CN105271398A - Hydrolysis integrated system and working method thereof - Google Patents
Hydrolysis integrated system and working method thereof Download PDFInfo
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- CN105271398A CN105271398A CN201510767658.XA CN201510767658A CN105271398A CN 105271398 A CN105271398 A CN 105271398A CN 201510767658 A CN201510767658 A CN 201510767658A CN 105271398 A CN105271398 A CN 105271398A
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Abstract
The invention relates to sulfate process titanium dioxide production hydrolysis technologies, and provides a hydrolysis integrated system. A work station is used for setting run programs of a PLC cabinet, monitoring the working state of the PLC cabinet and storing PLC historical working parameters; a gray point judgment instrument is used for detecting light transmittance of titanium liquor, obtaining graying point of the hydrolyzed titanium liquor, comparing the graying point with a preset gray point and transmitting the comparison result to the PLC cabinet; the PLC cabinet is used for controlling the working states of a first temperature controller, a first speed governor, a feeding pump, a pure water pump, a second temperature controller, a second speed governor and a discharging pump according to the run programs or the comparison result of the gray point judgment instrument and used for feeding the working parameters of the PLC cabinet back to the work station. The full automatic hydrolysis technology and equipment integrated system is set up, the labor intensity of workers is relieved, manual operation errors are reduced, and the particle size distribution of hydrolyzed metatitanic acid is stabilized further. The hydrolysis integrated system is suitable for the automatic integrated control system of sulfate process titanium dioxide production hydrolysis equipment.
Description
Technical field
The present invention relates to sulfate process titanium dioxide and produce technology for hydrolyzing, particularly sulfate process titanium dioxide produces hydrolysis device automatization integrated control system.
Background technology
At present, domestic sulfuric acid method titanium pigment is produced hydrolysis link major part and is adopted semi-automatic operator scheme, such as steam valve aperture can realize automatically regulating according to steam flow demand, but steam flow still needs to be modified by man-machine interactive platform input and output, and do not realize the adjustment of full automatic closed loop feedback; Also some production line adopts manual operation pattern completely, and the cut-offfing even to monitor with the statistics of the real time datas such as aperture, temperature and thing position of valve is manual operation.So not only increase the labour intensity of workman, also therefore cause the interference of a lot of human factor to quality product.
For this present situation, domestic also have some professional persons to propose corresponding solution, and achieve its application in industry spot to a certain extent.Donghua Engineering Technology Co., Ltd's rice surpasses in " the instrumentation design feature of titanium dioxide in sulfate process production equipment " literary composition, for Ma'an Mountain 6kt/a titanium dioxide in sulfate process production line, mainly implement based on the measure of Intelligent Digital Readout Meter control, small PLC+PC to carry out monitoring and controlling scheme to technique then be have employed on the hydrolyzing process affecting quality product.But it achieves the automatization that temperature, pressure, flow, the on-line monitoring of thing bit data and centralized supervisory control and by-pass valve control cut-off and regulate, not do not set about research from the impact of hydrolysis process operating parameters on quality product, its program also just realizes logic chain lock function, and can not set process operation parameter and revise.
Sun Li (" research and development of titanium powder plant control integration system ") is then for Guangzhou titanium powder plant, the real-time automatic collecting of Partial key data is achieved by data acquisition network, and achieve and leave concentratedly together with manual records of other dispersions and manage, achieve the analysis of data, process and far-end real time monitoring.But the infosystem of its facing to manufacture data gathering of mainly setting up based on enterprise ERP (EnterpriseResourcePlanning) system and quality control, do not improve the automatization level of hydrolyzing process equipment and instrument, do not realize hydrolyzing process technological operation system automation yet and control.
Zhao Shidan proposes in " being conscientiously improved to the automatization of target propelling titanium white production to obtain in quality and cost " literary composition, in production process of titanium pigment, adopt embedded, instrumentation Structure composing DCS closed loop automatic control to regulate to the automatic feedback of real-time, the automatic detection and corresponding by-pass valve control that realize temperature, pressure etc., thus realize the automatic control of key production steps.Existing sulfate process titanium dioxide manufacturing enterprise adopts DCS automatic control system at present, but due to equipment level, state of the art is limited or using method is improper, DCS system is caused to produce slightly aobvious " complexity " for sulfate process titanium dioxide and cost is relatively high, thus not too applicable.
Domestic sulfate process titanium dioxide is produced, especially the critical process of quality product is had influence on as hydrolyzing process, although existing personage recognizes the importance of Automated condtrol and proposes innovative approach, but due to could not by the exploitation of automatic control program, the advanced use of engineer equipment and the control of preferred process parameter perfectly combine, and Some Enterprises not yet recognizes the material impact of automatic control level and stability good and bad to quality product, or based on the consideration that the increase of investing and short-term benefit are returned, therefore the Automated condtrol major part that current domestic sulfate process titanium dioxide produces hydrolyzing process is still in the even inferior semi-automatic PLC Row control level of medium level, only can reduce the labour intensity of execute-in-place, and quality and the stability of product can not be guaranteed.Therefore, develop not only control flow and but also the Automatic Control system of controling parameters be that the quality of production is stablized, the inexorable trend of high quality titanium white production development.
Summary of the invention
Technical problem to be solved by this invention, is just to provide a kind of integrated system that is hydrolyzed and produces the integrated of the Automated condtrol of hydrolyzing process to realize sulfate process titanium dioxide.
The present invention solve the technical problem, the technical scheme adopted is, hydrolysis integrated system, comprises workstation, PLC control cabinet, temperature regulator one, foreheater well heater, speed regulator one, foreheater agitator, charge pump, pure water pump, temperature regulator two, hydrolyzer well heater, speed regulator two, hydrolyzer agitator, discharging pump and ash point decision instrument;
Described workstation is connected with PLC control cabinet, PLC control cabinet is connected with temperature regulator one, speed regulator one, charge pump, pure water pump, temperature regulator two, speed regulator two and discharging pump respectively, temperature regulator one is connected with foreheater well heater, speed regulator one is connected with foreheater agitator, temperature regulator two is connected with hydrolyzer well heater, and speed regulator two is connected with hydrolyzer agitator;
Described workstation, for setting the working procedure of PLC control cabinet, the working order of monitoring PLC control cabinet, stores PLC history working parameter;
Described ash puts decision instrument, for detecting titanium liquid transparence, obtaining the change ash point of Hydrolysis of Titanium liquid and itself and default ash point being compared, and comparative result being transferred to PLC control cabinet;
Described PLC control cabinet, for controlling, also for the working parameter of PLC control cabinet is fed back to workstation according to the working order of comparative result to temperature regulator one, speed regulator one, charge pump, pure water pump, temperature regulator two, speed regulator two and discharging pump of working procedure or ash point decision instrument.
Concrete, described ash point decision instrument comprises ultra-violet and visible spectrophotometer.
Concrete, also comprise control interface one, control interface two and control interface three, PLC control cabinet is connected with charge pump by control interface one, be connected with pure water pump by control interface two and be connected with discharging pump by control interface three.
Concrete, also comprise ups power, described ups power is connected with workstation and PLC control cabinet respectively.
Concrete, described workstation is provided with communication module, systems axiol-ogy PLC control cabinet working order and pre-set work program inconsistent time, issue information warning to mobile terminal.
The method of work of hydrolysis integrated system, comprises the following steps:
Step 1, user are according to waiting to be hydrolyzed the working parameter and grey point that require to preset hydrolysis integrated system, and system carries out work according to the working parameter preset;
The real-time working parameter of step 2, systems axiol-ogy hydrolysis integrated system, and itself and the working parameter preset are compared, according to comparison information real-time regulating system working order;
Step 3, systems axiol-ogy titanium liquid transparence, obtain the real-time of Hydrolysis of Titanium liquid and become ash point and itself and the ash point preset compared, obtain comparative result;
Step 4, system are according to comparative result adjustment hydrolysis system working order.
Concrete, in described step 1, the working parameter preset at least comprises the working parameter of temperature regulator one, foreheater well heater, speed regulator one, foreheater agitator, charge pump, pure water pump, temperature regulator two, hydrolyzer well heater, speed regulator two, hydrolyzer agitator and discharging pump.
Concrete, in described step 3, system detects titanium liquid transparence by ultra-violet and visible spectrophotometer, thus calculates the real-time of Hydrolysis of Titanium liquid and turn grey point.
The invention has the beneficial effects as follows: the present invention is premised on plus seed hydrolysis process, on the basis that hydrolysis process is optimized, by PLC control cabinet and ash point decision instrument, achieve full-automation " one-touch " operation of hydrolyzing process, establish the full-automatic technology for hydrolyzing of laboratory feather weight titanium dioxide and equipment integrated system, reduce labor strength and manual operation error, stabilize the size-grade distribution (span is less) of hydrolysis metatitanic acid further.
Accompanying drawing explanation
Fig. 1 is that the present invention is hydrolyzed system construction drawing in integrated system embodiment;
Fig. 2 is that the present invention is hydrolyzed the metatitanic acid granularity schematic diagram being hydrolyzed gained in integrated system embodiment 1;
Fig. 3 is the metatitanic acid granularity schematic diagram that in Fig. 2, homogeneous raw material and parameter repeat to be hydrolyzed gained for the first time;
Fig. 4 is the metatitanic acid granularity schematic diagram that in Fig. 2, homogeneous raw material and parameter second time repeat to be hydrolyzed gained;
Fig. 5 is that the present invention is hydrolyzed the metatitanic acid granularity schematic diagram being hydrolyzed gained in integrated system embodiment 2;
Fig. 6 is the metatitanic acid granularity schematic diagram that in Fig. 5, homogeneous raw material and parameter repeat to be hydrolyzed gained for the first time;
Fig. 7 is the metatitanic acid granularity schematic diagram that in Fig. 5, homogeneous raw material and parameter second time repeat to be hydrolyzed gained;
Fig. 8 is that the present invention is hydrolyzed the metatitanic acid granularity schematic diagram being hydrolyzed gained in integrated system embodiment 3;
Fig. 9 is the metatitanic acid granularity schematic diagram that in Fig. 8, homogeneous raw material and parameter repeat to be hydrolyzed gained for the first time;
Figure 10 is the metatitanic acid granularity schematic diagram that in Fig. 8, homogeneous raw material and parameter second time repeat to be hydrolyzed gained.
Below in conjunction with the embodiment of embodiment, foregoing of the present invention is described in further detail again.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following example.Without departing from the idea case in the present invention described above, the various replacement made according to ordinary skill knowledge and customary means or change, all should comprise within the scope of the invention.
Embodiment
Technical scheme of the present invention is described in detail below in conjunction with drawings and Examples:
The Automated condtrol major part that the present invention is directed to sulfate process titanium dioxide production hydrolyzing process in prior art is still in the even inferior semi-automatic PLC Row control level of medium level, only can reduce the labour intensity of execute-in-place, and the quality of product and the problem of stability can not be guaranteed, a kind of hydrolysis integrated system is provided, as shown in Figure 1, hydrolysis integrated system, comprise workstation, PLC control cabinet, temperature regulator one, foreheater well heater, speed regulator one, foreheater agitator, charge pump, pure water pump, temperature regulator two, hydrolyzer well heater, speed regulator two, hydrolyzer agitator, discharging pump and ash point decision instrument, described workstation is connected with PLC control cabinet, PLC control cabinet is connected with temperature regulator one, speed regulator one, charge pump, pure water pump, temperature regulator two, speed regulator two and discharging pump respectively, temperature regulator one is connected with foreheater well heater, speed regulator one is connected with foreheater agitator, temperature regulator two is connected with hydrolyzer well heater, and speed regulator two is connected with hydrolyzer agitator, described workstation, for setting the working procedure of PLC control cabinet, the working order of monitoring PLC control cabinet, stores PLC history working parameter, described ash puts decision instrument, for detecting titanium liquid transparence, obtaining the change ash point of Hydrolysis of Titanium liquid and itself and default ash point being compared, and comparative result being transferred to PLC control cabinet, described PLC control cabinet, for controlling, also for the working parameter of PLC control cabinet is fed back to workstation according to the working order of comparative result to temperature regulator one, speed regulator one, charge pump, pure water pump, temperature regulator two, speed regulator two and discharging pump of working procedure or ash point decision instrument.The method of work of hydrolysis integrated system, first, user is according to waiting to be hydrolyzed the working parameter and grey point that require to preset hydrolysis integrated system, and system carries out work according to the working parameter preset; Secondly, the real-time working parameter of systems axiol-ogy hydrolysis integrated system, and itself and the working parameter preset are compared, according to comparison information real-time regulating system working order; Then, systems axiol-ogy titanium liquid transparence, obtains the real-time of Hydrolysis of Titanium liquid and becomes ash point and itself and the ash point preset compared, obtain comparative result; Finally, system is according to comparative result adjustment hydrolysis system working order.The present invention is premised on plus seed hydrolysis process, on the basis that hydrolysis process is optimized, by PLC control cabinet and ash point decision instrument, achieve full-automation " one-touch " operation of hydrolyzing process, establish the full-automatic technology for hydrolyzing of laboratory feather weight titanium dioxide and equipment integrated system, reduce labor strength and manual operation error, stabilize the size-grade distribution (span is less) of hydrolysis metatitanic acid further.
Embodiment 1
Titanium liquid TiO is adopted in this example
2196g/l, F value 1.92, Fe/TiO
20.27, batch hydrolysis 5L, crystal seed dosage 2.0% is hydrolyzed experiment.
Input conventional plus seed hydrolysis process controling parameters according to set hydrolysis process at the human-computer interaction interface of workstation, conventional plus seed hydrolysis process controling parameters is more conventional means, does not specifically introduce design parameter value herein.Conventional plus seed hydrolysis process controling parameters includes but not limited to rotating speed and the start and stop of each reactor and tank body agitator motor, the rotating speed of the pumps such as sodium hydroxide solution transferpump, titanium liquid transfering material pump, pure water pump, working time and start and stop, the parameters such as the control temperature of each material and the switch off time point of thermal source.The optimum configurations to temperature regulator one, foreheater well heater, speed regulator one, foreheater agitator, charge pump, pure water pump, temperature regulator two, hydrolyzer well heater, speed regulator two, hydrolyzer agitator, discharging pump and ash point decision instrument is then at least comprised in this example.These optimum configurations are transferred in the default working procedure of PLC by workstation, and PLC control cabinet will carry out Systematical control according to default working procedure.Wherein, for making control more accurate, also comprise control interface one, control interface two and control interface three in system, PLC control cabinet is connected with charge pump by control interface one, be connected with pure water pump by control interface two and be connected with discharging pump by control interface three.For ensureing system works electrical power stabilization, system also comprises ups power, and ups power is connected with workstation and PLC control cabinet respectively.For ensure operator can learn that whether working state of system wrong in real time, described workstation is provided with communication module, systems axiol-ogy PLC control cabinet working order and pre-set work program inconsistent time, issue information warning to mobile terminal.
In this example, grey point value is set as 9.0%.In operational process, ash point decision instrument detects the ash point of current hydrolyzed solution in real time and itself and preset value is compared, feed back to PLC control cabinet, system regulates concrete conventional plus seed hydrolysis process controling parameters in real time according to comparative result, to ensure the size-grade distribution of stable hydrolysis metatitanic acid.Wherein the principle of work of ash point decision instrument is that employing and ultra-violet and visible spectrophotometer detect the transparence of Hydrolysis of Titanium liquid, secondly, calculate the grey point of current hydrolyzed solution according to transparence.
After setting above-mentioned parameter, click on human-computer interaction interface and " automatically run " button, namely system enters automatic running status, and through about 6.5h, hydrolysis terminates, and system is out of service, and solution of anhydrating terminates metatitanic acid and detects.Same raw material and parameter repeat 3 times, metatitanic acid granularity D
50be respectively 2.028 μm, 2.087 μm, 2.065 μm, stability comparatively prior art is good; Span is respectively 1.244,1.254,1.253, narrowly distributing.Specifically see accompanying drawing 2-4.
Embodiment 2
The principle of work of this example is identical with embodiment 1, and its difference is only the difference of hydrolysis material.
Titanium liquid TiO is adopted in this example
2192g/l, F value 1.95, Fe/TiO
20.26, batch hydrolysis 5L, crystal seed dosage 2.0% is hydrolyzed experiment.
Conventional plus seed hydrolysis process controling parameters is inputted at human-computer interaction interface according to set hydrolysis process, in this example, grey point value is set as 6.0%, click on human-computer interaction interface and " automatically run " button, namely system enters automatic running status, and through about 6.5h, hydrolysis terminates, system is out of service, and solution of anhydrating terminates metatitanic acid and detects.Same raw material and parameter repeat 3 times, metatitanic acid granularity D
50be respectively 1.834 μm, 1.910 μm, 1.853 μm, good stability; Span is respectively 1.223,1.224,1.189, narrowly distributing.Specifically see accompanying drawing 5-7.
Embodiment 3
The principle of work of this example is identical with embodiment 1, and its difference is only the difference of hydrolysis material.
Titanium liquid TiO is adopted in this example
2197g/l, F value 1.88, Fe/TiO
20.28, batch hydrolysis 5L, crystal seed dosage 2.0% is hydrolyzed experiment.
Conventional plus seed hydrolysis process controling parameters is inputted at human-computer interaction interface according to set hydrolysis process, ash point value is set as 7.5%, click on human-computer interaction interface and " automatically run " button, namely system enters automatic running status, through about 6.5h, hydrolysis terminates, and system is out of service, and solution of anhydrating terminates metatitanic acid and detects.Same raw material and parameter repeat 3 times, metatitanic acid granularity D
50be respectively 1.728 μm, 1.642 μm, 1.637 μm, good stability; Span is respectively 1.155,1.128,1.268, narrowly distributing.Specifically see accompanying drawing 8-10.
In sum, the present invention is premised on plus seed hydrolysis process, on the basis that hydrolysis process is optimized, by PLC control cabinet and ash point decision instrument, achieve full-automation " one-touch " operation of hydrolyzing process, establish the full-automatic technology for hydrolyzing of laboratory feather weight titanium dioxide and equipment integrated system, reduce labor strength and manual operation error, stabilize the size-grade distribution (span is less) of hydrolysis metatitanic acid further.
Claims (8)
1. be hydrolyzed integrated system, it is characterized in that, comprise workstation, PLC control cabinet, temperature regulator one, foreheater well heater, speed regulator one, foreheater agitator, charge pump, pure water pump, temperature regulator two, hydrolyzer well heater, speed regulator two, hydrolyzer agitator, discharging pump and ash point decision instrument;
Described workstation is connected with PLC control cabinet, PLC control cabinet is connected with temperature regulator one, speed regulator one, charge pump, pure water pump, temperature regulator two, speed regulator two and discharging pump respectively, temperature regulator one is connected with foreheater well heater, speed regulator one is connected with foreheater agitator, temperature regulator two is connected with hydrolyzer well heater, and speed regulator two is connected with hydrolyzer agitator;
Described workstation, for setting the working procedure of PLC control cabinet, the working order of monitoring PLC control cabinet, stores PLC history working parameter;
Described ash puts decision instrument, for detecting titanium liquid transparence, obtaining the change ash point of Hydrolysis of Titanium liquid and itself and default ash point being compared, and comparative result being transferred to PLC control cabinet;
Described PLC control cabinet, for controlling, also for the working parameter of PLC control cabinet is fed back to workstation according to the working order of comparative result to temperature regulator one, speed regulator one, charge pump, pure water pump, temperature regulator two, speed regulator two and discharging pump of working procedure or ash point decision instrument.
2. hydrolysis integrated system according to claim 1, is characterized in that, described ash point decision instrument comprises ultra-violet and visible spectrophotometer.
3. hydrolysis integrated system according to claim 1, it is characterized in that, also comprise control interface one, control interface two and control interface three, PLC control cabinet is connected with charge pump by control interface one, be connected with pure water pump by control interface two and be connected with discharging pump by control interface three.
4. hydrolysis integrated system according to claim 1, is characterized in that, also comprise ups power, and described ups power is connected with workstation and PLC control cabinet respectively.
5. hydrolysis integrated system according to claim 1, is characterized in that, described workstation is provided with communication module, systems axiol-ogy PLC control cabinet working order and pre-set work program inconsistent time, issue information warning to mobile terminal.
6., for the method for work of the hydrolysis integrated system described in claim 1-5 any one, it is characterized in that, comprise the following steps:
Step 1, user are according to waiting to be hydrolyzed the working parameter and grey point that require to preset hydrolysis integrated system, and system carries out work according to the working parameter preset;
The real-time working parameter of step 2, systems axiol-ogy hydrolysis integrated system, and itself and the working parameter preset are compared, according to comparison information real-time regulating system working order;
Step 3, systems axiol-ogy titanium liquid transparence, obtain the real-time of Hydrolysis of Titanium liquid and become ash point and itself and the ash point preset compared, obtain comparative result;
Step 4, system are according to comparative result adjustment hydrolysis system working order.
7. the method for work of hydrolysis integrated system according to claim 6, it is characterized in that, in described step 1, the working parameter preset at least comprises the working parameter of temperature regulator one, foreheater well heater, speed regulator one, foreheater agitator, charge pump, pure water pump, temperature regulator two, hydrolyzer well heater, speed regulator two, hydrolyzer agitator and discharging pump.
8. the method for work of hydrolysis integrated system according to claim 6, is characterized in that, in described step 3, system detects titanium liquid transparence by ultra-violet and visible spectrophotometer, thus calculates the real-time of Hydrolysis of Titanium liquid and turn grey point.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013682A (en) * | 2019-05-05 | 2019-07-16 | 河北工业大学 | A kind of novel nano-titanium dioxide production procedure control device and method |
| CN110054220A (en) * | 2019-06-04 | 2019-07-26 | 中钛集团焦作市裕盛钛业有限公司 | A kind of method for hydrolysis of electronic grade high-purity titanium dioxide |
| CN110554715A (en) * | 2019-10-25 | 2019-12-10 | 攀钢集团攀枝花钢铁研究院有限公司 | RBF neural network-based PID control method for hydrolysis process temperature of titanyl sulfate plus seed crystal |
-
2015
- 2015-11-10 CN CN201510767658.XA patent/CN105271398A/en active Pending
Non-Patent Citations (1)
| Title |
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| 郝琳: "二氧化钛水解过程的系统研究与优化", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013682A (en) * | 2019-05-05 | 2019-07-16 | 河北工业大学 | A kind of novel nano-titanium dioxide production procedure control device and method |
| CN110013682B (en) * | 2019-05-05 | 2024-01-26 | 河北工业大学 | Novel nano titanium dioxide production flow control device and method |
| CN110054220A (en) * | 2019-06-04 | 2019-07-26 | 中钛集团焦作市裕盛钛业有限公司 | A kind of method for hydrolysis of electronic grade high-purity titanium dioxide |
| CN110554715A (en) * | 2019-10-25 | 2019-12-10 | 攀钢集团攀枝花钢铁研究院有限公司 | RBF neural network-based PID control method for hydrolysis process temperature of titanyl sulfate plus seed crystal |
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Application publication date: 20160127 |