CN110672376A - Titanium chloride white online sampling device - Google Patents

Titanium chloride white online sampling device Download PDF

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Publication number
CN110672376A
CN110672376A CN201911005319.2A CN201911005319A CN110672376A CN 110672376 A CN110672376 A CN 110672376A CN 201911005319 A CN201911005319 A CN 201911005319A CN 110672376 A CN110672376 A CN 110672376A
Authority
CN
China
Prior art keywords
sampler
shell layer
titanium
chloride
white
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911005319.2A
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Chinese (zh)
Inventor
李冬勤
杜明
周艾然
陆平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd
Original Assignee
Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd filed Critical Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd
Priority to CN201911005319.2A priority Critical patent/CN110672376A/en
Publication of CN110672376A publication Critical patent/CN110672376A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006Dispersed solids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices
    • G01N2001/1418Depression, aspiration
    • G01N2001/1427Positive displacement, piston, peristaltic

Abstract

The invention relates to the field of titanium chloride white production equipment, in particular to a titanium chloride white online sampling device capable of effectively meeting the online sampling requirement of a titanium chloride white oxidation process. The gas can enter a tail gas system of the oxidation reactor through an outlet pipeline of the cyclone dust collector to prevent the residual and leakage of titanium tetrachloride and chlorine; and a discharge hole is formed in the bottom of the cyclone dust collector and used for obtaining sample materials. The invention has simple and ingenious structural design, well meets the requirement of on-line sampling of the titanium white chloride oxidation process, and also ensures the corresponding safety requirement. The invention is particularly suitable for on-line sampling of titanium white chloride.

Description

Titanium chloride white online sampling device
Technical Field
The invention relates to the field of titanium chloride white production equipment, in particular to an online titanium chloride white sampling device.
Background
The titanium dioxide process by the chlorination method is mature in developed countries, in recent years, domestic enterprises invest a large amount of manpower, financial resources and material resources in research, development and production of titanium dioxide chloride, although the capacity of titanium dioxide chloride is improved year by year, the domestic titanium dioxide process still faces a plurality of problems, especially the granularity control and the oxidation mechanism of the titanium dioxide product are still not mastered, the oxidation mechanism of titanium dioxide chloride needs to be researched, oxidation products at different positions need to be tracked and sampled online, the oxidation process of titanium dioxide has high temperature and toxic gases such as chlorine and titanium tetrachloride, industrial sampling is carried out in a common low-temperature area or a blanking pipe below a bag filter, the requirement on a sampler is low, and online sampling under the high-temperature condition cannot be met.
CN209117407U discloses a sampling device of chlorination process titanium dioxide semi-manufactured goods, with bag filter below unloading pipe intercommunication, only need a nitrogen gas to sweep and can realize sweeping sampling device after the sample, can realize again that chlorine blows the unloading pipe in bag filter below with the chlorine in the sample process, chlorine when avoiding taking a sample escapes. CN109163932A discloses a powder sampling device, includes a transport shell, sets up transport shell in the screw rod, screw rod pivoted motor etc. easy operation, safe swift is applicable to the sample of all kinds of powders, and is little to outer packing material damage such as braided bag simultaneously. CN208568364U A high temperature powder sampling device, including a feed pipe and a material containing pot, wherein the pipeline of the feed pipe is provided with a high temperature valve, one end of the feed pipe is communicated with the interior of the reactor, and the other end is communicated with the interior of the material containing pot; the hammer-shaped side wall of the material containing kettle is provided with a single-screw head and a sealing cap, and is provided with an air inlet pipe and an air outlet pipe. The above sampling device still can not satisfy the online sampling of titanium white chloride oxidation technology different positions.
Disclosure of Invention
The invention aims to solve the technical problem of providing the titanium white chloride online sampling device which can effectively meet the online sampling requirement of the titanium white chloride oxidation process.
The technical scheme adopted by the invention for solving the technical problems is as follows: titanium chloride white online sampling device, including the sample inlet pipe that is provided with the on-off switch, be provided with the spiral sample brush in the sample inlet pipe, the exit end and the cyclone intercommunication of sample inlet pipe, the cyclone top is provided with cyclone outlet pipe way, and the cyclone bottom is provided with the discharge gate.
Further, the sample inlet pipe comprises sampler shell layer and sampler shell layer, the rotatable setting in sampler shell layer of sampler shell layer, the meniscus end lock of sampler shell layer and sampler shell layer in the sampler shell layer, the switching of sample inlet pipe is realized when rotating sampler shell layer.
Further, a gas purging inlet is arranged on the inner shell layer of the sampler.
Further, the central axis of the spiral sampling brush is arranged in line with the central axes of the sampler outer shell layer and the sampler inner shell layer.
Furthermore, the outlet end of the sampling feed pipe is communicated with a cyclone dust collector through a discharge pipeline.
Furthermore, the outlet end of the sampling feed pipe is communicated with the discharge pipeline through a powder carrier gas inlet.
Further, a gas valve is arranged on an outlet pipeline of the cyclone dust collector.
Further, the cross section of the cyclone dust collector is circular.
Furthermore, the cyclone dust collector is made of quartz glass.
The invention has the beneficial effects that: when in actual use, a sampling port is reserved on a pipeline at the rear end of the titanium white chloride oxidation reaction, and a sampling feeding pipe of the device is arranged in the sampling port. When a sample is needed, the on-off switch is opened, a small amount of sample enters the sampling feed pipe, and the sample is driven by the spiral sampling brush to be conveyed to the cyclone dust collector. The top of the cyclone dust collector is provided with an outlet pipeline of the cyclone dust collector, so that gas can enter a tail gas system of the oxidation reactor through the outlet pipeline of the cyclone dust collector, and the residual and leakage of titanium tetrachloride and chlorine are prevented; and a discharge hole is formed in the bottom of the cyclone dust collector and used for obtaining sample materials. The invention has simple and ingenious structural design, well meets the requirement of on-line sampling of the titanium white chloride oxidation process, and also ensures the corresponding safety requirement. The invention is particularly suitable for on-line sampling of titanium white chloride.
Drawings
FIG. 1 is a schematic view of the internal helical sampling brush of the present invention.
Fig. 2 is an external structural view of the present invention.
Labeled as: the device comprises a spiral sampling brush 1, a sampler outer shell layer 2, a sampler inner shell layer 3, a gas purging inlet 4, a powder carrier gas inlet 5, a discharge pipeline 6, a cyclone dust collector 7, a discharge port 8, a cyclone dust collector outlet pipeline 9 and a gas valve 10.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The titanium chloride white online sampling device shown in fig. 1 and 2 comprises a sampling feeding pipe provided with an on-off switch, wherein a spiral sampling brush 1 is arranged in the sampling feeding pipe, the outlet end of the sampling feeding pipe is communicated with a cyclone dust collector 7, a cyclone dust collector outlet pipeline 9 is arranged at the top of the cyclone dust collector 7, and a discharge hole 8 is formed in the bottom of the cyclone dust collector 7.
In practical use, in order to further simplify the structure of the sampling feed pipe, the following scheme can be selected: the sample inlet pipe comprises sampler shell layer 2 and sampler shell layer 3, shell layer 3 is rotatable to be set up in sampler shell layer 2 in the sampler, and the meniscus end of shell layer 3 and the meniscus end lock of sampler shell layer 2 in the sampler realize the switching of sample inlet pipe when rotating shell layer 3 in the sampler. As shown in fig. 1 and fig. 2, the sampler outer shell layer 2 and the sampler inner shell layer 3 are of an inner and outer sleeving structure, wherein, the meniscus end of the sampler inner shell layer 3 is buckled with the meniscus end of the sampler outer shell layer 2, when the sampler inner shell layer 3 is rotated, the opening and closing of the sampling feeding pipe are realized, and the cylinder end of the sampler inner shell layer 3 realizes the airtight conveying function of the material, when in actual use, the meniscus end of the sampler inner shell layer 3 and the meniscus end of the sampler outer shell layer 2 need to be arranged in the sampling port, so as to realize the taking of the material. When sampling is needed, the inner shell layer 3 of the sampler is rotated to enable two originally buckled half-moon ends to appear in a gap, and sample materials immediately enter a sampling feed pipe; when the sampling is not needed, the inner shell layer 3 of the sampler is rotated to enable the two half-moon ends to be buckled to realize the sealing, and then a sampling feeding pipe isolated from the sampling port is constructed. In order to ensure smooth feeding, it is preferable to keep the opening formed at the end of the two half-months facing the incoming flow direction of the oxidation reactor gas. For the efficiency of the material drive in general, it is preferred that the central axis of the helical sampling brush 1 is arranged in line with the central axes of the sampler housing layer 2 and the sampler inner housing layer 3.
In practical use, in order to purge toxic gases such as titanium tetrachloride and chlorine gas in the cyclone 7 into the outlet pipe 9 of the cyclone, it is preferable to adopt a scheme in which: and a gas purging inlet 4 is arranged on the inner shell layer 3 of the sampler. In practical use, after the on-off switch of the sampling feeding pipe is closed, gas can be filled into the gas purging inlet 4, so that toxic gases such as titanium tetrachloride, chlorine and the like in the cyclone dust collector 7 are purged into the outlet pipeline 9 of the cyclone dust collector, and the toxic gases such as titanium tetrachloride, chlorine and the like cannot escape when the discharge hole 8 of the cyclone dust collector 7 is opened. In addition, the gas input from the gas purge inlet 4 can also clean the residual sample on the spiral sampling brush 1. Generally, the valve of the gas purging inlet 4 is opened and the control motor of the spiral sampling brush 1 is kept to be started for 10-30 s, so that the residual sample on the spiral sampling brush 1 can be fully cleaned.
For smooth material conveying, the outlet end of the sampling feeding pipe is preferably communicated with a cyclone dust collector 7 through a discharge pipeline 6.
In order to quickly convey the powder into the cyclone dust collector 7 and simultaneously dilute and cool the high-temperature powder and the residual toxic gases such as titanium tetrachloride, chlorine and the like which enter the sampler along with the powder, the scheme is preferably as follows: the outlet end of the sampling feed pipe is communicated with the discharge pipeline 6 through a powder carrier gas inlet 5. As shown in figure 1, the gas input from the powder carrier gas inlet 5 not only provides power for the materials to enter the cyclone dust collector 7, but also can dilute and cool the high-temperature powder and the residual toxic gases such as titanium tetrachloride and chlorine which enter the sampler along with the powder, and can enhance the effect of discharging the residual toxic gases such as titanium tetrachloride and chlorine through the outlet pipeline 9 of the cyclone dust collector.
In order to prevent toxic gases such as titanium tetrachloride and chlorine from flowing back into the cyclone 7 when sampling through the discharge port 8 of the cyclone 7, a gas valve 10 may be optionally provided on the outlet pipe 9 of the cyclone. When the cyclone dust collector is actually used, the gas valve 10 is closed, and then the discharge hole 8 of the cyclone dust collector 7 is opened, so that sample materials can be safely taken out.
Generally, in order to form a good cyclone effect, it is preferable that the cyclone 7 has a circular cross section as shown in fig. 1. The discharge pipeline 6 preferably inputs gas along the tangential direction of the wall surface of the cyclone dust collector 7, so that the cyclone effect is enhanced.
In order to observe a sample in the cyclone collector 7 and prevent a glass instrument from being damaged by high temperature, the cyclone collector is preferably made of quartz glass.
The sampling work of conveying powder materials in the high-temperature pipeline can be completed under the condition of not stopping the operation condition of the oxidation reactor, and meanwhile, the leakage of chlorine and titanium tetrachloride gas in the pipeline and the gas residue in a sample can be prevented in the sampling process, so that the safety of sampling personnel is guaranteed.

Claims (9)

1. Titanium white online sampling device of chloride, its characterized in that: including the sample inlet pipe that is provided with the on-off switch, be provided with spiral sample brush (1) in the sample inlet pipe, the exit end and cyclone (7) intercommunication of sample inlet pipe, cyclone (7) top is provided with cyclone outlet pipe (9), and cyclone (7) bottom is provided with discharge gate (8).
2. The titanium white chloride online sampling device of claim 1, wherein: the sample inlet pipe comprises shell layer (3) in sampler shell layer (2) and the sampler, shell layer (3) is rotatable to be set up in sampler shell layer (2) in the sampler, and half month end and the half month end lock of sampler shell layer (2) in the sampler are when rotating shell layer (3) in the sampler and are realized the switching of sample inlet pipe.
3. The titanium white chloride online sampling device of claim 2, wherein: the inner shell layer (3) of the sampler is provided with a gas purging inlet (4).
4. The titanium white chloride online sampling device of claim 2, wherein: the central axis of the spiral sampling brush (1) is arranged in a collinear way with the central axes of the sampler outer shell layer (2) and the sampler inner shell layer (3).
5. The titanium chloride white online sampling device of claim 1, 2, 3 or 4, wherein: the outlet end of the sampling feed pipe is communicated with a cyclone dust collector (7) through a discharge pipeline (6).
6. The titanium white chloride online sampling device of claim 5, wherein: the outlet end of the sampling feed pipe is communicated with a discharge pipeline (6) through a powder carrier gas inlet (5).
7. The titanium chloride white online sampling device of claim 1, 2, 3 or 4, wherein: and a gas valve (10) is arranged on an outlet pipeline (9) of the cyclone dust collector.
8. The titanium chloride white online sampling device of claim 1, 2, 3 or 4, wherein: the cross section of the cyclone dust collector (7) is circular.
9. The titanium chloride white online sampling device of claim 1, 2, 3 or 4, wherein: the cyclone dust collector is made of quartz glass.
CN201911005319.2A 2019-10-22 2019-10-22 Titanium chloride white online sampling device Pending CN110672376A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111795843A (en) * 2020-06-19 2020-10-20 浙江全世科技有限公司 Powdery sample online sampling device based on gas scattering

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205719663U (en) * 2016-06-06 2016-11-23 吉林云天化农业发展有限公司 Real time sample device
CN106865601A (en) * 2015-12-10 2017-06-20 云南冶金新立钛业有限公司 The method that tail gas gathers dust with blanking in titanium tetrachloride production
CN209117407U (en) * 2018-12-03 2019-07-16 河南佰利联新材料有限公司 A kind of sampler of chloride process titanium dioxide semi-finished product
CN110186720A (en) * 2019-06-28 2019-08-30 攀钢集团钛业有限责任公司 Titanium white chloride aoxidizes outlet of still sampler
CN209480750U (en) * 2018-12-25 2019-10-11 重庆多仑建材有限公司 A kind of coating raw material conveying device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106865601A (en) * 2015-12-10 2017-06-20 云南冶金新立钛业有限公司 The method that tail gas gathers dust with blanking in titanium tetrachloride production
CN205719663U (en) * 2016-06-06 2016-11-23 吉林云天化农业发展有限公司 Real time sample device
CN209117407U (en) * 2018-12-03 2019-07-16 河南佰利联新材料有限公司 A kind of sampler of chloride process titanium dioxide semi-finished product
CN209480750U (en) * 2018-12-25 2019-10-11 重庆多仑建材有限公司 A kind of coating raw material conveying device
CN110186720A (en) * 2019-06-28 2019-08-30 攀钢集团钛业有限责任公司 Titanium white chloride aoxidizes outlet of still sampler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111795843A (en) * 2020-06-19 2020-10-20 浙江全世科技有限公司 Powdery sample online sampling device based on gas scattering
CN111795843B (en) * 2020-06-19 2023-09-26 浙江全世科技有限公司 Online sampling device of powdered sample based on gas breaks up

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Application publication date: 20200110