Solid content measuring device for sedimentation tank of concrete mixing plant

Abstract

The utility model relates to the technical field of concrete production, in particular to a solid content measuring device for a sedimentation tank of a concrete mixing plant. A container body is in a vertical barrel shape, and the periphery of the container body is arranged at the concrete mixing plant through a fixing support. The flushing pipeline is arranged at the top of the container body, a flushing electromagnetic valve is arranged on the flushing pipeline, and a flushing device is arranged at the lower end; the water inlet pipeline is arranged at the top of the container body and is parallel to the flushing pipeline, a water inlet electromagnetic valve is arranged on the water inlet pipeline, and a buffer device is arranged at the lower end; the overflow pipeline is arranged on the side of the container body and used for controlling the water injection capacity. The measuring device comprises a water discharging butterfly valve arranged at the bottom of the container body and a weighing sensor arranged along the periphery of the container body and the fixing support. Full-automatic measurement and all-weather work of the solid content of the sewage in the sedimentation tank of the mixing plant are achieved, manual participation is not needed completely after parameters are set, the labor cost is saved for production enterprises, and the working efficiency of personnel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a solid content measuring device for a sedimentation tank of a concrete mixing station. Background Art

[0002] The existing measuring devices on the market cannot achieve automatic measurement and need manual operation and manual recording of measurement results, which is time-consuming and labor-intensive, with low measurement efficiency and low production efficiency. There is no buffer device. When the flow rate of the water inlet pipe is too fast, the impact force of the water flow impacts the measuring container and the liquid surface, causing the measuring device to shake, the liquid surface to be unstable, and the water level to fail to reach the predetermined position, resulting in large errors in the measurement results; there is no flushing device after the measurement is completed, causing cement, sand and gravel powder impurities to remain on the inner wall of the container with sewage, which cannot be removed after drying, which seriously affects the measurement results over time, thereby affecting the production quality of concrete and causing certain economic losses to the production enterprises; the measurement results cannot be transmitted to the central control system, and the production personnel cannot switch raw materials in time, resulting in a certain waste of resources; the measuring device also does not have remote wireless transmission, lacks real-time supervision, and the quality of concrete cannot be guaranteed, which may cause some safety hazards. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a device for measuring the solid content of a sedimentation tank in a concrete mixing station.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A device for measuring solid content in a sedimentation tank of a concrete mixing station, comprising the following components:

[0006] The container body is in a vertical cylindrical shape, and is arranged at the concrete mixing station through fixed brackets on all sides;

[0007] A flushing pipeline is arranged at the top of the container body, a flushing solenoid valve is arranged on it, and the lower end is connected to the flushing device;

[0008] A flushing device, arranged at the lower end of the flushing pipe, is used to pressurize clean water to flush the inner wall of the container body;

[0009] The water inlet pipe is arranged at the top of the container body and is arranged in parallel with the flushing pipe. A water inlet solenoid valve is arranged on the water inlet pipe, and the lower end is connected to the buffer device;

[0010] The buffer device is arranged at the lower part of the water inlet pipe and is used to buffer the impact of water on the container body and the liquid surface when water is entering, so as to keep the liquid surface stable.

[0011] An overflow pipe is provided on the side of the container body and is used to control the water filling capacity;

[0012] The measuring device comprises a water unloading butterfly valve arranged at the bottom of the container body, and a weighing sensor arranged around the container body and a fixed bracket. The weighing sensor is used for measuring the solid content in the container body.

[0013] The control device is arranged on the side of the shell, and includes a controller and a touch screen, and is used to control the solid content measurement, measurement data transmission, and automatic adjustment of the solid content.

[0014] The outer shell is arranged on the container body and the fixing bracket, plays a role of anti-impact and anti-dust protection, and is used to fix the control box.

[0015] The control box is arranged on the side of the housing and includes a controller and a touch screen for controlling the measurement process and data transmission.

[0016] This technical solution provides a water displacement principle, combined with a weighing sensor, to accurately measure the solid content in the sedimentation tank. Specifically, the container body is used as the measuring body, and its vertical cylindrical design facilitates the deposition of solids and the injection of water; the flushing pipe and the flushing solenoid valve are used to connect the clean water pipeline, and the flushing solenoid valve is opened to provide clean water to the flushing device; the function of the flushing device is to pressurize the clean water in the flushing pipe to flush away the attachments on the inner wall of the container body, so as to avoid the residue left by the previous measurement from affecting the current measurement and ensure the measurement accuracy; the water inlet pipe and the water inlet solenoid valve are used to inject a certain amount of water into the container body; by controlling the amount of water inlet, it can be ensured that the water level in the container remains consistent during each measurement, thereby eliminating the influence of water level changes on the measurement results; the buffer device is used to buffer the impact of water flow on the container body and the liquid surface during water inlet, so as to make the liquid surface more stable and improve the measurement accuracy; the function of the overflow pipe is to control the water injection capacity. When the water level reaches the preset height, the excess water will flow out through the overflow pipe to ensure that the amount of water in the container is constant; the solid content measurement includes a water unloading butterfly valve and a weighing sensor, which is arranged around the container body and is used for the solid content in the container body. For example, in a concrete mixing station, the solid content measuring device is used to monitor the solid material concentration in the sedimentation tank. For example, after the concrete transport truck is used, the inner wall of the tank is cleaned, and the mixer of the mixing station cleans the main machine. The cleaned mixture enters the sedimentation tank. After filtering and sedimentation, the sewage in the sedimentation tank will also enter the production link, and the treated sewage that meets the production requirements will be used for production. By regularly using this solid content measuring device to measure the solid content in the sedimentation tank, the mixing station staff can timely understand the treatment of sewage in the sedimentation tank. When production is met, the treated sewage can be used for production in a timely manner to reduce sewage discharge and improve water utilization.

[0017] In addition, the solid content measuring device for the sedimentation tank of a concrete mixing station proposed in the utility model may also have the following additional technical features:

[0018] According to one embodiment of the utility model, the fixed bracket is a staggered metal frame covering the four sides and the top of the container body; the flushing pipe and the water inlet pipe are both mounted on the fixed bracket; the weighing sensor arranged around the container body is connected to the fixed bracket.

[0019] In this technical solution, the fixed bracket effectively improves the overall stability and load-bearing capacity of the bracket; the staggered arrangement enables the bracket to better disperse and resist stress when subjected to external forces, reducing the possibility of deformation and damage; at the same time, the staggered arrangement also helps to reduce the transmission of noise and vibration and improve the stability of equipment operation. The fixed bracket has good flexibility and adjustability, making it easy to adjust the height and position of the bracket according to actual needs.

[0020] According to an embodiment of the utility model, the flushing pipeline is connected to the clean water pipeline, on which a flushing solenoid valve is arranged, and the lower end is connected to the flushing device. After the flushing solenoid valve is turned on, clean water is provided to the flushing device.

[0021] In this technical solution, since the sewage contains sand, gravel powder, and cement sediment, there will be residues on the inner wall of the container body after each measurement. If it is not rinsed off, it will affect the next measurement result. During each measurement, the flushing process can be accurately controlled by controlling the opening and closing of the flushing solenoid valve. When the container needs to be cleaned, the solenoid valve is opened for flushing; when the cleaning is completed, the solenoid valve is closed to stop flushing. This continuity and controllability ensure the efficiency and convenience of the cleaning process.

[0022] According to an embodiment of the utility model, the flushing device is installed at the lower part of the flushing pipe, and the clean water can flush away the sand, gravel powder and cement residue accumulated in the container body after being pressurized by the flushing device.

[0023] In this technical solution, after the clean water is pressurized by the flushing device, it generates a strong impact force sufficient to flush the sand, gravel powder, and cement sediment on the inner wall of the container. The high-speed flowing clean water forms turbulence inside the container, which can enhance the flushing effect, allowing the clean water to flush the inner wall of the container more evenly, reducing dead angles and blind spots, ensuring the cleanliness of the inside of the container, and ensuring that the results of each measurement are accurate and reliable.

[0024] According to an embodiment of the utility model, the water inlet pipe is connected to a sewage pipe, and the sewage pipe is connected to a sedimentation tank of a mixing station.

[0025] In this technical solution, a large amount of sewage is generated during the production process of the mixing station, which often contains a certain amount of solid particles and unused concrete components. By connecting the water inlet pipe and the sewage pipe, the sewage can be reintroduced into the sedimentation tank for solid-liquid separation. The separated clean water can be used again in the production process of the mixing station, while the solid particles are further processed. This recycling method not only saves water resources, but also reduces production costs.

[0026] According to one embodiment of the utility model, the buffer device is installed at the lower part of the water inlet pipe and presents a conical structure. After the incoming water passes through the buffer device, the water flow is dispersed, reducing the impact of the water flow on the container body and the liquid surface, avoiding large fluctuations in the liquid surface, and improving the accuracy of the container body volume measurement.

[0027] In this technical solution, during actual measurement, after the solenoid valve of the water inlet pipe is opened, the sewage in the sedimentation tank enters the container body through the water inlet pipe. The huge impact force of the water flow will cause the container body to shake; the water flow will also impact the liquid surface, causing large fluctuations in the liquid surface. After the incoming water passes through the buffer device, the water flow is dispersed, reducing the impact of the water flow on the container body, and the liquid surface will be more stable, improving the accuracy of the measurement.

[0028] According to an embodiment of the utility model, the shell covers the container body, the fixing bracket, and other devices to prevent external forces from damaging the equipment and to prevent dust and debris from falling into the container body, and is used to fix the control box.

[0029] In this technical solution, the overall measurement solution is based on the principle of weighing. The stability of the measuring device plays a decisive role in the measurement results. When the measuring device is deformed by external impact, it will seriously affect the measurement accuracy. In addition, in outdoor environments, cement and dust impurities will also fall into the container body. If the impurities adhere to the inner wall and cannot be washed away, the measurement results will be greatly affected. The main function of the outer shell is to protect the measuring device from deformation due to external forces, and to prevent dust impurities from falling into the container body, thereby improving the accuracy of the measurement.

[0030] According to an embodiment of the utility model, the control box has a built-in controller that can control the solid content measurement process and the solid content automatic adjustment process. After the solid content is automatically measured, the system calculates the amount of water required to reduce the solid content to a reasonable range based on the measurement results, and the system automatically completes the water addition, and repeatedly performs this operation until the solid content is reduced to a reasonable range.

[0031] According to one embodiment of the utility model, a control box is provided on the side of the shell, and the control box has a controller and a touch screen built in. The controller is respectively connected to the flushing solenoid valve, the water inlet solenoid valve, the water unloading butterfly valve, the weighing sensor and the touch screen.

[0032] In this technical solution, the controller in the control box is used to receive and process the operation instructions from the touch screen and the feedback data from the weighing sensor components; through the precise control of the flushing solenoid valve, water inlet solenoid valve, and water unloading butterfly valve components by the controller, the automatic management and operation of the measuring device are realized, and the operating efficiency and convenience of the equipment are improved. Various operations are performed on the measuring device through the touch screen, such as setting measurement parameters, starting flushing and water inlet programs, and viewing measurement results.

[0033] According to one embodiment of the utility model, the control box is provided with a wireless module and an Ethernet communication interface, the wireless module is connected to a server of a regulatory department, and the Ethernet communication interface uploads the data collected by the controller to an ERP system.

[0034] In this technical solution, the measurement data collected by the controller is uploaded to the ERP system through the Ethernet interface, which can make these data correlated with other business data to form a complete data chain. Wireless transmission, integration and management of data are realized through the wireless module. It not only improves the efficiency and flexibility of data transmission, but also strengthens the security and compliance of data, providing strong support for the operation and decision-making of enterprises.

[0035] Compared with the prior art, the utility model has the following beneficial effects:

[0036] (1) It realizes the fully automated measurement of the solid content of sewage in the sedimentation tank of the mixing station, works around the clock, and does not require any manual intervention after the parameters are set, which saves labor costs for production enterprises and improves the work efficiency of personnel;

[0037] (2) The measurement results are transmitted to the enterprise ERP system or the regulatory department platform. After receiving the measurement results, the ERP system determines whether the sewage is usable and prompts the central control operator, so that the operator can switch the raw materials in time, realize the intelligent production, save the material cost for the enterprise, and avoid the waste of water resources. It is also convenient for the regulatory department to check the production situation of the enterprise and prevent substandard concrete from flowing into the construction site and posing a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the utility model before assembly.

[0039] Figure 2 It is a schematic diagram of the structure of the utility model after assembly.

[0040] In the figure: 1. Container body; 2. Weighing sensor; 3. Fixed bracket; 4. Water unloading butterfly valve; 5. Electric actuator; 6. Overflow pipe; 7. Water inlet pipe; 8. Flushing pipe; 9. Shell; 10. Control box; 11. Flushing device; 12. Buffer device. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] Example 1

[0043] like Figure 1 and Figure 2 As shown, this embodiment provides a solid content measuring device for a sedimentation tank of a concrete mixing station, including the following components:

[0044] The container body 1 is in a vertical cylindrical shape, and is arranged at a concrete mixing station through fixed brackets 3 around it;

[0045] A flushing pipe 8 is arranged at the top of the container body 1, on which a flushing solenoid valve is arranged, and the lower end is connected to a flushing device 11;

[0046] A flushing device 11 is provided at the lower end of the flushing pipe 8 and is used to flush the inner wall of the container body 1 with pressurized clean water;

[0047] The water inlet pipe 7 is arranged at the top of the container body 1 and is arranged in parallel with the flushing pipe 8. A water inlet solenoid valve is arranged on the water inlet pipe, and the lower end is connected to the buffer device 12;

[0048] The buffer device 12 is arranged at the lower part of the water inlet pipe 7, and is used to buffer the impact of water on the container body 1 and the liquid surface when water is entering, so as to keep the liquid surface stable.

[0049] An overflow pipe 6 is provided on the side of the container body 1 and is used to control the water filling capacity;

[0050] The measuring device comprises a water unloading butterfly valve 4 arranged at the bottom of the container body 1 , and a weighing sensor 2 arranged along the periphery of the container body 1 and the fixed bracket 3 . The weighing sensor 2 is used for measuring the solid content in the container body 1 .

[0051] The control device is arranged on the side of the housing 9, and includes a controller and a touch screen, and is used to control the solid content measurement, measurement data transmission, and automatic adjustment of the solid content.

[0052] The outer shell 9 is arranged on the container body 1 and the fixing bracket 3 to provide anti-impact and anti-dust protection and is used to fix the control box 10.

[0053] The control box 10 is arranged on the side of the housing 9 and includes a controller and a touch screen for controlling the measurement process and data transmission.

[0054] This technical solution provides a water displacement principle, combined with a weighing sensor 2, to accurately measure the solid content in the sedimentation tank. Specifically, the container body 1 serves as the measuring body, and its vertical cylindrical design facilitates the deposition of solids and the injection of water; the flushing pipe 8 and the flushing solenoid valve are used to connect the clean water pipeline, and the flushing solenoid valve is opened to provide clean water to the flushing device 11; the function of the flushing device 11 is to pressurize the clean water in the flushing pipe 8 to flush away the attachments on the inner wall of the container body 1, so as to avoid the residue left over from the previous measurement affecting the current measurement and ensure the measurement accuracy; the water inlet pipe 7 and the water inlet solenoid valve are used to inject a certain amount of water into the container body 1; by controlling the amount of water inlet, It can ensure that the water level in the container remains consistent during each measurement, thereby eliminating the influence of water level changes on the measurement results; the buffer device 12 is set to buffer the impact of water flow on the container body 1 and the liquid surface when water is inlet, so that the liquid surface is more stable and the measurement accuracy is improved; the overflow pipe 6 is used to control the water injection capacity. When the water level reaches a preset height, excess water will flow out through the overflow pipe 6 to ensure that the amount of water in the container is constant; the solid content measurement includes a water discharge butterfly valve 4 and a weighing sensor 2. The weighing sensor 2 is set around the container body 1 and is used for the solid content in the container body 1. For example, in a concrete mixing station, the solid content measurement device is used to monitor the solid material concentration in the sedimentation tank. For example, after the concrete transport truck is used, the inner wall of the tank is cleaned, and the mixer of the mixing station cleans the main machine. The cleaned mixture enters the sedimentation tank. After filtering and sedimentation treatment, the sewage in the sedimentation tank will also enter the production link, and the treated sewage that meets the production requirements will be used for production. By regularly using this solid content measurement device to measure the solid content in the sedimentation tank, the mixing station staff can understand it in time. The treatment of sewage in the sedimentation tank should ensure that the treated sewage is put into production and utilized in a timely manner while meeting production needs, thereby reducing sewage discharge and improving water utilization.

[0055] In addition, the solid content measuring device for the sedimentation tank of a concrete mixing station proposed in the utility model may also have the following additional technical features:

[0056] According to one embodiment of the utility model, the fixed bracket 3 is a staggered metal frame covering the four sides and the top of the container body 1; the flushing pipe 8 and the water inlet pipe 7 are both mounted on the fixed bracket 3; the weighing sensor 2 arranged around the container body 1 is connected to the fixed bracket 3.

[0057] In this technical solution, the fixed bracket 3 effectively improves the overall stability and load-bearing capacity of the bracket; the staggered arrangement enables the bracket to better disperse and resist stress when subjected to external forces, reducing the possibility of deformation and damage; at the same time, the staggered arrangement also helps to reduce the transmission of noise and vibration and improve the stability of equipment operation. The fixed bracket 3 has good flexibility and adjustability, which makes it easy to adjust the height and position of the bracket according to actual needs.

[0058] According to an embodiment of the utility model, the flushing pipe 8 is connected to a clean water pipeline, on which a flushing solenoid valve is provided, and the lower end is connected to a flushing device 11. After the flushing solenoid valve is turned on, clean water is provided to the flushing device 11.

[0059] In this technical solution, since the sewage contains sand, gravel powder, and cement sediment, there will be residues on the inner wall of the container body 1 after each measurement. If it is not rinsed off, it will affect the next measurement result. During each measurement, the flushing process can be accurately controlled by controlling the opening and closing of the flushing solenoid valve. When the container needs to be cleaned, the solenoid valve is opened for flushing; when the cleaning is completed, the solenoid valve is closed to stop flushing. This continuity and controllability ensure the efficiency and convenience of the cleaning process.

[0060] According to an embodiment of the utility model, the flushing device 11 is installed at the lower part of the flushing pipe 8. After the clean water is pressurized by the flushing device 11, the sand, gravel powder and cement residue accumulated in the container body 1 can be flushed away.

[0061] In this technical solution, after the clean water is pressurized by the flushing device 11, a strong impact force is generated to flush the sand, gravel powder, and cement sediment on the inner wall of the container. The high-speed flowing clean water forms turbulence inside the container, which can enhance the flushing effect, make the clean water flush the inner wall of the container more evenly, reduce dead angles and blind spots, ensure the cleanliness of the inside of the container, and ensure that the results of each measurement are accurate and reliable.

[0062] According to an embodiment of the utility model, the water inlet pipe 7 is connected to a sewage pipe, and the sewage pipe is connected to a sedimentation tank of a mixing station.

[0063] In this technical solution, a large amount of sewage is generated during the production process of the mixing station, and this sewage often contains a certain amount of solid particles and unused concrete components; by connecting the water inlet pipe 7 and the sewage pipe, this sewage can be reintroduced into the sedimentation tank for solid-liquid separation; the separated clean water can be used again in the production process of the mixing station, while the solid particles are further processed. This recycling method not only saves water resources, but also reduces production costs.

[0064] According to one embodiment of the utility model, the buffer device 12 is installed at the lower part of the water inlet pipe 7 and presents a conical structure. After the incoming water passes through the buffer device 12, the water flow is dispersed to reduce the impact of the water flow on the container body 1 and the liquid surface, avoid large fluctuations in the liquid surface, and improve the accuracy of the volume measurement of the container body 1.

[0065] In the present technical solution, during actual measurement, after the electromagnetic valve of the water inlet pipe 7 is opened, the sewage in the sedimentation tank enters the container body 1 through the water inlet pipe 7, and the huge impact force of the water flow will cause the container body 1 to shake; the water flow will also impact the liquid surface, causing large fluctuations in the liquid surface. After the incoming water passes through the buffer device 12, the water flow is dispersed, reducing the impact of the water flow on the container body 1, and the liquid surface will be more stable, thereby improving the accuracy of the measurement.

[0066] According to an embodiment of the utility model, the shell 9 covers the container body 1, the fixing bracket 3, and other devices to prevent external forces from damaging the equipment and prevent dust and debris from falling into the container body 1, and is used to fix the control box 10.

[0067] In this technical solution, the overall measurement solution is based on the principle of weighing. The stability of the measuring device plays a decisive role in the measurement result. When the measuring device is deformed by external impact, it will seriously affect the measurement accuracy. In addition, in outdoor environments, cement and dust impurities will also fall into the container body 1. If the impurities adhere to the inner wall and cannot be washed away, the measurement results will be greatly affected. The main function of the shell 9 is to protect the measuring device from deformation due to external forces, and to prevent dust impurities from falling into the container body 1, thereby improving the accuracy of the measurement.

[0068] According to an embodiment of the utility model, the control box 10 has a built-in controller that can control the solid content measurement process and the solid content automatic adjustment process. After the solid content is automatically measured, the system calculates the amount of water required to reduce the solid content to a reasonable range based on the measurement results, and the system automatically completes the water addition, and repeatedly performs this operation until the solid content is reduced to a reasonable range.

[0069] According to one embodiment of the utility model, a control box 10 is provided on the side of the shell 9, and the control box 10 has a built-in controller and a touch screen. The controller is respectively connected to the flushing solenoid valve, the water inlet solenoid valve, the water unloading butterfly valve 4, the weighing sensor 2 and the touch screen.

[0070] In this technical solution, the controller in the control box 10 is used to receive and process the operation instructions from the touch screen and the feedback data from the weighing sensor 2 components; through the precise control of the flushing solenoid valve, the water inlet solenoid valve, and the water unloading butterfly valve 4 components by the controller, the automatic management and operation of the measuring device are realized, and the operating efficiency and convenience of the equipment are improved. Various operations are performed on the measuring device through the touch screen, such as setting measurement parameters, starting flushing and water inlet programs, and viewing measurement results.

[0071] According to an embodiment of the present invention, the control box 10 is provided with a wireless module and an Ethernet communication interface, the wireless module is connected to the server of the regulatory department, and the Ethernet communication interface uploads the data collected by the controller to the ERP system.

[0072] In this technical solution, the measurement data collected by the controller is uploaded to the ERP system through the Ethernet interface, which can be associated with other business data to form a complete data chain. Wireless transmission, integration and management of data are achieved through the wireless module. It not only improves the efficiency and flexibility of data transmission, but also strengthens the security and compliance of data, providing strong support for the operation and decision-making of enterprises.

[0073] The usage process of the above embodiment is as follows:

[0074] like Figure 1 and Figure 2As shown, when the measuring device is just installed or the equipment moves due to other reasons, the measuring device needs to perform a static weight calibration operation; the specific operation steps are: perform zero calibration when the container body 1 is clean and free of residue, and then place a standard weight on the container body for weight calibration. After the weight calibration operation is completed, use standard weights of other weights to verify the measurement linearity of the device. After the linearity is accurate, the volume of the container body 1 is calibrated. The specific method is: fill the container body 1 with clean water until excess clean water flows out from the overflow port, and when no water flows out of the overflow port and the weight is stable, calibrate the displayed weight M0 as the volume of the container body 1 (the density of clean water is considered to be: 1kg / L). When measuring, first, the production staff sets the measurement mode through the touch screen according to actual needs: manual measurement, single measurement, and timed measurement. Manual measurement means that the staff manually controls the action of the measuring device through the operation button on the touch screen to measure; single measurement means that after the measuring device receives the single measurement command, it automatically executes a complete measurement process; timed measurement means that the measuring device automatically executes the measurement process at intervals according to the set time. After the controller starts the measurement process, it first controls the flushing solenoid valve to flush the container body 1 with clean water, in order to flush away the sand, gravel powder, and cement impurities accumulated in the container body 1. After the flushing is completed and the clean water is drained, the water inlet solenoid valve is opened to start injecting sewage into the container body 1, and the sewage is injected until it exceeds the volume of the container body 1 and overflows through the overflow pipe. After the controller measures that the weight is stable and no longer increases, the water inlet solenoid valve is closed. After the water level is stable for a certain period of time and no sewage flows out of the overflow port, the controller measures the weight of the sewage, and then opens the water discharge butterfly valve 4 to discharge the sewage. After repeated water injection, measurement, and water discharge processes, the average weight M1 of the sewage is measured. The controller compares the difference between M1 and M0 with the specific gravity of M0 to determine whether the sewage is qualified for production. After the measurement is completed, the controller opens the flushing solenoid valve again to start flushing, in order to prevent cement, gravel powder impurities from adhering to the inner wall of the container body 1 after drying, affecting the next measurement result. After the measurement process is completed, the controller transmits the measurement results to the production central control ERP system through Ethernet, and the ERP system determines whether to use sewage for production based on the results. For places with regulatory requirements, the controller will also transmit the measurement results to the regulatory department's server via a 4G wireless network module.

[0075] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions shall be within the scope of the utility model / any person of ordinary skill in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the utility model, and they shall be within the scope of protection of the utility model. Therefore, the scope of protection of the utility model shall be based on the scope of protection of the claims.

Claims

1. A device for measuring solid content in a sedimentation tank of a concrete mixing station, characterized in that: Includes the following components: The container body (1) is in a vertical cylindrical shape and is arranged at a concrete mixing station via fixed brackets (3) on all sides; A flushing pipe (8) is arranged at the top of the container body (1), a flushing solenoid valve is arranged on the flushing pipe, and the lower end is connected to the flushing device (11); A flushing device (11), arranged at the lower end of the flushing pipe (8), for flushing the inner wall of the container body (1) with pressurized clean water; A water inlet pipe (7) is arranged at the top of the container body (1) and is arranged in parallel with the flushing pipe (8). A water inlet solenoid valve is arranged on the water inlet pipe, and the lower end is connected to the buffer device (12); A buffer device (12) is arranged at the lower part of the water inlet pipe (7) and is used to buffer the impact of water on the container body (1) and the liquid surface when water is inletted, so as to keep the liquid surface stable; An overflow pipe (6) is arranged on the side of the container body (1) and is used to control the water filling capacity; The measuring device comprises a water discharge butterfly valve (4) arranged at the bottom of the container body (1), and a weighing sensor arranged around the container body (1) and a fixed bracket (3), wherein the weighing sensor (2) is used to measure the solid content in the container body (1); A control device, which is arranged on the side of the housing and includes a controller and a touch screen, and is used to control solid content measurement, measurement data transmission, and automatic adjustment of solid content; The outer shell (9) is arranged on the container body (1) and the fixing bracket (3), plays a role of anti-impact and anti-dust protection, and is used to fix the control box (10); The control box (10) is arranged on the side of the housing and comprises a controller and a touch screen, and is used to control the measurement process and data transmission.

2. The device for measuring solid content in a sedimentation tank of a concrete mixing station according to claim 1, characterized in that: The fixed bracket (3) is a staggered metal frame covering the four sides and the top of the container body (1); the flushing pipe (8) and the water inlet pipe (7) are both mounted on the fixed bracket (3); and the weighing sensor (2) arranged around the container body (1) is connected to the fixed bracket (3).

3. The device for measuring solid content in a sedimentation tank of a concrete mixing station according to claim 1, characterized in that: The flushing pipeline (8) is connected to a clean water pipeline, on which a flushing solenoid valve is arranged, and the lower end is connected to a flushing device. After the flushing solenoid valve is turned on, clean water is provided to the flushing device.

4. The device for measuring solid content in a sedimentation tank of a concrete mixing station according to claim 1, characterized in that: The flushing device is installed at the lower part of the flushing pipe (8), and clean water can flush away sand particles, sand and gravel powder, and cement residues accumulated in the container body (1) after being pressurized by the flushing device.

5. The device for measuring solid content in a sedimentation tank of a concrete mixing station according to claim 1 or 4, characterized in that: The water inlet pipe (7) is connected to the sewage pipe, and the sewage pipe is connected to the sedimentation tank of the mixing station.

6. The device for measuring solid content in a sedimentation tank of a concrete mixing station according to claim 1, characterized in that: The buffer device is installed at the lower part of the water inlet pipe (7) and presents a conical structure. After the incoming water passes through the buffer device, the water flow is dispersed, reducing the impact of the water flow on the container body (1) and the liquid surface, avoiding large fluctuations in the liquid surface, and improving the accuracy of the volume measurement of the container body (1).

7. The device for measuring solid content in a sedimentation tank of a concrete mixing station according to claim 1, characterized in that: A control box (10) is arranged on the side of the housing (9), and a controller and a touch screen are built in the control box. The controller is respectively connected to the flushing solenoid valve, the water inlet solenoid valve, the water discharge butterfly valve (4), the weighing sensor (2) and the touch screen.

8. The device for measuring solid content in a sedimentation tank of a concrete mixing station according to claim 1, characterized in that: The control box (10) is provided with a wireless module and an Ethernet communication interface, the wireless module is connected to the server of the regulatory department, and the Ethernet communication interface uploads the data collected by the controller to the ERP system.

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