Concrete mixing plant
By setting up first and second dust collection ports in the concrete mixing plant and controlling the opening and closing of the dust collection ports through valves, the problem of poor dust collection effect of the mixing host is solved, and clear visibility and automated control of the inside of the mixing host are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN ZOOMLION CONCRETE MASCH STATION EQUIP CO LTD
- Filing Date
- 2025-02-27
- Publication Date
- 2026-05-19
AI Technical Summary
In existing concrete mixing plants, the dust collectors have poor dust collection efficiency for the mixing host, resulting in the inability to achieve clear internal visibility of the mixing host during the concrete mixing process.
In a concrete mixing plant, the dust collector is equipped with a first dust suction port connected to the intermediate aggregate bin and a second dust suction port connected to the top of the mixing host. The opening and closing of the dust suction ports are controlled by a first valve to suction dust from the intermediate aggregate bin and the mixing host respectively, thereby improving the dust collection effect.
It effectively improves the dust collection efficiency of the mixing host, enables clear visibility of the inside of the mixing host, and enhances the automation level of the mixing plant and the long-term reliability of the dust collector.
Smart Images
Figure CN224255715U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of engineering machinery, specifically, it relates to a concrete mixing plant. Background Technology
[0002] In existing concrete mixing plants, dust collectors and mixing monitoring devices are usually installed. The dust collector is used to collect dust from the mixing host and the intermediate aggregate bins. The mixing monitoring device is used to monitor the mixing status of the concrete inside the mixing host during the mixing process. The clarity of the monitoring screen mainly depends on the dust collection effect of the dust collector.
[0003] The current dust collector is connected to the mixing host and the aggregate intermediate silo through a dust collection pipe. During the dust collection operation, the dust collector simultaneously collects dust from the mixing host and the aggregate intermediate silo. As a result, the dust collection effect on the mixing host is poor, and the interior cannot be clearly seen during the mixing of concrete by the mixing host. Utility Model Content
[0004] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides a concrete mixing plant that can effectively improve the dust collection effect of the dust collector on the mixing host and make the interior of the mixing host clearly visible.
[0005] To achieve the above objectives, this utility model provides a concrete mixing plant, comprising:
[0006] Mixing unit;
[0007] Aggregate intermediate silo;
[0008] The dust collector has a first dust inlet and a second dust inlet. The first dust inlet is connected to the interior of the aggregate intermediate silo, and the second dust inlet is connected to the top of the mixing host.
[0009] The first valve is located at the first dust inlet.
[0010] Optionally, the aggregate intermediate silo includes an upper silo and a lower silo that are interconnected, and the dust collector is integrated inside the upper silo of the aggregate intermediate silo.
[0011] Optionally, the second suction port is connected to the top of the mixing host via the first suction pipe.
[0012] Optionally, the first dust suction port is arranged directly opposite the feed port of the aggregate intermediate silo.
[0013] Optionally, the dust collector is a bag filter and also has a discharge port located at the bottom, which is directly connected to the lower internal chamber of the aggregate intermediate silo. The concrete mixing plant also includes a second valve, which is located at the discharge port.
[0014] Optionally, the dust collector and the aggregate intermediate silo share a common intermediate wall, and both the first dust suction port and the discharge port are formed on the intermediate wall.
[0015] Optionally, the concrete mixing plant further includes a third valve, and the top of the mixing host is provided with an air inlet communicating with the outside, and the third valve is located at the air inlet.
[0016] Optionally, the concrete mixing plant further includes a camera device, which is located outside the mixing host and aligned with the air inlet.
[0017] Optionally, the concrete mixing plant further includes a controller, which is connected to the first valve signal and is used to control the first valve to close or open according to the operating status of the concrete mixing plant.
[0018] Optionally, the concrete mixing plant also includes a powder scale, the top of which is connected to the second dust suction port.
[0019] Through the above technical solution, in the concrete mixing plant of this utility model, the dust collector has a first dust suction port and a second dust suction port. The first dust suction port is connected to the interior of the aggregate intermediate silo, and the second dust suction port is connected to the top of the mixing host. A first valve is provided at the first dust suction port to control the opening or closing of the first dust suction port. With this configuration, when the aggregate is metered and prepared in the concrete mixing plant and transported to the aggregate intermediate silo by the belt conveyor, the first valve is opened, allowing the dust collector to suction dust from the aggregate intermediate silo through the first dust suction port. When the concrete mixing plant is feeding or mixing, the first valve is closed, allowing the dust collector to concentrate on suctioning dust from the mixing host through the second dust suction port. In this way, the dust collection effect of the mixing host can be effectively improved, and the interior of the mixing host can be clearly seen.
[0020] Other features and advantages of this invention will be described in detail in the following detailed embodiments section. Attached Figure Description
[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0022] Figure 1 This is a structural schematic diagram of a concrete mixing plant in one embodiment of the present invention;
[0023] Figure 2 for Figure 1 A structural diagram of a concrete mixing plant during the metering and material preparation process.
[0024] Figure 3 for Figure 1 A structural diagram of a concrete mixing plant during material feeding;
[0025] Figure 4 for Figure 1 A schematic diagram of the structure of a concrete mixing plant during the mixing process;
[0026] Figure 5 for Figure 1 A schematic diagram of the structure of a concrete mixing plant during unloading.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Mixing host 5. Second valve
[0029] 2. Aggregate intermediate silo 6. Third valve
[0030] 3. Dust collector; 7. Camera device
[0031] 4 First valve 8 Powder scale Detailed Implementation
[0032] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0033] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0034] In this utility model, unless otherwise stated, directional terms such as "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. The directional terms "inner" and "outer" refer to the inside and outside of the outline of each component itself.
[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0036] An exemplary embodiment of this utility model provides a concrete mixing plant, as shown in the attached figure. Figure 1 To be continued Figure 5 As shown, a concrete mixing plant includes:
[0037] Mixing unit 1;
[0038] Aggregate intermediate silo 2;
[0039] The dust collector 3 has a first dust suction port and a second dust suction port. The first dust suction port is connected to the interior of the aggregate intermediate silo 2, and the second dust suction port is connected to the top of the mixing host 1.
[0040] The first valve 4 is located at the first dust inlet.
[0041] Understandably, the operation of a concrete mixing plant is mainly divided into metering and preparation, feeding, mixing, and unloading. During metering and preparation, powder, aggregate, and other materials are measured. The aggregate is conveyed to the aggregate intermediate silo 2 via a belt conveyor. During feeding, the aggregate intermediate silo 2, powder scale, etc., are fed into the mixing host 1. During mixing, after the feeding is completed, the mixing host 1 mixes the materials. During unloading, the mixing host 1 unloads the concrete after mixing it. Metering and preparation and unloading are usually carried out simultaneously.
[0042] In the concrete mixing plant of this embodiment, the dust collector 3 has a first dust suction port and a second dust suction port. The first dust suction port is connected to the interior of the aggregate intermediate silo 2, and the second dust suction port is connected to the top of the mixing host 1. A first valve 4 is provided at the first dust suction port. The first valve 4 is used to control the opening or closing of the first dust suction port. With this configuration, when the concrete mixing plant is metering and preparing materials, the first valve 4 is opened when the aggregate is transported to the aggregate intermediate silo 2 by the belt conveyor, so that the dust collector 3 can suck dust from the aggregate intermediate silo 2 through the first dust suction port. When the concrete mixing plant is feeding or mixing, the first valve 4 is closed, so that the dust collector can concentrate on sucking dust from the mixing host through the second dust suction port. In this way, the dust collection effect of the mixing host can be effectively improved, and the interior of the mixing host can be clearly seen.
[0043] In one optional embodiment, the concrete batching plant further includes a controller connected to the first valve 4 via a signal connection. The controller is used to control the first valve 4 to close or open according to the operating status of the concrete batching plant. This effectively improves the automation level of the concrete batching plant, enabling the first valve 4 to adaptively open or close according to the operating status of the concrete batching plant.
[0044] In one optional embodiment, the first valve 4 is a butterfly valve. Specifically, the first valve 4 can be a pneumatic butterfly valve, an electrically driven butterfly valve, etc. Of course, in some other embodiments, the first valve 4 can also be an electric gate or other valve used to control the opening and closing of the dust suction port.
[0045] In one optional embodiment, the aggregate intermediate silo 2 includes an upper silo and a lower silo that are interconnected, and the dust collector 3 is integrated inside the upper silo of the aggregate intermediate silo 2.
[0046] Compared with the separate dust collector in the prior art, the dust collector 3 in this embodiment is integrated into the upper silo of the aggregate intermediate silo 2. That is, the dust collector 3 and the aggregate intermediate silo 2 are an integral structure. This arrangement can reduce the space occupied by the dust collector 3. While ensuring the volume of the aggregate intermediate silo 2, the empty space at the top of the aggregate intermediate silo 2 can be used reasonably. This can avoid the dust collector 3 occupying the space between devices such as powder scales and water scales, so that there is sufficient space between the devices in the concrete mixing plant for maintenance, and at the same time, the overall cost can be reduced.
[0047] Specifically, the dust collector 3 is a bag filter, including a fan and filter bags. The fan is located at the top of the dust collector 3 and aligned with the air outlet at the top of the dust collector 3. The fan is used to extract the gas inside the dust collector 3 to the outside. The filter bags are used to filter the dust in the airflow flowing through the dust collector 3. It should be noted that the specific structure and working principle of the bag filter are well known to those skilled in the art, and therefore will not be described in detail here. The dust collector 3 can be installed as a whole in the empty space of the upper chamber of the aggregate intermediate silo 2. The air outlet and the second dust suction port can be extended to the outside of the aggregate intermediate silo 2 through pipes. Alternatively, the dust collector 3 can be installed at the top of the aggregate intermediate silo 2 and share a common intermediate wall with the aggregate intermediate silo 2, with the air outlet and the second dust suction port directly exposed on the outside.
[0048] Furthermore, the second suction port is connected to the top of the mixing host 1 through the first suction pipe.
[0049] In one alternative embodiment, the first dust suction port is arranged directly opposite the feed port of the aggregate intermediate silo 2.
[0050] Understandably, during the metering and preparation of materials, the aggregates are transported to the intermediate aggregate silo 2 via a belt conveyor through the feed inlet of the intermediate aggregate silo 2. At this time, the dust mainly occurs near the feed inlet of the intermediate aggregate silo 2. In this embodiment, the first dust suction port is arranged directly opposite the feed inlet of the intermediate aggregate silo 2, which can effectively improve the dust collection effect of the dust collector 3 on the intermediate aggregate silo 2.
[0051] In one optional embodiment, the dust collector 3 is a bag filter and also has a discharge port located at the bottom, which is directly connected to the lower silo of the aggregate intermediate silo 2. The concrete mixing plant also includes a second valve 5, which is located at the discharge port.
[0052] Understandably, dust entering a baghouse dust collector is collected in the filter bags, forming larger particles. Baghouse dust collectors typically have a discharge port to allow dust particles in the filter bags to flow back to the aggregate silo or mixing unit for full utilization. In existing dust collectors, a single channel often serves as both a dust collection channel and a discharge channel. Due to the high moisture content inside the mixing unit, dust easily clumps inside the pipe, causing blockages and leading to dust collection failure. In this embodiment, however, the dust collector 3 has a separate, dedicated discharge port that is directly connected to the top of the aggregate silo 2. Thus, when the dust collector 3 needs to unload dust, it can be discharged into the aggregate silo 2 through the discharge port. Furthermore, because the discharge port is separately designed specifically for unloading and is directly connected to the lower chamber of the aggregate silo 2, the problem of dust clumps clogging the pipes and causing dust collection failure is effectively avoided, improving the long-term reliability of the dust collector 3.
[0053] In practical applications, when the concrete mixing plant is metering and preparing materials, the second valve 5 is opened so that the dust collected in the dust collector 3 can be discharged into the aggregate intermediate silo 2 under its own gravity for full utilization. When the concrete mixing plant is feeding and mixing materials, the second valve 5 is closed so that the dust collector 3 can collect dust from the mixing host 1. When the concrete mixing plant is unloading materials, since metering and preparation are carried out at the same time, the second valve 5 is opened so that the dust collected in the dust collector 3 can be discharged into the aggregate intermediate silo 2 under its own gravity for full utilization.
[0054] In this embodiment, the concrete mixing plant also includes a controller, which is signal-connected to the second valve 5. The controller is used to control the second valve 5 to close or open according to the operating status of the concrete mixing plant. This effectively improves the automation level of the concrete mixing plant, enabling the second valve 5 to adaptively open or close under the operating conditions of the concrete mixing plant.
[0055] Specifically, the second valve 5 can be a pneumatic butterfly valve, an electric butterfly valve, etc. Of course, in some other embodiments, the second valve 5 can also be an electric gate or other valve used to control the opening and closing of the unloading port.
[0056] In one optional embodiment, the dust collector 3 and the aggregate intermediate silo 2 share a common intermediate wall, and both the first dust suction port and the discharge port are formed on the intermediate wall. This arrangement effectively improves the compactness of the overall structure of the aggregate intermediate silo 2 and the dust collector 3, and reduces manufacturing difficulty and cost.
[0057] In one optional embodiment, the concrete mixing plant further includes a third valve 6, and the top of the mixing host 1 is provided with an air inlet communicating with the outside, and the third valve 6 is located at the air inlet.
[0058] In practical applications, when the concrete batching plant is metering and preparing materials, the third valve 6 is opened to allow the air inlet to replenish air to the mixing host 1, balancing the internal air pressure of the mixing host 1. When the concrete batching plant is feeding materials, the third valve 6 is closed, and the interior of the mixing host 1 becomes a relatively enclosed space. A large amount of aggregate and powder is fed into the mixing host 1, generating dust and causing the internal pressure of the mixing host 1 to rise. The dust is then collected centrally by the dust collector 3. When the concrete batching plant is mixing, the third valve 6 is opened, and the dust collector 3 centrally collects the dust generated inside the mixing host 1. The amount of dust is concentrated inside the mixing host 1. The air inlet can replenish the air inside the mixing host 1, forming an airflow from the air inlet to the dust collector 3, realizing directional dust collection. It can quickly draw the dust inside the mixing host 1 into the dust collector 3, significantly improving the dust collection effect of the mixing host 1, and ensuring that the inside of the mixing host 1 is clearly visible in a short time. When the concrete mixing plant unloads, the third valve 6 opens, and the mixing host 1 unloads, thus forming a negative pressure inside. The air inlet can replenish the air inside the mixing host 1 in time, avoiding the pressure difference inside the mixing host 1 from affecting the powder scale connected to it for measuring powder.
[0059] In this embodiment, the concrete mixing plant also includes a controller, which is signal-connected to the third valve 6. The controller is used to control the third valve 6 to close or open according to the operating status of the concrete mixing plant. This effectively improves the automation level of the concrete mixing plant, enabling the third valve 6 to adaptively open or close under the operating conditions of the concrete mixing plant.
[0060] Specifically, the third valve 6 can be a pneumatic butterfly valve, an electric butterfly valve, etc. Of course, in some other embodiments, the third valve 6 can also be an electric gate or other valve used to control the opening and closing of the air inlet.
[0061] In one optional embodiment, the concrete mixing plant further includes a camera device 7, which is disposed on the outside of the mixing host 1 and aligned with the air inlet. This arrangement allows the air inlet to function as a viewing port, through which the camera device 7 can monitor the internal conditions of the mixing host 1.
[0062] In one alternative embodiment, the concrete mixing plant further includes a powder scale 8, the top of which is connected to a second dust suction port. With this configuration, the dust collector 3 can also suction dust from the powder scale 8.
[0063] Specifically, the top of the powder scale 8 can be connected to a ventilation pipe, which is connected to the pipe between the second dust suction port of the dust collector 3 and the mixing host 1.
[0064] Of course, in other embodiments, the powder scale 8 may be equipped with a separate dust collector specifically for vacuuming.
[0065] In the description of this utility model, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0066] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A concrete mixing plant, characterized in that, include: Mixing host (1); Aggregate intermediate silo (2), the aggregate intermediate silo (2) includes an upper silo body and a lower silo body that are interconnected; The dust collector (3) is integrated inside the upper chamber of the aggregate intermediate silo (2) and has a first dust suction port and a second dust suction port. The first dust suction port is arranged opposite to the feed port of the aggregate intermediate silo (2) and communicates with the interior of the aggregate intermediate silo (2). The second dust suction port is communicated with the top of the mixing host (1). The dust collector (3) is a bag dust collector and also has a discharge port located at the bottom. The discharge port is directly communicated with the lower chamber of the aggregate intermediate silo (2). The first valve (4) is located at the first dust inlet; The second valve (5) is located at the discharge port.
2. The concrete mixing plant according to claim 1, characterized in that, The second suction port is connected to the top of the mixing host (1) through the first suction pipe.
3. The concrete mixing plant according to claim 1, characterized in that, The first dust suction port is arranged directly opposite the feed port of the aggregate intermediate silo (2).
4. The concrete mixing plant according to claim 1, characterized in that, The dust collector (3) and the aggregate intermediate silo (2) share a common intermediate wall, and the first dust suction port and the discharge port are both formed on the intermediate wall.
5. The concrete mixing plant according to claim 1, characterized in that, The concrete mixing plant also includes a third valve (6), and the top of the mixing host (1) is provided with an air inlet that connects to the outside. The third valve (6) is located at the air inlet.
6. The concrete mixing plant according to claim 5, characterized in that, The concrete mixing plant also includes a camera device (7), which is located on the outside of the mixing host (1) and aligned with the air inlet.
7. The concrete mixing plant according to claim 1, characterized in that, The concrete mixing plant also includes a controller, which is signal-connected to the first valve (4). The controller is used to control the first valve (4) to close or open according to the operating status of the concrete mixing plant.
8. The concrete mixing plant according to claim 1, characterized in that, The concrete mixing plant also includes a powder scale (8), the top of which is connected to the second dust suction port.