CN210481167U - Titanium tetrachloride mud hypergravity separator - Google Patents
Titanium tetrachloride mud hypergravity separator Download PDFInfo
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- CN210481167U CN210481167U CN201921145457.6U CN201921145457U CN210481167U CN 210481167 U CN210481167 U CN 210481167U CN 201921145457 U CN201921145457 U CN 201921145457U CN 210481167 U CN210481167 U CN 210481167U
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Abstract
The utility model discloses a titanium tetrachloride mud hypergravity separator relates to titanium dioxide production technical field, solves the easy jam of current filtration mode, needs frequent shut down to change the sack, still can not effectively get rid of solid impurity's problem. The utility model adopts the technical proposal that: the titanium tetrachloride mud hypergravity separating device comprises a titanium tetrachloride mud storage tank, a hypergravity separator, a clear solution tank and a concentrated slag tank, wherein the hypergravity separator is at least N-level, N is not less than 2 and is an integer; the feed end of the conveying device is connected with the titanium tetrachloride slurry storage tank, the discharge end of the conveying device is connected with the inlet of the first-stage supergravity separator, the clear liquid outlet of the first-stage supergravity separator is connected with the inlet of the next-stage supergravity separator until the Nth-stage supergravity separator, the clear liquid outlet of the Nth-stage supergravity separator is connected to the clear liquid tank, and the slag liquid outlet of each supergravity separator is connected to the concentrated slag tank. The utility model is suitable for a to titanium tetrachloride mud hypergravity separation.
Description
Technical Field
The utility model relates to the technical field of titanium dioxide production, in particular to a titanium tetrachloride mud hypergravity separation device in a titanium tetrachloride production process by a chlorination method.
Background
The technological process of producing titanium tetrachloride by chlorination process mainly includes four procedures of chlorination, dust collection, condensation and refining. In the process for producing the titanium tetrachloride,a certain amount of slag slurry is generated in the dust collection, condensation and refining processes, and the slag slurry is TiCl4Slurry TiCl4The slurry is originated from two aspects, namely, in the dust collection and condensation treatment process, after gas passes through a leaching tower and a condensation tower, TiCl4With TiCl4The near-boiling impurities and other high-boiling impurities are condensed into TiCl4Liquid phase. VOCl produced in the titanium tetrachloride process, on the other hand2Is separated from other impurities generated by distillation and rectification in the form of kettle bottom residue, and the residue also contains most TiCl4。TiCl4The solid substance contained in the slurry has small particle size and density, generally below 5 microns, and the density is slightly larger than that of the liquid TiCl4。
At present, TiCl is treated by combining a thickener and a bag filter4And (5) filtering and separating the slurry. The existing filtration and separation mode has the following defects: firstly, in the filtering process, viscous insoluble substances are attached to the filter cloth, so that the filtering resistance is large, the blockage is easy, and the energy consumption is high. Secondly, the filter cloth bag needs frequent production stop and replacement, the use amount of the cloth bag is large, and the labor environment for cleaning the cloth bag is severe. Thirdly, the solid impurities can not be effectively removed by the filtering mode, so that the distillation kettle in the subsequent titanium tetrachloride working procedure is easy to block.
SUMMERY OF THE UTILITY MODEL
The utility model provides a titanium tetrachloride mud hypergravity separator solves current filter mode and easily blocks up, needs frequent shut down to change the sack, still can not effectively get rid of solid impurity's problem.
The utility model provides a technical scheme that its technical problem adopted is: the titanium tetrachloride mud hypergravity separating device comprises a titanium tetrachloride mud storage tank, a hypergravity separator, a clear solution tank and a concentrated slag tank, wherein the hypergravity separator has at least N stages which are respectively a first stage hypergravity separator to an Nth stage hypergravity separator, and N is not less than 2 and is an integer; the feed end of the conveying device is connected with the titanium tetrachloride slurry storage tank, the discharge end of the conveying device is connected with the inlet of the first-stage supergravity separator, the clear liquid outlet of the first-stage supergravity separator is connected with the inlet of the next-stage supergravity separator until the Nth-stage supergravity separator, the clear liquid outlet of the Nth-stage supergravity separator is connected to the clear liquid tank, and the slag liquid outlet of each supergravity separator is connected to the concentrated slag tank.
Further, the method comprises the following steps: and pressure gauges are respectively arranged at the inlet ends of the supergravity separators.
Specifically, the method comprises the following steps: the pressure gauge is a remote transmission pressure gauge, the conveying device is a separation conveying pump, the separation conveying pump is provided with a variable frequency speed regulating device, and the variable frequency speed regulating device is electrically connected with the remote transmission pressure gauge.
Specifically, the method comprises the following steps: the separation delivery pump and the hypergravity separator are both made of corrosion-resistant alloy materials.
Further, the method comprises the following steps: and the clear liquid outlet and the slag liquid outlet of the at least one stage of the hypergravity separator are connected with sight glasses on pipelines.
Specifically, the method comprises the following steps: the hypergravity separator is 2-grade.
More specifically: the grain size of the particles contained in the effluent liquid of the clear liquid outlet of the first-stage supergravity separator is less than or equal to 5 mm.
Further, the method comprises the following steps: and the clear liquid outlet and the slag liquid outlet of at least one stage of the supergravity separator are respectively provided with a valve.
Specifically, the method comprises the following steps: the valves include electric valves and manual valves.
The utility model has the advantages that: the titanium tetrachloride slurry is separated at least twice through the supergravity separator, so that the problem of frequent production halt and cloth bag replacement is avoided, the slag-slurry separation effect is good, and the weight of the separated titanium tetrachloride slurry is reduced to 30% of the original total weight. The mud in the concentrated slag groove is used for recycling the mud entering the chlorination furnace, so that the mud entering the chlorination furnace is reduced. The conveying device is a separation conveying pump, and the separation conveying pump is controlled by frequency conversion, so that frequency conversion adjustment according to the slag content of the slurry is facilitated. The pipeline of the hypergravity separator is connected with a sight glass, so that the separation effect of the hypergravity separator can be conveniently and directly observed.
Drawings
Fig. 1 is a schematic view of a titanium tetrachloride mud supergravity separation device of the utility model.
Parts, positions and numbers in the drawings: the titanium chloride slurry storage tank comprises a titanium chloride slurry storage tank 1, a first-stage super-gravity separator 21, a second-stage super-gravity separator 22, a clear liquid tank 3, a concentrated slag tank 4, a pressure gauge 5, a separation conveying pump 6, an electric valve 71, a manual valve 72 and a slurry pump 8.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses titanium tetrachloride mud hypergravity separator, including titanium tetrachloride mud storage tank 1, hypergravity separator, clear solution groove 3 and dense sediment groove 4, the at least N level of hypergravity separator, N level hypergravity separator are first order hypergravity separator ~ Nth level hypergravity separator respectively, and N is more than or equal to 2 and is the integer, and for example hypergravity separator is 2 ~ 4 levels. In the embodiment shown in fig. 1, the supergravity separator is 2 stages. The feed end of the conveying device is connected with the titanium tetrachloride slurry storage tank 1, the discharge end of the conveying device is connected with the inlet of the first-stage supergravity separator 21, and the conveying device is used for supplying titanium tetrachloride slurry to the first-stage supergravity separator 21. For example, the conveying device is a separate conveying pump 6, and in order to facilitate the control of the separate conveying pump 6, the separate conveying pump 6 is preferably provided with a variable-frequency speed regulating device.
The clear liquid outlet of the first stage hypergravity separator 21 is connected with the inlet of the next stage hypergravity separator until the Nth stage hypergravity separator, the clear liquid outlet of the Nth stage hypergravity separator is connected to the clear liquid tank 3, and the slag liquid outlet of each hypergravity separator is connected to the concentrated slag tank 4. The first stage of the hypergravity separator 21 is used for primarily separating the titanium tetrachloride slurry, and other stages of the hypergravity separators act on the primarily separated titanium tetrachloride slurry to control the content of the particles in the clear liquid to be less than or equal to 10 mg/L. The clear liquid in the clear liquid tank 3 can be settled by various settling devices such as an inclined tube settling tank, an inclined plate settling tank and the like, and is mechanically intercepted by a filter and the like, so that the content of particulate matters in the clear liquid is less than or equal to 0.5 mg/L. Solid impurities separated by the supergravity separator enter the concentrated slag tank 4 and can be atomized and sprayed into the chlorination furnace for recycling through a slurry pump 8.
When the hypergravity separator is two-stage, as shown in fig. 1, the clear liquid outlet of the first stage hypergravity separator 21 is connected with the inlet of the second stage hypergravity separator 22, and the slag liquid outlets of the first stage hypergravity separator 21 and the second stage hypergravity separator 22 are both connected to the concentrated slag tank 4. In addition, when the hypergravity separator exceeds two stages, the clear liquid outlet of the first stage hypergravity separator is connected with the inlet of the second stage hypergravity separator, the clear liquid outlet of the second stage hypergravity separator is connected with the inlet of the next stage hypergravity separator, and so on to the last stage hypergravity separator, the slag liquid outlet of each hypergravity separator is connected to the concentrated slag groove 4, and the last stage hypergravity separator is the Nth stage hypergravity separator.
In order to facilitate monitoring of the running state of the hypergravity separator, the inlet end of the hypergravity separator is respectively provided with a pressure monitoring device, the pressure monitoring devices are arranged at the inlet end of each stage of the hypergravity separator, the clear liquid outlet of the Nth stage of the hypergravity separator can also be provided with a pressure monitoring device, for example, a pressure gauge 5 is arranged, and in addition, a pressure sensor can also be arranged in the pipeline. The pressure gauge 5 is preferably a remote pressure gauge, which is convenient for acquiring data and provides basic data without automatic control. The remote pressure gauge is electrically connected with a variable-frequency speed regulation device equipped on the separation delivery pump 6, so that the separation delivery pump 6 can be conveniently and correspondingly regulated. The pressure monitoring device transmits the pressure value of each point position to the control system, so that the concentrated monitoring of the operation of titanium tetrachloride slurry entering the supergravity separator is realized. When the pressure at the inlet of the first-stage hypergravity separator 21 is larger than a normal value, which indicates that large-particle impurities in titanium tetrachloride slurry block the first-stage hypergravity separator 21, the operation needs to be suspended, and a valve on a pipeline between a slag liquid outlet of the first-stage hypergravity separator 21 and the concentrated slag groove 5 is opened to discharge the impurities into the concentrated slag groove 5.
Because titanium tetrachloride mud has certain corrosiveness, the parts of the pipeline, the conveying device and the supergravity separator which need to be in direct contact with the titanium tetrachloride mud are made of corrosion-resistant materials, and for example, the parts of the separating and conveying pump 6 and the supergravity separator which are in direct contact with the titanium tetrachloride mud are made of corrosion-resistant alloy materials. In order to facilitate observation of the running state of the supergravity separator, the clear liquid outlet and the slag liquid outlet of the supergravity separator are connected with sight glasses on pipelines.
And valves are respectively arranged on the pipelines between the supergravity separators. Valves may be respectively disposed on the clear liquid outlet and the slag liquid outlet of each stage of gravity separator, or the number of valves may be reduced according to the process conditions, as shown in fig. 1, for example. The valves on the pipelines of the clear liquid outlet and the slag liquid outlet of the supergravity separator can be provided with an electric valve 71 and a manual valve 72 in series. The electric valve 71 is convenient for automatic control, and the manual valve 72 is used for preventing the electric valve 71 from being out of order and being incapable of normal operation, and is convenient for maintenance and maintenance of normal operation of equipment.
According to the embodiment shown in fig. 1, when the hypergravity separator is in two stages, the titanium tetrachloride slurry with the slag content of 2-10% is suitable to be separated. The outlet pressure of the separation conveying pump 6 is 0.05-1.00 MPa. The first stage hypergravity separator 21 is used for primarily separating solid impurities with large particle size in titanium tetrachloride slurry, and the particle size of the effluent of a clear liquid outlet of the first stage hypergravity separator 21 is less than or equal to 5 mm.
Claims (9)
1. The titanium tetrachloride mud hypergravity separator is characterized in that: the titanium tetrachloride slurry purification device comprises a titanium tetrachloride slurry storage tank (1), a supergravity separator, a clear liquid tank (3) and a concentrated slag tank (4), wherein the supergravity separator is at least N stages, namely a first stage supergravity separator (21) to an Nth stage supergravity separator, and N is not less than 2 and is an integer; the feed end of the conveying device is connected with the titanium tetrachloride slurry storage tank (1), the discharge end of the conveying device is connected with the inlet of the first-stage supergravity separator (21), the clear liquid outlet of the first-stage supergravity separator (21) is connected with the inlet of the next-stage supergravity separator until the Nth-stage supergravity separator, the clear liquid outlet of the Nth-stage supergravity separator is connected to the clear liquid tank (3), and the slag liquid outlet of each supergravity separator is connected to the concentrated slag tank (4).
2. The titanium tetrachloride mud hypergravity separating device according to claim 1, characterized in that: and the inlet ends of the supergravity separators are respectively provided with a pressure gauge (5).
3. The titanium tetrachloride mud hypergravity separating device according to claim 2, characterized in that: the pressure gauge (5) is a remote transmission pressure gauge, the conveying device is a separation conveying pump (6), the separation conveying pump (6) is provided with a variable frequency speed regulating device, and the variable frequency speed regulating device is electrically connected with the remote transmission pressure gauge.
4. The titanium tetrachloride mud hypergravity separating device according to claim 3, characterized in that: the separation delivery pump (6) and the hypergravity separator are both made of corrosion-resistant alloy materials.
5. The titanium tetrachloride mud hypergravity separating device according to any one of claims 1 to 4, characterized in that: and the clear liquid outlet and the slag liquid outlet of the at least one stage of the hypergravity separator are connected with sight glasses on pipelines.
6. The titanium tetrachloride mud hypergravity separating device according to any one of claims 1 to 4, characterized in that: the hypergravity separator is 2-4 grades.
7. The titanium tetrachloride mud hypergravity separating device according to claim 6, characterized in that: the grain diameter of the effluent of the clear liquid outlet of the first-stage hypergravity separator (21) is less than or equal to 5 mm.
8. The titanium tetrachloride mud hypergravity separating device according to any one of claims 1 to 4, characterized in that: and the clear liquid outlet and the slag liquid outlet of at least one stage of the supergravity separator are respectively provided with a valve.
9. The titanium tetrachloride mud hypergravity separating device according to claim 8, characterized in that: the valve comprises an electric valve (71) and a manual valve (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145457.6U CN210481167U (en) | 2019-07-19 | 2019-07-19 | Titanium tetrachloride mud hypergravity separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145457.6U CN210481167U (en) | 2019-07-19 | 2019-07-19 | Titanium tetrachloride mud hypergravity separator |
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| CN210481167U true CN210481167U (en) | 2020-05-08 |
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| CN201921145457.6U Expired - Fee Related CN210481167U (en) | 2019-07-19 | 2019-07-19 | Titanium tetrachloride mud hypergravity separator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114524579A (en) * | 2022-01-25 | 2022-05-24 | 安尔达技术(北京)有限责任公司 | Comprehensive utilization and treatment method for sewage |
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2019
- 2019-07-19 CN CN201921145457.6U patent/CN210481167U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114524579A (en) * | 2022-01-25 | 2022-05-24 | 安尔达技术(北京)有限责任公司 | Comprehensive utilization and treatment method for sewage |
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Granted publication date: 20200508 Termination date: 20210719 |