Lightweight aggregate concrete production device
The automated density control of the lightweight aggregate concrete production unit solves the problems of difficult mix design and inaccurate density control of lightweight aggregate concrete, achieving efficient and precise concrete production and ensuring consistency in workability and flowability.
Patent Information
- Application Number
- CN202520166150.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The preparation of lightweight aggregate concrete in the existing technology is difficult, the adjustment process consumes a lot of manpower and resources, and it is difficult to accurately control the unit weight value, which affects the workability and flowability.
A lightweight aggregate concrete production device was designed, which includes a mixer, a feeding system and a bulk density control device. The device achieves automated control through a bulk density measuring cylinder, a calculation device and a conveying device, and detects and adjusts the feeding amount in real time to keep the bulk density within the target range.
It improves the efficiency and consistency of concrete production, reduces the need for manual adjustments, avoids production stagnation or waste caused by improper proportioning, and ensures that every batch of concrete meets design standards.
Smart Images
Figure CN223864013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete production technology, and in particular to a lightweight aggregate concrete production device. Background Technology
[0002] Unit weight refers to the mass of concrete per unit volume. In lightweight aggregate concrete, due to the use of lightweight aggregates (such as expanded perlite, foamed concrete aggregates, etc.), the unit weight is usually lower than that of traditional ordinary concrete. The unit weight directly affects the density and overall strength of the concrete.
[0003] Density directly affects the flowability, pumpability, and workability of concrete. Both excessively low and excessively high density can negatively impact workability. For example, too low a density may make the concrete too loose, leading to pumping difficulties or surface treatment problems; while too high a density may result in overly viscous concrete, increasing construction difficulty.
[0004] However, the preparation of lightweight aggregate concrete in existing technologies is difficult. Under normal circumstances, even after repeatedly adjusting the concrete mix design parameters according to JGJ / T 12-2019 "Technical Standard for Application of Lightweight Aggregate Concrete", it is still difficult to achieve the target density value. The adjustment process requires a lot of manpower and resources.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the general background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] This invention provides a lightweight aggregate concrete production device, thereby effectively solving the problems in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a lightweight aggregate concrete production device, comprising:
[0008] A mixer for mixing lightweight aggregate concrete;
[0009] A feeding system is provided on top of the mixer and feeds lightweight aggregate or concrete into the mixer;
[0010] A bulk density control device is installed on the mixer to detect the bulk density of the lightweight aggregate concrete in the mixer and control the feeding system.
[0011] Furthermore, the bulk density control device includes:
[0012] A collection port is provided at the bottom of the mixer to collect lightweight aggregate concrete from inside the mixer.
[0013] A bulk density measuring cylinder is connected to the collection port. The collected lightweight aggregate concrete is transported into the bulk density measuring cylinder, and the bulk density measuring cylinder measures the bulk density value of the lightweight aggregate concrete.
[0014] A computing device electrically connected to the bulk density measuring cylinder, which calculates the weight of lightweight aggregate or concrete to be conveyed by the feeding system based on the bulk density value measured by the bulk density measuring cylinder.
[0015] Furthermore, the bulk density control device also includes a conveying device, one end of which collects the lightweight aggregate concrete measured by the bulk density measuring cylinder, and the other end is connected to the top of the mixer to convey the collected lightweight aggregate concrete into the mixer.
[0016] Furthermore, the bulk density measuring cylinder includes a rotating device that drives the bulk density measuring cylinder to rotate. The bulk density measuring cylinder includes a measuring state and a tilting state. In the measuring state, the bulk density value of the lightweight aggregate concrete is measured. In the tilting state, the lightweight aggregate concrete after the bulk density value is measured is tilted out of the bulk density measuring cylinder.
[0017] The conveying device includes an inlet located at the position corresponding to the tilted state of the bulk density measuring cylinder.
[0018] Furthermore, the connection between the conveying device and the top of the mixer is located on the side of the mixer opposite to the collection port.
[0019] Furthermore, the conveying device includes:
[0020] A first conveying assembly, wherein the inlet is located at one end of the first conveying assembly, and the first conveying assembly is horizontally positioned at the bottom of the mixer;
[0021] The second conveying assembly has one end connected to the other end of the first conveying assembly. The second conveying assembly is inclined and has an outlet at the other end. The outlet is located at the top of the mixer, and the lightweight aggregate concrete is discharged from the outlet and enters the mixer.
[0022] Furthermore, the first conveying component and the second conveying component are screw conveyors.
[0023] Furthermore, the bulk density measuring cylinder includes a volume sensor and a weight sensor. The volume sensor measures the volume of the lightweight aggregate concrete, and the weight sensor measures the weight of the lightweight aggregate concrete. The bulk density value is calculated by combining the volume and weight.
[0024] The beneficial effects of this invention are as follows: The bulk density control device is used to detect the bulk density value of lightweight aggregate concrete in the mixer in real time and adjust the feeding system according to the detection results. When the detected bulk density deviates from the predetermined value, the control device automatically adjusts the workload of the feeding system, adjusting the amount of lightweight aggregate or concrete added in real time to ensure that the bulk density of the concrete remains within the target range. This device reduces the need for manual adjustment, improves the efficiency and consistency of concrete production, and avoids production stagnation or waste caused by improper proportioning. Through real-time detection and automatic adjustment, the bulk density of lightweight aggregate concrete can be accurately controlled, avoiding the tedious process of traditional manual adjustment of mix proportions. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the structure of the bulk density measuring cylinder;
[0028] Figure 3 This is a schematic diagram of the bulk density measuring cylinder in the measurement state.
[0029] Figure 4 This is a schematic diagram of the bulk density measuring cylinder when it is tilted.
[0030] Figure 5 This is a schematic diagram of the conveying device. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0032] like Figures 1 to 5 As shown: A lightweight aggregate concrete production apparatus, comprising:
[0033] Mixer 1 is used to mix lightweight aggregate concrete.
[0034] Feeding system 2 is located on top of mixer 1 and feeds lightweight aggregate or concrete into mixer 1;
[0035] A bulk density control device is installed on the mixer 1 to detect the bulk density of the lightweight aggregate concrete in the mixer 1 and control the feeding system 2.
[0036] Mixer 1 is used to uniformly mix lightweight aggregate concrete, ensuring that different components (such as cement, aggregates, additives, etc.) are thoroughly mixed. For lightweight aggregate concrete, mixer 1 should be designed to handle relatively loose materials and ensure that the concrete does not separate or become uneven during mixing. Feeding system 2 is located at the top of mixer 1 and is responsible for precisely feeding lightweight aggregates, concrete raw materials, and other necessary additives into mixer 1. Feeding system 2 should have precise conveying capacity and adjustable proportioning control to ensure that raw materials are added to mixer 1 in the correct proportions. This is crucial for ensuring the target bulk density is achieved.
[0037] The bulk density control device is used to detect the bulk density of lightweight aggregate concrete in mixer 1 in real time and adjust the feeding system 2 according to the detection results. When the detected bulk density deviates from the predetermined value, the control device automatically adjusts the workload of the feeding system 2, adjusting the amount of lightweight aggregate or concrete added in real time to ensure that the bulk density of the concrete remains within the target range. This device reduces the need for manual adjustments, improves the efficiency and consistency of concrete production, and avoids production stagnation or waste caused by improper proportioning. Through real-time detection and automatic adjustment, the bulk density of lightweight aggregate concrete can be precisely controlled, avoiding the tedious process of traditional manual adjustment of mix proportions.
[0038] In this embodiment, the bulk density control device includes:
[0039] Collection port 31 is located at the bottom of mixer 1 to collect lightweight aggregate concrete inside mixer 1;
[0040] The bulk density measuring cylinder 32 is connected to the collection port 31. The collected lightweight aggregate concrete is transported into the bulk density measuring cylinder 32, and the bulk density measuring cylinder 32 measures the bulk density value of the lightweight aggregate concrete.
[0041] The calculation device 33 is electrically connected to the bulk density measuring cylinder 32 and calculates the weight of lightweight aggregate or concrete that the feeding system 2 needs to transport based on the bulk density value measured by the bulk density measuring cylinder 32.
[0042] A collection port 31 is located at the bottom of the mixer 1 and is responsible for collecting a certain amount of lightweight aggregate concrete from the mixer 1. This location helps to obtain uniformly mixed lightweight aggregate concrete, ensuring that the collected sample can accurately represent the bulk density characteristics of the entire batch of concrete. A bulk density measuring cylinder 32 is connected to the collection port 31 to receive the collected concrete and measure its bulk density. A calculation device 33 is electrically connected to the bulk density measuring cylinder 32 and receives the bulk density value from the cylinder in real time. Based on the bulk density value, the calculation device 33 can determine the current bulk density state using a preset algorithm and calculate the specific weight of lightweight aggregate or concrete that the feeding system 2 needs to replenish.
[0043] The density control device in this scheme achieves fully automated control from sampling, measurement to calculation and feedback, greatly reducing manual intervention and saving time and labor costs. It can accurately calculate the weight of material to be delivered by the feeding system 2, ensuring that each batch of concrete meets design standards, thereby improving overall quality.
[0044] The bulk density control device also includes a conveying device 34. One end of the conveying device 34 collects the lightweight aggregate concrete measured by the bulk density measuring cylinder 32, and the other end is connected to the top of the mixer 1 to convey the collected lightweight aggregate concrete into the mixer 1.
[0045] The conveying device 34 includes a bulk density measuring cylinder 32 connected at one end and a top connection to the mixer 1 at the other end. Its function is to convey the measured lightweight aggregate concrete from the bulk density measuring cylinder 32 back to the mixer 1. This design aims to re-add the collected sample to the mixer 1 after bulk density measurement for further mixing or adjustment, ensuring that the final concrete product reaches the target bulk density. This scheme achieves a closed-loop system, ensuring that the measured concrete can be quickly returned to the mixer 1, avoiding material waste and ensuring consistency in the mixing process for each batch of concrete. Since the lightweight aggregate concrete is not wasted after measurement, the design of conveying it back to the mixer 1 maximizes the utilization of every part of the raw material and reduces waste in production.
[0046] In this embodiment, the bulk density measuring cylinder 32 includes a rotating device 321, which drives the bulk density measuring cylinder 32 to rotate. The bulk density measuring cylinder 32 includes a measuring state and a pouring state. In the measuring state, the bulk density value of the lightweight aggregate concrete is measured. In the pouring state, the lightweight aggregate concrete after the bulk density value is measured is poured out of the bulk density measuring cylinder 32.
[0047] The conveying device 34 includes an inlet 341, which is located at the position corresponding to the tilted state of the bulk density measuring cylinder 32.
[0048] The bulk density measuring cylinder 32 is equipped with a rotating device 321, which can drive the measuring cylinder to rotate. The bulk density measuring cylinder 32 has two working states: measuring state and tilting state.
[0049] Measurement Status: When the bulk density measuring cylinder 32 is in measurement status, it is responsible for accurately measuring the bulk density of concrete. At this time, the bulk density measuring cylinder 32 may measure the mass or volume of concrete through gravity or other sensor technologies to ensure the accuracy of the bulk density data.
[0050] Pour-out state: After the bulk density measurement is completed, the bulk density measuring cylinder 32 is turned into the pour-out state to pour out the measured lightweight aggregate concrete so that it can be sent back to the mixer 1 for further processing or recycling via the conveying device 34.
[0051] The automatic control of the rotating device 321 can ensure seamless connection between the bulk density measurement and the pouring process, reduce manual intervention, and improve the degree of automation. The rotating device 321 can be set as a rotating mechanism of motor gear to drive the bulk density measuring cylinder 32 to rotate.
[0052] The inlet 341 of the conveying device 34 is positioned corresponding to the tilting state of the bulk density measuring cylinder 32. That is, when the bulk density measuring cylinder 32 completes its bulk density measurement and enters the tilting state, the tilted lightweight aggregate concrete directly enters the inlet 341 of the conveying device 34 and is then transported back to the mixer 1 via the conveying device 34. Because the inlet 341 is directly aligned with the tilting state of the bulk density measuring cylinder 32, it ensures that the concrete enters the conveying device 34 quickly and accurately after measurement without interference, avoiding errors or waste during the transfer process. The combination of the rotating device 321 and the conveying device 34 further enhances the automation level of the entire system. Every step of the concrete process, from collection, measurement, tilting to re-transportation, is automated, requiring no manual intervention.
[0053] The connection between the conveying device 34 and the top of the mixer 1 is located on the side of the mixer 1 opposite to the collection port 31.
[0054] The outlet 344 of the conveying device 34 is located at the top of the mixer 1, opposite to the collection port 31. This design ensures a smooth path for the material from measurement to conveying and reduces the resistance to material flow, thus guaranteeing uniform mixing in the mixer 1.
[0055] As a preferred embodiment of the above, the conveying device 34 includes:
[0056] The first conveying assembly 342 has an inlet 341 located at one end of it, and the first conveying assembly 342 is horizontally positioned at the bottom of the mixer 1.
[0057] The second conveying component 343 has one end connected to the other end of the first conveying component 342. The second conveying component 343 is inclined and has an outlet 344 at the other end. The outlet 344 is located at the top of the mixer 1. Lightweight aggregate concrete is discharged from the outlet 344 and enters the mixer 1.
[0058] The inlet 341 of the first conveying assembly 342 is located at the bottom of the mixer 1 and is arranged horizontally. Its function is to receive concrete from the bulk density measuring cylinder 32 and convey it horizontally to the second conveying assembly 343. Horizontal conveying helps maintain the fluidity of the material, reduces the conveying resistance caused by gravity, and ensures that the concrete does not easily accumulate or settle during the conveying process.
[0059] The inclined design of the second conveying assembly 343 helps to use gravity to deliver concrete from the first conveying assembly 342 to the top of the mixer 1 and discharge the concrete through the outlet 344. The outlet 344 is located at the top of the mixer 1, thereby ensuring that the lightweight aggregate concrete can smoothly enter the mixer 1.
[0060] The first conveying component 342 and the second conveying component 343 are screw conveyors.
[0061] The screw conveyor, serving as both the first conveying component 342 and the second conveying component 343, plays a crucial role in material transport during concrete production. The screw conveyor uses rotating helical blades to transport concrete along pipelines to designated locations. It provides stable and continuous material transport, making it suitable for highly viscous materials such as concrete, and avoiding the clogging problems that can occur with traditional conveying methods.
[0062] In this embodiment, the bulk density measuring cylinder 32 includes a volume sensor and a weight sensor. The volume sensor measures the volume of the lightweight aggregate concrete, and the weight sensor measures the weight of the lightweight aggregate concrete. The bulk density value is calculated by combining the volume and weight.
[0063] The bulk density measuring cylinder 32 is equipped with a volume sensor and a weight sensor to measure the volume and weight of the concrete, respectively, and finally calculates the bulk density value of the concrete using these two data points. Volume sensor: measures the volume of lightweight aggregate concrete within the bulk density measuring cylinder 32. Weight sensor: measures the weight of the lightweight aggregate concrete. By measuring volume and weight, the system can accurately calculate the bulk density (i.e., density value) of the lightweight aggregate concrete and adjust the concrete mix ratio or mixing state based on real-time data.
[0064] In the description of this utility model, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.
[0065] 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0066] 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.
[0067] 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 lightweight aggregate concrete production apparatus, characterized in that, include: A mixer for mixing lightweight aggregate concrete; A feeding system is provided on top of the mixer and feeds lightweight aggregate or concrete into the mixer; A bulk density control device is installed on the mixer to detect the bulk density of the lightweight aggregate concrete in the mixer and control the feeding system.
2. The lightweight aggregate concrete production apparatus according to claim 1, characterized in that, The bulk density control device includes: A collection port is provided at the bottom of the mixer to collect lightweight aggregate concrete from inside the mixer. A bulk density measuring cylinder is connected to the collection port. The collected lightweight aggregate concrete is transported into the bulk density measuring cylinder, and the bulk density measuring cylinder measures the bulk density value of the lightweight aggregate concrete. A computing device electrically connected to the bulk density measuring cylinder, which calculates the weight of lightweight aggregate or concrete to be conveyed by the feeding system based on the bulk density value measured by the bulk density measuring cylinder.
3. The lightweight aggregate concrete production apparatus according to claim 2, characterized in that, The bulk density control device also includes a conveying device, one end of which collects the lightweight aggregate concrete measured by the bulk density measuring cylinder, and the other end is connected to the top of the mixer to convey the collected lightweight aggregate concrete into the mixer.
4. The lightweight aggregate concrete production apparatus according to claim 3, characterized in that, The bulk density measuring cylinder includes a rotating device that drives the bulk density measuring cylinder to rotate. The bulk density measuring cylinder includes a measuring state and a tilting state. In the measuring state, the bulk density value of the lightweight aggregate concrete is measured. In the tilting state, the lightweight aggregate concrete after the bulk density value is measured is tilted out of the bulk density measuring cylinder. The conveying device includes an inlet located at the position corresponding to the tilted state of the bulk density measuring cylinder.
5. The lightweight aggregate concrete production apparatus according to claim 3, characterized in that, The connection between the conveying device and the top of the mixer is located on the side of the mixer opposite to the collection port.
6. The lightweight aggregate concrete production apparatus according to claim 4, characterized in that, The conveying device includes: A first conveying assembly, wherein the inlet is located at one end of the first conveying assembly, and the first conveying assembly is horizontally positioned at the bottom of the mixer; The second conveying assembly has one end connected to the other end of the first conveying assembly. The second conveying assembly is inclined and has an outlet at the other end. The outlet is located at the top of the mixer, and the lightweight aggregate concrete is discharged from the outlet and enters the mixer.
7. The lightweight aggregate concrete production apparatus according to claim 6, characterized in that, The first conveying component and the second conveying component are screw conveyors.
8. The lightweight aggregate concrete production apparatus according to claim 2, characterized in that, The bulk density measuring cylinder includes a volume sensor and a weight sensor. The volume sensor measures the volume of the lightweight aggregate concrete, and the weight sensor measures the weight of the lightweight aggregate concrete. The bulk density value is calculated by combining the volume and weight.