CN211837440U - Titanium white powder continuous dispersion device - Google Patents
Titanium white powder continuous dispersion device Download PDFInfo
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- CN211837440U CN211837440U CN201922435485.8U CN201922435485U CN211837440U CN 211837440 U CN211837440 U CN 211837440U CN 201922435485 U CN201922435485 U CN 201922435485U CN 211837440 U CN211837440 U CN 211837440U
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Abstract
The utility model discloses a can reduce intensity of labour, improve production efficiency's continuous dispersion devices of titanium white powder, it includes thick liquids storage tank, dispersant metering tank, dispersion alkali metering tank, still includes the dispersion tank that is small in the thick liquids storage tank, the export of thick liquids storage tank and the thick liquids entry linkage of dispersion tank, the export of dispersant metering tank is through the dispersant entry linkage of first control valve with the dispersion tank, and the export of dispersion alkali metering tank is through the dispersion alkali entry linkage of second control valve with the dispersion tank, the dispersion tank still disposes online pH meter, online pH meter is used for real time control the aperture of second control valve, the thick liquids flowmeter has been arranged on the pipeline between thick liquids storage tank and the dispersion tank, and the thick liquids flowmeter is used for real time control the aperture of first control valve. The utility model discloses change intermittent type disperse mode to continuous disperse mode, utilize the dispersion tank of small volume to realize the instantaneous completion of dispersion, can guarantee the dispersion effect, can improve output to the rear end equipment feed in succession.
Description
Technical Field
The utility model relates to a titanium white powder dispersion devices, especially a titanium white powder dispersion devices that can disperse in succession.
Background
The titanium dioxide dispersing device is used for dispersing the titanium dioxide slurry, so that the titanium dioxide slurry can be uniformly coated.
At present, titanium dioxide dispersing devices all adopt an intermittent operation mode, as shown in fig. 1, the titanium dioxide dispersing device comprises a titanium dioxide slurry storage tank with a stirring function, the storage tank is used as a dispersing device, after a certain amount of titanium dioxide slurry is added into the titanium dioxide slurry storage tank, feeding is stopped, the certain amount of slurry is called a tank of slurry in industry, the concentration of the slurry in the tank is sampled and analyzed, the adding amount of a dispersing agent and the adding amount of the dispersing agent (m) are calculated according to the concentration of the slurry3) Amount of slurry (m)3) Slurry concentration (kg/m)3) Dispersant addition ratio (%)/dispersant concentration (kg/m)3Depending on the pH control requirements, depending on the slurry amount, slurry concentration and dispersant addition, dispersant concentration, the approximate amount of dispersing base required for this tank can also be determined experimentally and by historical statistical data.
For a tank of materials, the existing dispersing device is disposed in such a way that after the titanium dioxide slurry is fed, the second control valve is opened, the dispersing alkali close to but less than the amount required by an average tank of materials is added into the slurry storage tank according to experience, the adding amount of the dispersing agent is calculated, the dispersing agent is gradually added into the slurry storage tank through the dispersing agent metering tank of the first control valve controlled by the dispersing agent flowmeter, for example, all the dispersing agent required by the tank of materials is uniformly added within about 15 minutes, after the adding is completed, the first control valve is closed, the slurry storage tank is stirred and mixed, after a period of dispersion, for example, half an hour, the pH value is sampled and analyzed, according to the measured pH value, a small amount of dispersing alkali is added for fine adjustment, the pH value of each tank of materials is usually measured for 4-5 times, and until the detection reaches the process requirements, the materials are conveyed to the rear-end equipment for the next, one pot of material takes approximately 2 hours from the completion of the addition of dispersant to the discharge.
Because the pH value needs to be manually sampled and analyzed in the intermittent dispersion process, and the addition of the dispersion alkali needs to be manually adjusted, the labor intensity is higher. When the amount of the rear end is large, the duration of the dispersing process is long, and insufficient slurry supply occurs, which affects the productivity. To reduce this effect requires the use of several slurry reservoirs at the same time.
SUMMERY OF THE UTILITY MODEL
In order to reduce labor intensity and improve production efficiency, the utility model aims to solve the technical problem that a titanium white powder continuous dispersion device is provided.
The utility model provides a technical scheme that its technical problem adopted is: titanium white powder continuous dispersion device, including thick liquids storage tank, dispersant metering tank, dispersion alkali metering tank, still include the dispersion tank that the volume is less than the thick liquids storage tank, the export of thick liquids storage tank and the thick liquids entry linkage of dispersion tank, the export of dispersant metering tank is through the dispersant entry linkage of first control valve with the dispersion tank, and the export of dispersion alkali metering tank is through the dispersion alkali entry linkage of second control valve with the dispersion tank, the dispersion tank still disposes online pH meter, online pH meter is used for real time control the aperture of second control valve, the thick liquids flowmeter has been arranged on the pipeline between thick liquids storage tank and the dispersion tank, and the thick liquids flowmeter is used for real time control the aperture of first control valve.
There is corresponding relation between the addition of amount based on titanium white powder thick liquids and the addition of dispersant, the utility model discloses there is an alternative scheme in addition, promptly: titanium white powder continuous dispersion device, including thick liquids storage tank, dispersant metering tank, dispersion alkali metering tank, still include the dispersion tank that the volume is less than the thick liquids storage tank, the export of thick liquids storage tank and the thick liquids entry linkage of dispersion tank, the export of dispersant metering tank is through the dispersant entry linkage of first control valve with the dispersion tank, and the export of dispersion alkali metering tank is through the dispersion alkali entry linkage of second control valve with the dispersion tank, the dispersion tank still disposes online pH meter, the signal of online pH meter is used for real time control the aperture of second control valve, the dispersant flowmeter has been arranged on the pipeline between dispersant metering tank and the dispersion tank, and the dispersant flowmeter is used for real time control the aperture of first control valve.
Further, a dispersed alkali flow meter is arranged on a pipeline between the dispersed alkali metering tank and the dispersing tank.
Further, the concentration detection result of the slurry storage tank is used as an input signal for controlling the opening degree of the first control valve.
The utility model has the advantages that: the intermittent dispersion mode of large-volume titanium dioxide slurry is changed into the continuous dispersion mode of small-volume titanium dioxide slurry, a small amount of titanium dioxide slurry, a dispersing agent and dispersing alkali in matched amount are added into a small-volume dispersion tank at the same time, instantaneous completion of dispersion is achieved, the dispersion effect is guaranteed, meanwhile, manual detection is replaced by on-line pH detection, the labor intensity is reduced, continuous feeding can be carried out on rear-end equipment, and the yield is improved.
Drawings
FIG. 1 is a schematic structural diagram of a conventional titanium dioxide intermittent dispersing device.
FIG. 2 is a schematic structural diagram of one embodiment of the titanium dioxide continuous dispersing device of the present invention.
FIG. 3 is a schematic structural diagram of another embodiment of the titanium dioxide continuous dispersing device of the present invention.
Labeled as: 1-slurry storage tank, 2-pump, 3-slurry flowmeter, 4-dispersant metering tank, 5-first control valve, 6-dispersant flowmeter, 7-dispersed alkali metering tank, 8-second control valve, 9-dispersed alkali flowmeter, 10-dispersed tank, 11-online pH meter and 12-back-end equipment.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 2, the utility model discloses a continuous dispersion devices of titanium white powder includes thick liquids storage tank 1, dispersant metering tank 4, dispersion alkali metering tank 7, still include the dispersion tank 10 that the volume is less than thick liquids storage tank 1, utilize pump 2 to go into dispersion tank 10 with the thick liquids continuous pump of thick liquids storage tank 1 to monitor its instantaneous flow by thick liquids flowmeter 3, the export of dispersant metering tank 4 is through the dispersant entry linkage of first control valve 5 with dispersion tank 10, the export of dispersion alkali metering tank 7 is through the dispersion alkali entry linkage of second control valve 8 with dispersion tank 10, dispersion tank 10 still disposes online pH meter 11, online pH meter 11 is used for real time control the aperture of second control valve 8, the aperture of first control valve 5 is controlled by thick liquids flowmeter 3 or the dispersant flowmeter 6 of arranging on the pipeline between dispersant metering tank 4 and dispersion tank 10. The on-line pH meter 11 is similar to a flow meter and is a commercially available instrument.
The instantaneous flow of thick liquids is surveyed by thick liquids flowmeter 3, the utility model discloses the same part with prior art lies in all needing to detect thick liquids concentration, according to the addition with adjustment dispersant. The real-time adding amount of the dispersing agent and the opening of the first control valve 5 have a determined corresponding relationship under the condition of determining the specification parameters of the valve, and the real-time adding amount (instantaneous flow) of the dispersing agent is determined according to the following formula and then the opening of the valve is adjusted: real-time addition amount m of dispersant3Instantaneous flow of slurry (m ═ h ═3(h) slurry concentration (kg/m)3) Dispersant addition ratio (%)/dispersant concentration (kg/m)3) (ii) a The adjustment of the second control valve 8 by the on-line pH meter 11 is realized by decreasing the opening of the second control valve 8 when the measured pH value of the slurry flowing out of the dispersion tank 10 is higher than a certain high limit value and increasing the opening of the second control valve 8 when the measured pH value is lower than a certain low limit value, and the specific control ratio formula can be adjusted and optimized according to the required actual process parameters.
Instantaneous flow can calculate and obtain the accumulative flow for in assessing a longer period the utility model discloses the operational aspect of device also can revise or optimize corresponding real time control's formula in view of the above, in order to obtain the more stable product of quality.
Example 1:
as shown in figure 2, a titanium dioxide continuous dispersing device comprises a slurry storage tank 1, a dispersant metering tank 4, a dispersed alkali metering tank 7 and a dispersed tank 10 with the volume greatly smaller than that of the slurry storage tank 1, wherein an outlet of the slurry storage tank 1 is connected with a slurry inlet of the dispersed tank 10 through a pump 2 and a slurry flowmeter 3, an outlet of the dispersant metering tank 4 is connected with a dispersant inlet of the dispersed tank 10 through a first control valve 5 and a dispersant flowmeter 6 in sequence, a concentration detection result of the slurry storage tank 1 is used as an input signal for controlling the opening of the first control valve 5, meanwhile, the slurry flowmeter 3 is used for controlling the opening of the first control valve 5 in real time, an outlet of the dispersed alkali metering tank 7 is connected with a dispersed alkali inlet of the dispersed tank 10 through a second control valve 8 and a dispersed alkali flowmeter 9 in sequence, an outlet pipeline between the dispersed tank 10 and a rear-end device 12 is provided with an online pH meter 11, the signal of the on-line pH meter 11 is used to control the opening of the second control valve 8 in real time.
The apparatus of comparative application example 1 (described as continuous dispersion in table 1) was compared with the apparatus shown in fig. 1 (described as batch dispersion in table 1) used in the background art to perform dispersion treatment on titanium dioxide slurry, and the measured dispersion index (blackman number) of titanium dioxide oil was compared with that of titanium dioxide slurry under otherwise unchanged production conditions.
TABLE 1 comparison of oily Dispersion Performance before and after improvement in the final product
The results show that the titanium dioxide continuous dispersing device is feasible, and meanwhile, the average slurry processing capacity is improved by about 15 percent.
Example 2:
as shown in fig. 3, the structure of a titanium dioxide continuous dispersing device is the same as that of embodiment 1, but the slurry flowmeter 3 is used to control the dispersant flowmeter 6 first, and then the dispersant flowmeter 6 controls the opening of the first control valve 5 in real time, and the valve is controlled according to the flow of the dispersant, so that the current valve control logic is not changed, and the device is convenient to use.
The apparatus of comparative application example 2 (described as continuous dispersion in table 2) was compared with the apparatus shown in fig. 1 (described as batch dispersion in table 2) used in the background art to perform dispersion treatment on titanium dioxide slurry, and the measured dispersion index (blackman number) of titanium dioxide oil was compared with that of the apparatus used in the background art without changing the production conditions.
TABLE 2 comparison of oily Dispersion Performance before and after improvement of the final product
The results show that the titanium dioxide continuous dispersing device is feasible, and meanwhile, the average slurry processing capacity is improved by about 15 percent. It should also be noted that in the present invention, the term "tank" in the name of storage tank, metering tank, etc. is to be understood as a container.
Claims (4)
1. Titanium white powder continuous dispersion device, including thick liquids storage tank (1), dispersant metering tank (4), dispersion alkali metering tank (7), characterized by: still include dispersion tank (10) that the volume is less than slurry storage tank (1), the export of slurry storage tank (1) and the thick liquids entry linkage of dispersion tank (10), the export of dispersant metering tank (4) is connected through the dispersant entry of first control valve (5) with dispersion tank (10), and the export of dispersion alkali metering tank (7) is connected through the dispersion alkali entry of second control valve (8) with dispersion tank (10), dispersion tank (10) still dispose online pH meter (11), the signal of online pH meter (11) is used for real-time control the aperture of second control valve (8), slurry flowmeter (3) have been arranged on the pipeline between slurry storage tank (1) and dispersion tank (10), and slurry flowmeter (3) are used for real-time control the aperture of first control valve (5).
2. Titanium white powder continuous dispersion device, including thick liquids storage tank (1), dispersant metering tank (4), dispersion alkali metering tank (7), characterized by: still include dispersion tank (10) that the volume is less than slurry storage tank (1), the export of slurry storage tank (1) and the thick liquids entry linkage of dispersion tank (10), the export of dispersant metering tank (4) is connected through the dispersant entry of first control valve (5) with dispersion tank (10), the export of dispersion alkali metering tank (7) is connected through the dispersion alkali entry of second control valve (8) with dispersion tank (10), dispersion tank (10) still dispose online pH meter (11), the signal of online pH meter (11) is used for real-time control the aperture of second control valve (8), dispersant flowmeter (6) have been arranged on the pipeline between dispersant metering tank (4) and dispersion tank (10), dispersant flowmeter (6) are used for real-time control the aperture of first control valve (5).
3. A titanium dioxide continuous dispersing apparatus according to claim 1 or 2, characterized in that: and a dispersed alkali flow meter (9) is arranged on a pipeline between the dispersed alkali metering tank (7) and the dispersing tank (10).
4. A titanium dioxide continuous dispersing apparatus according to claim 1 or 2, characterized in that: the concentration detection result of the slurry storage tank (1) is used as an input signal for controlling the opening degree of the first control valve (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922435485.8U CN211837440U (en) | 2019-12-30 | 2019-12-30 | Titanium white powder continuous dispersion device |
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| CN201922435485.8U CN211837440U (en) | 2019-12-30 | 2019-12-30 | Titanium white powder continuous dispersion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259892A (en) * | 2021-12-30 | 2022-04-01 | 宜宾丝丽雅股份有限公司 | ZnO solution blending process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259892A (en) * | 2021-12-30 | 2022-04-01 | 宜宾丝丽雅股份有限公司 | ZnO solution blending process |
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