An automatic production monitoring system for cement grinding aids

Abstract

The utility model relates to the technical field of cement manufacturing, and in particular to an automatic production monitoring system for cement grinding aids, comprising a plurality of feeding devices, the feeding devices comprising a gear pump and a flow meter, the plurality of feeding devices being connected to a pipeline mixing device through a feeding pipe, the pipeline mixing device being connected to a detection pool, the detection pool being connected to a buffer pool, the buffer pool being connected to a storage device, and a DCS being further electrically connected to the gear pump and the flow meter. The DCS receives feedback data from the flow meter and then controls and adjusts the output power of a driving pump, ensuring that the material outputted by each feeding device to the pipeline mixing device is in a specified proportion, so as to ensure that qualified grinding aids are obtained after mixing, and prevent the product quality from being affected by a slight change in the input proportion.

Description

Technical Field

[0001] The utility model relates to the technical field of cement manufacturing, in particular to an automatic production monitoring system for cement grinding aids. Background Art

[0002] Grinding aids are good helpers for the cement industry, which can improve cement grinding efficiency, improve cement product performance, increase mill hourly output, and reduce cement grinding power consumption. It not only saves cement production costs and increases corporate economic benefits, but also facilitates the comprehensive utilization of industrial waste, realizes low-carbon, circular economy production, and accelerates the process of energy conservation and emission reduction and green revolution in the cement industry.

[0003] Grinding aids are generally compounded from several different chemical substances, and the difference in their performance mainly comes from the difference in their components and their contents. At present, the production of grinding aids is mostly under manual control and manual use of simple machinery, which is labor-intensive and prone to human errors due to the lack of process monitoring methods. Once the feed of a certain material fluctuates, it will cause abnormal grinding aid components and content, causing quality fluctuations and an increase in the defective rate, which will cause great waste. Utility Model Content

[0004] The purpose of the utility model is to provide a cement grinding aid automatic production monitoring system to solve the problems raised in the above background technology.

[0005] A cement grinding aid automatic production monitoring system, characterized in that it includes a plurality of feeding devices, wherein the feeding devices include a gear pump and a flow meter, wherein the plurality of feeding devices are connected to a pipeline mixing device through a feeding pipe, wherein the pipeline mixing device is connected to a detection tank, wherein the detection tank is connected to a buffer tank, wherein the buffer tank is connected to a storage device, and further includes a DCS, wherein the DCS is also electrically connected to the gear pump and the flow meter, wherein the DCS receives feedback data from the flow meter and then controls and adjusts the output power of the drive pump.

[0006] Preferably, the feeding device further comprises a storage tank, a feeding valve and a solenoid valve.

[0007] Furthermore, an online density meter and an online pH meter are provided in the detection pool, and the DCS is electrically connected to the online density meter, the online pH meter and the solenoid valve. The DCS receives feedback data from the online density meter and the online pH meter to decide whether to control the opening and closing of the solenoid valve.

[0008] Furthermore, the plurality of feeding devices are respectively a defoaming agent storage device, a bactericide storage device, a brine storage device, an amine storage device, a first auxiliary material storage device, a second auxiliary material storage device and a spare storage device.

[0009] Furthermore, the flow meter is a mass flow meter.

[0010] Compared with the prior art, the utility model has the following beneficial effects: in the utility model, multiple feeding devices are connected to a pipeline mixing device, each feeding device includes a storage tank, a valve, a gear pump, a solenoid valve and a flow meter, the gear pump and the flow meter are electrically connected to the DCS, the DCS system can receive the feedback information of the flow meter in real time, the flow meter is a mass flow meter, and can monitor the instantaneous flow of any feeding device in real time, when the received signal can show that the instantaneous flow exceeds the set range, the DCS system will control the corresponding gear pump to adjust the flow rate to keep it within the set range, so as to maintain the input ratio of various raw materials and prevent the raw material ratio from being unbalanced and causing the product defective rate to increase, the pipeline mixing device is connected to a detection pool, and an online density meter and an online pH meter are arranged in the detection pool, the online density meter and the online pH meter can feed back the detection data to the DCS, and the DCS is connected to the solenoid valves in all the feeding devices, when the online density meter and the online pH meter show that any one of the density or pH value exceeds the set range, the gear pump will be stopped urgently and the valve will be closed, and the system will stop production to reduce it to a minimum at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the production process flow chart of the utility model;

[0012] Figure 2 It is a schematic diagram of production control in the utility model;

[0013] Figure 3 It is a schematic diagram of quality control in the utility model.

[0014] In the figure: 1. feeding device; 101. defoaming agent feeding device; 102. bactericide feeding device; 103. brine feeding device; 104. amine feeding device; 105. first auxiliary material feeding device; 106. second auxiliary material feeding device; 107. standby feeding device; 11. storage tank; 12. valve; 13. gear pump; 14. solenoid valve; 15. flow meter; 2. pipeline mixing device; 3. detection cell; 31. online density meter; 32. online pH meter; 4. buffer tank; 5. storage device; 6. DCS. DETAILED DESCRIPTION

[0015] The following will be combined with specific embodiments and attached Figure 1-3 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0016] A cement grinding aid automatic production monitoring system comprises seven feeding devices 1, which are connected to the same pipeline mixing device 2. The seven feeding devices 1 are respectively a defoaming agent feeding device 101, a bactericide feeding device 102, a brine feeding device 103, an amine feeding device 104, a first auxiliary material feeding device 105, a second auxiliary material feeding device 106 and a spare feeding device 107. The system is provided with a plurality of feeding devices, which can realize accurate feeding, and the raw materials can be switched according to demand. At the same time, a spare feeding device is provided to ensure normal feeding during maintenance.

[0017] Each of the above-mentioned feeding devices 1 includes a storage tank 11, a valve 12, a gear pump 13, a solenoid valve 14 and a flow meter 15. The storage tank 11 is connected to the pipeline mixing device 2 through a feeding pipeline. The feeding pipeline is provided with a valve 12, a gear pump 13, a solenoid valve 14 and a flow meter 15. The flow meter 15 can detect the flow of raw materials from the storage tank 11 to the pipeline mixing device 2 through the feeding pipeline in real time. The flow meters 15 and the solenoid valves 14 in the seven feeding devices 1 are all electrically connected to a DCS 6. The DCS 6 is a prior art. The gear pump 13 is connected to the flow meter 15. The interlocking setting is realized between the flow meter 15. When the feedback value of the flow meter 15 decreases, the DCS6 system will control the gear pump 13 to increase the speed, thereby adjusting and increasing the flow rate of the material in the feed pipeline, so that the monitoring data of the flow meter 15 returns to the preset value range. When the feedback value of the flow meter 15 increases, the DCS6 will control the gear pump 13 to reduce the speed to ensure that the proportion of various materials put into the pipeline mixing device 2 is within the corresponding range, and the grinding aid component and content will not be maintained within the standard range due to problems such as pipeline blockage, so as to ensure normal production of products.

[0018] The flow meter 15 adopts a mass flow meter 15, which uses a mass measurement method and will not be affected by the change in density of the liquid due to temperature changes. It can adapt to the switching needs of using products with different formulas, has high flexibility and a wide range of applications.

[0019] One side of the pipeline mixing device 2 is connected to a detection pool 3, in which an online density meter 31 and an online pH meter 32 are provided. Both the online density meter 31 and the online pH meter 32 are electrically connected to DCS6. Both the online density meter 31 and the online pH meter 32 are existing technologies and can monitor the density and pH value of the materials in the detection pool 3 after mixing in real time. When either the density or the pH value exceeds the set range, it means that the material ratio in the pipeline mixing device 2 in front of the detection pool 3 is unbalanced, which will seriously affect the product quality. DCS6 will urgently stop the gear pump 13 and close the solenoid valve 14 to stop the system from producing to prevent further losses while waiting for engineers to come up with remedial measures.

[0020] The detection pool 3 is connected to a buffer pool 4, which can temporarily store the mixed solution to reserve sufficient reaction time for it. The buffer pool 4 is connected to a storage device 5. The materials that have completed the mixing reaction gradually react to form qualified grinding aids, which can then be stored in the storage device 5 for easy storage and transportation.

[0021] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0022] In the present utility model, "up", "down", "left", "right", "front" and "back" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0023] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A cement grinding aid automatic production monitoring system, characterized in that: The invention comprises a plurality of feeding devices, wherein the feeding devices comprise a gear pump and a flow meter, wherein the plurality of feeding devices are connected to a pipeline mixing device through a feeding pipe, wherein the pipeline mixing device is connected to a detection tank, wherein the detection tank is connected to a buffer tank, wherein the buffer tank is connected to a storage device, and further comprises a DCS, wherein the DCS is also electrically connected to the gear pump and the flow meter, wherein the DCS receives feedback data from the flow meter and then controls and adjusts the output power of the driving pump.

2. The automatic production monitoring system for cement grinding aid according to claim 1 is characterized in that: The feeding device also includes a storage tank, a feeding valve and a solenoid valve.

3. The automatic production monitoring system for cement grinding aid according to claim 2 is characterized in that: An online density meter and an online pH meter are arranged in the detection pool, and the DCS is electrically connected with the online density meter, the online pH meter and the electromagnetic valve. The DCS receives feedback data from the online density meter and the online pH meter to decide on the opening and closing of the electromagnetic valve.

4. The automatic production monitoring system for cement grinding aid according to claim 2 or 3, characterized in that: The plurality of feeding devices are respectively a defoaming agent storage device, a bactericide storage device, a brine storage device, an amine storage device, a first auxiliary material storage device, a second auxiliary material storage device and a spare storage device.

5. The automatic production monitoring system for cement grinding aid according to claim 4 is characterized in that: The flow meter is a mass flow meter.

Images