Aggregate packing density real-time feedback intelligent monitoring system

Abstract

The utility model discloses an aggregate packing density real -time feedback intelligent monitoring system. The system includes aggregate automatic weighing system, aggregate transmission system, aggregate stirring system, quality inductive system, overflow quality weighing system and control system, and the automatic weighing system includes aggregate bin and the weighing inductor I of being placed below, and the stirring system is connected with the weighing inductor I through the transmission system, and the quality inductive system includes the water inlet pipe, the water outlet flow guide pipe, the container and the weighing inductor II on it, and the water inlet pipe and the water outlet flow guide pipe are connected above the container, and the other end of the water outlet flow guide pipe is connected the container on the quality inductor in overflow quality weighing system, and the control system is connected each part through the cable data line. Through adopting this system real -time monitoring aggregate packing density, the production personnel can have emergency time through adjusting sand rate, cementing material dosage or admixture to improve concrete performance, and further adjusts and optimizes aggregate gradation, guarantees concrete production quality stability.

Description

Technical Field

[0001] This utility model relates to a monitoring system for aggregate bulk density, specifically to an intelligent monitoring system for real-time feedback of aggregate bulk density. Background Technology

[0002] The particle size distribution of coarse aggregate used in concrete preparation directly affects the porosity of the aggregate. To achieve the same workability, maximizing the bulk density of crushed stone significantly reduces the porosity, thereby reducing the amount of paste filling the aggregate voids and increasing the bulk density of this composite material, thus comprehensively improving concrete quality. The particle size distribution and porosity of crushed stone are crucial technical indicators affecting concrete quality, and using well-graded crushed stone is fundamental to producing high-quality concrete. However, in actual production, the particle size distribution of aggregate used by ready-mixed concrete manufacturers is often inadequate. Furthermore, during stacking and unloading, large stones tend to roll to the bottom of the stockpile, resulting in significant differences in particle size distribution across different parts of the aggregate yard. Unstable particle size distribution and large variations in porosity greatly reduce concrete quality and stability, causing fluctuations in the working state of freshly mixed concrete, leading to poor fluidity, segregation, bleeding, or other issues, further impacting construction and project quality. Utility Model Content

[0003] To effectively address the problem of aggregate bulk density variation caused by gradation imbalance during aggregate production and application, which in turn affects the performance of concrete mixtures, construction quality, and project quality, this utility model provides an intelligent monitoring system for real-time feedback of aggregate bulk density.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An intelligent monitoring system for real-time feedback of aggregate bulk density includes an automatic aggregate weighing system, an aggregate conveying system, an aggregate mixing system, a mass sensing system, an overflow mass weighing system, and a control system. The automatic aggregate weighing system includes a weighing sensor I, a cable data line, and an aggregate bin; a discharge port is provided below the aggregate bin, and a valve switch is provided at the discharge port; the weighing sensor I is located below the discharge port. The aggregate mixing system includes a cable data line and a mixing device; a feed inlet is provided on one side of the mixing device, which is connected to the weighing sensor I through the aggregate conveying system; a discharge port is provided at the bottom of the mixing device. The mass sensing system includes a cable data line, a water inlet pipe, a weighing sensor II, a container I, and a water outlet guide pipe; the container I is placed below the discharge port and on the weighing sensor II; a sealing cover is provided on the top of the container I, and a water inlet and a water outlet are provided on the sealing cover. The water inlet is connected to the water inlet pipe, and the water outlet is connected to one end of the water outlet guide pipe. The overflow mass weighing system includes container II, a mass sensor, and a cable data line; the other end of the water outlet guide pipe is connected to container II, and container II is placed on the mass sensor; The control system is connected to the weighing sensor I, the aggregate conveying system, the mixing equipment, the weighing sensor II, the mass sensor, and the aggregate bin via cables and data lines.

[0005] Furthermore, the aggregate conveying system is a track.

[0006] The method for detecting aggregate bulk density using the real-time feedback intelligent monitoring system for aggregate bulk density described in this utility model includes the following: (1) Before concrete production, the aggregate is weighed and mixed automatically in equal proportion. The aggregate is discharged from the aggregate bin to the weighing sensor I according to the amount of aggregate used for concrete production or the aggregate of different grades. When the required weight is reached, the weighing sensor I transmits the data to the control system. The control system issues an instruction to close the valve at the outlet of the aggregate bin. (2) After the aggregate bin outlet is closed, the data is transmitted to the control system. The control system automatically turns on the aggregate transmission system switch and the aggregate transmission system transmits the aggregate to the aggregate mixing system. (3) When the aggregate transfer system transfers the aggregate to the aggregate mixing system, the feed port on one side of the mixing equipment is opened, the aggregate is poured into the mixing equipment, the feed port is closed, the control system issues an instruction to start mixing, the mixing time is 30s, and then the aggregate is discharged from the discharge port of the mixing equipment. (4) After the aggregate is discharged from the discharge port of the aggregate mixing system, it is poured into the container above the weighing sensor in the mass sensing system. After the mass is stable and the difference between the mass and the data of the weighing sensor in the automatic aggregate weighing system is within 1%, after stabilizing for 5 seconds, the sealing cap is pressed down to seal and fix it. Then the water inlet above the container is opened to start water injection, and the water injection volume is 50% of the aggregate mass. (5) After water is injected into the container of the mass sensing system, the water overflows from the outlet guide pipe and enters the container of the overflow mass weighing system. If the water volume at the inlet does not change within 5 seconds, the weighing data is transmitted to the concrete production control room. If the water mass weighing value exceeds ±5% of the specified value, the data will be transmitted to the concrete production control room and a warning will be issued. The specified value is the mass of the overflow water after adding 50% of the aggregate mass of water to the uniform aggregate under laboratory conditions.

[0007] This system determines the amount of water that overflows after adding water, based on the bulk density of the aggregates during the initial mixing process. If the bulk density of the aggregates remains constant during the subsequent mixing, the amount of water overflowing remains the same. An increase in the amount of water overflowing indicates an increase in the aggregate bulk density, while a decrease indicates a decrease. The bulk density of the aggregates affects their properties, thus influencing the performance of the concrete.

[0008] Compared with the prior art, the present invention has the following beneficial effects: By using this utility model system to monitor aggregate bulk density in real time, production personnel have time to improve concrete performance by adjusting sand ratio, cementitious material dosage, or admixtures, and further adjust and optimize aggregate gradation to ensure the stability of concrete production quality. Attached Figure Description

[0009] Figure 1 This invention relates to the aggregate bulk density real-time feedback intelligent monitoring system.

[0010] Figure 1 The labels are as follows: 1-1 Weighing sensor I, 1-3 Valve switch, 1-4 Aggregate bin, 2-1 Aggregate transfer system, 3-2 Feed inlet, 3-3 Mixing equipment, 3-4 Discharge port, 4-2 Water inlet pipe, 4-3 Weighing sensor II, 4-4 Container I, 4-5 Sealing cover, 4-6 Water outlet guide pipe, 5-1 Container II, 5-2 Mass sensor, 6 Control system, 1-2, 2-2, 3-1, 4-1, 5-3, 6-1 Cable data. Detailed Implementation

[0011] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings.

[0012] Example An intelligent monitoring system for real-time feedback of aggregate bulk density includes an automatic aggregate weighing system, an aggregate conveying system, an aggregate mixing system, a mass sensing system, an overflow mass weighing system, and a control system. The automatic aggregate weighing system includes a weighing sensor I1-1, a cable data line 1-2, and an aggregate bin 1-4; an outlet is provided below the aggregate bin 1-4, and a valve switch 1-3 is provided at the outlet; the weighing sensor I is located below the outlet. The aggregate mixing system includes a cable data line 3-1 and a mixing device 3-3; a feed inlet 3-2 is provided on one side of the mixing device, which is connected to a weighing sensor I1-1 through an aggregate conveying system 2-1; a discharge port 3-4 is provided at the bottom of the mixing device. The mass sensing system includes a cable data line 4-1, a water inlet pipe 4-2, a weighing sensor II 4-3, a container I 4-4, and a water outlet guide pipe 4-6; the container I is placed below the discharge port and on the weighing sensor II; a sealing cover is provided on the top of the container I, and a water inlet and a water outlet are provided on the sealing cover. The water inlet is connected to the water inlet pipe, and the water outlet is connected to one end of the water outlet guide pipe. The overflow mass weighing system includes container II 5-1, mass sensor 5-2 and cable data line 5-3; the other end of the water outlet guide pipe is connected to container II, and container II is placed on the mass sensor. The control system is connected to the weighing sensor I, the aggregate conveying system, the mixing equipment, the weighing sensor II, the mass sensor, and the aggregate bin via cable data lines.

[0013] Furthermore, the aggregate conveying system is a track.

[0014] The method for detecting aggregate bulk density using the real-time feedback intelligent monitoring system for aggregate bulk density described in this utility model includes the following: (1) Before concrete production, the aggregate is weighed and mixed automatically in equal proportion. The aggregate is discharged from the aggregate bin to the weighing sensor I according to the amount of aggregate used for concrete production or the aggregate of different grades. When the required weight is reached, the weighing sensor I transmits the data to the control system. The control system issues an instruction to close the valve at the outlet of the aggregate bin. (2) After the aggregate bin outlet is closed, the data is transmitted to the control system. The control system automatically turns on the aggregate transmission system switch and the aggregate transmission system transmits the aggregate to the aggregate mixing system. (3) When the aggregate transfer system transfers the aggregate to the aggregate mixing system, the feed port on one side of the mixing equipment is opened, the aggregate is poured into the mixing equipment, the feed port is closed, the control system issues an instruction to start mixing, the mixing time is 30s, and then the aggregate is discharged from the discharge port of the mixing equipment. (4) After the aggregate is discharged from the discharge port of the aggregate mixing system, it is poured into the container above the weighing sensor in the mass sensing system. After the mass is stable and the difference between the mass and the data of the weighing sensor in the automatic aggregate weighing system is within 1%, after stabilizing for 5 seconds, the sealing cap is pressed down to seal and fix it. Then the water inlet above the container is opened to start water injection, and the water injection volume is 50% of the aggregate mass. (5) After water is injected into the container of the mass sensing system, the water overflows from the outlet guide pipe and enters the container of the overflow mass weighing system. When the water volume in the container of the overflow mass weighing system, i.e. container II, does not change within 5 seconds (after the water volume stabilizes), the weighing data is transmitted to the concrete production control room. When the water mass weighing value exceeds ±5% of the specified value, the data transmitted to the concrete production control room will issue a warning. The specified value is the mass of the overflowing water after adding 50% of the aggregate mass of water to the uniform aggregate under laboratory conditions.

[0015] This system measures the amount of water that overflows after adding water, based on the initial bulk density of the aggregates during blending. If the bulk density of the blended aggregates remains constant, the amount of water overflowing remains the same. An increase in overflowing water indicates an increase in aggregate bulk density, while a decrease indicates a decrease. This system monitors aggregate bulk density in real time, guiding the control of its impact on concrete performance when changes occur.

Claims

1. A real-time feedback intelligent monitoring system for aggregate bulk density, characterized in that, It includes an automatic aggregate weighing system, an aggregate conveying system, an aggregate mixing system, a mass sensing system, an overflow mass weighing system, and a control system; The automatic aggregate weighing system includes a weighing sensor I (1-1), a cable data line (1-2), and an aggregate bin (1-4); the aggregate bin (1-4) has a discharge port at the bottom, and a valve switch (1-3) is provided at the discharge port; the weighing sensor I (1-1) is located below the discharge port; The aggregate mixing system includes a cable data line (3-1) and a mixing device (3-3); the mixing device (3-3) has an inlet (3-2) on one side, which is connected to the weighing sensor I (1-1) through the aggregate transmission system (2-1); the mixing device (3-3) has a discharge port (3-4) at the bottom. The mass sensing system includes a cable data line (4-1), a water inlet pipe (4-2), a weighing sensor II (4-3), a container I (4-4), and a water outlet guide pipe (4-6); the container I (4-4) is placed below the discharge port (3-4) and on the weighing sensor II (4-3); a sealing cover (4-5) is provided on the top of the container I (4-4), and a water inlet and a water outlet are provided on the sealing cover (4-5). The water inlet is connected to the water inlet pipe (4-2), and the water outlet is connected to one end of the water outlet guide pipe (4-6); The overflow mass weighing system includes container II (5-1), mass sensor (5-2), and cable data line (5-3); the other end of the water outlet guide pipe (4-6) is connected to container II (5-1), and container II (5-1) is placed on mass sensor (5-2); The control system is connected to the weighing sensor I (1-1), aggregate conveying system (2-1), mixing equipment (3-3), weighing sensor II (4-3), mass sensor (5-2), and aggregate bin (1-4) via cables and data lines.

2. The aggregate bulk density real-time feedback intelligent monitoring system according to claim 1, characterized in that, The aggregate conveying system is a track.

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