Cement production line multi-source information visual monitoring system

Abstract

The utility model relates to a cement production line multi-source information visualization monitoring system, which comprises a raw material preparation raw material warehouse, a raw material mill, a raw material homogenization warehouse, a rotary kiln, cement vertical mill equipment arranged in a cement vertical mill workshop, a cement warehouse, a coal mill, a multi-source sensor, a repeater and an upper computer, the multi-source sensor comprises a temperature and humidity sensor arranged in a raw material warehouse for raw material preparation, a temperature sensor arranged on the outer side of a rotary kiln body, an ultrasonic liquid level sensor and a temperature vibration sensor which are arranged in a cement vertical mill workshop, and a dust sensor arranged in a cement packaging production line workshop. The multi-source sensor is connected with the upper computer through the repeater; the five sensors can measure most parameters of a cement production line system and a working site environment, the detection range of the cement production line from the production environment to the equipment operation condition is basically met, and the detection method and principle can be suitable for other equipment working conditions with special requirements.

Description

Technical Field

[0001] The utility model relates to a multi-source information visualization monitoring system for a cement production line. Background Art

[0002] Cement products are widely used in national economic construction and are an indispensable main building material. Due to the rapid development of localization of large-scale cement equipment, the requirements for online monitoring in cement production lines are becoming more and more urgent. Whether the safe operation of cement production lines can be guaranteed is the key to cement production. After a failure occurs in the cement production line system, the efficiency will be reduced at the least, and its various technical and economic indicators will obviously fail to meet the requirements. In severe cases, it will lead to damage to parts and the destruction of the relationship between parts, and eventually the machine will be paralyzed. In the assembly line production system, the normal operation of the entire plant equipment is often affected by the failure of a key equipment, resulting in huge economic losses. Therefore, real-time monitoring of the operating status of the system is of great significance to ensure the safe operation of the cement production line system.

[0003] The traditional monitoring method based on vibration signal characteristics cannot fully reflect the operating status of the system due to the single measurement signal, and can no longer meet the higher requirements of modern machinery for fault monitoring. The multi-sensor, multi-angle, and comprehensive mechanical fault monitoring method that uses multi-source information fusion is crucial to comprehensively reflect the real operating status of the system, and is of great significance to the normal operation of increasingly complex mechanical equipment. Utility Model Content

[0004] The purpose of the utility model is to propose a multi-source information visualization monitoring system for a cement production line to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of this utility model is to adopt the following technical solutions to achieve:

[0006] According to the multi-source information visualization monitoring system of the cement production line proposed by the utility model, it includes a raw material warehouse for raw material preparation, a raw material mill, a raw material homogenization warehouse, a rotary kiln, a cement vertical mill equipment located in a cement vertical mill workshop, a cement warehouse, and a coal mill. The monitoring system includes a multi-source sensor, a repeater, and a host computer;

[0007] The multi-source sensors include temperature and humidity sensors installed in the raw material warehouse for raw material preparation, temperature sensors installed on the outside of the rotary kiln furnace, ultrasonic level sensors and temperature vibration sensors installed in the cement mill workshop, and dust sensors installed in the cement packaging production line workshop;

[0008] The temperature and humidity sensor, the temperature sensor, the ultrasonic liquid level sensor, the temperature vibration sensor, and the dust sensor are all electrically connected to the repeater, and the repeater is electrically connected to the host computer.

[0009] Furthermore, a SM7820B temperature and humidity sensor is provided in the raw material warehouse for raw material preparation.

[0010] Furthermore, two PT100 temperature sensors are arranged outside the rotary kiln body, and the PT100 temperature sensors are externally connected to a transmitter and converted into RS485 signals and electrically connected to a repeater.

[0011] Furthermore, the cement vertical mill workshop is equipped with LGUB1000 ultrasonic liquid level sensor and RS-WZP-N01-1 temperature vibration sensor.

[0012] Furthermore, the cement packaging production line workshop is equipped with PM2.5 / 10 dust sensors.

[0013] Furthermore, the temperature and humidity sensor, the ultrasonic liquid level sensor, the temperature vibration sensor, and the dust sensor are all connected to the repeater via the RS485 transmission line, and the repeater is electrically connected to the host computer via the RS485 transmission line.

[0014] Furthermore, the repeater adopts JPX6021 repeater.

[0015] Furthermore, the JPX6021 repeater is provided with two output interfaces, one of which is electrically connected to a host computer via an RS485 shielded twisted pair cable and an RS485-USB adapter, and the other output interface is used to transmit another signal.

[0016] By means of the above technical solution, the utility model has the following advantages:

[0017] (1) The five sensors in the utility model can measure most parameters of the cement production line system and the working site environment, basically meeting the detection range of the cement production line from the production environment to the equipment operation status, and its detection method and principle can be applied to other equipment working conditions with special requirements;

[0018] (2) The utility model realizes the visual monitoring of the operating status data of the cement production line system. The system is reliable, has high measurement accuracy and good visualization effect;

[0019] (3) The utility model has reliable operation, high measurement accuracy and good visualization effect, and has reference significance for remote monitoring of the operating status of cement production line systems.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the existing cement production process flow chart.

[0022] Figure 2 It is a schematic diagram of the principle of a multi-source information visualization monitoring system for a cement production line of the utility model.

[0023] Figure 3 It is a structural diagram of multi-source sensor data transmission in a multi-source information visualization monitoring system of a cement production line of the utility model.

[0024] Figure 4 It is a schematic diagram of the human-computer interaction interface of the upper computer in the multi-source information visualization monitoring system of the cement production line of the utility model.

[0025] [Reference Signs]

[0026] 1. Raw material warehouse for raw material preparation; 2. Raw material mill; 3. Raw material homogenization warehouse; 4. Rotary kiln; 5. Cement vertical mill equipment; 6. Cement warehouse; 7. Coal mill. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the utility model will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without the need for some of these specific details. The following description of the embodiment is only to provide a better understanding of the utility model by showing an example of the utility model. In the accompanying drawings and the following description, at least part of the known and prior art is not shown to avoid unnecessary ambiguity to the utility model; and, for clarity, the size and shape of the part may be exaggerated. The features or characteristics described below can be combined in one or more embodiments in any suitable manner. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or quantity.

[0028] See also Figure 1 , the process of the existing cement production line is as follows:

[0029] (1) Crushing and pre-homogenization: In the cement production process, most raw materials need to be crushed. The cement raw materials in the raw material warehouse 1 are crushed by the raw material mill 2, and the raw coal is crushed by the coal mill 7. The pre-homogenization technology is to use scientific stacking and reclaiming technology to achieve preliminary homogenization of the raw materials during the storage and retrieval process of the raw materials;

[0030] (2) Raw material preparation: In the cement production process, at least three tons of materials (including various raw materials, fuel, clinker, mixed materials, and gypsum) must be ground for every ton of Portland cement produced. Therefore, it is necessary to reasonably select the grinding equipment and process flow;

[0031] (3) Raw meal homogenization: The quality of raw meal homogenization determines the quality of clinker calcination. The raw meal is homogenized by being input into the raw meal homogenization tank 3;

[0032] (4) Calcination of cement clinker: After the raw material is processed by the pre-watering ball forming system, it enters the rotary kiln 4 for calcination of the clinker. A series of solid phase reactions are carried out in the kiln to generate minerals such as tricalcium silicate and dicalcium silicate;

[0033] (5) Cement grinding: Cement grinding is the last step in cement manufacturing. Its main function is to grind cement clinker and other materials to a suitable particle size, form a certain particle size distribution, meet the requirements of cement slurry coagulation and hardening, and ensure the strength of cement products. In this embodiment, cement grinding is performed by a cement vertical mill equipment 5 located in a cement vertical mill workshop;

[0034] (6) Cement packaging: Cement is shipped from the factory in two ways: bagged and bulk. Cement warehouse 6 is used for bagged shipment.

[0035] See also Figure 2 The multi-source information visualization monitoring system of the cement production line is also equipped with multi-source sensors, including two PT100 temperature sensors, one SM7820B temperature and humidity sensor, one PM2.5 / 10 dust sensor, one LGUB1000 ultrasonic liquid level sensor and one RS-WZ3P-N01-1 temperature and vibration sensor. The raw material warehouse 1 for raw material preparation is equipped with an SM7820B temperature and humidity sensor to monitor the on-site environment and material temperature and humidity; two PT100 temperature sensors are installed on the outside of the rotary kiln 4 furnace body to indirectly measure the furnace body temperature; the cement vertical mill workshop is equipped with an LGUB1000 ultrasonic liquid level sensor and an RS-WZ3P-N01-1 temperature and vibration sensor to measure the temperature, vibration and hydraulic system liquid level of the cement vertical mill equipment 5 to ensure the normal operation of the mechanical equipment; the cement packaging production line workshop is equipped with a PM2.5 / 10 dust sensor to monitor the dust concentration in the packaging workshop.

[0036] See also Figure 3The five types of sensors in the figure constitute the multi-source information acquisition system of the cement production line. Two of the temperature sensors use three-wire PT100 platinum thermal resistors with a temperature measurement range of -70 to 450°C and a temperature measurement accuracy of ±0.3°C. Since the output signal of the PT100 temperature sensor is an analog signal, two 875-RTD-R temperature transmitters are used to convert it into RS485 signals. An SM7820B temperature and humidity sensor uses a standard RS485 bus and Modbus RTU protocol interface, which is convenient for access to various instruments or systems such as PLC and DCS. It is used to monitor state quantities such as temperature and humidity. The temperature measurement range is -30 to 85°C and the humidity range is 5%RH to 90%RH. A PM2.5 / 10 dust sensor, which uses the laser scattering measurement principle, can measure the number of particulate matter particles with equivalent particle size per unit volume. It is suitable for monitoring the production site environment. It can measure PM2.5, PM10, and PM1.0 at the same time, and can measure temperature and humidity at the same time. The temperature range is -40 to +80°C, and the humidity range is 0% RH to 100% RH. A LGUB1000 ultrasonic level sensor can measure the level parameters of the hydraulic system. An RS-WZ3P-N01-1 temperature and vibration sensor can simultaneously measure the temperature of mechanical equipment and the vibration of the moving body in the three directions of the X, Y, and Z axes online. Except for two PT100 temperature sensors that need to be converted into RS485 signals by external dedicated transmitters, the remaining sensors use RS485 communication output and support Modbus RTU fieldbus communication protocol. The JPX6021 repeater is equipped with two output interfaces. After the five multi-source sensors are connected in parallel through the RS485 bus, the JPX6021 repeater divides one RS485 signal into two RS485 signals. One of them is connected to the USB interface of the host computer through the RS485 shielded twisted pair and RS485-USB converter to complete the connection of data from the field layer to the host computer. The other RS485 signal can be used to expand the subsequent monitoring function of the system. The human-computer interaction interface of the host computer can realize the visualization of data parameters on the cement production line. Furthermore, according to actual needs, the host computer can also realize dynamic curves, data display, data filtering, data storage, data playback and other functions, such as Figure 4 shown.

[0037] The above two PT100 temperature sensors, one SM7820B temperature and humidity sensor, one PM2.5 / 10 dust sensor, one LGUB1000 ultrasonic level sensor and one RS-WZ3P-N01-1 temperature and vibration sensor can measure most parameters of the cement production line system and the work site environment, and can meet the detection range of the cement production line from the production environment to the equipment operation status, and its detection method and principle can be applied to other equipment working conditions with special requirements.

[0038] The above is only a preferred embodiment of the present invention. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, makes any simple modifications, equivalent changes and modifications to the above embodiments based on the technical essence of the present invention, which still fall within the scope of the technical solution of the present invention.

Claims

1. A multi-source information visualization monitoring system for a cement production line, comprising a raw material warehouse for raw material preparation (1), a raw material mill (2), a raw material homogenization warehouse (3), a rotary kiln (4), a cement vertical mill equipment (5) located in a cement vertical mill workshop, a cement warehouse (6), and a coal mill (7), characterized in that: The monitoring system includes multi-source sensors, repeaters and host computers; The multi-source sensor comprises a temperature and humidity sensor installed in a raw material storage (1) for raw material preparation, a temperature sensor installed on the outside of a rotary kiln (4) furnace body, an ultrasonic level sensor and a temperature vibration sensor installed in a cement vertical mill workshop, and a dust sensor installed in a cement packaging production line workshop; The temperature and humidity sensor, the temperature sensor, the ultrasonic liquid level sensor, the temperature vibration sensor, and the dust sensor are all electrically connected to the repeater, and the repeater is electrically connected to the host computer.

2. The multi-source information visualization monitoring system for cement production line according to claim 1 is characterized by: The raw material warehouse (1) for raw material preparation is equipped with a SM7820B temperature and humidity sensor.

3. The multi-source information visualization monitoring system for cement production line according to claim 1 is characterized by: Two PT100 temperature sensors are arranged on the outside of the rotary kiln (4) furnace body. The PT100 temperature sensors are connected to an external 875-RTD-R transmitter to convert the signals into RS485 signals and are electrically connected to a repeater.

4. The multi-source information visualization monitoring system for cement production line according to claim 1 is characterized by: The cement vertical mill workshop is equipped with LGUB1000 ultrasonic liquid level sensor and RS-WZ3P-N01-1 temperature vibration sensor.

5. The multi-source information visualization monitoring system for cement production line according to claim 1 is characterized by: The cement packaging production line workshop is equipped with PM2.5 / 10 dust sensors.

6. The multi-source information visualization monitoring system for cement production line according to claim 1 is characterized by: The temperature and humidity sensor, ultrasonic liquid level sensor, temperature vibration sensor, and dust sensor are all connected to the repeater via the RS485 transmission line, and the repeater is electrically connected to the host computer via the RS485 transmission line.

7. The multi-source information visualization monitoring system for cement production line according to claim 1 is characterized by: The repeater uses JPX6021 repeater.

8. The multi-source information visualization monitoring system for cement production line according to claim 7 is characterized by: The JPX6021 repeater has two output interfaces, one of which is electrically connected to the host computer through an RS485 shielded twisted pair cable and an RS485-USB adapter, and the other output interface is used to transmit another signal.

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