A high-precision dynamic metering device for a mixing plant

Abstract

This utility model relates to the field of metering equipment technology, and in particular to a high-precision dynamic metering device for a mixing plant. The technical solution includes a metering tube, an ultrasonic metering host, and a housing. Fixing plates are fixedly connected to both sides of the outer surface of the housing. Buffer plates are fixedly installed on the upper surface of the metering tube near both ends, and the two fixing plates are respectively fixed to the upper surfaces of the two buffer plates. Metering probes are fixedly installed on both sides of the lower surface inside the housing. The ultrasonic metering host is fixedly installed inside the housing. A door panel is rotatably installed on the front surface of the housing via hinges. Heat insulation layers are fixedly installed on the outer surface of the door panel and the inner wall of the housing. This utility model, during the use of water metering equipment in a mixing plant, can avoid the influence of external temperature, electromagnetic interference, and vibration on the metering device, ensuring stable accuracy during long-term use and extending the service life of the metering device.

Description

Technical Field

[0001] This utility model relates to the field of metering equipment technology, specifically a high-precision dynamic metering device for a mixing plant. Background Technology

[0002] A batching plant is mainly used for mixing concrete. It mixes and stirs raw materials such as cement, sand, stone and water in a certain proportion according to the proportion of each raw material in the concrete, so as to produce concrete that meets the requirements. In a concrete batching plant, water is an indispensable part of the concrete mix production, and the amount of water used is related to the quality of the concrete.

[0003] Currently, the accuracy of water metering equipment in batching plants gradually decreases under long-term high-intensity working conditions, as well as the influence of vibration, electromagnetic interference, and external temperature, leading to increased water metering errors and affecting the quality of concrete. To address this, we propose a high-precision dynamic metering device for batching plants. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision dynamic metering device for batching plants. This device avoids the influence of external temperature, electromagnetic interference, and vibration on the metering equipment during its use, ensuring stable accuracy over long-term use and extending its service life. It solves the problem that current batching plant water metering equipment gradually loses accuracy under long-term high-intensity working conditions, as well as the influence of vibration, electromagnetic interference, and external temperature, leading to increased water metering errors and affecting concrete quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision dynamic metering device for a mixing plant, comprising a metering tube, an ultrasonic metering host, and a housing. Fixing plates are fixedly connected to both sides of the outer surface of the housing. Buffer plates are fixedly installed on the upper surface of the metering tube near both ends, and the two fixing plates are respectively fixed to the upper surfaces of the two buffer plates. Metering probes are fixedly installed on both sides of the lower surface inside the housing. The ultrasonic metering host is fixedly installed inside the housing. A door panel is rotatably installed on the front surface of the housing via hinges. A heat insulation layer is fixedly installed on the outer surface of the door panel and the inner wall of the housing. An electromagnetic shielding layer is fixedly installed on the outer surface of the heat insulation layer.

[0006] Preferably, a locking post is fixedly connected to the side of the outer surface of the door panel away from the hinge, and a rotating plate is rotatably installed on the side of the outer surface of the outer shell away from the hinge via a rotating shaft. The outer surface of the rotating plate is provided with a slot. After the door panel is rotated and closed, rotating the rotating plate causes the locking post to engage in the slot, thereby fixing the door panel.

[0007] Preferably, both metering probes are electrically connected to the ultrasonic metering host. The two metering probes detect the water flowing inside the metering tube, and the detection signal is transmitted to the ultrasonic metering host to obtain the flow rate of the water inside the metering tube.

[0008] Preferably, an automatic temperature controller is fixedly installed at the bottom of the inner wall of the outer casing, a through-hole is provided on the upper surface of the outer casing, a semiconductor cooling chip is fixedly installed inside the through-hole, and an electric heating grid is fixedly installed inside the outer casing near the upper surface. Both the electric heating grid and the semiconductor cooling chip are electrically connected to the automatic temperature controller. The automatic temperature controller monitors the temperature inside the outer casing. When the temperature is outside the suitable operating temperature range of the ultrasonic metering host and metering probe, the automatic temperature controller controls the semiconductor cooling chip or the electric heating grid to work to lower or raise the temperature inside the outer casing. When the temperature inside the outer casing is within the suitable operating temperature range of the ultrasonic metering host and metering probe, the automatic temperature controller controls the semiconductor cooling chip or the electric heating grid to stop working.

[0009] Preferably, heat dissipation fins are fixedly connected to the upper surface of the thermoelectric cooler. The heat-absorbing side of the thermoelectric cooler is located inside the outer shell, while the heat-dissipating side is located outside the outer shell. The heat dissipation fins assist the heat dissipation surface of the thermoelectric cooler in dissipating heat.

[0010] Preferably, a fan is fixedly installed inside the outer casing above the heating grid, and the fan is electrically connected to an automatic temperature controller. When the automatic temperature controller controls the operation of the semiconductor cooling chip or the heating grid, it also controls the fan to operate, so that the air inside the outer casing can circulate, and the temperature distribution inside the outer casing can be uniform.

[0011] Preferably, both ends of the metering pipe are welded with connecting flanges, and the metering pipe is connected to the water pipeline of the mixing plant through the connecting flanges and connecting bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by incorporating a metering tube, outer shell, fixing plate, buffer plate, ultrasonic metering host, metering probe, door panel, heat insulation layer, and electromagnetic shielding layer, achieves the effect of preventing external temperature, electromagnetic interference, and vibration from affecting the metering equipment during use in a mixing plant. This ensures stable accuracy of the metering equipment during long-term use and extends its service life. The metering tube is connected to the water pipeline of the mixing plant, and the ultrasonic metering host and metering probe detect and measure the water inside the metering tube. During the use of the metering device, the buffer plate acts as a vibration damping buffer for the metering equipment inside the outer shell, the heat insulation layer provides heat insulation for the metering equipment inside the outer shell, and the electromagnetic shielding layer provides electromagnetic interference protection for the metering device inside the outer shell. This prevents the metering equipment inside the outer shell from being affected by external temperature, electromagnetic interference, and vibration, ensuring the metering accuracy of the device and extending its service life.

[0014] 2. This utility model, by incorporating a semiconductor cooling chip, an electric heating grid, and an automatic temperature controller, achieves further control over the internal temperature of the casing, ensuring that the ultrasonic metering host and metering probe operate within a suitable temperature environment. This improves metering accuracy and extends service life. The automatic temperature controller monitors the internal temperature of the casing. When the temperature is outside the suitable operating temperature range for the ultrasonic metering host and metering probe, the automatic temperature controller activates the semiconductor cooling chip or electric heating grid to lower or raise the internal temperature. When the internal temperature is within the suitable operating temperature range for the ultrasonic metering host and metering probe, the automatic temperature controller stops the semiconductor cooling chip or electric heating grid from operating.

[0015] 3. By incorporating a fan, this utility model enables air circulation inside the casing, thereby ensuring a uniform temperature distribution within the casing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the outer shell of this utility model;

[0018] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0019] Figure 4 This utility model Figure 2 A magnified structural diagram of B in the diagram.

[0020] Reference numerals in the attached diagram: 1. Measuring tube; 2. Connecting flange; 3. Ultrasonic metering main unit; 4. Housing; 5. Measuring probe; 6. Automatic temperature controller; 7. Buffer plate; 8. Fixing plate; 9. Through-hole; 10. Semiconductor cooling chip; 11. Heat dissipation fins; 12. Fan; 13. Electric heating grid; 14. Door panel; 15. Locking post; 16. Rotating plate; 17. Locking slot; 18. Thermal insulation layer; 19. Electromagnetic shielding layer. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] like Figures 1-4 As shown, this utility model proposes a high-precision dynamic metering device for a mixing plant, comprising a metering tube 1, an ultrasonic metering host 3, and a housing 4. Fixing plates 8 are fixedly connected to both sides of the outer surface of the housing 4. Buffer plates 7 are fixedly installed on the upper surface of the metering tube 1 near both ends, with the two fixing plates 8 respectively fixed to the upper surfaces of the two buffer plates 7. Connecting flanges 2 are welded to both ends of the metering tube 1, and the metering tube 1 is connected to the water pipeline of the mixing plant via the connecting flanges 2 and connecting bolts. Metering probes 5 are fixedly installed on both sides of the lower surface inside the housing 4. The ultrasonic metering host 3 is fixedly installed inside the housing 4, and both metering probes 5 are electrically connected to the ultrasonic metering host 3. The two metering probes 5 detect the water flowing inside the metering tube 1, and the detection signal... The signal is transmitted to the ultrasonic metering host 3, and then the flow rate of the water inside the metering tube 1 is obtained. A door panel 14 is installed on the front surface of the outer shell 4 via a hinge. An operation window is provided on the front surface of the outer shell 4, so the ultrasonic metering host 3 inside the outer shell 4 can be operated after the door panel 14 is opened. A locking post 15 is fixedly connected to the side of the outer surface of the door panel 14 away from the hinge. A rotating plate 16 is installed on the side of the outer surface of the outer shell 4 away from the hinge via a rotating shaft. A slot 17 is provided on the outer surface of the rotating plate 16. After the door panel 14 is closed by rotating, rotating the rotating plate 16 causes the locking post 15 to be inserted into the slot 17, thereby fixing the door panel 14. A heat insulation layer 18 is fixedly installed on the outer surface of the door panel 14 and the inner wall of the outer shell 4. An electromagnetic shielding layer 19 is fixedly installed on the outer surface of the heat insulation layer 18.

[0024] In use, the metering tube 1 is connected to the water pipeline of the mixing plant. The water inside the metering tube 1 is detected and measured by the ultrasonic metering host 3 and the metering probe 5. During the use of the metering equipment, the buffer plate 7 plays a role in damping and buffering the metering equipment inside the outer shell 4, the heat insulation layer 18 plays a role in heat insulation and heat preservation of the metering equipment inside the outer shell 4, and the electromagnetic shielding layer 19 plays a role in resisting electromagnetic interference of the metering equipment inside the outer shell 4. This avoids the metering equipment inside the outer shell 4 from being affected by external temperature, electromagnetic interference and vibration, ensuring the metering accuracy of the metering device and extending its service life.

[0025] Example 2

[0026] like Figure 1 and Figure 2 As shown, the high-precision dynamic metering device for a mixing plant proposed in this utility model, compared with Embodiment 1, further includes an automatic temperature controller 6 fixedly installed at the bottom of the inner wall of the outer shell 4, a through-hole 9 provided on the upper surface of the outer shell 4, a semiconductor cooling chip 10 fixedly installed inside the through-hole 9, and an electric heating grid 13 fixedly installed inside the outer shell 4 near the upper surface. Both the electric heating grid 13 and the semiconductor cooling chip 10 are electrically connected to the automatic temperature controller 6. The automatic temperature controller 6 includes an automatic temperature control device, an automatic temperature control system, and a temperature sensor. The temperature sensor detects the temperature inside the outer shell 4, and the automatic temperature control system and automatic temperature control device adjust the temperature according to the monitored temperature. Temperature control semiconductor cooling chip 10 and electric heating grid 13 are operated. Heat dissipation fins 11 are fixedly connected to the upper surface of semiconductor cooling chip 10. The heat-absorbing side of semiconductor cooling chip 10 is located inside the outer shell 4, while the heat dissipation side is located outside the outer shell 4. The heat dissipation fins 11 assist the heat dissipation surface of semiconductor cooling chip 10 in dissipating heat. A fan 12 is fixedly installed inside the outer shell 4 above the electric heating grid 13, and the fan 12 is electrically connected to the automatic temperature controller 6. When the automatic temperature controller 6 controls the semiconductor cooling chip 10 or the electric heating grid 13 to work, it also controls the fan 12 to work, so that the air inside the outer shell 4 can circulate, and the temperature distribution inside the outer shell 4 can be uniform.

[0027] In this embodiment, the temperature inside the outer casing 4 is monitored by an automatic temperature controller 6. When the temperature is outside the suitable operating temperature range for the ultrasonic metering host 3 and the metering probe 5, the automatic temperature controller 6 controls the semiconductor cooling chip 10 or the electric heating network 13 to work, thereby reducing or increasing the temperature inside the outer casing 4. When the temperature inside the outer casing 4 is within the suitable operating temperature range for the ultrasonic metering host 3 and the metering probe 5, the automatic temperature controller 6 controls the semiconductor cooling chip 10 or the electric heating network 13 to stop working, ensuring that the ultrasonic metering host 3 and the metering probe 5 are in a suitable operating temperature environment, thereby improving the accuracy of the measurement and extending their service life.

[0028] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A high-precision dynamic metering device for a mixing plant, comprising a metering tube (1), an ultrasonic metering main unit (3) and a housing (4), characterized in that: Fixed plates (8) are fixedly connected to both sides of the outer surface of the outer shell (4). Buffer plates (7) are fixedly installed on the upper surface of the metering tube (1) near both ends. The two fixed plates (8) are fixedly fixed to the upper surfaces of the two buffer plates (7). Measuring probes (5) are fixedly installed on both sides of the lower surface inside the outer shell (4). An ultrasonic metering host (3) is fixedly installed inside the outer shell (4). A door panel (14) is installed on the front surface of the outer shell (4) by hinge rotation. A heat insulation layer (18) is fixedly installed on the outer surface of the door panel (14) and the inner wall of the outer shell (4). An electromagnetic shielding layer (19) is fixedly installed on the outer surface of the heat insulation layer (18).

2. The high-precision dynamic metering device for a mixing plant according to claim 1, characterized in that: A locking post (15) is fixedly connected to the outer surface of the door panel (14) on the side away from the hinge. A rotating plate (16) is rotatably installed on the outer surface of the outer shell (4) on the side away from the hinge via a rotating shaft. A slot (17) is provided on the outer surface of the rotating plate (16).

3. The high-precision dynamic metering device for a mixing plant according to claim 1, characterized in that: Both of the metering probes (5) are electrically connected to the ultrasonic metering host (3).

4. The high-precision dynamic metering device for a mixing plant according to claim 1, characterized in that: An automatic temperature controller (6) is fixedly installed at the bottom of the inner wall of the outer shell (4). A through-hole (9) is provided on the upper surface of the outer shell (4). A semiconductor cooling chip (10) is fixedly installed inside the through-hole (9). An electric heating grid (13) is fixedly installed inside the outer shell (4) near the upper surface. Both the electric heating grid (13) and the semiconductor cooling chip (10) are electrically connected to the automatic temperature controller (6).

5. The high-precision dynamic metering device for a mixing plant according to claim 4, characterized in that: The upper surface of the semiconductor cooling chip (10) is fixedly connected with heat dissipation fins (11).

6. The high-precision dynamic metering device for a mixing plant according to claim 4, characterized in that: A fan (12) is fixedly installed inside the outer casing (4) above the electric heating grid (13), and the fan (12) is electrically connected to the automatic temperature controller (6).

7. The high-precision dynamic metering device for a mixing plant according to claim 1, characterized in that: Both ends of the metering tube (1) are welded with connecting flanges (2).

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