CN219121776U

CN219121776U - Chlorination furnace sampling device

Info

Publication number: CN219121776U
Application number: CN202223429852.1U
Authority: CN
Inventors: 杨丹; 刘峰; 和奔流; 刘红星
Original assignee: Longbai Lufeng Titanium Industry Co ltd
Current assignee: Longbai Lufeng Titanium Industry Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-02
Anticipated expiration: 2032-12-21

Abstract

The utility model relates to the technical field of titanium dioxide manufacturing by a chlorination method, in particular to a chlorination furnace sampling device which comprises a chlorination furnace, a sample collector and a tail gas absorber, wherein the chlorination furnace and the sample collector are communicated through a connecting pipeline, a control valve is arranged on the connecting pipeline, a first gas purging pipeline is connected to the outer wall of the connecting pipeline between the chlorination furnace and the control valve, and a second gas purging pipeline is connected to the outer wall of the connecting pipeline between the sample collector and the control valve. Under the action of centrifugal force, the bed particles are discharged from the sample discharge pipeline, and the gas enters the tail gas absorber from the outlet. If no particles are discharged from the bottom, the gas fluidization pipeline is opened to treat the sample of the sample collector until the materials are discharged, the sampling is convenient, the titanium tetrachloride is not adhered, and the sampling can be carried out even if the caking materials exist.

Description

Chlorination furnace sampling device

Technical Field

The utility model relates to the technical field of titanium dioxide manufacturing by a chlorination method, in particular to a sampling device of a chlorination furnace.

Background

The boiling chlorination process is to fluidize titanium-containing particles and carbon-containing particles by utilizing the action force of chlorine gas, and the two substances are fully contacted to generate chlorination reaction. In industry, titanium-containing particles are generally chlorinated by high titanium slag, synthetic rutile and the like, and carbon-containing particles are generally petroleum coke. The optimal state of the boiling chlorination process is that titanium-containing particles and carbon-containing particles are fully in fluidized contact, complete reaction is realized, no chlorine gas escapes, and the material utilization rate is high; in the specific implementation, the proportion of titanium-containing particles, carbon-containing particles and impurity elements is controlled according to the chlorine consumption, and the reaction state is monitored to determine whether the reaction state is in a normal fluidization state or not, so that the phenomena of material agglomeration and the like are avoided. Therefore, the process for preparing the titanium tetrachloride by boiling chlorination needs to be analyzed and monitored, sampling is an indispensable link, namely, materials are taken out of a chlorination furnace, the titanium-carbon ratio, impurity elements and the like in a bed layer are analyzed, and whether the taken sample is agglomerated or not is observed.

The prior art carries out cooling treatment for driving into the cooling water to the sample jar for the sampling process is simpler, but follow the chlorination stove and can't avoid carrying titanium tetrachloride, if directly use the cooling water to cool off the sample jar, the titanium tetrachloride of escape condenses on the tank wall easily, and the adhesion material leads to the difficult unloading of sample jar material, if the material of adhesion does not clear up, can influence new sample. In addition, if the chlorination furnace runs abnormally, caking materials are generated in the bed layer, and the caking materials are inconvenient to discharge by using the device.

Disclosure of Invention

The utility model aims to provide a sampling device of a chlorination furnace, which aims to solve the problems that titanium tetrachloride is easily condensed on the wall of a tank, is not easy to discharge and is inconvenient to discharge a caking material in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a chlorination furnace sampling device comprises a chlorination furnace, a sample collector and a tail gas absorber;

the chlorination furnace is communicated with the sample collector through a connecting pipeline, a control valve is arranged on the connecting pipeline, a first gas purging pipeline is connected to the outer wall of the connecting pipeline between the chlorination furnace and the control valve, and a second gas purging pipeline is connected to the outer wall of the connecting pipeline between the sample collector and the control valve;

the bottom of the sample collector is connected with a sample discharging pipeline, and the top of the sample collector is connected with a vacuumizing pipeline.

Preferably, the distance between the first gas purging pipeline and the control valve is 1-30cm.

Preferably, the distance between the second gas purging pipeline and the control valve is 1 cm to 20cm.

Preferably, the sample collector employs a cyclone.

Preferably, the outer wall of the sample collector is connected with a first gas fluidization pipeline and a second gas fluidization pipeline.

Preferably, the tail gas absorber is also communicated with the sample collector through a connecting pipeline.

Preferably, an air pipe for discharging the treated tail gas is arranged at the top of the tail gas absorber.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the sampling device of the chlorination furnace, when sampling is needed for analysis, a vacuumizing pipeline is opened, and a part of the sampling device forms a certain vacuum degree; closing the vacuumizing pipeline, opening a first gas purging pipeline, and cooling and purging the outlet of the chlorination furnace; opening a control valve, and enabling materials to flow out at a higher speed under the action of pressure difference between the chlorination furnace and the sampling device; opening a second gas purging pipeline to cool the material; the materials are mixed and blown into a sample collector, bed particles are discharged from a sample discharge pipeline under the action of centrifugal force, and the gas enters an exhaust gas absorber from an outlet. If no particles are discharged from the bottom, the gas fluidization pipeline is opened to treat the sample of the sample collector until the materials are discharged, the sampling is convenient, the titanium tetrachloride is not adhered, and the sampling can be carried out even if the caking materials exist.

2. In this chlorination furnace sampling device, be connected with first gas fluidization pipeline and second gas fluidization pipeline on the outer wall of sample collector, if chlorination furnace bed caking, there is the bulk material to take out, and first gas fluidization pipeline and second gas fluidization pipeline can smash the material, make things convenient for the unloading.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain, however, the utility model.

FIG. 1 is a schematic flow chart of the present utility model.

Meaning of each reference numeral in the drawings:

1. a chlorination furnace; 2. a sample collector; 3. a tail gas absorber; 4. an air pipe; 5. a control valve; 6. a first gas purge line; 7. a second gas purge line; 8. a first gas fluidization line; 9. a second gas fluidization line; 10. a sample discharge pipeline; 11. a vacuumizing pipeline; 12. and connecting pipelines.

Detailed Description

The following description of embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

A chlorination furnace sampling device, as shown in fig. 1, comprises a chlorination furnace 1, a sample collector 2 and a tail gas absorber 3; the chlorination furnace 1 is communicated with the sample collector 2 through a connecting pipeline 12, a control valve 5 is arranged on the connecting pipeline 12, a first gas purging pipeline 6 is connected to the outer wall of the connecting pipeline 12 between the chlorination furnace 1 and the control valve 5, and a second gas purging pipeline 7 is connected to the outer wall of the connecting pipeline 12 between the sample collector 2 and the control valve 5; the bottom of the sample collector 2 is connected with a sample discharging pipeline 10, and the top of the sample collector 2 is connected with a vacuumizing pipeline 11.

Further, the distance between the first gas purging pipeline 6 and the control valve 5 is 1-30cm, and the distance between the second gas purging pipeline 7 and the control valve 5 is 1-20cm.

Specifically, the sample collector 2 adopts a cyclone separator, the bed sample from the chlorination furnace 1 enters the tail gas absorber 3 through the outlet under the action of centrifugal force, sample particles are collected from the bottom, the cyclone separator forms pressure drop with the chlorination furnace by utilizing a vacuumizing device, and material particles can enter the sample collector 2 at a certain speed to form a better centrifugal separation effect. According to the gas speed that cyclone required, calculate the pressure differential that chlorination stove and sampling device need form, and then calculate required vacuum, be connected with first gas fluidization pipeline 8 and second gas fluidization pipeline 9 on the outer wall of sample collector 2, if the chlorination stove bed caking, will have the bulk material to take out, first gas fluidization pipeline 8 and second gas fluidization pipeline 9 can smash the material, make things convenient for the unloading.

In addition, the tail gas absorber 3 is also communicated with the sample collector 2 through a connecting pipeline 12, and an air pipe 4 for discharging the treated tail gas is arranged at the top of the tail gas absorber 3.

The working principle of the chlorination furnace sampling device is as follows: when in use, when sampling is needed for analysis, the vacuumizing pipeline 11 is opened, and a sampling device part forms a certain vacuum degree; closing the vacuumizing pipeline 11, opening the first gas purging pipeline 6, and cooling and purging the outlet of the chlorination furnace; opening a control valve 5, and flowing out the materials at a higher speed under the action of the pressure difference between the chlorination furnace 1 and the sample collector 2;

opening a second gas purging pipeline 7 to cool the material; the materials are mixed and blown into the sample collector 2, bed particles are discharged from the sample discharge pipeline 10 under the action of centrifugal force, and the gas enters the tail gas absorber 3 from an outlet. If no particles are discharged from the bottom, opening a first gas fluidization pipeline 8 and a second gas fluidization pipeline 9, and processing the sample of the sample collector until the materials are discharged;

after the bottom is sampled by a sufficient weight, the sampling is finished, the control valve 5 is closed, the first gas purging pipeline 6 and the second gas purging pipeline 7 continue to purge, the first gas purging pipeline 6 returns the titanium tetrachloride to the chlorination furnace 1, and the second gas purging pipeline 7 purges the sampling device until the sample collector 2 has no material to discharge; after 30s-1min, the first gas purge line 6 and the second gas purge line 7 are closed.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A chlorination furnace sampling device, characterized in that: comprises a chlorination furnace (1), a sample collector (2) and a tail gas absorber (3);

the chlorination furnace is communicated with the sample collector (2) through a connecting pipeline (12), a control valve (5) is arranged on the connecting pipeline (12), a first gas purging pipeline (6) is connected to the outer wall of the connecting pipeline (12) between the chlorination furnace (1) and the control valve (5), and a second gas purging pipeline (7) is connected to the outer wall of the connecting pipeline (12) between the sample collector (2) and the control valve (5);

the bottom of the sample collector (2) is connected with a sample discharging pipeline (10), and the top of the sample collector (2) is connected with a vacuumizing pipeline (11).

2. The chlorination furnace sampling device of claim 1, wherein: the distance between the first gas purging pipeline (6) and the control valve (5) is 1-30cm.

3. The chlorination furnace sampling device of claim 1, wherein: the distance between the second gas purging pipeline (7) and the control valve (5) is 1 cm to 20cm.

4. The chlorination furnace sampling device of claim 1, wherein: the sample collector (2) adopts a cyclone separator.

5. The chlorination furnace sampling device of claim 1, wherein: the outer wall of the sample collector (2) is connected with a first gas fluidization pipeline (8) and a second gas fluidization pipeline (9).

6. The chlorination furnace sampling device of claim 1, wherein: the tail gas absorber (3) is also communicated with the sample collector (2) through a connecting pipeline (12).

7. The chlorination furnace sampling device of claim 1, wherein: the top of the tail gas absorber (3) is provided with a gas pipe (4) for discharging the treated tail gas.