CN105509784A - Simulated testing apparatus for circulating pipeline and TiCl4-vanadium-removing pipeline blockage condition testing method - Google Patents
Simulated testing apparatus for circulating pipeline and TiCl4-vanadium-removing pipeline blockage condition testing method Download PDFInfo
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- CN105509784A CN105509784A CN201510849366.0A CN201510849366A CN105509784A CN 105509784 A CN105509784 A CN 105509784A CN 201510849366 A CN201510849366 A CN 201510849366A CN 105509784 A CN105509784 A CN 105509784A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a simulated testing apparatus for a circulating pipeline and a TiCl4-vanadium-removing pipeline blockage condition testing method. Production of a circulating pipeline is simulated to optimize a production process. Te testing apparatus comprises a storage tank and a circulating pump; a loading hopper is arranged on the storage tank; the inlet end of the circulating pump is arranged in the storage tank and the outlet end of the circulating pump is connected with a pipeline connected to the storage tank to form a circulating loop; and a flow testing unit, a pressure testing unit, a viscosity testing unit, and a temperature testing unit are arranged on the circulating loop. A basis is provided for production process optimization by simulating a similar production process. In addition, the testing method based on the apparatus is characterized in that coarse titanium tetrachloride is placed in the storage tank, heating is carried out and the coarse titanium tetrachloride circulates in the storage tank and the pipeline; a vanadium-removing reagent is added; the operation of a heat exchanger in the titanium tetrachloride purification process is simulated; and thus the testing researches on vanadium-removing residues obtained by using different vanadium-removing reagents as well as effects on the heat exchanger by vanadium-removing residues with different concentrations are developed.
Description
Technical field
The present invention relates to a kind of device to circulating pipe production process simulation test, and one is to TiCl
4the vanadium residue that removes obtained except vanadium carries out simulated production, and to the method that line clogging condition is tested.
Background technology
At TiCl
4in production, organism, except vanadium process for refining because having clear superiority on production cost and product quality, has become the prevailing technology of titanium tetrachloride vanadium removal.But, organism removes vanadium process for refining and also there is other shortcomings do not had except vanadium technique, what organic reagent generation after generation is except vanadium reaction was thick removes vanadium residue, the problem producing two aspects after vanadium residue enters the refining circulation system should be removed: on the one hand except vanadium residue can be attached on container inner wall or inner-walls of duct, be difficult to remove, have a strong impact on heat transfer; Easily should scab on equipment pipe and chamber wall except vanadium residue on the other hand, and especially easily cause heat exchanger tube to block, finally cause stop production to overhaul.
Research shows, the concentration except vanadium residue in the refining circulation system and character determine the speed and degree that to bond in system except vanadium residue and scab, therefore, what grasp was obtained except vanadium reagents by difference removes vanadium residue under certain processing parameter to the impact of the circulation system, for optimization organic reagent selection scheme with except the control of vanadium mud solid content, even vanadium process for refining tool is removed to improvement organism and be of great significance.
At present, there is no can on difference except vanadium reagents obtain except vanadium residue certain under processing parameter on the circulation system in the impact that runs of heat interchanger carry out the device of simulation test, especially to the device that circulating line blocking condition is tested.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of circulating line simulating test device, by simulation loop formula pipe production process, to be optimized production run according to test result.
The technical solution adopted for the present invention to solve the technical problems is: circulating line simulating test device, comprise holding tank and ebullator, described holding tank arranges loading hopper, the inlet end of described ebullator is positioned at holding tank, one end of the endpiece connecting tube of ebullator, the other end of pipeline is endpiece and is connected in holding tank.
By ebullator, the material be loaded in holding tank is pumped into pipeline, then be back in holding tank, form closed circuit, simulate similar production run.Monitor the change of the process values such as flow, pressure, viscosity in pipeline and holding tank simultaneously, the dynamic process of whole simulation loop operational process can be obtained.
Further, described holding tank is closed structure, is provided with stirrer in holding tank, and the bottom land of holding tank arranges the discharge port of band valve.For the material needing to stir, stirrer can make material in holding tank more even.Discharge port is used for the material in holding tank to drain.
Further, described holding tank arranges heating arrangement, pipeline arranged outside heat-proof device or attemperator.
Further, liquid level gauge, thermometer and viscosity meter are installed in described holding tank, pipeline also arranges flowmeter and pressure gauge.
Further, described pipeline at least connecting one section can roll over short tube, can roll over short tube and be wound around heat-proof device or attemperator outward.Such as, can roll over short tube two ends by Flange joint on pipeline, after simulation test completes, be convenient to roll over short tube and pull down, observation can roll over the scabbing of material in short tube, adhesion condition.
Further, described pipeline is arranged the inflatable mouth of band valve.
Further, described ebullator is submerged pump, and submerged pump is installed on the bottom land in holding tank.
The present invention also provides a kind of TiCl undertaken by any one circulating line simulating test device above-mentioned
4except vanadium line clogging condition test method, by the operation of heat interchanger in simulation titanium tetrachloride process for refining, carry out the different experimental study except vanadium residue heat exchanger influence on system operation removing vanadium residue and variable concentrations obtained except vanadium reagents.TiCl
4except vanadium line clogging condition test method, comprise the following steps:
A, crude titanic chloride is loaded in holding tank, start heating arrangement and target setting temperature;
B, startup ebullator, crude titanic chloride, at holding tank and pipeline Inner eycle, forms the circulation system;
C, add except vanadium reagents from loading hopper, keep the material Homogeneous phase mixing in holding tank, keep circulation system continuous service, and monitor temperature, pressure, viscosity, the flow of cyclic process;
After D, circulation, the circulation system is out of service, carries out inert gas blowback by inflatable mouth;
E, unload pipeline, and observe inner-walls of duct residue adhesion condition;
Wherein, described holding tank is closed structure, and holding tank arranges heating arrangement, pipeline arranged outside heat-proof device or attemperator, pipeline is also arranged the inflatable mouth of band valve.
Particularly, in described step D, described inert gas is nitrogen.Nitrogen purges the titanium tetrachloride liquid be used in emptying pipe.
Particularly, described heating arrangement is tracklayer heater, and the target temperature in steps A is 135 DEG C.
Particularly, described pipeline connects one section can roll over short tube, can roll over short tube two ends by Flange joint on pipeline, can roll over short tube and be wound around attemperator outward; In described step e, under dismounting, short tube two ends can be rolled over, and observation can roll over short tube inwall residue adhesion condition.
Maybe can roll over short tube inwall residue adhesion condition and pressure changing by analysis conduit, the attachment of different solid content in pipeline and the model that scabs can be set up, then optimize reagent selection scheme by comparative analysis and except vanadium mud solid content control program.
The invention has the beneficial effects as follows: circulating line simulating test device is applicable to, to circulating pipe production process simulation test, contribute to carrying out simulated production, monitor production process, for production technology optimization provides reference frame by test.
TiCl
4except vanadium line clogging condition test method, by the operation of heat interchanger in simulation titanium tetrachloride process for refining, carry out the different experimental study except vanadium residue heat exchanger influence on system operation removing vanadium residue and variable concentrations obtained except vanadium reagents.Thus select preferably except vanadium reagents with except vanadium mud range of solid content; effectively can prevent the blocking of heat interchanger in actual production process; and then reduce the fund of maintenance workload and the input of manpower; ensure that production trouble-free operation and improving on the basis of production capacity, also protect the healthy of workman.
Accompanying drawing explanation
Fig. 1 is the structural representation of circulating line simulating test device of the present invention.
Parts, position and numbering in figure: holding tank 1, ebullator 2, pipeline 3, heating arrangement 4, loading hopper 5, inflatable mouth 6, flowmeter 7, pressure gauge 8, thermometer 9, viscosity meter 10, short tube 11, discharge port 12 can be rolled over.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, circulating line simulating test device of the present invention, comprise holding tank 1 and ebullator 2, holding tank 1 is arranged loading hopper 5, loading hopper 5 is for replenishment cycles material or other adjuvants, and the inlet end of ebullator 2 is positioned at holding tank 1, one end of the endpiece connecting tube 3 of ebullator 2, the other end of pipeline 3 is endpiece and is connected in holding tank 1, forms the closed circuit closed.By ebullator 2, the material be loaded in holding tank 1 is pumped into pipeline 3, then be back in holding tank 1, simulate similar production run.Ebullator 2 is submerged pump, and preferred corrosion resistant submerged pump, is installed on the bottom land in holding tank 1.
Holding tank 1 is closed structure, impacts holding tank 1 internal environment to avoid external environment.The bottom land of holding tank 1 arranges the discharge port 12 of band valve, and discharge port 12 is for draining the material in holding tank 1.Holding tank 1 and pipeline 3 form the circulation system, in order to monitor the procedure parameter of simulation test, in the circulation system, also comprising pick-up unit, comprising holding tank 1 level monitoring, the pressure, temperature, viscosity etc. of the circulation system, to monitor the dynamic process of whole simulation loop operational process.Particularly, liquid level gauge, thermometer 9 and viscosity meter 10 are installed in holding tank 1, pipeline 3 are also arranged flowmeter 7 and pressure gauge 8.For the material needing to stir, be provided with stirrer in holding tank 1, stirrer can make material in holding tank 1 more even, avoids material layering phenomenon.
Holding tank 1 is arranged heating arrangement 4, by the temperature control system of heating arrangement 4 material in holding tank 1 heated or be incubated, to simulate in requisition for heating or the production run maintaining uniform temperature.Particularly, the tracklayer heater of the peripheral winding screw shape of accumulator tank 1, the material be used in heated storage groove 1, makes it reach and maintains predetermined temperature.Because the material in pipeline in cyclic process 3 is less, can at pipeline 3 arranged outside heat-proof device or attemperator, specifically can decide according to the length of pipeline 3: when the length of pipeline 3 is longer, also can at pipeline 3 arranged outside heating arrangement, such as tracklayer heater; When the length of pipeline 3 is shorter, can directly at pipeline 3 arranged outside attemperator.
After simulation test completes, need to observe the material adhesion condition of pipeline 3 inwall, pipeline 3 at least connects one section and can roll over short tube 11, can roll over that short tube 11 is outer is wound around heat-proof device or attemperator.Such as, short tube 11 two ends can be rolled over by Flange joint on pipeline 3, after circulating line 3 simulation test completes, short tube 11 can be rolled over and pull down, be convenient to observe and can roll over the scabbing of material in short tube 11, adhesion condition.Pipeline 3 still arranges valve, pipeline 3 is arranged the inflatable mouth 6 of band valve, by being blown into the residual material of gas (especially inert gas, as nitrogen) emptying pipe 3 when needs.
The present invention also provides a kind of and carries out TiCl by above-mentioned circulating line simulating test device
4except the method for vanadium line clogging condition test, comprise the following steps:
A, load in holding tank 1 by crude titanic chloride, start heating arrangement 4 and target setting temperature, choosing of target temperature determines according to the technique of simulation test, and crude titanic chloride is all heated to target temperature;
B, startup ebullator 2, crude titanic chloride, at holding tank 1 and pipeline 3 Inner eycle, forms the circulation system;
C, add except vanadium reagents from loading hopper 5, in order to study the different impact run except vanadium residue heat exchanger obtained except vanadium reagents, can fractional test different except vanadium reagents; Keep the material Homogeneous phase mixing of in holding tank 4, such as, keep material even by the stirrer be installed in holding tank 1, keep circulation system continuous service, and monitor the temperature of cyclic process, pressure, viscosity, flow and other procedure parameters;
After D, circulation, the circulation system is out of service, carries out inert gas blowback, particularly, carry out nitrogen blowback, for the titanium tetrachloride liquid in emptying pipe 3 by inflatable mouth 6 by inflatable mouth 6;
E, directly unload pipeline 3, and observe inner-walls of duct residue adhesion condition; Or short tube 11 two ends can be rolled under dismounting, and observation can roll over short tube 11 inwall residue adhesion condition.
According to said method, can be and follow-up maybe can roll over short tube inwall residue adhesion condition and pressure changing by analysis conduit, set up the attachment of different solid content in pipeline and the model that scabs, can be optimized by comparative analysis provides foundation except vanadium reagents selection scheme with except researchs such as vanadium mud solid content control programs.
Below provide two embodiments to TiCl
4except the method for vanadium line clogging condition test is described.Wherein, the volume of holding tank 1 is 500L, and the power of ebullator 2 is 1.5kW, lift is 8.5m, flow 8m
3/ h, the outer heating arrangement 4 be wound around of holding tank 1 is tracklayer heater, and power is 20kW.
Embodiment 1: carry out oleic acid and remove the test of vanadium residue circular flow situation as except vanadium reagents gained
1. 400L crude titanic chloride is loaded in holding tank 1; 2. arranging tracklayer heater heating target temperature is 135 DEG C, and is heated to Offered target temperature; 3. starting ebullator 2 makes crude titanic chloride at system Inner eycle; 4. slowly add 21kg oleic acid (3% solid content) from loading hopper 5, adding speed is 50g/min, and monitors temperature, pressure, viscosity, the flow of cyclic process; 5. after 10 days, the circulation system is out of service, starts nitrogen blowback; 6. unload and can roll over short tube 11 two ends, and observation can roll over short tube 11 inwall residue adhesion condition.
The attachment model of residue in pipeline can be set up according to above-mentioned test result, and then show that oleic acid is as removing vanadium reagents, generate except vanadium residue is can attachment in switching heat-exchanger simulative tube road and the rule that scabs, thus carry out oleic acid as the feasibility assessment except vanadium reagents.
Example 2: carry out different solid waste content and circulation system ruuning situation is tested
1. 400L crude titanic chloride is loaded in holding tank 1; 2. arranging tracklayer heater heating target temperature is 135 DEG C, and is heated to Offered target temperature; 3. starting ebullator 2 makes crude titanic chloride at system Inner eycle; 4. slowly add except vanadium reagents from loading hopper 5, adding speed is 50g/min, is 70kg (final 10% solid content), adds in batches except vanadium reagents adds total amount, 3 days, every batch of interval, every batch of addition 7kg; 5. after 30 days, the circulation system is out of service, starts nitrogen blowback; 6. unload and can roll over short tube 11 two ends, and observation can roll over short tube 11 inwall residue adhesion condition.
The attachment model of different solid content in pipeline can be set up according to above-mentioned test result, and then show that different solid content is except vanadium residue is can attachment in switching heat-exchanger simulative tube road and the rule thus obtain preferably except vanadium is except vanadium solid waste content control program of scabbing.
Claims (10)
1. circulating line simulating test device, it is characterized in that: comprise holding tank (1) and ebullator (2), described holding tank (1) is arranged loading hopper (5), the inlet end of described ebullator (2) is positioned at holding tank (1), one end of the endpiece connecting tube (3) of ebullator (2), the other end of pipeline (3) is endpiece and is connected in holding tank (1).
2. circulating line simulating test device as claimed in claim 1, it is characterized in that: described holding tank (1) is closed structure, holding tank is provided with stirrer in (1), and the bottom land of holding tank (1) arranges the discharge port (12) of band valve.
3. circulating line simulating test device as claimed in claim 1, is characterized in that: described holding tank (1) is arranged heating arrangement (4), pipeline (3) arranged outside heat-proof device or attemperator.
4. circulating line simulating test device as claimed in claim 1, it is characterized in that: liquid level gauge, thermometer (9) and viscosity meter (10) are installed in described holding tank (1), pipeline (3) is also arranged flowmeter (7) and pressure gauge (8).
5. circulating line simulating test device as claimed in claim 1, is characterized in that: described pipeline (3) at least connects one section and can roll over short tube (11), can roll over short tube (11) and be wound around heat-proof device or attemperator outward.
6. circulating line simulating test device as claimed in claim 1, is characterized in that: the inflatable mouth (6) described pipeline (3) being arranged band valve.
7.TiCl
4except vanadium pipeline (3) blocking condition test method, it is characterized in that: carry out TiCl by the circulating line simulating test device described in the arbitrary claim of the claims 1 to 6
4except vanadium line clogging condition test, comprise the following steps:
A, crude titanic chloride is loaded in holding tank (1), start heating arrangement (4) and target setting temperature;
B, startup ebullator (2), crude titanic chloride, at holding tank (1) and pipeline (3) Inner eycle, forms the circulation system;
C, add except vanadium reagents from loading hopper (5), keep the material Homogeneous phase mixing in holding tank (1), keep circulation system continuous service, and monitor temperature, pressure, viscosity, the flow of cyclic process;
After D, circulation, the circulation system is out of service, carries out inert gas blowback by inflatable mouth (6);
E, unload pipeline (3), and observe pipeline (3) inwall residue adhesion condition;
Wherein, described holding tank (1) is closed structure, holding tank (1) is arranged heating arrangement (4), pipeline (3) arranged outside heat-proof device or attemperator, pipeline (3) is also arranged the inflatable mouth (6) of band valve.
8. TiCl as claimed in claim 7
4except vanadium pipeline (3) blocking condition test method, it is characterized in that: in described step D, described inert gas is nitrogen.
9. TiCl as claimed in claim 7
4except vanadium pipeline (3) blocking condition test method, it is characterized in that: described heating arrangement (4) is tracklayer heater, the target temperature in steps A is 135 DEG C.
10. TiCl as claimed in claim 7
4except vanadium pipeline (3) blocking condition test method, it is characterized in that: the upper connection one section of described pipeline (3) can roll over short tube (11), short tube (11) two ends can be rolled over by Flange joint on pipeline (3), short tube (11) can be rolled over and be wound around attemperator outward; In described step e, under dismounting, short tube (11) two ends can be rolled over, and observation can roll over short tube (11) inwall residue adhesion condition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849366.0A CN105509784A (en) | 2015-11-27 | 2015-11-27 | Simulated testing apparatus for circulating pipeline and TiCl4-vanadium-removing pipeline blockage condition testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849366.0A CN105509784A (en) | 2015-11-27 | 2015-11-27 | Simulated testing apparatus for circulating pipeline and TiCl4-vanadium-removing pipeline blockage condition testing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238643A (en) * | 2018-09-21 | 2019-01-18 | 大连理工大学 | A kind of full visualization circulating pipe system monitoring Hydrate Plugging |
| CN110330052A (en) * | 2019-07-11 | 2019-10-15 | 攀钢集团钛业有限责任公司 | Titanium tetrachloride vapors recycling device and application method |
| CN111659180A (en) * | 2020-06-10 | 2020-09-15 | 攀钢集团攀枝花钢铁研究院有限公司 | Slurry solid-liquid separation device and method for separating vanadium-removing slurry by using same |
| CN113281213A (en) * | 2021-07-02 | 2021-08-20 | 攀钢集团钒钛资源股份有限公司 | Vanadium removal efficiency detection method and device |
| CN114061998A (en) * | 2021-11-10 | 2022-02-18 | 西安交通大学 | High-temperature photo-thermal circulation simulation experiment platform and method for binary chloride |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109238643A (en) * | 2018-09-21 | 2019-01-18 | 大连理工大学 | A kind of full visualization circulating pipe system monitoring Hydrate Plugging |
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| CN111659180B (en) * | 2020-06-10 | 2022-08-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Slurry solid-liquid separation device and method for separating vanadium-removing slurry by using same |
| CN113281213A (en) * | 2021-07-02 | 2021-08-20 | 攀钢集团钒钛资源股份有限公司 | Vanadium removal efficiency detection method and device |
| CN114061998A (en) * | 2021-11-10 | 2022-02-18 | 西安交通大学 | High-temperature photo-thermal circulation simulation experiment platform and method for binary chloride |
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Application publication date: 20160420 |