feed materials into the lifting container at the loading position and is provided with an openable and closable discharge door; and

[0007] A feeding and conveying device is used to feed materials into the buffer feed port.

[0008] In some embodiments, the material conveying system includes a weighing device for detecting the weight of the buffer container.

[0009] In some embodiments, the material conveying system includes a container holder, the weighing device includes a plurality of weighing sensors evenly distributed on the container holder, and the buffer container is placed on the plurality of weighing sensors.

[0010] In some embodiments, a plurality of container support plates corresponding to the plurality of weighing sensors are provided on the peripheral wall of the cache container, and a connecting component for preventing jump and limiting the cache container is connected between the container support plates and the container bracket.

[0011] In some embodiments, the container support plate is provided with a support plate through-hole, and the connecting assembly includes a connecting rod arranged vertically and formed with a peripheral wall external thread, and an upper nut and a lower nut respectively matched with the peripheral wall external thread, the bottom end of the connecting rod is inserted into the container bracket and the top end is connected to the support plate through-hole, and the upper nut and the lower nut jointly clamp the container support plate.

[0012] In some embodiments, the material conveying system includes a vibrator disposed in the buffer container and configured to vibrate the material.

[0013] In some embodiments, the elevator is a bucket elevator, which includes an elevator track and an elevator bucket serving as the elevator container and traveling on the elevator track.

[0014] In some embodiments, the buffer container is a hopper.

[0015] In some embodiments, the feeding conveying device is a feeding belt conveyor.

[0016] A second aspect of the present application provides a mixing station, comprising the above-mentioned material conveying system.

[0017] Through the above technical solution, it can be seen that the buffer container in the material conveying system is provided with an openable and closable unloading door. In the process of conveying materials, when the emptied lifting container moves to the loading position, the unloading door can be switched to the open state, so that the material in the buffer container can fall into the lifting container until the lifting container is filled, and then the unloading door is switched to the closed state. After the lifting container moves to the unloading position for unloading, it returns to the loading position and then switches the unloading door to the open state again. During the process, the material can be continuously conveyed to the buffer container through the feeding and conveying device for caching. Even when the lifting container moves out of the loading position for unloading, there is no need to stop the material conveying, thereby improving the material conveying efficiency. When the material conveying system is applied to the mixing station, the production efficiency of the mixing station can be improved.

[0018] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without inventive work. In the drawings:

[0020] Figure 1This is a schematic diagram of a material conveying system in a specific embodiment of the present application;

[0021] Figure 2 for Figure 1 Schematic diagram of the placement status of buffer containers in a material conveying system.

[0022] Description of Reference Numerals

[0023] 1 elevator 2 cache container

[0024] 3 Feeding and conveying device 4 Weighing device

[0025] 5 Container support 6 Connection assembly

[0026] 7 Vibrator 8 Hopper

[0027] 9 Feeding Conveyor 101 Lifting Container

[0028] 102 Lifting bucket 103 Lifting track

[0029] 201 Discharge door 202 Container support plate

[0030] 401 weighing sensor 601 connecting rod

[0031] 602 Upper nut 603 Lower nut DETAILED DESCRIPTION

[0032] The following describes the specific embodiments of the present application in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and are not intended to limit the present application.

[0033] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0034] like Figure 1 and Figure 2 As shown, the first exemplary embodiment of the present application provides a material conveying system, which mainly includes an elevator 1, a buffer container 2 and a feeding and conveying device 3, wherein the elevator 1 includes an upper material position and a lower material position and a lifting container 101 that can move between the upper material position and the lower material position; the buffer container 2 is provided with a buffer feed port and a buffer discharge port, wherein the buffer discharge port can be connected to the lifting feed position of the lifting container 101 at the upper material position, so that the buffer container 2 can feed materials from the buffer discharge port to the lifting container 101, and the cache discharge port is also provided with an openable and closable discharge door 201, by opening and closing the discharge door 201, the cache container 2 can be controlled to discharge or store materials; the feeding and conveying device 3 is used to feed materials to the cache feed port, so that materials can be cached in the cache container 2.

[0035] It can be seen that in the process of conveying materials, when the empty lifting container 101 moves to the loading position, the discharge door 201 can be switched to the open state, so that the material in the buffer container 2 can fall into the lifting container 101 until the lifting container 101 is filled, and then the discharge door 201 is switched to the closed state. After the lifting container 101 moves to the unloading position for unloading, it returns to the loading position and then switches the discharge door 201 to the open state again. During the process, the material can be continuously conveyed to the buffer container 2 for caching through the feeding and conveying device 3. Even when the lifting container 101 moves out of the loading position for unloading, there is no need to stop the material conveying, thereby improving the material conveying efficiency. When the material conveying system is applied to the mixing station, the conveying efficiency of materials such as aggregates can be improved, thereby improving the production efficiency of the mixing station.

[0036] In one embodiment, the material conveying system includes a weighing device 4 for detecting the weight of the buffer container 2, so that quantitative feeding can be achieved. Specifically, when the material is conveyed to the buffer container 2 by the feeding and conveying device 3, when the weighing device 4 measures that the weight of the buffer container 2 reaches a preset weight, the feeding and conveying device 3 can be controlled to stop feeding, and then the discharge door 201 is controlled to switch to an open state, and all the materials of the preset weight are put into the lifting container 101, so that the lifting container 101 can transport the materials of the preset weight from the upper material position to the lower material position for delivery. After all the materials are put into the lifting container 101, the discharge door 201 is controlled to switch to a closed state, and then the feeding and conveying device 3 is reopened to feed until the weighing device 4 measures that the weight of the buffer container 2 reaches a preset weight. Repeating the above operation can achieve quantitative feeding. It can be seen that during the period when the lifting container 101 transports the material from the upper material position to the lower material position for delivery, the material can be quantitatively cached in the cache container 2 to wait for the next lifting transportation. When the empty lifting container 101 returns to the upper material position, the material cached in the cache container 2 can be delivered to the lifting container 101, thereby achieving continuous feeding and improving material transportation efficiency.

[0037] In one embodiment, referring to Figure 2 The material conveying system includes a container holder 5, and the weighing device 4 includes a plurality of weighing sensors 401, such as pressure sensors, strain gauge sensors, etc., evenly distributed on the container holder 5. The buffer container 2 is placed on the plurality of weighing sensors 401 to ensure that the plurality of weighing sensors 401 can evenly share the total weight of the buffer container 2. Connecting the output signals of the plurality of weighing sensors 401 to a data acquisition system and using an amplifying circuit and a filtering circuit in combination can improve the accuracy and stability of the signal. Using a controller or a computer to process the signals output by the plurality of weighing sensors 401 can calculate the overall weight through algorithms such as weighted averaging and least squares method to eliminate possible errors of individual weighing sensors 401 and improve the accuracy of weight detection.

[0038] In the process of materials falling from the feeding and conveying device 3 to the buffer container 2, a certain impact will be generated on the buffer container 2, which may easily cause the buffer container 2 to jump. In order to avoid accidents such as the buffer container 2 tipping over due to jumping, the peripheral wall of the buffer container 2 is provided with a plurality of container support plates 202 respectively corresponding to the plurality of weighing sensors 401, and a connecting component 6 for preventing the cache container 2 from jumping and limiting the position is connected between the container support plate 202 and the container bracket 5.

[0039] Specifically, refer to Figure 2 The container support plate 202 is provided with support plate through-holes. The connecting assembly 6 includes a vertically arranged connecting rod 601 with a peripheral wall external thread, and an upper nut 602 and a lower nut 603 respectively matched with the peripheral wall external thread. The bottom end of the connecting rod 601 is inserted into the container support 5, and the top end is inserted into the support plate through-holes. The upper nut 602 and the lower nut 603 jointly clamp the container support plate 202. Therefore, under the joint restraint of the upper nut 602 and the lower nut 603, the buffer container 2 can be stably placed on the container support 5.

[0040] In an optional or preferred embodiment, Figure 1 and Figure 2 As shown, the material conveying system includes a vibrator 7 provided in the buffer container 2 and used to vibrate the material. Thus, before unloading, the material in the buffer container 2 is vibrated to a loose state by the vibrator 7, so that the material can smoothly fall into the lifting container 101 under the action of its own gravity.

[0041] In the embodiment of the present application, the elevator 1 may be a bucket elevator 1. Accordingly, Figure 1 As shown, the elevator 1 includes a lifting track 103 and a lifting bucket 102 that serves as a lifting container 101 and travels on the lifting track 103. The lifting track 103 is provided with the above-mentioned upper and lower material positions. As shown in the figure, the upper material position is located below the lower material position. The material moves from the upper material position to the lower material position through the lifting bucket 102, thereby achieving height lifting.

[0042] Optionally, the buffer container 2 is a feeding hopper 8 and the feeding conveying device 3 is a feeding belt conveyor 9 .

[0043] In addition, in the illustrated embodiment, the discharge door 201 can be driven to open and close by an electric motor, thereby realizing automatic discharge of the buffer container 2.

[0044] A second exemplary embodiment of the present application provides a mixing station comprising the aforementioned material conveying system and a mixing device. The mixing device is aligned with the discharge position of the elevator 1, enabling the lifting container 101 to be moved to the discharge position and to release material into the mixing device. Furthermore, the mixing station also possesses all the technical benefits of the aforementioned material conveying system, which will not be further described here.

[0045] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0046] In this application, unless otherwise specified or limited, the terms "installed," "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, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0048] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A material conveying system, characterized in that: include: An elevator (1) comprises an upper material position and a lower material position and a lifting container (101) capable of moving between the upper material position and the lower material position; a buffer container (2) provided with a buffer feed port and a buffer discharge port, the buffer discharge port being used to feed materials into the lifting container (101) at the loading position and provided with an openable and closable discharge door (201); and A feeding and conveying device (3) is used for feeding materials into the buffer feeding port.

2. The material conveying system according to claim 1, characterized in that: The material conveying system comprises a weighing device (4) for detecting the weight of the buffer container (2).

3. The material conveying system according to claim 2, characterized in that: The material conveying system includes a container support (5), the weighing device (4) includes a plurality of weighing sensors (401) evenly distributed on the container support (5), and the buffer container (2) is placed on the plurality of weighing sensors (401).

4. The material conveying system according to claim 3, characterized in that: A plurality of container support plates (202) respectively corresponding to the plurality of weighing sensors (401) are provided on the peripheral wall of the cache container (2), and a connection component (6) for preventing jump and limiting the cache container (2) is connected between the container support plates (202) and the container bracket (5).

5. The material conveying system according to claim 4, characterized in that: The container support plate (202) is provided with a support plate through-hole, and the connecting assembly (6) comprises a connecting rod (601) arranged vertically and formed with a peripheral wall external thread, and an upper nut (602) and a lower nut (603) respectively matched with the peripheral wall external thread, the bottom end of the connecting rod (601) is inserted into the container bracket (5) and the top end is connected to the support plate through-hole, and the upper nut (602) and the lower nut (603) jointly clamp the container support plate (202).

6. The material conveying system according to claim 1, characterized in that: The material conveying system comprises a vibrator (7) arranged in the buffer container (2) and used for vibrating the material.

7. The material conveying system according to any one of claims 1 to 6, characterized in that: The elevator (1) is a bucket elevator (1), and the elevator (1) comprises an elevator track (103) and an elevator bucket (102) as the elevator container (101) running on the elevator track (103).

8. The material conveying system according to any one of claims 1 to 6, characterized in that: The buffer container (2) is a feeding hopper (8).

9. The material conveying system according to any one of claims 1 to 6, characterized in that: The feeding and conveying device (3) is a feeding belt conveyor (9).

10. A mixing station, characterized in that: Comprising a material conveying system according to any one of claims 1 to 9.

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